聚乙烯套 meaning in Chinese

polyethylene jacket

Standard specification for thermoplastic polyethylene jacket for electrical wire and cable
电线和电缆用热塑性聚乙烯套的标准规范
2 . working temperature for long time not exceed the following regulation : 90 for cable of pvc outer sheath , 80 for cable of polythene outer sheath
2电缆线芯长期允许工作温度不得超过下列规定：外护层是聚氯乙烯套的电缆为90外护层是聚乙烯套的电缆为80 。