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|  DSH 4560 `4 m" e7 @4 I* N- O; c5 Y
: O- b$ q) g) y' V c- K2 g" H, C | Insulating resistance and electric strength
+ l: y* g5 K4 X6 y | 16.4
: J3 [" N5 ?7 N) a7 o, @) W3 G | 60335-1(ed.2)" r/ k; a+ C' X
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9 f h2 f* t5 M; pStandard: IEC 60335-1:1976, 2nd Ed.
6 ?$ H0 B8 @1 R1 W' f: c1 [/ eSub clause: 16.4: x5 E, H) c; t) K, z ^! W$ G+ t: X$ N6 f
Sheet No. DSH-456- p. Z. |" h! V
Subject: Insulating resistance and electric strength
t+ [* {, d& \4 x" P( }Key words: - use of metal rod - use of metal foils U0 } M7 t2 b/ A V: m
Decision taken at the 40th CTL meeting 2003
- n/ H* H/ K* J" v* f1 h DQuestion:7 q4 t+ Y. Z& }$ z
During the electric strength test on cord guards and cord anchorages, should a metal rod or
$ K% Q) _$ b0 e- [3 B7 Dmetal foil wrapped around the cable be used ?* @) H/ ]' E. W5 p3 X0 _1 \- T
Rationale: K) v7 T2 T, ^ [
See question.
% x: [! r4 p$ ?/ `% Z3 {7 \Decision:
3 X6 ]6 ~! ^* j8 _: g7 X9 ]In case of doubt, the cable with the foil wrap is used for cord anchorages and a metal rod for
! ^7 m: t# {1 B5 A" cthe inlet bushings.. ^6 ~9 z& P- l) P; n
The torque for the screw and clamping means should be 2/3 of what is stated in the table of. G$ |/ r a8 }6 C. I% Y7 k! _; ]7 D
clause 28.7 u2 q' j) k$ C- _
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/ j$ y0 N* [2 _1 q' ]: c$ V- w+ g, c6 H# {$ i _. y
; j% [6 S( I( k7 ~# c! [' N$ v0 D
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发表于 2012-9-12 14:53
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