Abstract :
The development of the gas-cushion cable over the last ten years for the highest voltages is traced from the point of view of performance under tests which have been formulated to give data for design purposes. Comparison is made with the normal solid cable-dielectrics under 50-c/s and impulse conditions. The special requirements pertaining to impulse testing when dealing with cables are enunciated, and the present dearth of data in this respect is revealed. Reference is made to possible future developments.
