EN 50496:2018

SLOVENSKI STANDARD
01-oktober-2018
1DGRPHãþD
SIST EN 50496:2009
Ugotavljanje izpostavljenosti delavca elektromagnetnemu sevanju in ocena
tveganja na mestu oddajnika
Determination of workers' exposure to electromagnetic fields and assessment of risk at a
broadcast site
Ermittlung der Exposition von Arbeitnehmern gegenüber elektromagnetischen Feldern
und Bewertung des Risikos am Standort eines Rundfunksenders
Détermination de l'exposition des travailleurs aux champs électromagnétiques et
évaluation des risques sur un site de radiodiffusion
Ta slovenski standard je istoveten z: EN 50496:2018
ICS:
17.240 Merjenje sevanja Radiation measurements
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50496
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2018
ICS 17.240 Supersedes EN 50496:2008
English Version
Determination of workers' exposure to electromagnetic fields and
assessment of risk at a broadcast site
Détermination de l'exposition des travailleurs aux champs Ermittlung der Exposition von Arbeitnehmern gegenüber
électromagnétiques et évaluation des risques sur un site de elektromagnetischen Feldern und Bewertung des Risikos
radiodiffusion am Standort eines Rundfunksenders
This European Standard was approved by CENELEC on 2017-12-25. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50496:2018 E
Contents Page
European foreword . 3
1 . Scope . 4
2 . Normative references. 4
3 . Terms and definitions . 5
4 . Assessment methods . 7
5 . Collection of technical data . 8
6 . Determination of exposure levels by calculation or measurement . 9
7 . Zoning of exposure work place .12
8 . Checking of operating procedures in the different exposure work places.16
9 . Information and training .19
10 . Assessment report .20
Annex A (normative) Summation formulae .21
A.1 . General .21
A.2 . Frequency range from 1 Hz to 10 MHz .21
A.3 . Frequency range from 100 kHz to 300 GHz .22
A.4 . Contact currents in the frequency range 1 Hz to 110 MHz .23
Annex B (informative) Marking .24
Bibliography .25

European foreword
This document (EN 50496:2018) has been prepared by CLC/TC 106X “Electromagnetic fields in the
human environment”.
The following dates are fixed:
• latest date by which this document has (dop) 2018-12-25
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-12-25
standards conflicting with this document
have to be withdrawn
This document supersedes EN 50496:2008.
The main changes included in the EN 50496:2018 with respect to EN 50496:2008 are consequential to
the replacement of Directive 2004/40/EC by Directive 2013/35/EU.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
1 Scope
This European Standard provides methods for assessing compliance with the requirements of the
Directive 2013/35/EU at a site operating one or more broadcast transmitters.
This standard covers the frequency range up to 40 GHz.
Users of this standard are invited to consult the national legislation in order to identify the national
regulations and requirements. These national regulations and requirements can have additional
requirements that are not covered by this standard.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 50413, Basic standard on measurement and calculation procedures for human exposure to electric,
magnetic and electromagnetic fields (0 Hz - 300 GHz)
EN 50420, Basic standard for the evaluation of human exposure to electromagnetic fields from a stand
alone broadcast transmitter (30 MHz - 40 GHz)
EN 50475, Basic standard for the calculation and the measurement of human exposure to
electromagnetic fields from broadcasting service transmitters in the HF bands (3 MHz - 30 MHz)
EN 62226-2-1, Exposure to electric or magnetic fields in the low and intermediate frequency range -
Methods for calculating the current density and internal electric field induced in the human body - Part
2-1: Exposure to magnetic fields - 2D models (IEC 62226-2-1)
EN 50527-1, Procedure for the assessment of the exposure to electromagnetic fields of workers bearing
active implantable medical devices — Part 1: General
EN 50527-2-1, Procedure for the assessment of the exposure to electromagnetic fields of workers
bearing active implantable medical devices — Part 2-1: Specific assessment for workers with cardiac
pacemakers
EN 50647, Basic standard for the evaluation of workers' exposure to electric and magnetic fields from
equipment and installations for the production, transmission and distribution of electricity
Council Recommendation 1999/519/EC of 12 July 1999 on the limitation of exposure of the general
public to electromagnetic fields (0 Hz to 300 GHz) (Official Journal L 199 of 30 July 1999)
Directive 2013/35/EU of the European parliament and of the council of 26 June 2013 on the minimum
health and safety requirements regarding the exposure of workers to the risks arising from physical
agents (electromagnetic fields) (20th individual Directive within the meaning of Article 16 of Directive
89/391/EEC)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
action levels
action levels (ALs)’ means operational levels established for the purpose of simplifying the process of
demonstrating the compliance with relevant ELVs or, where appropriate, to take relevant protection or
prevention measures specified in Directive 2013/35/EU
Note 1 to entry: For electric fields, ‘low ALs’ and ‘high ALs’ means levels which relate to the specific protection or
prevention measures specified in Directive 2013/35/EU.
