Basic standard for the in-situ assessment of a broadcast site related to general public exposure to radio frequency electromagnetic fields

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.

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

La présente norme de base spécifie la méthode à utiliser pour évaluer l’exposition globale à des sources fixes de fréquences radio sur un site de radiodiffusion. Cette évaluation peut être effectuée à tout moment mais elle doit être réalisée en cas de modification de la situation de l’exposition à l’intérieur ou autour de ce site. Elle joue un rôle essentiel dans la coordination des différentes parties prenantes en vue d’assurer la conformité à l’exposition aux champs électromagnétiques à l’intérieur et autour d’un site de radiodiffusion, en particulier pour le matériel installé au sein du site.

Osnovni standard za terensko ocenjevanje mesta oddajanja v zvezi z izpostavljenostjo ljudi elektromagnetnim sevanjem

Ta osnovni standard določa metodo za ocenjevanje celotne izpostavljenosti vsem nepremičnim virom radijskih frekvenc na terenu. To ocenjevanje se lahko uporabi kadar koli, vendar mora biti izvedeno, kadar se stanje izpostavljenosti spreminja na ali okoli tega terena. Igra bistveno vlogo pri koordinaciji različnih zainteresiranih strani v zvezi z zagotavljanjem skladnosti izpostavljenosti elektromagnetnemu sevanju na in okoli terena, zlasti za opremo, ki je nameščena na terenu.

General Information

Status
Published
Public Enquiry End Date
29-Apr-2010
Publication Date
23-Nov-2010
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
12-Nov-2010
Due Date
17-Jan-2011
Completion Date
24-Nov-2010

RELATIONS

Buy Standard

Standard
SIST EN 50554:2011 - BARVE str. 14
English language
17 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day
Draft
kSIST FprEN 50554:2010
English language
17 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 50554:2011
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
SIST EN 50554:2011 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 50554:2011
---------------------- Page: 2 ----------------------
SIST EN 50554:2011
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
---------------------- Page: 3 ----------------------
SIST EN 50554:2011
EN 50554:2010 – 2 –
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
__________
---------------------- Page: 4 ----------------------
SIST EN 50554:2011
– 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

---------------------- Page: 5 ----------------------
SIST EN 50554:2011
EN 50554:2010 – 4 –
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
---------------------- Page: 6 ----------------------
SIST EN 50554:2011
– 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
for an individual source, between 100 kHz to 10 GHz:
2 2
E H
ER MAX , ;
EL HL
between 10 GHz and 40 GHz:
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.

---------------------- Page: 7 ----------------------
SIST EN 50554:2011
EN 50554:2010 – 6 –
3.11
site operator
party controlling access to the controlled area
3.12
Stakeholder

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

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].
---------------------- Page: 8 ----------------------
SIST EN 50554:2011
– 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 of the basic restrictions given in Annex II:

(a) …

(b) should evaluate situations involving sources of more than one frequency in accordance with the

formulae set out in Annex IV, both in terms of basic restrictions and reference levels;”

In consequence, national or local relevant regulations define the stakeholders responsible for applying

this European Standard.
Potentially involved stakeholders:
a) site owner;
b) licence holder;
c) national authority;
d) technical operator;
e) community representatives;
f) broadcaster;
g) local authority;
h) content provider;
i) party originating the change;
j) assessment manager;
k) measurement laboratory.
4.4 Actions required
In [2], it is stated:

“IV. Member States should consider both the risks and benefits in deciding whether action is required or not,

pursuant to this recommendation, when deciding on policy or adopting measures on exposure of members

of the public to electromagnetic fields.”
4.5 Simultaneous exposure to fields at different frequencies
In Annex IV of [2], it is stated:

“In situations where simultaneous exposure to fields of different frequencies occurs, the possibility that these

exposures will be additive in their effects must be considered.”
---------------------- Page: 9 ----------------------
SIST EN 50554:2011
EN 50554:2010 – 8 –

Simultaneous exposure to fields of different frequencies is the common case at broadcast sites and

has to be taken into account during the public and worker exposure assessment.

