A multi-protection function cable

Abstract

The invention discloses an innovative multi-protective function cable. The innovative multi-protective function cable comprises a conductor layer, a silica rubber layer arranged at the exterior of the conductor layer, an anti-biting layer arranged at the exterior of the silica rubber layer and an anti-freezing rain layer arranged at the exterior of the anti-biting layer, wherein the conductor layer comprises at least one conductor, wherein any one of the conductors is coated with a heat insulation layer, wherein the heat insulation layer is glass moving fabric or a casing which has been subjected to MQ silicon resin impregnation. The anti-biting layer comprises the following two groups of components in part by weight: 1) group A: 100 parts of silicon rubber, 10 parts of anti-feedant compound, 25 parts of inorganic filler, and 6 parts of hydroxyl silicone oil; and 2) group B: 0.5 to 0.8 part of vulcanizing agent. With the innovative multi-protective function cable of the invention adopted, rodents can be prevented from biting the cable, and therefore, the cable can adapt to a larger environment temperature range, and the application range of the cable can be extended, and the quality of the cable can be improved, and creepage trace can be detected in real time, and glazed frost, supercooled water, freezing rain and snow can be prevented from being attached on the surface of the cable.

Description

technical field [0001] The invention belongs to the field of power cables, and in particular relates to a multi-protection function cable. 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. For example, in order to prevent biting rodents from biting, the anti-biting layer, insulating silicone layer and so on. [0003] At present, there are mainly the following methods for the design of the anti-biting layer of the cable: 1. A...

AI Technical Summary

Problems solved by technology

However, cables in the field are usually erected high in the sky or laid underground, which is not conducive to the staff to carry out circuit maintenance, and there are potential safety hazards

[0007] In addition, cables in the field 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 cable power grids, mainly manifested in a wide range of influence, causing mechanical damage to the power grid, such as 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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