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tianchi0305 + V. P/ _+ j' y4 |' g8 j5 i
你好,
* ~% T% q: X+ E! C5 a9 {你的意思是到底需要接地还是不需要?...
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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),
- O0 t5 a: E4 L' u5 K* O% S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.- R1 |) U/ k. O5 | m
6 a/ J6 u7 x% P/ o& s; c; e5.21 Grounding and bonding
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, s5 m, {; k. A, k3 }& `5.21.1 Commercial equipment shall be grounded, except equipment that " z: X, I( `/ [9 |. C$ P m1 T$ |
(a)does not have “exposed”* conductive parts that can become energized; and
8 M, a" Z9 `7 l% I. o V4 g0 [(b)complies with the requirements of Clause8.5./ V1 S! c2 r5 H0 A2 u9 ?8 R( @' k
*”Exposed” is determined by the requirements of Clause5.3 |
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