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d) 1) For luminaires without drain holes, there shall be no water entry., `% n6 A( ?3 \4 A& U
NOTE Care should be taken not to mistake condensation for water entry.9 v1 X0 X/ W( V, C/ U! `/ p/ d5 K8 D
2) For luminaires with drain holes, water entry including condensation is allowed during the
/ }. P9 K& s5 K! Jtests if it can drain out effectively and provided it does not reduce the creepage and
" f1 c5 P5 c' N/ U- u/ @) Hclearance distances below the minimum levels specified in the standard;
& Q O/ h, ~# ~& k% g! |6 W" R2 }
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。
# c" w9 g! V/ p: c' g! \. {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;
1 f7 r$ W+ J2 N9 L4 X# Q- _6 g+ y从标准上看,你的IP44没问题,凝露水不算进水。 |
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