Cost effective removal of conductor crossing clearance constraints

Nov 2016

Electricity Transmission

Reference: NIA_NGET0198

Status: Complete

Start Date: Nov 2016

End Date: Nov 2017

Funding Licencee(s): National Grid Electricity Transmission

Contact: Karl Head

Funding Mechanism Network Innovation Allowance

Research Area: None

Core Technology(ies): Overhead Lines, Conductors and Electricity Transmission Networks

Estimated Expenditure: £245,000.00

Introduction: The scope of this project is to develop the installation methodology for raising the height of the bottom phase conductor on a tower by installing semi tension insulators on two consecutive towers in order to reach an overall increase in overhang clearance by 5m.

This methodology will then be tested by raising the overall height by 5m of two consecutive towers over a river crossing.

Objectives:

The objective of this project is to trial the ability to raise the overall height by 5m by installing semi tension insulators on two consecutive towers.

Expected Benefits: The project will be deemed successful if the overall height of two consecutive in situ towers can be raised by 5m by installing semi tension insulators.