Luminous intrinsic safety four-core composite low-voltage cable for environment-friendly intelligent power grid and fabrication method of cable

Abstract

The invention discloses a luminous intrinsic safety four-core composite low-voltage cable for an environment-friendly intelligent power grid and a fabrication method of the cable. The cable comprises a cable core, wherein the cable core is formed by twisting a single round insulation wire core and a plurality of fan-shaped insulation wire cores, a gap of the cable core is filled with a halogen-free low smoke glass fiber rope, a ceramic fireproof layer wraps the cable core, a metal armor layer wraps the ceramic fireproof layer, a high-conduction alloy wire is embedded in the metal armor layer, a high-strength halogen-free low smoke flame-retardant olefin outer protection layer is extruded outside, a fluorescent sensing red warning color tape is arranged in the high-strength halogen-free low smoke flame-retardant olefin outer protection layer, the round insulation wire core comprises a round conductor and a round insulation layer, the round insulation layer wraps the round conductor, each fan-shaped insulation wire core comprises a fan-shaped conductor and a fan-shaped insulation layer, and the fan-shaped insulation layer wraps the fan-shaped conductor. With the adoption of a structure combining a round shape and a fan shape, the roundness and all performances of the cable are further improved; and the cable is reasonable in structure design, the backward yield is eliminated, the transformation of scientific and technological achievements is achieved, the product cost performance is greatly improved, the resource is saved, and the benefit is brought to people.

Description

technical field [0001] The invention relates to the field of wires and cables, in particular to a low-voltage power cable with 0.6 / 1KV luminescent intrinsically safe composite structure for an environment-friendly smart grid and a preparation method thereof, in particular to a power cable used for automatic control of power grids, remote collection of power transmission information, and cable operation. Intrinsically safe and two-way interaction between the power grid and power users, an environmentally friendly smart grid with a rated voltage of 35kV and below, a light-emitting intrinsically safe composite structure power cable and a manufacturing method thereof, which meet the development of the power supply system in the direction of intelligence, high speed, reliability and safety demand. Background technique [0002] Cables manufactured by traditional technology have high production process costs, low cost performance, backward process technology, and poor practical per...

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Problems solved by technology

[0002] Cables manufactured by traditional technology have high production process costs, low cost performance, backward process technology, and poor practical performance; imported similar products do not match the domestic power system, and the cost will be greatly increased, and failures frequently occur during construction and use. Low levels, halogens are not environmentally friendly, no intrinsically safe functions, no warnings and other factors lead to production and life obstruction, and even disasters

[0003] The traditional production technology of power cables for smart grids has the following problems: 1) The poor performance of the material itself leads to poor insulation, mechanical and electrical properties, and contains halogens; 2) The structure is unreasonable, and there is no high conductivity alloy wire, capacitance and impedance Larger, poor shielding performance and anti-interference performance, no explosion-proof function; 3) There is no fluorescent induction red warning ribbon, the failure rate of cable construction is high, and intrinsic safety is not guaranteed; 4) The flame retardant and fire resistance of the cable reach Class A at the same time , high manufacturing cost and low cost performance; 5) Waste of national resources and social labor

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