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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。 + a# k! v6 v- d$ R
Examples of Class A material are:6 u- z) M3 l3 ]2 p
– impregnated cotton, silk, artificial silk and paper;
; H* T1 k: A1 T! K" [( `4 g– enamels based on oleo- or polyamide resins./ U2 ?, u& y1 s/ b
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Examples of Class E material are:0 }* x; Z( {5 o5 s7 k* X: [
– moldings with cellulose fillers, cotton fabric laminates and paper laminates, bonded with melamineformaldehyde,
5 `0 A! P1 y7 j N# ^ ]; Cphenol-formaldehyde or phenol-furfural resins;
8 U4 B; j% g7 ~– cross-linked polyester resins, cellulose triacetate film, polyethylene terephthalate films;
# X* x9 ^; z& x3 n3 t– varnished polyethylene terephthalate textile bonded with oil-modified alkyd resin varnish;# ]( J) F2 a1 i, e5 Z
– enamels based on polyvinyl formal, polyurethane or epoxy resins.5 @" g+ X% n( T6 [' M) ]
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但是Class B and F Insulation System必须满足UL1446。
8 `3 M0 Q; ?# L/ O7 z如果没有UL1446认证,按Class E也只能做到90K。
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还有个例外就是:
3 Q9 w" j8 d" K0 z( H# FFor totally enclosed motors the temperature rise limits for Class A, Class E, and Class B may be increased by 5°C。; H8 g) {8 u5 f- O$ Q5 y
6 V% C) j$ r; x! F请对照确定是哪种绝缘等级。 |
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