Technical Working Group on Nuclear Power Plant
Instrumentation and Control (TWG-NPPIC)
The Technical Working Group on Nuclear Power Plant Instrumentation and Control (TWG–NPPIC) is a working group of Member States that operates within the framework of the IAEA Nuclear Energy Department. The role of the TWG-NPPIC is to assist the IAEA in identifying and initiating activities enabling organizations and personnel working with I&C systems to make the best use of the available and emerging technologies, and to meet the plant operational and safety needs in an economic manner. In this mission the TWG identifies and promotes activities that would assist I&C experts at nuclear utilities, licensing authorities, vendors and research organizations. Some examples of the functions of the TWG-NPPIC are:
To provide advice and guidance, and to marshal support in their countries for implementation of the Agency's programmatic activities in the area of design, implementation, licensing, operation maintenance, and modernization of NPP I&C systems
To provide a forum for information and knowledge sharing on national and international programmes development in the area of design, implementation, licensing, operation maintenance, and modernization of NPP I&C systems
To act as a link between the Agency’s activities in specific areas and national scientific communities, delivering information from and to national communities
To provide advice on preparatory actions in Member States and the Agency’s activities in planning and implementing coordinated research programmes, collaborative assessments and other activities as well as the review of the results on NPP I&C projects
To develop and/or review selected documents from the Nuclear Energy Series, assess existing gaps and advise on preparation of new ones, in the scope of their field of activity
To identify important topics for discussion at SAGNE and contribute to status reports, technical meetings and topical conferences in the field of NPP I&C systems and applications
To encourage participation of young professionals, as appropriate, in Agency activities
The TWG-NPPIC has a long history as one of the most active technical working groups of the IAEA. During its existence it has initiated, arranged, and supervised many symposia, specialist meetings and coordinated research projects. It has also been instrumental in the creation of various technical reports providing guidance for nuclear power plants, regulators and vendors within the I&C field. Through its network of members it has provided a stable planning platform for the activities as well as efficient channels of communication among I&C experts in the IAEA Member States. The presentation of national reports at the regular TWG meetings have provided an important basis for a discussion of needs for future IAEA activities within the I&C area. Recent achievements include various reports giving guidance for I&C modernizations at the nuclear power plants. The TWG has participated actively in discussions on subjects for IAEA technical meetings and in sessions of international conferences and symposia.
The scope of work covers all aspects of the life cycle of I&C systems and equipment from feasibility study through commissioning, testing, licensing, maintenance, and operation to ageing and replacement. The work thus not only covers technical details of the systems and equipment, but it also includes the processes by which they are to be developed, designed, licensed, qualified, installed, and maintained. Related areas, such as reactor physics, human-system interface technologies, and human factors engineering also fall into the scope of work of the TWG-NPPIC. Some examples of the topics in the work program are:
- Performance monitoring of instrumentation, control and protection systems
- Surveillance, diagnostics, and prognostic systems
- Testing dynamic response and calibration of instruments
- Methodologies for specification and design
- Electrical supplies
- Operator support systems
- Training simulators
- Human-machine interface including control room and emergency facilities
- Classification and qualification of I&C
- Maintenance and repair procedures
- Reliability of hardware and software components
- I&C aging and modernization
- Verification and validation of I&C systems
- Implementation, installation and commissioning procedures for I&C
- Instrumentation for normal and accident situations
- Signal processing techniques and systems
- Automation and manual control
- Integrated use of information technology and computers
- Cyber security of digital I&C and computer systems
Current Members of TWG-NPPIC (established in 1970)
Argentina, Canada, China, Czech Republic, Finland, France, Germany, Hungary, India, Japan, Republic of Korea, Norway, Pakistan, Russian Federation, Republic of South Africa, Sweden, Switzerland, Ukraine, United Kingdom, United States of America
International Organizations: IEC TC45, OECD/NEA, European Commission JRC
Past Observers: Australia, Austria, Belgium, Brazil, Italy, Mexico, Poland, Romania, Spain, The Netherlands
The 20th biennial regular meeting of the TWG-NPPCI was held in Vienna on 23-25 May 2005. The meeting report is available at Meeting CD Working Material 2005.
The 21st biennial regular meeting of the TWG-NPPIC was held in Vienna on 23-25 May 2007. The meeting report is available at Meeting CD Working Material 2007.
The 22nd biennial regular meeting of the TWG-NPPIC was held in Vienna on 20-22 May 2009. The meeting report is available at Meeting CD Working Material 2009.
The 23rd biennial regular meeting of the TWG-NPPIC was held in Vienna on 24-26 May 2011.
The Terms of Reference of the TWG-NPPIC was revised and issued in 2009: New Terms of Reference.
Please contact Instrumentation and Control - Contact Point if you have any questions