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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 & x* p- @- s( x7 e7 ~
losiondy 发表于 2014-4-3 17:53  j0 d% t+ U5 v+ P0 b, f$ A
40A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，: a& ^6 Y8 I+ J1 X; o+ ^0 g: Q7 d
4.1.2 Procedure
6 [& t4 s( u c' j$ Z% O3 |4.1.2.1
$ o& I2 `/ x% \- o/ [& O5 k( Z# d4 JThe impedance test shall be conducted by passing a 60 Hz current from a part to be bonded to the
( h$ j% G3 ~. ~1 vbonding terminal means and measuring the potential drop between them at the end of the period. The
! x+ e1 G* P+ I9 Scurrent shall be as specified in Clause 4.1.2.2 and of the applicable duration specified in Table 4.
8 s# T S6 S0 \% y: K! r5 a- dTable 43 V0 B4 O/ s$ O
Duration of impedance test current0 d$ z1 ?& h, L( c* ?
(See Clause 4.1.2.1.)# K9 y+ P- N" o! L) G
Fusing of branch circuit required for equipment, A Time, min3 j. W4 q/ q6 R' P
0-30 2
3 [- D1 ]! a+ ~* K% k31-60 4
# Z7 C3 L2 K/ j, B. V1 r+ h) h61-100 6
6 _) S/ M$ k8 U6 r B. f/ U- J! z101-200 8
c0 v ~7 |: T201 and over 102 Z/ c" M2 L4 R
这里所提到的阻抗是指接地电阻么？ |
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发表于 2014-4-3 11:19
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