Ultra-oil-resistant and ultra-low-temperature-resistant photoelectric comprehensive cable for rail transit vehicle and production method for cable

Abstract

The invention discloses an ultra-oil-resistant and ultra-low-temperature-resistant photoelectric comprehensive cable for a rail transit vehicle. A power transmission part comprises a conductor and an insulation layer, and the conductor is coated with the insulation layer; a signal control part comprises a ceramic silicone rubber fire-resistant insulation wire core; a light communication transmission part comprises one or more of a layer-stranded full-dry light transmission unit, a full-dry light unit of a central tube, a layer-stranded filled light unit and a filled light unit of the central tube; the power transmission part, the signal control part and the light communication transmission part are twisted to form a cable core; the cable core is coated with a shielding layer; the shielding layer structure is formed by braiding shielding monofilaments with the braided density not smaller than 80%; the shielding monofilaments are not smaller than 0.11 mm in outer diameter; a metal composite belt with the thickness not smaller than 0.063 mm is used for unwrapping in the shielding layer structure, the metal surface of the metal composite belt is contacted with the shielding layer structure during unwrapping, or a semi-conductive belt with the single-layer lap rate not smaller than 20% is used for wrapping; the shielding layer structure is sleeved with a sheath layer.

Description

technical field [0001] The present invention specifically relates to a new type of ultra-oil-resistant, ultra-low-temperature-resistant, low-smoke, halogen-free, flame-retardant photoelectric integrated cable for rail transit vehicles and its key process preparation method, in particular to a method for long-distance transport of high-speed railway passenger cars, EMUs or Heavy-duty trucks provide high-power, high-current and signal-controlled low-temperature-resistant power, control, and communication optoelectronic integrated cables. Background technique [0002] In recent years, my country's urban rail transit industry has developed rapidly and made remarkable achievements. As of December 31, 2012, more than 70 urban rail transit lines in 17 cities in mainland China alone have been put into operation, with a total operating mileage of 2064km. With the continuous acceleration of the urbanization process and the urgent need to solve urban traffic problems, various places h...

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Problems solved by technology

[0014] Purpose of the invention: In order to solve the lack of comprehensive performance of existing rail transit vehicle cables, the present invention provides a super oil-resistant and ultra-low temperature resistant photoelectric integrated cable for rail transit vehicles and its key process preparation method

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