SYNTHETIC INSULATING MEMBER UNDER MECHANICAL STRESS WITH GLASS FIBRE REINFORCEMENT FREE OF BORON AND BORON COMPOUNDS FOR HIGH TENSION SWITCHING ARRANGEMENTS CONTAINING SULPHUR-HEXAFLUORID GAS

摘要

The resistance of insulating pieces made of fiberglass reinforced plastics against the decay products of SF6, such as occur within sealed high-voltage switching devices is unexpectedly enhanced by the use of a reinforcing fiberglass made of a low-alkali silicate glass containing neither boron nor boron-compounds.