NB/T 20063-2012 PDF English
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NB/T 20063-2012: Glossary of terms of instrumentation and control for nuclear power plants---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/NBT20063-2012
ENERGY INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 27.120.01
F 80
Filing number. 35988-2012
Glossary of terms of instrumentation and control for
nuclear power plants
Issued on. JANUARY 06, 2012
Implemented on. APRIL 06, 2012
Issued by. National Energy Administration
Table of Contents
Foreword... 3
1 Scope... 4
2 Basic concepts... 4
3 Instrumentation control systems and device... 18
4 Computer applications... 36
5 Man-machine interface... 41
6 Qualification... 46
7 Test and maintenance... 57
References... 67
English index... 71
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the Energy Industry Standardization Technical
Committee for Nuclear Power.
This standard shall be under the jurisdiction of the Nuclear Industry
Standardization Institute.
Drafting organization of this standard. China Kehua Nuclear Power Technology
Research Institute Co., Ltd.
The main drafters of this standard. Zhou Zhou, He Wenkai, Xiong Guohua, Lu
Xiusheng.
Glossary of terms of instrumentation and control for
nuclear power plants
1 Scope
This standard specifies common terms and definitions related to
instrumentation and control (I&C) for nuclear power plants and their power
sources.
This standard applies to applications for nuclear power plant; other nuclear
facilities can be used with reference to it.
2 Basic concepts
2.1
Operational states
A collective name for two types of states, normal operation and anticipated
operational occurrences.
[HAF 102 (2004)]
2.2
Normal operation
The operation of nuclear power plants within specified operating limits and
conditions.
[HAF 102 (2004)]
2.3
Design basis
Information that determines the value, or range of parameters, of a structure,
system, component, or device that performs a specific function and is a
design boundary. This information can be either limits (derived from
generally accepted practices to achieve a functional goal), or some
requirements [derived from operational analysis of the assumed events
wherein the structures, systems, components shall meet their functional
objects and (or) operational experience].
[ANSI/ISA-67.06.01.2002, definition 3.5]
3 Instrumentation control systems and device
3.1 Instrument control system
3.1.1
Electrical system
Integration of electrical device that performs a certain function.
[RCCE.2005]
3.1.2
Instrumentation and control system (l&C system)
A system based on electrical, electronic, and/or programmable electronic
technology, that performs I&C functions as well as service and supervision
functions related to the operation of the system itself.
3.1.3
I&C systems important for safety
The instrumentation control system whose failure or malfunction may cause
the plant personnel or the public to experience excessive radiological
exposure to the instrumentation and control systems, as well as those
instrumentation control system to prevent unforeseen consequences of
anticipated operational occurrences, including safety systems and safety-
related instrumentation control systems.
4 Computer applications
4.1
Computer-based system
The I&C system whose functions are mainly dependent on or completely
implemented by microprocessors, programmable electronics or computers.
[NB/T 20026-2010, definition 3.10]
4.2
Software
Programs (ordered instruction sets), data, rules, and all related documents
related to the operation of computer-based I&C systems.
[NB/T 20054-2011, definition 3.30]
4.4
Application function
The function of an I&C system that performs tasks that are related to a
controlled process and not related to the functions of the system itself.
Note 1.The application function is usually a sub-function of the I&C function.
Note 2.Rewrite NB/T 20026-2010, definition 3.1.
4.5
Application software
The part of the I&C system software that implements application functions.
[NB/T 20026-2010, definition 3.2]
4.6
Operational system software
Software running on the target processor during operation, such as software
for. input and / or output drivers, services, interrupt management, scheduler,
communication driver, application-oriented libraries, online diagnostics,
redundancy, degradation management.
[NB/T 20054-2011, definition 3.22]
4.9
Software modification
A modification to an approved file (or set of files), such modification will result
in a change in executable code.
Note. In the early stages of software development (for example, faults found
in later stages of development) and in the stage where the software has been
used, software modification behavior may exist.
