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d) 1) For luminaires without drain holes, there shall be no water entry.4 R6 j3 O \& s2 C: H) E( Q
NOTE Care should be taken not to mistake condensation for water entry.
}) [0 M% Q( W3 N o* T2) For luminaires with drain holes, water entry including condensation is allowed during the
% N. X! S2 u4 D O: Otests if it can drain out effectively and provided it does not reduce the creepage and
9 p# o7 d" f7 }+ q) [clearance distances below the minimum levels specified in the standard;
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; q" e$ V% m, I% I" e/ x/ e3 A如果没有排水孔,不能有任何水进入灯具内部,应注意不要将凝露误认为是进水。! m7 C7 O" Q- U3 |$ o5 s
如果灯具内带有排水孔且水可以有效的排出,不会使爬电距离和电气间隙发生改变。水的进入包括凝露水是允许存在的; : \3 h3 v' p. t) `" Y
从标准上看,你的IP44没问题,凝露水不算进水。 |
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