Introduction: 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.

Objectives:

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

Expected Benefits: 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