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考虑有三点-------取线三个中线径最大的：
3 _& I, `! K6 i, J1）如果是灯串：7 N) g6 S. j% |
The nominal cross-sectional area of the conductors shall not be less than the following values:' |, X0 C( E8 J" I) @" L' l: y7 g
a) 0,5 mm2 for class II lighting chains with E5 or E10 lampholders or other small lampholders;5 A& P0 g; F2 ?/ w5 \6 V% K
b) 0,75 mm2 for class II lighting chains with E14, E27, B15 or B22 lampholders and fitted with% M8 r0 s; e' |6 q& a- d" h
series connected lamps;0 L3 Z, N* @/ G7 Z5 i& U9 X+ z7 Y
c) 1,5 mm2 for class II lighting chains with E14, E27, B15 or B22 lampholders and fitted with8 o% b5 }* ]4 U5 F+ A2 l) m) h% B( r; y! \
parallel connected lamps;
& c' S8 w* X: Q( ad) 0,5 mm2 for class III chains and parts of chains supplied by SELV and with a maximum
2 E- P' E# u1 trated wattage exceeding 50 W;. u0 i+ J. ]) w& K
e) 0,4 mm2 for class III chains and parts of chains supplied by SELV and with a maximum
, D6 p" H# ~- t8 s& \7 `rated wattage not exceeding 50 W;
6 r0 i2 w. G+ F2 `; {f) 1 mm2 for the cable between the plug and a sealed chain without joints;
, E8 o* l6 t$ A6 Qg) 1,5 mm2 for the cable between the plug and a sealed chain with joints.
9 Y2 v1 l: I7 U9 g) J$ B, h% w) p) I6 n/ q1 F
2）针对吊灯：
+ u+ q7 y4 j5 k+ d) p– 0,75 mm2 for ordinary luminaires;
" e2 u" z g- V* u% c2 }– 1,0 mm2 for other luminaires.# o3 W# n1 m, m" w
, r; c+ b/ ^0 d9 g3）考虑电流，可以百度一下 （考虑线径和电流之间的对应关系） |
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发表于 2011-11-14 10:07
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