Detection and Measurement of ACSR Corrosion
National Grid Electricity System Operator
National Grid TO Innovation Team
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Innovation Funding Incentive
Gas Distribution Networks
Conductor life and reliability are of increasing importance as Aluminium Conductor Steel Reinforced (ACSR) conductor
reaches the end of its technical asset life. Conductor condition information is vital
when making optimised asset replacement decisions. Approximately 20 years
ago, the CEGB developed non destructive test equipment to measure steel core
loss. The equipment developed from this project is still in use and is the only
proven method of detecting loss of galvanising in ACSR conductors. The existing
equipment is obsolete and increasingly difficult to operate and maintain. The
analysis software runs only on legacy hardware and with unsupported DOS
software only. There is no modern equivalent equipment available world-wide.
Development of a replacement for existing ACSR conductor corrosion detection