Cable for power transmission to aircraft and manufacturing method thereof

Abstract

A cable for power transmission to aircraft, the cable core includes a three-phase power cable core and a control cable core, the three-phase power cable core is used to transmit three-phase 400Hz intermediate frequency power to the aircraft, and the control cable core is used to transmit control signals; the three-phase power cable core The core has 7 insulated wire cores in total, one is the neutral wire core, and the other 6 are phase wire cores, which surround the neutral wire core and are arranged concentrically with the neutral wire core. Divided into three phases of A, B, and C, two for each phase, and the six phase wire cores are arranged alternately according to the phase sequence of A, B, and C; the control cable core is arranged on the periphery of the phase wire core, and is concentric with the power cable core In the layout state, there are 6 groups of control cable cores, corresponding to 6 adjacent parts formed by 6 phase wire cores; there are tensile ropes in the insulating cores of the power cable cores, and one The tension rope is located in the center of the conductor. There are 3 tension ropes in the neutral core, located in the sub-center layer of the conductor, evenly distributed in the circumferential direction, and arranged alternately with the 3 annealed copper wires of this layer.

Description

technical field [0001] The invention relates to a cable, in particular to a cable for power transmission to an aircraft and a manufacturing method thereof, which is specially used for airport ground staff to transmit electric energy to an aircraft and transmit detection signals. Background technique [0002] The plane needs to go to the ground frequently to replenish power. When the plane lands on the apron, the airport ground staff uses cables to transmit power to the plane. Since the aircraft uses an intermediate frequency three-phase power supply with a voltage of 115 / 200V and a frequency of 400Hz, and the power transmission process needs to be monitored, there are special requirements for cables, mainly: [0003] 1. It can transmit electric energy and detect control signals at the same time; [0004] 2. The voltage, current, capacitance, and impedance (inductive reactance, capacitive reactance) of the three-phase power supply must be kept in balance; [0005] 3. The vo...

AI Technical Summary

Problems solved by technology

[0005] 3. The voltage drop during the transmission process shall not be greater than 2V;

[0007] 5. Since the cable must be wound on the reel after power transmission, it must have good flexibility;

[0009] 7. The fire safety level of the airport is very high, and the cables must have flame retardancy, oil resistance and low smoke;

[0011] At present, there is no cable product that meets the above requirements in China. There is an airport supporting equipment company named GAVOTEC abroad that has similar cable products. Construction localization process

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