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Flame-retardant and cold-resistant power feeding and signal cable and preparation method thereof

Inactive Publication Date: 2018-03-09
HENGYANG HENGFEI CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problems of core breakage, poor anti-interference ability and easy sheath layer when the existing feeder and signal cables are subjected to external force stretching, torsion and frequent movement and bending under low temperature conditions.

Method used

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  • Flame-retardant and cold-resistant power feeding and signal cable and preparation method thereof
  • Flame-retardant and cold-resistant power feeding and signal cable and preparation method thereof
  • Flame-retardant and cold-resistant power feeding and signal cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Such as figure 2 Shown: a flame-retardant and cold-resistant power feed and signal cable, including a central conductor 5, an inner lining 6 wrapping the central conductor 5, 6 sets of 3-core twisted conductors 7 located on the outer periphery of the inner lining 6, and 6 sets of 2-core pairs Twisted metal shielded wires 4 , an isolation layer 2 wrapping the 6 groups of 3-core twisted-pair wires 7 and 6 groups of 2-core twisted-pair metal shielded wires 4 , and an outer sheath 3 outside the isolation layer 2 . The central conductor 5 is twisted with 8 cores 51, and the core 51 is wrapped with an insulating layer 52. The structural combination is 1+7, 7 cores are evenly distributed around the center 1 core, and twisted into a central cable core. The central cable core is wrapped with an isolation layer 53 , and the isolation layer 53 is wrapped with a metal shielding layer 54 . The inner lining layer 6 is wrapped outside the metal shielding layer 54, 6 groups of 2-core...

Embodiment 2

[0088] Similar to Embodiment 1, except that the inner lining layer 6 wraps 8 sets of 3-core twisted-pair conductors 7 and 8 sets of 2-core twisted-pair metal shielded conductors 4 at intervals.

Embodiment 3

[0090] Similar to Embodiment 1, except that the central conductor 5 is stranded with 6 cores 51, the cores 51 are wrapped with an insulating layer 52, the structural combination is 1+5, 5 cores are evenly distributed around the center 1 core, and twisted into a central cable core.

[0091] Description of technical effect of the present invention:

[0092] The existing power feed and signal cables were compared with the flame-retardant and cold-resistant power feed and signal cables produced by the present invention under the same specifications and conditions, and the cable low-temperature pressure test and swing test were compared. The results are shown in Table 1.

[0093] The low-temperature coiling and impact test of the finished cable is based on its operating characteristics, and has been repeatedly verified by the customer after use. It is in accordance with the low-temperature coiling test, low-temperature impact test and bending test of the cold-resistant power feed an...

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Abstract

The invention relates to a flame-retardant and cold-resistant power feeding and signal cable and a preparation method thereof. The flame-retardant and cold-resistant power feeding and signal cable includes a center conductor, a liner layer, two or more sets of three-core twisted pair conductors, two or more sets of two-core twisted pair metal shielding conductors, an isolation layer and an outer sheath layer, wherein the liner layer wraps the center conductor, the three-core twist pair conductors and the two-core twisted pair metal shielding conductors are located at the periphery of the linerlayer, the isolation layer wraps the three-core twisted pair conductors and the two-core twisted pair metal shielding conductors, and the outer sheath layer is located outside the isolation layer. The flame-retardant and cold-resistant power feeding and signal cable of the invention has the advantages of compact structure, stable performance, high torsion resistance, high tensile resistance, highflexibility, high stability, small dielectric loss, strong transmission signal capability, high anti-interference performance, high reliability in transmitting weak analog signals or digital signals,and can be widely used in systems or devices for the detection and control of power generation, metallurgy, petroleum, chemical, textile sectors and other sectors and can be used under harsh field conditions under temperature of -50 to 100 DEG C.

Description

technical field [0001] The invention relates to a cable and a preparation method thereof, in particular to a flame-retardant and cold-resistant power feeding and signal cable and a preparation method thereof. Background technique [0002] Feed and signal cables, whose function is to transmit and provide electrical energy and transmit electrical signals. [0003] With the rapid development of the national economy, my country's aerospace, high-speed railway, intercity rail transit, port, ship and other industries have achieved unprecedented development, and the requirements for automation, intelligence and modularization of related products have been continuously improved, prompting The reliability, sensitivity, and accuracy of equipment control used in the industry have undergone qualitative changes. As a part of equipment control - special feed and signal cables, due to many problems in the production equipment and technical design of cable domestic cable companies, domestic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/04H01B7/17H01B7/18H01B7/28H01B7/295H01B13/00H01B13/14H01B13/02H01B13/22H01B13/24H01B13/26
CPCH01B7/04H01B7/17H01B7/18H01B7/28H01B7/295H01B13/00H01B13/02H01B13/14H01B13/22H01B13/24H01B13/26
Inventor 陈乾坤王晓荣何厚廷唐攀卢朝燕刘杨
Owner HENGYANG HENGFEI CABLE CO LTD
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