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黄卡里没有这个厚度你认为是UL通过了认证满足UL 796要求吗?
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, A1 N3 ~7 o ]7 | X @8 h按照UL8750:
, I5 `- i0 A/ i7.7.1 Printed wiring boards shall meet the following criteria:
1 z2 k6 q. |* t& r$ t+ Qa) Conductive traces shall be bonded to the substrate for the minimum conductor width and$ w9 E/ m& g X: b: Y v6 g
maximum unpierced area as required by the Standard for Printed-Wiring Boards, UL 796,
* l$ i8 z1 E( U. FException: Printed-wiring boards that are completely encased in potting compound are permitted; ]) g. |$ K* h; [3 U$ Z- @+ ?
to exceed their specified minimum conductor width or maximum unpierced area.! A- L* H1 B# L% y/ U
b) Temperatures measured in the temperature test of 8.3 shall not exceed the temperature# f$ m; x4 |- R% C- W
rating (RTI) of the substrate as determined by the Standard for Polymeric Materials – Long
+ I- d1 L# ~8 n% o gTerm Property Evaluations, UL 746B, and# A4 c+ L2 m2 h1 N- T1 Q2 @! L
c) Printed wiring board substrate flammability shall be no less than V-1 in accordance with the- R u K; @' A6 H7 n/ d9 ~1 k
Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL
& p$ Y0 |% u& v% t94.
7 `3 {1 E! A$ k/ eException: A circuit supplied by a Class 2 or LVLE source need not comply.
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可以看是否满足Exeption 要求。 |
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