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songbolove 发表于 2012-2-13 10:31  \2 h* ^( E6 ?8 q; Q
基本绝缘的供电电线是可以接触安装表面的。
5.2.2 Supply cords used as a means of connection to the supply, when supplied by the
1 J4 _# d; h4 a. \luminaire manufacturer, shall be at least equal in their mechanical and electrical properties to
& [& F( h" f9 P* |+ Gthose specified in IEC 60227 and IEC 60245, as indicated in Table 5.1, and shall be capable of6 ^/ p6 Z: e# c! z
withstanding, without deterioration, the highest temperature to which they may be exposed
$ |3 N& j# E6 r0 P" v, J$ ?6 N5 Gunder normal conditions of use.
6 _" e9 S/ i. t' c, r, }Materials other than polyvinyl chloride and rubber are suitable if the above requirements are$ d- P3 c0 {( r; N! |( F
met, but in such cases, the particular specifications of part 2 of the above publications do not7 f. O& @0 R& C9 ?) `9 c; `
apply.# z+ E/ F3 D( i0 b/ y# J
Table 5.1 – Supply cords
$ g ^- }5 Z; ^- u- w" vLuminaire Rubber PVC/ S% Z+ d' b1 ~
Ordinary class I luminaires 60245 IEC 89 60227 IEC 526 U2 Y, g5 t4 R; E; |6 H
Ordinary class II luminaires 60245 IEC 53 60227 IEC 52" L! i8 I0 |5 a5 D' B9 x
Luminaires which are other than ordinary 60245 IEC 57 –
; }9 X2 ^" w+ a: V* ZPortable rough service luminaires 60245 IEC 66 –
( B* S8 L' u0 q! E QNOTE For supply voltages greater than 250 V, higher voltage grade cables and cords than those given in the% j6 Q$ q9 J' u' f' q6 u( \) L8 ^* X
above table may be necessary. Q; y+ H2 W% L, E" @8 W/ ^
To provide adequate mechanical strength, the nominal cross-sectional area of the conductors
1 @" G, [; O q: ?5 F( }/ ~shall be not less than:/ V) U0 H9 ]$ {1 [/ [
– 0,75 mm2 for ordinary luminaires;
6 `: o, V: [) T* O+ _– 1,0 mm2 for other luminaires.
1 \4 q( J9 Q# Q3 J. H. PIf the luminaire is provided with a 10/16 A socket-outlet, the flexible conductor nominal crosssection% l- ^' k# K* n: C8 y k& u% R+ }' S
area shall be at least 1,5 mm2. |
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