SIST EN 50554:2021

SLOVENSKI STANDARD
oSIST prEN 50554:2019
01-december-2019
Osnovni standard za terensko ocenjevanje mesta oddajanja v zvezi z
izpostavljenostjo ljudi elektromagnetnemu sevanju
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: prEN 50554
ICS:
17.240 Merjenje sevanja Radiation measurements
oSIST prEN 50554:2019 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50554:2019

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oSIST prEN 50554:2019

EUROPEAN STANDARD DRAFT
prEN 50554
NORME EUROPÉENNE

EUROPÄISCHE NORM

October 2019
ICS 17.240 Will supersede EN 50554:2010 and all of its
amendments and corrigenda (if any)
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 l'exposition du Grundnorm für die Bewertung eines Rundfunkstandorts vor
public aux champs électromagnétiques de radiofréquence Ort in Bezug auf die Exposition der Allgemeinbevölkerung
d'un site de radiodiffusion gegenüber hochfrequenten elektromagnetischen Feldern
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2020-01-03.

It has been drawn up by CLC/TC 106X.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.



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
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 67142 Ref. No. prEN 50554 E

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1C ontents Page
2 European foreword . 3
3 1 Scope . 4
4 2 Normative references . 4
5 3 Terms and definitions . 4
6 4 Assessment fundamentals . 6
7 4.1 Level of protection . 6
8 4.2 Stakeholders . 6
9 4.3 Simultaneous exposure to electromagnetic fields at different frequencies . 7
10 4.4 Area to perform a detailed assessment . 7
11 4.4.1 General . 7
12 4.4.2 Determination of the relevant domain . 7
13 4.4.3 Determination of relevant sources . 8
14 5 Assessment methodology in the relevant domain when the exposure situation changes
15 . 8
16 5.1 Introduction . 8
17 5.2 Determination of the Threshold Distance (TD) . 8
18 5.3 Area definition . 8
19 5.4 Assessment . 9
20 5.4.1 General . 9
21 5.4.2 For area A . 9
22 5.4.3 For area B . 9
23 5.4.4 For area C . 10
24 5.5 How to take inaccuracy into account . 10
25 5.6 Report of the assessment. 10
26 Annex A (informative) Example of a simple method for estimation of the safety distance
27 from a broadcast site . 12
28 Annex B (informative) Assessment procedure in Germany and in Italy . 15
29 Bibliography . 18
30
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31 European foreword
32 This document (prEN 50554:2019) has been prepared by CLC/TC 106X “Electromagnetic fields in the
33 human environment”.
34 This document is currently submitted to the Enquiry.
35 The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be
(to be confirmed or
withdrawn modified when voting)
36 This document will supersede EN 50554:2010 and all of its amendments and corrigenda (if any).
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37 1 Scope
38 This document specifies the method for assessing overall exposure from all fixed radio frequency
39 sources at a broadcast site. This assessment can be applied at any time but is carried out when the
40 exposure situation changes in or around the aforementioned site.
41 This document plays an essential role in the coordination of different stakeholders, with respect to
42 ensuring EMF exposure compliance in and around a broadcast site especially for equipment installed
43 within the site.
44 2 Normative references
45 The following documents are referred to in the text in such a way that some or all of their content
46 constitutes requirements of this document. For dated references, only the edition cited applies. For
47 undated references, the latest edition of the referenced document (including any amendments) applies.
48 EN 50496, Determination of workers' exposure to electromagnetic fields and assessment of risk at a
49 broadcast site
50 3 Terms and definitions
51 For the purposes of this document, the following terms and definitions apply.
52 ISO and IEC maintain terminological databases for use in standardization at the following addresses:
53 — IEC Electropedia: available at http://www.electropedia.org/
54 — ISO Online browsing platform: available at http://www.iso.org/obp
55 3.1
56 basic restriction
57 restriction on exposure to time-varying and static electric, magnetic, and electromagnetic fields that is
58 based directly on established health effects
59 Note 1 to entry: In the frequency range from 100 kHz to 10 GHz, the physical quantity used is the specific
60 absorption rate. Between 10 GHz and 40 GHz, the physical quantity is the power density.
61 3.2
62 broadcasting service
63 radiocommunication service in which the transmissions are intended for direct reception by the general
64 public
65 Note 1 to entry: This service may include sound transmissions, television transmissions or other types of
66 transmission.
67 3.3
68 broadcast site
69 site where one or more broadcast transmitters are operated
70 3.4
71 controlled area
72 area in which the operator may decide who is permitted to enter or remain or an area which, due to
73 actual circumstances, the public is prohibited from entering
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74 3.5
75 exposure ratio
76 ER
77 for an individual source, between 100 kHz to 10 GHz:
22

