| 代号Codes | 绝缘Insulation | 代号Codes | 内套Innersheath | 代号Codes | 铠装Armoring | 代号Codes | 外套Outersheath | 代号Codes | 特 征Charac-teristic |
| E | 乙丙橡胶绝缘EP-rubber insulated | F | 氯丁橡胶护套Chlorosu-lconationsheath | 8 | 镀锡铜丝编织Tinned Cu wire woven | 0 | 无外护套NO-Outer sheath | P | 线芯屏蔽Line core screen |
| JYJ | 交联聚乙烯绝缘XLPE Insulation | H | 氯磺化聚乙烯护套Chlorosu-lfonated polyethylene sheath | 9 | 镀锌钢丝编织Galvanizes Steel wire woven | 2 | 聚氯乙烯护套Polyvinylchloridesheath | R | 软Soft |
| V | 聚氯乙烯绝缘PVC Insulation | V | 聚氯乙烯护套Polyvinyl-chloride sheath | - | - | 5 | 交联聚烯烃护套Cross-linkedpolyolefinsheath | - | - |
| X | 天然丁苯绝缘NR/SBR insulated | PF | 热塑性聚烯烃护套Thermos-plasticity polyolefinsheath | - | - | 6 | 热塑性聚烯烃护套Thermos-plasticity polyolefinsheath | - | - |
| - | - | PJ | 交联聚烯烃护套Cross-linkedpolyolefinsheath | - | - | - | - | - | - |