Copper-clad aluminum-core anti-flaming fire-resistant control cable

Abstract

The invention relates to a copper-clad aluminum-core anti-flaming fire-resistant control cable composed of a guide core bundle or multiple guide core bundles cabled. The copper-clad aluminum guide cores are extruded with fluorine 46 insulation layers and then covered with a silicone rubber fire-resistant layer in cabling manner. A copper wire shield layer sparsely winds the fire-resistant layer and is externally extruded with a halogen-free polyolefin inner sheath. A self-locking steel-tape armoring layer is arranged outside the inner sheath and further arranged inside a polyvinyl chloride outer sheath. A space between the cabled guide cores and the fire-resistant layer is filled with glass fibers. The control cable is good in fire-resistance and anti-flaming effect and can run above three hours in case of the fire, and owing to the guide cores being made of copper-clad aluminum material, mass copper resources are saved.

Description

technical field [0001] The invention relates to the field of cables, in particular to a copper-clad aluminum-core flame-retardant and fire-resistant control cable. Background technique [0002] With the development of society and economy, the demand for cables is increasing, and the competition in the industry is fierce, which leads to the high cost of wires and cables. Due to the lack of copper resources, the pure copper core cable is easily affected by the international market, and its weight is relatively heavy, which is inconvenient in transportation and on-site construction. On the other hand, the application of wire and cable is growing rapidly. From the tragic lessons of electrical fire accidents, people realize that it is very important to maintain a stable operating state for a certain period of time in the event of a fire. In recent years, fire-resistant cables have been highly valued, and more and more fire-resistant cable products have come out. In order to mai...

AI Technical Summary

Problems solved by technology

[0002] With the development of social economy, the demand for cables is increasing, and the competition in the industry is fierce, which leads to the high cost of wires and cables.

Due to the lack of copper resources, pure copper core cables are easily affected by the international market, and the weight is heavy, which is inconvenient in transportation and on-site construction.

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