多芯线如何做燃烧VW-1(只做外被吗,那么多芯线绝缘层也需要做吗)?

哪份标准,第几章节有规定,谢谢

UL758

41.2Insulated conductors in a finished cable are not determined to be rated VW-1 unless specically noted on the tag marking.就是说除非在标签上有特殊标识说明芯线燃烧等级是VW-1，其它情况护套线中的芯线是可以不通过VW-1的。

請看一下那款多芯線是屬于UL 里的哪種類型線，如AWM 中各STYLE NO的STYLE PAGE中有要求需做哪種燃燒測試。

根据“UL758_41.1Three specimens each of the finished insulated conductor and finished cable are to be tested in accordance with the VW-1 (Vertical-Specimen) Flame Test, Section 1080 of UL 1581. ”，说明对多芯线做VW-1燃烧测试时，是对整条线（包括芯线、外被、屏蔽、填充等）整体的燃烧