Fujian Ruisen New Materials Co., Ltd.

What is the Principle of the Disc Insulator(2022年11月25日)

cnruisen — 2022-11-25T17:22:11+0900

https://www.cnruisen.com/what-is-the-principle-of-the-disc-insulator.html

Ⅰ. What is Disc insulator?

Disc insulator is generally made of insulating parts (such as porcelain parts) and metal accessories (such as steel feet, iron caps and flanges) glued with glue or mechanically clamped. It is widely used in power systems and generally belongs to external insulation and operates under atmospheric conditions. Overhead transmission lines, bus bars of power plants and substations, and external live conductors of various electrical equipment must be supported by insulators.

Ⅱ. Working principle of disc insulator

1. Some enhancers are located upstream of the promoter and some are located downstream, so the effect of the disc insulator does not depend on the relative orientation of the insulator and the promoter. Therefore, the reason for the directionality of the insulator effect has not really been clarified.

2. It has been found that there are two loci that affect the function of disc insulators by trans-activation. The nucleoprotein encoded by the gene S2J (Hw) recognizes the insulator, and the insulator has an insulating effect only after it is combined with it. When the gene is mutated, although an insulator is inserted in the y locus, the insulating effect is lost, and y is expressed in all tissues.

3. The other locus is mod. After that gene is mutated, its effect is just opposite to that of Su, that is, these mutants all enhance the insulating effect, so that the insulating effect of the insulator is not directional but expanding. It blocked the effect of enhancers at the upstream and downstream ends.

There is a kind of explanation that the electrical power insulator has an insulating effect after Su is first combined with the insulator DNA. Mod (mdg4) is combined with Su (Hw) to make the insulator lose its insulation effect; the abrupt mod (mdg4) cannot be combined with Su (Hw), so the insulator enhances the insulation effect.

Ruisen, as an excellent coating supplier china, offers a wide range of rtv silicone coating for you to choose from.

What Is Disc Type Insulator?(2022年11月25日)

cnruisen — 2022-11-25T17:21:38+0900

https://www.cnruisen.com/what-is-disc-type-insulator.html

Ⅰ. What is Disc insulator?

Disk insulator is generally made of insulating parts (such as porcelain parts) and metal accessories (such as steel feet, iron caps and flanges) glued with glue or mechanically clamped. It is widely used in power systems and generally belongs to external insulation and operates under atmospheric conditions. Overhead transmission lines, bus bars of power plants and substations, and external live conductors of various electrical equipment must be supported by insulators.

Ⅱ. Working principle of disc type insulator

2. It has been found that there are two loci that affect the function of disk type insulator by trans-activation. The nucleoprotein encoded by the gene S2J (Hw) recognizes the insulator, and the insulator has an insulating effect only after it is combined with it. When the gene is mutated, although an insulator is inserted in the y locus, the insulating effect is lost, and y is expressed in all tissues.

For more information about types of disc insulator, please feel free to contact us!

Ruisen, as one of the most excellent chinese silicone manufacturers, offers a wide range of rtv silicone coating for you to choose from.

What Are the Functions of Pin Type Insulators?(2022年11月25日)

cnruisen — 2022-11-25T17:20:34+0900

https://www.cnruisen.com/what-are-the-functions-of-pin-type-insulators.html

As a product commonly used in power system construction, pin type insulators have many functions that are welcomed. What are the specific functions?

Pin type insulators mainly have the following properties:

1. Electrical function: The destructive discharge that occurs along the surface of the insulation is called flashover, and the flashover characteristic is the primary electrical function of the pin type insulator. Regarding different voltage levels, the withstand voltage requirements of insulators are different, and the purpose is power interference, wet-withstand voltage, lightning impulse withstand voltage, lightning impulse chopping withstand voltage, operation impulse withstand voltage, etc.

To avoid breakdown during operation, the breakdown voltage of the insulator is higher than the flashover voltage. In the factory test, the breakdown type porcelain insulator is generally subjected to the spark test, that is, high voltage is applied to cause frequent sparks on the insulation surface, and after a certain period of time see if it is broken down.

2. Mechanical function: Insulators are often affected by the gravity and tension of the wire, wind, ice weight, insulator's own weight, wire oscillation, equipment operation mechanical force, short-circuit electric power, earthquake and other mechanical forces during operation. Relevant regulations have strict requirements on mechanical functions.

3.Thermal function: Field insulators are required to have the function of withstanding drastic temperature changes. For example, porcelain insulators require several cycles of cooling and heating without cracking. Due to the current passing through the insulating sleeve, the temperature rise of its parts and insulating parts and the allowable short-term current value must comply with the relevant regulations.

For more information about pin type insulator diagram and what is pin type insulator, please feel free to contact us!

Ruisen, as one of the most excellent chinese silicone manufacturers, offers a wide range of spray on silicone rubber coating for you to choose from.

What are the Characteristics of Anti-Pollution Flashover Coatings?(2022年11月25日)

cnruisen — 2022-11-25T17:19:33+0900

https://www.cnruisen.com/what-are-the-characteristics-of-antipollution-flashover-coatings.html

Anti pollution paint refers to the dirt attached to the insulating surface of electrical equipment. Under humid conditions, insoluble substances gradually dissolve in water, forming a conductive film on the insulating surface. This not only greatly reduces the insulation level of the insulator, but also prevents the strong discharge phenomenon under the action of the electric field force.

Its specific characteristics are as follows:

1. If the pollution flashover voltage of the external insulation of power transmission and transformation equipment is greatly increased, the pollution flashover voltage can be increased to more than 200% to ensure the safe operation of power equipment. The anti-pollution flashover coating has excellent electrical and mechanical properties, strong hydrophobic and hydrophobic migration, strong adhesion as well as long service life;

2. The anti-pollution flashover coating is a one-component coating, and it does not need to be mixed during use. It can be sprayed directly on the surface of the electric porcelain after the sealed package is opened. After being in contact with water molecules in the air, it solidifies into a film, which can effectively ensure quality, reduce waste, and make construction simple. The residue of anti-pollution flashover coating does not conduct electricity after combustion, and there is no hidden danger for equipment operation;

3. The flammability index of anti-pollution flashover coating is not lower than FV-1 level. This index is especially suitable for insulation and anti-pollution work of DC transmission as well as transformation equipment of power system. In the normal use of the equipment, the electrical external insulation equipment after spraying the anti-pollution flashover coating can be free of cleaning and maintenance. This can save a lot of manpower and material resources for cleaning the external insulation equipment.

After the anti-pollution flashover coating is applied to the surface of the insulator, the formed coating covers the entire surface of the insulator and isolates the insulation product from contact with contaminated substances. When the pollutant material falls on the surface of the insulator, it touches the coating of the anti-pollution flashover paint.

Ruisen, as one of the most excellent chinese silicone manufacturers, offers a wide range of rubber insulation spray for you to choose from.

Standard suspended glass insulator(2022年11月25日)

cnruisen — 2022-11-25T17:19:01+0900

https://www.cnruisen.com/standard-suspended-glass-insulator.html

The insulator has the characteristic of itself - breaking zero value. As long as the observation can be done on the ground or in the helicopter, no boarding pole piece by piece inspection, which is helpful for reducing the labor intensity of workers.

The self-breaking rate of the introduced production line is 0.02-0.04% annually, which can save the maintenance cost of the line. Good resistance to arc and vibration

The surface of the suspended glass insulator is still smooth vitreous body after being burned by lightning in operation, and there is a protective layer of tempered internal stress, so it still retains enough insulation energy and mechanical strength.

On the 500kv line, there are many disasters caused by ice-bound conductors. After testing the glass insulator after dancing, the electromechanical performance is not attenuated.

Self-cleaning performance is good and not easy to aging, according to the generally report of power department that the glass insulator is not easy to dirt and easy to clean, south line running suspended glass insulator after rain washed more clean.

The electromechanical properties of suspended glass insulators on typical regional lines are regularly sampled and measured. The accumulated data of thousands of data show that the electromechanical properties of glass insulators after 35 years of operation are basically the same as those at the factory, and there is no aging phenomenon.

Ruisen, as one of the most excellent chinese silicone manufacturers, offers a wide range of silicone rubber coating for you to choose from.

Slot Button Type Silicone Rubber Busbar Joint Box(2022年11月25日)

cnruisen — 2022-11-25T17:18:09+0900

https://www.cnruisen.com/slot-button-type-silicone-rubber-busbar-joint-box.html

I. Overview

The slot button type silicone rubber busbar joint box is made of radiation-crosslinked polyolefin material, which has excellent physical and chemical properties. It is an insulation treatment material for the connection of the busbar, and is also suitable for the voltage level of 1KV/10KV/35KV. There are various shape protection boxes such as "I", "T" and "L". The slot button type silicone rubber busbar joint box has the functions of electrical insulation, anti-rust and anti-corrosion of solder joints, mechanical protection, and reduced phase spacing, which is widely used in electronics, communication, machinery manufacturing and other fields.

II. Characteristics
Low smoke, soft, flame retardant, high strength, resistant to carbon marks Environmental standards: RoHS Standard color: red, yellow, green, and other colors can be customized. III. Main application

It is mainly used for insulation protection of electrical equipment conductors at electrical connection, as well as insulation protection for special parts such as high and low voltage switchgear, circuit breakers, rubber junction box and busbar connection box processing, and transformer terminals.

IV. The basic features:

It is not deformed by irradiation, not deformed by heat, and not shrunk when heated.
The appearance is sharp and angular, the wall thickness is uniform, and the size is accurate.
It has the advantages of stable performance, smooth appearance and long service life.
It can better highlight the equipment grade, making the overall effect is more obvious.

V. Specifications

The specifications for the applicable slot button type silicone rubber busbar joint box are 30*3, 40*4, 50*5, 60*6, 80*8, 100*10, 120*12, 150*12, etc. The shape has type I, straight T and L.
“T” type (the main busbar is vertically overlapped with the branch busbar)
“L” type (the main busbar and the busbar are connected at right angles)

VI. The method of use
Put the busbar heat shrinkable tube on the copper row and heat it with a heat gun. Use screws to hold two copper bars Prepare the busbar connection box of the corresponding specification Place the busbar connection box on the copper bar to be protected. Fix the busbar connection box and completely wrap the copper busbar parts that need protection.

Ruisen, as one of the most excellent chinese silicone manufacturers, offers a wide range of silicone rubber coating for you to choose from.

Selection of Anti Weld Spatter Coating(2022年11月25日)

cnruisen — 2022-11-25T17:16:38+0900

https://www.cnruisen.com/selection-of-anti-weld-spatter-coating.html

As the phenomenon of welding spatter is very common, the use of anti-spatter coating for welding is also very extensive. For general structural parts, the type of welding anti weld spatter coating has little effect, as long as it can effectively prevent welding spatter from adhering to the working surface in the welding process. However, for some key products and workpieces, such as high pressure vessels, if the anti-spatter coating contains too many harmful elements, it may cause spot corrosion, intergranular corrosion, etc. It will cause leakage in the subsequent operation of the equipment and lead to malignant accidents.

The selection of anti spatter coating also needs to be combined with the whole production process and process method. The process flow and process method mainly depend on the part after welding. At present, the technological process of structural parts is mainly divided into two categories: one is post-processing painting, the other is post-coating processing. If it is painting after processing, it must be cleaned before painting in order to remove rust and spray paint because cutting fluid will be used in the process of mechanical processing.

The type of weld spatter resistant coating used in welding of the structure parts of the processed coatings has little effect. Even if oil-based anti-spatter coating is used, it can be completely removed by the cleaning process before painting, and the quality of the spray paint will not be affected. If the coating is processed or not processed, the use of oil-based anti weld spatter coating will bring some problems. Direct shot blasting treatment of structural parts can remove surface rust. But it is difficult to remove oil-based anti weld spatter coating coated on the weld seam of the workpiece. It will adsorb on the surface of the pellet, which causes pollution on the surface of some workpieces with oil stain, seriously affecting the adhesion of the paint film. In order to prevent the influence of oil-based anti-splash coating on subsequent painting, it is necessary to increase the cleaning process and carry out the necessary cleaning of the workpiece. Increasing the cleaning will bring a series of problems, such as production area shortage, cost increase, sewage discharge and so on. Therefore, for the workpieces processed or unprocessed after painting, oil-free anti weld spatter coating should be selected during welding, and water-borne or powder anti weld spatter coating should be used.

