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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。
! d( F1 I3 S% ]' ?3 G8 S3 p/ x7 PExamples of Class A material are:+ q+ b4 z8 j# @/ p. W( m5 [
– impregnated cotton, silk, artificial silk and paper;
% {0 V$ f* c2 Q7 r5 `– enamels based on oleo- or polyamide resins.
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0 t: Y j. o8 T' A3 H& G+ Z7 [Examples of Class E material are:6 v4 s# B& H% K6 f& s p+ y% K( H l: ~' ^
– moldings with cellulose fillers, cotton fabric laminates and paper laminates, bonded with melamineformaldehyde,. V* s& v h/ B3 {5 n
phenol-formaldehyde or phenol-furfural resins;
+ b% K- z M3 Q– cross-linked polyester resins, cellulose triacetate film, polyethylene terephthalate films;
( r- T. r2 x! j v– varnished polyethylene terephthalate textile bonded with oil-modified alkyd resin varnish;1 x: p1 z/ V4 x
– enamels based on polyvinyl formal, polyurethane or epoxy resins.& i, i+ m, P- n
0 M8 x) u: v* M- d C. Z但是Class B and F Insulation System必须满足UL1446。
2 K& ^" E, f. K# ]8 q+ {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:7 _; G" W0 i( g3 [. g" r G& R
For totally enclosed motors the temperature rise limits for Class A, Class E, and Class B may be increased by 5°C。
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' b( i7 O4 J6 o( n& V4 n1 [ B7 b7 i请对照确定是哪种绝缘等级。 |
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