1. Standards for the protection of radio installations
ITU Workshop on
“Tackling climate change and Specific Absorption Rate (SAR) Measurement”
(Cotonou, Benin, 19 July 2012)
Standards for the protection of radio installations
Ahmed ZEDDAM,
ITU-T SG5 Chair
France Telecom Orange
Cotonou, Benin, 19 July 2012

2. Overview of ITU-T/SG5 Publications Series K Recommendations Handbooks
Outline
Overview of ITU-T/SG5 Publications
Classification of SG5 publications
Series K Recommendations
Handbooks
Lightning Handbook
Earthing and Bonding Handbook
Standards for the protection of radio installations
Cotonou, Benin, 19 July 2012

3. ITU-T/SG5: Reference document
“Guide to the use of ITU-T Publications produced by Study Group 5 aimed at achieving Electromagnetic Compatibility and Safety”
(Supplement to the K-series Recommendations)
Guide
List of the Titles of K-series Recommendations
Terminology
Cotonou, Benin, 19 July 2012

4. Relationships between the ITU-T documents
ITU-R
ITU-T
ITU-D
SG 5
Recommendations
Other publications
Handbooks
Directives
Cotonou, Benin, 19 July 2012

5. Classification of SG 5 Publications
Considered equipment and installations
Equipment and installations located in telecommunications centres, at radio installations or at outdoor locations
Telecommunication lines at outdoor locations
Equipment located in Customer Premises
Handbooks & Guides:
Lightning Handbook
Earthing & Bonding Handbook
Measuring Handbook
Mitigation Handbook
Directives
Resistibility Guide
Cotonou, Benin, 19 July 2012

6. Classification of SG 5 Publications
 Series K Recommendations:
“Protection against interference”
List: from K.1 (11/1988) to K.94 (05/2012)
Some of them deleted after its content became technically out of date
Access:
K.6 to K. 26 in Blue Book (1989)
Individual issues: paper or electronic CD versions
Free access to List of Recommendations:
Cotonou, Benin, 19 July 2012

7. Lightning Handbook: “The protection of telecommunication lines and equipment against lightning discharges”
Composed of three volumes
The Chapters 6 to 8
protective practices for specific parts of telecommunication networks (overhead lines, underground cables, switching and subscriber equipment, radio installations);
protective practice for personnel;
estimation of frequency of breakdowns for various types of installations (telecommunication towers, buried cables, overhead lines).
Cotonou, Benin, 19 July 2012

8. Earthing and Bonding Handbook
Earthing and Bonding of Telecommunication Installation
Main purpose of earthing in telecom installation;
Requirements for service and protection earthing;
Earthing / bonding configurations, (star, mesh. mixed star-mesh);
Characteristics / configurations of earth electrodes (trench, earth spikes, plates)
Measuring the soil resistivity and earth electrode resistance;
Maintenance of earthing installations.
Cotonou, Benin, 19 July 2012

9. Recommendation ITU-T K
Recommendation ITU-T K.56 : Protection of radio base stations against lightning discharges
Presents the techniques applied to a telecom. radio base station in order to protect it against lightning discharges
The need of protection is obtained from the methodology contained in IEC , which is used to determine the relevant lightning protection level (LPL) for the installation
The protection techniques for the external area cover the lightning protection system (LPS), bonding procedures, earthing and the installation of surge protective devices (SPDs) at the power meter station
The protection techniques for the equipment building cover the feeder and lighting cables, the electric power conductors, the telecommunication cabling and the earthing/bonding procedures applied to cable trays and equipment frames
Cotonou, Benin, 19 July 2012

10. Other useful Standards
Recommendation ITU-T K.27 “Bonding configurations and earthing inside a telecommunication building”
Recommendation ITU-T K.35 “Bonding configurations and earthing at remote electronic sites”
IEC “Protection against lightning – Part 1: General principles.
IEC “Protection against lightning – Part 2: Risk management”
IEC “Protection against lightning – Part 3: Physical damage to structures and life hazard”
IEC “Protection against lightning – Part 4: Electrical and electronic systems within structures”
Cotonou, Benin, 19 July 2012

11. Thank you
Cotonou, Benin, 19 July 2012