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d) 1) For luminaires without drain holes, there shall be no water entry.) v3 B4 k3 n% e/ Z
NOTE Care should be taken not to mistake condensation for water entry.) L0 e4 l8 g( K: Q! y2 J/ Z
2) For luminaires with drain holes, water entry including condensation is allowed during the4 H1 b5 f% H1 g" h- ~$ z( [
tests if it can drain out effectively and provided it does not reduce the creepage and4 t* A% [( }' a3 o
clearance distances below the minimum levels specified in the standard;
7 y* f4 T1 q0 Y+ Q& q, p( s
; T5 q# o9 O8 u/ W) ~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。
7 M- I8 R' H4 H$ e# z) F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;
: \# X- G T' W j从标准上看,你的IP44没问题,凝露水不算进水。 |
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