Heat-resistant shielded power cable for nuclear power stations
A technology for power cables and nuclear power plants, applied in the field of heat-resistant shielded power cables for nuclear power plants, can solve problems such as difficulty in achieving heat-resistant shielding for nuclear power plants, no indication of which materials to use, hidden dangers of normal system operation, etc., and achieves high hardness and toughness. The effect of uniform dielectric constant and excellent electrical shielding performance
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[0024] The present invention includes a composite cable core composed of three power cable cores stranded, a filler layer 4 is arranged on the composite cable core, and an isolation layer 5, The composite shielding layer 6, the flame-retardant tape 7, the oxygen barrier layer 8, and the outer sheath 9. The filler layer 4 is made of low-smoke halogen-free flame-retardant polyolefin material, and the isolation layer 8 is made of polyester film wrapping, composite shielding The inner layer (hatched part) of layer 6 is braided and wrapped by tin-plated copper wire, and the outer layer of the composite shielding layer 6 (the outer part of the hatched part) is overlapped and wrapped by aluminum-plastic composite tape (the aluminum-plastic composite tape is wrapped around the When the aluminum foil faces outward), the flame-retardant tape 7 is made of glass fiber tape, the oxygen barrier 8 is made of radiation cross-linked low-smoke halogen-free f...
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