Flame-retardant and high-temperature-resistant power cable with high mechanical strength

Abstract

The flame retardant and high temperature resistant power cable with high mechanical strength proposed by the present invention includes a first wire core and a plurality of second wire cores. The first wire core is located in the middle of the cable core and has a circular cross section. It includes a first conductor and a first insulating layer wrapped on the outside of the first conductor. The second core has a fan-shaped annular section, which is arranged in parallel and longitudinally. The inner arc surface of the second core is in contact with the first core. By offsetting the flat surfaces and making the cable core have a circular cross-section, the second wire core includes a second conductor and a second insulating layer wrapped outside the second conductor, the glass fiber tape is wrapped around the outside of the cable core to form a wrapping layer, and the steel wire The copper wire is braided and wrapped around the outer periphery of the cladding layer to form a shielding layer, the ceramic silicone rubber is extruded and wrapped around the outer periphery of the shielding layer to form a flame retardant layer, and the low smoke halogen-free polyethylene is extruded and wrapped around the outer periphery of the flame retardant layer to form an outer sheath. The density is greater than 80%. The present invention has the advantages of compact structure, good mechanical strength, high temperature resistance and flame retardancy.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a flame-retardant and high-temperature-resistant power cable with high mechanical strength. Background technique [0002] Electrical equipment includes primary equipment and secondary equipment, and cables belong to secondary equipment in electrical equipment. With the continuous development of our country's economy, the application range of cables is getting wider and wider, and their performance requirements are getting higher and higher. Traditional cables have poor heat resistance and are prone to burning in the event of a fire, which affects power transmission and expands the spread of fire, which cannot effectively protect the lives and property of citizens. The above problems urgently need to be solved. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a flame-retardant and high-t...

AI Technical Summary

Problems solved by technology

Traditional cables have poor heat resistance and are prone to burning in the event of a fire, which affects power transmission and expands the spread of fire, which cannot effectively protect the lives and property of citizens.

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