Ruisen, as one of the most excellent silicone coating suppliers, offers a wide range of silicone rubber coating for you to choose from.

Points for Attention in Selecting Weld Spatter Resistal coating(2022年10月26日)

cnruisen — 2022-10-28T15:18:27+0900

https://www.cnruisen.com/points-for-attention-in-selecting-weld-spatter-resistant-coating.html

As the phenomenon of welding spatter is very common, the use of weld spatter resistant coating is also very extensive. For general structural parts, the type of weld spatter resistant coating has little effect, as long as it can effectively prevent welding spatter from adhering to the working surface in the welding process. However, for some key products and workpieces, such as high pressure vessels, if the weld spatter resistant coating contains too many harmful elements, it may cause spot corrosion, intergranular corrosion, etc. It will cause leakage in the subsequent operation of the equipment and lead to malignant accidents.

The selection of weld spatter resistant coating also needs to be combined with the whole production process and process method. The process flow and process method mainly depend on the part after welding. At present, the technological process of structural parts is mainly divided into two categories: one is post-processing painting, the other is post-coating processing. If it is painting after processing, it must be cleaned before painting in order to remove rust and spray paint because cutting fluid will be used in the process of mechanical processing.

The type of weld spatter resistant coating used in welding of the structure parts of the processed coatings has little effect. Even if oil-based weld spatter resistant coating is used, it can be completely removed by the cleaning process before painting, and the quality of the spray paint will not be affected. If the coating is processed or not processed, the use of oil-based weld spatter resistant coating will bring some problems. Direct shot blasting treatment of structural parts can remove surface rust. But it is difficult to remove oil-based weld spatter resistant coating coated on the weld seam of the workpiece. It will adsorb on the surface of the pellet, which causes pollution on the surface of some workpieces with oil stain, seriously affecting the adhesion of the paint film. In order to prevent the influence of oil-based anti-splash coating on subsequent painting, it is necessary to increase the cleaning process and carry out the necessary cleaning of the workpiece. Increasing the cleaning will bring a series of problems, such as production area shortage, cost increase, sewage discharge and so on. Therefore, for the workpieces processed or unprocessed after painting, oil-free weld spatter resistant coating should be selected during welding, and water-borne or powder weld spatter resistant coating should be used.

Ruisen as one of the most professional silicone coating suppliers, we provide composite polymer insulator, silicone composite insulators, rtv silicone coating and etc. Want to know more about weld spatter resistant materials? Please contact us.

Performance of Porcelain Station Post Insulators(2022年10月26日)

cnruisen — 2022-10-28T15:17:51+0900

https://www.cnruisen.com/performance-of-porcelain-station-post-insulators.html

The china station post insulators are an important part of power transformation equipment in power station and transformer substation, which play the role of supporting wires and insulation. In recent years, there have been many fracture accidents in the power station and substation in China's power industry, causing damage to the porcelain station post insulators in the service, which will bring harm to the normal operation of the power transmission and transformation system as well as the safety of people's lives and property. So it is necessary to strength the security management in this area.

The porcelain station post insulators are an important part of power transformation equipment in power station and transformer substation, which play the role of supporting wires and insulation. In recent years, there have been many fracture accidents in the power station and substation in China's power industry, causing damage to the porcelain station post insulators in the service, which will bring harm to the normal operation of the power transmission and transformation system as well as the safety of people's lives and property. So it is necessary to strength the security management in this area.

The working environment of the porcelain station post insulators is very harsh. Due to many external factors (such as rain, snow, strong wind, ice coating, sun exposure and so on), the additional stress of insulators is high. In addition, the porcelain station post insulators, which are fired at a high temperature, is a kind of brittle material with low toughness. For example, if there are defects in the internal microstructure of porcelain station post insulators such as the insufficient strength, it is likely that stress concentration occurs at some defect position, especially at the surface, resulting in the instability and propagation of microcracks, which will eventually lead to the fracture failure. In addition, the porcelain station post insulators can be affected by many factors such as the difference of natural temperature and the calorification of conductors during operation, and they will also withstand the test of large temperature difference. Under the thermal stress caused by such change of temperature, the microcracks in the insulators may also be unstable to become expanding, which will seriously affect their service lives. Therefore, it is necessary to grasp the key factors which affect the intrinsic quality of porcelain station post insulators from the aspects of composition, organization structure and performance.

Ruisen is a coating supplier china, we provide ceramic insulator high voltage, china porcelain insulator 5kv, porcelain insulators high voltage and etc. Want to know more? Please contact us.

Only wrapping a layer of silicone rubber insulation self-adhesive tape can meet the insulation requi(2022年10月28日)

cnruisen — 2022-10-28T15:17:15+0900

https://www.cnruisen.com/only-wrapping-a-layer-of-silicone-rubber-insulation-selfadhesive-tape-can-meet-the-insulation-requirements.html

Silicone rubber self adhesive tape is made of silicone rubber and is suitable for various extreme environments. It can maintain excellent electrical insulation and stability in the environment of -54°C to +204°C. It does not contain adhesives, and chemically bonds itself within 24 hours at room temperature, enabling residue-free installation and removal of various mechanical and electrical applications. Different from traditional adhesive-based tapes, this product has excellent dielectric strength. At 180°C, its dielectric strength is at least 300VPM. It also has moisture resistance, oxidation resistance, ozone resistance and corona resistance. In addition, it can ensure continuous and high-efficiency insulation value, and can be tightly wound around complex shapes, uniform and smooth, and has the performance of damping and absorbing mechanical shock.

Application areas of silicone rubber insulated self-fusing tapes include mechanical outer packaging, such as wire winding and wire binding, emergency pipe and hose repair, air duct sealing, coolant pipe repair, and roller traction and protection. Electrical applications include insulation of wire and cable connections and terminals, motor coil insulation, insulation and sealing of electrical connections, and weatherproofing. The robustness of silicone rubber insulating self-fusing tape can perform excellent insulation performance in challenging application scenarios such as aviation and spacecraft, heat transmission pipelines, radiation environments, and underwater environments.

Fujian Ruisen New Material Co., Ltd. is the largest RTV silicon coating (HVIC) manufacturer in China. The silicone rubber insulating self-fusing tapes we manufacture are sold all over the world and have won unanimous praise from customers. Welcome everyone to consult and purchase!

Fujian Ruisen New Materials Co., Ltd. was established in 2007, located in Fujian Province, China. RuiSen is the largest manufacturer of RTV Silicon Coating （HVICs） in China, has many years' experience about R&D, manufacture management, and project management.

Mechanical Properties of High Voltage Insulators(2022年10月28日)

cnruisen — 2022-10-28T15:16:33+0900

https://www.cnruisen.com/mechanical-properties-of-high-voltage-insulators.html

Mechanical properties of high voltage insulators for sale
The basic performance of high voltage insulator includes electrical, mechanical and thermal performance. Also, it has environmental and ageing resistance properties.

① electrical performance: the destructive discharge along the insulation surface is called flashover, which is the main electrical performance of high-voltage insulator. For different voltage levels, the basic performance includes electrical, mechanical and thermal performance. Besides, it has environmental and ageing resistance properties.

The withstand voltage requirements of are different, and the indicators include power frequency dry and wet withstand voltage, lightning impulse withstand voltage, lightning impulse cut-off withstand voltage, operation impulse withstand voltage, etc. To avoid a breakdown in operation, the breakdown voltage of high-voltage insulator is higher than the flashover voltage. In the factory test, the porcelain insulator which can be broken down generally goes through the spark test, that is to say, frequent sparks occur on the surface of the high-voltage insulator for a certain period to see whether it is broken down. Its basic properties include electrical, mechanical and thermal properties. Also, it has environmental and ageing resistance properties.

Corona test, radio interference test, partial discharge test and dielectric loss test are also required. In high altitude area, the electrical strength of insulator decreases due to the decrease of air density, so its withstand voltage should be increased when converted to standard atmospheric conditions. The flashover voltage of polluted high-voltage insulator when it is damp is much lower than its dry and wet flashover voltage. Therefore, in a polluted area, it is necessary to strengthen insulation or adopt pollution resistant insulator, and its creepage distance (ratio of creepage distance to rated voltage) should be higher than that of the normal type. Compared with AC high-voltage insulator, DC insulator has poor electric field distribution, adsorption of pollution particles and electrolysis, low flashover voltage, and generally requires special structure design and larger creepage distance.

② mechanical performance of high-voltage insulator: the model of the high-voltage insulator is often affected by the gravity and tension of conductor, wind force, icing weight, self-weight of an insulator, the vibration of the conductor, the mechanical force of equipment operation, short-circuit electric force, earthquake and other mechanical forces. Relevant standards have strict requirements for mechanical properties.

③ thermal performance of high-voltage insulator: outdoor high-voltage insulator is required to be able to withstand sudden temperature change. For example, porcelain insulator is required to pass several cold and hot cycles without cracking. Due to the current passing through the insulating sleeve, the temperature rise and allowable short-time current value of its parts and insulating parts shall meet the requirements of relevant standards.

Ruisen as one of the most professional porcelain bushing manufacturers, we provide china ceramic bushing insulators, porcelain insulator for transformers, rubber insulation spray and etc. Want to know more? Please contact us.

Introduction to the Advantages and Disadvantages of Glass Disc Insulator(2022年10月28日)

cnruisen — 2022-10-28T15:15:58+0900

https://www.cnruisen.com/introduction-to-the-advantages-and-disadvantages-of-glass-disc-insulator.html

Glass disc insulators are frequently used insulator products in power systems. This article introduces the advantages and disadvantages of glass disc insulators.
Ⅰ. Advantages of pin type insulator
1.Compared with ceramic materials, glass disc insulator has a high dielectric strength.
3. Compared with porcelain insulators, it has higher tensile strength.

4. Because it is transparent, it will not be heated in the sun like porcelain.

5.Because of its transparency, impurities and bubbles can be easily detected in the glass disc insulator.
6.It has a very long service life, because the mechanical and electrical functions of the glass are not affected by aging.
7.Compared with insulators of other materials, the relative price of glass materials is more favorable.

Ⅱ. Disadvantages of suspension type insulator
1.Moisture is easy to condense on the glass surface, so air dust will be deposited on the wedge-shaped glass surface, which will provide a way for the leakage current of the system.
2.For higher voltages, glass cannot be cast into irregular shapes, because the irregular cooling causes internal cooling and internal strain.
Glass disc insulators have their unique characteristics and play a significant role in electric lighting systems. Fujian Ruisen New Materials Co., Ltd. produces and sells all kinds of insulators. If you have any needs, you can contact us for communication at any time.

Ruisen as one of the most professional silicone coating suppliers, we provide epoxy primer spray paint, disc insulator, china rubber coating and etc. Want to know disc insulator quotes or more? Please contact us.

High Voltage Insulation Paint(2022年10月28日)

cnruisen — 2022-10-28T15:15:25+0900

https://www.cnruisen.com/high-voltage-insulation-paint.html

Outside the wire made of copper, aluminum, etc is insulation cover like Insulating paint, plastic, rubber, etc. Insulating paint, plastic, rubber, however, are all afraid of high temperature, generally more than 200 ℃, they have gathered, and lost insulation. But a lot of wires need to work at high temperatures, so how to deal with it? Right, let the electrical insulating paint for metal do a favor. The coating is actually a ceramic paint, in addition to maintaining electrical insulation at high temperatures, it can "bond" closely with metal wires, making it "seamless" . You can wind the wire randomly and they won't be separated. This paint is very dense. If coated with it, two wires with a large voltage difference will not have phenomenon of breakdown. High voltage insulation paint can be divided into many categories according to their chemical composition. For example, boron nitride or alumina, copper fluoride coating on the surface of a graphite conductor still have good electrical insulating properties in 400 ℃. Enamel on metal wires to 700℃, phosphate based inorganic binder coating to 1000℃, plasma spraying alumina coating to 1300℃, they still maintain good electrical insulation performance. High voltage insulation paint has been widely used in electric power, electric motor, electric apparatus, electronics, aviation, atomic energy, space technology and so on.

