确定高压或中压网络与低压网络的接地系统或中线之间的地电位升高转移的方法 |
当高压或中压AC网络发生接地故障时,接地构造处会发生明显的地电位升高(EPR),并向地面放电;这种情况通常会出现在发生故障的变电站的接地电网中。当接地电网通过金属与地线、中性导体、平衡网络、电缆护套、管轨等长导体相连接时,EPR会传递较远距离,甚至远超出影响区域。ITU-T K.104建议书描述了向客户所在地发生电位转移的机制,并特别介绍了通过低压网络的中性导体和电信电缆护套发生的转移。建议书还描述了用于确定EPR和传递电位量级的计算技术,并提议了一种防止EPR转移的缓解技术。此外,建议书还提出了不同的绝缘技术,以作为可适用于电信设施的缓解技术。 |
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Citation: |
https://handle.itu.int/11.1002/1000/12424 |
Series title: |
K series: Protection against interference |
Approval date: |
2015-03-01 |
Provisional name: | K.hvps1 |
Approval process: | AAP |
Status: |
In force |
Maintenance responsibility: |
ITU-T Study Group 5 |
Further details: |
Patent statement(s)
Development history
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Ed. |
ITU-T Recommendation |
Status |
Summary |
Table of Contents |
Download |
1
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K.104 (03/2015)
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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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