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d) 1) For luminaires without drain holes, there shall be no water entry.
/ H$ j, |; t# [8 uNOTE Care should be taken not to mistake condensation for water entry.% N" [. j$ e3 E
2) For luminaires with drain holes, water entry including condensation is allowed during the! D8 y8 p T8 Y% K' B: w! b$ ~$ _! d7 a
tests if it can drain out effectively and provided it does not reduce the creepage and
. N- B5 ?* P* oclearance distances below the minimum levels specified in the standard;
& m8 s1 G$ a, ]5 ^: N& T) ? |/ l2 ?- ]" I# i1 d$ w3 v9 m" q
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。) r# ^. m( F2 t3 f+ X: A- ]
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;
$ p% q5 v" S y/ j' J1 s9 z O从标准上看,你的IP44没问题,凝露水不算进水。 |
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