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Processing method of cracking cable

A processing method and cable technology, which is applied in the direction of connecting/terminating cable equipment, overhead line/cable equipment, etc., can solve problems such as endangering the safe operation of power grid lines, cracking, etc.

Inactive Publication Date: 2017-02-22
SICHUAN DAZHOU IRON & STEEL GROUP
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

For "line-shaped" docking, in order to reduce the bearing tension of the cable to the overhead line, it is necessary to strip the outer sheath of the cable and the main insulation of the semi-conductor to connect the cable with the overhead line. Exposure to the sun and exposure to ultraviolet rays for a long time will gradually weather the main insulation layer of the cable and cause cracks in many places, which will seriously endanger the safe operation of the power grid line in the season of frequent thunderstorms in spring and summer

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  • Processing method of cracking cable

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Embodiment Construction

[0025] The core of the invention is to provide a treatment method for cracked cables to avoid cable cracks.

[0026] In order to enable those skilled in the art to better understand the technical solutions provided by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 with figure 2 As shown, a method for processing a cracked cable provided in an embodiment of the present invention includes steps:

[0028] Step 001: Cut off the cracked conductor of the three-core cable 1; what needs to be explained here is that those skilled in the art should be able to understand that before performing step 001, construction preparation work should also be included: for example, the inspection of safety equipment on the iron tower, the The original cracked cables at the iron tower were removed and placed on the ground. After completing step 001, it should al...

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Abstract

The invention discloses a method for processing a cracked cable. After removing a cracking wire of a three-core cable and the same size of a single core cable is removed from a outer sheath and a outer semiconductor layer, then heat shrinkable treatment carried with a high pressure insulation shrink tube; each cable core of the three-core cable of the cutting cracked wire is docked with a single-core cable which is processed by step two through an intermediate cable joint; the single-core cable which have finished the docking is connected to the corresponding overhead lines. By docking the original cable with the single-core cable, the single-core cable are led to the overhead line. Since the single core cable shrinks the high pressure heat shrinkable tube, the main insulation damage caused by the bad environment is avoided, so a repair of the cracked cable is completed, and a re-cracking of the cable is avoided.

Description

technical field [0001] The invention relates to the technical field of protection of distribution network lines, in particular to a method for treating cracked cables. Background technique [0002] In the current distribution network lines, the terminal head of the three-core power cable of the power supply line and the overhead line of the iron tower are generally connected in a "line" shape, such as 6kV and 10kV distribution network lines. However, in the actual maintenance process, it was found that the main insulation layer between the cable conductors of the butt joint section had cracks in many places. For "line-shaped" docking, in order to reduce the bearing tension of the cable to the overhead line, it is necessary to strip the outer sheath of the cable and the main insulation of the semi-conductor to connect the cable with the overhead line. Exposure to the sun and exposure to ultraviolet light for a long time gradually weathered the main insulation layer of the ca...

Claims

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Application Information

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IPC IPC(8): H02G1/02H02G1/14
CPCH02G1/02H02G1/14
Inventor 李元廷王长富王必强李鹏张琦
Owner SICHUAN DAZHOU IRON & STEEL GROUP
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