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Method for connecting decoupling shielded cable

A technology for shielding cables and connection methods, applied in conductive connection, connection, cable/conductor manufacturing, etc., to achieve the effect of enhancing anti-interference ability and electromagnetic shielding effect

Active Publication Date: 2007-09-19
广州捷能电力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when the adjacent AC mains system with a high occurrence rate is mixed into the control system, the consequences are very serious

Method used

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  • Method for connecting decoupling shielded cable
  • Method for connecting decoupling shielded cable

Examples

Experimental program
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Effect test

Embodiment Construction

[0010] specific implementation plan

[0011] A decoupling shielded cable of the present invention is shown in Figure 1: wherein the decoupling shielded cable includes an insulated conductor core 1, a decoupling shielding layer 2, an inner insulating layer 3, an outer shielding layer 4, and an outer sheath 5 .

[0012] As shown in Figure 1, this embodiment is a decoupling shielded cable with 7 insulated wire cores 1, and the wire diameter, material, type and insulating material of the insulated wires are not limited; the decoupling shielding layer 2 is composed of The conductive material surrounding the outside of the insulated wire 1 can be continuously wound with copper foil, aluminum foil, or a variety of conventional cable shielding layer structures such as a continuous surrounding conductive braid; the inner insulating layer 3 is used as a decoupling shield The electrical insulation between layer 2 and the outer shielding layer is only used, and its material and processin...

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PUM

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Abstract

An application method for a coupling-releasing shield cable, configures a new coupling-releasing shield cable by adding an encircling insulative conductive coupling-releasing shield layer (2) between an insulative wire cable core (1) and an outer shield layer (4) of a common shield cable, the coupling-releasing shield layer (2) is connected to a control loop common port (COM) so that capacitance coupling of the outer shield layer (4) and the inner insulative wire cable core (1) is cut. And the new coupling-releasing shield layer (2) forms a new larger distribution capacitance together with the insulative wire cable core (1) connected with a control loop and the grounding outer shield layer (4), respectively, a coupling-releasing and filtering work state is showed on the controlled loop, thereby, the distribution capacitance can be converted into a good action of increasing antijamming ability of the loop.

Description

technical field [0001] The technology of the invention belongs to the field of electrical control, and relates to a special shielded cable and a connection method capable of simultaneously effectively suppressing system and loop electromagnetic interference and transmission channel coupling interference. Background technique [0002] In order to ensure that the large-scale control system can still operate in the case of reduced insulation or grounding at one point, the DC power supply of the control system usually adopts the system wiring method of indirect grounding. For anti-interference, control cables often use shielded cables, and because of the large distributed capacitance of general-purpose shielded control cables, the shielding layer is designed according to the direct grounding method. This cable and wiring method is used in the above-mentioned large-scale control system of suspension power supply, and its large distributed capacitance will inevitably provide a cou...

Claims

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Application Information

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IPC IPC(8): H01B11/06H01B13/22H01R9/00
Inventor 孟莉
Owner 广州捷能电力科技有限公司