EN 50492:2008
(Main)Basic standard for the in-situ measurement of electromagnetic field strength related to human exposure in the vicinity of base stations
Basic standard for the in-situ measurement of electromagnetic field strength related to human exposure in the vicinity of base stations
This European Standard specifies in the vicinity of base station as defined in 3.2 the measurement methods, the measurement systems and the post processing that shall be used to determine in-situ the electromagnetic field for human exposure assessment in the frequency range 100 kHz to 300 GHz.
Grundnorm für die Messung der elektromagnetischen Feldstärke am Aufstell- und Betriebsort von Basisstationen in Bezug auf die Sicherheit von in ihrer Nähe befindlichen Personen
Diese Grundnorm legt die Messverfahren, die Messsysteme sowie die Nachbearbeitung für Messungen in der Nähe von Basisstationen, wie sie in 3.2 festgelegt sind, fest, um damit die elektromagnetischen Felder am Aufstell- und Betriebsort der Basisstationen im Hinblick auf die Beurteilung der Sicherheit von Personen in elektromagnetischen Feldern im Frequenzbereich 100 kHz bis 300 GHz zu bestimmen.
Norme de base pour la mesure du champ électromagnétique sur site, en relation avec l’exposition du corps humain à proximité des stations de base
La présente Norme Européenne spécifie les méthodes de mesure, les systèmes de mesure et le post-traitement qui doivent être mis en oeuvre pour déterminer sur site, le champ électromagnétique pour l'évaluation de l'exposition du corps humain à proximité des stations de base, telles que définies au 3.2, dans la gamme de fréquences de 100 kHz à 300 GHz.
Osnovni standard za terensko merjenje jakosti elektromagnetnega polja v zvezi z izpostavljenostjo ljudi v okolici baznih postaj
Ta evropski standard določa merilne metode in sisteme ter naknadno obdelavo v okolici baznih postaj, kot je določeno v poglavju 3.2, za terensko merjenje elektromagnetnega polja v zvezi z izpostavljenostjo ljudi v frekvenčnem območju 100 kHz–300 GHz.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2009
Osnovni standard za terensko merjenje jakosti elektromagnetnega polja v zvezi z
izpostavljenostjo ljudi v okolici baznih postaj
Basic standard for the in-situ measurement of electromagnetic field strength related to
human exposure in the vicinity of base stations
Grundnorm für die Messung der elektromagnetischen Feldstärke am Aufstell- und
Betriebsort von Basisstationen in Bezug auf die Sicherheit von in ihrer Nähe befindlichen
Personen
Norme de base pour la mesure du champ électromagnétique sur site, en relation avec
l’exposition du corps humain à proximité des stations de base
Ta slovenski standard je istoveten z: EN 50492:2008
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
33.070.01 Mobilni servisi na splošno Mobile services in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 50492
NORME EUROPÉENNE
November 2008
EUROPÄISCHE NORM
ICS 17.220.20; 33.070.01
English version
Basic standard for the in-situ measurement of electromagnetic field
strength related to human exposure in the vicinity of base stations
Norme de base pour la mesure du champ Grundnorm für die Messung
électromagnétique sur site, en relation der elektromagnetischen Feldstärke
avec l’exposition du corps humain am Aufstell- und Betriebsort
à proximité des stations de base von Basisstationen in Bezug
auf die Sicherheit von in ihrer Nähe
befindlichen Personen
This European Standard was approved by CENELEC on 2008-09-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50492:2008 E
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 106X, Electromagnetic
fields in the human environment.
The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50492 on
2008-09-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2009-09-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-09-01
This European Standard has been prepared under Mandate M/305 given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of EC Directive
RTTED (1999/5/EC).
__________
– 3 – EN 50492:2008
Contents
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Physical quantities, units and constants . 10
4.1 Quantities . 10
4.2 Constants . 10
5 General process . 10
6 Site analysis and case determination . 12
6.1 Introduction . 12
6.2 RF sources to be considered . 12
6.3 Case determination . 12
7 Determination of field quantity to measure in relation to the distance to source antennas . 13
8 Requirements of measurement systems . 13
8.1 General . 13
8.2 Technical requirements of measurement systems . 14
9 Measurement procedures . 16
9.1 General requirements . 16
9.2 Field strength assessment . 16
10 Assessment of the field strength at maximum traffic of a cellular network . 18
11 Uncertainty . 19
11.1 Requirement for expanded uncertainty . 19
11.2 Uncertainty estimation . 19
12 Presentation of results . 22
Annex A (informative) Main services operating RF . 23
Annex B (informative) Sweeping method . 24
B.1 Measurement setup . 24
B.2 Measurement method . 24
B.3 Discussion on advantages and disadvantages of the method . 24
B.4 References . 25
Annex C (informative) Example of broadband equipment use. 26
C.1 General . 26
C.2 Locating the point of maximum exposure . 26
Annex D (informative) Spectrum analyser settings . 28
D.1 Introduction . 28
D.2 Detection algorithms . 28
D.3 Resolution bandwidth and channel power processing . 29
D.4 Integration per service . 31
Annex E (informative) Measuring and evaluating different broadcast signals in respect to EMF . 32
E.1 FM radio . 32
E.2 DAB (Digital Audio Broadcasting; Digitalradio) . 32
E.3 Long wave, medium wave and short wave service . 32
E.4 DRM (Digital Radio Mondial) . 33
E.5 Analog (PAL and SECAM modulation) . 33
E.6 DVB-T . 34
Annex F (informative) WCDMA measurement and calibration using a code domain analyser . 35
F.1 General . 35
F.2 Requirements for the code domain analyser . 35
F.3 Antenna factor . 36
F.4 Calibration . 37
Annex G (informative) Influence of human body on probe measurements of the electrical field
strength . 40
G.1 Simulations of the influence of human body on probe measurements based on the method of
moments (surface equivalence principle). 40
G.2 Comparison with measurements . 41
G.3 Conclusions . 42
Annex H (informative) Spatial averaging . 43
H.1 Introduction . 43
H.2 Small-scale fading variations . 44
H.3 Error on the estimation of local average power density . 44
H.4 Characterization of environment statistical properties . 45
H.5 Characterisation of different averaging schemes . 45
H.6 Example of uncertainty assessment . 49
H.7 References . 49
Annex I (informative) Maximum traffic estimation of cellular network contribution . 50
I.1 General . 50
I.2 GSM and estimation of the exposure at maximum traffic . 50
I.3 UMTS and estimation of the exposure at maximum traffic . 51
I.4 Influence of traffic in real operating network . 51
I.5 Maximum traffic estimation for TETRA and TETRAPOL PMR cellular network contribution . 52
Annex J (informative) WiFi measurements. 55
J.1 General . 55
J.2 Integration time for reproducible measurements . 55
J.3 Channel occupation . 56
J.4 Some considerations . 56
J.5 Scalability by channel occupation . 57
J.6 Influence of the applicati
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.