Ceramic halogen-free low-smoke fire-resistant cable

Abstract

The invention discloses a ceramic halogen-free low-smoke fire-resistant cable. The cable comprises a plurality of cable lines with the same structure, an insulating layer, an isolation layer and a plurality of outer protection layers with the same structure, wherein the insulating layer wraps the plurality of cable lines, the isolation layer wraps the insulating layer, the outer protection layerswrap the isolation layer, connection fastening mechanisms are installed among the plurality of outer protection layers, and a fire-extinguishing isolation mechanism is wrapped in each connection fastening mechanism. The ceramic halogen-free low-smoke fire-resistant cable is firm in structure and easy to install; the outer protection layers made of a ceramic material are tightly connected through the connection fastening mechanisms, the installation length of a single outer protection layer is shortened, and therefore installation is more convenient; meanwhile, through each fire-extinguishing isolation mechanism arranged on a single outer protection layer, the fire behavior is effectively isolated and controlled within the length of a single outer protection layer; and moreover, by adding halogen-free low-smoke TPE rubber into the insulating layer, the cable cannot generate a large amount of smoke in a fire, and the problems that the visual field of a rescuer is influenced and the health of the rescuer is harmed are avoided.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a ceramic halogen-free low-smoke fire-resistant cable. Background technique [0002] The cable is usually a rope-like cable twisted by several or several groups of wires (at least two in each group). Each group of wires is insulated from each other and is often twisted around a center. Insulating covering. The cable has the characteristics of internal electrification and external insulation. Cables include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multi-strand wires and insulation layers, and are used to connect circuits, electrical appliances, etc. [0003] Existing cables are usually composed of cables wrapped by an insulating layer, usually made of rubber, which h...

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Problems solved by technology

[0003] Existing cables are usually composed of cables wrapped by an insulating layer, usually made of rubber, which has a single function and poor fireproof performance, and produces a lot of smoke during the burning process, which will affect the vision of rescuers and affect their safety. The body is healthy, and the length of the existing cable is long. Usually, the method of blowing the cable is used when installing it into the casing to cause bending. It requires multiple sets of equipment to complete the cable, thus increasing the cost of the equipment, and the length is long It is also inconvenient for personnel to operate. In view of this, in-depth research on the above-mentioned problems led to this case.

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