易分离型架空电缆

Easily separatable overhead cable

Abstract

本实用新型公开一种易分离型架空电缆,包括钢丝和2根包覆有聚乙烯层的铜导体,第一护套层包覆于2根所述铜导体外表面,第二护套层包覆于钢丝外表面;一条形连接部位于第一护套层和第二护套层之间,此条形连接部左、右两侧均设有V形凹槽,此V形凹槽位于条形连接部中部,第一聚乙烯绳、第二聚乙烯绳位于条形连接部内部且分别位于V形凹槽两侧,所述聚乙烯层内具有若干气孔。本实用新型架空电缆既能轻松降低绝缘层的介电常数,进而达到降低电容、从而改善了线缆的传输性能,防止了线缆串音同时,又提高了柔韧性,防止频繁弯曲造成外护套层开裂。
The utility model discloses an easily separatable overhead cable which comprises a steel wire and two copper conductors that are respectively coated by a polyethylene layer. A first sheath layer coats the outer surface of the two copper conductors. A second sheath layer coats the outer surface of the steel wire. An elongated connecting part is arranged between the first sheath layer and the second sheath layer. The left side and the right side of the elongated connecting part are respectively provided with a V-shaped groove. The V-shaped grooves are arranged at the middle part of the elongated connecting part. A first polyethylene rope and a second polyethylene rope are arranged in the elongated connecting part and are respectively arranged at two sides of the V-shaped grooves. The polyethylene layer is internally provided with a plurality of air vents. The overhead cable provided by the utility model can easily reduce a dielectric constant of an insulating layer and furthermore has functions of: reducing capacitance, improving transmission performance of the cable, preventing crosstalk, improving flexibility, and preventing outer sheath layer crack caused by frequent bending.

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