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ISA 12.16.01

2002 Edition, December 2, 2002

Complete Document

Electrical Apparatus for Use in Class I, Zone 1 Hazardous (Classified) Locations: Type of Protection – Increased Safety "e"



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Superseded By: ISA 60079-7

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W/D S/S BY ISA 60079-7
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Description / Abstract:

This part of ANSI/ISA-12.16.01-2002 (IEC 60079-7 Mod) specifies the requirements for the design, construction, testing and marking of electrical apparatus with type of protection increased safety "e" intended for use in Class I, Zone 1, Groups IIA, IIB, and IIC hazardous (classified) locations. This standard applies to electrical apparatus with a rated value of supply voltage not exceeding 11 kV r.m.s. a.c. or d.c. Additional measures are applied to ensure that the apparatus does not produce arcs, sparks, or excessive temperatures in normal operation or under specified abnormal conditions.

These specific requirements are additional to the general requirements in ANSI/ISA-12.00.01-2002 (IEC 60079-0 Mod) that apply to type of protection increased safety "e" unless specifically excluded.