A kind of anti-freezing rain cable material and the cable prepared therefrom

Abstract

The invention discloses a cable material for preventing freezing rain and a cable prepared therefrom. The cable includes a conductor layer, a protective layer covering the outer side of the conductor layer, and an antifreezing rain layer arranged outside the protective layer, wherein, The antifreeze rain layer includes the following components by weight: cationic quaternary ammonium salt: 100 parts by weight; ethyl acetate: 60 parts by weight; ethylene glycol monobutyl ether: 40 parts by weight. The cable of the present invention forms an anti-freezing rain layer outside its protective layer, which reduces the surface tension of the cable surface and prevents rime, supercooled water, freezing rain, and snow from adhering to the surface of the cable, thereby solving the problem that the cable is easily damaged in low temperature weather. The problem of icing can prevent the cable from being subjected to heavy loads and ensure the normal use of the cable.

Description

technical field [0001] The invention belongs to the field of power cables, and in particular relates to a cable material for anti-freezing rain and a cable prepared therefrom. Background technique [0002] Power cables, as a carrier for the transmission and distribution of electric energy, are widely used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. Cables usually include two parts: a conductor as a cable core and a protective layer covering the outside of the conductor. The protective layer outside the cable core can be provided with multiple protective sheaths with different functions according to different requirements for the cable. [0003] With the rapid development of the national economy and the integration of the world economy, the requirements for wires and cables are getting higher and higher, and with the construction and de...

AI Technical Summary

Problems solved by technology

[0003] With the rapid development of the national economy and the integration of the world economy, the requirements for wires and cables are getting higher and higher, and with the construction and development of the "Belt and Road", cables need to be used in cold areas such as mountains, deserts, etc. , and the field cables often experience extremely harsh meteorological environments such as lightning strikes, blizzards, and freezing rain. Compared with the impact of lightning strikes, freezing rain has a more serious impact on the cable power grid. Collapse, cable disconnection, etc., the recovery time is long and difficult; the economic loss of the power grid is serious, and the restoration and reconstruction investment is huge

The main reason why freezing rain seriously harms the cable power grid is that the freezing rain caused by the cold wave will cause the cables and branches to be covered with rime. The heavy load of 10-20 times its own weight, coupled with the shock caused by the wind and the influence of the weight of the rain, can cause the cables and poles to be crushed due to the heavy load, and the poles of several kilometers or even dozens of kilometers will fall in rows , causing interruption of power transmission and communication, seriously affecting local industrial and agricultural production, and causing serious economic losses

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