Application of Lightweight Wire in High Orbit Satellite

Aiming at the lightweight requirements for high-orbit satellite harness, this paper analyzes the key factors affecting the harness weight and puts forward two lightweight design schemes. One is for the signal transmission cable, which accounts for about 70% of the total mass of the whole satellite harness, using lightweight conductor AWG28 wires instead of AWG26 wires in a high-orbit satellite, and design the special assembly process. After optimization, the whole satellite harness weight is reduced 9.92kg. Another is using the domestic C55/x3 series, which is a lightweight insulated material aerospace wire, and designing the installation and protective measures for high-orbit satellite harness. Application results show that the whole satellite harness weight is reduced 6.21kg than before. The two lightweight design schemes presented in this paper are feasible and effective on the premise of ensuring technical performance, reliability and security design.