DSH 466 Screws and connections

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DSH 466 0 j$ D1 v, \* `( e( A& S5 ^ 9 z, s8 `) @* ?5 V - L  b( _1 }0 X: W( t( o

Screws and connections 1 s+ |9 \/ T1 i" [7 W3 Y1 Y

28

60335-1(ed.2) & R+ `6 j% T0 H

1 }6 @  d9 z+ eStandard: IEC 60335-1:1976, 2nd Ed.
Sub clause: 28
! x5 S1 h1 r. e7 x0 Q9 v' y( {3 uSheet No. DSH-466
Subject: Screws and connections
Key words: - torque test
Decision taken at the 40th CTL meeting 2003
Question:
How many times shall screws be tightened and loosened during the torque test in view of
previous tests?
; ^, U8 V; D$ Z9 A" W4 F) fRationale:
6 k, y5 f; Y9 A5 \% k. }; c7 }See question.
Decision:
; U+ d4 ]1 C& V& D+ G7 a3 m& eTests have to be carried out as stated in sub-clause 4.2 of IEC 335-1:1991. The tests are
made on a single sample as delivered, which shall withstand all the relevant tests.


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