PDSH 1012 Samples selection (family products)

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小型摆管淋雨试验机

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PDSH 1012 $ ]2 y' ^( B- E' d

Samples selection (family products) + T, u* E, l- y& ?9 ~! v# u

General

61047(ed.2) & 61347-2-2(ed.1);am1;am2 & 61347-2-2(ed.2) 2 |8 E: Q: I9 M1 F1 c* `

Standard(s):
% e4 h6 @4 o9 ?IEC 61347-2-2
IEC 61047 All editions
& `( C- P- ~6 `7 ~8 x1 SSubclause(s): General
; T% w: X: _' m5 X( a1 G6 KNo. Year PDSH 1012 2010
% l% R0 n! n* ~' N9 R: bCategory: LITE Developed by: ETF5 OSM/LUM
9 J$ j8 R- i( t# ~3 xSubject:
- F2 S3 u0 l, Y! a+ VSamples selection (family products)
9 U$ |4 S) b$ |3 v/ t7 h, P2 o4 xKey words:
* o/ Q4 v& n' n1 J6 v- Step-down convertors
- Samples selection
4 }% c% [1 n2 \! ~3 L- IEC 61347-2-2 / 61047
To be approved at the 49th CTL Plenary Meeting, in 2012
Question:
5 K* z. N- l$ h5 `What samples to be tested in case of family step-down convertors?
( L9 q3 \9 ^& _2 j! T2 GDecision:
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,
* ~! o+ f2 @/ u! Oelectronic components, lay out, external enclosure);
b) the convertors with lower wattages are provided with the same "tc" and "ta" values as the
$ f+ {7 p* B6 mmaximum one.


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