Ruisen as one of the most professional silicone coating suppliers, we provide composite polymer insulator, silicone composite insulators, coating silicone rubber and etc. Want to know more about ceramic paint insulation? Please contact us.

Zhangping Railway Power Supply Bureau 110kV Substation(2022年10月28日)

cnruisen — 2022-10-28T15:14:49+0900

https://www.cnruisen.com/zhangping-railway-power-supply-110kv-substation.html

Thickness Requirements for Zinc Rich Epoxy Primer(2022年08月24日)

cnruisen — 2022-08-24T12:25:13+0900

https://www.cnruisen.com/thickness-requirements-for-zinc-rich-epoxy-primer.html

Zinc rich epoxy primer has become the most commonly used anti-corrosion and anti-rust primer for steel equipment and facilities. However, many customers still have questions about how thick the zinc rich epoxy primer should be brushed or how many times it should spray. Ruisen is here to answer the question "How thick should the zinc rich epoxy primer be?" according to the coating engineering experience at home and abroad as well as the relevant standards.

What are the factors that affect the thickness of the zinc rich epoxy primer?
The epoxy coating thickness should be determined comprehensively in accordance with the service life of the anti-corrosion coating, the surface treatment of the steel, and the corrosion factors. According to the coating regulations in ISO12944-2007, the steel coated with zinc rich epoxy primer should have a surface treatment to reach the standard of Sa2.5 or St3 and the roughness of 50μm. (Grinding is required to increase roughness.)

When the zinc rich epoxy primer is used as an anticorrosive primer, the recommended dry film thickness is 60μm, which is most convenient for airless spraying. Brushing is generally only used for small area spraying. When air spraying is used, it can be sprayed twice.

The zinc rich epoxy primer is used as a shop primer. It is only used for temporary anti-corrosion coating of workpieces. If there is a need for welding, the recommended dry film thickness is 25 μm, which is applied by air spraying.

According to the practical engineering experience, the domestic zinc rich epoxy primer is generally low in zinc powder content, and the surface treatment requirements are not up to standard. It is recommended to increase the dry film thickness to 70-80 μm, especially for outdoor long-term steel structure corrosion protection and decoration engineering.

If you want to know more abourt is silicone an insulator, please contact us.

Ruisen is a united, friendly, mutually helps the cooperation team Ruisen employees show the Professional dedication: obey the rule, diligent, passion, active, perfect problem shooting, persistence, strive to self-realization. Ruisen employees are practically-minded, innovative, maintain the spirit of keeping pace with the times' individuals.

The Pilot Scale Production of Long-term Green Marine Anti fouling Coatings(2022年08月24日)

cnruisen — 2022-08-24T12:24:25+0900

https://www.cnruisen.com/the-pilot-scale-production-of--long-term-green-mar.html

Marine bio-fouling is one of the most important problems to be solved in marine development, which will not only increase the navigational resistance and fuel consumption of ships, but also cause serious bio-corrosion and shorten the service life of ships and marine equipment. Due to the lag of research, there is no environmental protection and long-term green anti fouling pilot scale coating research production technology in China. The market has been monopolized by international multinational companies for a long time, which is inconsistent with China's status as the world's largest shipbuilding country and restricts the implementation of China's marine strategy.

Based on the principle of self-polishing, the anti fouling resin with stable hydrolysis and excellent physical properties was synthesized through molecular design, which solved the problems of uncontrollable polishing rate and easy cracking of common anti-fouling coating. At the same time, a series of environmentally friendly anti-fouling coatings with excellent anti-fouling performance for different types of ships were manufactured by optimizing the environmentally friendly anti-fouling compound system and the formulation of the coatings, which guaranteed the anti fouling validity and effectiveness. This technology frees China from the control of foreign coatings companies on the anti fouling coating market and speeds up the realization of self-determination of long-term green anti fouling coatings in China.

We have types of spray on silicone rubber coating for sale, if you have needs, please contact us.

Since the establishment of the enterprise, Ruisen has many typical successful cases, and we also provide many years of service for the safe operation of the power system. We would like to share with you our success stories and help you improve the stability of power operation.

The Introduction of Silicone Umbrella Skirt(2022年08月24日)

cnruisen — 2022-08-24T12:23:49+0900

https://www.cnruisen.com/the-introduction-of-silicone-umbrella-skirt.html

1. The performance of silicone umbrella skirt

Silicone umbrella skirts are shaped by high temperature and high pressure. The first silicon creepage-increasing umbrella skirts successfully developed in China are divided into "creepage-increasing umbrella skirts for DC suspension porcelain (glass) insulators" and "column insulators creepage-increasing umbrella skirts". The following are collectively referred to as creepage-increasing skirts. Special adhesives (vulcanized fluorosilicone rubber in room temperature ) are sued to bond it with the top of the original porcelain and glass umbrella skirts to form a combined insulation. Adjust the number of bonding sheets appropriately to meet the suspension requirements of suspension insulator and high-voltage electrical equipment to increase the requirements for creepage distance.

Using this product can effectively increase the "pollution flashover" voltage in heavily polluted areas. It has excellent corrosion resistance, aging resistance and water repellency and self-cleaning function of silicone umbrella skirt, and it is light in weight and convenient for on-site construction.

2. Which areas silicone umbrella skirts can be applied to

DC or AC transformer and distribution equipment should be protected against rain and flash, especially for equipment with an umbrella pitch of less than 70mm. Silicone umbrella skirts should be used as much as possible. When the creepage distance of the power transmission and transformation equipment in operation in the dirty area no longer meets the operating requirements, the climbing umbrella skirt shall be adopted as a remedial measure to adjust the creepage. In severely polluted areas, and the transformer and distribution equipment with severely insufficient creepage distance can be equipped with the silicone umbrella skirt and anti-pollution flashover coating can be used to adjust the creepage distance.

We have types of rubber insulation spray for sale, if you have needs, please contact us.

Ruisen has full capacity to deal with customized orders as your requirement. Not only design, but also encoding.

The Effect Of Ceramic Insulator On Transmission Line(2022年08月24日)

cnruisen — 2022-08-24T12:23:16+0900

https://www.cnruisen.com/the-effect-of-ceramic-insulator-on-transmission-li.html

The effect of ceramic insulators on power lines. Butterfly type insulator and needle type insulator are mainly used in high and low voltage transmission lines, while suspension type insulator is used in high voltage transmission lines. Ceramic insulator is a special insulating control, which can play an important role in overhead transmission lines. Insulators often present certain appearance of faults in application. It often needs to adhere to the appearance of the clean and tidy porcelain. It must be in accordance with the methods and methods of its repair and repair, to ensure that the use of the great effect and value of porcelain bottles. The fault of ceramic insulators may also be caused by the fact that the dielectric balance in the air is destroyed inside the hollow barrel of insulator insulation of porcelain bottle after being disturbed by strong electric field, resulting in the breakdown of electric discharge. It is a phenomenon caused by manufacturer made the insulator hollow in the middle which affects the practical service life and value of porcelain insulator. But the space of the base is not treated as a vacuum state, making the remaining air form a conductive film in the apearance of hollow under the effect of strong electric field force, and by long-term ionization. That is, with the increase of running time and current of ionized carbon, it encounters strong lightning current and over voltage, which destroys the balance and eventually forms the breakdown and conduction of insulator. More knowledge at China glass insulator trading network.

If you want to know more about ceramic insulator uses, please contact us.

As a coating supplier china, we can offer types of related products for sale, if you have needs, please contact us.

Ruisen is a professional manufacturer of power insulation products, our products cover power transmission, distribution and daily life, such as, PRTV coating, RTV-II coating, insulation coating, insulation cover, insulation tapes, bus bar protect products and insulators.

The Difference Between Zinc Rich Epoxy Primer And Zinc Cold Epoxy Paint(2022年08月24日)

cnruisen — 2022-08-24T12:22:37+0900

https://www.cnruisen.com/the-difference-between-zinc-rich-epoxy-primer-and-.html

The Difference Between Epoxy and Enamel

The zinc rich primer paint and the zinc rich epoxy primer are two kinds of very different materials in terms of process, technology and economy.
Corrosion resistance performance test: The epoxy zinc primer paint is resistant to salt spray for 600 hours (HG/ 3668); while the zinc cold epoxy paint is resistant to salt spray for more than 3,000 hours.

1.Moisture and heat resistance: The zinc rich primer paint is generally resistant to moist and heat, and cannot be exposed to the outdoor environment in a single layer; while the cold spray zinc has excellent heat and moisture resistance.

2.Cathodic protection performance: The system of zinc rich primer paint is mainly based on barrier protection with cathodic protection and rapid corrosion at partial damage; while the system of zinc cold epoxy paint has good cathodic protection performance and can effectively avoid crevice corrosion and partial damage.

3.Maintenance cycle: The maintenance cycle of zinc rich primer paint system is about 5 to 7 years, and about 1 to 2 years for partial improper pretreatment or poor construction; while the maintenance cycle of zinc cold epoxy paint system has good cathodic protection ability for more than 15 years.

4.Difficulties of construction: The system of zinc rich primer paint is moderately difficult to construct and requires high of the pretreatment and construction environmental conditions. Otherwise, cracking and peeling are likely to occur; while the system of zinc cold epoxy paint is easy to construct, and it can be convenient to construct at the factory and on site. The requirements for construction are general.

5.Difficulties of maintenance: The system of zinc rich primer paint must be thoroughly polished to the body of steel, which is difficult to maintain; while the system of zinc cold epoxy paint has good repainting performance and low requirement of repainting pretreatment.

7. Lifetime cost: The system of zinc rich primer paint can be repainted and maintained for many times in the whole life cycle, and the direct and indirect loss is large with high cost; while the system of zinc cold epoxy paint has the advantages of long-term anti-corrosion, avoids multiple maintenance. It also has good corrosion adaptability and construction as well as easy maintenance and low lifetime cost.

As one of silicone coating suppliers, we have types of related products for sale, if you have needs, please contact us.

Fujian Ruisen provides customers with silicone anticorrosive coatings that have excellent performance in not only weather resistance, but also water and chemical resistances.

The Analysis and Comparison of RTV and PRTV(2022年08月24日)

cnruisen — 2022-08-24T12:21:47+0900

https://www.cnruisen.com/the-analysis-and-comparison-of-rtv-and-prtv.html

Room Temperature Vulcanized Coating Silicone Rubber is called RTV anti-pollution flashover coating in short, which is a new material used to improve the insulation level of electrical equipment and has emerged in recent years. It is a new technology and material with its outstanding features such as long-term effectiveness and maintenance-free that has been rapidly developed and widely used in China.

In China, RTV coatings have experienced a development process of multi-component, two-component, and one-component. Single-component coatings do not need to be blended when used. After the sealed package is opened, it can be directly sprayed and coated on the surface of the electric porcelain. After it is in contact with hydrone in air, it solidifies into a film, ensuring quality and reducing waste. With a simple construction, it is the most popular in field applications.

Initially, the service life of RTV coatings was five years. With the advancement of technology, product performance has been further improved, and the service life has also been increased to ten years, but this has reached the limit service life of RTV coatings.

RTV performance characteristics:

① Ensure the safe operation of power equipment.

