NFPA 496 电气设备的气体保护标准
日期:2012-02-09 16:42
cludes chapters covering protection of analyzers and rooms housing analyzers as well as a chapter on pressurized control rooms.
Consistent with the 2008 NEC, the 2008 NFPA 496 includes the following updates to help control fire hazards
A new requirement to mark purged and pressurized enclosures with an asphyxiation hazard warning where the protective gas is other than air
Correlation with the NEC requirements on equipment temperature ratings
(Softbound, 22 pp., 2008)
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