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|  PDSH 853
+ R* S2 V& T# W& m' i0 M4 e
+ m0 F) e K+ ?5 j( H | Locking device for screws
! N- \1 Y S5 p$ D+ W5 F | 4.11.39 m9 F; @4 v$ z% W$ k
| 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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v, \6 ^" i( ?3 c$ C9 j9 ]: EStandard(s):" N; m) G( X' {: ^% Q2 I" ]
IEC 60598-1 All editions
, G6 L/ u8 A% O: m. @+ VSubclause(s): 4.11.3
1 @, z" Q6 ] f: u, _6 ?- UNo. Year PDSH 0853 2010/ ~4 U$ c5 |8 ]& z6 \8 i) K
Category: LITE Developed by: ETF5 OSM/LUM* r( T, P- U' g7 `; \# W
Subject:
4 x6 R; K& Q& Q# zLocking device for screws C# M; J( M$ x- {9 v# E
Key words:. ^9 P; L) K5 ]' K- u& X
- Locking device0 x- @2 h2 H/ A7 c/ H, M
- Mechanical connections* t4 ]7 r6 g" A% \% K, c
- Fixing screws% K5 R1 ]+ s, [5 X
To be approved at the 49th CTL Plenary Meeting, in 2012; Z# h& O2 `& ? z
Question:
' n+ | ?$ r e& AScrews which serve as electrical as well as mechanical connections shall be locked against loosening.
: |6 p# |, }/ ], [! m1) Is it acceptable if only one of two fixing screws of a ballast is provided with a locking devise?6 z( X9 ]$ \+ Q
2) Is it acceptable if the ballast is fixed with only one screw (provided with a locking device), while the
; i; t1 \$ \8 I1 @4 g3 oother side is fixed with tape?
; F+ x3 g+ Z: M" J! C6 UDecision:
; O0 G6 v4 C7 b0 x: K/ P8 X1) Yes.
8 d- O1 ^" r8 s2) Yes.) @" F* p, a; V, _% R1 J% s
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发表于 2012-9-17 14:56
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