[NB/T 20054-2011, definition 3.32]
4.10
Pre-developed software (PDS)
Existing software available as a commercial or proprietary product for
computer-based systems.
4.11
Software failure
A system failure due to a design fault in a software component.
Note 1.Because the software consists only of the design without wear or
physical failure, all software failures are caused by design faults. Because
the triggering events that activate software faults occur randomly during
system operation, software failure also occurs randomly.
5 Man-machine interface
5.1
Alarms
When the meter's reading exceeds a setting value or exceeds the setting
range, an audible or visual signal is triggered on the alarm panel and other
displays, to provide field personnel with information about the device or
event.
[GB/T 4960.6-2008, definition 4.4.23]
5.5
Alarm prioritization
Alarm signal processing function or mechanism for alarms classified by
importance.
Note. Priority can be defined in advance or determined dynamically based
on plant operating conditions.
[NB/T 20027-2010, definition 3.12]
5.6
Alarm signal processing
The logic or mechanism for processing the alarm signal before identifying
the alarm and passing it to the alarm display processing unit for display to
the operator.
5.7
Alarm signal validation
The alarm signal processing function or mechanism, which is used to
determine whether the alarm signal correctly expresses the corresponding
process or system status.
6 Qualification
6.1 Device qualification
6.1.1
Baseline parameter
The initially determined technical data, which is used as a benchmark for
evaluating the acceptable performance of the qualified sample.
[IEEE 572.2006, definition 3.1]
6.1.6
Design life
The time it takes for a device to meet its required performance under a
specified set of operating conditions.
[IEEE 323.2003, definition 3.7]
6.1.7
Installed life
The period from installation to removal of a device or component, during
which the device or component can withstand the design operating
conditions.
Note. In the case of periodic replacement of certain components, the device
may have a 40a installed life, so the installation life of the components may
be less than 40a.
[GB/T 12727-2002, definition 3.10]
6.1.8
Qualified life
The time that a structure, system, or component has been tested, analyzed,
and / or operationally proven to be capable of operating within acceptance
criteria under specific operating conditions, while maintaining the execution
of the safety functions under design basis accident or seismic conditions.
[IEEE 323.2003, definition 3.16]
7 Test and maintenance
7.1 Test
7.1.1
Qualification testing
Testing to prove to a user that a software item or system meets its specified
requirements.
[GB/T 13629-2008, definition 3.36]
7.1.6
Overlap testing
In order to check the function of the entire channel, train or load group, tests
performed on different parts or subsystems of the channel, train or load
group. Testing of different parts or subsystems shall cover adjacent
components.
[GB/T 5204-2008, definition 3.5]
7.1.7
Functional test
A test to determine that a component or system performs its intended
function.
[GB/T 5204-2008, definition 3.7]
7.1.8
Performance test
Tests to evaluate device’s performance to meet expected requirements. Test
results can be used to support the determination of operability.
7.1.12
Conventional test
Conformance tests on each product under reference or standard test
conditions.
[GB/T 4960.6-2008, definition 3.4.4]
7.1.13
Routine test
After conventional tests, tests carried out on a sampling basis to verify the
suitability of the product for the amount of influence.
[GB/T 4960.6-2008, definition 3.4.5]
7.1.14
Preoperational test
After the system device is installed and integrated, the test which is used to
verify that the system and its components can function as designed before
the fuel is loaded.
7.2 Maintenance
7.2.1
Maintenance
Organized management and technical activities to keep structures, systems
and components in good working order, including both preventive
maintenance and corrective maintenance (or repair).
[IAEA Safety Glossary. 2007]
7.2.5
Bypass
A device that intentionally but temporarily disables a line or system, such as
shorting the contacts of a relay.
[GB/T 4960.6-2008, definition 4.1.26]
7.2.6
Maintenance bypass
The action or measure of manually bypassing one or more devices in a
system in order to replace, maintain, inspect, or calibrate the device.
