UL 1598内部线问题

hanterzhu

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

请教固定式灯具内部线线径有要求吗，好像1598只提到外部线的要求，具体在哪一章节里呢？
! @% _4 W5 y; f

hanterzhu

jsspace 发表于 2013-11-7 17:36
/ U! H1 }3 A, F1 `至少18AWG，请查看第6.9章节
4 [! H4 t. X; ?如果满足6.9.3， 或者6.9.4线径可减少

. c7 [, S: g- a# Z0 n4 Z. ~( Y那UL153里面是不是任何线径都可以呢，我看到这样一条：
A conductor of a wire or cord shall be minimum 18 AWG (0.82 mm2) except where a smaller size
/ \2 {7 z0 a4 E( h9 \* `- C0 f; h& Pis permitted in (a) – (d) below:
a) Internal wiring is permitted to be of any size provided it is adequately protected against
( K! o. C( C9 s! W" eoverload or abnormal conditions by internal fusing and protected against mechanical damage by
the enclosure, barriers, or routing.
b) A conductor in a Class 2 circuit shall be minimum 24 AWG (0.21 mm2).
c) A permanently attached, completely enclosed, and maximum 6-inch (152-mm) long lead wire
for a clock motor or transformer shall be minimum 24 AWG (0.21 mm2), provided that stalling of
6 [( ~4 Q  a; ^/ h+ cthe clock motor or any abnormal or overload on the transformer secondary does not result in a
( ^: N5 |. U* ^, x. w3 p, b" `; M' yrisk of fire.
& o% S! r0 i( t/ T4 ]  gd) Conductors for a series or series/parallel string of non-replaceable lights located within a
9 V8 h+ w" s8 d0 {: j+ ?& Wrigid housing which prevents moving or flexing of the conductors are permitted to be of any
size, provided that the portable luminaire complies with the Conductor Short Circuit and
Abnormal Operation Test, Section 131A.

hanterzhu

jsspace 发表于 2013-11-7 17:36
& F& s9 s1 m! i0 G2 r! V4 y至少18AWG，请查看第6.9章节
如果满足6.9.3， 或者6.9.4线径可减少

4 h2 V/ i0 c3 M+ ^另外6.9.3和6.9.4说的是要同时满足a，b，c三点是吗？