PDSH 853 Locking device for screws

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PDSH 853 / q4 N, [: S$ v8 U+ g' P% A- E 8 m6 y( f( a% U

Locking device for screws 7 n) d+ g* y3 r* I+ i; j) b: E2 Y

4.11.3

60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7) . h, r6 u4 H! o1 m8 y6 Z% S1 k

Standard(s):
8 U! `" n9 i* |/ Y- BIEC 60598-1 All editions
, }7 |1 \* U8 X. P2 i6 c3 d7 SSubclause(s): 4.11.3
( \3 O8 Y  j4 [, [0 W9 rNo. Year PDSH 0853 2010
$ a  \9 r+ d6 `& Z  N$ L. yCategory: LITE Developed by: ETF5 OSM/LUM
* W& z5 i3 J" L  n! y- Q" USubject:
Locking device for screws
0 \/ c/ K% z8 H( l9 A; Y, U) WKey words:
$ q2 D3 W  a  a- Locking device
/ F6 L- c6 p' U$ E- Mechanical connections
- Fixing screws
! ?  j! b5 O5 O4 j* ^4 ^To be approved at the 49th CTL Plenary Meeting, in 2012
% S2 E1 b% a4 W/ O9 A* m+ ]Question:
& R/ J8 o) w9 b! @. H* H( sScrews which serve as electrical as well as mechanical connections shall be locked against loosening.
1) Is it acceptable if only one of two fixing screws of a ballast is provided with a locking devise?
3 Z8 G2 P' j+ m, [  U1 F5 H2) Is it acceptable if the ballast is fixed with only one screw (provided with a locking device), while the
7 r  H# T% K/ h2 v$ V  `other side is fixed with tape?
6 D+ P5 ?* r+ ]Decision:
% M/ H( y2 d2 I% z9 u2 Z1) Yes.
2) Yes.

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* c" B2 O2 X' g( ~% {  ]" {