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你再往下找下关于barrier,其实就能找到了,HB当然是可以的,内部防水盒,如果有水,还要塑料f1。其它要求,你看条款吧。
$ i# w# X6 H: i6 z4 d9 H4 B5.4.1 A barrier shall be constructed of one of the following:
! y! G1 t5 I- r' r; @e) a polymeric material that complies with Clause 5.7.1.7' Z. A& \# D4 s
5.7.1.7 A polymeric material used as a barrier shall:% h2 A+ C, E% n& O
a) have a minimum HB flammability rating or comply with the horizontal burning flame test of
Q( r3 R% @7 P( m: b" E& v# f6 vClause 17.25;
# z8 q7 p( |0 \' w- db) have a temperature rating equal to or greater than its maximum operating temperature in the$ }. w# a. _) B2 X! x& P* s2 M
luminaire;+ q% c% V& u- I
c) for molded or formed thermoplastic parts, comply with the mold stress-relief test of Clause
" r+ v# G# V. _* Y# i8 m D* G17.4; and3 b# _9 k" H$ m% u. |) F, C
d) comply with the barrier strength test of Clause 17.1. |
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