|
|
考虑有三点-------取线三个中线径最大的：* {- y$ T& h. E& [0 O- i0 N C
1）如果是灯串：
6 ~2 a/ T- H' d0 `5 z+ fThe nominal cross-sectional area of the conductors shall not be less than the following values:- ^: C# N Y5 {
a) 0,5 mm2 for class II lighting chains with E5 or E10 lampholders or other small lampholders;
/ _& P5 c6 {% sb) 0,75 mm2 for class II lighting chains with E14, E27, B15 or B22 lampholders and fitted with
( F) M+ A" v# W6 S: \; oseries connected lamps;( A4 ? ?$ l0 A# a. ~% `$ \
c) 1,5 mm2 for class II lighting chains with E14, E27, B15 or B22 lampholders and fitted with
+ ^/ y: }' x4 {& kparallel connected lamps;
! L/ ~& i4 Y3 W) `d) 0,5 mm2 for class III chains and parts of chains supplied by SELV and with a maximum, @9 d0 \1 U1 k J% T+ }! q
rated wattage exceeding 50 W;9 N, q. x$ l+ }3 |
e) 0,4 mm2 for class III chains and parts of chains supplied by SELV and with a maximum) p1 i6 x3 Z) u" H1 h
rated wattage not exceeding 50 W;
1 F) Y# H) s, y, i0 g# ^6 Uf) 1 mm2 for the cable between the plug and a sealed chain without joints;
7 m9 P- P1 ~ M4 pg) 1,5 mm2 for the cable between the plug and a sealed chain with joints.' p& E" _3 n7 z* t: Z9 \
7 a. }, @4 O6 Y' f" M9 F1 w0 m
2）针对吊灯：+ T" c0 A+ y# p; t; I5 t3 e+ ?
– 0,75 mm2 for ordinary luminaires;) b' A3 J5 Q ]6 p' @1 a# O
– 1,0 mm2 for other luminaires.. V3 D. r# k8 A: _. }5 Z0 u- y4 [
' }: M1 q4 O$ Q u7 N3）考虑电流，可以百度一下 （考虑线径和电流之间的对应关系） |
|
/2 
|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 2011-11-14 10:07
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
楼主