Flame-retardant fireproof locomotive cable

Abstract

The invention discloses a flame-retardant and fire-resistant locomotive cable. The flame-retardant and fire-resistant locomotive cable comprises an outer-layer elastic insulating sheath. The flame-retardant and fire-resistant locomotive cable is characterized in that interlayer pads are arranged on the inner side of the outer-layer elastic insulating sheath; a plurality of interlayer pads are arranged; the plurality of interlayer pads are annularly distributed on the inner side of the outer-layer elastic insulating sheath; one side, close to the center of the cable, of each interlayer pad, isfixedly connected with an interlayer insulating layer; an outer-layer insulating cavity is formed between the interlayer insulating layer and the outer-layer elastic insulating sheath; an inner wrapping layer is arranged on the inner side of the interlayer insulating layer; metal shielding wires are arranged in a cavity formed between the interlayer insulating layer and the inner wrapping layer; and cable conductor cores are arranged on the inner side of the inner wrapping layer. According to the flame-retardant and fire-resistant locomotive cable of the invention, fastening connecting parts,the outer-layer insulating cavity and insulating rubber particles are adopted, and therefore, the problem that the insulating effect and flexibility of the locomotive cable are difficult to enhance through an air layer during the use of the locomotive cable can be solved, and the problem of influence on the use effect of the locomotive cable caused by difficulty in fixing internal cables can be solved.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a flame-retardant and fire-resistant locomotive cable. Background technique [0002] The cable is usually composed of several wires or groups of wires, each group of wires is insulated from each other, and is often twisted around a center, and the entire outside is covered with a highly insulating covering. Cables have the characteristics of internal electrification and external insulation. Wires and cables refer to materials used for power, communication and related transmission purposes. Products with fewer cores, small product diameters, and simple structures are usually called wires, those without insulation are called bare wires, and others are called cables. [0003] The object of the present invention is to provide a flame-retardant and fire-resistant locomotive cable, which solves the problem that when using a locomotive cable, it is difficult for the locomoti...

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Problems solved by technology

[0004] The object of the present invention is to provide a flame-retardant and fire-resistant locomotive cable to solve the problem that it is difficult for the locomotive cable to enhance the insulation effect and softness of the cable through the air layer when using the existing locomotive cable, and at the same time, it is also difficult to fix the internal cables. , and the problem that it is difficult to add internal fillers to locomotive cables, and it is difficult to enhance the bonding force between cables through internal fillers

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