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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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按照UL8750:/ }. V* K) r8 t( ^; W. u
7.7.1 Printed wiring boards shall meet the following criteria:
7 x6 w, N) ~ d' ga) Conductive traces shall be bonded to the substrate for the minimum conductor width and
2 Q {1 M3 K6 I8 ~5 w! hmaximum unpierced area as required by the Standard for Printed-Wiring Boards, UL 796,
2 P# G- X4 q3 m+ MException: Printed-wiring boards that are completely encased in potting compound are permitted
3 t E; K6 t* ~# z2 qto exceed their specified minimum conductor width or maximum unpierced area.
4 r9 k3 C% v, ?0 Z2 Mb) Temperatures measured in the temperature test of 8.3 shall not exceed the temperature
! E+ i8 m5 q# c& ~! C& nrating (RTI) of the substrate as determined by the Standard for Polymeric Materials – Long2 ^7 @6 S5 ~6 v% x/ V/ F L( W
Term Property Evaluations, UL 746B, and
; |& W5 d# O: R! R K9 x$ A0 R& L Vc) Printed wiring board substrate flammability shall be no less than V-1 in accordance with the( T( c3 X6 }2 f) O
Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL
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5 f* t6 Y9 S/ p% IException: A circuit supplied by a Class 2 or LVLE source need not comply.7 T4 p0 u* A K5 u; S6 h* a
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可以看是否满足Exeption 要求。 |
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