|
|
songbolove 发表于 2012-2-13 10:31 
# t2 o* Z! K, U8 I* w基本绝缘的供电电线是可以接触安装表面的。
' Z: P2 k6 S4 G5.2.2 Supply cords used as a means of connection to the supply, when supplied by the1 i( T+ X- C3 z4 c3 }9 z
luminaire manufacturer, shall be at least equal in their mechanical and electrical properties to1 G; P2 ~) U# K& T4 J0 p
those specified in IEC 60227 and IEC 60245, as indicated in Table 5.1, and shall be capable of
/ w" ` E F N# Cwithstanding, without deterioration, the highest temperature to which they may be exposed, N) Z& c1 T/ L I
under normal conditions of use.! o, x/ ~: \, {3 b0 E, {0 U% ]
Materials other than polyvinyl chloride and rubber are suitable if the above requirements are5 {6 Z* J. V! |) B6 p$ J) E
met, but in such cases, the particular specifications of part 2 of the above publications do not
1 m+ |2 J- C4 p2 ]& Bapply.8 n8 E' W! A8 m; v6 ]
Table 5.1 – Supply cords
# Q. H- m, R6 U+ m. F/ ~6 D HLuminaire Rubber PVC9 f! h' `1 e! S. [% m* U5 Q
Ordinary class I luminaires 60245 IEC 89 60227 IEC 52
" e* u8 a; k' w- n# d* MOrdinary class II luminaires 60245 IEC 53 60227 IEC 52. l2 U/ e0 ^" E1 Q
Luminaires which are other than ordinary 60245 IEC 57 –9 y: X4 X& E4 D% o0 x! J# T& N0 Q
Portable rough service luminaires 60245 IEC 66 –
9 W. e# C& \; Z6 q$ zNOTE For supply voltages greater than 250 V, higher voltage grade cables and cords than those given in the
+ o O. ]( }" K! ~above table may be necessary.
1 y, g5 K+ J$ n" F. r7 HTo provide adequate mechanical strength, the nominal cross-sectional area of the conductors
7 F! ]* G B2 [ a+ [shall be not less than:
8 M0 M: S# h- r U- y– 0,75 mm2 for ordinary luminaires;
* R. O, A( J$ z4 B– 1,0 mm2 for other luminaires.
9 c1 d8 u# @6 wIf the luminaire is provided with a 10/16 A socket-outlet, the flexible conductor nominal crosssection
' }! e" n k9 O9 p% ?% garea shall be at least 1,5 mm2. |
|
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-2-13 11:22
显身卡
发表于 2012-2-13 12:38
楼主