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d) 1) For luminaires without drain holes, there shall be no water entry.
5 H8 C5 G# i" S. f. ]! WNOTE Care should be taken not to mistake condensation for water entry.
! v; o3 _1 N1 s2) For luminaires with drain holes, water entry including condensation is allowed during the
% B. R5 I0 n Q! C3 Z5 k( @2 W! y0 b, mtests if it can drain out effectively and provided it does not reduce the creepage and! ~( T6 S. Y- @+ ~3 E, e" J6 s) |: g
clearance distances below the minimum levels specified in the standard;4 W/ x7 i4 H! B E( l$ X4 J8 b
4 l4 f' {( G0 h9 V2 E" g) s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。
' ^- Z- m6 U6 ?2 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; 6 _) J4 U! x4 D: n/ d' x6 r4 V
从标准上看,你的IP44没问题,凝露水不算进水。 |
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