If a national or local relevant regulation treating multiple sources is available then this regulation shall

be applied. If not, a threshold level has to be set, linked with the level of protection: each relevant

source needs to be included to evaluate its influence.
4.6 Area to perform a detailed assessment
In [2], it is stated:

“(9) This recommendation … therefore applies, in particular, to relevant areas where members of the public

spend significant time in relation to the effects covered by this recommendation;”

Every place where the public and/or workers can access needs to be assessed. The emissions from a

broadcast site only need to be taken into account within its relevant domain.
5 Assessment methodology in the relevant domain when the exposure
situation changes
5.1 Introduction

Change is defined as a variation in the exposure situation which has not been previously assessed.

5.2 Determination of the Threshold Distance (TD)

The TD is the minimum distance out from the boundary of the controlled area at which compliance

with the basic standards (EN 50413 and EN 50383) is achieved at all heights when considering

emissions from the site alone. EN 50413 and EN 50383 give the methodology for determining the

threshold distance using the radiation pattern of the antennas.

The TD shall be determined by the broadcast operator of the highest authorized ERP value on the

site.

In the absence of data to carry out the required calculation, the threshold distance can be defined by

using a worst case configuration of the services.

An example of a simple method for estimation of the TD from a broadcast site is described in Annex A.

5.3 Area definition
Assessment of the overall exposure can be made by many stakeholders.
The analysis is split into three areas:
l) area A: inside the controlled area;

m) area B: outside the controlled area of the site but within the threshold distance;

n) area C: outside the threshold distance but inside the relevant domain.
---------------------- Page: 10 ----------------------
SIST EN 50554:2011
– 9 – EN 50554:2010
Minimum rectang
...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Osnovni standard za terensko ocenjevanje mesta oddajanja v zvezi z izpostavljenostjo ljudi elektromagnetnim sevanjemBasic standard for the in-situ assessment of a broadcast site related to general public exposure to radio frequency electromagnetic fields17.220.20Measurement of electrical and magnetic quantities13.280Varstvo pred sevanjemRadiation protectionICS:Ta slovenski standard je istoveten z:FprEN 50554:2010kSIST FprEN 50554:2010en01-april-2010kSIST FprEN 50554:2010SLOVENSKI

STANDARD
kSIST FprEN 50554:2010
Draft for vote
FINAL DRAFT EUROPEAN STANDARD FprEN 50554 NORME EUROPÉENNE
EUROPÄISCHE NORM January 2010

CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC -

All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Project: 16683 Ref. No. FprEN 50554:2010 E

ICS
English version

Basic standard for the in-situ assessment of a broadcast site related to general public exposure to radio frequency electromagnetic fields

To be completed
To be completed

This draft European Standard is submitted to CENELEC members for Unique Acceptance Procedure. Deadline for CENELEC: 2010-07-02.

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 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.

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.

kSIST FprEN 50554:2010
Draft for voteFprEN 50554:2010 – 2 –

Foreword 1 This draft European Standard was prepared by the Technical Committee CENELEC TC 106X, 2 Electromagnetic fields in the human environment. It is submitted to the Unique Acceptance Procedure. 3 The following dates are proposed: 4 – latest date by which the existence of the EN has to be announced at national level

(doa)

dor + 6 months – latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement

(dop)

dor + 12 months – latest date by which the national standards conflicting with the EN have to be withdrawn

(dow)

dor + 36 months (to be confirmed or modified when voting) __________ 5 kSIST FprEN 50554:2010

