PDSH 1009 Short circuit across creepage distances and clearances

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PDSH 1009 / i4 ^2 ?# F' b

Short circuit across creepage distances and clearances

14.1 7 V9 q1 h1 {) S/ s- f# P) D

61347-1(ed.1);am1 & 61347-1(ed.2);am1

0 A- X0 Z% f# t8 L& ?1 UStandard(s):
) @, a* l% U9 m9 @+ e" u/ X) `- n" ~IEC 61347-1 All editions
; s7 R2 E- l: T3 u: _- {Subclause(s): 14.1
6 A3 J& t( T) ]$ aNo. Year PDSH 1009 2010
Category: LITE Developed by: ETF5 OSM/LUM
% I( a. V! H: l/ s' XSubject:
/ ?/ C$ n7 m  G6 m2 W0 aShort circuit across creepage distances and clearances
; |& M6 J- e! A' l: Z3 ~Key words:
6 f) ]+ Q9 b+ _. V4 p- COMEX
- PCB
- Creepage distance and clearance
To be approved at the 49th CTL Plenary Meeting, in 2012
) w7 i/ T8 u, b4 qQuestion:
4 j) u- N  t- f$ DThe standard specifies that between conductors on PCB’s, which are protected from surge energy from the
; X6 @2 M- L* Y% M9 h* j: j$ xsupply (for example choke winding or capacitor) the creepage distances and clearances may be reduced.
Would such a reduction be acceptable after track-fuses, even before components, which reduce the supply
surge energy?
/ E/ |2 b- t! LDecision:
- p! S/ f( G" X8 O" R, @1 LNo.
2 h# g1 ?8 F2 u3 }) [! I) {% c