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UL60950:+ v+ h3 m, M( s
Where two winding wires, or one winding wire and another wire, are in contact inside the wound
' O* K, |5 A/ X5 u" }; Y4 r% J# `( e: Ccomponent, crossing each other at an angle between 45° and 90° and subject to winding/ J( e8 B- }/ r; g
tension, protection against mechanical stress shall be provided. This protection can be4 [" I! Z. C4 u: K9 A/ c
achieved, for example, by providing physical separation in the form of insulating sleeving or# q9 P5 E3 D2 a3 x
sheet material, or by using double the required number of insulation layers.
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where two insulated wires or one bare and one insulated wire are in contact inside a wound' f- N- ^: r& L$ Q$ B% X2 P1 I$ v
component, crossing each other at an angle between 45° and 90° and subject to winding) I7 U" h4 l7 ~$ v8 S, n& s4 q# o
tension, protection against mechanical stress shall be provided. The protection can be achieved
# k* l$ P! ?! kby one of the following:0 E) @! ]0 A7 ^. ~6 N
• physical separation in the form of insulating sleeving or sheet material or using double
' k; v) R" L' U0 N- |the required number of insulation layers, or the wound component meets the requirements of 8.18.9 U; y. e% ^# E% k' E# O
– the manufacturer shall demonstrate that the wire has been subjected to 100 % routine7 u" _3 Y7 I+ U( b9 F: H2 k
dielectric strength test as specified in H.3.
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' Y& ?; ^3 P2 r& r5 W) Y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?& c* r9 W0 b+ x# ` R6 G: a" x( {
" _) _* K$ g; ?" a7 y1 I' o 2. 初级线要加绝缘套管吗?或加marign tape 吗?; b* Y- \9 T7 U h' Z; v4 }4 L, `
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3. 初级与初级间(或次级与次级)
* X. I! X, ~0 `, I W相交45-90度,算是标准说的那个情况吗?# Q" g! G, G4 Y9 F, }
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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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