W/D S/S BY ISA 12.04.04
This recommended practice applies to equipment made suitable foruse in hazardous (classified) locations by the use of apressurizing system.
This recommended practice applies both to equipment with andwithout an internal release of a flammable gas or vapor.
This recommended practice does not apply to occupied portions ofbuildings such as ventilated or pressurized control rooms.
Purpose
This recommended practice provides guidance to those who designand install pressurized systems for hazardous (classified)locations, and should be used in conjunction with ANSI/NFPA 496,Purged and Pressurized Enclosures for Electrical Equipment.
This recommended practice provides performance and testrecommendations so that the enclosure and components mountedinternally or protruding through the enclosure are unlikely tocause ignition of a surrounding flammable atmosphere.
This recommended practice provides performance and testrecommendations so that users are unlikely to be injured by ruptureof the enclosure due to failure of the pressure-regulating devicesin the PROTECTIVE GAS SUPPLY.
- Edition:
- 96
- Published:
- 01/01/1996
- Number of Pages:
- 28
- File Size:
- 1 file , 260 KB
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