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Fire-resistant and high-temperature-resistant control cable and manufacturing method thereof

A control cable and high-temperature-resistant technology, which is applied in the field of power cables, can solve the problems of cables such as fire resistance, poor high-temperature resistance, insufficient tensile and pressure-bearing capabilities, and achieve excellent electrical insulation, improved heat resistance, and extrusion molding The effect of simple process

Active Publication Date: 2022-02-22
TIANCHANG HUILING ELECTRIC APPLIANCE METER FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing cables have poor fire resistance, high temperature resistance, and insufficient tensile and pressure bearing capacity

Method used

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  • Fire-resistant and high-temperature-resistant control cable and manufacturing method thereof
  • Fire-resistant and high-temperature-resistant control cable and manufacturing method thereof
  • Fire-resistant and high-temperature-resistant control cable and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A fire-resistant and high-temperature-resistant control cable, comprising a plurality of sets of conductors 1, including a heat dissipation strengthening tube 2, the conductor 1 is covered with an insulating layer 4 to form an insulated wire core, and a plurality of insulated wire cores are covered with a braided shielding layer 3, braided The shielding layer 3 is covered with a high temperature resistant loose tube 5 to form the main wire core. Multiple main wire cores are combined and covered with a fireproof heat insulation layer 6, a flame retardant inner sheath 7, a braided armor layer 8 and a flame retardant outer sheath. The sheath 9 and the heat dissipation strengthening tube 2 are located between multiple main wire cores. The heat dissipation strengthening pipe 2 is equidistantly fixedly connected with a plurality of support frames 10 .

[0038] Wherein, the heat dissipation strengthening tube 2 is a polytetrafluoroethylene hose, and the outer peripheral wall of...

Embodiment 2

[0046] A method for preparing a fire-resistant and high-temperature-resistant control cable, comprising the following specific implementation steps:

[0047] Step 1, twisting a plurality of nickel-plated copper wires to form a conductor 1;

[0048] Step 2, extruding a layer of ceramic silicon rubber on the outer periphery of the conductor 1 to form an insulating layer 4, and the insulating layer 4 and the conductor 1 form an insulating core;

[0049] Step 3: Twisting a plurality of insulated wire cores to form an encapsulation body and covering the braided layer of silver-plated copper wire to form the braided shielding layer 3; the braided shielding layer 3 is covered with a high-bulk glass fiber tube, and coated with oxidized Iron-red silica gel forms a high-temperature-resistant loose tube 5; the package body, braided shielding layer 3, and high-temperature loose tube 5 form the main core;

[0050] Step 4: Set a plurality of ventilation holes 11 on the polytetrafluoroethyl...

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Abstract

The invention discloses a fire-resistant and high-temperature-resistant control cable, which comprises a plurality of sets of conductors, including heat-dissipating strengthening tubes, the conductors are covered with an insulating layer to form an insulated wire core, and a plurality of insulated wire cores are covered with a braided shielding layer, and the braided shielding The outer layer is covered with a high-temperature resistant loose tube to form the main core, and multiple main cores are combined and coated with a fireproof heat insulation layer, a flame-retardant inner sheath, a braided armor layer, and a flame-retardant outer sheath, and the heat dissipation strengthening tube Located between multiple main wire cores, multiple support frames are equidistantly fixedly connected to the heat dissipation strengthening tube, and the interior of the fireproof and heat insulation layer is also filled with heat-insulating and flame-retardant particles; a polytetrafluoroethylene material is set between multiple main wire cores The heat dissipation strengthening tube has a fine appearance structure, no mechanical impurities and high strength. The main core is located in the central gap of multiple main cores, which increases the structural stability, tensile performance and high temperature resistance of the cable; and through the surface of the heat dissipation strengthening tube Multiple ventilation holes can play a role in heat dissipation and improve the internal heat resistance of the cable.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a fire-resistant and high-temperature-resistant control cable and a manufacturing method thereof. Background technique [0002] Fire-resistant cables refer to cables that can maintain safe operation for a certain period of time under the condition of flame burning. Fire-resistant cables are widely used in high-rise buildings, underground railways, underground streets, large power stations, important industrial and mining enterprises and other places related to fire safety and fire-fighting and lifesaving, such as power supply lines and control lines of emergency facilities such as fire-fighting equipment and emergency guide lights. [0003] The existing cables have poor fire resistance and high temperature resistance, and insufficient tensile and pressure bearing capacity. Contents of the invention [0004] The object of the present invention is to provide a fire-resistan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B9/00H01B7/00H01B7/02H01B7/18H01B7/22H01B7/28H01B7/29H01B7/295H01B7/42H01B13/14H01B13/22
CPCH01B9/006H01B7/0009H01B7/421H01B7/1815H01B7/28H01B7/292H01B7/295H01B7/0275H01B7/228H01B7/2806H01B13/148H01B13/22Y02A30/14
Inventor 朱从林陆秀国李正宝杨金花陆丛林
Owner TIANCHANG HUILING ELECTRIC APPLIANCE METER FACTORY
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