A special power cable for safe nuclear power plant

Abstract

The invention discloses a power cable special for a securely attached nuclear power station, which is applied to the nuclear power station for power transmission. The power cable comprises a plurality of electric conductors, wherein the electric conductors are integrally wrapped by flexible materials, gaps exist among the electric conductors, a first shielding layer, a second shielding layer, a first sheath and a second sheath are sequentially wrapped in the periphery of the flexible materials, each electric conductor comprises two wires, each wire is provided with a core positioned in the central part and an insulating layer wrapped in the periphery of the core, the spacing between every two wires is not smaller than the radius of the core and is not greater than the diameter of the core, every two wires are integrally wrapped by shielding materials to form one electric conductor, the first shielding layer is of a wrapping structure, and the second shielding layer is of a woven structure. The power cable special for the securely attached nuclear power station disclosed by the invention is good in anti-interference performance, high in anti-pressure capability and simple to replace.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a safe special power cable for nuclear power plants. Background technique [0002] With the rapid development of the country's economy, the demand for electricity has increased rapidly, which has stimulated the rapid development of the nuclear power industry. With the rapid development of the nuclear power industry, the demand for nuclear power cables is increasing and the requirements are getting higher and higher. At present, nuclear power cables at home and abroad have proposed "electromagnetic compatibility" without electromagnetic interference requirements. The existing ordinary power cables used for power transmission cannot adapt to the harsh operating environment of nuclear power plants. The line electrical and control system will cause interference, which will bring hidden dangers to the normal operation of the entire system and reduce the safety of the nuclear pow...

AI Technical Summary

Problems solved by technology

At present, nuclear power cables at home and abroad have proposed "electromagnetic compatibility" without electromagnetic interference requirements. The existing ordinary power cables used for power transmission cannot adapt to the harsh operating environment of nuclear power plants. The line electrical and control system will cause interference, which will bring hidden dangers to the normal operation of the entire system and reduce the safety of the nuclear power plant.

At the same time, at the same time, there is a high-voltage environment in the use environment of nuclear power cables. Ordinary power cables are easy to deform when used in high-voltage environments. Firm, especially when passing through holes, it is often very firmly fixed, and cables made of high-strength materials are not easy to disassemble after fixing, and are easy to be damaged during disassembly, which increases the cost of cable replacement, and the production cost is relatively high

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