PDSH 857 Rivets for electrical and mechanical connections

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PDSH 857 ! N" ^' _: t  Z- h9 i$ m6 I

Rivets for electrical and mechanical connections ' D; j% n7 L8 n; X# F

4.11.3 – 7.2.4

60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7) 2 I$ e6 d+ x* q4 j

Standard(s):
& u$ H+ e! J6 r& g% tIEC 60598-1 All editions
Subclause(s): 4.11.3 – 7.2.4
; q! l6 V- `2 y8 aNo. Year PDSH 0857 2010
Category: LITE Developed by: ETF5 OSM/LUM
; j- N* R" j6 H3 \* u" w7 I0 d3 GSubject:
. Z" x, a6 z& W( q* t, @  QRivets for electrical and mechanical connections
% }: I: z4 t7 z! v0 n7 }Key words:
- Rivets
- Earthing connections
8 d% w' s4 m/ I+ ^" T- Accidental loosening
4 w+ d" b1 j. t3 r* |To be approved at the 49th CTL Plenary Meeting, in 2012
+ o# ?% M$ F5 ~- l4 y# ~  dQuestion:
  H0 T* e! ?3 a* ~Should the rivets that serve as electrical as well as mechanical connections be protected against loosening
even if they are not subject to torsion effect in normal use (e.g. rivets intended to fix ballasts).
Decision:
It was agreed that earthing connections shall be adequately locked against accidental loosening, either by:
% F9 f4 S# H/ j6 z7 Q) J: D- at least one screw with a spring washer, or one rivet with no circular shape;
+ \% {: }1 m: l, w' H( L- two rivets in case of circular shank according to sub-clause 4.11.3 of IEC 60598-1.
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