EN 50554:2010

SLOVENSKI STANDARD
01-januar-2011
Osnovni standard za terensko ocenjevanje mesta oddajanja v zvezi z
izpostavljenostjo ljudi elektromagnetnim sevanjem
Basic standard for the in-situ assessment of a broadcast site related to general public
exposure to radio frequency electromagnetic fields
Grundnorm für die Bewertung eines Rundfunkstandorts vor Ort in Bezug auf die
Exposition der Allgemeinbevölkerung gegenüber hochfrequenten elektromagnetischen
Feldern
Norme de base pour l'évaluation in-situ de l'exposition du public aux champs
électromagnétiques de radiofréquence d'un site de radiodiffusion
Ta slovenski standard je istoveten z: EN 50554:2010
ICS:
17.240 Merjenje sevanja Radiation measurements
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50554
NORME EUROPÉENNE
November 2010
EUROPÄISCHE NORM
ICS 17.240
English version
Basic standard for the in-situ assessment of a broadcast site related to
general public exposure to radio frequency electromagnetic fields

Norme de base pour l'évaluation in-situ de Grundnorm für die Bewertung eines
l'exposition du public aux champs Rundfunkstandorts vor Ort in Bezug auf
électromagnétiques de radiofréquence die Exposition der Allgemeinbevölkerung
d'un site de radiodiffusion gegenüber hochfrequenten
elektromagnetischen Feldern
This European Standard was approved by CENELEC on 2010-11-01. 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, Croatia, 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

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50554:2010 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 Unique Acceptance Procedure and was approved by
CENELEC as EN 50554 on 2010-11-01.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
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) 2011-11-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-11-01
__________
– 3 – EN 50554:2010
Contents
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Assessment fundamentals . 6
4.1 Level of protection . 6
4.2 Worker/public exposure . 6
4.3 Stakeholders . 7
4.4 Actions required . 7
4.5 Simultaneous exposure to fields at different frequencies . 7
4.6 Area to perform a detailed assessment . 8
5 Assessment methodology in the relevant domain when the exposure situation
changes . 8
5.1 Introduction . 8
5.2 Determination of the Threshold Distance (TD) . 8
5.3 Area definition . 8
5.4 Assessment . 9
5.5 How to take inaccuracy into account .10
5.6 Report of the assessment.11
Annex A (informative) Example of a simple method for estimation of the safety distance
from a broadcast site .12
Annex B (informative) Assessment procedure in Germany and in Italy .14
B.1 Assessment procedure in Germany .14
B.2 Assessment procedure in Italy .15
Bibliography .17

Figures
Figure 1 ― Area definition . 9
Figure A.1 ― Pattern of antennas . 12
Figure A.2 ― Safety distances for two antennas on the left side and one antenna on the right side . 13

1 Scope
This basic standard specifies the method for assessing overall exposure from all fixed radio frequency
sources at a broadcast site. This assessment may be applied at any time but must be carried out
when the exposure situation changes in or around this site.
It plays an essential role in the coordination of different stakeholders, with respect to ensuring EMF
exposure compliance in and around a broadcast site especially for equipment installed within the site.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 50383, Basic standard for the calculation and measurement of electromagnetic field strength and
SAR related to human exposure from radio base stations and fixed terminal stations for wireless
telecommunication systems (110 MHz – 40 GHz)
EN 50413, Basic standard on measurement and calculation procedures for human exposure to
electric, magnetic and electromagnetic fields (0 Hz – 300 GHz)
EN 50492, Basic standard for the in-situ measurement of electromagnetic field strength related to
human exposure in the vicinity of base stations
EN 50496, Determination of workers' exposure to electromagnetic fields and assessment of risk at a
broadcast site
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
basic restriction
restriction on exposure to time-varying electric, magnetic, and electromagnetic fields that is based
directly on established health effects
NOTE In the frequency range from 30 MHz to 10 GHz, the physical quantity used is the specific
absorption rate. Between 10 GHz and 40 GHz, the physical quantity is the power density.
3.2
broadcasting service
radiocommunication services in which the transmissions are intended for direct reception by the
general public
NOTE This service may include sound transmissions, television transmissions or other types of
transmission.
3.3
broadcast site
site where one or more broadcast transmitters are operated
3.4
controlled area
area in which the operator may decide who is permitted to enter or remain or an area which, due to
actual circumstances, the public is prohibited from entering

