iaea safety standards for electrical and i&c systems for...
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IAEA International Atomic Energy Agency
Winter Nuclear Power Engineering Committee Meeting Double Tree by Hilton Dallas, January 29, 2014
IAEA Safety Standards for Electrical and I&C Systems for Nuclear Power Plants
“UPDATE”
Alexander Duchac [email protected]
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IAEA
Recent development
• DS 430 Design of Electrical systems for NPPs
• DS 431 Design of I&C Systems for NPPs
• Technical Documents • Accident Monitoring • Design Provisions for SBO • HMI
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IAEA
DS 430 Current status
• October 2013 – 36th NUSSC meeting
• November 2013 – 4th NSGC meeting
• Editor’s comments
• April 2014 – CSS meeting
• Publication?
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IAEA
DS 430 MS Comments
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Rejected Accepted
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• 702 comments received • 18 MS countries • IEC, IEEE, ENIS, ENS
• 295 accepted • 407 rejected
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IAEA
DS 430 Comment Resolution
• Rejected • Comments that would “decrease” the level of technical guidance • Comments that try to “balance” technical guidance to comply with
existing plant design / configuration • Comments suggesting “compensatory measures” when specific
recommendation cannot be met • Comments suggesting specific values (e.g. overvoltage transients,
grid stability, etc.) • References to national rules & standards
• NSGC
• Request to add more security aspects
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IAEA
DS 430 Next step
• Publication office comments
• CSS meeting, April 2014
• Publication?
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IAEA
DS 431 (I&C) Current status
• February 2013 – CM on non-consensual items
• April 2013 – revise draft re-submitted to NUSSC
• June 2013 – NUSSC meeting, approved form MS comments
• December 2013 – Deadline for MS Comments
• Comment resolution in progress
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IAEA
DS 431 MS comments
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First impression Challenge to a fragile consensus New items to be included
Approach A small group established (FR, US, UK) If non consensus – decision on NUSSC
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IAEA
DS 431 next steps
• March 2014 – Comment Resolution
• May 2014 – NSGC meeting (security)
• July 2014 – NUSSC meeting
• October 2014 – CSS meeting
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IAEA
Safety Guide Supporting Docs
• Technical reports (TECDOCS) • Accident Monitoring - completed
• SBO
• HMI
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IAEA
SBO TECDOC
• Objective • “to provide technical guidance for the design provisions
to deal with SBO events at NPPs”
• Progress • 1st CS meeting in November
• New draft being prepared
• 2nd CS meeting ion March 2014
• Technical Meeting, June 17-20, 2014, IAEA
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IAEA
HMI TECDOC
• Objectives: • Complement guidance from DS 431
• Address HMI topic in greater details
• Provide technical guidance and good practice
• Joint work between NSNI & NE
• DPP to be prepared
• 1st CS meeting – 3rd quarter
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IAEA
Miscellaneous
• IAEA Workshop on Commissioning of Digital I&C
• August 26-30, 2013
• Haiyang site
• Westinghouse AP-1000
• 22 participants
• 3 lecturers (1 Westinghouse)
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IAEA
China Workshop AP 1000 I&C, 8/2013
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IAEA
China Workshop AP 1000 I&C, 8/2013
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IAEA
…and when completed
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IAEA
AP 1000 in China, Haiyang Site, 8/2013
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IAEA
AP 1000 in China, Haiyang Site, 8/2013
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IAEA
AP 1000 in China, Haiyang Site, 8/2013
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