High-temperature-resistant K-3-level cable used for 1E-type nuclear power plant
A high temperature resistant, nuclear power plant technology, applied in the direction of insulating cables, cables, circuits, etc., can solve problems such as failure to meet the use requirements, easy corrosion of electrical points, poor oxidation resistance, etc., to reduce heat energy, prevent radiation, and enhance mechanical properties. Effect
Active Publication Date: 2014-06-11
ANHUI HUAYUAN CABLE GROUP
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Problems solved by technology
At present, the commonly used high-temperature-resistant cables generally use high-temperature plastic insulating material composite sheaths, with a temperature resistance of about 180°C, and have shortcomings such as short service life, low conductivity, poor oxidation resistance, and easy corrosion and aging of electrical point contacts. Requirements
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[0014] Such as figure 1 as shown, figure 1 It is a structural schematic diagram of a K3-grade cable for a high-temperature-resistant 1E nuclear power plant proposed by the present invention.
[0015] refer to figure 1 , the present invention proposes a K3 grade cable for high temperature resistant 1E type nuclear power plant, including seven conductors 1 .
[0016] Inside each conductor 1 is a wire 11 twisted with a plurality of nickel-plated oxygen-free copper wires. The wire 11 is covered with an insulating layer 12, and the insulating layer 12 is made of reinforced ETFE material. The insulating layer 12 is covered with a single-sided aluminum-plastic composite tape 13, the aluminum metal layer of the single-sided aluminum-plastic composite tape 13 faces inward, the plastic layer faces outward, and a tinned copper wire drain wire 14 is arranged inside.
[0017] Twisting seven conductors 1 into a cable core, covering the outside of the cable core with a wrapping layer 2, s...
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Abstract
The invention discloses a high-temperature-resistant K-3-level cable used for a 1E-type nuclear power plant. The high-temperature-resistant K-3-level cable used for the 1E-type nuclear power plant comprises a plurality of conductors. Each conductor comprises a guide line in the middle, an insulation layer and a single-faced metal plastic composite strip, wherein the guide line is wrapped with the insulation layer and the single-faced metal plastic composite strip; a guide wire is arranged inside the single-faced metal plastic composite strip; the insulation layer is made of ETFE materials. The conductors are twisted to be a cable core; the cable core is wrapped with a wrapping layer; the wrapping layer is wrapped with a double-metal braiding shielding layer; the double-metal braiding shielding layer is wrapped with a high-temperature-resistant winding layer; the high-temperature-resistant winding layer is wrapped with a sheath layer and is formed by winding carbon fiber strips; the sheath layer is made of ETFE materials. The high-temperature-resistant K-3-level cable used for the 1E-type nuclear power plant is good in high temperature resistance and radiation protection performance, is long in service life and can be used safely under the special environment of the nuclear power plant for a long time.
Description
technical field [0001] The invention relates to the technical field of cables, in particular to a K3 grade cable for high temperature resistant 1E nuclear power plants. Background technique [0002] With the continuous improvement of industrial automation level and the continuous development of instruments and meters, higher requirements are put forward for the temperature measurement system of instruments and meters. The environment of temperature measurement instruments and meters is relatively harsh, which puts forward higher requirements for the performance indicators of compensation cables. [0003] The third-generation nuclear power technology is a single-reactor arrangement of two-loop units with a design life of 60 years. The main safety system adopts passive design and is arranged in the containment. The containment has a double-layer structure, the outer layer is prestressed concrete, and the inner layer is Steel structure. Due to the special working environment o...
Claims
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IPC IPC(8): H01B7/29H01B7/17H01B7/28H01B7/18
Inventor 何邦飞叶明茂王考杭康小代俞林张俊
Owner ANHUI HUAYUAN CABLE GROUP