Power transmission line tower footing external application grounding device and construction method thereof

A technology for power transmission lines and grounding devices, applied in circuits, line/collector parts, connections, etc., can solve problems such as uneven distribution of current, and achieve the effects of flexible operation, reliable connection and simple operation.

Pending Publication Date: 2020-03-27
SHENZHEN POWER SUPPLY BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When an artificial grounding body is added to reduce the resistance of the transmission tower, when the lightning current flows through the steel bar and the grounding device, it will be unevenly dispersed due to different factors

Method used

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  • Power transmission line tower footing external application grounding device and construction method thereof
  • Power transmission line tower footing external application grounding device and construction method thereof
  • Power transmission line tower footing external application grounding device and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as Figure 1-4 As shown, the externally applied grounding device of the tower foundation of the transmission line according to the present invention includes the slide rail 2 spliced ​​together. The inside of the rail 2 is provided with a card slot 10, and the bottom of the card slot 10 is provided with an arc-shaped slot 9. The card slot 10 communicates with the arc-shaped slot 9 and is in the shape of a "T" as a whole. The card slot 10 and the arc-shaped slot 9 The inner surface is smooth and surrounds the center of the ring at 360 degrees. The inside of the slot 10 is equipped with a hook device. The hook device includes a bolt 13, and the two sides of the bolt 13 are equipped with rollers 11. The size of the slot 10 is the same as the special The size of the roller 11 is matched, so that the roller 11 can freely roll 360 degrees in the slide rail 2. The middle part of the bolt 13 is connected to the hook 3. The shape of the hook 3 is like a "fishhook". Penetra...

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PUM

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Abstract

The invention relates to the technical field of power system safety protection, and specifically relates to a power transmission line tower footing external application grounding device, and a construction method thereof. The power transmission line tower footing external application grounding device comprises sliding rails which are spliced together, wherein clamping grooves are formed in the sliding rails; arc-shaped grooves are formed in the lower portions of the clamping grooves; hanging devices are arranged in the clamping grooves; and each hanging device comprises a bolt, idler wheels arranged on the two sides of the bolt in a sleeving mode and a middle hanging hook of the bolt. The power transmission line tower footing external application grounding device has the advantages of reliable connection, strong universality, flexible operation and the like. During mounting or dismounting, the operation is simple, and special loading and unloading equipment is not needed, and the sealing of each connecting piece can be fully realized, and the use of the graphite blanket plays a better anti-corrosion effect.

Description

technical field [0001] The invention relates to the technical field of power system safety protection, in particular to an externally applied grounding device and a construction method for a tower base of a power transmission line. Background technique [0002] As the main component of the transmission system, transmission line towers have good grounding performance, which is an important guarantee to ensure the smooth discharge of lightning current and avoid high potential differences that endanger the safety of people and power equipment. Most of the pile foundations of power transmission line towers use steel bars as the skeleton and are poured with concrete. Under the current pile foundation pouring process, the inner core steel bars are mostly wrapped in concrete, and the resistivity of concrete can generally reach several thousand ohms. The resistivity of concrete can reach megohms, which makes it extremely difficult for the inner core steel bars of the tower foundatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/64H01R43/00
CPCH01R4/64H01R43/00
Inventor 向真吕启深陈潇戴昊
Owner SHENZHEN POWER SUPPLY BUREAU
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