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不知道你是什么电动工具,UL745-1分Class A, Class E, Class B, Class F。其中Class A和Class E可以为given in the following examples。
* m2 ~6 Z9 y3 K# b H1 `Examples of Class A material are:
" k$ P; X4 M' U E4 G– impregnated cotton, silk, artificial silk and paper;" _! ~" b y) s, h5 B
– enamels based on oleo- or polyamide resins.; `6 Y6 j. ~% q: }
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Examples of Class E material are:* N; k1 X; o) L. _9 p* F% ~: ~
– moldings with cellulose fillers, cotton fabric laminates and paper laminates, bonded with melamineformaldehyde,4 ]2 l& A. d& w7 ^5 g( E
phenol-formaldehyde or phenol-furfural resins;8 H6 R% `/ E0 n
– cross-linked polyester resins, cellulose triacetate film, polyethylene terephthalate films;* c/ I" }* G, g# q# h; m* N
– varnished polyethylene terephthalate textile bonded with oil-modified alkyd resin varnish;
) ?" f Y Q% L1 ~– enamels based on polyvinyl formal, polyurethane or epoxy resins.! ]7 l/ D) A2 D8 }
3 Z9 d6 A& F7 K* B
但是Class B and F Insulation System必须满足UL1446。
5 L$ _+ [9 w$ W如果没有UL1446认证,按Class E也只能做到90K。
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" M/ {; x7 A5 D( ~' L. h还有个例外就是:( }. n7 C: p& U' O9 V2 N
For totally enclosed motors the temperature rise limits for Class A, Class E, and Class B may be increased by 5°C。) p, q& ?8 j' J
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请对照确定是哪种绝缘等级。 |
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