Low smoke zero halogen low-voltage mobile rubber jacketed flexible cable

Abstract

The invention discloses a low smoke zero halogen low-voltage mobile rubber jacketed flexible cable, relating to the technical field of a cable. The low smoke zero halogen low-voltage mobile rubber jacketed flexible cable comprises a thermoplastic polyolefin outer sheath, power wire cores and a ground wire core, wherein each power wire core is formed by extruding five types of oxygen-free soft copper conductors by a conductor isolation layer, a zero halogen ethylene propylene rubber isolation layer is extruded outside each conductor isolation layer, the ground wire core is formed by extruding five types of oxygen-free soft copper conductors by an insulation shielding layer, and the zero halogen ethylene propylene rubber isolation layer is extruded outside the insulation shielding layer, the power wire cores and the ground wire core are extruded to form a cable core by a cable forming isolation layer, flame-retardant filling strips are arranged in the middle and the edge gaps of the cable core, and the thermoplastic polyolefin outer sheath is arranged outside the cable core. The low smoke zero halogen low-voltage mobile rubber jacketed flexible cable has the advantages of reasonable design, simple and practical structure, excellent low smoke performance, corrosion resistance, flame retardancy and long service lifetime, is flexible and easy to lay, and is suitably used in an indoor site of a coal mine exploitation place.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a low-smoke, halogen-free, low-voltage mobile rubber-sheathed flexible cable. Background technique [0002] With the continuous development of coal mining areas, the scope of people's activities in underground coal mining areas is becoming wider and wider. The safety of mining personnel needs to be effectively guaranteed. The root cause of the fire is the generation of carbon monoxide (CO) poisonous gas and the subsequent The heat release of CO2 is produced during the process, so some methods are used to control the heat release. The severity of the fire depends on the success rate of people leaving the fire scene. The irritation and toxicity of smoke are the main factors restricting the escape from the fire scene. Therefore, in Under special circumstances, when a fire occurs, the wires and cables will burn, and the smoke, poison, and corrosion generated during the combustion shou...

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Problems solved by technology

[0002] With the continuous development of coal mining areas, the scope of people's activities in underground coal mining areas is becoming wider and wider. The safety of mining personnel needs to be effectively guaranteed. The root cause of the fire is the generation of carbon monoxide (CO) poisonous gas and the subsequent The heat release of CO2 is produced during the process, so some methods are used to control the heat release. The severity of the fire depends on the success rate of people leaving the fire scene. The irritation and toxicity of smoke are the main factors restricting the escape from the fire scene. Therefore, in Under special circumstances, when a fire occurs, the wires and cables will burn, and the smoke, poison, and corrosion generated during the combustion should be given priority. Some large-scale exploration and mining equipment and mechanical equipment are also used more and more. Wires and cables with high performance such as low smoke concentration, halogen-free, and flame retardancy provide a strong guarantee for their normal use. At present, common flame-retardant cables mainly use chlorinated polyethylene or neoprene protective layers. Because of these When the rubber contains a large amount of chlorine, it is easy to produce high-concentration smoke and toxic gases, which increases the personal injury in the event of a fire in the mine

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