K1-type electrical connector assembly of mineral insulated cable for nuclear power

Abstract

The invention relates to a K1-type electrical connector assembly of a mineral insulated cable for nuclear power, and the assembly comprises a cable assembly, and a plug and a socket which are respectively spliced with two ends of the cable assembly. The cable assembly is characterized in that the cable assembly comprises a mineral cable, a corrugated pipe wrapped outside the mineral cable, a positioning plate for fixing the mineral cable, and a stainless steel pipe welded with the positioning plate; the stainless steel pipe is internally provided with a glue pouring area and a switching jack contact piece; the switching jack contact piece is of a double-end jack structure, one end of the switching jack contact piece is electrically connected with the mineral cable core wire through a barewire, and the other end is plugged with the plug or the socket; the plug comprises a connecting nut, a spline housing, an insulator part, and a glass sintering part which is in butt joint with the double-end jack contact part; the socket is of an integrated structure formed by sintering a socket shell, a glass cake II and a double-end contact pin contact piece II through glass. The assembly provided by the invention is resistant to irradiation and aging and long in service life, and it is guaranteed that the product can still be used after being subjected to severe accident working conditionswhile the using requirements of a nuclear-grade K1-type electrical connector are met.

Description

technical field [0001] The invention relates to the technical field of connectors, in particular to a K1 electrical connector assembly for mineral insulated cables for nuclear power. Background technique [0002] Mineral insulated cables are very different from conventional cables. The sheath of mineral cables is stainless steel, and the insulating material between the core wires is silica powder. During the stripping process, silica powder is easy to absorb moisture and cause insulation performance to decrease. The core wire has no independent insulation layer and is easy to short circuit. Therefore, the integration of mineral cables and electrical connectors is a very complicated technology. , long life, corrosion resistance and mechanical strength of the skin have absolute advantages. [0003] The insulating support material conventionally designed for electrical connectors is plastic, but the mechanical strength and dielectric properties of this type of insulating suppo...

AI Technical Summary

Problems solved by technology

[0002] Mineral insulated cables are very different from conventional cables. The sheath of mineral cables is made of stainless steel, and the insulating material between the core wires is silica powder. During the stripping process, silica powder is easy to absorb moisture, resulting in reduced insulation performance. The core wire has no independent insulating layer and is easy to short circuit. Therefore, the integration of mineral cables and electrical connectors is a very complicated technology. However, since mineral cables themselves do not have any organic materials, compared with conventional organic cables, they are more resistant to radiation and high temperature. , long life, corrosion resistance and mechanical strength of the skin have absolute advantages

[0003] The conventionally designed insulating support material for electrical connectors is plastic, but the mechanical strength and dielectric properties of this type of insulating support will decrease to varying degrees under high cumulative doses of radiation and high temperature environments, which may lead to failure of electrical connectors

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