Cable resistant to high temperature

Abstract

The invention discloses a cable resistant to high temperatures. The cable comprises a core unit formed by multiple cores. Each core consists of a core conductor and an insulating layer sequentially arranged from inside to outside. A steel band armored part is disposed outside the core unit. An outer sheath is disposed outside the steel band armored part. The insulating layer is of a dual-insulating-layer structure formed by an inner insulating layer and an outer insulating layer, wherein the inner insulating layer is prepared from irradiation crosslinked polyethylene material and the outer insulating layer is made from silicone rubber insulating material. Four cores are adopted, and silicone rubber insulating material filling bars are disposed in a central gap among the four cores. The irradiation crosslinked polyethylene inner insulating layer and the silicone rubber insulating outer insulating layer are adopted to form a dual-layer structure, so the cable exhibits an excellent insulating property and flame retardation capability. The outer sheath is made from silicone rubber, so the insulating property of the cable is improved. Moreover, the cable is resistant to high temperatures, so the service life of the cable is prolonged.

Description

technical field [0001] The invention relates to a cable, in particular to a high temperature resistant cable. Background technique [0002] However, there is currently no unified technical specification for special cables with a large quantity and a wide range. Each company operates independently, and the structural size requirements, materials and requirements, voltage levels, operating environment temperature, specification cross-section, and application occasions of the manufactured cables are all different. It is not uniform and very irregular, which brings a lot of trouble to users' selection and use, and because there are no national and industry standards, product requirements are not standardized, and product quality is uneven. These cables have no market supervision to follow, and a large number of unqualified or inferior Cables flood the market, which not only brings unnecessary economic losses to users, but also brings great hidden dangers to the safe operation of...

AI Technical Summary

Problems solved by technology

[0002] However, there is currently no unified technical specification for special cables with a large quantity and a wide range. Each company operates independently, and the structural size requirements, materials and requirements, voltage levels, operating environment temperature, specification cross-section, and application occasions of the manufactured cables are all different. It is not uniform and very irregular, which brings a lot of trouble to users' selection and use, and because there are no national and industry standards, product requirements are not standardized, and product quality is uneven. These cables have no market supervision to follow, and a large number of unqualified or inferior Cables are flooding the market, which not only brings unnecessary economic losses to users, but also brings great hidden dangers to the safe operation of equipment using cables, seriously threatening the normal operation of electrical control equipment, power systems, and the safety of personal and property

[0003] At present, many cables have poor high temperature resistance and cannot adapt to harsh working environments, which seriously affects the service life of cables.

Images