Trial & Performance Assessment of ACCR Conductor (3M)
Status:
Complete
Project Reference Number:
NIA_NGET0067
START DATE:
END DATE:
Project summary
Funding mechanism:
  • Network Innovation Allowance
Technology:
  • Overhead Lines
Expenditure:
£600,000
Summary
Documents

In order to increase a line’s thermal rating without rebuilding or replacing its structures and foundations, the original conductor can be replaced with a special high-temperature, low-sag (HTLS) conductor having the a similar dimensions and properties as the original, but which can be operated safely and reliably at much higher temperatures with far greater ampacity.

This project will assess the suitability of the new generation of high temperature low sag OHL conductors currently available on the market, for deployment on the UK transmission network, in terms of mechanical capability & performance, erection methods, maintenance & repair.

At present National grid have installed both GAP and ACCC (CTC) conductors on the bottom & middle phase on the de-commissioned YYO line near Sheffield in order to evaluate the mechanical performance.

Benefits

This project is successful if we improve the knowledge of alternative conductors.

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