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引用第3楼hncjy365于2009-01-06 10:34发表的 :
0 P% e* f8 L/ J2 Z) M0 P, MLZ的此款带风扇取暖器是属于污染等级为3级的产品,按60335表17基本绝缘的最小爬电距离的要求是4mm,但注1中有绕组漆包线的爬电距离不必在于表16基本绝缘的最小电气间隙的要求(1.5mm).
2 _ ?* {8 ~: j+ H7 N9 @所以应符合电气间隙和爬电距离的要求 29.1 !Clearances shall not be less than the values specified in Table 16, taking into account the rated impulse voltage for the overvoltage categories of Table 15, unless, for basic insulation and functional insulation, they comply with the impulse voltage test of Clause 14. However, if the construction is such that the distances could be affected by wear, by distortion, by movement of the parts or during assembly, the clearances for rated impulse voltages of 1 500 V and above are increased by 0,5 mm and the impulse voltage test is not applicable. 故马达绕组与接地金属的爬电距离为:1.5+0.5=2.0mm.故楼主的产品已符合安规. |
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