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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
- O* ?3 ]2 W/ M) H0 @losiondy 发表于 2014-4-3 17:53  ' m7 o; k$ i4 x$ [4 U+ n" m* w1 D
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.
h/ ~4 @8 |( g; s* I0 j7 |+ ~% [标准CSA C22.2 No 0.4中，
' Q( P; p* x4 B1 Z% n4.1.2 Procedure' C% M' z3 t7 \' H4 z* k
4.1.2.1
* ^' ]) h) k: s, u* i& f0 J; GThe impedance test shall be conducted by passing a 60 Hz current from a part to be bonded to the' `0 Q: Q5 X5 [6 k
bonding terminal means and measuring the potential drop between them at the end of the period. The
* ^8 z9 w i9 ]6 Z8 l6 R, ?2 Acurrent shall be as specified in Clause 4.1.2.2 and of the applicable duration specified in Table 4.
8 |2 t& L/ E2 l' ]7 B) iTable 4* z! s3 I" D5 o$ F" B
Duration of impedance test current& F1 M- l+ s+ r K: r( Y: e2 ~- z
(See Clause 4.1.2.1.)
1 R+ Z7 u7 y% S4 y7 G4 ]Fusing of branch circuit required for equipment, A Time, min& D8 v J4 ]& p2 k* p
0-30 28 N! h/ ~1 ?/ t: |
31-60 4, ]0 o- g1 f% O& [7 U1 x
61-100 6( S2 `1 b0 p; C) H! B. X1 r
101-200 83 m: }0 n8 G- V% E
201 and over 10
+ _; ]( B/ n3 k4 S: U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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