Draft for vote – 3 – FprEN 50554:2010 Contents 6 1 Scope ............................................................................................................................................... 4 7 2 Normative references ..................................................................................................................... 4 8 3 Terms and definitions .................................................................................................................... 4 9 4 Assessment fundamentals ............................................................................................................ 6 10 4.1 Level of protection .................................................................................................................. 6 11 4.2 Worker/public exposure .......................................................................................................... 6 12 4.3 Stakeholders ........................................................................................................................... 7 13 4.4 Actions required ...................................................................................................................... 7 14 4.5 Simultaneous exposure to fields at different frequencies ....................................................... 8 15 4.6 Area to perform a detailed assessment .................................................................................. 8 16 5 Assessment methodology in the relevant domain when the exposure situation 17 changes ........................................................................................................................................... 8 18 5.1 Introduction ............................................................................................................................. 8 19 5.2 Determination of the Threshold Distance (TD) ....................................................................... 8 20 5.3 Area definition ......................................................................................................................... 8 21 5.4 Assessment ............................................................................................................................ 9 22 5.5 How to take inaccuracy into account ....................................................................................10 23 5.6 Report of the assessment.....................................................................................................11 24 Annex A (informative)

Example of a simple method for estimation of the safety distance 25 from a broadcast site ...................................................................................................................12 26 Annex B (informative)

Assessment procedure in Germany and in Italy .........................................14 27 B.1 Assessment procedure in Germany .....................................................................................14 28 B.2 Assessment procedure in Italy .............................................................................................15 29 Bibliography ..........................................................................................................................................17 30

31 Figures 32 Figure 1 – Area definition ........................................................................................................................ 9 33 Figure A.1 – Pattern of antennas .......................................................................................................... 12 34 Figure A.2 – Safety distances for two antennas on the left side and one antenna on the right side .... 13 35

36 kSIST FprEN 50554:2010
Draft for voteFprEN 50554:2010 – 4 –
1 Scope

37 This basic standard specifies the method for assessing overall exposure from fixed radio frequency 38 sources at a broadcast site. This assessment may be applied at any time but must be carried out 39 when the exposure situation changes in or around this site. 40 It plays an essential role in the coordination of different stakeholders, with respect to ensuring EMF 41 exposure compliance in and around a broadcast site especially for equipment installed within the site

42 2 Normative references 43 The following referenced documents are indispensable for the application of this document. For dated 44 references, only the edition cited applies. For undated references, the latest edition of the referenced 45 document (including any amendments) applies. 46 EN 50383, Basic standard for the calculation and measurement of electromagnetic field strength and 47 SAR related to human exposure from radio base stations and fixed terminal stations for wireless 48 telecommunication systems (110 MHz – 40 GHz) 49 EN 50413, Basic standard on measurement and calculation procedures for human exposure to 50 electric, magnetic and electromagnetic fields (0 Hz – 300 GHz) 51 EN 50492, Basic standard for the in-situ measurement of electromagnetic field strength related to 52 human exposure in the vicinity of base stations 53 EN 50496, Determination of workers' exposure to electromagnetic fields and assessment of risk at a 54 broadcast site 55 3 Terms and definitions

56 For the purposes of this document, the following terms and definitions apply. 57 3.1

58 basic restriction 59 restrictions on exposure to time-varying electric, magnetic, and electromagnetic fields that are based 60 directly on established health effects. In the frequency range from 30 MHz to 10 GHz, the physical 61 quantity used is the specific absorption rate. Between 10 GHz and 40 GHz, the physical quantity is the 62 power density 63 3.2

64 broadcasting service 65 radiocommunication services in which the transmissions are intended for direct reception by the 66 general public. This service may include sound transmissions, television transmissions or other types 67 of transmission 68 3.3

69 broadcast site 70 site where one or more broadcast transmitters are operated 71 3.4

72 controlled area 73 area in which the operator may decide who is permitted to enter or remain or an area which, due to 74 actual circumstances, the public is prohibited from entering 75 kSIST FprEN 50554:2010

