May 2014
Electricity Transmission
Investigation of Aeolian Insulator Noise
May 2014
Jun 2016
National Grid Electricity Transmission
Richard Morris
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Network Innovation Allowance
ET - Safety and health and environment
Overhead Lines
The purpose of the project is to determine the source of the problem (i.e. inherent design flaw giving rise to audible tone from insulators under certain wind conditions) with a view to developing a type test that will remove this problem in the future.

Development of a revised type test and an associated reduction in future noise complaints

The success criteria for the project will be:-

There are several steps to this work and success criteria for each are given below:

  • Report from Manchester University regarding the theory of Aeolian and resonance mechanisms in insulators

  • Successful completion and erection of the insulator test rig

  • Successful replication of Aeolian generated noise in controlled wind tunnel environment

  • Update to relevant policies and procedures to define new test regime for type registration