PDSH 1012 Samples selection (family products)

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PDSH 1012

Samples selection (family products) 0 d/ h0 E5 j7 m( M

General + i7 d' ~6 l" j! a! e

61047(ed.2) & 61347-2-2(ed.1);am1;am2 & 61347-2-2(ed.2) 7 J  j) v2 Z/ n( x# }# r# @( `1 z, _

, a) m# m1 v) e: S6 HStandard(s):
IEC 61347-2-2
0 s  R3 f, X* k. Q$ o# sIEC 61047 All editions
4 ~: t/ z. ?# [- y: |! X9 OSubclause(s): General
No. Year PDSH 1012 2010
Category: LITE Developed by: ETF5 OSM/LUM
Subject:
2 n: W( Q/ y& ?Samples selection (family products)
0 I' M0 h# c1 s( eKey words:
- Step-down convertors
- Samples selection
' x# Q4 U$ z5 j' |9 Z- IEC 61347-2-2 / 61047
; R( U8 E; _4 _2 S0 v+ r4 r& ?$ uTo be approved at the 49th CTL Plenary Meeting, in 2012
' [8 y0 Y8 c, P/ ]4 mQuestion:
" W; ^( P. m/ ^0 }What samples to be tested in case of family step-down convertors?
Decision:
Step-down convertors, (d.c. - a.c.) (IEC 61347-2-2 / 61047) – Normally the tests are provided on all the
, O; |8 X  w& p, _# v5 Rtypes of convertors with the following exceptions:
- resistance to heat, fire and tracking tests, if materials used are the same;
- heating and overload tests. It is possible to check the convertor with the maximum output if:
a) the convertors with lower wattages are identical to the maximum one (same circuit,
electronic components, lay out, external enclosure);
8 G# k/ c' A6 k" O: |b) the convertors with lower wattages are provided with the same "tc" and "ta" values as the
maximum one.