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|  DSH 466
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, |- E% p) o) i' m( m$ Q | Screws and connections$ ?+ X0 a4 M; `
| 28
n& o3 t' g* Y* O9 w | 60335-1(ed.2)* J. W. N$ P# @3 `. j- n4 b: [! o
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Standard: IEC 60335-1:1976, 2nd Ed.
& \4 y/ Y! ^9 E3 {2 f: h' SSub clause: 28
" `9 d; i$ b3 n) ~3 RSheet No. DSH-466; d) k7 [/ d* V' \8 _
Subject: Screws and connections6 y; ]" a; `1 U$ R3 z+ }
Key words: - torque test
* {) R% O2 d8 N k/ J$ L- }Decision taken at the 40th CTL meeting 20032 z3 W# s N* S1 N( j$ X6 u
Question:
7 s. L Q) D. E G4 L: W+ y4 XHow many times shall screws be tightened and loosened during the torque test in view of
" a$ ]+ k, t+ B/ m# y; rprevious tests?. t% a5 ?5 M% ~
Rationale:" P/ s1 f$ ]1 |3 {# C
See question.
6 y4 y+ L' w0 v1 J8 JDecision:* w: ^$ C# W0 y9 N! T
Tests have to be carried out as stated in sub-clause 4.2 of IEC 335-1:1991. The tests are* p; U+ N3 }. \) h
made on a single sample as delivered, which shall withstand all the relevant tests.
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发表于 2012-9-12 13:27
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