IEC 60860:2014

IEC 60860 ®
Edition 2.0 2014-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radiation protection instrumentation – Warning equipment for criticality
accidents
Instrumentation pour la radioprotection – Equipement de signalisation des
accidents de criticité
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IEC 60860 ®
Edition 2.0 2014-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radiation protection instrumentation – Warning equipment for criticality

accidents
Instrumentation pour la radioprotection – Equipement de signalisation des

accidents de criticité
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX Q
ICS 13.280 ISBN 978-2-8322-1638-5

– 2 – IEC 60860:2014 © IEC 2014
CONTENTS
FOREWORD . 4
1 Scope and object . 6
2 Normative references . 6
3 Terms and definitions, quantities and units . 7
3.1 Terms and definitions . 7
3.2 Quantities and units . 8
4 General requirements . 8
4.1 General characteristics . 8
4.2 Detection criterion . 8
4.3 Safety classification . 8
4.4 False alarms . 9
4.5 Failure of components . 9
4.6 Ease of decontamination . 9
4.7 Multiple function systems . 9
4.8 Interconnection cables and connectors . 9
4.8.1 Interconnecting cables . 9
4.8.2 Connectors . 10
4.9 Reliability . 10
4.10 Functional testing . 10
4.11 Interchangeability . 10
4.12 Detection subassembly . 10
4.13 Logic unit for signal treatment . 10
4.14 Alarm signals unit . 10
4.14.1 Alarm signals . 10
4.14.2 Alarm set point . 11
5 General test procedure . 11
5.1 Nature of tests . 11
5.2 Reference conditions and standard test conditions . 11
5.3 Point of test . 11
5.4 Reference radiation . 12
6 Radiation detection requirements . 12
6.1 General . 12
6.2 Energy response . 12
6.2.1 General . 12
6.2.2 Gamma detectors . 12
6.2.3 Neutron detectors . 13
6.3 Response time . 13
6.3.1 Requirements . 13
6.3.2 Method of test. 13
6.4 Alarm threshold of detection . 13
6.4.1 Requirements . 13
6.4.2 Method of test. 14
6.5 Variation of response with angle of incidence. 14
6.5.1 Requirements . 14
6.5.2 Method of test. 14

6.6 Overload characteristics . 14
6.6.1 Requirements . 14
6.6.2 Method of test. 14
7 Environmental requirements . 14
7.1 Temperature tests without source or injected electrical signal . 14
7.1.1 Requirements . 14
7.1.2 Method of test. 14
7.2 Environmental test with source or injected electrical signal . 15
7.2.1 Requirements . 15
7.2.2 Method of test. 15
8 Mechanical requirements . 15
9 Electromagnetic requirements . 15
10 Documentation . 15
Bibliography . 17

Table 1 – Reference and standard test conditions . 11
Table 2 – Summary of performance requirements . 16

– 4 – IEC 60860:2014 © IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIATION PROTECTION INSTRUMENTATION –
WARNING EQUIPMENT FOR CRITICALITY ACCIDENTS

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activit
...