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What is A Class 1 Div 2 Area?

Class 1 Div 2 Definition

In Simple Word
Class 1 Div 2 location, C1D2 for short, class 1 division 2 led lighting for full name, means ignitable concentrations of hazards, such as flammable vapors and gases, exists under abnormal operation conditions.

In Quantitative Measurement
Class i division 2 lighting location means ignitable concentrations of hazards, such as flammable vapors and gases, present from 1 hour to 10 hours every year.

Class 1 Division 2 Electrical Requirements
In Accordance with NEC Article 500

A Class 1, Division 2 location is a location:

In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or

In which ignitible concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation and which might become hazardous through failure or abnormal operation of the ventilating equipment, or

That is adjacent to a Class 1, Division 1 location, and to which ignitible concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors above their flash points might occasionally be communicated unless such communication is prevented by adequate positive-pressure ventilation from a source of clean air and effective safeguards against ventilation failure are provided.

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