② The coating is a one-component coating, and there is no need to blend during use. After the sealed package is opened, it can be directly sprayed and coated on the surface of the electric porcelain. After it is in contact with hydrone in air, it solidifies into a film, ensuring quality and reducing waste. With a simple construction, it is the most popular in field applications.

③ The coating has excellent electrical and mechanical properties, strong hydrophobic migration, strong adhesion and long service life.

④ The flammability index of the coating is not lower than FV-1 level. This indicator is especially suitable for the insulation and anti-pollution work of the DC transmission and transformation equipment of the power system.

⑤ The residue after the coating burns is not conductive, leaving no safety hazards to the operation of the equipment.

⑥ In the normal use of the equipment, the electrical external insulation equipment after spraying or applying RTV coating can be free of cleaning and maintenance, which saves a lot of manpower and material resources for cleaning external insulation equipment (generally tentatively ten years).

⑦ The coating is packed in iron drums (5Kg). One piece consists of 4 iron drums (20Kg) (carton packing).

In order to further increase the service life of RTV coatings, improve its comprehensive performance, and make it oil-repellent and self-cleaning, a new anti-pollution flashover coating - electric super long-lasting anti-pollution flashover coating (referred to as PRTV anti-pollution flashover coating) is launched.

PRTV coatings have better hydrophobicity and hydrophobic migration than RTV anti-pollution flashover coatings, as well as a certain degree of oleophobicity and good non-stick properties. Under severe weather conditions, a continuous water film will appear along the surface of wet and dirty insulators and flashover will occur. When the PRTV coating is applied, the surface of the dirt layer is also hydrophobic due to its hydrophobic migration. There are only discontinuous small water droplets on the surface of the dirt layer, and will not be infiltrated and connected, which makes the anti-pollution flashover performance of power equipment has been greatly improved.

Compared with the number of hydrophobic groups inside PRTV, the number of naturally lost hydrophobic groups is extremely small, so the effective service life of PRTV is very long. Compared with RTV coatings, PRTV coating base glue has a longer service life in nature. The modified negative molecular groups inside the PRTV after special technology treatment are far more abundant than those in RTV coatings, which is one of the reasons for its long service life. The PRTV power ultra-long-lasting anti-pollution flashover coating can be widely used in the external insulation and anti-pollution flashover of power transmission and transformation equipment.

Performance and use characteristics of RTV:

① Significantly increase the pollution flashover voltage of the external insulation of power transmission and transformation equipment, and the pollution flashover voltage can be increased to 200% to ensure the safe operation of power equipment.

② It can be sprayed directly on the surface of the electric porcelain when in use. After it is in contact with hydrone in air, it solidifies into a film, ensuring quality and reducing waste. With a simple construction, it is the most popular in field applications.

③ The coating material has hydrophobic and unique hydrophobic migration characteristics, that is, the hydrophobicity can migrate to the surface of the dirty layer, and it will not form a continuous water film on the surface of the coating in bad weather (rain, fog, drizzle).

④ In the normal use of the equipment, the external insulation of the power equipment can be free of cleaning and maintenance, which saves a lot of manpower and material resources for cleaning the external insulation (generally tentatively more than 20 years).

⑤ The surface of the coating is hydrophobic, so it can effectively prevent cement and chemical pollution from scaling on the surface, so this product can be widely used in various natural and industrial environments.

⑤ It has advantages of excellent insulation performance, excellent mechanical properties, strong adhesion, dust adhesion, corrosion resistance, long service life, corona resistance, aging resistance, and good anti-icing effect and excellent weather resistance.

⑦ The coating is non-flammable, and the burning grade after curing is FV-0. It is non-toxic and has a special smell.

⑧ The coating is packed in iron drums (5Kg). One piece consists of 4 iron drums (20Kg) (carton packing).

Ruisen has been manufacturing and supplying high quality and useful ceramic insulators such as station post insulator for substation, disc suspension insulator and line post insulator.

The Advantages of the Silicone Rain Booster Shed(2022年08月24日)

cnruisen — 2022-08-24T12:19:21+0900

https://www.cnruisen.com/the-advantages-of-the-silicone-rain-booster-shed.html

As the operating time of the power system increases, the pollution it receives will become more and more serious. In order to prevent the occurrence of dangerous accidents, it is very important to add rain booster sheds and anti-pollution coatings.

The main reason for the moisture resistance and dirt resistance of the composite insulator surface is that the surface of the silicone for shed is hydrophobic. The surface of the composite insulator will not form a continuous water film but water droplets under severe weather conditions such as light rain, melting snow, dew, melting ice, and heavy fog. Because the conductivity of the pollution layer is very low, the leakage current is also very small, and it is not easy to have a strong local arc, which is not easy to cause external insulation pollution. After a period of operation, the hydrophobicity of the composite insulator can be transferred to the surface of the contaminated layer after the surface is contaminated, which is unique to the rain booster shed. When the pollution degree is the same, the leakage distance of the pollution voltage is more than twice the leakage distance of the same insulator. So what are the advantages of rain booster sheds?

(1) The rain booster shed has excellent performance. It can resist electric shock, the corona has no electric corrosion, and has good hydrophobicity.

(2) The rain booster shed has a wide range of applicability, it is suitable for all kinds of porcelain used for power transmission and transformation equipment, such as anti-fouling pillars, porcelain bottles, casings, switches, common types, transformers, and so on; The position and shape of the rain booster shed can be set according to the degree of pollution, the nature of the pollution and the operating state of the equipment to ensure good results.

(3) When the rain booster shed is bonded to the porcelain petticoat, there should be no air gap, high bonding strength, no gap, reliable bonding interface, and the rain booster shed is a whole.

(4) The appearance of the rain booster shed is beautiful, and its structural design is reasonable.

(5)The rain booster shed is time-saving and labor-saving to use and easy to install.

If you want to know more types of china rubber coating, please contact us.

Introduction to the Construction of Suspension Insulators(2021年12月19日)

cnruisen — 2021-12-15T12:55:24+0900

https://www.cnruisen.com/product/hollow-bushing-insulator.html

Fujian RuiSen New Materials Co., Ltd. was established in 2007, located in Fujian Province, China. RuiSen is the largest manufacturer of RTV Silicone Coating (HVICs) in China, has many years' experience about R&D, manufacture management, and project management. We are the high-tech public company in China that specializes in Research and Development, Design, Manufacture, Sales and Project construction.

Ⅰ. Preparation before work of composite suspension insulator

1. Do a good job in site survey. On-site investigation is to understand and record the on-site environmental factors and dangerous points such as anti-shock and anti-falling before the operation, so that the records can be filled in with a target.

2. Make overall arrangements to declare the power outage plan. According to the operation, arrange multiple teams and units to control and declare the power outage plan to avoid repeated power outages.

3. Fill in the power distribution job ticket. The job ticket is the fundamental basis for on-site operations. It is filled in based on the site survey records and checked repeatedly.

4. Prepare relevant things and materials. Prepare the corresponding safe construction tools and materials before the operation, and check that they are qualified and complete to avoid affecting the construction progress and extending the power outage after the start of the work.

Ⅱ. In-operation control of porcelain suspension insulator

1. Regulate the operation and maintenance personnel to cut off the power supply. Relevant personnel shall transfer the equipment to the maintenance status according to the requirements of the site, and take the corresponding safety measures for power outages.

2. Arrange site safety measures. The operation director urges workers to take safety measures such as operation grounding, warning signs, and traffic command at the site. After the inspection is correct, the official preliminary operation instructions are issued.

3. Do a good job in safety supervision on the site. The operation director supervises the behavior of workers throughout the process and corrects unsafe behavior in a timely manner. When necessary, a dedicated guardian shall be appointed.

Ⅲ. Summary after work of suspension insulator

1. Check the quality before finishing the job. Before the completion of the operation, the operation director strictly inspects the site to ensure the construction quality.

2. After the completion of the project, organize the work site to ensure that no tools or materials are left behind, and all workers are evacuated. Besides, the completion report should be made.

Regardless of the construction of suspension insulators or other ceramic bushing insulators, relevant work must be done to ensure construction quality and safety, and prevent accidents.

Drones Can Give Insulators "Live Cleaning"(2021年12月18日)

cnruisen — 2021-12-15T12:54:54+0900

https://www.cnruisen.com/product/high-voltage-insulator-coating-series/

1. How to give high-voltage insulator a live cleaning?
In the power field, the live cleaning of high-voltage insulator has always been a big problem. In the past, manual cleaning or helicopter high-pressure water spray cleaning were generally used, which not only has high cost and low efficiency, but also has potential safety hazards. Recently, a new special drone for cleaning insulators has emerged, which can give the high-voltage insulators a live cleaning. Compared with traditional cleaning, drones are safer and more efficient, which has bright prospects.

2. The importance of live cleaning of high-voltage insulator
Insulator cleaning: high cost and risk
Insulators play the role of insulating and suspending wires in power supply lines. High voltage insulator is exposed all year round, and pollutants such as dust, oil, and charged particles in the environment are adsorbed as dirt under the action of electromagnetic fields and static electricity. In the rain, snow and haze weather, part of the salt deposits are dissolved and converted into a highly conductive water film solution, which greatly reduces the insulation performance of the insulators, causing pollution flashovers and power outages.

Therefore, the cleaning of dirty insulators is very important.

3. Live cleaning methods of high-voltage insulator
Because power outage cleaning will affect economic production, live cleaning is generally adopted as much as possible, which brings great challenges to the cleaning work.

Most of the high voltage insulators are located on high-rise towers, and it is extremely difficult to clean them, especially for high-tension towers in the field, which can only be cleaned by manual tower climbing or helicopter cleaning.

(1) Manual tower cleaning:
It is time-consuming and labor-intensive, and construction personnel are exposed to the risk of falling from high altitude and electric shock. Besides, the cleaning chemical reagents are harmful to the human body.

(2) Helicopter cleaning:
The helicopter takes the cleaning staff up high to clean the insulators directly. It has very high technical requirements for pilots, and the helicopter's rotors are also easy to hit the high-voltage line, which poses a great safety hazard.

The advancement of drone provides a new idea for the live cleaning of high voltage insulators. Multi-rotor drones are small in size, flexible in control, which are not limited by space. If used for insulator cleaning of high-voltage electrical towers, it has the advantages of high efficiency and safety compared to manual work and helicopters.

Comparison of Ceramic Electrical Insulators and Glass Electrical Insulators(2021年12月17日)

cnruisen — 2021-12-15T12:54:27+0900

https://www.cnruisen.com/product/insulator-electric-series/

The advantages and disadvantages of ceramic electrical insulators and glass electrical insulators can be introduced from the following six aspects:

1. Mechanical strength
Through the electromechanical function comparison test of these two kinds of insulators with different working years on the line, it is found that the test value of some ceramic electrical insulators after 15-20 years of operation has been lower than the factory test specification value, and its failure rate increased with the increase in working years. The stability and dispersion of glass is better than porcelain. The results of high-frequency oscillation fatigue tests on two kinds of insulators show that the electromechanical strength of glass electrical insulators decreases significantly after high-frequency oscillation.

2. Anti-aging function
Ceramic electrical insulators have a service life of nearly one hundred years, and their anti-aging ability is strong. Within a period of time after being put into operation, a small number of degraded insulators can be replaced by detection means. But with the increase of working hours, its aging will become more serious. The toughened surface of the glass constitutes a compressive stress. If there are micro-cracks on its surface, the solid stress effect will compress the micro-cracks without expanding. The electrical strength of glass generally remains unchanged during the entire working period, and its aging process is much slower than that of porcelain.

3. Electrical function
Under the effect of standard shock wave, the electrical breakdown strength of glass medium is 1350～1700 kV/cm, which is about 3.8 times that of porcelain. The shock wave with a steep wave head has been used for many tests at home and abroad. The results are atmospheric flashover, and the glass body is not broken down. Operating experience also proves that glass electrical insulators will not be broken down by lightning.

