Section XI Recent, Current, and Future
Activities
ASME-KEPIC Conference September 4-5, 2017 • Cheju, South Korea
Rick Swayne Reedy Engineering
Chair, BPV XI Standards Committee for Nuclear Inservice Inspection
2015 Edition
• Clarification of Term “Evaluation” – 2015 Edition – Analytical Evaluation
– 2017 Edition – Remaining uses of Evaluation • NDE Evaluation
• Engineering Evaluation
• Updated reference to RA-S to include 2009 Addenda and 2013 Addenda – Also added requirements for quality of PRA, based
on EPRI TR-1021467-A
• Updated reference to ASNT CP-189 from 1995 to 2006
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ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2015 Edition
• Added requirements for pressure testing of portions of the Reactor Vessel Head Flange Leak Detection piping within the Section XI boundaries – Incorporates Case N-805
• Provided an alternative to the extent of examination requirements for 10% of peripheral CRD housings, using 10% of the equivalent weld length – Incorporates Case N-825
• Added a new figure for Class 1 double-welded piping joints
• Added a prohibition on use of analytical evaluation to accept through-wall or through-weld leakage in Class 1 components
3
ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2015 Edition
• Added requirements for visual examination of portions of Class 2 and 3 open-ended systems that are periodically pressurized for performance of functional testing. Previously, open-ended piping was exempted.
• Added Appendix VIII, Supplement 2 for UT of CASS – Incorporates Case N-824
• Increased conservatism in method for using RTT0 to index the KIa curve to add a separate equation (RTKIa) to index the KIa curve as a function of temperature – Incorporates Case N-851
4
ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2017 Edition – ISI Examinations
• Reduces BWR Nozzle Exams (09-1169)
– Incorporates Case N-702 (BWRVIP)
• Reduces BWR Class 1 test pressure to 87% of rated reactor power (11-1410)
– Incorporates Case N-795
• Mandates PWR Steam Generator examination in accordance with Plant Technical Specification Requirements (10-129)
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ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2017 Edition – ISI Examinations
• Added provisions for examination of
Class 1 Core Makeup Tank (AP-1000)
(12-51)
• Permits surface examination (in lieu of
volumetric exam) of RPV Head-to-Flange
Weld after PSI/ISI UT with no defect (13-
1902)
– Incorporates Case N-747
6
ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2017 Edition – ISI Examinations
• Added requirements and acceptance
criteria for visual examination of
viscoelastic dampers (15-2541)
• Added requirements for examination for
moisture intrusion through portions of the
containment liner or vessel that are
outside of the Section XI boundary (14-
2187)
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ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2017 Edition – ISI Examinations
• Adds new requirements for qualification
of eddy current examination from the
inside surface of piping (13-107)
• Clarifies that the PSI examinations apply
only to those welds required to be
examined and that the examination
extent must include the extent required
for ISI (15-2839)
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ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2017 Edition – Pressure Testing
• Eliminates insulation removal during
pressure testing of non-borated portions
of BWR systems used for purpose of
boration during accident (11-808)
9
ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2017 Edition – Pressure Testing
• Revised pressure testing requirements (1) for statically-pressurized, passive safety injection systems, (2) to reflect vent, drain, and test piping pressure during the ten-year test, and (3) to address pressure in portions of the Class 1 boundary that are normally isolated and are tested with the attached Class 2 system (15-10)
– (Incorporates Cases N-731, N-798, N-800)
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ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2017 Edition – Pressure Testing
• Adds new requirements for performance
of pneumatic pressure testing of
components and systems, along with
requirements for qualification of
pneumatic testing personnel (09-835, 16-
44)
11
ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2017 Edition – R/R Activities
• Added new requirements for successive
inspections and additional examinations
of supports that are corrected by
repair/replacement activities (14-1323,
15-1321)
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ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2017 Edition – R/R Activities
• Added new requirements for installation
of HDPE piping by an Owner as a
Repair/Replacement activity (references
Section III, Mandatory Appendix XXVI)
(14-1567)
13
ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2017 Edition – R/R Activities
• Clarified requirements for defect removal by encapsulation and hot-tapping (addresses NRC request) (14-711)
• Clarifies that design-only activities other than rerating are not repair/replacement activities (15-1810)
• Added design requirements for specialty fittings (15-1647) (See new Cases N-878 (16-862) and N-880 (16-2408) for alternative procurement requirements for specialty fittings)
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ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
2017 Edition - Miscellaneous
• Eliminates limitation in IWB-3500 to YS of 50+ ksi (14-1594)
• Revised ambiguous wording, related to the concept of ‘evaluation’, (at the request of the USNRC) that led to compliance variations (14-1483, 15-205, 15-206, 15-207, 15-208, 16-2520)
• Remove, reduce, or isolate regulatory requirements (11-1100, 14-2012, 15-3) – To benefit of Non-U.S. Owners
15
ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
Recent Significant Actions
• Fatigue Crack Reference Curves for
Austenitic Steels in Water Environments
(11-4)
• Case N-711, Limited Examination
Coverage (15-1919)
• Case N-831, Substitution of UT for
Construction Code RT (12-2244)
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ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
Recent Significant Actions
• Case N-838, Alternative Flaw Tolerance
Analyses for Acceptance of Cast
Austenitic Stainless Steel (CASS)
Components (12-1900)
• Case N-847, Partial Excavation and
Weld Repair of Dissimilar Metal Welds
(10-1845, 14-2233)
17
ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
Recent Significant Actions
• Case N-853, PWR Piping Alloy 600
Branch Connection Repairs by Overlay
(15-360)
• Case N-858, Alternative Requirements
for Examination of Class 1 Nozzle-to-
Vessel Welds (15-2306)
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ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017
High-Priority Future Actions
• Section XI, Division 2, Reliability Integrity Management for New Reactor Designs and License Renewal beyond 60 Years (07-1328)
– JSME System-Based Code Case for LMRs (15-2743)
• Repair by Carbon Fiber Composites (12-1478)
• Examination of Buried Piping (11-822)
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ASME BPV XI CIWG – September 21, 2016
High-Priority Future Actions
• Consideration of Weld Residual Stresses
in Flaw Evaluation (13-1419)
• SCC Crack Growth Reference Curves for
Alloy 690 Materials
• Inservice Inspection of Metallic Portions
of Spent Fuel Storage and
Transportation Containments (16-364)
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ASME Section XI Significant Changes
ASME-KEPIC Conference, Cheju, South Korea – September 2017