Draft for vote – 5 – FprEN 50554:2010 3.5

76 employer 77 any natural or legal person who has an employment relationship with the worker and has responsibility 78 for the undertaking and/or establishment 79 (Directive 89/391/EEC [4]) 80 3.6

81 Exposure Ratio (ER) 82 for an individual source, between 100 kHz to 10 GHz: 83 =22,HLHELEMAXER 84 Between 10 GHz and 40 GHz:

85 =SLSER 86 where 87 ER is the exposure ratio at frequency f for the source; 88 EL is the investigation E-field reference level at frequency f; 89 HL is the investigation H-field reference level at frequency f; 90 E is the assessed E-field at frequency f for the source; 91 H is the assessed H-field at frequency f for the source; 92 SL is the power flux density limit at frequency f; 93 S is the assessed power flux density at frequency f for the source; 94 f is the frequency of the source 95 3.7

96 Member States 97 European Community Member States 98 3.8

99 reference levels 100 reference levels of exposure are provided for comparison with measured values of physical quantities; 101 compliance with all reference levels given in these guidelines (Council Recommendation 1999/519/EC [2]) 102 will ensure compliance with basic restrictions. If measured values are higher than reference levels, it 103 does not necessarily follow that the basic restrictions have been exceeded, but a more detailed 104 analysis is necessary to assess compliance with the basic restrictions. 105 3.9

106 relevant domain 107 in the absence of a national or local definition, domain surrounding the site where the sum of the 108 exposure ratios from all sources of the site shall be more than 5 % 109 3.10

110 relevant source 111 the principle of relevance establishes the conditions under which a radio source is considered relevant 112 such that account has to be taken of the contribution of that source when assessing RF exposure. 113 In the absence of a national or local definition, the relevant source is a fixed radio source, in the 114 frequency range 100 kHz to 40 GHz, which has an exposure ratio more than 5 %

115 3.11

116 site operator 117 party controlling access to the controlled area 118 kSIST FprEN 50554:2010

Draft for voteFprEN 50554:2010 – 6 –
3.12

119 Stakeholder (SH) 120 party involved in the process of this European Standard in accordance with the local or national 121 legislation. More than one stakeholder can be concerned (national authority, licence holder, 122 broadcaster, site operator, …) 123 3.13

124 Threshold Distance (TD) 125 minimum distance in a given direction beginning from the boundary of the controlled area at which 126 compliance with reference level is achieved at all heights when considering emissions from the site 127 alone 128 3.14

129 worker 130 any person employed by an employer, including trainees and apprentices but excluding domestic 131 servants 132 (Directive 89/391/EEC [4]) 133 4 Assessment fundamentals 134 4.1 Level of protection 135 In Council Recommendation 1999/519/EC [2], it is stated: 136 “II. Member States, in order to provide for a high level of health protection against exposure to 137 electromagnetic fields, should: 138 (a) adopt a framework of basic restrictions and reference levels using Annex I.B as the basis;

139 (b) … 140 (c) aim to achieve respect of the basic restrictions given in Annex II for public exposure.” 141 and 142 “(15) Member States may, in accordance with the Treaty, provide for a higher level of protection than that set 143 out in this recommendation;” 144 In consequence, national or local relevant regulations define the level of protection for applying this 145 European Standard, expressed in basic restrictions and/or reference levels. 146 4.2 Worker/public exposure 147 In [2], it is stated: 148 “(14) In accordance with the principle of proportionality, this recommendation provides general principles and 149 methods for the protection of members of the public while leaving it to the Member States to provide for 150 detailed rules as regards the sources and practices which give rise to exposure to electromagnetic fields 151 and the classification, as work-related or not, of conditions of exposure of individuals, in accordance with 152 Community provisions concerning the safety and health protection of workers;” 153 Worker exposure at broadcast sites is dealt with in EN 50496 in accordance with 154 Directive 2008/46/EC [3]. 155 kSIST FprEN 50554:2010

