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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 + j4 d# c9 J2 @, S) h
losiondy 发表于 2014-4-3 17:53  6 X0 I4 q- F7 q4 \
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.
% n8 m! A( |% B; `4 G8 `7 u标准CSA C22.2 No 0.4中，% T/ `$ W+ S$ v: n
4.1.2 Procedure
; I f! w) H# J+ ?8 `( i9 n) R& F" Y4.1.2.1# t& V# q! ~- ^* w2 j9 ]
The impedance test shall be conducted by passing a 60 Hz current from a part to be bonded to the
# a0 I2 _7 ~( t* e& @0 h0 Rbonding terminal means and measuring the potential drop between them at the end of the period. The2 v9 S9 b( L9 Q I' | i& V
current shall be as specified in Clause 4.1.2.2 and of the applicable duration specified in Table 4.
7 Q% f: N% z" \, t1 MTable 4
$ U: k' H) d9 [; n c& \Duration of impedance test current
: p: ~% c: }4 Z(See Clause 4.1.2.1.)9 |0 n. U; \8 U9 A/ ]
Fusing of branch circuit required for equipment, A Time, min0 d6 S5 a* S! H2 q$ F, o' S
0-30 2- C# `7 v5 V. f) y4 ?7 J1 }
31-60 4% Z! x* n+ D& g8 Y% T
61-100 6. M5 v( k. z+ ~: _( k1 d- u8 c
101-200 8
" T. M$ ?9 h2 S201 and over 10/ b0 G1 T6 b/ J( T
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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