Historical
IEC 60079-7 Ed. 3.0 b:2001
Electrical apparatus for explosive gas atmospheres - Part 7: Increased safety "e"
Gives requirements for the design, construction, testing and marking of electrical apparatus, with a rated value of supply voltage not exceeding 11 kV r.m.s. a.c. or d.c., with type of protection 'e' that does not produce sparks, arcs, or dangerous temperatures in normal operation.
Content Provider
International Electrotechnical Commission [iec]