High-voltage bus cable for airport navigational light system, and preparation method and application of high-voltage bus cable

Abstract

The invention provides a high-voltage bus cable for an airport navigational light system, and a preparation method and an application of the high-voltage bus cable. The bus cable is composed of multiple shielded twisted pairs; an insulator is arranged outside an conductor; a shielding layer is arranged outside the twisted pairs; a copper strip which is used as a total shielding layer of the wholecable body is wound on the outer layers of the multiple shielded twisted pairs; a layer of polyethylene sheath material is subjected to extrusion molding outside the total shielding layer to serve asan inner sheath of the cable body; an armored galvanized steel wire is wound outside the inner sheath to serve as an armored protection layer; and polyethylene or polyvinyl chloride is extruded outside the armored protection layer to serve as an outer sheath. The preparation method of the cable is as shown in the description. When a navigational light cable works normally, reliable monitoring andmanagement can be carried out on the whole navigational light system; when a local part of the navigational light cable breaks down, through a bus structure in a topological form, a fault point of thenavigational light cable can be immediately determined; and high-voltage power supply is immediately carried out on the navigational light cable in the navigational light system through the system, thereby solving the problem of temporary power supply of a navigational light.

Description

technical field [0001] The invention relates to the field of cables, in particular to a high-voltage bus cable for an airport navigation light system, a preparation method and an application thereof. Background technique [0002] The airport navigation lighting system is a visual aid to ensure the smooth take-off, landing and taxiing of the aircraft at night or in low-visibility and bad weather conditions. It plays an important role in the safe take-off and landing of the aircraft. Throughout the airport, the area of ​​the navigation light is very wide, so a large number of navigation light cables are required to power the navigation light system. However, during the long-term working process, when the navigation light cable is subjected to external physical, chemical, biological and other conditions, when a fault occurs, because the length and area of ​​the cable laying are too large, it is difficult to find out the fault point in time, resulting in the navigation light cab...

AI Technical Summary

Problems solved by technology

However, during the long-term working process, when the navigation light cable is subjected to external physical, chemical, biological and other conditions, when a fault occurs, because the length and area of ​​the cable laying are too large, it is difficult to find out the fault point in time, resulting in the navigation light cable often not being repaired in time. Replacement will affect the safety of airport flights. Therefore, a bus cable that can monitor and control the navigation light system is needed. When the navigation light cable fails, the fault point range of the cable can be found and determined in time, and the bus The topological form of the cable bypasses the fault point of the navigation light cable, and provides temporary emergency high-voltage power supply to the locally affected navigation light cable system, so that a small number of local navigation lights continue to work normally, ensuring the safety of airport aircraft flights

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