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ANSI/ISA-S12.16.01-1998 (IEC 79-7 Mod):Electrical Apparatus For Use In Class I

This standard prescribes the specific requirements for the design, construction, testing, and marking of electrical apparatus with type of protection e for use in class I, zone 1, groups IIA, IIB, and IIC hazardous (classified) locations with a rated value of supply voltage not exceeding 11 kv that does not produce arcs, sparks, or dangerous temperatures in normal operation or under specified abnormal conditions.

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