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UL60950:
3 ^& ?+ m! n7 {! H0 V% g- I" y+ TWhere two winding wires, or one winding wire and another wire, are in contact inside the wound5 T D A3 f8 c& Z, E1 ~
component, crossing each other at an angle between 45° and 90° and subject to winding, N% H, M# g H0 o5 @
tension, protection against mechanical stress shall be provided. This protection can be6 p/ B# b( w- s4 v
achieved, for example, by providing physical separation in the form of insulating sleeving or6 p! S n u, O3 g: N; V
sheet material, or by using double the required number of insulation layers.9 w; l5 k6 i+ c9 O
/ @' |' J2 `1 J# d- b$ a$ v6 O+ gUL60065
8 m( w+ X3 Z: K6 n% F( @' @7 M. s where two insulated wires or one bare and one insulated wire are in contact inside a wound
$ M" H4 m7 e- s$ ocomponent, crossing each other at an angle between 45° and 90° and subject to winding
) W1 c t T+ Q F$ itension, protection against mechanical stress shall be provided. The protection can be achieved* g0 o: K& T% R, p4 f/ n+ \7 \
by one of the following:* ^( F" h* L2 ?
• physical separation in the form of insulating sleeving or sheet material or using double
" T u( \& J* Q* O) w: l: Sthe required number of insulation layers, or the wound component meets the requirements of 8.18.
! H% @+ V6 ^; j! Q1 m– the manufacturer shall demonstrate that the wire has been subjected to 100 % routine# L% b9 n( V p* s
dielectric strength test as specified in H.3.6 e0 D' k( [: X; n) Y2 \
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如图中,次级三层绝缘线,1. 初级与次级线算是45与90度之间吗?标准里面是说接触,初次级没有接触呀(a. 有一点距离 所以没接触 b. 变压器骨架初级线附近有一个凸起塑胶挡住了次级线,也就是说次级线不会跟初级线接触)标准说的是45-90 度, 其实角度怎么参考?我是说两线相交,可以说是135度呀或其他角度呀?参考0度在哪里?
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3 d1 z# X7 l0 t% V 2. 初级线要加绝缘套管吗?或加marign tape 吗?- q+ ~" @* T! R" x: X: E; t' d$ T
: F7 ~( S3 t. j `' t3. 初级与初级间(或次级与次级)
/ k. Z" R+ {. W9 ~# Y7 e5 H% w/ }- W相交45-90度,算是标准说的那个情况吗?
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4. 什么时候变压器次级三层绝缘线前面那段要加绝缘套管?
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