NFPA 70a 美国电气规范：单户和双户居室要求
日期:2012-02-08 16:46
convenient access to the latest NEC facts for residential projects!
Created for electrical installers, contractors, and electricians who specialize in residential wiring, this document presents dwelling unit rules excerpted from the 2005 National Electrical Code.
Organized just like the NEC, NFPA 70A contains only rules for residential projects and covers single- and two-family dwellings of any kind, including mobile homes.
Topics include
Grounded conductors
Branch circuits
Feeders
Serv
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