NFPA 70A National Electrical Code® Requirements for One- and Two-Family Dwellings
NFPA 70a 美国电气规范：单户和双户居室要求
Covers electric conductors and equipment installed within or on public and private buildings or other structures, including mobile homes and recreational vehicles and other premises such as yards, carnivals, parks and other lots and industrial substations; conductors that connect the installations to a supply of electricity; and other outside conductors on the premises.
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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
· Services
· Overcurrent protection
· Grounding
· Surge arresters
· Wiring methods
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