Water-blocking type split combined conductor provided with built-in optical fibers

Abstract

The invention discloses a water-blocking type split combined conductor provided with built-in optical fibers. The conductor is formed by assembling a plurality of split fan-shaped conductor strand blocks, and each fan-shaped conductor strand block is externally provided with a fan-shaped strand block waterproof layer; each fan-shaped conductor strand block is internally provided with a circular conductor, and each circular conductor is externally provided with a circular waterproof layer; a center gap, which is formed after the plurality of split fan-shaped conductor strand blocks are assembled, is internally filled with water-proof gauze, and a water-proof belt is arranged at the outer arc sides of the assembled split fan-shaped conductor strand blocks; five silk thread bundles, which are respectively provide with an optical fiber unit in the center in a dragging way, are arranged among fan-shaped angles formed by the fan-shaped strand block waterproof layers; gaps among the fan-shaped strand block waterproof layers, the water-proof belt and the silk thread bundles are respectively and internally filled with water-proof gauze. The whole conductor is protected by the waterproof layers, so that the conductor has a very strong water blocking function, and the phenomena that the electrical property of a cable is influenced or even the cable is abnormally broken since the conductor is oxidized or corroded due to water immersion can be avoided.

Description

technical field [0001] The invention relates to the field of cable conductors, in particular to a water-blocking split and combined conductor with built-in optical fibers. Background technique [0002] With the rapid growth of China's economy and the further acceleration of industrialization and urbanization, the requirements for the construction of infrastructure such as urban power grids are increasing. Cities in developed regions and provincial capitals have required the use of underground power cables to transmit electric energy in urban centers. At the same time, electricity is the premise and foundation of the development of the national economy. With the rapid development of the national economy, the demand for electricity has increased sharply, the capacity of the grid has increased sharply, and the power of motors has increased. ) transmission direction development. In order to increase the carrying capacity of the cable, the method of increasing the cross section ...

AI Technical Summary

Problems solved by technology

The way of water intrusion is mainly to invade the cable from the cable sheath and the end of the cable, causing oxidation and corrosion of the conductor, thereby affecting the electrical performance of the cable, and even abnormal disconnection accidents; , the insulation layer will produce "water branches", which will accelerate the electrical aging of the cable, cause cable breakdown accidents, and reduce the service life of the cable

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