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High temperature and severe cold resistant cable

A high temperature resistant and cable technology, applied in the direction of insulated cables, bendable cables, cables, etc., can solve problems that affect the safe operation of transmission lines, cable deicing jumps, phase short circuits, etc., to reduce ice disasters and improve safety and reliability , the effect of small bending radius

Inactive Publication Date: 2018-06-29
XIAN RENKE ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Freezing rain and icing seriously affect the safe operation of transmission lines. Freezing rain and icing can easily lead to faults such as cable deicing and jumping, phase-to-phase short circuit, and conductor collision with lightning protection wires.

Method used

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  • High temperature and severe cold resistant cable

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Effect test

Embodiment 1

[0022] Such as figure 1 The high temperature and cold resistant cable shown includes a conductor 1, an insulating layer 2, and a braiding layer 3. The insulating layer 2 is covered on the conductor 1. The conductor 1 and the insulating layer 2 form an insulated core. The insulated core has 6 group; the cable also includes a filling core 4, the filling core 4 is located in the center of the cable, and the 6 sets of insulated cores are wrapped around it; the stranded pitch-to-diameter ratio of the insulated cores is 10-15. The material of the insulating layer 2 is a modified cross-linked ethylene-tetrafluoroethylene copolymer material. Using cross-linked ethylene-tetrafluoroethylene copolymer as the insulating layer, the cable is more resistant to high temperature and cold.

[0023] After the insulated wire core is cabled, it is wrapped around the cladding 5, which is a fire-resistant rubberized glass cloth tape. The braiding layer 3 is wound around the outer periphery of the ...

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Abstract

The invention belongs to the technical field of power cables, and specifically relates to a high temperature and severe cold resistant cable. The high temperature and severe cold resistant cable comprises conductors, insulating layers and a braided layer, wherein the conductors are coated with the insulating layers, the conductors and the insulating layers form insulating wire cores, and there aresix insulating wire cores; the cable further comprises a filling core, the filling core is located at the center of the cable and externally wrapped with the six insulating wire cores; the insulatingwire cores are cabled and then externally wrapped with a wrapping layer, the braided layer is wound at the periphery of the wrapping layer, and the braided layer is externally coated with a graphenecoating; each conductor is stranded by a plurality of silver-plated copper magnesium alloy monofilaments in a compressed manner, and the diameter of the silver-plated copper magnesium alloy monofilaments is 0.055mm; and the filling core is high-strength flame retardant aramid fiber strand twisted filaments. The cable has the characteristics of high temperature and severe cold resistance, and alsohas the advantages of light weight, oxidation resistance, high tensile strength, good electrical conductivity, long service life and the like.

Description

technical field [0001] The invention belongs to the technical field of power cables, and in particular relates to a high-temperature and high-cold-resistant cable. Background technique [0002] Freezing rain and icing seriously affect the safe operation of transmission lines. Freezing rain and icing can easily lead to faults such as cable deicing and jumping, phase-to-phase short circuit, and conductor collision with lightning protection wires. Power grid difficulties caused by heavy snowstorms, freezing rain, and icing, as well as railway paralysis caused by grid collapse, all seriously threaten the safety of people's property. [0003] In addition, the temperature of signal cable installation parts of heating elements such as engines and generators in aerospace, ships, etc. will reach above 200°C, sometimes even above 500°C. Ordinary polyolefin insulation and jacket materials melt instantly. Contents of the invention [0004] In order to solve the above-mentioned probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/02H01B3/44H01B7/04H01B7/17H01B7/18H01B7/28H01B7/282H01B7/29H01B7/295
CPCY02A30/14H01B1/026H01B3/441H01B3/445H01B7/043H01B7/17H01B7/18H01B7/28H01B7/2825H01B7/29H01B7/295
Inventor 王刚周娜娜
Owner XIAN RENKE ELECTRONICS TECH CO LTD
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