Environment-friendly composite high-voltage electric power cable for smart power grid and preparation method thereof

Abstract

The invention discloses an environment-friendly composite high-voltage electric power cable for a smart power grid and a preparation method thereof. The environment-friendly composite high-voltage electric power cable comprises a cable core, wherein a halogen-free high-fire-retardant glass cord filling layer is arranged at the gaps of the cable core, the cable core is wrapped with a halogen-free high-fire-retardant glass fiber tape wrapping layer and an extruded polyethylene inner sheath, the inner sheath is wrapped with a galvanized steel strip spiral armor layer with a clearance therebetween, and a thermoplastic halogen-free low-smoke high-fire-retardant polyolefin outer sheath is extruded at the outermost layer; and the cable core is formed by a communication optical fiber, three power cables and three temperature measurement sensing cables twisted together. The cable is good in insulating performance and mechanical performance, and stable in power transmission, online monitoring and communication transmission, also has the high-fire-retardant, halogen-free, low-smoke and environment-friendly properties, is reasonable in structure and excellent in comprehensive performance, and has better product performance indexes than international standards and good social and economical benefits.

Description

Technical field [0001] The invention involves a multi -functional high -voltage power cable for an environmentally friendly smart grid for composite structure. It is specifically for the application of the power transmission of power grids, optical fiber communication, and optical fiber online monitoring systems for the application of power grids.Cable and its preparation method. Background technique [0002] With the development and advancement of the construction of smart grids, the automated control of the distribution network, the remote collection of power transmission information, the online detection of the cable operation status, and the intelligent construction of smart grids such as the two -way interaction between the power grid and the power users require power information communication.Develop towards high -speed, reliable, and safe directions.Optical fiber has the function of broadband high -speed communication, and has strong anti -electromagnetic interference. The...

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Problems solved by technology

[0004] At present, there is no professional manufacturer of this product in China; the traditional production technology is backward, the structural design is unreasonable, and the yield is low; in addition, the requirements for high flame retardancy and environmental protection of cables are getting higher and higher in recent years, resulting in many manufacturers due to current Without technology, it is impossible to design and produce intelligent and environmentally friendly medium-voltage power cable products that meet technical requirements

And the production process has the following problems: 1, the processing capacity is large, and the production cost is high

2. It is not conducive to laying and management, and the risk factor is large

3. Difficult assembly of finished products and long production cycle

4. The structure is unreasonable and the laying area is large

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