Composite Cable Tray Box for Rail Transit

Abstract

The invention provides a novel composite material cable trough box for rail transit. The novel composite material cable trough box comprises a cable trough body (1) and a cable trough cover (2) which covers the upper surface of the cable trough body (1), wherein the cable trough box is prepared from the following components in parts by weight by virtue of a pultrusion process: 15-35 parts of unsaturated polyester resin, 15-35 parts of aluminum hydroxide micro powder, 40-70 parts of glass fiber, 0.5-1.5 parts of mold releasing agent, 0.1-0.2 part of ultraviolet absorbent and 3-10 parts of additives. The cable trough box provided by the invention has the advantages of high flame-retardant performance, low smoke toxicity, high strength, low density, good aging resistance, convenience in assembly, low cost, short production cycle and the like.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a composite material cable trough used for urban rail transit. Background technique [0002] With the progress of society, the development of science and technology, and the acceleration of urbanization in all parts of the country, the construction of urban rail transit has also entered a stage of rapid development. In the construction of rail transit, a large number of cables and signal lines need to be laid on the whole line, so the safety protection of cables has been paid more and more attention by people. The cable protection grooves currently used in rail transit are made of cement, which has the following disadvantages in actual use: [0003] 1. The durability is poor. Due to the outdoor environment, cement products are easily damaged by environmental erosion and freeze-thaw, which limits the use area; [0004] 2. The cement cable trough has microscopic holes, which...

AI Technical Summary

Problems solved by technology

[0003] 1. The durability is poor. Due to the outdoor environment, cement products are easily damaged by environmental erosion and freeze-thaw, which limits the use area;

[0004] 2. The cement cable trough has microscopic holes, which are easy to absorb water in a humid environment, and have a great impact on the internal cables and cables. Once short-circuited, there is a risk of accidents;

[0005] 3. The distance between each section of the cement cable duct is only 3-5 meters, but each section weighs more than 200kg. The weight is too heavy, and the installation is very inconvenient. It needs to be installed and transported by lifting machinery, and there are requirements for the load-bearing design of the elevated line;

[0006] 4. It is inconvenient to maintain and replace the cement cable trough in the later stage, and the production cycle is about 1 month

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