|
, s! U" c1 \- _/ S
2 W2 i& R' S8 N$ ?0 z( B8 q
| PCB layer transformers
# k) Y9 n$ N# A | General
/ b% F9 U2 w2 t3 f+ F6 _( l | 60601-1(ed.2);am1;am2- F0 g" Y1 P+ u; ]1 f" j/ U( {) s
|
* R, b1 u7 J" G! w- J, `) L
* F: o6 v0 f: W* b- k" h% kStandard(s)- (year and edition): q% d0 N9 z* ^ F5 ~, H
IEC 60601-1:1988 Ed.2
: T$ b4 b3 i, }4 g- R2 D2 lAm1+Am2# s. V' ~0 x1 d: V% ?3 O7 ^5 P3 [
Sub clause(s):- x0 [8 g( ?6 [& Z
General
! D8 N% X; T7 v5 \# Q3 _Sheet n°: 537: }8 R2 b4 d7 o! V
Subject:
- s9 `( Q) o1 k* c: i6 O# UPCB layer transformers,
0 }" ], f3 M/ u6 y1 a5 jKey words:8 K4 H5 l3 j% Y( B3 ?& q7 B
PCB layer transformers
* s* C9 z5 P/ R% l# I3 m f3 yDecision taken at the 40th2 D* Y0 H( y) B# ^, E* ]
meeting 2003% c" X! c; v/ o% {
Question:
3 U$ b" c2 z: v0 T/ p3 o7 xWhat requirements are needed for PCB layer transformers using etched windings?% I' w b4 a$ Y! M1 \
Decision:
1 M9 U* W. i: r) P' v- I$ ~The requirements of the IEC 60601:1988 Ed.2 should be used with regard to creepage distances and
5 ?. w9 y/ `* A) q% l+ z' U8 u+ Aisolation distances through thickness.0 z% _0 ^) U. }" E: q% ]5 ~
Explanatory notes:! e# V/ y6 B/ s. j; m4 K1 c
This issue will be put forward to TC 66 and TC62 to deal with this specific problem. In the meantime a
( v) V; j- V8 C3 i" Etemperature cycling test according to IEC 60950 can be used for reference. Base for this test are the
/ f3 a t6 R% d& }$ S$ ztemperatures retrieved during normal condition tests calculated/adjusted to an ambient of 40 °C. It is
/ o; B: v8 J& \% jimportant that the influence of the temperature of other components shall be taken into consideration.
A& e3 G5 \# o& p, dThe minimum thickness through insulation can be taken as from IEC 60950, being 0,4 mm.
" B, j. |2 K @) c! w
3 F7 C* z; O! d; p
; w0 n6 v3 I4 v% ]7 e8 B/ ]3 I! K2 F, y! y' N3 J* u% \' b
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有账号?注册安规
x
|