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|  DSH 466
1 Y' o1 I4 w; }/ H0 z6 v, l6 j" X" n' T+ h
5 ?2 h/ X# P0 l) [. f
| Screws and connections
, o' I9 A- Y) `0 Q0 T! o4 z; s | 286 N- ?/ F( ]* o& d
| 60335-1(ed.2)
- L9 m- l, C* s- G |
4 x$ Q. M1 ~; x# {4 c+ hStandard: IEC 60335-1:1976, 2nd Ed.
) Q y3 w) b4 {+ a' n! H5 ?Sub clause: 288 f ]5 q% m& ~3 v3 t% y. w# y
Sheet No. DSH-466
; { `7 b5 e1 {, XSubject: Screws and connections/ e# _" d6 H- n8 I: E" m
Key words: - torque test! j) Y: O: O; |1 `' L. q3 G
Decision taken at the 40th CTL meeting 2003& R4 f6 Z' S6 Z( _
Question:; h8 P! S9 g. C: T/ m5 v
How many times shall screws be tightened and loosened during the torque test in view of% @, n- Z& q, g2 c" f; F( r
previous tests?5 g. u+ i( Y9 ^1 }
Rationale:
# \1 I" ?: x1 d) A& FSee question.( J% B9 Y+ e3 G- C2 S# {+ x# L
Decision:+ `1 n4 Q' Z+ l6 `& n1 z5 Y
Tests have to be carried out as stated in sub-clause 4.2 of IEC 335-1:1991. The tests are3 _. @8 Z* c! V: b# h( p
made on a single sample as delivered, which shall withstand all the relevant tests.) A! L4 c. l; |# W' v- L1 `% c9 G
+ g6 y5 `: ~1 i( y) T8 q [
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发表于 2012-9-12 13:27
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