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songbolove 发表于 2012-2-13 10:31 + w6 h u8 e3 I) t4 o% m- L3 l) c% d/ U
基本绝缘的供电电线是可以接触安装表面的。 ' U8 y5 \2 Y, X+ @
5.2.2 Supply cords used as a means of connection to the supply, when supplied by the
6 l' h% q3 x; O* S0 S" }0 Y* Nluminaire manufacturer, shall be at least equal in their mechanical and electrical properties to
" t5 y$ s' P7 @& C8 ^+ jthose specified in IEC 60227 and IEC 60245, as indicated in Table 5.1, and shall be capable of% C! I; ^& A c3 \
withstanding, without deterioration, the highest temperature to which they may be exposed9 Z1 _; J; F* @/ V6 c
under normal conditions of use., q# C' W1 \1 D- h# R; c. P& o5 A
Materials other than polyvinyl chloride and rubber are suitable if the above requirements are
0 [6 d0 d2 j5 Z4 Y3 k; Hmet, but in such cases, the particular specifications of part 2 of the above publications do not
+ X8 b$ B/ S: ^7 }( R$ [$ g$ x& X9 Rapply.
0 G5 y0 { c- sTable 5.1 – Supply cords
: |% |+ A" _: {5 {; GLuminaire Rubber PVC! S2 r) R6 `+ g
Ordinary class I luminaires 60245 IEC 89 60227 IEC 52- ^, S# w, g4 B( |6 Q2 g5 v1 `
Ordinary class II luminaires 60245 IEC 53 60227 IEC 52
) r4 ~4 [3 X; a6 [2 j" V8 yLuminaires which are other than ordinary 60245 IEC 57 –
$ ~/ A4 A; X1 r7 K" nPortable rough service luminaires 60245 IEC 66 –2 ^- ~2 f- w6 z2 a+ x
NOTE For supply voltages greater than 250 V, higher voltage grade cables and cords than those given in the
0 q6 P9 t, `5 k |/ D* O3 I, nabove table may be necessary.
5 @/ l. o( n; o# T( C& GTo provide adequate mechanical strength, the nominal cross-sectional area of the conductors
- I# a0 B' f- W- [; ~) fshall be not less than:
4 p, v. P$ w; Q( f [' [; k7 b A6 L– 0,75 mm2 for ordinary luminaires;2 M4 F5 G# x# k9 ^3 N6 ?/ O
– 1,0 mm2 for other luminaires.4 y, V/ d2 ?+ @ B: W
If the luminaire is provided with a 10/16 A socket-outlet, the flexible conductor nominal crosssection
+ \0 U9 w9 G. @4 Uarea shall be at least 1,5 mm2. |
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