Rubber jacketed flexible cable with low smoke, no halogen, low toxicity and environment friendliness for coal mine

Abstract

The invention discloses a rubber jacketed flexible cable with low smoke, no halogen, low toxicity and environment friendliness for a coal mine. The rubber jacketed flexible cable comprises three power wire core conductors, wherein an ethylene propylene rubber insulating layer coats the outer surface of each power wire core conductor; an inner protective jacket layer coats the outer surfaces of the three power wire core conductors; an outer protective jacket layer coats the outer surfaces of the inner protective jacket layer; each of the protective jacket layer and the outer protective jacket layer consists of the following components in parts by weight: 80-100 parts of ethylene vinyl acetate copolymer, 5-20 parts of ethylene-propylene diene copolymer, 130-170 parts of aluminium hydroxide, 0.5-1.5 parts of stearic acid, 1.5-2 parts of release agent, 2-3 parts of high abrasion furnace black, 1-2 parts of coupling agent, 3-4 parts of dicumyl peroxide, 2.5-3.5 parts of accelerator, 7-9 parts of dioctyl adipate, 0.3-1.4 parts of triallyl cyanurate and 5-10 parts of composite flame retardant. According to the rubber jacketed flexible cable disclosed by the invention, service performances can be kept stable under the severe environment conditions, the service life is prolonged and the reliability is improved; while the flame retardant performance is improved, the rubber jacketed flexible cable has the advantages of excellent acid resistance, low smoke, no halogen, low toxicity, oil resistance and other medium corrosion resistances.

Description

technical field [0001] The invention relates to a low-smoke, halogen-free, low-toxicity and environment-friendly rubber-sheathed flexible cable for coal mines, belonging to the field of rubber-sheathed flexible cables for coal mines. Background technique [0002] 3.1 The product is mobile laying under the mine, and is often used under harsh environmental conditions, such as: the cable is subjected to excessive bending, stretching, torsion, mechanical external force impact and other harsh operating environments for a long time, and the performance declines relatively quickly. The life span is relatively short. [0003] 3.2 Underground coal mining sites are mostly in very harsh environments, usually with high gas and methane gas concentrations, flammable and corrosive (direct contact with strong acids, mineral oil and other chemicals) environments requiring cables to have good resistance Combustibility (when the cable and the surrounding environment are on fire, it can preven...

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Problems solved by technology

[0002] 3.1 The product is mobile laying under the mine, and is often used under harsh environmental conditions, such as: the cable is subjected to excessive bending, stretching, torsion, mechanical external force impact and other harsh operating environments for a long time, and the performance declines relatively quickly. relatively short lifespan

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