直线塔作为电缆终端塔的应用分析

针对新三亚牵引站—鸭仔塘线路路径变化裕度小、跨越建筑物多和原线路停电时间短等多个设计难题,通过对传统的拆除重建方案和直线塔改为电缆终端塔方案的设计论证,采取了在电缆直线塔处断电不断线的处理方式,改变了直线电缆终端塔的功能,没有改变其受力状态。充分利用了旧铁塔和基础,极大地节约了停电时间和投资,为城市电网改造设计提供了一种可借鉴的新思路。

Analysis of Straight Tower Used as Cable Terminal Tower

According to several design problems of transmission line from Xin-sanya traction station to Ya-zaitang substation,including the narrow line path,many buildings to be passed over and the short power-off time of the original line,by means of designing and analyzing the traditional scheme of rebuilding old towers and the scheme of using straight tower as cable terminal tower,method of power-off without disconnecting conductor at cable straight tower is adopted which changes the function of cable straight tower but don’t change the stress state.The proposed method makes full use of the old tower and its foundation so that greatly saved the power-off time and investment,which provides a new design idea for the city power grid modification.