PDSH 1012 Samples selection (family products)

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小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

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各种灯头量规现货

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灯具防风罩

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UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

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热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

PDSH 1012 3 a& ^' w+ j  ^( l/ Y+ D9 a/ C% q& K6 A' Q & d- b! C8 L/ |$ ^) F

Samples selection (family products)

General

61047(ed.2) & 61347-2-2(ed.1);am1;am2 & 61347-2-2(ed.2) 4 P$ `! [! r1 D8 `+ j( b

& \- |& G$ l5 T" ], oStandard(s):
0 k% Q8 c3 ]" \2 w* C* r7 GIEC 61347-2-2
! R) B% U, U# gIEC 61047 All editions
Subclause(s): General
) [- @) w- ~# sNo. Year PDSH 1012 2010
Category: LITE Developed by: ETF5 OSM/LUM
Subject:
Samples selection (family products)
Key words:
- Step-down convertors
4 u3 A7 v  A, F1 Q- Samples selection
- IEC 61347-2-2 / 61047
To be approved at the 49th CTL Plenary Meeting, in 2012
! c% z" A: Y3 k, J- w3 q8 }Question:
, @' T: Y4 `1 d4 E* d* mWhat samples to be tested in case of family step-down convertors?
Decision:
( ?9 n2 P  y; |7 AStep-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;
% y) j$ b- m# B  {3 Y- heating and overload tests. It is possible to check the convertor with the maximum output if:
0 x. y* g) }! T0 D* s3 J3 H8 o( ka) the convertors with lower wattages are identical to the maximum one (same circuit,
. |! B8 J# @9 D( p- u# G0 R& yelectronic components, lay out, external enclosure);
) @7 L, j9 `1 ob) the convertors with lower wattages are provided with the same "tc" and "ta" values as the
maximum one.

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