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？