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发表于 2014-4-24 10:25
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本帖最后由 hgf397556998 于 2014-4-24 10:49 编辑 ( }+ v2 b# j7 c; P* k. Z
losiondy 发表于 2014-4-3 17:53 
6 k9 E2 m2 T& F1 h4 u40A是加拿大标准提到的：该章测试需要参考另外一个标准CSA C22.2 No 0.4.
标准CSA C22.2 No 0.4中，
/ X& Y4 h' m) R5 E" F) V6 a6 v4.1.2 Procedure
+ k+ F1 Q3 u) H4.1.2.1$ y# o2 p S0 T0 U
The impedance test shall be conducted by passing a 60 Hz current from a part to be bonded to the
j( s4 h7 k% e: Rbonding terminal means and measuring the potential drop between them at the end of the period. The4 L. f3 i/ T, z0 P4 b& `3 p
current shall be as specified in Clause 4.1.2.2 and of the applicable duration specified in Table 4.0 }* \) I+ ~& M* p, F
Table 4$ B% ], O2 U$ ?' Q; a9 s' _+ Z" a
Duration of impedance test current
& P5 j( {8 f2 f(See Clause 4.1.2.1.)
# d ^6 F/ G! a$ G5 ^3 F+ q) [Fusing of branch circuit required for equipment, A Time, min
. }! B8 z6 T6 |0-30 2
/ _+ o* W# `; L& y- U31-60 4 [; V( t/ I% |/ V, t
61-100 6
1 ~8 G8 n J) k- b0 N w, z101-200 8
( |# l6 p' S1 S, `9 E201 and over 108 e. @% K; f {
这里所提到的阻抗是指接地电阻么？ |
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