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d) 1) For luminaires without drain holes, there shall be no water entry.2 ^+ X6 j" R9 r: r0 [/ T0 l8 f
NOTE Care should be taken not to mistake condensation for water entry.& F' f5 g( _; d& V0 R8 z5 c
2) For luminaires with drain holes, water entry including condensation is allowed during the' t) b5 Z9 m$ @2 @# ^' D
tests if it can drain out effectively and provided it does not reduce the creepage and
" C9 T" N) g4 i0 I( ]8 bclearance distances below the minimum levels specified in the standard;
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- r: m# t5 \% T& M/ m( K% l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。4 E/ [, D7 |" Z4 n: e5 s$ |
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;
& @. I, f7 b! W- C4 m从标准上看,你的IP44没问题,凝露水不算进水。 |
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