|
tianchi0305
- x! b+ V, O6 {你好,
! ]( c& V2 o0 [你的意思是到底需要接地还是不需要?...
5 c/ |/ F$ [. ~1 R3 j$ R0 M. U+ ~+ D' Z- M
从标准CSA 36上看, 至少有两条路, 要么接地, 要么走下面的试验与结构判断那条路(可以不接地),
% v1 G6 g |6 c& V9 J9 ^2 V结构的判定重点集中在exposed的判定(依据5.3条款), 而试验则需要在集中在泄漏测量与非正常试验.+ `6 e2 I7 Y# A7 e1 f7 ]
+ t# ~' R0 r; G% H6 m4 D
5.21 Grounding and bonding) m& ?) d0 M/ B
# W9 G+ p& I7 C- @# t* y$ `
5.21.1 Commercial equipment shall be grounded, except equipment that . `* L E, ?/ L, ] E$ z
(a)does not have “exposed”* conductive parts that can become energized; and / J1 c& a g$ u9 g# Z+ d& p* C
(b)complies with the requirements of Clause8.5.: @) \2 V- ?- k4 S: k' F
*”Exposed” is determined by the requirements of Clause5.3 |
|