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|  DSH 108
$ b6 B: u0 ~; r! H: }
3 K; w/ r) I7 f: L+ h | Screws and connections
8 @ `& P2 `8 Y: w6 j/ l | 28.11 G9 y9 S# w* n4 }% s! f4 S, T& n
| 60335-1(ed.3)$ Q' Z3 [; h( }
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8 @& J9 Z; a( p% |$ Z5 I1 ^$ XStandard:
0 o U1 F0 ~" z8 @IEC 60335-1: 3rd ed. 1991
, J. u8 ^' w# D" W, I& JSub clause: 28.1 Sheet n°: 108& n- C; m2 O! h! {5 }3 f
Subject: Screws and connections Key words:
- Z7 j# ~# m; }- i; b- screws in engagement in insulating material
; n! a; o0 k/ `$ g3 B0 a' |5 x; b) @Decision of: 23rd CTL meeting to be reaffirmed at 39th meeting.. L8 L. q& L, J9 x( L
Question:
[5 U) g2 D: P9 u F1 e! E1 hShall the torque test on screws, where the screws thread into insulating material, be carried( a W' Q! b, j9 a# |
out 10 times consecutively or with a pause between each time?
c: p1 V0 y4 `0 `4 x+ H: zDecision: V/ L, H* Y2 l$ [/ x
The test should be performed with a pause between each time for adequate cooling time6 V3 h* W. W, N' l2 `
between each torque test2 `, F/ w+ L) k' S; }2 T9 W9 a
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发表于 2012-9-14 14:05
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