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tianchi0305 6 ~, e- M$ h9 ^* e1 e
你好,
4 k0 n! J: n5 p5 k你的意思是到底需要接地还是不需要?...6 \0 y6 w' ~! Y8 H5 ^4 a0 y
4 A/ t1 e3 \6 z' l% [+ A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),
) i. [, r6 s7 x: E& H3 m5 T% a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.' L# ~' d% {1 H7 v
: N0 s3 G7 M+ }' `: P/ o |" t5.21 Grounding and bonding7 f; ]1 N0 B. m0 C s* E
+ d6 t n* Q' ]/ I( ~ }! h9 A$ Z5.21.1 Commercial equipment shall be grounded, except equipment that : H# |' y f2 F( t
(a)does not have “exposed”* conductive parts that can become energized; and 4 _1 V) S" }0 O+ ]/ d
(b)complies with the requirements of Clause8.5.
3 {7 f' F5 L4 _: r& M*”Exposed” is determined by the requirements of Clause5.3 |
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