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。 Examples of Class A material are: – impregnated cotton, silk, artificial silk and paper; – enamels based on oleo- or polyamide resins.
Examples of Class E material are: – moldings with cellulose fillers, cotton fabric laminates and paper laminates, bonded with melamineformaldehyde, phenol-formaldehyde or phenol-furfural resins; – cross-linked polyester resins, cellulose triacetate film, polyethylene terephthalate films; – varnished polyethylene terephthalate textile bonded with oil-modified alkyd resin varnish; – enamels based on polyvinyl formal, polyurethane or epoxy resins.
但是Class B and F Insulation System必须满足UL1446。 如果没有UL1446认证,按Class E也只能做到90K。
还有个例外就是: For totally enclosed motors the temperature rise limits for Class A, Class E, and Class B may be increased by 5°C。
请对照确定是哪种绝缘等级。
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