PD IEC/TR 62630:2010

PD IEC/TR 62630:2010

Guidance for evaluating exposure from multiple electromagnetic sources

Status : Current   Published : September 2010

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PD IEC/TR 62630:2010 Guidance for evaluating exposure from multiple electromagnetic sources

PD IEC/TR 62630 is a Technical Report which describes exposure evaluation concepts and techniques for the overall exposure level in spatial regions and occupants caused by the simultaneous exposure to multiple narrowband electromagnetic (EM) sources. Throughout PD IEC/TR 62630, it is assumed that the exposure evaluation occurs under static conditions, i.e., the source position and transmit-mode characteristics (e.g. emitted power, modulation scheme, etc.) of the device(s) under test do not vary significantly over the time required to carry out the evaluation using the chosen evaluation technique (e.g., field measurements).

The vast majority of wireless communication systems worldwide employ signalling schemes featuring narrowband waveforms occupying a frequency band not broader than 10 % of its central frequency. For information, Annex A presents the operating system bands and channel bandwidths of several common wireless services.

Wide-band communication systems, e.g., ultra-wideband (UWB) systems employing impulsive waveforms with fractional bandwidth well in excess of 10 %, are relatively new to the marketplace, have experienced limited deployment so far, and are not typically regarded as significant contributors to EM exposure levels due to low transmit power levels.

Contents of PD IEC/TR 62630:

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions
3.2 Physical quantities
3.3 Constants
3.4 Abbreviations
3.5 Vector notations
4 Overview
5 Classification of devices and EM sources
5.1 General aspects
5.2 Device classification based on the intended use: user-centric versus nodecentric
5.3 EM source classification: single-channel versus band-wide transmitters
6 Combined exposure from multiple narrowband EM sources
6.1 Guidance on the selection of the exposure summation approach
6.2 Correlation between signals emitted by different EM sources
6.3 Relevant exposure metrics
6.4 Combined exposure from uncorrelated EM sources
6.5 Combined exposure evaluation of correlated EM sources
6.5.1 Accurate estimate of the true field vector sum
6.5.2 Conservative combined exposure evaluation using scalar sensors
Annex A (informative) Frequency allocations for some common wireless services
Annex B (informative) Supporting analytical details
Annex C (informative) Examples of combined exposure evaluations
Bibliography

 




Standard NumberPD IEC/TR 62630:2010
TitleGuidance for evaluating exposure from multiple electromagnetic sources
StatusCurrent
Publication Date30 September 2010
Normative References(Required to achieve compliance to this standard)IEC 62209-1:2005
Informative References(Provided for Information)IEC 62232, IEC 62209-2:2010, IEEE Std C95.3:2002
International RelationshipsIEC TR 62630:2010
DescriptorsMobile radio systems, Physiological effects (human body), Radiofrequencies, Radio-wave hazards, Communication equipment, Telephones, Absorption, Electromagnetic fields, Telephone equipment, Electromagnetic radiation, Transmitters, Cordless telephones, Measurement, Radiocommunication, Mobile communication systems, Computer networks, Multiple, Computers, Antennas, Human body, Mathematical calculations
ICS17.220.20
33.050.10
Title in GermanLeitfaden zur Ermittlung der Exposition gegen elektromagnetische Felder von mehreren Quellen
CommitteeGEL/106
ISBN978 0 580 67860 8
PublisherBSI
FormatA4
DeliveryYes
Pages50
File Size2.544 MB
Price£240.00


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