PDSH 1012 Samples selection (family products)

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PDSH 1012

Samples selection (family products)

General 0 W4 \) f6 M( i3 M! \& b4 X% S! \( P* [

61047(ed.2) & 61347-2-2(ed.1);am1;am2 & 61347-2-2(ed.2) ) b# V8 v- H* R8 G

Standard(s):
" {9 X) b( `( R+ w' XIEC 61347-2-2
IEC 61047 All editions
9 o9 S8 y7 s  \' a. U9 y9 ]Subclause(s): General
No. Year PDSH 1012 2010
Category: LITE Developed by: ETF5 OSM/LUM
Subject:
8 \: m( z$ D0 a# OSamples selection (family products)
. U4 O- [( f; @# [Key words:
1 F, m7 i; \1 ]: i- Step-down convertors
- Samples selection
5 q& ?. W1 U3 }' f- IEC 61347-2-2 / 61047
To be approved at the 49th CTL Plenary Meeting, in 2012
Question:
8 k2 w, k6 M+ w8 L1 H0 Z! Y. c5 r8 rWhat samples to be tested in case of family step-down convertors?
Decision:
) H0 p" M( F& D! x4 k3 {Step-down convertors, (d.c. - a.c.) (IEC 61347-2-2 / 61047) – Normally the tests are provided on all the
types 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);
b) the convertors with lower wattages are provided with the same "tc" and "ta" values as the
maximum one.


0 y; R* e: ?+ n' z