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

2

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)

5

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)

7

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)

8

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)

10

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)

12

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)

14

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)

16

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)

18

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)

19

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)

20

ASME Section XI Significant Changes

ASME-KEPIC Conference, Cheju, South Korea – September 2017