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|  DSH 466
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' W5 O0 i0 i4 `0 Y, w; l4 g | Screws and connections
' L3 r+ v/ Y8 C1 c$ D/ z$ a | 28
) f9 g# }; f0 J3 [ ]5 F | 60335-1(ed.2)
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. F1 }5 l& U. {8 S* I9 C& wStandard: IEC 60335-1:1976, 2nd Ed.
6 k- b. P2 Q# v( K FSub clause: 28: v( w4 t7 w( _+ E
Sheet No. DSH-4669 g! f7 h) Q3 d/ B, @# L
Subject: Screws and connections) @' j% n: g! T+ \' w/ ~- ^
Key words: - torque test
+ T/ ~% l* e* A( aDecision taken at the 40th CTL meeting 2003
, M% i* y& u% d5 T' t, s' GQuestion:% b3 m% t' c8 `: x& Q
How many times shall screws be tightened and loosened during the torque test in view of
6 G6 R5 x0 W& a6 R3 Jprevious tests?6 L% ]4 p$ Y" S( B( U
Rationale:
0 f2 e5 S% F' }& x, I: gSee question.
6 Z9 {9 I: q0 X" M7 j# Z! DDecision:, i% s4 z( `, @ T
Tests have to be carried out as stated in sub-clause 4.2 of IEC 335-1:1991. The tests are
! ?$ P+ V f) \* S$ I$ M8 Kmade on a single sample as delivered, which shall withstand all the relevant tests.% e9 V& m$ N& N4 L2 s$ u( {& y
0 @2 u. v: c' K# d) ? W! S
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