NFPA 496 电气设备的气体保护标准
日期:2012-02-09 16:42
y following the protection techniques outlined in the 2008 NFPA 496.
NFPA 496 Purged and Pressurized Enclosures for Electrical Equipment contains requirements for the design and operation of purged and pressurized electrical equipment enclosures. This protection technique is used in Class I and Class II hazardous (classified) locations to reduce or prevent the presence of flammable materials within electrical equipment enclosures as specified by NFPA 70 National Electrical Code. NFPA 496 also in
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09/09 02:41