4. Voltage distribution
Due to the large dielectric constant of the glass, the glass electrical insulator has a larger main capacitance, and the voltage distribution in the string is more uniform. The voltage of the glass insulator string is lower than that of the porcelain, and then the radio disturbance and corona loss are reduced. Hence the service life of glass electrical insulators is extended and it also improves the flashover voltage of the insulators in series.

5. Scale and weight
Because the core rod has high tensile strength, the composite insulator can be made very light, which is only 1/10 of the weight of the porcelain insulator string. Since the dielectric constant of glass is 7-8, it is larger than the dielectric constant of porcelain(6-6.5). In the case of the same mechanical strength and breakdown voltage, its thickness is small, so glass electrical insulators are lighter than ceramic electrical insulators.

6. Later protection problem
The ceramic electrical insulator works reliably, but there are zero value detection problems and poor anti-fouling function. The glass electrical insulator has outstanding effect and convenient work protection.

What is the Principle of the Disc Insulator?(2021年12月16日)

cnruisen — 2021-12-15T12:53:59+0900

https://www.cnruisen.com/product/disc-suspension-insulator.html

Ⅰ. What is Disc insulator?

Ⅱ. Working principle of disc insulator

What are the Connection Ways of Disk Suspension Insulators?(2021年12月15日)

cnruisen — 2021-12-15T12:53:28+0900

https://www.cnruisen.com/product/disc-suspension-insulator.html

1. Brief introduction of disc suspension insulator
Disc suspension insulators are one of the insulators. They are commonly used in power systems. There are two main ways to connect them: ball and socket type connection and groove type connection. This article will introduce these two connection methods.

2. Two connection methods of disc suspension insulator
(1) The upper end of the iron cap of the ball and socket type connection is a bowl head (ball socket), and the lower end of the steel foot is a ball head. When the insulator and the insulator or between the insulator and the hardware are connected, the ball head is inserted into the ball socket and then inserted into the W-shaped or R-shaped steel pins to avoid falling. The ball and socket connection has no directionality, has a large winding degree and can be rolled, convenient for loading and unloading, which is conducive to live work. Generally, this connection structure of disc suspension insulator is used.

(2)The upper end of the grooved-shaped iron cap is a double-joint plate, and the lower end of the steel foot is a single-joint plate. The insulator and the insulator or between the insulator and the fittings are connected by cylindrical pins or bolts with split pin holes. The trough structure fittings are relatively simple, and are generally used on overhead ground wires and power distribution lines. In order to meet the needs of special circumstances, many manufacturers also produce a hybrid insulator, the upper end of the iron cap is a bowl head, and the lower end of the steel foot is a flange. In order to avoid corrosion of metal accessories, iron caps and steel feet are all hot-dip galvanized, and the R-shaped steel pins of heavy-duty insulators are made of stainless steel.

Introduction to the Advantages and Disadvantages of Glass Disc Insulator(2021年10月26日)

cnruisen — 2021-10-21T15:01:52+0900

https://www.cnruisen.com/product/disc-suspension-insulator.html

Glass disc insulators are frequently used insulator products in power systems. This article introduces the advantages and disadvantages of glass disc insulators.

Ⅰ. Advantages of glass disc insulator

1. Compared with ceramic materials, glass disc insulator has a high dielectric strength.

2. The resistivity of glass disc insulator is very high, and it has a low coefficient of thermal expansion.

3. Compared with porcelain insulators, it has higher tensile strength.

4. Because it is transparent, it will not be heated in the sun like porcelain.

5. Because of its transparency, impurities and bubbles can be easily detected in the glass disc insulator.

6. It has a very long service life, because the mechanical and electrical functions of the glass are not affected by aging.

7. Compared with insulators of other materials, the relative price of glass materials is more favorable.

Ⅱ. Disadvantages of glass disc insulator

1. Moisture is easy to condense on the glass surface, so air dust will be deposited on the wedge-shaped glass surface, which will provide a way for the leakage current of the system.

2. For higher voltages, glass cannot be cast into irregular shapes, because the irregular cooling causes internal cooling and internal strain.

Glass disc insulators have their unique characteristics and play a significant role in electric lighting systems. Fujian Ruisen New Materials Co., Ltd. produces and sells all kinds of insulators. If you have any needs, you can contact us for communication at any time.

Ruisen is a professional silicone coating suppliers, we provide composite polymer insulator, silicone composite insulators, silicone rubber insulators, rtv silicone coating and etc. Want to know more? Please contact us.

Zinc-rich Epoxy Primer Protects the Cathode(2021年10月25日)

cnruisen — 2021-10-21T15:01:16+0900

https://www.cnruisen.com/the-difference-between-zinc-rich-epoxy-primer-and-.html

1. The use of zinc-rich epoxy primer

Metals include ferrous metals (such as steel) and non-ferrous metals (such as aluminum alloys). In order to prevent rust, they must have surface treatment. There are many surface treatment methods, and cathodic protection surface treatment is a commonly used method. In the cathodic protection process, a zinc-rich epoxy primer is used.

Zinc powder is a chemically active raw material. The electrode potential of zinc is 0.7628V, and the electrode potential of iron is 0.409V. In the paint film, the zinc powder contacts each other and contacts with steel to conduct electricity. Therefore, when the steel structure coated with zinc-rich epoxy primer is corroded, because the electrode potential of metallic zinc is negative in a wide temperature range, zinc is the anode and is corroded, and iron has the cathodic protection and plays the cathodic protection of sacrificial anode. At the same time, the product of zinc powder corrosion can fill the pores of the coating film, seal the damaged part of the coating film, and play a role of shielding the corrosive medium. Therefore, although the coating of zinc-rich paint is relatively thin, it still has a good anti-rust effect and a long service life.

2. What is zinc-rich epoxy primer?

Organic resins, such as epoxy resin, chlorinated rubber, vinyl resin and polyurethane, are often used as the film-forming base of zinc-rich epoxy primer. As early as 1962, it was discovered that a zinc-rich epoxy primer formulated using a partial hydrolysate of alkoxysilane (such as ethyl orthosilicate) or a mixture of alkali metal silicate and zinc powder can provide a good effect on iron substrates. The cathodic protection performance is better than the organic resin-based zinc-rich epoxy primer. However, the disadvantage of this technology is the short shelf life of the paint and the short valid period during use. After 12 years, it was discovered that the stability and overall performance of the zinc-rich epoxy primer obtained by transesterifying silicate and organic polyols (such as ethylene glycol or glycerol) were greatly improved. This innovation was one of the most widely cited silicone inventions from 1964 to 1985. Because the zinc-rich epoxy primer introduces Si-O bond polymer, it has good corrosion resistance and adhesion, excellent weather resistance and heat resistance.

Ruisen is a professional silicone coating suppliers, we provide composite polymer insulator, silicone composite insulators, silicone rubber insulators and etc. Want to know more? Please contact us.

What is the Phenomenon that Composite Insulators Need to Be Replaced?(2021年10月24日)

cnruisen — 2021-10-21T15:00:47+0900

https://www.cnruisen.com/product/composite-insulator.html

Ⅰ. The introduction of station post insulator
Station post insulators are used for insulation and mechanical fixed connection between conductors and grounding bodies, such as post insulators for busbars or isolation switches. It is composed of solid porcelain columns and upper and lower metal accessories assembled by cement. The flashover distance of the post insulator along the external air is almost the same as the internal penetration path, so only the external flashover will occur, and the breakdown of the internal ceramic dielectric will not occur. It is a non-breakdown type. When the voltage level is higher, several post insulators can be connected in series. The post glass insulators will bear the action of bending moment and torque. In order to improve the mechanical strength, sometimes several sets of post insulators are connected in parallel.

In recent years, a composite station post insulator with a porcelain post as a core rod and a silicone rubber material as a sheath has been developed. The insulator uses a porcelain rod to withstand mechanical force, because cylindrical porcelain rods are easier to fire than those with umbrella groups. The strength is higher, and the pollution flashover resistance of the silicone rubber material is much higher than that of the porcelain material. Therefore, the electrical and mechanical properties of the insulator are better than those of the electric porcelain power station post insulator, and it has a broad development prospect.

Ⅱ. Phenomenon that composite insulator needs to be replaced

The composite insulator can indeed be replaced if one of the following situations occurs.

1. The umbrella cover is brittle and internalized, powdered or cracked.

2. Umbrella cover re-repair is prone to traces and corrosion due to leakage, and the cumulative length is greater than 10% of the insulator's creepage distance, or the corrosion depth is greater than 30% of the material thickness at the location.

3. The sealing failure of each link part of the composite insulator, cracks and slippage appear.

4.The insulator is burned by arc on the surface of the umbrella skirt after the flashover.

RTV Site Construction Process Management Should Be Strengthened(2021年10月23日)

cnruisen — 2021-10-21T14:59:57+0900

https://www.cnruisen.com/product/rtv-high-voltage-insulator-coating.html

The management of the application of anti-pollution flashover coatings should be strengthened to ensure that the application units and personnel have the corresponding work qualifications. In the application, the supervision and management of each link of construction, acceptance, and spot inspection should be strengthened. The application and acceptance of the anti-pollution flashover coating should be completed before the infrastructure project is put into production.

The porcelain (glass) insulators of newly built and expanded overhead transmission lines should be configured for external insulation according to the latest version of the pollution area distribution map. The porcelain (glass) insulators in the medium and heavy pollution areas should be sprayed with RTV anti-pollution flashover paint on the surface.

RTV coatings can become complete anti-pollution flashover products only after on-site construction. So far, the construction of RTV is still easy to become a weak link of the product, and even some manufacturers with better product quality have made mistakes in the construction in recent years. If conditions permit, priority should be given to the production method of coating RTV on the insulator before the equipment leaves the factory or the production method similar to that of coating RTV in a factory environment.

An effective way to ensure the thickness of RTV coatingon-site construction: the thickness of the coating can be guaranteed by different construction requirements. Generally, the average thickness of one spray is about 0.2mm. The thickness of the three sprays can be guaranteed to be about 0.5mm. Therefore, it can be required: spray more than two times; sampling thickness measurement with the upper surface of the insulator as the testing point, so as to ensure the beautiful color and the thickness of the film.

The construction process of layered spraying of paint with large color difference can be used to ensure the thickness of the RTV coating, prevent the occurrence of missing coating, improve the construction quality, and ensure that the service life of the coating is not affected by the thickness of the coating.

Therefore, in the process of infrastructure and equipment maintenance with loose time, it is recommended to use two-color cross spraying. White and red-brown paint can be used for cross spraying. It is required to spray more than two times. After each spraying, it must be fully cured (the curing time is based on this type of coating. The curing time in the test report shall prevail) to spray the second color of paint. The thickness of the paint is measured after each spraying. 3 to 5 samples of typical equipment can be used for measurement.

In the short-term equipment maintenance and spraying, single-color spraying can be used, but it must be sprayed multiple times, and each spraying must be at least surface dry. And do not spray too thick at one time (a spray too thick will cause the coating to accumulate, flow, and the paint surface is rough, etc.). After spraying, the thickness of all spraying equipment shall be inspected randomly.

Ruisen is a professional silicone coating suppliers, we provide composite polymer insulator, silicone composite insulators, silicone rubber insulators and etc. Want to know more? Please contact us.

What Are the Characteristics of PRTV Coatings Compared with RTV Coatings?(2021年10月22日)

cnruisen — 2021-10-21T14:59:29+0900

https://www.cnruisen.com/product/composite-insulator.html

1. High hydrophobicity

The hydrophobic angle of PRTV coating is generally greater than 90 degrees, while the hydrophobic angle of PRTV coating is greater than 100 degrees.

2. Corrosion resistance

PRTV coating has excellent chemical and electrochemical corrosion resistance, and is resistant to acids, alkalis, salts and most organics. It can adapt to a variety of harsh climatic environments and corrosive media environments.

3. Surface performance

It has excellent electrical insulation performance.

4. Non-stick performance

PRTV coating has anti-dust adhesion. Ordinary dust can be automatically washed away by rain, and local stubborn stains can be attached to it, and the surface can be restored by wiping with a cloth.

