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UL153便携式灯具爬电距离及空气间隙要求可以参考Clause 24.2 _2 Z) U" e) m5 C" J2 I. R
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24.1 The spacing between uninsulated live parts of opposite polarity,and between uninsulated live parts and metal that is capable of being grounded shall not be less than1/4inch(6.4mm)through air or 3/8inch(9.5mm)oversurface.The outer wrap of an open core and coil ballast is determined to be an uninsulated live part with respect to this requirement. |
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