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Aluminum alloy conductor cross-linked polyethylene insulation interlocking armored flame-retardant power cable

A technology of aluminum alloy conductor and cross-linked polyethylene, applied in power cables, insulated cables, conductors, etc., can solve the problems of fire, wire and cable short circuit, poor flame retardant effect of wire and cable, etc., to improve compatibility, improve Flame retardancy, improved barrier effect

Active Publication Date: 2021-11-09
GUIZHOU XINSHUGUANG CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the existing cables are used, the flame retardant effect of the wires and cables is not good, which leads to short circuits and fires in the wires and cables during use.

Method used

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  • Aluminum alloy conductor cross-linked polyethylene insulation interlocking armored flame-retardant power cable
  • Aluminum alloy conductor cross-linked polyethylene insulation interlocking armored flame-retardant power cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of flame retardant:

[0036] S1: Vacuumize the reaction kettle, and after nitrogen is introduced, add magnesium powder and tetrahydrofuran into the reaction kettle, adjust the temperature to minus 15°C, and then slowly add (chloromethyl)trichlorosilane and tetrahydrofuran dropwise to control the magnesium powder and tetrahydrofuran. . The dosage ratio of (chloromethyl)trichlorosilane is 1.25g: 25mL: 3.62mL. After the dropwise addition, the temperature is raised to 55°C, and the reaction is carried out for 2.5h to obtain intermediate A;

[0037] S2: Slowly add ethynylmagnesium bromide solution dropwise to intermediate A, keep the temperature at 0-5°C, raise the temperature to 65-68°C after the dropwise addition, stir and react for 14 hours, cool to minus 10°C after the reaction, and then Add lithium aluminum hydride, stir and react for 12 hours, and finally add hydrochloric acid solution dropwise. Set for 5 hours, centrifuge and wash 5 times after the reacti...

Embodiment 2

[0042] Preparation of flame retardant:

[0043] S1: Vacuumize the reaction kettle, and after nitrogen gas is introduced, add magnesium powder and tetrahydrofuran into the reaction kettle, adjust the temperature to minus 10°C, and then slowly add (chloromethyl)trichlorosilane and tetrahydrofuran dropwise to control the magnesium powder and tetrahydrofuran. . The dosage ratio of (chloromethyl)trichlorosilane is 1.25g: 25mL: 3.62mL. After the dropwise addition, the temperature is raised to 60°C, and the reaction is carried out for 2.7h to obtain intermediate A;

[0044] S2: Slowly add ethynylmagnesium bromide solution dropwise to intermediate A, keep the temperature at 3°C, raise the temperature to 66.5°C after the dropwise addition, stir and react for 16 hours, cool to minus 7°C after the reaction, and then add aluminum tetrahydrogen Lithium, stirred and reacted for 13 hours, and finally added hydrochloric acid solution dropwise, controlling the dosage ratio of intermediate A, e...

Embodiment 3

[0049] Preparation of flame retardant:

[0050] S1: Vacuumize the reaction kettle, and after feeding nitrogen, add magnesium powder and tetrahydrofuran into the reaction kettle, adjust the temperature to minus 5°C, and then slowly add (chloromethyl)trichlorosilane and tetrahydrofuran dropwise to control the magnesium powder and tetrahydrofuran. . The dosage ratio of (chloromethyl)trichlorosilane is 1.25g: 25mL: 3.62mL. After the dropwise addition, the temperature is raised to 65°C, and the reaction is carried out for 3 hours to obtain intermediate A;

[0051] S2: Slowly add ethynylmagnesium bromide solution dropwise to intermediate A, keep the temperature at 5°C, raise the temperature to 68°C after the dropwise addition, stir and react for 18h, cool to minus 5°C after the reaction, and then add aluminum tetrahydrogen Lithium, stirring and reacting for 14 hours, and finally adding hydrochloric acid solution dropwise, controlling the dosage ratio of intermediate A, ethynylmagnes...

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Abstract

The invention relates to an aluminum alloy conductor cross-linked polyethylene insulation interlocking armored flame-retardant power cable, and belongs to the technical field of cables. The aluminum alloy conductor cross-linked polyethylene insulation interlocking armored flame-retardant power cable comprises wire cores, each wire core comprises an aluminum alloy conductor, and an insulating layer is extruded outside the aluminum alloy conductor; a filling layer is filled among the wire cores, a wrapping layer is arranged outside the filling layer, and an inner lining layer is extruded outside the wrapping layer; the outer side of the lining layer is covered with an interlocking armor layer, and the outer side of the interlocking armor layer is provided with an outer sheath. By using aluminum alloy conductor, and compared with a cable with a copper conductor, the cable with the aluminum alloy conductor has the advantages of being lighter, more flexible, more energy-saving and more economical than the cable with the copper conductor, and compared with an aluminum core cable, the cable with the aluminum alloy conductor overcomes the defects that the aluminum core cable is poor in mechanical performance, bending performance, creep resistance and corrosion resistance, and therefore the cable with the aluminum alloy conductor is safer.

Description

technical field [0001] The invention belongs to the technical field of electric cables, and relates to an aluminum alloy conductor cross-linked polyethylene insulated interlocking armored flame-retardant power cable. Background technique [0002] Aluminum alloy low-voltage power cables are mainly used in construction, industrial engineering and new energy engineering. Compared with copper cables, aluminum alloy cables are lighter, more flexible, more energy-efficient, and far more economical than copper cables. Compared with aluminum core cables, aluminum alloy cables overcome the shortcomings of aluminum core cables in terms of mechanical properties, bending properties, creep resistance, and corrosion resistance, making them safer and loved by users. [0003] However, when the existing cables are in use, the flame retardant effect of the wires and cables is not good, which leads to the short circuit and fire of the wires and cables during use. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/00H01B3/44H01B7/02H01B7/04H01B7/28H01B7/295
CPCH01B9/00H01B7/02H01B7/295H01B7/04H01B7/2806H01B7/28H01B3/441Y02A30/14
Inventor 余宇田德鑫吴俊德申进潘刚吴明超
Owner GUIZHOU XINSHUGUANG CABLE CO LTD
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