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首先,如果是二类器具,那么可接触外壳需符合双重绝缘或加强绝缘(绝缘漆恐怕厚度不够),绝缘厚度要求如下:# s% R7 ?, N B3 `5 X* U
29.3.1 The thickness of the insulation shall be at least, m7 L) |1 l |
– 1 mm for supplementary insulation;
$ Z3 G/ }' ?, F1 u9 Z" @5 ]" l+ @– 2 mm for reinforced insulation.
9 e% m1 m, z! W, y8 r/ P9 V4 @: P( N( l0 O
另外如果可接触绝缘外壳附加绝缘满足1mm或者加强绝缘满足2mm则不用做刮擦测试,见标准如下:% { h9 c% F. M6 \0 h
21.2 Accessible parts of solid insulation shall have sufficient strength to prevent
- A" w8 X% e7 L# m1 Zpenetration by sharp implements.3 i1 y% W6 Y& m8 S; w# d$ H
Compliance is checked by subjecting the insulation to the following test, unless the thickness
( x/ s h9 J5 `$ Y7 mof supplementary insulation is at least 1 mm and that of reinforced insulation is at least 2 mm.
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% T! n0 o1 O* _8 H$ n6 ]如果确实厚度满足要求(这种情况很少见),则按二类器具打高压和测漏电流 |
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