   
EH

78 ER= MAX , ;
   

EL HL
   


79 between 10 MHz and 40 GHz:

S
80 ER=

SL

81 where
ER is the exposure ratio at frequency f of 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 Equivalent plane wave power density reference level at frequency f;
S is the assessed Equivalent plane wave power density at frequency f for the source
82 3.6
83 reference level
84 level of exposure provided for comparison with measured values of physical quantities
85 Note 1 to entry: Compliance with all reference levels given in the Council Recommendation 1999/519/EC will
86 ensure compliance with basic restrictions.
87 Note 2 to entry: If measured values are higher than reference levels, it does not necessarily follow that the basic
88 restrictions have been exceeded, but a more detailed analysis is necessary to assess compliance with the basic
89 restrictions.
90 Note 3 to entry: In the frequency range from 100 kHz to 10 GHz, the physical quantity used is electric field strength,
91 and magnetic field strength. In the frequency range from 10 MHz to 40 GHz, the equivalent plane wave power
92 density can also be used.
93 3.7
94 relevant domain
95 in the absence of a national or local definition, domain surrounding the site where the TER (3.12) exceed
96 0,05 at any height
97 3.8
98 relevant source
99 principle of relevance establishes the conditions under which a radio source is considered relevant such
100 that account has to be taken of the contribution of that source when assessing RF exposure
101 Note 1 to entry: In the absence of a national or local definition, the relevant source is a fixed radio source, in the
102 frequency range 100 kHz to 40 GHz, which has an exposure ratio more than 0,05 at an examinated location.
103 3.9
104 site operator
105 party controlling access to the controlled area
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106 3.10
107 stakeholder
108 SH
109 party involved in the process of this document in accordance with the local or national legislation
110 Note 1 to entry: More than one stakeholder can be concerned (national authority, licence holder, broadcaster, site
111 operator, etc.).
112 3.11
113 threshold distance
114 TD
115 minimum distance in a given direction, beginning from the boundary of the controlled area, at which
116 compliance with reference level is achieved at all heights when considering emissions from the site
117 alone
118 3.12
119 Total Exposure Ratio
120 TER
121 total exposure ratio is the sum of exposure ratios:
TER= ER
i
∑
i
122
123 where ER is the exposure ratio of the source i
i
124 4 Assessment fundamentals
125 4.1 Level of protection
126 National or local relevant regulations provide information on the level of protection for applying this
127 document, expressed in basic restrictions and/or reference levels.
128 4.2 Stakeholders
129 National or local relevant regulations provide information on the stakeholders responsible for applying
130 this document.
131 Potentially involved stakeholders:
132 a) site owner;
133 b) licence holder;
134 c) national authority;
135 d) technical operator;
136 e) community representatives;
137 f) broadcaster;
138 g) local authority;
139 h) content provider;
140 i) party originating the change;
141 j) assessment manager;
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142 k) measurement laboratory.
143 4.3 Simultaneous exposure to electromagnetic fields at different frequencies
144 Simultaneous exposure to electromagnetic fields of different frequencies is the common case at
145 broadcast sites and shall be taken into account during the public and worker exposure assessment.
146 If a national or local relevant regulation treating multiple sources is available, then this regulation must
147 be applied. If not, a threshold level shall be set, linked with the level of protection: each relevant source
148 needs to be included to evaluate its influence.
149 4.4 Area to perform a detailed assessment
150 4.4.1 General
151 The emissions from a broadcast site only need to be taken into account within its relevant domain.
152 Within the relevant domain every place where the public can access needs to be assessed.
153 4.4.2 Determination of the relevant domain
154 Domain surrounding the site where the total exposure ratio (TER) is more than 0,05.
155 The relevant distance (RD) is the distance to the boundary of the relevant domain. In far field conditions,
156 the relevant distance for each source can be can deduced from the threshold distance (TD) if exists:
2
RD SL 1
157
2
S 0,05
TD
RD
158 Or
22 2
RD EL HL 1
159
22 2
0,05
TD E H
RD RD
TD
160 RD 45, TD
0,05
161 Where S and SL are respectively the Equivalent plane wave power density at the relevant distance
RD
2
162 and the Equivalent plane wave power density reference level (W/m ).
163 E and EL are respectively the E field intensity at the relevant distance and the E field reference level
RD
164 (V/m).
165 H and HL are respectively the H field intensity at the relevant distance and the E field reference level
RD
166 (A/m).
167 RD can be also calculated from the EIRP using the following formula:
EIRP EIRP
168 RD 13,
0,05SL4π SL
169 RD of all sources of the site can be calculated using the next formula:
EIRP
i
170 RD= 13,
∑
SL
i
i
7
==
==
===
==

