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9.2.2 Dust-tight luminaires (first characteristic IP numeral 6) are tested in accordance & p) k, V! ^5 `/ A2 [# [
with 9.2.1.
! t0 q/ m. E d/ p, i1 Wa) no deposit of talcum powder in dust-proof luminaires, such that, if the powder were
3 g2 h' W4 Q6 ?0 qconductive, the insulation would fail to meet the requirements of this standard;
! A4 }; H; v% ?- t4 H3 g9 _6 pb) no deposit of talcum powder inside enclosures for dust-tight luminaires;
x! g K2 T9 ~5 M1.外壳开孔有粉尘沉积到里面会影响到电气间隙吗?
5 \1 K: @* U# k* ~4 q$ K2.散热孔里面的线就当做外部线处理,因为内部电线会接触到水和粉尘,所以不能用普通线。请看60598-1第五章表5.1.3 W5 W' l8 p5 W" Q6 d+ p5 f$ C: q
Luminaires which are other than ordinary 内部线要用 60245 IEC 57
5 A! r$ s: D7 f% k5 [2 ^& @4 A [+ A5 U& M0 `" b7 o
+ x- O( k$ _2 O. T& ]* E1 D
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