| Protection of customer premises from overvoltages |
Recommendation ITU-T K.66:
• provides recommendations for bonding and earthing of telecommunication equipment in residential and commercial customer premises;
• refers to Recommendation ITU-T K.21 (2008) for equipment resistibility requirements;
• recommends earthing and bonding requirements to coordinate with the resistibility requirements of Recommendation ITU-T K.21 (2008) and the safety requirements of IEC 60950-1 and IEC 62368;
• recommends the installation practices for bonding of all services and the installation of surge protective devices (SPDs);
• illustrates problems associated with earthing and bonding and provides solutions for these earthing and bonding problems. These include:
1) methods to improve the earthing and bonding;
2) methods of providing additional protection external to the equipment;
3) special resistibility and safety requirements;
• recommends responsibilities for protection at customer premises;
• refers to IEC 62305-3 for protection against direct lightning.
This revision of ITU-T K.66 includes an update of the references and a revision of clause 6.3 to include more information on preventing equipment damage. Appendix IV, containing information on special resistibility requirements has been deleted; the reader is directed to Recommendation ITU-T K.44 (2008). |
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| Citation: |
https://handle.itu.int/11.1002/1000/11345 |
| Series title: |
K series: Protection against interference |
| Approval date: |
2011-06-13 |
| Provisional name: | K.pcp |
| Approval process: | AAP |
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Status: |
Superseded |
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Maintenance responsibility: |
ITU-T Study Group 5 |
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Further details: |
Patent statement(s)
Development history
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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
|
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
|
here
|
here
|
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
|
here
|
here
|
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
|
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
|
In force
|
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
|
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
|
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
|
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
|
here
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here
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here
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K Suppl. 32 (06/2023)
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Case studies of radio frequency- electromagnetic field (RF-EMF) assessment
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In force
|
here
|
here
|
here
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| Title |
Approved on |
Download |
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Mitigation measures for telecommunication installations – Chapter 10
|
2006
|
here
|
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Mitigation measures for telecommunication installations
|
2004
|
here
|
|
Earthing and bonding
|
2003
|
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
|
2002
|
here
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Earthing of telecommunication installations
|
1976
|
here
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