UL 1598内部线问题

hanterzhu

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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？

jsspace

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

hanterzhu

jsspace 发表于 2013-11-7 17:36
至少18AWG，请查看第6.9章节
! B; Q! D/ P$ R- k# C& o如果满足6.9.3， 或者6.9.4线径可减少

4 n6 d2 ]# I, @9 W, V" q# M那UL153里面是不是任何线径都可以呢，我看到这样一条：
6 N# v0 a) x& B9 S: GA conductor of a wire or cord shall be minimum 18 AWG (0.82 mm2) except where a smaller size
. F! C* a& g  Zis permitted in (a) – (d) below:
7 D+ v: v+ g3 _' l* Y+ z0 }: ja) Internal wiring is permitted to be of any size provided it is adequately protected against
overload or abnormal conditions by internal fusing and protected against mechanical damage by
1 [4 I$ F3 z5 ^the enclosure, barriers, or routing.
/ {9 Y& e- g7 L) sb) A conductor in a Class 2 circuit shall be minimum 24 AWG (0.21 mm2).
6 f( h  Y# r# \& L/ k) y$ A: H" oc) 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
the clock motor or any abnormal or overload on the transformer secondary does not result in a
risk of fire.
d) Conductors for a series or series/parallel string of non-replaceable lights located within a
rigid housing which prevents moving or flexing of the conductors are permitted to be of any
" a  {! z# v* g+ ?& l1 qsize, 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
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

另外6.9.3和6.9.4说的是要同时满足a，b，c三点是吗？

jsspace

hanterzhu 发表于 2013-11-7 17:55
8 C$ d2 O( h1 q" Z8 z% l7 b另外6.9.3和6.9.4说的是要同时满足a，b，c三点是吗？

2 p5 M/ T6 \' s2 L. K, n+ e- e4 t6.9.3 ，6.9.4 都是 abc三个需要同时满足