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Inorganic mineral insulated high-flame-retardant fireproof cable and preparation method thereof

An inorganic mineral, fireproof cable technology, used in insulated cables, cable/conductor manufacturing, power cables, etc., can solve the problems of poor high temperature resistance, poor flame retardancy, inconvenient construction, etc., and achieve long service life, good fire resistance, The effect of convenient construction for workers

Inactive Publication Date: 2021-10-08
DONGGUAN MINXING CABLES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of cable only has one layer of heat insulation and flame retardant layer, which has the problems of poor high temperature resistance and poor flame retardancy
[0003] In the prior art, in addition to cables, photovoltaic power plants also need to install optical cables for communication. However, two types of cables, optical cables and electric cables, need to be laid. Therefore, in the prior art, cables and optical cables are laid separately. Messy and inconvenient for construction

Method used

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  • Inorganic mineral insulated high-flame-retardant fireproof cable and preparation method thereof
  • Inorganic mineral insulated high-flame-retardant fireproof cable and preparation method thereof
  • Inorganic mineral insulated high-flame-retardant fireproof cable and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0023] One of the specific implementations of an inorganic mineral insulated high flame retardant fireproof cable and its preparation method of the present invention, please see figure 1 , including an optical fiber core and a plurality of conductor cores; each conductor core is closely attached to the optical fiber core, and multiple conductor cores are evenly distributed along the circumference of the optical fiber core to form a cable core; each conductor core includes The copper conductor 21 and the inner sheath 22 arranged in sequence to the outside; the optical fiber core includes a metal bellows 13, and at least one optical fiber body 11 is arranged in the metal bellows 13, and an optical fiber oil is arranged between the optical fiber body 11 and the metal bellows 13 Paste 12; the outer peripheral side of the cable core is provided with a corrugated copper sheath 32, the outer side of the corrugated copper sheath 32 is extruded with an outer sheath 33, and the gap betwe...

Embodiment 2

[0043] An inorganic mineral insulated high flame retardant and fireproof cable of the present application, the main technical solution of this embodiment is the same as that of embodiment 1, and the features not explained in this embodiment are explained in embodiment 1, and are not mentioned here Let me repeat. The difference between this embodiment and Embodiment 1 is that the inorganic mineral powder 31 is made of the following raw materials in weight fractions: 60 parts of calcium carbonate, 30 parts of silica sol, 15 parts of magnesium oxide, and 15 parts of zinc oxide.

Embodiment 3

[0045] The third of an inorganic mineral insulated high flame retardant and fireproof cable of the present application, the main technical solution of this embodiment is the same as that of embodiment 1, and the features not explained in this embodiment adopt the explanation in embodiment 1, and are not mentioned here Let me repeat. The difference between this embodiment and Embodiment 1 is that the inorganic mineral powder 31 is made of the following raw materials in weight fractions: 70 parts of calcium carbonate, 40 parts of silica sol, 60 parts of magnesium oxide, and 30 parts of zinc oxide.

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Abstract

The invention relates to the technical field of cables, in particular to an inorganic mineral insulated high-flame-retardant fireproof cable and a preparation method thereof. The inorganic mineral insulated high-flame-retardant fireproof cable comprises an optical fiber wire core and a plurality of conductor wire cores; each conductor wire core is tightly attached to the optical fiber wire core, and the plurality of conductor wire cores are uniformly distributed along the circumferential direction of the optical fiber wire core to form a cable core; each conductor wire core comprises a copper conductor and an inner sheath which are sequentially arranged from inside to outside; the optical fiber wire core comprises a metal corrugated pipe, at least one optical fiber body is arranged in the metal corrugated pipe, and optical fiber ointment is arranged between the optical fiber body and the metal corrugated pipe; an embossed copper sheath is arranged on the peripheral side of the cable core, an outer sheath is extruded on the outer side of the embossed copper sheath, and inorganic mineral powder is filled between the embossed copper sheath and the peripheral side surface of the cable core. The corrugated copper sheath and the inorganic mineral powder are arranged in the cable, so that a double-layer flame-retardant structure is formed on the outer side of the cable core, and the fireproof, high-temperature-resistant and high-flame-retardant performance of the cable is enhanced.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to an inorganic mineral-insulated high flame-retardant and fireproof cable and a preparation method thereof. Background technique [0002] Patent CN201610843957.1 discloses a photovoltaic cable, which sequentially includes a cable core, at least one insulating layer, a fiber braiding layer, at least one heat-insulating flame-retardant layer, and at least one sheath layer from the inside to the outside; the cable core It is an inner and outer double-layer structure, the inner layer is a cylindrical conductor of carbon fiber wire as a reinforced structure, and the outer layer is a wrapping layer made of copper-clad aluminum-magnesium alloy material. This kind of cable is only provided with one layer of heat-insulating and flame-retardant layer, which has the problems of poor high temperature resistance and poor flame retardancy. [0003] In the prior art, in addition to cables, photov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/29H01B7/295H01B9/00H01B11/22H01B13/00H01B13/22H01B7/02
CPCH01B7/02H01B7/295H01B7/29H01B13/00H01B9/005H01B11/22H01B13/22
Inventor 胡润逸黄泽
Owner DONGGUAN MINXING CABLES