UL1598 对 Barrier 的厚度要求

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5.4.1 A barrier shall be constructed of one of the following:
" h* }* `" b" q! I4 T& {(e) a polymeric material that complies with Clause 5.7.1.6.
5.7.1.6 A polymeric material used as a barrier shall:
5 ^& [8 v- `" \/ R0 Z2 L) h(a) have a minimum HB flammability rating or comply with the horizontal burning flame test of
+ u8 R5 |5 _! L6 _; [+ pClause 16.25;
, _" W  E' M0 U; j$ _' m(b) have a temperature rating equal to or greater than its maximum operating temperature in
/ C6 c& V& _% ?! ethe luminaire;
: i# ~, X) \! x! @" [4 I  E(c) for molded or formed thermoplastic parts, comply with the mold stress-relief test of Clause
6 Y3 h# u0 m. c6 O* S4 h0 D: M16.4; and
(d) comply with the barrier strength test of Clause 16.1.

根据以上条文，是没有规定厚度但是需要满足测试要求。UL要求你满足0.71mm的厚度要求可能是还有其他条款需要满足。

kevin245

謝謝前輩, 長知識了.

fasten

lyjian 发表于 2012-8-28 09:22
谢谢，另外一个问题，我们这款是LED产品，标准主要参考UL1598和UL8750，如果两个标准对某一参数有冲突时， ...

1 N$ k( S& S/ p# c4 d: {% u6.1.1 A unit intended to be used in an application identified by one of the standards specified in 1.3 shallcomply with the mechanical construction requirements of that standard. If an end-use application is not specified or identified, or if a particular construction feature is not covered by the identified standard, the unit shall comply with the mechanical construction requirements of this section.
9 b+ ~$ |# e9 v% a, [- p  d7.1.1 A unit intended to be used in an application identified by one of the standards specified in 1.3 shall comply with the electrical construction requirements of that standard. If an end-use application is not specified or identified, or if a particular construction feature is not covered by the identified standard, the unit shall comply with the electrical construction requirements of this section.
/ Q) P: j' e- ?1 `
  M' }. J/ t5 {# I请参考UL8750这两段条款，意思是如果UL1598等标准没有规定或者要求不一样，UL8750的机械、电气要求必须满足。也就是执行最严格的标准要求。
: n" X  ?* w* Q

linbaoshi

fasten 发表于 2012-8-28 10:01
; ]% z2 {  e/ e3 n6.1.1 A unit intended to be used in an application identified by one of the standards specified in ...

  P; v7 b8 Y9 p! P6 |误解？应该理解为如果最终产品的标准没有要求的结构，必须要符合这本标准？

hzj101988

UL 8750对挡板的要求为0.71mm

jsspace

fasten 发表于 2012-8-28 10:01
1 [; V! ]9 V7 a5 S- A; K  p, ~6.1.1 A unit intended to be used in an application identified by one of the standards specified in ...

" p: {+ a) }5 B9 T" `/ v2 c' u+ u: X' b这句话的意思是，成品标准上没有覆盖到的，以8750为准。如果产品标准有提到的，以成品标准为准