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Novel cable sheath insulation fault positioning probe and device

A technology for cable sheathing and insulation faults, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of large volume, achieve the effects of reducing device volume, reducing friction, and reducing the incidence of jamming

Pending Publication Date: 2018-07-06
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a new type of cable sheath insulation fault location probe and location device, which solves the problem that the overall volume of the existing device is too large

Method used

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  • Novel cable sheath insulation fault positioning probe and device
  • Novel cable sheath insulation fault positioning probe and device
  • Novel cable sheath insulation fault positioning probe and device

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Embodiment Construction

[0024] The present invention will be further described below in combination with specific embodiments. Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should not be construed as limitations on this patent; in order to better illustrate the implementation of the present invention, some parts of the accompanying drawings will be omitted, Enlargement or reduction does not represent the size of the actual product; for those skilled in the art, it is understandable that certain known structures and their descriptions in the drawings may be omitted.

[0025] refer to figure 2 and image 3 , the novel cable sheath insulation fault location probe 10 of this preferred embodiment comprises a probe body 11, a wrapping sheet 12 and a movable part 13, the wrapping sheet 12 is rotatably connected to the probe body 11, and the probe body 11 and the wrapping sheet The side of 12 facing the cabl...

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Abstract

The invention provides a novel cable sheath insulation fault positioning probe and device used for positioning of cable sheath insulation faults. The novel cable sheath insulation fault positioning probe comprises a probe body, wrapping pieces and moving parts, the wrapping pieces are rotatably connected with the probe body, one sides, facing a cable, of the probe body and the wrapping pieces arearcs matched with the cable in appearance, and the moving parts arranged on the probe body and the wrapping pieces can be attached to the surface of the cable and roll along the surface of the cable axially. The whole device is designed for wrapping the cable, the device is greatly reduced in volume, radial space in tubes is saved, and jamming occurrence rate is reduced; the probe is suitable fordifferent voltage grades of pipe lines or pipe-jacking pipelines, the probe body and the wrapping pieces are arc-shaped and can be attached to the surface of the cable to contact with sheath insulation failure points of the cable and roll forward with the moving parts along the surface of the cable, and the sheath insulation failure points of the cable in the pipelines are determined.

Description

technical field [0001] The invention relates to the technical field of power transmission and distribution line maintenance, in particular to a novel cable sheath insulation fault location probe and a location device. Background technique [0002] The insulation of the cable sheath is crucial to ensure the normal operation of the cable. Cable sheath insulation failure refers to the damage of the cable sheath. Cable sheath insulation fault location refers to determining the damage point of the cable sheath. The cable sheath insulation fault location is the key to repairing the damaged point of the cable sheath. Generally, the high-voltage pulse-step voltage method is used to apply a high-voltage pulse current to the cable metal sheath. The high-voltage pulse current passes through the damaged point of the cable sheath to the earth. Leakage occurs, and a directional electric field gradient from strong to weak is generated, and then the highest point of the electric field is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1272
Inventor 李迪
Owner GUANGDONG POWER GRID CO LTD
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