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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。
( B" J/ M L& u9 g; x0 t3 _" @Examples of Class A material are:
$ M' ?$ ]) V# E– impregnated cotton, silk, artificial silk and paper;
" E) l- H. G: }– enamels based on oleo- or polyamide resins.
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Examples of Class E material are:" x& L( q0 `9 A$ J& g
– moldings with cellulose fillers, cotton fabric laminates and paper laminates, bonded with melamineformaldehyde,
2 t* S7 F. e: Z G ?6 g: \6 `phenol-formaldehyde or phenol-furfural resins;( h4 H9 o1 D) o5 J3 d7 ]7 V( M0 n
– cross-linked polyester resins, cellulose triacetate film, polyethylene terephthalate films;
* ]% e7 T9 ?# V! j9 W) n– varnished polyethylene terephthalate textile bonded with oil-modified alkyd resin varnish;
8 W1 J5 h* H7 |– enamels based on polyvinyl formal, polyurethane or epoxy resins.
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$ }( J- S2 b+ S: u( U- v2 R* d但是Class B and F Insulation System必须满足UL1446。
- G2 M' j3 e o l如果没有UL1446认证,按Class E也只能做到90K。& d: E/ T9 l; H
, O; I9 o% K* L' u还有个例外就是:
: O2 R8 v9 @, s: n6 OFor totally enclosed motors the temperature rise limits for Class A, Class E, and Class B may be increased by 5°C。' a' v5 h1 ~6 h' ^+ P
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请对照确定是哪种绝缘等级。 |
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