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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:) ?& W% B2 K' P' v. z9 ]* a9 L5 M
29.3.1 The thickness of the insulation shall be at least1 x/ J1 r2 Y3 w+ o$ p# X/ K, ?
– 1 mm for supplementary insulation;
% n+ C) C, {, u3 r0 |# i– 2 mm for reinforced insulation.- D9 R, Z& J" L, L2 g, C% L
% Z, e6 n4 m" M% v- \& z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:
' {8 a. F' `/ _$ C21.2 Accessible parts of solid insulation shall have sufficient strength to prevent# ]2 ]* S, j3 T% [' y, `- [/ }) H
penetration by sharp implements.5 `; e, I) y" {2 A; ^- o3 m& |
Compliance is checked by subjecting the insulation to the following test, unless the thickness
- R6 Z4 N8 T! Cof supplementary insulation is at least 1 mm and that of reinforced insulation is at least 2 mm.# H! a0 g; z" y- ]+ R" K: S! L
- E% J# @/ u; E: q5 R+ A, `9 u
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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