Photoelectric composite cable for space station, and preparation method thereof

Abstract

The invention provides a photoelectric composite cable for a space station, and a preparation method thereof. The photoelectric composite cable comprises a cable core, and a calcined mica tape layer, an oxygen-isolating inner protective layer, a ceramic mica tape layer, an alkali-free glass fiber tape layer, a seamless longitudinally-wrapped beryllium copper layer, a hot-rolled stainless steel tape armor layer and a fireproof outer protective layer which are sequentially wrapped along the periphery of the cable core from inside to outside. Therefore, the photoelectric communication requirement of the space station is met, the radiation-proof, flame-retardant and fire-resistant performance is excellent, the operation is stable, and the reliability is high.

Description

technical field [0001] The invention relates to the technical field of photoelectric composite cables, in particular to a photoelectric composite cable for a space station and a preparation method thereof. Background technique [0002] At present, the manned spaceflight project has entered the "space station era" in an all-round way, and the construction of the space station is being fully carried out. The space station is a spacecraft that operates in low-earth orbit for a long time and can be used for astronauts to work and live. It can carry out space scientific research observation projects and investigate the earth's natural resources and other functions. It is a very challenging scientific research project. Very important. [0003] The space station consists of a core module, a living module, an experimental module, solar panels, a manned spacecraft, and a cargo spacecraft. Additional modules can be launched into orbit by space vehicles, and then spliced ​​and assemb...

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Problems solved by technology

[0004] Affected by solar radiation, the temperature difference between the inside and outside of each cabin of the space station is extremely large during operation, and the temperature range will reach about (-180~+120℃). The main operating environment temperature of ordinary photoelectric cables is (-40~+70℃). Under high and low temperature and radiation environments, optical cable communication is easily damaged and loses its effectiveness, resulting in communication signal interruption and data loss. The ordinary flame-retardant materials on the surface will also produce toxic and harmful gases under high temperature or combustion, which seriously endangers the lives of people in the cabin. Safety

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