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|  DSH 466
2 s8 ~8 f! O" \9 ?! Z' b
5 q& D7 z3 t4 E' L2 r" W3 ?& m" o; U4 _+ A- e0 z4 Z J# m4 M+ g, c
| Screws and connections" T4 N; N3 R- E/ g* h) o
| 28
x( w2 A: O0 I- Q | 60335-1(ed.2)1 L7 S4 B% s( P) z) h
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Standard: IEC 60335-1:1976, 2nd Ed.
- m- V4 Z9 q) C" d- ]Sub clause: 28
& ~& X4 Q2 F( v4 s7 W7 w" rSheet No. DSH-466) ?' S2 C& {0 @
Subject: Screws and connections
) M: E6 u0 i- q& i, L, QKey words: - torque test
3 s" s1 l9 Y5 z' X% tDecision taken at the 40th CTL meeting 2003
5 R. e' S& f. q t; q* aQuestion:
$ E$ M6 p+ _ EHow many times shall screws be tightened and loosened during the torque test in view of
' U, w0 K- u# A8 n5 c1 Oprevious tests?
3 c# L4 P+ b$ K; b. s' K2 o [Rationale:
9 }2 I. P6 W* OSee question.' H" p% V1 S# y; V
Decision:6 @! W8 q6 C/ p& `" u
Tests have to be carried out as stated in sub-clause 4.2 of IEC 335-1:1991. The tests are
$ t# M* t/ w8 Q. b/ A9 n4 c( M- pmade on a single sample as delivered, which shall withstand all the relevant tests.2 E0 ~" A, l7 g* i
+ v( B; _ { \5 p3 w0 F8 [* b, v5 j
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