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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 2 f5 f$ T) C) Y/ l% V
losiondy 发表于 2014-4-3 17:53 
7 z' u( V! X( h' n- t3 k* b40A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.
: p0 p. I3 R2 s! G' S# ^9 m* j标准CSA C22.2 No 0.4中，+ H5 W* p6 N* k6 r9 z
4.1.2 Procedure, b# R& \! u+ R$ e( g" O$ d
4.1.2.14 _$ K) {/ J5 W2 b
The impedance test shall be conducted by passing a 60 Hz current from a part to be bonded to the
/ V$ i: z" |2 e2 |# ebonding terminal means and measuring the potential drop between them at the end of the period. The
- K7 ?. q! }! H. jcurrent shall be as specified in Clause 4.1.2.2 and of the applicable duration specified in Table 4.
& w' Q, G/ f! w: C' GTable 4$ n. ~, [' |; t5 I d0 }) O
Duration of impedance test current7 V$ X; [. m( q: V% q9 r4 Y9 q
(See Clause 4.1.2.1.)
2 R3 q: E. z& d; }6 L" O8 ^& uFusing of branch circuit required for equipment, A Time, min
6 L! o9 b3 z9 N7 ?. \& N0-30 2
9 W2 W3 L g/ G, T31-60 46 d/ m2 l r+ ]* E
61-100 6
4 m( e% d. c L* F, e6 Y101-200 8
5 P3 Y" X; c+ W8 ~: |201 and over 10
5 Q, X- }6 u# w这里所提到的阻抗是指接地电阻么？ |
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