– 5 – EN 50554:2010
3.5
employer
natural or legal person who has an employment relationship with the worker and has responsibility for
the undertaking and/or establishment
[Directive 89/391/EEC [4]]
3.6
Exposure Ratio
ER
for an individual source, between 100 kHz to 10 GHz:
2 2
E H
ER MAX , ;
EL HL
between 10 GHz and 40 GHz:
S
ER
SL
where
ER is the exposure ratio at frequency f for the source;
EL is the investigation E-field reference level at frequency f;
HL is the investigation H-field reference level at frequency f;
E is the assessed E-field at frequency f for the source;
H is the assessed H-field at frequency f for the source;
SL is the power flux density limit at frequency f;
S is the assessed power flux density at frequency f for the source;
f is the frequency of the source
3.7
Member States
European Community Member States
3.8
reference levels
reference levels of exposure are provided for comparison with measured values of physical quantities;
compliance with all reference levels given in these guidelines (Council Recommendation 1999/519/EC [2])
will ensure compliance with basic restrictions
NOTE If measured values are higher than reference levels, it does not necessarily follow that the basic
restrictions have been exceeded, but a more detailed analysis is necessary to assess compliance with the basic
restrictions.
3.9
relevant domain
in the absence of a national or local definition, domain surrounding the site where the sum of the
exposure ratios from all sources of the site shall be more than 5 % at some height
3.10
relevant source
the principle of relevance establishes the conditions under which a radio source is considered relevant
such that account has to be taken of the contribution of that source when assessing RF exposure
NOTE In the absence of a national or local definition, the relevant source is a fixed radio source, in the
frequency range 100 kHz to 40 GHz, which has an exposure ratio more than 5 % in the relevant domain.

3.11
site operator
party controlling access to the controlled area
3.12
Stakeholder
SH
party involved in the process of this European Standard in accordance with the local or national
legislation
NOTE More than one stakeholder can be concerned (national authority, licence holder, broadcaster, site
operator, etc.).
3.13
Threshold Distance
TD
minimum distance in a given direction, beginning from the boundary of the controlled area, at which
compliance with reference level is achieved at all heights when considering emissions from the site
alone
3.14
worker
person employed by an employer, including trainees and apprentices but excluding domestic servants
[Directive 89/391/EEC [4]]
4 Assessment fundamentals
4.1 Level of protection
In Council Recommendation 1999/519/EC [2], it is stated:
“II. Member States, in order to provide for a high level of health protection against exposure to
electromagnetic fields, should:
(a) adopt a framework of basic restrictions and reference levels using Annex I.B as the basis;
(b) …
(c) aim to achieve respect of the basic restrictions given in Annex II for public exposure.”
and
“(15) Member States may, in accordance with the Treaty, provide for a higher level of protection than that set
out in this recommendation;”
In consequence, national or local relevant regulations define the level of protection for applying this
European Standard, expressed in basic restrictions and/or reference levels.
4.2 Worker/public exposure
In [2], it is stated:
“(14) In accordance with the principle of proportionality, this recommendation provides general principles and
methods for the protection of members of the public while leaving it to the Member States to provide for
detailed rules as regards the sources and practices which give rise to exposure to electromagnetic fields
and the classification, as work-related or not, of conditions of exposure of individuals, in accordance with
Community provisions concerning the safety and health protection of workers;”
Worker exposure at broadcast sites is dealt with in EN 50496 in accordance with
Directives 2004/40/EC and 2008/46/EC [3].

– 7 – EN 50554:2010
4.3 Stakeholders
In [2], it is stated:
“II. Member States, in order to provide for a high level of health protection against exposure to
electromagnetic fields, should:
(a) …
(b) implement measures according to this framework,…;”
and
“III. Member States, in order to facilitate and promote respect o
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