|
|

楼主 |
发表于 2014-4-24 10:25
|
显示全部楼层
本帖最后由 hgf397556998 于 2014-4-24 10:49 编辑
, k% g' Q" C1 T7 [- alosiondy 发表于 2014-4-3 17:53 
1 Z' `; L# u/ ^5 v7 E( G5 k40A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.
; z% Y* {5 b! Z: {7 \ Z+ [0 I2 `标准CSA C22.2 No 0.4中,
8 _ N4 W# M" {$ D" T* i+ V4.1.2 Procedure
& @; u& n1 t' h1 }# c4.1.2.13 A1 }, }% k; E$ @( D E/ _) v
The impedance test shall be conducted by passing a 60 Hz current from a part to be bonded to the
& L9 S* v* @. B7 { f3 s- k- gbonding terminal means and measuring the potential drop between them at the end of the period. The
! V! R. H1 U$ bcurrent shall be as specified in Clause 4.1.2.2 and of the applicable duration specified in Table 4.
# b" k0 [5 X5 P6 y: h% pTable 4
& `# j: ^+ o. D- d' s4 zDuration of impedance test current
0 N6 s! c# ~3 ](See Clause 4.1.2.1.)& B& A' N) c( @, Z G
Fusing of branch circuit required for equipment, A Time, min
. ?! k& }: j' O6 `6 s6 n1 k0-30 2, c5 L8 Y6 J8 c
31-60 4
9 Z4 d( P. O& b6 @61-100 6
) a7 G2 g& z, `) I2 a3 B101-200 8' J0 e* g/ e$ j# I. L! ^/ J
201 and over 10* y7 P* W# h& j% i# J% h( h
这里所提到的阻抗是指接地电阻么? |
|