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本帖最后由 hgf397556998 于 2014-4-24 10:49 编辑 ' F5 u2 K4 Y# s8 x! a9 \. }
losiondy 发表于 2014-4-3 17:53 
`5 E3 R4 I+ k; {; v6 p: ?4 s40A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.
& I- @) v& n( p1 u- W7 m标准CSA C22.2 No 0.4中，
$ g# i. N% r( Y. l; k2 a4.1.2 Procedure, Y# g6 `2 r2 m- F6 R6 p2 V K9 X
4.1.2.1: Q9 W! }* w/ [+ B8 a0 k
The impedance test shall be conducted by passing a 60 Hz current from a part to be bonded to the# @# I! E1 F+ l) D. I7 e
bonding terminal means and measuring the potential drop between them at the end of the period. The; B/ {' t9 w8 [ M/ V, V
current shall be as specified in Clause 4.1.2.2 and of the applicable duration specified in Table 4.
0 `, a( ]8 ~5 e2 `9 A6 b. NTable 4( E& R6 | e* a( U- k
Duration of impedance test current8 `' M7 }5 y* a0 A; u. M6 d8 y
(See Clause 4.1.2.1.)8 P2 ` h& c+ q2 I2 T3 G
Fusing of branch circuit required for equipment, A Time, min
1 P% V5 S( X7 V% {8 f0 ~* W6 S& n. p4 {0-30 2; P1 a3 m3 C( v0 Y) \
31-60 4- y4 E. |, i7 a" y
61-100 6
' f% h/ C5 B2 Y3 g( r101-200 8& _! `# g7 f0 r" o/ S
201 and over 10
4 W3 T# S* a9 k9 b" Q) z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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