微型基站的雷电保护和接地 |
ITU-T K.120建议书为小型基站的雷电保护和接地提供了导则。小型基站是一种新型无线电基站,在诸多方面均与分配基站(DBS)不同。安装环境的变化是影响小型基站雷电保护的关键因素。小型基站射频(RF)功率低且尺寸小,适用于覆盖热点和/或盲区,以提升通信质量。小型基站通常安装在住宅区或人口密集的城区(非常规电信站点),例如屋顶(室内)、外墙、广告板、屋顶、街灯、低压电线杆等安装、走线和接地困难的地点。与之相对,宏基站内的分配基站,RF高且尺寸大,适用于广域覆盖。通常DBS安装于常规的电信环境,其安装、走线和接地相对容易。尽管ITU-T K.97建议书涵盖了部分安装方案,但ITU-T K系列建议书并未全面规范小型基站的雷电保护。此建议书旨在为小型基站防雷电电涌,特别是针对那些处于暴露环境(对于雷电)和非常规电信站点的小型基站。小型基站的保护是通过电涌保护设备和/或组件或接口的隔离。对于接地不可用或困难的基站,只要防电击安全措施充分,则可不接地(浮接)。 本建议书还展示了保护模块和光缆的连接配置。 |
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Ed. |
ITU-T Recommendation |
Status |
Summary |
Table of Contents |
Download |
1
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K.120 (12/2016)
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In force
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here
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here
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here
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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K Suppl. 3 (10/2015)
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ITU-T K.20, K.21, K.45, K.82 – Additional criteria to protect telecommunication cabling during a power cross event
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In force
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here
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here
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here
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K Suppl. 8 (11/2017)
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Resistibility analysis of 5G systems
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In force
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here
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here
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here
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K Suppl. 9 (05/2019)
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5G technology and human exposure to radiofrequency electromagnetic fields
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In force
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here
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here
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here
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K Suppl. 10 (11/2017)
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Analysis of electromagnetic compatibility aspects and definition of requirements for 5G mobile systems
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In force
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here
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here
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here
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K Suppl. 13 (12/2021)
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Radiofrequency electromagnetic field (RF-EMF) exposure levels from mobile and portable devices during different conditions of use
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In force
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here
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here
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here
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K Suppl. 14 (09/2019)
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The impact of RF-EMF exposure limits stricter than the ICNIRP or IEEE guidelines on 4G and 5G mobile network deployment
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In force
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here
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here
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here
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K Suppl. 16 (10/2022)
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Electromagnetic field compliance assessments for 5G wireless networks
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In force
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here
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here
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here
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K Suppl. 19 (09/2019)
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Electromagnetic field (EMF) strength inside underground railway trains
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In force
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here
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here
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here
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K Suppl. 29 (07/2022)
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Electromagnetic field strength inside and outside of electric vehicles using wireless power transfer technology
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In force
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here
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here
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here
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Title |
Approved on |
Download |
Mitigation measures for telecommunication installations – Chapter 10
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2006
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here
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Mitigation measures for telecommunication installations
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2004
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here
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Earthing and bonding
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2003
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here
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Guide to the use of ITU-T Publications produced by Study Group 5 aimed at achieving Electromagnetic Compatibility and Safety
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2002
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here
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The protection of telecommunication lines and equipment against lightning discharges – Chapters 9 and 10
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1995
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here
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The protection of telecommunication lines and equipment against lightning discharges – Chapters 6, 7 and 8
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1978
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here
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Earthing of telecommunication installations
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1976
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here
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