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A live part and a dead metal part that is able to be grounded, the spacing shall not be less* W; C6 S+ k. {
than 3/64 inch (1.2 mm) between the isolated dead metal part and any one of the other parts; X" K, b; {* ?, H/ n
previously mentioned, provided the total spacing between the isolated dead metal part and the/ e+ u ^ J. A' P, L( e/ q, y1 k
two other parts is not less than 1/4 inch (6.4 mm) through air or 3/8 inch (9.5 mm) over surface.
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准备做一个UL153灯具,对电气距离的例外2要求,真心搞不懂,几个同事讨论下,结果还是不明朗,有专家解释下上面这段话到底是什么意思啊? |
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