5. Physical and mechanical properties

The PRTV coating has excellent physical and mechanical properties: high adhesion, high hardness, high flexibility, high wear resistance and impact resistance, good adhesion and convenient construction. The perfectly combined surface of flexibility and hardness can withstand abrasion, collision and impact.

6. Heat and cold resistance

It can withstand the test of severe cold and heat. It can be used normally in the temperature range of -40℃-140℃, without peeling, wrinkling, or cracking.

7. Non-combustible, non-explosive and non-toxic

PRTV anti-pollution flashover coatings have been rapidly developed and widely used in recent years as a new technology and new material with their outstanding features such as long-lasting and maintenance-free, which contributed to the safe and stable operation of the power system.

Why Replace the Insulator?(2021年10月21日)

cnruisen — 2021-10-21T14:59:00+0900

https://www.cnruisen.com/product/composite-insulator.html

Replacing the original porcelain insulators or glass insulators with composite insulators is one of the important technical measures to prevent pollution flashover. Under the same creepage distance and pollution conditions, the anti-pollution flashover ability of composite insulators is significantly higher than that of porcelain insulators and glass insulators. The reasons are as follows.

(1) The surface of the silicone rubber umbrella skirt is a low-energy surface with good hydrophobicity and ability to migrate, making the dirt layer also hydrophobic. The water on the dirt layer surface appears in the form of small water droplets, which makes it difficult to form a continuous water film. Under the action of continuous voltage, it does not form a concentrated and strong arc like porcelain and glass insulators, and it is not easy to form a concentrated discharge channel on the surface, so it has a higher pollution flashover voltage.

(2) The diameter of the composite insulator is small, and the surface resistance is larger than that of porcelain and glass insulators under the same pollution conditions, and the pollution flashover voltage is correspondingly higher.

(3) Unlike the umbrella rib structure on the lower surface of porcelain and glass insulators, the structure and shape of the umbrella skirt of composite insulators is not conducive to the adsorption and accumulation of dirt, and does not require cleaning of dirt, which is beneficial to the operation and maintenance of the line.

In addition to excellent anti-pollution properties, composite insulators have high mechanical strength, small size, light weight, easy operation and maintenance, and high economy. The composite insulator is a non-breakdown structure, and there is no zero detection problem.

However, with the rapid increase in the amount of composite insulators used, the cases of flashover and damage are also increasing. The main causes of on-site damage of composite insulators include: mechanical damage, mainly including brittle fracture, typhoon and other factors causing the core rod to break. This type of accident has serious consequences and may lead to malignant accidents in the power grid; electrical damage to insulators, such as flashover and internal breakdown.

The damage of composite insulators mostly occurred in early products, mainly including improper material selection and immature technology. China's annual damage rate of composite insulators is about 0.005‰, which is better than the average level of other countries in the world. However, it needs to be pointed out that composite insulators will also have pollution flashover failures due to the following reasons: rapid or excessive dirt accumulation on the surface makes it difficult for the hydrophobicity to migrate; external factors such as climate and environment cause the insulator to weaken or temporarily lose the hydrophobicity; and the aging of silicone rubber materials will cause decline of hydrophobicity and pollution flashover performance.

Ruisen is a professional silicone coating suppliers, we provide composite polymer insulator, silicone composite insulators, silicone rubber insulators and etc. Want to know more? Please contact us.

Requirements for Spraying PRTV Anti-pollution Flashover Coating(2021年06月09日)

cnruisen — 2021-06-04T10:46:56+0900

https://www.cnruisen.com/product/k11-flexible-waterproof-coating.html

The spraying work of PRTV anti-pollution flashover coating should be carried out by a construction team with construction qualifications and mature construction experience. The main requirements for spray-on coating are as follows:

1. Appearance of PRTV anti-pollution flashover coating
The coating should be flat, smooth and free of bubbles.

2. Power frequency wet flashover voltage test of PRTV anti-pollution flashover coating
The power frequency wet flashover voltage of coated insulators should not be lower than that of uncoated insulators.

3. Pollution flashover resistance of PRTV anti-pollution flashover coating
At a salinity of 20 kg/m3 and above, the ratio of the pollution flashover voltage of the coated insulator under the same test conditions to that of the uncoated insulator shall not be less than 1.5.

4. Anti-aging performance of PRTV anti-pollution flashover coating
During the service life, the coating should not have crack, chalking, peeling and falling off under natural conditions, and can work reliably for a long time. The outdoor service life is generally not less than 5 years.

5. Curing time of PRTV anti-pollution flashover coating
a) Tack-free time
The surface drying time is not more than 45min (25℃±20C, 40%～70%RH).

b) Curing time (hard dry)
The curing time is not more than 72h (25℃±20C, 40%～70%RH).

The spraying work of the PRTV anti-pollution flashover coating should strictly follow the coating instructions. Before coating, the insulators should be cleaned, and moisture and oil stains should be wiped off. The construction should be carried out under weather conditions without rain, dew, and sand.

The metal parts at both ends of the equipment should be wrapped and protected during the construction of the PRTV anti-pollution flashover coating, and protection should be done during the spraying implementation, and the operation of adjacent equipment should not be affected. The implementation of the spraying of the PRTV anti-pollution flashover coating should be carried out after the completion of the insulation test of the electrical equipment, and the electrical equipment with unqualified insulation should be processed and replaced before the PRTV anti-pollution flashover coating is sprayed.

Ruisen is one of professional composite insulators manufacturers. We provide High Voltage Insulator Coating Series, Electric Cleaning Agent, rtv silicone coating, rtv high voltage insulator coating, flexible waterproof coating and so on. Want to know more? Please contact us.

Reasons for the Long Life of PRTV Anti-pollution Flashover Coating(2021年06月08日)

cnruisen — 2021-06-04T10:46:17+0900

https://www.cnruisen.com/product/high-voltage-insulator-coating-series/

At the beginning, the service life of RTV anti-pollution flashover coating was five years. With the advancement of technology, product performance has been further improved, and the service life has also increased to ten years, but this has reached the limit service life of RTV anti-pollution flashover coating. In order to further increase the service life of RTV anti-pollution flashover coatings and change its comprehensive performance to make it oil-repellent and self-cleaning, a new anti-pollution flashover coating called electric power anti-pollution flashover coating (referred to as PRTV anti-pollution flashover coating) appeared.

PRTV anti-pollution flashover coatings have better hydrophobicity and hydrophobic migration than RTV anti-pollution flashover coatings, as well as certain oil resistance and good non-stick properties. Under severe weather conditions, a continuous water film will appear along the surface of wet and dirty insulators and flashover will occur. When the PRTV anti-pollution flashover coating is applied, due to its hydrophobicity, the surface of the dirt layer is also hydrophobic. There are only discontinuous small water droplets on the surface of the dirt layer, and will not be infiltrated and connected, causing greatly improved anti-pollution flashover performance of the electrical equipment. Compared with the number of hydrophobic groups inside PRTV, the number of naturally lost hydrophobic groups is extremely small, so the life of PRTV is very long.

Compared with RTV anti-pollution flashover coatings, the base rubber of PRTV anti-pollution flashover coatings has a longer service life in nature. The modified negative molecular groups inside the PRTV after treatment with special technology are far more abundant than the RTV anti-pollution flashover coating, which is one of the reasons for its long service life.

The PRTV anti-pollution flashover paint sold by Fujian Ruisen New Materials Co., Ltd. has excellent anti-pollution flashover performance and has passed many tests. It is suitable for the anti-pollution flashover treatment of insulators in substations and transmission lines. Welcome to buy.

Ruisen is one of professional silicone coating suppliers. We provide High Voltage Insulator Coating Series, Electric Cleaning Agent, weld spatter resistant coating, glass disc insulator, High voltage insulator coatings and so on. Want to know more? Please contact us.

The Main Application of PRTV Anti-Pollution Flashover Coating(2021年06月07日)

cnruisen — 2021-06-04T10:45:39+0900

https://www.cnruisen.com/product/high-voltage-insulator-coating-series/

After the PRTV anti-pollution flashover coating is cured on the surface of the insulator, it becomes silicone rubber. The silicone resin contained in this layer of silicone rubber has strong water repellency, which can turn the water film into water droplets and compress pollutant particles into capsules to become water repellent, thereby inhibiting leakage and preventing the formation of conductive channels.

PRTV anti-pollution flashover coatings are mainly used for power system substations and transmission line insulators, power plants as well as power user substation equipment, and other electrical equipment external insulators. After the porcelain (or glass) insulator is sprayed with the PRTV anti-pollution flashover coating, the composite structure of the porcelain (or glass) skeleton is quickly formed to eliminate the pollution flashover accident of the power external insulation equipment. This can guarantee the normal operation of the grid for more than 10 years. In addition, it can be long-term maintenance-free and cleaning-free. It not only reduces the maintenance cost and indirect power loss for users in the later period, but also protects the safe operation of the power system!

The PRTV anti-pollution flashover coating of Fujian Ruisen New Materials Co., Ltd. has hydrophobicity after construction. This greatly increases the pollution flashover voltage of the external insulation of power transmission and transformation equipment. The pollution flashover voltage can be increased to 200%, which can ensure the safety of power equipment. When using our products, please open the sealed package first, and then spray directly on the surface of the electric porcelain. When it is in contact with air, it solidifies into a film, which not only guarantees quality, reduces waste, but also makes it more convenient to use during construction.

Ruisen is one of professional silicone coating suppliers. We provide High Voltage Insulator Coating Series, Electric Cleaning Agent, rtv silicone coating, electrical insulating paint, high voltage electrical insulators, high voltage insulation paint and so on. Want to know more? Please contact us.

Anti-Pollution Flashover Coating Can Effectively Improve the Efficiency of Cable Operation(2021年06月06日)

cnruisen — 2021-06-04T10:45:05+0900

https://www.cnruisen.com/product/epoxy-zinc-rich-primer.html

There is a direct proportional relationship between the development of cities and the development of cables. In every city, the use of cables is very large. In order to build a harmonious development-oriented city, the safe transmission of electric current by the cable is of great help.

The rapid development of industry has caused environmental pollution. And the cables that are often exposed to the space become the " victim". The long-term discharge of some industrial waste water and waste gas will form certain substances. If it interacts with the surface of the cable, the harm it plays is very huge. Choosing anti-pollution flashover paint can improve the effect of the cable.

So, what are the effects of this anti-pollution flashover coating?
1. It has good resistance to chemical reagents. This kind of coating will not appear discoloring in 25.3% of the chemical reagents, and its corrosion resistance is very strong. It is from such an advantage that it has become the main reason why many consumers choose anti-pollution flashover coatings.
2. It has good wear resistance. The wear resistance of this coating is quite good. It is because of such an advantage that the cable effect can be ensured. And this is also very important for users.
3. In addition to the above advantages, anti-pollution flashover coatings also have good oil resistance and good aging resistance. After using the anti-pollution flashover coating, you will find that the cable with such a coating film will not only continuously upgrade its benefits, but also allow us to enjoy the benefits of convenient electricity use.

Ruisen is one of professional silicone coating suppliers. We provide High Voltage Insulator Coating Series, Electric Cleaning Agent, polymer suspension insulators, composite silicone insulators, zinc primer paint and so on. Want to know more? Please contact us.

What are the Characteristics of Anti-Pollution Flashover Coatings?(2021年06月05日)

cnruisen — 2021-06-04T10:44:28+0900

https://www.cnruisen.com/product/composite-insulator.html

Anti-pollution flashover coating refers to the dirt attached to the insulating surface of electrical equipment. Under humid conditions, insoluble substances gradually dissolve in water, forming a conductive film on the insulating surface. This not only greatly reduces the insulation level of the insulator, but also prevents the strong discharge phenomenon under the action of the electric field force.

