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楼主 |
发表于 2013-8-7 12:23
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依然 发表于 2013-8-7 11:30 
+ Y9 L ~" \8 Y: d- Y0 [( N首先under cabinet是属于69 Under-Shelf Mounted Units:
8 _/ M- L+ l o& `2 M/ h$ G. ]69.1.1 These requirements apply to portab ... 6 T, |, m I. \$ g, `8 }; K' R
68.3.3 A wall mounted unit that has accessible metal parts shall be provided with a grounding attachment& E1 B' \, t( P* a0 ?, V
plug and comply with the requirements in Grounding and Bonding, Section 36.
2 W# f, {% P; iException No. 1: A wall-mounted unit supplied by a Class 2 circuit need not be grounded.
* X, M8 L2 F& l3 Y1 F; b4 \$ H
" g b2 {0 }- g这种情况是不是使用class 2电源就不需要接地了呢? |
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