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UL60950:
4 m8 ]+ k4 }5 L( i$ ^+ {Where two winding wires, or one winding wire and another wire, are in contact inside the wound* P' \+ z6 R1 h2 u4 j! u7 ^) T. S2 y
component, crossing each other at an angle between 45° and 90° and subject to winding
5 s: L0 [- W4 _+ B5 p( i$ Xtension, protection against mechanical stress shall be provided. This protection can be
& ?. m3 t6 E6 H) r, t) q7 W; W% H/ V3 p: oachieved, for example, by providing physical separation in the form of insulating sleeving or
. D" p; J9 q# Q+ y5 Isheet material, or by using double the required number of insulation layers.; i9 C `% n e. b' O0 |" E, @
& N! U( \$ [' Q- V& F; f0 | XUL60065
4 n. p9 u: {7 V1 n( [; i( ]; O where two insulated wires or one bare and one insulated wire are in contact inside a wound
# g! n3 I% G8 l+ d+ H6 k3 t2 |component, crossing each other at an angle between 45° and 90° and subject to winding; c& h- O" L E6 B
tension, protection against mechanical stress shall be provided. The protection can be achieved
X5 k/ Y' Z! c7 K8 ~" H; ^0 [5 q, Bby one of the following:
* Z/ x7 M" X3 b! p; q+ g• physical separation in the form of insulating sleeving or sheet material or using double
9 k% A7 G/ X" ]$ x; vthe required number of insulation layers, or the wound component meets the requirements of 8.18.& D8 x) S k. f
– the manufacturer shall demonstrate that the wire has been subjected to 100 % routine' Z6 v/ U% i5 @: y* L3 v' m( Y# j
dielectric strength test as specified in H.3.) }0 }& k- C) a$ ]7 U7 g
4 d7 T# m( ^, I( [4 I) b
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?! S' c7 ?# G9 p+ g1 Y
+ o7 w9 |+ z- G1 W 2. 初级线要加绝缘套管吗?或加marign tape 吗?
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3. 初级与初级间(或次级与次级)
* J" F3 c j* ~. u0 d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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