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Single-pole and double-cable OPGW redundant cable installation fitting and method for substation

A substation, single-pole technology, applied in the direction of cable suspension, cable space arrangement/configuration, overhead line/cable equipment, etc., can solve problems such as insufficient space in compact substations, prevent discharge strand breaks, and solve insufficient space. , Reliable insulation effect

Active Publication Date: 2018-02-16
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a complete set of fittings and installation method for the installation of single-rod double-cable OPGW downconductor cables and remaining cables in intelligent substations, which solves the problem of insufficient space in compact substations. In addition, the installation of pressure limiting devices and three The point grounding technology ensures the reliable grounding of OPGW optical cables, improving the safety and reliability of single-rod and double-cable leads

Method used

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  • Single-pole and double-cable OPGW redundant cable installation fitting and method for substation
  • Single-pole and double-cable OPGW redundant cable installation fitting and method for substation
  • Single-pole and double-cable OPGW redundant cable installation fitting and method for substation

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Embodiment Construction

[0038] Such as Figure 1-2 As shown, a substation single-pole double-cable OPGW remaining cable installation fittings, a pair of OPGW pressure limiting devices 2 are added 100mm above the first grounding point of the gantry pole 1, and the installation orientation of each OPGW pressure limiting device 2 needs to be in accordance with the OPGW optical cable. Substation direction design. The voltage limiting device 2 adopts the patent "A OPGW Terminal Voltage Limiting Device of Gaoya Substation" with the application number "201610481924". The voltage limiting device includes a main body on which an insulating support body and an insulating support body are provided. The device can provide safety protection for the OPGW composite cable of the gantry structure, avoiding the strand breakage of the OPGW optical cable caused by the induced electricity caused by lightning strikes. Hidden danger of broken strands of OPGW composite cables induced by electro-electric corrosion. At the ...

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Abstract

The invention provides a single-pole and double-cable OPGW redundant cable installation fitting and method for a substation. The single-pole and double-cable OPGW redundant cable installation fittingmainly comprises an installation fitting, wherein the installation fitting comprises paired voltage-limiting devices, paired cable leading devices and paired redundant cable drums; and the paired voltage-limiting devices, the paired cable leading devices and the paired redundant cable drums form two sets of OPGW redundant cable inventory fittings. According to the single-pole and double-cable OPGWredundant cable installation fitting and method for the substation, through the arrangement of the two sets of OPGW redundant cable inventory fittings, strands breaking during leading-down of the OPGW can be ensured and the problem that the space of a compact substation is insufficient can be solved.

Description

technical field [0001] The invention relates to the field of OPGW cable installation, in particular to a substation single-rod double-cable OPGW residual cable installation fitting and an installation method. Background technique [0002] At present, there is no single-rod and double-cable down-conduction channel design and special fittings for single-rod and double-cable down-conduction in the current domestic power grid design, resulting in potential safety hazards in the quality of on-site construction and installation. At present, some compact substations built by the power sector have many high-voltage cables entering and exiting, and the phase wires are relatively independent. Once entering the substation, they are fixed on the horizontal frame of the portal frame, and the phase wires are separated by spacers. The door rod is led up and down, and the ADSS optical cable is welded to enter the communication room of the substation. Generally, a 500kV substation correspon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/20H02G7/05H02G1/04
CPCH02G1/04H02G7/05H02G7/20
Inventor 魏素芬张悦饶思传余涛张晓华罗军刘汉枝祝丹李芳亚彭瑾鲁向东孙思友赵沁汤谦平乐卫东
Owner STATE GRID CORP OF CHINA
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