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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 1 q! I! z) G( K& r
losiondy 发表于 2014-4-3 17:53 8 C/ ^8 B! g, a0 ?& \
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. 5 o6 e5 h* k- q
标准CSA C22.2 No 0.4中,
' B, s7 v0 E0 N% w# d3 j% ^8 |4.1.2 Procedure
* b* D/ }% t' f) X* K1 M5 b4.1.2.1) b2 A/ n: Q: x7 w6 N( D) y2 K0 `5 d" W
The impedance test shall be conducted by passing a 60 Hz current from a part to be bonded to the# P. ^$ _$ @# s, `& U* W& w! N& I
bonding terminal means and measuring the potential drop between them at the end of the period. The
( d" S+ s. D8 U$ Dcurrent shall be as specified in Clause 4.1.2.2 and of the applicable duration specified in Table 4.* X+ f+ Y: }: G' O* D! ^1 K
Table 46 c7 a% L9 r) E1 W$ m% I
Duration of impedance test current
* h' ?& E# o$ [5 s: l& R(See Clause 4.1.2.1.)
1 w; X+ Y- x& H6 p% U" L. ?Fusing of branch circuit required for equipment, A Time, min
. _* s z% u/ A$ U0-30 2+ |; X' a4 O2 g! o4 F
31-60 4' o: g8 d# ?0 T, m+ M
61-100 66 K: ^7 r+ L: ~1 f
101-200 8
! I! K" H( j2 y6 I3 E: c201 and over 10
3 q1 |8 o' _8 H) z这里所提到的阻抗是指接地电阻么? |
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