Radiation protection instrumentation in nuclear facilities - Centralized systems for continuous monitoring of radiation and/or levels of radioactivity - Part 1: General requirements

IEC 61559-1:2009 specifies general characteristics, general test procedures, radiation, electrical, safety, and environmental characteristics and the identification certificate for centralized systems intended for continuous monitoring of radiation and/or levels of radioactivity installed in nuclear facilities, primarily in support of radiological protection in the working areas.

Instrumentation pour la radioprotection dans les installations nucléaires - Ensembles centralisés pour la surveillance en continu des rayonnements et/ou des niveaux de radioactivité - Partie 1: Exigences générales

La CEI 61559-1:2009 spécifie les caractéristiques générales, les procédures générales d'essais, les caractéristiques des rayonnements, ainsi que les caractéristiques électriques, de sécurité et environnementales et le certificat d'identification pour les systèmes centralisés destinés à la surveillance en continu des rayonnements et/ou des niveaux de radioactivité installées dans les installations nucléaires, essentiellement pour contribuer à la protection radiologique dans les lieux de travail.

General Information

Status
Published
Publication Date
25-May-2009
Current Stage
PPUB - Publication issued
Start Date
31-May-2009
Completion Date
26-May-2009
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IEC 61559-1:2009 - Radiation protection instrumentation in nuclear facilities - Centralized systems for continuous monitoring of radiation and/or levels of radioactivity - Part 1: General requirements
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IEC 61559-1 ®
Edition 1.0 2009-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radiation protection instrumentation in nuclear facilities – Centralized systems
for continuous monitoring of radiation and/or levels of radioactivity –
Part 1: General requirements
Instrumentation pour la radioprotection dans les installations nucléaires –
Ensembles centralisés pour la surveillance en continu des rayonnements et/ou
des niveaux de radioactivité –
Partie 1: Exigences générales
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IEC 61559-1 ®
Edition 1.0 2009-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radiation protection instrumentation in nuclear facilities – Centralized systems
for continuous monitoring of radiation and/or levels of radioactivity –
Part 1: General requirements
Instrumentation pour la radioprotection dans les installations nucléaires –
Ensembles centralisés pour la surveillance en continu des rayonnements et/ou
des niveaux de radioactivité –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
V
CODE PRIX
ICS 13.280 ISBN 978-2-88910-544-1
– 2 – 61559-1 © IEC:2009
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.9
2 Normative references .9
3 Terms, definitions and abbreviations .11
3.1 Terms and definitions .11
3.2 Test nomenclature.12
3.3 Abbreviated terms .12
4 Design requirements .12
4.1 General remarks.12
4.1.1 General .12
4.1.2 Safety classification.12
4.1.3 System configuration .13
4.1.4 Location of detector assemblies .14
4.2 Design requirements for the assemblies .14
4.2.1 Detector assembly.14
4.2.2 Processing assembly.14
4.2.3 Alarm assemblies .16
4.3 Central computer.17
4.3.1 General .17
4.3.2 Functional requirements of the central computer .17
4.3.3 Checking normal operation of the equipment .18
4.4 Electrical characteristics.18
4.4.1 General .18
4.4.2 Electromagnetic compatibility .19
5 General Test procedures .19
5.1 Test requirements .19
5.1.1 General .19
5.1.2 Test performed under standard test conditions .20
5.1.3 Test performed with variation of influence quantities .20
5.2 Test procedures for the detector assembly .20
5.3 Test procedures for the monitoring assembly .20
5.3.1 Alarm trip range.20
5.3.2 Equipment failure alarms .21
5.3.3 Alarm response time and stability .21
5.4 Test procedures for the central computer .21
5.4.1 Individual tests of access channels.21
5.4.2 Whole tests of access channels.21
5.4.3 Tests for functional validation and verification. .21
5.5 Test procedures for effects of power supply and environmental variations.22
5.5.1 Power supply variations.22
5.5.2 Power supply variations (interruptions and transients) .23
5.5.3 Surges and oscillatory waves .23
5.5.4 Ambient temperature and humidity .24
5.5.5 Electromagnetic compatibility .24
5.5.6 External electromagnetic immunity and electrostatic discharge.24

61559-1 © IEC:2009 – 3 –
5.5.7 Electromagnetic emission .24
6 Documentation .25
6.1 Report on type testing .25
6.2 Certificate .25
6.3 Operating and maintenance manual .25
Annex A (informative) Selection of a measuring unit .31
Annex B (informative) Guidance on location of detector assemblies.32
Bibliography.34

Figure 1 – Monitoring assembly inside monitored area.26
Figure 2 – Monitoring assembly outside monitored area.26
Figure 3 – Centralized configuration .27
Figure 4 – Centralized configuration .28

Table 1 – Reference conditions and standard test conditions .29
Table 2 – Tests performed under standard test conditions .29
Table 3 – Tests performed with variations of influence quantities.30

– 4 – 61559-1 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIATION PROTECTION INSTRUMENTATION IN NUCLEAR
FACILITIES – CENTRALIZED SYSTEMS FOR CONTINUOUS
MONITORING OF RADIATION AND/OR LEVELS OF RADIOACTIVITY –

Part 1: General requirements
FOREWORD
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