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Electromagnetic interference prevention mixing cable

An anti-electromagnetic interference, hybrid cable technology, used in power cables, power cables with shielding/conducting layers, cables with double-stranded/quad-stranded, etc., can solve the problem of high cost, power cable use restrictions, etc.

Active Publication Date: 2016-07-20
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of the existing power cables are not designed for their own magnetic shielding, and the shielding layer used by some magnetically shielded power cables is wire mesh, which is expensive and has no effect on the low-frequency magnetic field generated during the actual transmission of electric energy. Magnetic shielding effect, the use of power cables is limited

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0072] exist figure 1 As shown, different numbers of power cables and signal cables are integrated according to actual needs, and the gap between the outer layer and the cables is filled with protective materials.

[0073] exist figure 2 As shown, 11 is a three-phase conductor, and A, B, and C are three-phase core wires respectively; 13 is a high magnetic permeability metal shielding layer. The high-permeability metal shielding layer 13 fully covers the three-phase conductor 11 to prevent the magnetic flux leakage generated during the operation of the power cable from affecting the magnetic shielding effect.

[0074] exist image 3 In (a), the A-phase line is covered with a high-permeability metal shielding layer, and the magnetic flux is only magnetically shunted on the high-permeability metal shielding layer, and the magnetic flux does not decrease; image 3 In (b), since the phasor sum of the three-phase electricity is 0, the generated magnetic flux is offset in the hig...

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Abstract

The invention discloses an electromagnetic interference prevention mixing cable. In the cable, an electric power cable and a communication cable are directly integrated. The cable is formed by the electric power cable possessing an electromagnetic interference shielding function, a signal cable possessing an electromagnetic interference prevention capability and a protective sleeve. The protective sleeve wraps the communication cable and the electric power cable. The number of the signal cable and the electric power cable is not limited and is decided by a usage demand. The electric power cable and the communication cable shield the electromagnetic interference through a magnetic shielding material respectively, are mainly used for tight parallel wiring of strong and light current systems and are used in a condition that the light current system has a high requirement to strong current interference shielding.

Description

technical field [0001] The invention belongs to the field of power cables, in particular to a hybrid cable for preventing electromagnetic interference. Background technique [0002] With the rapid development of the economy, the demand for cables is also increasing, and the cables are different in different working environments. In electrical or electronic systems, cables are mainly used to connect different systems and realize the effective transmission of energy and information between different systems. With the increase of working cables, the electromagnetic environment becomes more and more complex, and the mutual interference between cables becomes very complicated. [0003] In electrification equipment, working cables are mainly divided into power cables and communication cables. Moreover, due to the limited volume of the equipment, the cables usually exist in the form of cable bundles. The role of the power cable in the circuit is mainly to transmit electric energ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/02H01B11/06
CPCH01B9/021
Inventor 唐章宏王群胡涛春周东伟
Owner BEIJING UNIV OF TECH
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