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Novel fire-resistant cable having stable internal structure

A technology of internal structure and fire-resistant cables, which is applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of unable to guarantee the safety of cables for a long time, poor structural reliability, and easy relative displacement of conductive cores, etc., to achieve reliable fire and flame retardancy , High structural reliability, and the effect of preventing open flames from burning

Inactive Publication Date: 2015-09-23
ANHUI TIANYUAN CABLE
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Problems solved by technology

[0002] Most of the current fireproof cables use conductive cores directly installed in the insulating body. The cables in the prior art directly embed the conductive cores in the insulating body. Especially in fireproof cables, there are many fireproof structures and materials for fire prevention, and the structural reliability is poor; the existing fireproof cables can only play the role of fire resistance and heat insulation for a short time, and cannot guarantee the safety of cables for a long time

Method used

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  • Novel fire-resistant cable having stable internal structure

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Embodiment Construction

[0013] Referring to the accompanying drawings, a new type of fire-resistant cable with a stable internal structure includes a cable core 1 and an outer insulating layer 2 wrapped on the cable core. A shielding layer 102, an inner insulating layer 103 is arranged outside the inner shielding layer 102, an outer shielding layer 104 is arranged outside the inner insulating layer 103, and a fireproof and refractory silicone rubber composite layer 105 is arranged outside the outer shielding layer 104; the cable core 1 is provided with A plurality of them are evenly distributed around the circumference of each other, and partitions 3 are arranged between the plurality of cable cores to divide and fix them. 4. The filling layer 4 is provided with a second fireproof and refractory silicone rubber composite layer 5, the second fireproof and refractory silicone rubber composite layer 5 is provided with a refractory layer 6, and the refractory layer 6 is provided with steel tape armoring ...

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Abstract

The invention discloses a novel fire-resistant cable having a stable internal structure. The novel fire-resistant cable comprises cable cores and an external insulation layer wrapping the cable cores, wherein an inner shielding layer is arranged outside each cable core after a plurality of conductors twisted around the cable core, an internal insulation layer is arranged outside the inner shielding layer, an outer shielding layer is arranged outside the internal insulation layer, a fire-resistant silicone rubber composite layer is arranged outside the outer shielding layer, the plurality of cable cores are uniformly distributed around a circle, a packing layer is arranged among the plurality of cable cores, a fire-resistant silicone rubber composite layer is arranged outside the packing layer, a fire-resistant layer is arranged outside the fire-resistant silicone rubber composite layer, a steel-tape armoring layer is arranged outside the fire-resistant layer, and the external insulation layer wraps the outside of the steel-tape armoring layer. The novel fire-resistant cable has the advantages of difficulty in relative displacement of conductive core capacity, compact structure, high reliability, high fire resistance and heat insulation performance, no toxicity and low cost.

Description

technical field [0001] The invention relates to the technical field of cable production, in particular to a novel fire-resistant cable with a stable internal structure. Background technique [0002] Most of the current fireproof cables use conductive cores directly installed in the insulating body. The cables in the prior art directly embed the conductive cores in the insulating body. Especially in fireproof cables, there are many fireproof structures and materials for fire prevention, and the structural reliability is poor; the existing fireproof cables can only play the role of fire resistance and heat insulation for a short time, and cannot guarantee the safety of cables for a long time . Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a new type of fire-resistant cable with stable internal structure, whose conductive core is not easy to be displaced relative to each other, has a compact structure and ...

Claims

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Application Information

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IPC IPC(8): H01B7/295H01B7/02H01B7/22
Inventor 沈升友杨玉双金德胜朱李红
Owner ANHUI TIANYUAN CABLE
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