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songbolove 发表于 2012-2-13 10:31  ' C1 P& U2 }' D& P3 f
基本绝缘的供电电线是可以接触安装表面的。
3 i0 I# L, o/ x2 ~5 F9 T5.2.2 Supply cords used as a means of connection to the supply, when supplied by the
, C' X }8 I" J# Bluminaire manufacturer, shall be at least equal in their mechanical and electrical properties to* U2 G( D) M" l" G }2 w) `
those specified in IEC 60227 and IEC 60245, as indicated in Table 5.1, and shall be capable of2 C# p) o8 Z. s8 o
withstanding, without deterioration, the highest temperature to which they may be exposed- \, P" ^5 i# ~- w& e
under normal conditions of use.
. V5 s5 F! O1 [ BMaterials other than polyvinyl chloride and rubber are suitable if the above requirements are( \# c3 \, w4 R Q2 N* v* x, m7 x: F
met, but in such cases, the particular specifications of part 2 of the above publications do not% v4 e$ |4 r( ~8 L) H
apply.
$ |4 g, C4 ~4 g' r/ S7 }: u/ STable 5.1 – Supply cords
6 W: Q# @8 f k6 U& f5 r; tLuminaire Rubber PVC
. l; b. t! Z" b) \: d7 q6 ?Ordinary class I luminaires 60245 IEC 89 60227 IEC 52' K$ y$ y4 M H! ~1 T( ]
Ordinary class II luminaires 60245 IEC 53 60227 IEC 52
# j& e: H, s" ]+ L2 sLuminaires which are other than ordinary 60245 IEC 57 –) R' A* |! u- E2 y
Portable rough service luminaires 60245 IEC 66 –! g: S: l( D' j8 d$ A) x
NOTE For supply voltages greater than 250 V, higher voltage grade cables and cords than those given in the
2 C) h- {6 W3 q) ]& mabove table may be necessary.
* h5 ^0 N9 |. V& [, R# r3 ~To provide adequate mechanical strength, the nominal cross-sectional area of the conductors
3 i. V5 c9 d- [8 w7 N& @5 [; eshall be not less than:
& l' `# ~. I4 w( f– 0,75 mm2 for ordinary luminaires;
8 Z" o, ]0 t* ?+ V7 p– 1,0 mm2 for other luminaires.2 @+ g# ?0 B! u2 V( V# {8 G3 }/ i& E
If the luminaire is provided with a 10/16 A socket-outlet, the flexible conductor nominal crosssection
2 l& b% o- v# U9 o) T# Yarea shall be at least 1,5 mm2. |
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