Recommendations regarding the use of "SF6 free" dielectric gases in cable systems

This paper is an interim report from Working Group B1.88, "Recommendations regarding the use of SF₆ free gases in cable systems", that includes detailed descriptions. The WG will issue a complete brochure by the end of 2026. This paper focuses on what the Working Group has been already agreed upon, regarding the compatibility tests in cases chemically non inert gases are used, including leakage tests and pressure table as a function of the cable system voltage class.

Download this article

ELECTRA, is the digital magazine of CIGRE, you can obtain access as part of a CIGRE membership. Find out more about joining options here.

Already have an accountSign in

Join

B1

Insulated cables

This Technical Brochure has been created by a Working Group from the CIGRE Insulated cables Study Committee which is one of CIGRE's 16 domains of work.
The scope of SC B1 covers the whole Life Cycle of AC and DC Insulated cables for Land and Submarine Power Transmission, which means theory, design, applications, manufacture, installation, testing, operation, maintenance, upgrading and uprating, diagnostics techniques.

Learn more

Top of page