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d) 1) For luminaires without drain holes, there shall be no water entry.
2 Q' g+ A6 G! N6 g$ [+ cNOTE Care should be taken not to mistake condensation for water entry.
9 ]2 |6 Q8 M! }6 A; f+ Y2) For luminaires with drain holes, water entry including condensation is allowed during the
( l; j) O! C+ u+ T- v: I8 u( `tests if it can drain out effectively and provided it does not reduce the creepage and+ ^+ Z5 y/ C% I6 c1 \
clearance distances below the minimum levels specified in the standard;
* s5 ~% F- P! a, G, H* {
6 k8 T0 C/ x6 f* O6 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。
( a* N$ t2 O. W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; + t* g! `3 e `, U. G* J+ |; r
从标准上看,你的IP44没问题,凝露水不算进水。 |
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