|
d) 1) For luminaires without drain holes, there shall be no water entry.
0 w+ _+ f) ^ ~2 H! Z' r: wNOTE Care should be taken not to mistake condensation for water entry.
4 |& M7 M9 g6 F" C$ _( Y) Y2) For luminaires with drain holes, water entry including condensation is allowed during the
: G0 c. F. K" z6 S* Jtests if it can drain out effectively and provided it does not reduce the creepage and4 k5 c7 D; P# _2 k. {& U: ^6 M A3 ?
clearance distances below the minimum levels specified in the standard;" b7 C6 N: P5 W* r) l/ b
9 q( ?5 ~2 q6 M9 c
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。" Y4 r. K8 [6 ]0 A$ I
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;
4 B/ {8 s+ M. I0 T0 D8 [+ k从标准上看,你的IP44没问题,凝露水不算进水。 |
|