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tianchi0305
, D% a" k6 o- O$ C你好,0 W1 i; l% D- R4 c# o
你的意思是到底需要接地还是不需要?...5 ?0 n5 r8 k" o6 c
; b6 x' @' m, e6 ~: T, Z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),4 e: E4 {" R4 l; H3 d: ]
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./ Y" }& R j/ y) p0 v
9 w4 \( g: v! y, ^+ X5.21 Grounding and bonding: y* O6 q7 J% @2 N8 m/ v
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5.21.1 Commercial equipment shall be grounded, except equipment that 3 ]7 t9 N: ]- Z% J
(a)does not have “exposed”* conductive parts that can become energized; and 5 U' B- [: H# u2 F
(b)complies with the requirements of Clause8.5.# ^, }) y# H) i0 h0 {
*”Exposed” is determined by the requirements of Clause5.3 |
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