Draft for vote – 7 – FprEN 50554:2010 4.3 Stakeholders 156 In [2], it is stated: 157 “II. Member States, in order to provide for a high level of health protection against exposure to 158 electromagnetic fields, should: 159 (a) …

160 (b) implement measures according to this framework,…;” 161 and 162 “III. Member States, in order to facilitate and promote respect of the basic restrictions given in Annex II: 163 (a) … 164 (b) should evaluate situations involving sources of more than one frequency in accordance with the 165 formulae set out in Annex IV, both in terms of basic restrictions and reference levels;” 166 In consequence, national or local relevant regulations define the stakeholders responsible for applying 167 this European Standard. 168 Potentially involved stakeholders: 169 – site owner; 170 – licence holder; 171 – national authority; 172 – technical operator; 173 – community representatives; 174 – broadcaster ; 175 – local authority; 176 – content provider; 177 – party originating the change; 178 – assessment manager; 179 – measurement laboratory. 180 4.4 Actions required 181 In [2], it is stated: 182 “IV. Member States should consider both the risks and benefits in deciding whether action is required or not, 183 pursuant to this recommendation, when deciding on policy or adopting measures on exposure of members 184 of the public to electromagnetic fields.” 185 kSIST FprEN 50554:2010

Draft for voteFprEN 50554:2010 – 8 –

4.5 Simultaneous exposure to fields at different frequencies 186 In Annex IV of [2], it is stated: 187 “In situations where simultaneous exposure to fields of different frequencies occurs, the possibility that these 188 exposures will be additive in their effects must be considered.” 189 Simultaneous exposure to fields of different frequencies is the common case at broadcast sites and 190 has to be taken into account during the public and worker exposure assessment.

191 If a national or local relevant regulation treating multiple sources is available then this regulation shall 192 be applied. If not, a threshold level has to be set, linked with the level of protection: each relevant 193 source needs to be included to evaluate its influence.

194 4.6 Area to perform a detailed assessment 195 In [2], it is stated: 196 “(9) This recommendation … therefore applies, in particular, to relevant areas where members of the public 197 spend significant time in relation to the effects covered by this recommendation;” 198 Every place where the public and/or workers can access needs to be assessed. The emissions from a 199 broadcast site only need to be taken into account within its relevant domain. 200 5 Assessment methodology in the relevant domain when the exposure 201 situation changes 202 5.1 Introduction 203 Change is defined as a variation in the exposure situation which has not been previously assessed.

204 5.2 Determination of the Threshold Distance (TD) 205 The TD is the minimum distance out from the boundary of the controlled area at which compliance 206 with the basic standards (EN 50413 and EN 50383) is achieved at all heights when considering 207 emissions from the site alone. EN 50413 and EN 50383 give the methodology for determining the 208 threshold distance using the radiation pattern of the antennas.

209 The TD shall be determined by the broadcast operator of the highest authorized ERP value on the 210 site. 211 In the absence of data to carry out the required calculation, the threshold distance can be defined by 212 using a worst case configuration of the services. 213 An example of a simple method for estimation of the TD from a broadcast site is described in Annex A.

214 5.3 Area definition 215 Assessment of the overall exposure can be made by many stakeholders. 216 The analysis is split into 3 areas: 217 – Area A: inside the controlled area; 218 – Area B: outside the controlled area of the site but within the threshold distance; 219 – Area C: outside the threshold distance but inside the relevant domain. 220 kSIST FprEN 50554:2010

Draft for vote – 9 – FprEN 50554:2010

221 Figure 1 – Area definition 222 In the absence of national rules, these areas are used to define the parties responsible for collating 223 the relevant data and also for carrying out the assessment. 224 5.4 Assessment 225 5.4.1 General 226 The stakeholder in charge of the assessment is defined in accordance with national rules (see 227 Annex B for German and Italian examples). This responsible stakeholder may not be unique for all 228 areas. As an example, the result of the assessment in area A, carried out b

...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.