Note. GB/T 4960.6-2008, revised definition 4.1.28.
NB/T 20063-2012
ENERGY INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 27.120.01
F 80
Filing number. 35988-2012
Glossary of terms of instrumentation and control for
nuclear power plants
Issued on. JANUARY 06, 2012
Implemented on. APRIL 06, 2012
Issued by. National Energy Administration
Table of Contents
Foreword... 3
1 Scope... 4
2 Basic concepts... 4
3 Instrumentation control systems and device... 18
4 Computer applications... 36
5 Man-machine interface... 41
6 Qualification... 46
7 Test and maintenance... 57
References... 67
English index... 71
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the Energy Industry Standardization Technical
Committee for Nuclear Power.
This standard shall be under the jurisdiction of the Nuclear Industry
Standardization Institute.
Drafting organization of this standard. China Kehua Nuclear Power Technology
Research Institute Co., Ltd.
The main drafters of this standard. Zhou Zhou, He Wenkai, Xiong Guohua, Lu
Xiusheng.
Glossary of terms of instrumentation and control for
nuclear power plants
1 Scope
This standard specifies common terms and definitions related to
instrumentation and control (I&C) for nuclear power plants and their power
sources.
This standard applies to applications for nuclear power plant; other nuclear
facilities can be used with reference to it.
2 Basic concepts
2.1
Operational states
A collective name for two types of states, normal operation and anticipated
operational occurrences.
[HAF 102 (2004)]
2.2
Normal operation
The operation of nuclear power plants within specified operating limits and
conditions.
[HAF 102 (2004)]
2.3
Design basis
Information that determines the value, or range of parameters, of a structure,
system, component, or device that performs a specific function and is a
design boundary. This information can be either limits (derived from
generally accepted practices to achieve a functional goal), or some
requirements [derived from operational analysis of the assumed events
wherein the structures, systems, components shall meet their functional
objects and (or) operational experience].
[ANSI/ISA-67.06.01.2002, definition 3.5]
3 Instrumentation control systems and device
3.1 Instrument control system
3.1.1
Electrical system
Integration of electrical device that performs a certain function.
[RCCE.2005]
3.1.2
Instrumentation and control system (l&C system)
A system based on electrical, electronic, and/or programmable electronic
technology, that performs I&C functions as well as service and supervision
functions related to the operation of the system itself.
3.1.3
I&C systems important for safety
The instrumentation control system whose failure or malfunction may cause
the plant personnel or the public to experience excessive radiological
exposure to the instrumentation and control systems, as well as those
instrumentation control system to prevent unforeseen consequences of
anticipated operational occurrences, including safety systems and safety-
related instrumentation control systems.
4 Computer applications
4.1
Computer-based system
The I&C system whose functions are mainly dependent on or completely
implemented by microprocessors, programmable electronics or computers.
[NB/T 20026-2010, definition 3.10]
4.2
Software
Programs (ordered instruction sets), data, rules, and all related documents
related to the operation of computer-based I&C systems.
[NB/T 20054-2011, definition 3.30]
4.4
Application function
The function of an I&C system that performs tasks that are related to a
controlled process and not related to the functions of the system itself.
Note 1.The application function is usually a sub-function of the I&C function.
Note 2.Rewrite NB/T 20026-2010, definition 3.1.
4.5
Application software
The part of the I&C system software that implements application functions.
[NB/T 20026-2010, definition 3.2]
4.6
Operational system software
Software running on the target processor during operation, such as software
for. input and / or output drivers, services, interrupt management, scheduler,
communication driver, application-oriented libraries, online diagnostics,
redundancy, degradation management.
[NB/T 20054-2011, definition 3.22]
4.9
Software modification
A modification to an approved file (or set of files), such modification will result
in a change in executable code.
Note. In the early stages of software development (for example, faults found
in later stages of development) and in the stage where the software has been
used, software modification behavior may exist.
