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Lightning protection grounding method of shared iron tower

A lightning protection grounding and iron tower technology, which is applied in the direction of connection ground, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems that cannot meet the requirements of 5G communication base stations, cannot protect antennas, and the level of lightning protection grounding cannot meet communication base stations, etc.

Active Publication Date: 2020-06-05
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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AI Technical Summary

Problems solved by technology

[0008] Therefore, the lightning protection and grounding protection of the shared tower is particularly important, and the lightning protection and grounding system of the original power tower cannot meet the requirements of 5G communication base stations
In terms of lightning protection, the communication antenna can be mounted on different parts of the tower top, tower head, tower body, etc. The original lightning protection system cannot protect antennas in all positions
In terms of grounding, the grounding resistance of the original ground network is required to be less than 30 ohms, while the grounding resistance of the communication system is required to be less than 10 ohms. Obviously, the existing lightning protection grounding level cannot meet the requirements of communication base stations

Method used

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  • Lightning protection grounding method of shared iron tower
  • Lightning protection grounding method of shared iron tower
  • Lightning protection grounding method of shared iron tower

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Embodiment 1

[0075] 1. Lightning protection of shared towers:

[0076] The outdoor lightning wire (needle) protects the antenna at an angle of less than 45°, so the communication base stations, feeders, cable racks and other facilities at the tower head and tower body are all within the protection range of the lightning rod. The lightning rod should be specially equipped with a lightning protection down-conductor. If it is confirmed that the electrical connection of the metal components of the iron tower is reliable, it is not necessary to set a special down-conductor, and the tower body can be used as a grounding conductor. The communication base station at the top of the tower is not within the protection range of the lightning protection wire (needle), so the base station fixed pole needs to be specially equipped with a lightning protection grounding down-lead. One side of the clamp is convenient for the installation of feeder grounding. The down-conductor should be welded with 40mm×4mm...

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Abstract

The invention relates to a lightning protection grounding method for a shared iron tower, a lightning protection method is provided according to the carrying position of a 5G communication antenna, and when an antenna is located at the tower top (not within the protection range of a lightning rod), a lightning protection grounding down lead is arranged on an antenna fixing rod; when the antenna islocated at other positions (within the protection range of the lightning rod), the tower body is used as a grounding conductor; and a grounding resistance calculation formula is optimized, meanwhile,the influence of the horizontal grounding body, the vertical grounding body and the radial grounding body is considered, and an earth screen transformation scheme is provided based on an existing grounding system of an electric iron tower, that is to say, an annular grounding device is added on the basis of an original grounding grid. The annular grounding device and the original grounding grid are located on the same horizontal plane, the annular grounding device and the original grounding grid are mutually welded and communicated once every 3-5 m, the annular grounding device comprises a horizontal grounding body, a vertical grounding body and a radial grounding body, and finally the shared iron tower grounding resistor meets the requirements of a power system and a communication systemat the same time.

Description

technical field [0001] The invention relates to a lightning protection and grounding method for a shared iron tower, in particular to a lightning protection and grounding system for a shared tower communication base station. It belongs to the technical field of electric equipment. Background technique [0002] At present, our country is in an era of "post-4G" and the beginning of 5G. Compared with the connection between 4G people and people, the application scenarios of 5G have expanded to the connection between people and things, and between things and things, which has a huge market prospect. With the development of society towards intelligence, Internet + and Internet of Things technologies are advancing by leaps and bounds, and all of these require the support of a huge, full-coverage wireless communication network. Compared with 4G signals, 5G signals have comprehensive improvements in speed, delay and other aspects. However, due to the high frequency and short wavele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/50H01Q1/48H01R4/66H01T19/04H02G13/00
CPCH01Q1/48H01Q1/50H01R4/66H01T19/04H02G13/40
Inventor 刘欣博刘宁张洲
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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