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

8 e# T% Q) f. Q
+ W8 N4 g4 e+ |7 _

DSH 537 0 t8 ^- J( K& `3 M# v- P! G0 \, ?

PCB layer transformers * a$ i  z* M$ ~4 R9 T

General % r9 L. D+ P( d( J

60601-1(ed.2);am1;am2

Standard(s)- (year and edition):
3 Q$ l- }' f  d+ i/ \IEC 60601-1:1988 Ed.2
& W" j  F+ c  K2 D7 V# c6 q" a1 pAm1+Am2
Sub clause(s):
& J( b. }' U* M% n0 `7 x9 FGeneral
Sheet n°: 537
% B/ j* ^, `' f: \& P3 f% _Subject:
; b; x: N4 r6 y3 Q, F- A( jPCB layer transformers,
) C+ ~. j) K/ W/ I  B0 Q" sKey words:
PCB layer transformers
Decision taken at the 40th
& I/ d" ^' T0 S* u7 K+ `meeting 2003
Question:
What requirements are needed for PCB layer transformers using etched windings?
Decision:
The requirements of the IEC 60601:1988 Ed.2 should be used with regard to creepage distances and
isolation distances through thickness.
! V9 o/ n  f3 `' oExplanatory notes:
6 x: X. |: F6 hThis issue will be put forward to TC 66 and TC62 to deal with this specific problem. In the meantime a
% c5 C$ x, _$ F. K  B. btemperature cycling test according to IEC 60950 can be used for reference. Base for this test are the
& @5 K8 f& A5 Y6 Q4 F+ Atemperatures 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.
" l( W2 b$ q; g0 k1 U9 r7 NThe minimum thickness through insulation can be taken as from IEC 60950, being 0,4 mm.

3 Z7 a3 z- r6 `! c0 M7 P8 G) a  t
- q6 U; ?) _: I/ D8 m* q: V
# Z8 H$ A$ C+ c