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:
% W, J3 D3 K. h- k(e) a polymeric material that complies with Clause 5.7.1.6.
& }1 d( N# l- ^* z) P- ^* o% B5.7.1.6 A polymeric material used as a barrier shall:
, ]/ m6 ~/ P/ d( J) q(a) have a minimum HB flammability rating or comply with the horizontal burning flame test of
Clause 16.25;
(b) have a temperature rating equal to or greater than its maximum operating temperature in
" o# Z# f& H2 {5 n& M- Kthe luminaire;
(c) for molded or formed thermoplastic parts, comply with the mold stress-relief test of Clause
16.4; and
# h6 t+ R% {# s, I! t(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.

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lyjian 发表于 2012-8-28 09:22
" a5 B& P3 M# r/ l2 l% }- c5 E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， ...

6.1.1 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.
7.1.1 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.
+ u8 o3 o8 W; g
5 ^' i8 U+ a% E  l6 y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。

linbaoshi

fasten 发表于 2012-8-28 10:01
6.1.1 A unit intended to be used in an application identified by one of the standards specified in ...

; y* P( _) h9 \4 I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
6.1.1 A unit intended to be used in an application identified by one of the standards specified in ...

: O" n2 @( j+ X5 \* g6 @. J( s
+ i' N3 b1 R$ G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