Summary

Techical information to be of assistance in the design of circuits using GIL: definition and description of GIL; general technical characteristics and their comparison with O/H lines and conventional cables; continuous and short-term current rating of directly buried GIL, sensitivity analysis to design parameters. Insulation and overvoltage aspects from a long term reliability point of view. Mechanical corrosion and installation aspects of directly buried GIL. Environment considerations. Economic aspects. Recent GIL projects and R&D programmes.

Additional informations

Publication type Technical Brochures
Reference 218
Publication year
Publisher CIGRE
Study committees
  • Insulated cables (B1)
  • Substations and electrical installations (B3)
  • Power system technical performance (C4)
Working groups JWG 23/21/33.15
File size 5 MB
Pages number 261
Price for non member 300 €
Price for member Free
Gas insulated transmission lines (GIL)
Gas insulated transmission lines (GIL)