Flame-retardant cable and manufacturing method thereof

Abstract

The invention discloses a flame-retardant cable and a manufacturing method thereof.The flame-retardant cable comprises a main cable core, the surface of the main cable core is sleeved with an inner side outer sleeve, the surface of the inner side outer sleeve is sleeved with an inner supporting structure, outer supporting structures are embedded in the four corners of the inner supporting structure, and auxiliary cable cores are arranged in the outer supporting structures in a penetrating mode; the outer sides of the four outer supporting structures are sleeved with inner layer sleeves. The outer supporting structure is installed between the inner layer sleeve and the inner supporting structure, so that an open area can be formed between the inner supporting structure and the inner layer sleeve, fire spreading is delayed, enough time can be gained, a user can conveniently conduct first-aid repair, and compared with a traditional mode that a flame-retardant material is made into an installation part, the installation part is more convenient to use. The surface of the structural component is coated with the flame-retardant coating, the flame-retardant effect is guaranteed, meanwhile, material input can be saved, the cost is reduced, the manufacturing steps are reduced, and the manufacturing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of flame-retardant cables, in particular to a flame-retardant cable and a manufacturing method thereof. Background technique [0002] Flame-retardant cable refers to the cable that the sample is burned under the specified test conditions. After the test fire source is removed, the spread of the flame is only within a limited range, and the residual flame or residual flame can extinguish itself within a limited time. The fundamental characteristic is: it may be burned out and cannot operate in case of fire, but it can prevent the spread of fire. In layman's terms, in the event of a wire fire, it can limit the combustion to a local area without spreading, keep other various equipment, and avoid greater losses. [0003] Traditional flame retardant cables have the following defects: [0004] 1. Its tight connection structure, and when the cable burns, it is easy to cause the fire to spread, causing the entire ...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a flame-retardant cable and its manufacturing method, which can effectively block the spread of fire, provide users with enough repair time, reduce costs, and improve efficiency. When burning, it is easy to cause the fire to spread, causing the entire structure of the cable to be melted and destroyed by high temperature, and even the equipment close to the cable will be affected. Rescue other nearby equipment. In the traditional cable manufacturing process, the steps are cumbersome and many materials are used. The required flame-retardant materials also need to be processed and shaped by hot-melt equipment and injection molding equipment. The input cost is high and the efficiency is low. question

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