[NB/T 20054-2011, definition 3.32]
4.10
Pre-developed software (PDS)
Existing software available as a commercial or proprietary product for
computer-based systems.
4.11
Software failure
A system failure due to a design fault in a software component.
Note 1.Because the software consists only of the design without wear or
physical failure, all software failures are caused by design faults. Because
the triggering events that activate software faults occur randomly during
system operation, software failure also occurs randomly.
5 Man-machine interface
5.1
Alarms
When the meter's reading exceeds a setting value or exceeds the setting
range, an audible or visual signal is triggered on the alarm panel and other
displays, to provide field personnel with information about the device or
event.
[GB/T 4960.6-2008, definition 4.4.23]
5.5
Alarm prioritization
Alarm signal processing function or mechanism for alarms classified by
importance.
Note. Priority can be defined in advance or determined dynamically based
on plant operating conditions.
[NB/T 20027-2010, definition 3.12]
5.6
Alarm signal processing
The logic or mechanism for processing the alarm signal before identifying
the alarm and passing it to the alarm display processing unit for display to
the operator.
5.7
Alarm signal validation
The alarm signal processing function or mechanism, which is used to
determine whether the alarm signal correctly expresses the corresponding
process or system status.
6 Qualification
6.1 Device qualification
6.1.1
Baseline parameter
The initially determined technical data, which is used as a benchmark for
evaluating the acceptable performance of the qualified sample.
[IEEE 572.2006, definition 3.1]
6.1.6
Design life
The time it takes for a device to meet its required performance under a
specified set of operating conditions.
[IEEE 323.2003, definition 3.7]
6.1.7
Installed life
The period from installation to removal of a device or component, during
which the device or component can withstand the design operating
conditions.
Note. In the case of periodic replacement of certain components, the device
may have a 40a installed life, so the installation life of the components may
be less than 40a.
[GB/T 12727-2002, definition 3.10]
6.1.8
Qualified life
The time that a structure, system, or component has been tested, analyzed,
and / or operationally proven to be capable of operating within acceptance
criteria under specific operating conditions, while maintaining the execution
of the safety functions under design basis accident or seismic conditions.
[IEEE 323.2003, definition 3.16]
7 Test and maintenance
7.1 Test
7.1.1
Qualification testing
Testing to prove to a user that a software item or system meets its specified
requirements.
[GB/T 13629-2008, definition 3.36]
7.1.6
Overlap testing
In order to check the function of the entire channel, train or load group, tests
performed on different parts or subsystems of the channel, train or load
group. Testing of different parts or subsystems shall cover adjacent
components.
[GB/T 5204-2008, definition 3.5]
7.1.7
Functional test
A test to determine that a component or system performs its intended
function.
[GB/T 5204-2008, definition 3.7]
7.1.8
Performance test
Tests to evaluate device’s performance to meet expected requirements. Test
results can be used to support the determination of operability.
7.1.12
Conventional test
Conformance tests on each product under reference or standard test
conditions.
[GB/T 4960.6-2008, definition 3.4.4]
7.1.13
Routine test
After conventional tests, tests carried out on a sampling basis to verify the
suitability of the product for the amount of influence.
[GB/T 4960.6-2008, definition 3.4.5]
7.1.14
Preoperational test
After the system device is installed and integrated, the test which is used to
verify that the system and its components can function as designed before
the fuel is loaded.
7.2 Maintenance
7.2.1
Maintenance
Organized management and technical activities to keep structures, systems
and components in good working order, including both preventive
maintenance and corrective maintenance (or repair).
[IAEA Safety Glossary. 2007]
7.2.5
Bypass
A device that intentionally but temporarily disables a line or system, such as
shorting the contacts of a relay.
[GB/T 4960.6-2008, definition 4.1.26]
7.2.6
Maintenance bypass
The action or measure of manually bypassing one or more devices in a
system in order to replace, maintain, inspect, or calibrate the device.
Note. GB/T 4960.6-2008, revised definition 4.1.28.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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