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171 Where EIRPi is the EIRP of the source i and SL is the equivalent plane wave power density reference
i
172 level at frequency of source i.
173 More information can be found in EN 62232.
174 4.4.3 Determination of relevant sources
175 The relevant sources can be determined by calculation or measurement.
176 Within the relevant domain, the ER of every source is calculated or measured separately. If the ER of a
177 source exceed 0,05 then is considered as relevant.
178 More information on calculation and measurement can be found in EN 62232.
179 5 Assessment methodology in the relevant domain when the exposure
180 situation changes
181 5.1 Introduction
182 Change is defined as a variation in the exposure situation which has not been previously assessed.
183 5.2 Determination of the Threshold Distance (TD)
184 The TD is the minimum distance out from the boundary of the controlled area at which compliance with
185 the recommendation 1999/519/EC reference level is achived at all heights when considering emissions
186 from the site alone. EN 50413 and EN 62232 give the methodology for determining the threshold
187 distance using the radiation pattern of the antennas.
188 The TD shall be determined by the broadcast operator of the highest authorized ERP value on the site.
189 In the absence of data to carry out the required calculation, the threshold distance can be defined by
190 using the worst-case configuration of the services.
191 An example of a simple method for estimation of the TD from a broadcast site is described in Annex A.
192 5.3 Area definition
193 Assessment of the overall exposure can be made by many stakeholders.
194 The analysis is split into three areas:
195 — area A: inside the controlled area;
196 — area B: outside the controlled area of the site but within the threshold distance;
197 — area C: outside the threshold distance but inside the relevant domain.
198 NOTE See Figure 1.
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199
200 Figure 1 — Area definition
201 In the absence of national rules, these areas are used to define the parties responsible for collating the
202 relevant data and also for carrying out the assessment.
203 5.4 Assessment
204 5.4.1 General
205 The stakeholder in charge of the assessment is defined in accordance with national rules (see Annex B
206 for German and Italian examples). This responsible stakeholder might not be unique for all areas. As an
207 example, the result of the assessment in area A, carried out by a site owner, could be an input to a
208 telecom operator assessing areas A, B and C following a change in its equipment configuration.
209 5.4.2 For area A
210 The stakeholders in charge of the assessment will be the site operator or the broadcast operator.
211 The site operator is responsible for gathering the data required for the assessment within area A from:
212 — characteris
...