Environment-friendly, oil-resistant and flame-retardant rail transit locomotive cable

Abstract

The invention discloses an environment-friendly, oil-resistant and flame-retardant rail transit locomotive cable, which comprises a plurality of uniformly distributed conductors, and is characterizedin that the plurality of conductors are all stranded and twisted by adopting a CAT-6 tinned copper wire and aramid fibers, the stranding pitch is not greater than 12 times, each of the plurality of conductors is externally wrapped with an insulating layer to form an insulating wire core, the insulating wire cores are mutually stranded to form a cable core, the cable core is externally wrapped witha wrapping layer, an isolating layer and a composite shielding layer in sequence, the composite shielding layer is externally wrapped with an armor layer, the armor layer is externally extruded and shaped with a nylon sheath layer, gaps among the plurality of conductors inside the cable core are filled with a flame-retardant and fire-proof quartz fiber filler. The environment-friendly, oil-resistant and flame-retardant rail transit locomotive cable is high in cable core strength and not easy to break and has good flexibility at the same time. In addition, the cable has good high-and-low temperature resistance, tear resistance, vibration resistance and shielding and bending characteristics.

Description

technical field [0001] The invention relates to cables, in particular to an environment-friendly, oil-resistant and flame-retardant rail transit locomotive cable. Background technique [0002] With the rapid development of the national railway system, the "Fuxing" EMU is independently developed. In terms of transportation, the future trend is fast and efficient. Existing locomotive cables, especially some control cables or signal cables, have small cross-section cables with poor tensile properties. The copper wire inside the conductor is easy to break during the stretching process, which cannot meet the high-speed operation requirements of the locomotive. There is an urgent need to develop environmentally friendly cables with properties such as halogen-free, low-smoke, wear-resistant, environmentally friendly, oil-resistant, and flame-retardant, for use in high-speed railway rolling stock cables. Contents of the invention [0003] In order to make up for the existing tech...

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Problems solved by technology

[0002] With the rapid development of the national railway system, the "Fuxing" EMU is independently developed. In terms of transportation, the future trend is fast and efficient. Existing locomotive cables, especially some control cables or signal cables, have small cross-section cables with poor tensile properties. The copper wire inside the conductor is easy to break during the stretching process, which cannot meet the high-speed operation requirements of the locomotive

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