High-temperature refractory cable in aero-engine region

Abstract

The invention discloses a high-temperature refractory cable in an aero-engine region. The cable comprises a cable body. The cable body comprises a conductor, an inner insulating layer, an outer insulating layer and an outer sheath layer. The cable body is internally provided with a plurality of conductors. The inner insulating layer is wrapped tightly outside the conductors. The outer insulating layer is extruded outside the inner insulating layer. A heat insulation layer is extruded outside the outer insulating layer. A refractory layer is extruded outside the heat insulation layer. A shielding layer is extruded outside the refractory layer. The outer sheath layer is extruded outside the shielding layer. The cable is reasonable in structural design, convenient to use and resistant to high temperature.

Description

technical field [0001] The invention relates to the field of cables, in particular to a high-temperature fire-resistant cable used in the area of ​​an aeroengine. Background technique [0002] With the rapid development of my country's aerospace industry, cables for special parts of aircraft have always been dependent on imports, especially high-temperature fire-resistant cables for aero-engine areas. They must not only meet the special environmental requirements at high altitudes, but also need to have excellent long-term high and low temperature fire resistance performance requirements. At present, the existing high-temperature fire-resistant cables are used on the ground, and the service life is short and the reliability is poor. Some imported or domestically improved cables have been used in aerospace, and their performance does not fully meet the high reliability requirements of aerospace. The grade only meets the temperature of -65℃~+260℃, the outer diameter and weight...

AI Technical Summary

Problems solved by technology

At present, the existing high-temperature fire-resistant cables are used on the ground, and the service life is short and the reliability is poor. Some imported or domestically improved cables have been used in aerospace, and their performance does not fully meet the high reliability requirements of aerospace. The grade only meets the temperature of -65℃~+260℃, the outer diameter and weight cannot be the smallest and the most delicate, and the high reliability requirements for high-altitude environments still need to be improved

Images