标准绝缘部分：listed insulated conductors shall be types THW-2,THWN-2,XHHW-2,RHW-2,THHW,THW,THWN,RHW,XHHW:or types TFN,TFFN,RFH-2.or FFH-2 using a wet-locations insulating compound rated for least 75℃（167）（QMTT2 in the case of PVC）.
哪位大侠帮忙看看绝缘料究竟用那种呀？