DSH 537 PCB layer transformers

小米

广东安规检测
有限公司提供：

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

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

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

针焰试验机现货

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

4 W1 [/ a6 [$ l* E( |, [$ e+ c
+ J$ X2 V2 _% K% }  n2 p

DSH 537

PCB layer transformers

General

60601-1(ed.2);am1;am2 ' |) ]7 d+ T& R! d2 ]! l

) c* j0 K, h4 U  g3 _0 e
Standard(s)- (year and edition):
IEC 60601-1:1988 Ed.2
3 [) J% K/ e7 _# P. F  x' j) oAm1+Am2
Sub clause(s):
) i) D) v- ~4 e+ }7 p* x& ~General
Sheet n°: 537
Subject:
PCB layer transformers,
( t  ^. G9 p) {. ~3 V& z+ ?Key words:
3 T, y5 e8 j, ^$ X! ZPCB layer transformers
& t7 Y7 W6 A$ f4 o7 sDecision taken at the 40th
meeting 2003
Question:
What requirements are needed for PCB layer transformers using etched windings?
Decision:
+ c! ^% ?3 Y. zThe requirements of the IEC 60601:1988 Ed.2 should be used with regard to creepage distances and
isolation distances through thickness.
Explanatory notes:
( C4 S+ d( ?6 J3 s" u# y9 z3 lThis issue will be put forward to TC 66 and TC62 to deal with this specific problem. In the meantime a
temperature cycling test according to IEC 60950 can be used for reference. Base for this test are the
temperatures retrieved during normal condition tests calculated/adjusted to an ambient of 40 °C. It is
important that the influence of the temperature of other components shall be taken into consideration.
The minimum thickness through insulation can be taken as from IEC 60950, being 0,4 mm.
2 M; x$ |3 U! ?/ s
! }# _* Y* I% r% y( Y+ J8 i
* u, p$ F+ _1 `
% Z, K& Q5 k$ x( _/ X% U2 l