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|  PDSH 853- s8 T( q* h! p$ x
: ?; a% p" R A7 s
| Locking device for screws* t6 P) T8 X7 p& z% Q
| 4.11.3
. a* u. y j0 r" p1 @( G | 60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)
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Standard(s):; d- P) ?& f, Z+ }! \
IEC 60598-1 All editions
- s9 e, r! O/ `( s5 uSubclause(s): 4.11.3' r: ]6 t. y" y) k. h
No. Year PDSH 0853 2010
1 ~6 m! a% J% J/ JCategory: LITE Developed by: ETF5 OSM/LUM/ P" ?7 l9 j8 L5 P: n, k
Subject:. z8 p+ }/ `, T$ U% v, Z" x7 Y k2 D
Locking device for screws0 g, L8 c6 W1 n6 y& O4 W
Key words:* e; k4 J2 z) {( y( g Z, p7 p
- Locking device
6 F7 R0 e: D) I# @. n( k8 l! Q9 d- Mechanical connections
+ g; j" b1 Y8 [2 E- Fixing screws
6 F$ I; P L! _& |, gTo be approved at the 49th CTL Plenary Meeting, in 2012
" m7 l# U5 N- w% z; e- L4 ^: bQuestion:
5 V4 b# @ C' ^% KScrews which serve as electrical as well as mechanical connections shall be locked against loosening.
) p4 t+ ?% k7 g+ |3 u3 D1) Is it acceptable if only one of two fixing screws of a ballast is provided with a locking devise?4 R& ]% C' l6 E2 y- }0 g2 W# V
2) Is it acceptable if the ballast is fixed with only one screw (provided with a locking device), while the+ f4 l3 P, e3 c5 D& ?& P. b
other side is fixed with tape?, i. s2 {: J! ~! M" H
Decision:9 h+ z6 u6 [' y/ c' U8 J6 `5 X
1) Yes.& D R( y5 |8 G( H8 F, r# P
2) Yes.' K4 B4 ^0 `+ C% S+ {9 n
0 b. @3 Z0 ^; t; c+ s- {9 j
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发表于 2012-9-17 14:56
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