Criteria for accident monitoring instrumentation for nuclear power generating stations

IEC 63147:2017(E) contains the functional and design criteria for accident monitoring instrumentation for new plant designs and nuclear power generating stations desiring to perform design modifications. The purpose of this standard is to establish selection, design, performance, qualification, and display criteria for accident monitoring instrumentation for anticipated operational occurrences, design basis events, and severe accidents.
This standard applies to accident monitoring instrumentation intended for use during the following operations:
- As required for planned operator action related to accident mitigation,
- For assessing plant conditions, safety system performance, and making decisions related to plant response to abnormal events,
- For achieving and maintaining safe shutdown following an accident
This standard does not apply to the following:
- Accident monitoring instrumentation that is intended solely for historical recording or solely for maintenance purposes
- Other instrumentation that may be available during accident conditions.
This standard is an adoption of IEEE 497-2016 by IEC.
When applied in an IAEA / IEC environment this standard is to be used in conjunction with IEC TR 63123.

General Information

Status
Published
Publication Date
13-Dec-2017
Current Stage
PPUB - Publication issued
Start Date
12-Dec-2017
Completion Date
14-Dec-2017
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IEC 63147:2017 - Criteria for accident monitoring instrumentation for nuclear power generating stations
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IEC 63147 ®
Edition 1.0 2017-12

IEEE Std 497
INTERNATIONAL
STANDARD
Criteria for accident monitoring instrumentation for nuclear power generating
stations
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IEC 63147 ®
Edition 1.0 2017-12
IEEE Std 497™
INTERNATIONAL
STANDARD
Criteria for accident monitoring instrumentation for nuclear power generating

stations
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.120.20 ISBN 978-2-8322-5031-0

IEEE Std 497-2016
Contents
1. Overview . 1
1.1 Scope . 1
1.2 Purpose . 1
1.3 Application . 1
2. Normative references . 2
2.1 Normative references for IEEE domain . 2
2.2 Normative references for IEC domain . 3
3. Definitions . 3
4. Selection criteria . 6
4.1 Type A variables . 6
4.2 Type B variables . 6
4.3 Type C variables . 7
4.4 Type D variables . 7
4.5 Type E variables . 7
4.6 Type F variables . 8
4.7 Documentation of selection criteria . 8
5. Performance criteria . 9
5.1 Range . 9
5.2 Accuracy . 9
5.3 Response time .10
5.4 Required operating time .10
5.5 Reliability .10
5.6 Documentation of performance criteria .10
6. Design criteria .11
6.1 Single failure.11
6.2 Common cause failure .11
6.3 Independence and physical separation .11
6.4 Isolation .12
6.5 Information ambiguity .12
6.6 Power supply .13
6.7 Calibration .13
6.8 Testability .13
6.9 Direct measurement .14
6.10 Control of access .14
6.11 Maintenance and repair .14
6.12 Minimizing measurements .14
6.13 Auxiliary supporting features .14
6.14 Portable instruments .15
6.15 Documentation of design criteria .15
7. Qualification criteria .15
7.1 Type A variables .15
7.2 Type B variables .15
7.3 Type C variables .16
7.4 Type D variables .16
7.5 Type E variables .16
Published by IEC under license from IEEE. © 2016 IEEE. All rights reserved.

– ii – IEC 63147:2017 © IEC 2017
IEEE Std 497-2016
7.6 Type F variables .16
7.7 Portable instruments .17
7.8 Operating time .17
7.9 Documentation of qualification criteria .17
8. Display criteria .17
8.1 Display characteristics .17
8.2 Trend or rate information .18
8.3 Display identification.18
8.4 Type of monitoring channel display .18
8.5 Display location .18
8.6 Information ambiguity .19
8.7 Recording .19
8.8 Digital display signal validation .19
8.9 Documentation of display criteria .19
9. Quality assurance.19
Annex A (informative) Accident monitoring instrument channel accuracy .20
A.1 Introduction .20
A.2 Accuracy requirement groupings according to usage .20
A.3 Typical accuracy requirements .20
Annex B (informative) Examples of monitoring channel displays.21
Annex C (informative) Operational state diagram .23
Annex D (informative) Bibliography .24
Annex E (informative) IEEE list of participants .25

Published by IEC under license from IEEE. © 2016 IEEE. All rights reserved.

IEEE Std 497-2016
CRITERIA FOR ACCIDENT MONITORING INSTRUMENTATION
FOR NUCLEAR POWER GENERATING STATIONS

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 c
...

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