Induced voltages and currents on transmission overhead lines under NSI 4 working practices

Feb 2014

Electricity Transmission

Reference: NIA_NGET0012

Status: Complete

Start Date: Feb 2014

End Date: Jun 2016

Funding Licencee(s): National Grid Electricity Transmission

Contact: Alistair Skinner

Funding Mechanism Network Innovation Allowance

Research Area: None

Core Technology(ies): Overhead Lines and Maintenance & Inspection

Estimated Expenditure: £135,000.00

Introduction: This document summarises the issues and proposes a research work programme consisting of a series of tasks to address the questions raised. The tasks will involve detailed computations and some experimental tests with the aim to assist National Grid in developing simple and straightforward guidance relating to NSI 4 working practices.

Objectives:

The key objective of this project is to establish working practice requirements based on the application of innovative modelling techniques developed by Cardiff University.

Expected Benefits:

Production of a Induced Voltages and Currents progress report
Production of a Safety Assessment progress report
Production of a final report on Induced Currents and Voltages and safety practices on OHL transmission lines.