RRU拉远供电用屏蔽轻型软电缆的研制

Development of Shielded Light-Weight Flexible Cable for RRU Remote Power Supply

随着拉远技术在通信行业的应用,基站中的远端射频单元(RRU)的供电问题日益受到各大运营商的重视。介绍了RRU直流供电用电缆的使用场景,电缆的导体采用异形5类软结构,绝缘、护套采用了耐寒、高阻燃的软质聚氯乙烯材料,绝缘、护套中间设置了铝塑带纵包、铜线编织复合屏蔽结构。该电缆具有外径小、重量轻、耐候性好、柔软、高阻燃的性能。

With the application of remote technology in communication industry,the power supply problem of the remote radio unit（RRU）in the base station has been paid more and more attention by the operators.The usage scenario of RRU DC power supply cable is introduced.The conductor of the cable adopts special-shaped type-5 flexible structure,and the insulation and sheath adopt soft PVC material with cold resistance and flame retardance,the composite shielding structure of aluminum-plastic strip longitudinal wrapped and copper wire braided is set between the insulation and sheath.The cable has small outer diameter,light-weight,good weatherability,flexibility,high flame retardance.