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|  PDSH 853
7 Z, ^, _5 e4 ~, q
3 J* t. F! J/ V" x- K | Locking device for screws
* q; O- q4 `) \5 B4 d( b9 j | 4.11.38 F1 s6 ~8 H0 y
| 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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: j8 r0 I& g7 t: ?* a+ l& r% TStandard(s):
8 S5 Q: ], R2 L9 UIEC 60598-1 All editions
* A v# Q: ?! b4 v9 e4 NSubclause(s): 4.11.3: @, [. H7 n% X
No. Year PDSH 0853 2010
( U7 A4 a3 {2 A, ACategory: LITE Developed by: ETF5 OSM/LUM# @0 D& C [- Q# [4 S& ~% m
Subject:) s8 v) Q: z& \1 X
Locking device for screws; Z* w0 u3 x- f/ j
Key words:
' o) |! {# t# g8 H* k) b, m M- Locking device5 V6 J+ P# C& u, [- c
- Mechanical connections: A2 ?2 T# b- ` L
- Fixing screws
; ^+ g4 L% T. b9 NTo be approved at the 49th CTL Plenary Meeting, in 2012% @2 z$ Y V y2 q, {* p6 f/ _
Question:
; S+ t @0 `7 e8 cScrews which serve as electrical as well as mechanical connections shall be locked against loosening.& `- V: y6 K# c) z( X: H2 w4 T! |
1) Is it acceptable if only one of two fixing screws of a ballast is provided with a locking devise?+ P# l* T& ^; O7 y0 l, X) S, @( M
2) Is it acceptable if the ballast is fixed with only one screw (provided with a locking device), while the
% q* |2 ~5 u5 k Q2 g/ i& \+ Kother side is fixed with tape?
{* g1 N3 w2 W' uDecision:
* B% x* k4 Q1 @! b1) Yes.
6 U" ?! J' W4 c- t _: K7 ]2) Yes.
+ u0 P0 x- Q: ^, t$ |! |2 v+ y9 m* @9 b: t; {9 n# u' x( q
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