Radiation-resistant light-weight symmetrical data transmission cable used for nuclear power plant and preparation method of cable

Abstract

The invention discloses a radiation-resistant light-weight symmetrical data transmission cable used for a nuclear power plant and a preparation method of the cable. The cable comprises multiple wire units, a wrapping layer and a sheath, wherein the wrapping layer is arranged on the exteriors of the multiple wire units; the sheath is arranged on the exterior of the wrapping layer in a sleeving manner; the space between the multiple wire units and the wrapping layer is filled with first fillers; each wire unit comprises multiple wires and a dual-layer silver-plated flat copper band woven shielding layer; the dual-layer silver-plated flat copper band woven shielding layer is arranged on the exterior of the corresponding wire in a sleeving manner; the space between the wire and the dual-layersilver-plated flat copper band woven shielding layer is filled with second fillers; each wire consists of a silver-pasted copper alloy twisted wire conductor and a crosslinked ethylene-tetrafluoroethylene copolymer insulating layer; and the exterior of the silver-pasted copper alloy twisted wire conductor is coated with the corresponding crosslinked ethylene-tetrafluoroethylene copolymer insulating layer. The cable has stable impedance, low attenuation, mould resistance, salt mist resistance, radiation resistance, high tensile strength, high external electromagnetic interference resistance, chemical corrosion resistance and dragging resistance.

Description

technical field [0001] The invention relates to transmission cables, in particular to a radiation-resistant lightweight symmetrical data transmission cable for nuclear power plants and a preparation method thereof. Background technique [0002] With the rapid and rapid development of today's science and technology and the urgent needs of my country's modernization, the industry is developing in the direction of high technology and high speed. Among them, nuclear power plant technology is one of the typical representatives. Nuclear power plants use nuclear reactors instead of boilers in thermal power plants, and use nuclear fuel to generate heat in a special form of "combustion" in nuclear reactors, turning nuclear energy into thermal energy to heat water and generate steam. Use steam to enter the steam turbine through the pipeline, drive the turbo generator to generate electricity, and convert mechanical energy into electrical energy. [0003] Nuclear power plants have the ...

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Problems solved by technology

3) The uranium fuel used in nuclear power generation has no other purpose other than power generation

[0004] During the operation of nuclear power plants, symmetrical data transmission cables make them necessary components. Although the existing symmetrical data transmission cables can meet certain basic requirements, it is often difficult for them to have stable impedance, small attenuation, mold resistance, salt spray resistance, Radiation resistance, high tensile strength, strong resistance to external electromagnetic interference, chemical corrosion resistance and drag resistance

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