Multi-functional ground concrete rod

A cement rod, multi-functional technology, applied in the direction of connection contact material, building type, building, etc., can solve the problems of cumbersome manufacturing process, can not reduce grounding resistance grounding device corrosion, grounding wire theft and other problems, to avoid chemical corrosion and The effect of electrochemical corrosion, reduction of daily inspection and maintenance workload, and reduction of installation time

Inactive Publication Date: 2012-07-11
福州赤那思电力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the grounding resistance of overhead transmission line poles and towers exceeds the standard. Due to the shallow buried depth of the grounding body, the grounding resistance is large. There are many screw connection points in the grounding device, and its contact resistance is large. Pole-mounted vacuum circuit breakers and other equipment are equipped with copper grounding. Therefore, if theft occurs and damages the power grounding down-conductor, the impact and equipment damage will become greater and greater, which will greatly affect the safe and stable operation of the line.
At the same time, the corrosion of the grounding down conductor and the grounding body is a common problem in the grounding device of the transmission line tower, which will cause the grounding resistance to rise, the cross section cannot meet the thermal stability of the short-circuit current, and some grounding wires are corroded and broken, causing the pole to lose grounding The phenomenon
For example, the utility model disclosed in Chinese Patent Application No. 200620092684.3 discloses a cement electric pole. A water-blocking cover is added to prevent formation water from pouring into the cavity of the utility pole, thereby preventing frost damage at the bottom of the utility pole, prolonging the service life of the utility pole, and preventing collapse due to freezing and thawing. It cannot reduce the grounding resistance, delay the corrosion of the grounding device, and curb the occurrence of theft and damage accidents of the electric grounding device; in addi

Method used

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Examples

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Embodiment Construction

[0024] Such as Figure 1-5 As shown, it is a multi-functional grounding cement rod, including a cement rod body 1, a special grounding connection line 2 arranged inside the rod body, a metal waterproof grounding cover 3 at the bottom of the rod, and a special grounding ring 4. The rod body 1 is poured with concrete and internal reinforcement layers. Twelve built-in grounding special bolt holes 11 are pre-embedded in the side wall of the upper end of the rod body 1, and the built-in special grounding bolt holes 11 are divided into upper, middle and lower layers respectively along the upper, middle and lower parts of the rod body 1. The radial section is evenly arranged, and the four bolt holes of each layer are respectively connected to the four ends of a cross steel frame 12, and the outer wall of the lower end of the pole bottom 1 is also provided with a pole bottom metal waterproof grounding cover 3, the pole bottom The bottom of the metal waterproof grounding cover 3 is pre...

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Abstract

The invention discloses a multi-functional ground concrete rod. The multi-functional ground concrete rod comprises a concrete rod body and a connection wire special for grounding, which is arranged in the rod body; the rod body is formed by pouring concrete and a reinforcement layer in the rod body; the multi-functional ground concrete rod is characterized in that: at least one built-in bolt hole special for grounding is pre-embedded in the side wall of the rod body; the bolt holes special for grounding are exposed out of the rod body and is flush with the outer wall of the rod body; a rod bottom metal waterproof grounding cover is sleeved on the outer wall of the lower end of the rod body; a built-in bolt hole for a grounding electrode is pre-embedded in the bottom of the rod bottom metal waterproof grounding cover; and the connection wire special for grounding is connected in series with the built-in bolt holes special for grounding in the side of the rod body respectively, and then is connected to the built-in bolt hole of the rod bottom metal waterproof grounding cover. By the multi-functional ground concrete rod, the ground resistance of an overhead line electric pole can be reduced obviously, the corrosion of a grounding device is inhibited, the installing and using requirements of the line outage protective grounding wire can be met, and the theft and damage accidents of an electric grounding device can be avoided.

Description

technical field [0001] The invention relates to a multi-power transmission equipment, in particular to a multifunctional grounding cement pole. Background technique [0002] As we all know, the important significance of the grounding device of overhead transmission line pole tower is overvoltage protection. It must have reliable grounding to accelerate the spread of grounding current, reduce the rise of ground potential, and protect line insulation. In "Electrical Installation Engineering Grounding Device Construction And Acceptance Specifications" GB50169-92 "Electrical Installation Engineering Grounding Installation Construction and Acceptance Specifications", "Industrial and Civil Electrical Installation Grounding Design Specifications" (GBJ65-83) have relevant requirements. In recent years, the grounding resistance of overhead transmission line poles and towers exceeds the standard. Due to the shallow buried depth of the grounding body, the grounding resistance is large....

Claims

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Application Information

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IPC IPC(8): E04H12/12H01R4/66
Inventor 黄昱何莉敏李文辉
Owner 福州赤那思电力科技有限公司
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