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Corrugated metal sheath inorganic mineral insulation cable and method for producing the same

A technology of metal sheath and inorganic minerals, applied in the direction of insulated cables, inorganic insulators, cable/conductor manufacturing, etc., can solve the problems of easy bending of wires and cables, achieve the effects of reducing property losses, easy installation, and improving safety factor

Inactive Publication Date: 2009-05-13
张荣生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the technical problem that the wire and cable can be fireproof and easy to bend

Method used

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  • Corrugated metal sheath inorganic mineral insulation cable and method for producing the same
  • Corrugated metal sheath inorganic mineral insulation cable and method for producing the same
  • Corrugated metal sheath inorganic mineral insulation cable and method for producing the same

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Embodiment Construction

[0030] Embodiment referring to Fig. 1, figure 2 As shown, this corrugated metal sheathed inorganic mineral insulated cable is composed of an inner cable core, an insulating layer 2 wound outside the cable core and an outermost metal sheath 3. The cable core is composed of a bunch of The wire is twisted, the insulating layer 2 is an inorganic mineral insulating tape, the metal sheath 3 is a copper bellows, the corrugation of the copper bellows has an upper peak 4 and a lower valley 5, the length of the cable core, the insulating layer, and the copper bellows In order to be equivalent, the surface of the copper bellows has a weld 6 equal to its length along the axial direction. The above-mentioned cable core is a single-core cylindrical cable core 1, 6-8 layers of insulating layers 2 are wound outside the cable core, and the number of wires per core is 1 to 61.

[0031] The wires may be copper wires, copper alloy wires or lead wires. The length of the copper bellows can be fro...

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Abstract

The invention discloses a corrugated metallic sheath inorganic mineral insulated cable and a manufacturing method thereof. The cable consists of an inner cable core, an insulating layer winding the outside of the cable core, and an outermost metallic sheath; the cable core is formed by twisting a bundle of copper wires, the insulating layer is an inorganic mineral insulated tape, the metallic sheath is a copper corrugated tube, corrugation of the copper corrugated tube has upper peaks and lower valleys, the cable core, the insulating layer and the copper corrugated tube have the same length, and the surface of the copper corrugated tube is provided with a welding seam with the same length of the copper corrugated tub along the axial direction. As the cable takes a corrugated shape, the cable is easy to be bent and mounted in a laying field, which lowers the construction cost, can prevent a cable conductor and the insulating layer from being directly burnt by flame, prevents a phase and phase conductor from short circuit, and prevents elevators and fire fighting devices from being incapable of operating without power supply, thus obtaining precious time to facilitate persons to escape in time, and reduce property loss.

Description

technical field [0001] The invention belongs to a wire and cable and a manufacturing method thereof, in particular to a fireproof cable and a manufacturing method thereof. Background technique [0002] At present, in the wires and cables used for laying in buildings, there is no corrugated metal sheathed inorganic mineral insulated cable that can prevent the conductor and insulating layer from burning out when the flame is burning. Whenever a fire breaks out in a building, ordinary wires and cables, because the insulating materials on the surface are not fire-resistant, will melt when exposed to open flames or high temperatures, resulting in a short circuit between the phases of the cable, which can no longer be used normally, resulting in Unnecessary property loss, and even death due to unusable elevators and fire-fighting facilities. Contents of the invention [0003] The object of the present invention is to provide a corrugated metal sheathed inorganic mineral insulat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/20H01B3/02H01B13/00H01B13/08H01B13/22
Inventor 毛汉文张荣生戚永兴
Owner 张荣生
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