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|  DSH 466) X+ D: h, @6 @
' F* X; Z: k- b
$ c4 \; x4 o; h% X& } | Screws and connections' R3 v5 j a* I; X2 W
| 28' |) j- R! i `+ V, H2 |
| 60335-1(ed.2)
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( j4 p% @6 D! |: H' U8 TStandard: IEC 60335-1:1976, 2nd Ed.
; r `" ^/ L% _, DSub clause: 28
! U! K$ H u1 mSheet No. DSH-466
% ~8 w* c2 ~. L. |6 SSubject: Screws and connections
8 b, d) F( }* u! m5 {9 \- ~Key words: - torque test* y2 i$ \. {( Y; Q$ r- x" K- k
Decision taken at the 40th CTL meeting 2003
* J P3 ^: Q4 @9 ^' y+ @% e: _Question:7 s6 P4 M6 M2 f: @ s% h8 |
How many times shall screws be tightened and loosened during the torque test in view of1 J3 ^6 p+ W7 }' S
previous tests?6 ~$ @3 K4 ~8 F) d- R/ R' Z
Rationale:/ G* _4 O1 @0 R! z+ A: Z- @
See question.
' l5 I9 M: j3 K0 m6 ~ MDecision:
1 F& c" |# m2 D$ {% u5 iTests have to be carried out as stated in sub-clause 4.2 of IEC 335-1:1991. The tests are
+ U2 I$ Z% x" A7 G% \+ lmade on a single sample as delivered, which shall withstand all the relevant tests.* Z% \) y7 Y# d6 |# X" w
( @5 r* e+ z. X, P/ ]
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发表于 2012-9-12 13:27
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