关于高压电力电缆在桥梁上敷设的方案设计要点

由于广州市地理位置位于珠三角的珠江人海口，电力电缆也因此成为市区内跨越江河湖海等水道的一种常用的输电方式。对于在桥梁上敷设电缆，需要同时考虑桥梁与电缆的结构特性以及各自运行的安全，因此对电缆线路的敷设形式有着特殊的要求。对110kV以上电压等级电力电缆在道路桥梁上的敷设方案进行讨论，提出主要设计要点以及敷设参数计算方法，可为将来的工程提供参考。

Main Points of the HV Cable Laying Scheme on Bridge

Due to the geographical position of Guangzhou in the Pearl River delta, power cable is commonly used for river crossing in urban districts. Laying cable in the bridge needs to consider the characteristics and the safety of operation of the bridge and cable structure and, so the laying model has special requirements. This paper discusses the laying scheme of power cables of 110 kV and above in the road and bridge, and puts forward the main design points and calculation methods of laying parameters in the hope that it can provide some useful reference for future oroiects.