Note 2 to entry: For magnetic fields, ‘low ALs’ means levels which relate to the sensory effects ELVs and ‘high
ALs’ to the health effects ELVs.
3.2
AIMD
Active Implantable Medical Device
3.3
antenna
device that serves as a transducer between a guided wave (e.g. coaxial cable) and a free space wave,
or vice versa
3.4
near-field region
region generally in proximity to an antenna or other radiating structure, in which the electric and magnetic
fields do not have a substantially plane-wave character, but vary considerably from point to point
Note 1 to entry: The near-field region is further subdivided into the reactive near-field region, which is closest to
the radiating structure and that contains most or nearly all of the stored energy, and the radiating near-field region
where the radiation field predominates over the reactive field, but lacks substantial plane-wave character and is
complicated in structure.
3.5
broadcasting service
radiocommunication service in which the transmissions are intended for direct reception by the general
public
Note 1 to entry: This service can include sound transmissions, television transmissions or other types of
transmission, e.g. data.
3.6
broadcast site
site operating one or more broadcast transmitters
3.7
contact current
current flowing into the body resulting from contact with a conductive object in an electromagnetic field
Note 1 to entry: This is the localized current flow into the body (usually the hand, for a light brushing contact).
Note 2 to entry: Shocks and burns can be the adverse indirect effects.
Note 3 to entry: Contact current relates to a short-term effect and cannot be time-averaged.
3.8
induced current
current flowing inside a human body resulting directly from an exposure to an electromagnetic field
3.9
employer
any 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)
3.10
exposure limit values (ELVs)
limits on exposure to electromagnetic fields in Directive 2013/35/EU established on the basis of
biophysical and biological considerations, in particular on the basis of scientifically well-established
short-term and acute direct effects, i.e. thermal effects (SAR, Power density) and electrical stimulation
of tissues (internal electric field):
— health effects ELVs: ELVs above which workers might be subject to adverse health effects, such
as thermal heating or stimulation of nerve and muscle tissue;
— sensory effects ELVs: sensory effects ELVs apply to frequency ranges of 0 Hz to 400 Hz
(magnetic and electric fields) and 0,3 GHz to 6 GHz (pulsed signals) and above which workers might be
subjected to transient disturbed sensory perceptions and minor changes in brain functions
3.11
local safety instruction
safety instructions relating to a specific broadcast site and containing the information specified in
Clause 8:
— it needs to include all the necessary safety-related indications and, if applicable, point out the
possible risk of exposure to electromagnetic fields where these are at levels above the worker action
levels;
— it could include all the necessary safety-related indications and, if applicable, point out the
possible risk of exposure to electromagnetic fields where these are at levels above the limits for the
general public
3.12
magnetic flux density
magnetic flux density (B) is a vector quantity resulting in a force that acts on moving charges. The
magnitude of magnetic flux density (B) is expressed in tesla (T)
B = µ H
where µ is the permeability of the medium and H is the magnetic field strength
Note 1 to entry: In free space and in biological materials, magnetic flux density and magnetic field strength (H)
can be interchanged using the magnetic field strength of H = 1 A/m equivalence to magnetic flux density of
−7
B = 4π 10 T (approximately 1,25 microtesla).
3.13
power density
power per area unit normal to the direction of electromagnetic wave propagation
2 2
S=EH = E /Z=H Z
Note 1 to entry: For plane waves the power density (S), electric field strength (E) and magnetic field strength (H)
= 120π Ω = 377 Ω
are related by Z = Z0
Note 2 to entry: E and H are expressed in units of V/m and A
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