Metal ceramic insulator electrical penetration assembly of armoured conductors

Abstract

The invention discloses a metal ceramic insulator electrical penetration assembly of armoured conductors, which comprises an indoor junction box and an outdoor junction box, wherein two ends of a housing arranged in a wall opening are respectively connected to the indoor junction box and the outdoor junction box, two ends of the housing are respectively provided with flanges for sealing; a plurality of armoured conductors are arranged in the housing in parallel, two ends of each armoured conductor are respectively connected with electrical equipment through the indoor junction box and the outdoor junction box after penetrating through the flanges; and the structures of the armoured conductors arranged in the indoor junction box and the outdoor junction box are as follows: a ceramic tube is sleeved in the middle of an armoured tube of each armoured conductor, front metal sealed tubes are sleeved at the front end of the ceramic tube and outside the armoured tube and rear metal sealed tubes are sleeved at the rear end of the ceramic tube and outside the armoured tube. The metal ceramic insulator electrical penetration assembly has the advantages of simple and reliable structure, moreresistance to radiation, high temperature, chemical corrosion, firing and shaking and more safety; and the service life of the metal ceramic insulator electrical penetration assembly under a reactor environment is not less than 60 years.

Description

Technical field: [0001] The invention relates to an electrical penetrating part of an armored conductor metal ceramic insulator. Background technique: [0002] In recent years, my country has achieved great development in the field of nuclear energy, and will achieve greater development. Due to safety requirements, each nuclear reactor must be equipped with electrical penetrations of different numbers and types. In nuclear power plants built in my country, most of the electrical penetrations are produced by foreign companies, such as the French company AUXITROL. According to the national standard (GB13538-92) of "Nuclear Power Plant Containment Electrical Penetrations" issued by my country's State Bureau of Technical Supervision, my country approved two companies in January 2009 to design and manufacture safe non-electrical penetrations and produce them in small batches. The two companies are Shanghai Keda Electromechanical Control Co., Ltd. of Shanghai Power Generation Equ...

AI Technical Summary

Problems solved by technology

The electrical penetrations produced by the above domestic and foreign manufacturers are similar in technology; organic materials, such as polyesterimide, polysulfone, polyetherketone, etc., are used as insulating sealing fillers for conductors, and the sealing is achieved by swaging technology. The ferrule structure is used to connect and seal the flange. Compared with metals and ceramics, organic materials are less resistant to car radiation, waxy change, and high temperature, and have defects in life and safety. The production process of this kind of electrical penetration is complicated, the yield is low, and the cost is expensive

Images