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Waterproof surge protective grounding devices for high voltage power cable lines were design and developed by theory analysis and validating tests in this paper. The devices are made up of three main parts including high strength polymeric framework, copper bus-bars and over voltage protectors. All parts were sealed in one piece of EPR body which molded by continuously injecting rubber. These devices...
Operation faults of HV power cable lines have been increasing because of multi-points grounding of cable sheath which caused by over voltage breakdown. Cable metallic shield grounding and over voltage protecting techniques have been noticeably along with more and more underground power cable lines applied in urban transmission and distribution system. It is the key for us to design and optimize the...
A new type surge protective grounding device for high voltage power cable line was design and developed by theory analysis and validating tests in this paper. This device is made up of three main parts including high strength polymeric framework, copper bus-bar and over voltage protector. All parts were sealed in one piece of EPR body which molded by continuously injecting rubber. This device combined...
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