Control cable for nuclear power station

Abstract

This invention relates to multiple wire cores having a conductor in each and an insulation layer out of the conductor, in production, wire cores are manufactured first and multiple cores form a beam wrapped with belts, fillers are filled among the cores in the belts, flame retardant glass fibers belt layers wrap the belts characterizing that a tin brass wires woven shield layer, a glass fiber strip layer and a belt wrap the flame retardant glass fiber strip layer and finally an outer jacket to be cross linked by electronic beams of 8-16Mrad.

Description

technical field [0001] The invention relates to a control cable for nuclear power plants. Background technique [0002] Existing conventional control cables have multiple wire cores, each wire core has a conductor inside, and the outside of the conductor has an insulating layer; after multiple wire cores are bundled, there is a tape on the outside, and the outside of the tape has a glass ribbon layer , there is an outer sheath on the outermost side; there is a filler between the cores; currently, thermoplastic materials are used to make the insulating layer and the outer sheath. Although the control cable has a simple structure, it cannot meet the requirements of several main technical indicators of nuclear power plants such as long thermal life, radiation resistance, and high flame retardancy, especially for the cracking of the outer sheath of the cable. Contents of the invention [0003] The object of the present invention is to provide a control cable for nuclear power...

AI Technical Summary

Problems solved by technology

Although the control cable has a simple structure, it cannot meet the requirements of several main technical indicators of nuclear power plants such as long thermal life, radiation resistance, and high flame retardancy, especially for the cracking of the outer sheath of the cable.

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