NFPA 262 电线电缆的火灾和烟气特性试验方法
日期:2012-02-10 14:42
NFPA 262 Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces
NFPA 262 电线电缆的火灾和烟气特性试验方法
1.1 Scope.
1.1.1* This standard shall prescribe the methodology to measure flame travel distance and optical density of smoke for insulated, jacketed, or both, electrical wires and cables and optical fiber cables that are to be installed in plenums and other spaces used to transport environmental air without being enclosed in raceways.
1.1.2 T
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