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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。
( |! P6 _- w/ j0 _( K: Y" Q% g; HExamples of Class A material are:
" D% t- u1 `; t9 n, S$ S% p3 U; n– impregnated cotton, silk, artificial silk and paper;
3 y/ c$ O7 t- @1 W9 [, H– enamels based on oleo- or polyamide resins.
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Examples of Class E material are:9 a/ d2 _6 f, x9 i% B j$ I0 u
– moldings with cellulose fillers, cotton fabric laminates and paper laminates, bonded with melamineformaldehyde,
0 a4 Z5 g& N3 Pphenol-formaldehyde or phenol-furfural resins;
( N8 S: i, G6 B* G– cross-linked polyester resins, cellulose triacetate film, polyethylene terephthalate films;0 d$ O H2 a! E2 m' t' z' m
– varnished polyethylene terephthalate textile bonded with oil-modified alkyd resin varnish;
+ Q h5 E, R5 c! X5 N% u– enamels based on polyvinyl formal, polyurethane or epoxy resins.# b$ k& G$ V* ^
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但是Class B and F Insulation System必须满足UL1446。9 P+ S( a# t% M
如果没有UL1446认证,按Class E也只能做到90K。' |3 X$ {4 J% K
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还有个例外就是:2 _. ^9 X9 K$ f" o1 |; c* V7 x: y
For totally enclosed motors the temperature rise limits for Class A, Class E, and Class B may be increased by 5°C。, `7 [+ D) |7 X! C! d/ q( T7 H' K
6 p4 N3 q! Q0 M请对照确定是哪种绝缘等级。 |
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