用户驻地安装的电信设备的过电压保护指南 |
ITU-T K.98建议书给出了能够帮助保护安装在用户端的通信设备免受由于其电源和通信线路/电缆遭受雷电袭击而造成的损害的信息。该信息表明, 在城市地区,袭击点在距离用户端多于几百米的范围时,保护设备免受直接对电源或通信线路的袭击是可能的。提供的信息考虑不同类型的电源分发系统的冲击。它决定绑定通信电涌保护器(SPD)的长度以及在驻地设备对地的电阻。 也计算了在没有使用初始保护设备的保护隔离级别。建议安装多业务电涌保护器(MSPD)或者等同于保护的第一等级的保护。若必要,需要初级保护来保护MSPD或等同保护设备。对于靠近驻地的业务的冲击,需要工程解决方案。 |
|
Citation: |
https://handle.itu.int/11.1002/1000/12288 |
Series title: |
K series: Protection against interference |
Approval date: |
2014-08-29 |
Provisional name: | K.ovp |
Approval process: | AAP |
Status: |
In force |
Observation: | The published text of this Recommendation includes the modifications introduced by Cor. 1 (03/2015) to ITU-T K.98 (08/2014). |
Maintenance responsibility: |
ITU-T Study Group 5 |
Further details: |
Patent statement(s)
Development history
|
|
|
|
ITU-T Supplement
|
Title
|
Status
|
Summary
|
Table of contents
|
Download
|
K Suppl. 3 (10/2015)
|
ITU-T K.20, K.21, K.45, K.82 – Additional criteria to protect telecommunication cabling during a power cross event
|
In force
|
here
|
here
|
here
|
K Suppl. 8 (11/2017)
|
Resistibility analysis of 5G systems
|
In force
|
here
|
here
|
here
|
K Suppl. 9 (05/2019)
|
5G technology and human exposure to radiofrequency electromagnetic fields
|
In force
|
here
|
here
|
here
|
K Suppl. 10 (11/2017)
|
Analysis of electromagnetic compatibility aspects and definition of requirements for 5G mobile systems
|
In force
|
here
|
here
|
here
|
K Suppl. 13 (12/2021)
|
Radiofrequency electromagnetic field (RF-EMF) exposure levels from mobile and portable devices during different conditions of use
|
In force
|
here
|
here
|
here
|
K Suppl. 14 (09/2019)
|
The impact of RF-EMF exposure limits stricter than the ICNIRP or IEEE guidelines on 4G and 5G mobile network deployment
|
In force
|
here
|
here
|
here
|
K Suppl. 16 (10/2022)
|
Electromagnetic field compliance assessments for 5G wireless networks
|
In force
|
here
|
here
|
here
|
K Suppl. 19 (09/2019)
|
Electromagnetic field (EMF) strength inside underground railway trains
|
In force
|
here
|
here
|
here
|
K Suppl. 29 (07/2022)
|
Electromagnetic field strength inside and outside of electric vehicles using wireless power transfer technology
|
In force
|
here
|
here
|
here
|
Title |
Approved on |
Download |
Mitigation measures for telecommunication installations – Chapter 10
|
2006
|
here
|
Mitigation measures for telecommunication installations
|
2004
|
here
|
Earthing and bonding
|
2003
|
here
|
Guide to the use of ITU-T Publications produced by Study Group 5 aimed at achieving Electromagnetic Compatibility and Safety
|
2002
|
here
|
Earthing of telecommunication installations
|
1976
|
here
|
|