关于class E

小李子子

原来Class E的马达，目前GS测试后CDF表上为何改成Class 120，请求专业认识解答

qing1234

It's for insulation system,I guess Class E indicates the insulation system is 120 degree celsius....

天使推荐

Class E是绝缘耐热等级分类老的标识方法，Class 120是现在标准规定的标识方法。

以下引自IEC62114：
Thermal class designation Historical designation
90 Y
105 A
120 E
130 B
155 F
180 H
200 200
220 220
250 250

Designation of thermal classes over 250 shall increase by increments of 25 and be designated accordingly.

NOTE The old class C that was used for all temperatures above 180 °C has been replaced by the above thermal classes and is no longer valid.
If desired, the historical designation may be added in parentheses, e.g. class 180(H).

goumtz

都是高手呀，看来要去看看新标准了。

yin168

新老标准的叫法不同

magebao

更新标准了啊

gzsl2009

不说还不知道呢

cunliang1213

标准更新好像没有通知啊~~~~~~~~~