Introduction: This project will demonstrate an alternative approach to testing for PCBs within network assets, this project will focus on the ability to carry this testing whilst the asset remains live therefore guaranteeing supply to our customers. This project will then feed into a second project where field trials will commence to prove the solution and develop a cost effective network asset management programme.

Objectives: The objective of the project is to develop and trial in a laboratory environment a solution to non-intrusively identifying PCBs in overhead assets, principally oil-filled transformers.

Expected Benefits: The project aims to provide a better, more cost effective solution for testing PCBs in network assets, as a result customers will benefit through a reduction in supply interruptions due to the ability to test whilst the assets remain live, reducing customer inconvenience. Other benefits include removing known environmentally hazardous assets from our network and by correctly identifying these assets will have financial benefits by targeting replacement where there is known contamination.