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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.% Z0 z1 y- v* |3 U, D: h# V
! s, Z# q) ?: L* \" ^+ c. O& F24 Electrical Spacings
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- N8 X$ @) j! C9 L) p3 Q" F24.1 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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