视频监控系统的雷电保护和接地 |
ITU-T K.142建议书提供了一套与视频监控系统的防雷、接地和连接相关的实用程序(VSS)。ITU-T K.142建议书的主要目标是减少雷击对VSS造成损害的风险,这将提高VSS本身及其相关设备的安全性和可靠性。建议ITU-T K.142还提供了保护VSS免受雷电冲击所需的保护模块的配置和额定值。通常,VSS可用于远程捕获多媒体,例如音频、视频、图像和报警信号,并以用户友好的方式将其呈现给终端用户,基于有保证质量、安全性和可靠性的受管宽带网络。根据传输信号的类型,VSS可分为三种:模拟;混合数字模拟;和全数字(也称为基于互联网协议)。因为基于IP的VSS在防雷方面更为复杂,所以它们不在ITU-T K.142建议书的范围之内。见ITU-T K.45建议书。附录A给出了VSS分类,而附录一给出了VSS前端设备接地实用程序的概述。许多监控产品都采用了相关的技术要求,有效地提高了相关产品的防雷能力和使用率,保证了网络的正常运行。 |
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Ed. |
ITU-T Recommendation |
Status |
Summary |
Table of Contents |
Download |
1
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K.142 (11/2019)
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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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Earthing of telecommunication installations
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1976
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here
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