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d) 1) For luminaires without drain holes, there shall be no water entry.
6 b( k/ B+ i) L4 C. mNOTE Care should be taken not to mistake condensation for water entry.
% Y$ A. s/ S- ?1 U# X2) For luminaires with drain holes, water entry including condensation is allowed during the
2 L/ i9 v, M5 Ptests if it can drain out effectively and provided it does not reduce the creepage and
& w. I' R1 Z$ L, s4 iclearance distances below the minimum levels specified in the standard;6 N3 E; Q# f* r+ C% }! v6 }/ G
1 X; G% {8 v6 Y: v6 d& V1 }. K0 x
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。
1 S' C1 ] a- C$ p, `* v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;
- A/ |: d& W! q0 \* d' s5 w从标准上看,你的IP44没问题,凝露水不算进水。 |
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