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d) 1) For luminaires without drain holes, there shall be no water entry.4 K, P# `1 g( s
NOTE Care should be taken not to mistake condensation for water entry.3 E% W% `/ V7 L1 {
2) For luminaires with drain holes, water entry including condensation is allowed during the7 L- Z- n, h3 n% k
tests if it can drain out effectively and provided it does not reduce the creepage and, s' T+ I1 p" U& @& ~' d
clearance distances below the minimum levels specified in the standard;7 b7 l- E8 A2 k! e# q
/ {+ l* t) `6 d n+ G# L0 z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。. B, b! q5 P" o! t; {8 e
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;
! _" f4 X) P D; R2 z8 J9 I+ p; K从标准上看,你的IP44没问题,凝露水不算进水。 |
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