Its specific characteristics are as follows:

Ruisen is one of professional silicone coating suppliers. We provide High Voltage Insulator Coating Series, Electric Cleaning Agent, rtv silicone coating, anti algae paint, concrete waterproofing coatings, silicone composite insulators and so on. Want to know more? Please contact us.

Brief Introduction and Application of Anti-Pollution Flashover Coating(2021年06月04日)

cnruisen — 2021-06-04T10:43:54+0900

https://www.cnruisen.com/product/epoxy-zinc-rich-primer.html

Anti-pollution flashover coating is also called room temperature vulcanized silicone rubber, which is divided into RTV anti-pollution flashover coating and PRTV anti-pollution flashover coating. It is mainly used for the anti-pollution flashover work of power system insulators or external insulation of electrical equipment, in which the PRTV anti-pollution flashover coating is also called long-term anti-pollution flashover coating. The RTV anti-pollution flashover coating is a new material used to improve the insulation level of electrical equipment. As a new technology and new material, it has been rapidly developed and widely used internationally with its outstanding features such as long-term effectiveness and maintenance-free.

After the anti-pollution flashover coating is used on the insulator, the anti-pollution flashover coating composite porcelain (or glass) insulator is formed, which is to improve the external insulation configuration of power transmission and transformation equipment. It is suitable for the external insulation and anti-pollution of the AC and DC systems of various voltage levels and the ambient temperature of -50°C~100°C, and the operation of substations and overhead transmission line equipment under dirty conditions. And it can prevent flashover and improve the external insulation level of the equipment.

During the development of substations, pollution flashovers may occur in many insulation equipment. Strengthening the prevention of pollution flashover of insulation equipment in substations is an important part of the development of substations. The anti-pollution flashover coating can effectively hinder the contact between the insulating equipment and the dirt, which makes the insulating equipment more adaptable.

Fujian Ruisen New Materials Co., Ltd. has many years of rich and successful experience, and has a place in hundreds of large-scale projects from Asia to the United States. It is the world's most famous and most valuable supplier of anti-pollution flashover coatings. Everyone is welcome to purchase suitable anti-pollution flashover coatings.

Ruisen is one of professional silicone coating suppliers. We provide High Voltage Insulator Coating Series, Electric Cleaning Agent, algae resistant paint, porcelain suspension insulator, zinc rich primer paint and so on. Want to know more? Please contact us.

Introduction of Busbar Insulation Coating(2021年04月29日)

cnruisen — 2021-04-23T12:07:49+0900

https://www.cnruisen.com/introduction-of-busbar-insulation-coating.html

The busbar insulation coating is made of silicone - fluorinated rubber at room temperature. After chemical polymerization with fluorine-containing materials, adding flame retardant, arc resistance, reinforcement, active agent and other materials for physical mixing. It not only has good insulation performance, flame retardant and thermal conductivity, but also in the curing process, fluorine-containing monomer structural units migrates to the surface of the insulation layer, so that the surface of the insulation layer formed rich fluorine layer, so that the insulation layer has ultra-high ultraviolet resistance, high weather resistance, high durability, hydrophobic oil resistance and good aging performance.

The busbar insulation coating is made by polymer alloy technology. Its basic structural unit is composed of silicon oxygen link, and the side chain is connected with other organic groups through silicon atom. Therefore, its structure contains both organic group and inorganic structure. This special composition and molecular structure make it combine the characteristics of organic matter and the function of inorganic substance.

It is suitable for busbar, cable, wall bushing, high-power motor, dry-type reactor, dry-type transformer, switch cabinet and other equipment and components that need external insulation treatment, heat conduction, flame retardant and moisture-proof protection in high and low-voltage transmission and distribution system. It is especially suitable for electrical equipment working in dirty and humid environment. Moreover, it has the advantages of room temperature curing, in-situ molding, convenient use and direct spraying.

Ruisen is a professional silicone coating suppliers, we provide rtv silicone coating, anti algae coating, busbar insulation coating,weld spatter resistant coating and etc. Want to know more? Please contact us.

The Working Principle of Busbar Insulation Coating(2021年04月28日)

cnruisen — 2021-04-23T12:07:12+0900

https://www.cnruisen.com/the-working-principle-of-busbar-insulation-coating.html

The busbar insulation coating manufactured by Ruisen can be used to protect bare wire, busbar, cable, high-power generator, dry reactor, dry-type equipment and components that need insulation, heat conduction, flame retardant, moisture-proof and so on. It is very suitable for electrical equipment operating in polluted and humid environment.

Although it is not a new maintenance technique, busbar insulation coatings are coated with electric porcelain insulators to improve their pollution resistance. There may be many people who do not know the working principle. Here is to introduce the working principle of busbar insulation coating:

Power station or line is built in the area where the pollution continues to increase over time. For example, there are industrial areas and expressways under construction nearby. Such construction will significantly change the degree of pollution that has a negative impact on the line or power station. We must take measures, otherwise the risk of flashover will be increased.

A thin layer of busbar insulation coating is applied on the surface of electric porcelain and glass insulator, which makes the original hydrophilic surface hydrophobic and greatly improves its pollution resistance. In addition, because the low molecular chains in silicone rubber continue to migrate to the surface, even if the surface is covered by a pollution layer, the ceramic insulator still remains hydrophobic.

More and more power companies choose busbar insulation coating. Another reason behind it is that the busbar insulation coating has both the electrical properties of silicone rubber and the mechanical properties of ceramics.

Product Characteristics and Precautions of Busbar Insulation Coating(2021年04月27日)

cnruisen — 2021-04-23T12:06:24+0900

https://www.cnruisen.com/product-characteristics-and-precautions-of-busbar-insulation-coating.html

Product characteristics of busbar insulation coatings

1. The busbar insulation coating is made of special silicone rubber and other polymers with high performance.

2. Our silicone rubber insulation coating can protect the power system from explosion and other failures.

3. It is suitable for equipment or components that need insulation treatment, heat conduction, flame retardant and moisture-proof protection, such as bare wire, bare busbar, cable, wall bushing in high and low voltage substation and distribution system, high voltage motor, dry reactor, dry transformer and switch cabinet.

4. Busbar insulation coating is especially suitable for electrical equipment working in humid and dusty environment.

5. Excellent insulation performance: the breakdown field strength of the coating is more than 20kV / mm.

6. Non-flammable, self-extinguishing, flame retardant grade FV-0.

7. Excellent thermal conductivity: The thermal conductivity is 0.202w / (m). K) and it is 10 times of the air, so the heat of the equipment can be released in time to prevent the temperature from being too high.

8. High strength, strong adhesion and high corrosion resistance.

9. Ozone, ultraviolet ray and environmental anti-aging.

10. It is not easily decomposed by ozone and ultraviolet radiation.

11. The service life in natural environment is at least 20 years.

Precautions:

1. The packaging barrel should be closed immediately after being opened or used to avoid the paint from contacting with air for a long time, so as to prevent the coating from curing.

2. Construction should be carried out in good weather, prohibited in rain, fog, sand and other adverse meteorological conditions, to ensure the construction quality

3. The surface of porcelain insulator must be cleaned before coating to prevent grease, dust and moisture from remaining on the surface of porcelain insulator.

The Application of Silicone Anticorrosion Coating Changes the Whole Chemical Industry Pattern(2021年04月26日)

cnruisen — 2021-04-23T12:05:40+0900

https://www.cnruisen.com/the-application-of-silicone-anticorrosion-coating-changes-the-whole-chemical-industry-pattern.html

Organosilicon compound refers to the compound containing Si-O bond and at least one organic base is directly connected with silicon atom. It is also used to regard those compounds that connect organic base and silicon atom through oxygen, sulfur, nitrogen, etc. Among them, polysiloxanes with silicon oxygen bond (-Si-0-Si-) as the framework are the most numerous, the most deeply studied and the most widely used in organosilicon compounds, accounting for more than 90% of the total amount.

The basic structural unit of silicone anticorrosion coating is composed of silicon oxygen chain, and the side chain is connected with other organic groups through silicon atom. Therefore, the structure of silicone anticorrosive coating contains both organic group and inorganic structure. This special composition and molecular structure make it integrate the characteristics of organic matter and the function of inorganic substance.

The characteristics of silicone anti-corrosion coating are as follows:

Chemical characteristics: Acid and alkali resistance, salt spray resistance, solvent resistance, high and low temperature resistance, ultraviolet ray resistance.

Biological characteristics: It has antibacterial function and can effectively simulate the growth of algae, fungi and other plankton.

Application characteristics of silicone anti-corrosion coating are as follows:
a) Good antifouling property: It can resist all kinds of water-based and oil-based smears, including algae adhesion, which is easy to clean.

b) Good sealing: Seamless construction can greatly reduce water seepage loss and facilitate cleaning.

c) Good adhesion: It has good adhesion to metal, cement, ceramic tile, glass, wood, epoxy and acrylic based coatings, putty for internal and external walls.

d) The material has high strength, scratch resistance, washing resistance, heavy pressure resistance, and its surface is ceramic.

Ruisen is a professional silicone coating suppliers, we provide rtv silicone coating, anti algae coating, busbar insulation coating, weld spatter resistant coating and etc. Want to know more? Please contact us.

The Difference Between Zinc Rich Epoxy Primer And Zinc Cold Epoxy Paint(2021年04月25日)

cnruisen — 2021-04-23T12:05:02+0900

https://www.cnruisen.com/the-difference-between-zinc-rich-epoxy-primer-and-.html

The zinc rich epoxy paint and the zinc rich epoxy primer are two kinds of very different materials in terms of process, technology and economy.
1. Corrosion resistance performance test: The zinc rich primer paint is resistant to salt spray for 600 hours (HG/ 3668); while the zinc cold epoxy paint is resistant to salt spray for more than 3,000 hours.
2. Moisture and heat resistance: The zinc rich primer paint is generally resistant to moist and heat, and cannot be exposed to the outdoor environment in a single layer; while the cold spray zinc has excellent heat and moisture resistance.
3. Cathodic protection performance: The system of zinc rich primer paint is mainly based on barrier protection with cathodic protection and rapid corrosion at partial damage; while the system of zinc cold epoxy paint has good cathodic protection performance and can effectively avoid crevice corrosion and partial damage.
4. Maintenance cycle: The maintenance cycle of zinc rich primer paint system is about 5 to 7 years, and about 1 to 2 years for partial improper pretreatment or poor construction; while the maintenance cycle of zinc cold epoxy paint system has good cathodic protection ability for more than 15 years.
5. Difficulties of construction: The system of zinc rich primer paint is moderately difficult to construct and requires high of the pretreatment and construction environmental conditions. Otherwise, cracking and peeling are likely to occur; while the system of zinc cold epoxy paint is easy to construct, and it can be convenient to construct at the factory and on site. The requirements for construction are general.
6. Difficulties of maintenance: The system of zinc rich primer paint must be thoroughly polished to the body of steel, which is difficult to maintain; while the system of zinc cold epoxy paint has good repainting performance and low requirement of repainting pretreatment.
7. Lifetime cost: The system of zinc rich primer paint can be repainted and maintained for many times in the whole life cycle, and the direct and indirect loss is large with high cost; while the system of zinc cold epoxy paint has the advantages of long-term anti-corrosion, avoids multiple maintenance. It also has good corrosion adaptability and construction as well as easy maintenance and low lifetime cost.

Selection of Anti Weld Spatter Coating(2021年04月24日)

cnruisen — 2021-04-23T12:04:31+0900

https://www.cnruisen.com/selection-of-anti-weld-spatter-coating.html

The type of anti weld spatter coating used in welding of the structure parts of the processed coatings has little effect. Even if oil-based anti-spatter coating is used, it can be completely removed by the cleaning process before painting, and the quality of the spray paint will not be affected. If the coating is processed or not processed, the use of oil-based anti weld spatter coating will bring some problems. Direct shot blasting treatment of structural parts can remove surface rust. But it is difficult to remove oil-based anti weld spatter coating coated on the weld seam of the workpiece. It will adsorb on the surface of the pellet, which causes pollution on the surface of some workpieces with oil stain, seriously affecting the adhesion of the paint film. In order to prevent the influence of oil-based anti-splash coating on subsequent painting, it is necessary to increase the cleaning process and carry out the necessary cleaning of the workpiece. Increasing the cleaning will bring a series of problems, such as production area shortage, cost increase, sewage discharge and so on. Therefore, for the workpieces processed or unprocessed after painting, oil-free anti weld spatter coating should be selected during welding, and water-borne or powder anti weld spatter coating should be used.

