Class 1e control cable for mild environment of third-generation passive nuclear power plant and production method

Abstract

The invention provides a Class 1E control cable for a third-generation passive nuclear power plant and a production method thereof. The third-generation passive nuclear power plant mild environment 1E level control cable includes a conductor, the outer wall of the conductor is extruded with an inner insulation layer and an outer insulation layer and wrapped with a tape to form a core, and multiple cores are placed in the filler and stranded to form a cable core. The cable core is sequentially provided with a tape layer, a composite shielding layer, a wrapping layer and a sheath layer from the inside to the outside. The production method of the 1E-class control cable includes the following steps: including conductor stranding; inner insulation layer and outer insulation layer extrusion; inner insulation layer and outer insulation layer irradiation cross-linking treatment; insulation wrapping; cabling? Extrusion of filling layer? Shielding? Extrusion of sheath layer? Radiation cross-linking treatment of 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...

AI Technical Summary

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 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

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