Composite intelligent cable for ubiquitous electric power Internet of Things

Abstract

The invention discloses a composite intelligent cable for a ubiquitous power Internet of Things. The composite intelligent cable comprises an optical fiber cable core, an isolation layer, a metal armor layer and an outer protective layer which are sequentially arranged from inside to outside, wherein the optical fiber cable core comprises an optical fiber conductor, an insulating layer, a semi-conductive shielding layer and a metal shielding layer which are sequentially arranged from inside to outside; temperature sensing optical fibers are arranged in the optical fiber conductor and on the surface of the semi-conductive shielding layer, and a middle-layer sleeve and an outer-layer copper pipe are arranged on the outer side of the temperature sensing optical fibers in the optical fiber conductor; and a middle-layer sleeve and an outer-layer semi-conductive sleeve are arranged on the outer side of the temperature sensing optical fiber of the semi-conductive shielding layer. According tothe composite intelligent cable, the temperature sensing optical fibers are arranged on the surfaces of the optical fiber conductor and the semi-conductive shielding layer of the optical fiber cablecore, so that synchronous temperature measurement of the inner side and the outer side of the cable insulating layer is realized, and the problem of inaccurate cable temperature monitoring caused by temperature difference formed by thermal resistance of the insulating layer in the prior art is solved; and the temperature of the inner layer and the outer layer of the cable insulation layer can be precisely measured, and the cable temperature can be effectively monitored in real time.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a composite intelligent cable for the ubiquitous power Internet of Things. Background technique [0002] The ubiquitous power Internet of Things is to fully apply modern information technology such as mobile Internet and artificial intelligence and advanced communication technology around all links of the power system to realize the interconnection of all things and human-computer interaction in all links of the power system. It has comprehensive status awareness, efficient information processing, A smart service system with convenient and flexible features. [0003] Due to the popularity of the ubiquitous power Internet of Things, higher requirements are put forward for the cables used on it, and intelligent management of cables is required; while ordinary cables in the prior art do not have the conditions for intelligent management, there are Although the current-ca...

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Problems solved by technology

[0006] A composite intelligent cable for ubiquitous electric power Internet of Things according to the present invention includes an optical fiber cable core, an isolation layer, a metal armor layer and an outer sheath arranged sequentially from the inside to the outside; An optical fiber conductor, an insulating layer, a semi-conductive shielding layer and a metal shielding layer are arranged in sequence to the outside; a temperature-sensitive optical fiber is provided inside the optical fiber conductor and on the surface of the semi-conductive shielding layer, and a temperature-sensitive optical fiber located outside the optical fiber conductor is provided There is a middle layer of casing and an outer layer of copper tube; by setting a metal copper tube reinforcement layer for the temperature-sensing optical fiber in the optical fiber conductor, combined with the structural design of the optical fiber conductor line, it effectively solves the problem of extrusion of the temperature-sensing optical fiber due to the twisting force in the production of the optical fiber conductor The damage caused by the problem, the insulating layer adopts three layers of co-extruded insulating layer; the temperature-sensing optical fiber located on the semi-conductive shielding layer is provided with a middle sleeve and an outer semi-conductive sleeve; the surface of the optical fiber conductor and the semi-conductive shielding layer are simultaneously added The temperature-sensing optical fiber realizes synchronous temperature measurement of the inner and outer layers of the cable insulation layer, and solves the problem of temperature monitoring accuracy caused by the temperature difference caused by the insulation thermal resistance

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