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songbolove 发表于 2012-2-13 10:31 ) z+ P+ l; A9 q
基本绝缘的供电电线是可以接触安装表面的。
' R" I/ i8 p5 P K5 S" |- J5 V. C5.2.2 Supply cords used as a means of connection to the supply, when supplied by the* Y+ o/ k% l8 v1 V. D5 W9 _% M- n
luminaire manufacturer, shall be at least equal in their mechanical and electrical properties to$ q6 V9 R0 r/ y4 A3 h( A/ F* a6 [
those specified in IEC 60227 and IEC 60245, as indicated in Table 5.1, and shall be capable of
5 _, w- ]. H+ {7 \) B( iwithstanding, without deterioration, the highest temperature to which they may be exposed
* {, S$ g x5 Z. X. sunder normal conditions of use.
3 D$ M' N# J6 ~Materials other than polyvinyl chloride and rubber are suitable if the above requirements are! \# I8 C1 V5 u: [3 O" ]- T( C
met, but in such cases, the particular specifications of part 2 of the above publications do not9 f, e$ F2 U1 E; j; Q8 X5 B
apply.6 X4 E* J* b ^
Table 5.1 – Supply cords
6 {& X) l$ G2 D0 N9 gLuminaire Rubber PVC
$ ^: Y( }0 g$ \: ]9 m6 T, dOrdinary class I luminaires 60245 IEC 89 60227 IEC 52
+ O n t; v N* @Ordinary class II luminaires 60245 IEC 53 60227 IEC 52$ \, T8 s- B: e. [
Luminaires which are other than ordinary 60245 IEC 57 –0 H7 d9 Y" D5 f9 N+ V
Portable rough service luminaires 60245 IEC 66 –7 E+ \6 p4 I' l7 v2 ~8 b
NOTE For supply voltages greater than 250 V, higher voltage grade cables and cords than those given in the
& ?9 K0 J+ l6 b9 s- S6 g" c! g" Nabove table may be necessary.. r& s* w0 g% P1 N2 {" T4 x
To provide adequate mechanical strength, the nominal cross-sectional area of the conductors- ~, z5 v2 f+ Q7 d' D# M
shall be not less than:
" A1 C9 ?5 U, @# F2 v! ^– 0,75 mm2 for ordinary luminaires;
& ^0 ]$ J8 J7 @$ r9 R \- O+ j– 1,0 mm2 for other luminaires.0 t% `9 x1 l; ?( R- `. V
If the luminaire is provided with a 10/16 A socket-outlet, the flexible conductor nominal crosssection
6 H! s/ h# q* _/ garea shall be at least 1,5 mm2. |
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