|
|

楼主 |
发表于 2013-8-7 12:23
|
显示全部楼层
依然 发表于 2013-8-7 11:30 9 ]3 W x5 N7 P
首先under cabinet是属于69 Under-Shelf Mounted Units:
9 m, Z1 k# |2 Y! C69.1.1 These requirements apply to portab ...
* v/ ?) O; d4 J; T0 q68.3.3 A wall mounted unit that has accessible metal parts shall be provided with a grounding attachment: x: T0 y: e2 I. Y: ?* t# W V, \8 Z8 Q
plug and comply with the requirements in Grounding and Bonding, Section 36.
: D9 K2 j5 Z$ g7 LException No. 1: A wall-mounted unit supplied by a Class 2 circuit need not be grounded.- s0 y U; E& M" L0 E
7 _/ h+ y) [. Z4 K- ]3 a2 D, ], p, W
这种情况是不是使用class 2电源就不需要接地了呢? |
|