Relevant Introduction of Hollow Core Insulators(2021年04月23日)

cnruisen — 2021-04-23T12:04:04+0900

https://www.cnruisen.com/relevant-introduction-of-hollow-core-insulators.html

Hollow insulator is a special insulating control, which can play an important role in overhead transmission lines.

Historical roots
In the early years, insulators were mostly used in poles, and gradually developed into high-voltage wire towers with a lot of disc-shaped insulators hanging at one end. It was designed to increase the creeping distance, usually made of glass or ceramics, called insulators.

Production method
The hollow core insulators are composed of insulating mandrel inner barrel, end flange and silicone rubber umbrella sleeve. The silicone rubber umbrella sleeve is connected by more than two silicone rubber umbrella sleeve segments. The adjacent two silicone rubber umbrella sleeve segments are connected by step lapping structure. The end of the umbrella sleeve section finished in the previous processing is a step-type front lap ring with outer diameter less than the outer diameter of the umbrella sleeve section. The front lap ring of the umbrella sleeve section is coated with adhesive. The front segment of the umbrella sleeve completed in the latter processing is the back lap ring with the inner diameter matching the lap ring. The front lap ring and the back lap ring are bonded by adhesive.

Design and Implementation
According to the technical requirements of 1 000 kV UHV transmission project in China, the product design and process implementation scheme of hollow core insulators for SF6 combined electrical appliances are determined. The feasibility of the design scheme, the reliability of technical quality and the guarantee measures are expounded. Finally, it is pointed out that under the correct design scheme and reliable process guarantee, the composite hollow sleeve produced should be able to meet the needs of UHV transmission projects in China.

Busbar junction box(2020年08月04日)

cnruisen — 2020-08-04T15:17:49+0900

https://www.cnruisen.com/product/slot-button-type-silicone-rubber-busbar-joint-box.html

Busbar junction box: also known as busbar protection box, insulating box, protective cover, busbar insulating cover, joint protective cover, etc1kV,10KV and 35kV different withstand voltage levels.

1.Application: Mainly used for insulation protection of busbar joint box at the connection of electrified body of electrical equipment conductor, as well as insulation protection of special parts such as high and low voltage switchgear, circuit breaker, busbar connection, transformer terminal, etc.

2. Product features sharp edges and corners, uniform wall thickness, accurate size, stable performance, smooth and meticulous appearance, long service life and other advantages, which can better show the grade of equipment, the overall effect is obvious.

3. Compared with the traditional busbar junction box, because the traditional one is made by the heat shrinking process, the raw material cannot be completely bonded with the mould when it is preheated and contracted, which is limited by the shrinkage ratio and its elastic strength. Therefore, the busbar box made by us is not good in appearance, rough in surface, not in place in molding, deformed and twisted when heated, inaccurate in size, uneven in thickness, and unstable in performance Short service life, poor quality, difficult to reach the insulation protection level, which will affect the overall aesthetic effect of the equipment and reduce busbar junction box .

Fujian RuiSen New Materials Co., Ltd. was established in 2007, located in Fujian Province, China. RuiSen is the largest silicone coating suppliers of RTV Silicon Coating (HVICs) in China, has many years' experience about R&D, manufacture management, and project management. We are the high-tech public company in China that specializes in Research and Development, Design, Manufacture, Sales and Project construction.

Research on the application of insulating coating(2020年08月04日)

cnruisen — 2020-08-04T15:17:21+0900

https://www.cnruisen.com/product/busbar-insulation-coating.html

It has been proved by practice that no matter using heat-shrinkable insulating sheath or adopting insulator scheme with large creepage distance, there are certain limitations for bus construction of Banshanpu traction substation after the merger. Due to the influence of early house civil construction, the space cannot be changed, so it is impossible to use insulator with large creepage distance; heat-shrinkable insulating sheath is also very difficult for long bus construction Uneven heating in the work is easy to lead to the rupture of heat-shrinkable insulating sheath, and the construction cost is also relatively high.

The silicone flame retardant heat conduction high voltage insulation coating can not only improve the insulation ability of the bus but also not reduce the current carrying capacity of the bus.

The test shows us busbar insulation coating has the following characteristics:

1. Busbar insulation coating with high voltage insulation and excellent performance, it can effectively eliminate the short circuit fault of small animals and personal injury accidents caused by live naked in substations.

2. The coating has excellent thermal conductivity, can release heat of equipment in time, prevent heat accumulation and high temperature, is non-flammable, has self-extinguishing property, and has remarkable flame retardant effective-0Class.

3. The coating has strong adhesion, can eliminate the gap between the coating and the equipment, form an integral part with the equipment, can effectively prevent the corrosion of acid, alkali, salt and atmosphere to the equipment, has the characteristics of moisture-proof, ozone resistance, radiation resistance, UV resistance, aging resistance, etc., and can realize maintenance-free long-term operation and long service life.

4.In situ forming, easy to use, short construction period

5.Non-toxic, pollution-free and corrosion-free.

Therefore, use the busbar insulation coating can not only improve the insulation level of the bus but also not affect the normal operation of the bus and the selection of insulator.

Fujian RuiSen New Materials Co., Ltd. was established in 2007, located in Fujian Province, China. RuiSen is the largest manufacturer of RTV Silicon Coating (HVICs) in China, has many years' experience about R&D, manufacture management, and project management. We are the high-tech public company in China that specializes in Research and Development, Design, Manufacture, Sales and Project construction.

Comprehensive understanding of 10kv ceramic insulator(2020年08月04日)

cnruisen — 2020-08-04T15:16:43+0900

https://www.cnruisen.com/product/hollow-bushing-insulator.html

1. Basic principle of the 10KV ceramic transformer insulator
10KV Ceramic transformer insulator's an overvoltage(Electric current) Protector is mainly used to protect all kinds of electrical equipment (transformer, switch, capacitor, wave arrester, transformer, generator, electric power, power cable, etc.) in power system, railway electrification system and communication system from atmospheric overvoltage, current operation overvoltage (current) and power frequency transient overvoltage (current), which is the basis of insulation coordination in power system.

10KV Ceramic transformer insulators core components adopt advanced formula of aviation standard, which has very excellent nonlinear (volt-ampere) characteristics, that is, under normal working voltage and current, the current passing through has microampere level, when suffering from over-voltage, the current passing through reaches thousands of amperes instantly, making the arrester in conduction state, releasing over-voltage energy, thus effectively limiting the over-voltage to Infringement of power transmission and transformation equipment.

Conventional 10KV Ceramic transformer insulator because of high discharge voltage and high dispersion of operation wave discharge, the discharge voltage of operation wave is high. 10KV Ceramic insulator has good response characteristics of steep wave, no delay to steep wave voltage and current, low residual operation voltage, no discharge dispersion and other advantages, which greatly improves the protection margin under steep wave and operation wave, and in insulation coordination, it can make the protection margin of steep wave, lightning wave and operation wave close together, so as to provide the best protection for power equipment.

10KV Ceramic transformer insulator has good sealing performance, excellent explosion-proof, dirt free and no washing. It can reduce temperature flash in fog. It is resistant to electric erosion, anti-ageing, small size and lightweight. It is easy to install and maintain. Twenty New generation products of the century.

2. Product characteristics of a 10KV ceramic transformer insulator
small size, lightweight, collision resistance, transportation without collision damage, flexible installation, suitable for use in the switchgear;
special structure, overall moulding, no gap, good sealing, moisture-proof and explosion-proof;
large creepage distance, good hydrophobicity, strong pollution resistance, stable performance, reduced operation and maintenance;
The unique formulation of aviation technology standard, small leakage current, slow ageing speed, long service life;
The actual DC reference voltage, square wave through current capacity and high current withstand capacity are all higher than the national standards.

Features of anti-fouling coating(2020年08月04日)

cnruisen — 2020-08-04T15:16:19+0900

https://www.cnruisen.com/product/anti-algae-anti-fouling-coating.html

There are many kinds of creatures and endless species in the vast ocean. There are many kinds of marine creatures. No matter animals or plants, they will actively adhere to the underwater shell of the ship. It not only increases the weight of the ship, but also significantly increases the surface roughness of the bottom of the ship, which increases the forward friction resistance of the ship, and thus reducing the speed of navigation. In other words, if we want to maintain the normal speed, we have to increase the fuel consumption of the ship. The volume of solids of new products of Fujian Ruisen New Materials Co., Ltd. is higher, which means that the number of matching coatings can be reduced, while also reducing over spray and VOC emissions. The upgraded product portfolio is highly cost-effective and has advantages of outstanding environmental protection and performance. Thus, it will help shipowners, operators and shipyards cope with the challenges posed by fuel floats and increasing environmental pressures.

Main characteristics of Anti-Algae & Anti-Fouling Coating
1. In a certain period of time, it can prevent the attachment of marine fouling organisms;

2. The toxic material in the paint film seeps steadily into the sea water;

3. The paint film is of certain water permeability to ensure the continuous leakage of toxicity;

4. It has good adhesion and matching performance with antirust paint. Antifouling paint should also have good interlayer adhesion and it should be slightly soluble with antirust paint.

5. The paint film shall have good resistance to the impact of seawater, and there should be no bubble or falling off when it is immersed in water for a long time;

6. In the course of navigation, there are different degrees of self polishing ability;

7. It has good storage stability, and its antifouling performance is not decreased during storage.

Development prospect
The development of environment-friendlyAnti-Algae & Anti-Fouling Coatingis the development direction of marine antifouling coatings. A kind ofAnti-Algae & Anti-Fouling Coatingwith excellent performance should have the following advantages: good antifouling effect, long effective antifouling period, economical and little impact on the environment. With the research of new antifouling coatings and the development of supporting technology, the practical application of these environmentally friendly antifouling coatings will gradually expand.

Characteristics and precautions of-electric cleaning agent(2020年08月04日)

cnruisen — 2020-08-04T15:15:50+0900

https://www.cnruisen.com/product/electric-cleaning-agent/

Environmental friendly cleaning agent for electrical equipment, is also known as Electrical Equipment Cleaning Agent. It is suitable for the cleaning of motor, electric generator, stator, rotor, terminal block, transformer equipment, distribution room equipment, large-scale electromagnetic valve, automatic control switch, electric welding machine and all kinds of electrical equipment.

Electrical Equipment Cleaning Agent is a safe and economic cleaning agent for electrical equipment. It has excellent oil cleaning ability. It can directly clean the oil, carbon powder and dust of the rotor, stator, air hole, cable connector and distribution switch contact of the motor at the working site. This product is a new generation of solvent-based non ODS Electrical Equipment Cleaning Agent with no irritating smell and no toxicity to health. It has the characteristics of low surface tension, low viscosity, excellent permeability, and can effectively clean electrical equipment of various materials. It has special natural dryness, and is very suitable for on-site cleaning of thermal power and hydropower during maintenance.

Features of electric cleaning agent
1. It has strong cleaning ability, which can quickly penetrate, dissolve and strip oil stains with good cleaning effect.

2. The performance index is better than that of common DQ-25.

3. It can volatilize completely without residue and condensation.

4. It is safe to use and harmless to metal, most coating, insulation coating, resistant rubber and plastic.

Matters needing attention
1. For abnormal hot parts and serious dirt parts, it is not suitable to clean with electricity.

2. It is not suitable for plastic parts or precision instruments that are not solvent resistant.

3. The use environment shall be well ventilated and away from fire sources.