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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 9 @- l' f* ]9 r& C0 l. c) m
losiondy 发表于 2014-4-3 17:53 % D& y7 m7 q* ^) 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.
$ ~% H9 {4 V- Z1 ~( n3 N9 P标准CSA C22.2 No 0.4中,
, N, u( _) n4 U) b% |7 E/ U3 G4.1.2 Procedure
+ ^8 z3 j3 ?( J- z+ V* ?% N8 Y, i4.1.2.1- b/ c3 f7 }0 B3 U1 k4 O6 a7 C
The impedance test shall be conducted by passing a 60 Hz current from a part to be bonded to the
% A7 C2 u& [- D8 a' ^4 D$ G# Wbonding terminal means and measuring the potential drop between them at the end of the period. The
4 N* d$ d* o# F: N5 |current shall be as specified in Clause 4.1.2.2 and of the applicable duration specified in Table 4.
. d4 o6 r P2 ]9 @4 UTable 4
8 V) J: I, V5 ^8 ~, _- N* bDuration of impedance test current
& s( m$ q6 l9 l8 L(See Clause 4.1.2.1.)
" O0 [" Z( W% ~8 {Fusing of branch circuit required for equipment, A Time, min+ C9 K" C4 d9 \3 M
0-30 2. A+ [. h e N$ K* _3 F1 ^1 F
31-60 4
$ Y1 j! o" [' `61-100 6
; C) T1 [5 \ \8 M' P101-200 87 M: N9 T z5 K% J
201 and over 10
, g- Z: R1 Z& Y2 C9 I. ?3 n" S这里所提到的阻抗是指接地电阻么? |
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