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发表于 2012-7-18 21:37:25
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显示全部楼层
cq肯定搞错题了。
NEC布线规则。
(2) Fixture Wire. Fixture wire shall be permitted to be
tapped to the branch-circuit conductor of a branch circuit in
accordance with the following:
(1) 20-ampere circuits — 18 AWG, up to 15 m (50 ft) of
run length
(2) 20-ampere circuits — 16 AWG, up to 30 m (100 ft) of
run length
(3) 20-ampere circuits — 14 AWG and larger
(4) 30-ampere circuits — 14 AWG and larger
(5) 40-ampere circuits — 12 AWG and larger
(6) 50-ampere circuits — 12 AWG and larger
(3) Extension Cord Sets. Flexible cord used in listed
14 AWG 合3.2平方毫米 |
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