Guide to minimise the use of SF6 during routine testing of electrical equipment

This brochure investigated the possibility of minimising the SF6 emission during the manufacturing of electric power equipment as well as on-site testing and commissioning by reducing the need for SF6 handling during routine testing and on-site testing. The following topics are addressed: Feasibility of the idea; Environmental friendly gases and their relative properties; Which tests could be modified and how; Which practical tests or simulation or technical know how is required to have a sound basis; Positive and negative aspects of the proposed approach; Which modifications should be introduced into the current Standards in force, if any. Type testing is not covered by this brochure.