Device for testing HV cables junction boxes e.g. for power cable equipment engineering technology

摘要

The device is for verifying the partial discharge behaviour of prefabricated, elastically expandable junction boxes for plastics insulated cables, including two part-pieces of a plastics-insulated HV cable. Each part-piece has a test end-seal (12,13) at one end, for plug-connection to the other ends within the junction box (1) being tested. A casing (5) encloses the junction box and the inserted cable-ends in a gas-tight fashion by a pressurised gas connection. The external diameter of the cable ends inserted into the junction box is at the most some 4% larger than the inner diameter of the prefabricated junction box.