110~220 kV电缆终端避雷器底座共享装置的研究

Research on the Base Sharing Device of 110~220 kV Cable Terminal Arrester

针对目前在网运行的110~220 kV电缆终端塔台区的避雷器型式多样性,且产品结构高度和底座接口型式各不相同的问题,导致检修时部分避雷器更换困难,通过调研、汇总国内多家避雷器供应商的110~220 kV避雷器底座接口尺寸,设计了一种在电缆终端台区上可调节、避雷器可安装共享的底座装置,并进行了机械强度的计算和校核,该装置可满足110~220 kV避雷器的安全运行要求,也适用于国内绝大多数厂商的避雷器产品安装需求,解决了底座接口型式各不相同的问题。

Due to the various types of surge arresters operating in the 110-220 kV cable terminal tower area and differ‐ent surge arresters with different structure of heights and base interface types,it cause difficult to replace some of the surge arresters during maintenance.Through investigations and summaries of many domestic 110-220 kV surge arrester base sizes suppliers,the new adjustable interface size of the surge arrester base is designed for the cable terminal area in general.The mechanical strength the base is calculated and checked with satisfactory result for the requirement of 110-220 kV.The design also meets the safety operation requirements for most of the domestic surge arrester manufacturers.This has solved the problem of different base interface types.