Level-1E control cable for third-generation passive nuclear power station gentle environment and production method

Abstract

The invention provides a level-1E control cable for third-generation passive nuclear power station gentle environment and a production method. The level-1E control cable for the third-generation passive nuclear power station gentle environment comprises conductors. Inner insulation layers and outer insulation layers are arranged on the outer walls of the conductors in an extruding mode, and wrapping tape is arranged on the outer walls of the conductors in a wrapping mode, so that a plurality of conductor cores are formed. The conductor cores are arranged in a filling body to be twisted to form a cable core. The cable core is sequentially provided with a wrapping tape layer, a composite shielding layer, a wrapping layer and a sheath layer from interior to exterior. The production method of the level-1E control cable comprises the steps of conductor twisting, extrusion of the inner insulation layers and the outer insulation layers, irradiation crosslinking processing of the inner insulation layers and the outer insulation layers, insulation wrapping, cabling, extrusion of the filling layer, shielding, extrusion of the sheath layer, and irradiation crosslinking processing of the sheath layer.

Description

technical field [0001] The invention relates to a cable and a production method, in particular to a third-generation passive nuclear power plant mild environment 1E level control cable and a production method. Background technique [0002] In the 21st century, the growth of population and economy in developing countries will inevitably bring about a huge increase in energy demand. At the same time, the fuel that provides more than 80% of the current electricity is gradually exhausted, and environmental protection requirements have a great impact on the use of fuel. limits. From the protection of resources, the improvement of environmental quality and the reliable supply of energy, nuclear energy has obvious advantages. [0003] In the special operating environment of nuclear power plants, as supporting cables for nuclear power plants, they must have strong thermal stability, good chemical stability, excellent radiation resistance, excellent aging resistance, moisture resist...

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Problems solved by technology

[0002] In the 21st century, the growth of population and economy in developing countries will inevitably bring about a huge increase in energy demand. At the same time, the

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