Research on Design of New 10kV Intelligent Explosion-proof Cable Joint

For cable joint with high failure rate, it is necessary to evaluate the health state of cable joint by on-line monitoring of internal characteristic state quantities, which can provide support for cable joint fault warning and fault diagnosis. However, most of the existing cable joint products are not suitable for the online monitoring of running state of cable joint. To address this issue, a new intelligent explosion-proof cable joint product was designed to realize the fault early warning and fault location on the premise of ensuring electrical safety. Moreover, the structural design of new cable joint product guarantees the excellent insulation performance, waterproof performance and explosion-proof performance. The superiorities of new cable joint product compared with tradition cable joint product were verified by the simulation model and real test. The new intelligent explosion-proof cable joint product with high reliability can directly reflect the health status of cable joint, which has important significance for ensuring the safe operation of cable line.