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|  PDSH 853
^. Q9 N" p! K8 n7 Z8 i: a
" V) Z3 w+ s: D* e8 K: _9 P9 f4 L | Locking device for screws; r+ _! ~" `" \0 g) f, [
| 4.11.35 r' u1 D) o! R; N4 i$ |* r2 h7 W
| 60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)+ [1 O- v0 l. | L
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8 a: P2 I; Q: [) |* B/ gStandard(s):
' B, }, v$ ~) f) hIEC 60598-1 All editions
5 K7 j2 m8 R" b9 N: g: {Subclause(s): 4.11.3
$ P- Y' [0 ~' R+ j Q$ q RNo. Year PDSH 0853 2010
6 u: ~7 ]" h0 ~% @, D- yCategory: LITE Developed by: ETF5 OSM/LUM
# Y0 Q- c* q0 h7 H: n2 S- a9 qSubject:
0 h1 K. |' H, }7 C; h( j! ]+ CLocking device for screws
/ \; z: _" L6 v- x- dKey words:
' r& L+ `1 [ |% ~. ~- Locking device
. F3 g# `# D& v: }! g5 _- Mechanical connections+ D- e/ p* T+ d
- Fixing screws- P# y. q& g; H/ x" W
To be approved at the 49th CTL Plenary Meeting, in 2012. L9 Q+ f4 X5 S7 e
Question:
: Z9 E# u1 U3 T: g3 i5 U) w) gScrews which serve as electrical as well as mechanical connections shall be locked against loosening.. F( W! r; H% `' o/ v1 u
1) Is it acceptable if only one of two fixing screws of a ballast is provided with a locking devise?
6 s& Q, L$ b5 R/ _) j3 y7 k# X8 F2) Is it acceptable if the ballast is fixed with only one screw (provided with a locking device), while the7 B' ?2 K; K. C) V8 H+ V
other side is fixed with tape?+ Y+ j0 o/ i3 V/ ~" C
Decision:* J! J, z$ ]( @+ M8 r: F; }& v+ ?
1) Yes.6 z y0 p2 A% V
2) Yes.! i+ K! y# S7 c8 A
) |9 ^5 F) H4 L9 p% i, [0 D0 X* a; P( d% |! d* F
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发表于 2012-9-17 14:56
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