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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
) |& l8 @& `. Y' `9 H( Klosiondy 发表于 2014-4-3 17:53 
# L6 r, e# Y2 {& f3 l40A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.
$ [2 L5 t/ m$ g标准CSA C22.2 No 0.4中，3 r4 f- L8 Q9 O+ T$ T
4.1.2 Procedure
. Q$ w( W, U) p |4 ^4.1.2.1
2 U1 x6 ~/ q% h. A% Z3 r" p+ OThe impedance test shall be conducted by passing a 60 Hz current from a part to be bonded to the
0 g1 q4 I5 j' ^7 S/ _bonding terminal means and measuring the potential drop between them at the end of the period. The/ k# f) @# U, T) Q6 @0 u
current shall be as specified in Clause 4.1.2.2 and of the applicable duration specified in Table 4.
, G/ ^9 p, L* a% B$ ITable 4
, {5 E) L: _7 S* IDuration of impedance test current
% y" v$ e7 z& L6 c(See Clause 4.1.2.1.)+ w; `2 G9 j* `
Fusing of branch circuit required for equipment, A Time, min N. [7 s ] f1 T" I. n% _
0-30 2
: z( C" c- S0 A31-60 4
* M# q2 h" A, |61-100 6' H1 e6 w' u6 K) _% }
101-200 8
( W: m% {. J: M8 e5 \$ k7 ^201 and over 10
% S) R2 n% r" y+ u1 A这里所提到的阻抗是指接地电阻么？ |
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