电缆主要有铜导体：
The cable mainly has copper conductor
导体可分为裸铜，镀铜，铜包钢，铜合金，铜箔丝等。
Conductor can be divided into bare copper, copper plating, copper clad steel, copper alloy, copper foil wire, etc.
裸铜---导体电阻小，易氧化 镀铜---抗氧化性增强
Bare copper --- conductor resistance is small, easy to oxidize copper plating --- oxidation resistance is enhanced
镀锡铜---抗氧化性增强，便于后续焊接 镀银铜---导电性强，价格高，多用于射频电缆及氟塑料高温线
Tinned copper - oxidation resistance enhanced, easy to follow-up welding silver plated copper - strong conductivity, high price, mostly used for radio frequency cable and fluoroplastic high temperature wire
铜包钢---强度高，常用于架空电缆
Copper clad steel - high strength, commonly used in overhead cables
铜合金---强度高（铜中加入少量其它金属）
Copper alloy - high strength (copper with a small amount of other metals)
铜箔丝---抗弯折能力强，柔软度高（将铜压成薄片后包裹在弹性纤维上）
Copper foil wire: strong bending resistance and high softness (copper is pressed into thin sheets and wrapped on elastic fiber)
为提高导体强度，通常采取将多条铜 线绞合的方式
In order to improve the strength of the conductor, the method of twisting several copper wires is usually adopted
二、电缆绝缘体：
2、 Cable insulator:
常用绝缘材质有PVC（PolyVinyl Chloride ，聚氯乙烯)、SR-PVC（Semi-rigid PVC，半硬质PVC）、PP (Polypropylene，聚丙蠕动泵 保定建筑设计 保定网站建设 保定网站制作 保定网络公司 保定办公家具 保定轻钢别墅 烯）、PE（Polyethylene，聚乙烯）、Foam-PE、Foam-PE+Skin等，还有最新的氧化镁（MI）矿物绝缘体。
The commonly used insulation materials are PVC (polyvinyl chloride), sr-pvc (semi-rigid PVC), PP (polypropylene), PE (polyethylene), Foam PE, Foam PE + skin, etc., as well as the latest magnesium oxide (MI) mineral insulator.