Official Transcript of Proceedings NUCLEAR REGULATORY COMMISSION Title: Advisory Committee on Reactor Safeguards APR1400 Subcommittee Docket Number: N/A Location: Rockville, Maryland Date: November 29, 2016 Work Order No.: NRC-2766 Pages 1-267 NEAL R. GROSS AND CO., INC. Court Reporters and Transcribers 1323 Rhode Island Avenue, N.W. Washington, D.C. 20005 (202) 234-4433 1 1 2 3 4 DISCLAIMER 5 6 7 UNITED STATES NUCLEAR REGULATORY COMMISSION’S 8 ADVISORY COMMITTEE ON REACTOR SAFEGUARDS 9 10 11 The contents of this transcript of the 12 proceeding of the United States Nuclear Regulatory 13 Commission Advisory Committee on Reactor Safeguards, 14 as reported herein, is a record of the discussions 15 recorded at the meeting. 16 17 This transcript has not been reviewed, 18 corrected, and edited, and it may contain 19 inaccuracies. 20 21 22 23 NEAL R. GROSS COURT REPORTERS AND TRANSCRIBERS 1323 RHODE ISLAND AVE., N.W. (202) 234-4433 WASHINGTON, D.C. 20005-3701 www.nealrgross.com 1 UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION + + + + + ADVISORY COMMITTEE ON REACTOR SAFEGUARDS (ACRS) + + + + + APR1400 SUBCOMMITTEE + + + + + TUESDAY, NOVEMBER 29, 2016 + + + + + ROCKVILLE, MARYLAND + + + + + The Subcommittee met at the Nuclear Regulatory Commission, Two White Flint North, Room T2B1, 11545 Rockville Pike, at 1:01 p.m., Ronald G. Ballinger, Chairman, presiding. COMMITTEE MEMBERS: RONALD G. BALLINGER, Chairman MATTHEW W. SUNSERI, Co-Chair DENNIS C. BLEY, Member CHARLES H. BROWN, JR. Member NEAL R. GROSS COURT REPORTERS AND TRANSCRIBERS 1323 RHODE ISLAND AVE., N.W. (202) 234-4433 WASHINGTON, D.C. 20005-3701 (202) 234-4433 2 WALTER L. KIRCHNER, Member JOSE MARCH-LEUBA, Member DANA A. POWERS, Member HAROLD B. RAY , Member JOY REMPE, Member GORDON R. SKILLMAN, Member JOHN W. STETKAR, Member DESIGNATED FEDERAL OFFICIAL: CHRISTOPHER L. BROWN ALSO PRESENT: TONY AHN, KHNP SUN YOEB CHOI, KEPCO AE JORGE A. CINTRON, NRR JEFF CIOCCO, NRO ROBERT FITZPATRICK, NRR ADAKOU FOLI, NRR CHEWUNG HA, KHNP SEOKHWAN HUR, KEPCO-ENC HYEOK JEONG, KEPCO-ENC KYUNGWOONG KANG, KEPCO-ENC NADIM KHAN, NRR JUNGHO KIM, KHNP NEAL R. GROSS COURT REPORTERS AND TRANSCRIBERS 1323 RHODE ISLAND AVE., N.W. (202) 234-4433 WASHINGTON, D.C. 20005-3701 (202) 234-4433 3 SEUNGDAE KIM, KEPCO-ENC TAE HAN KIM, KEPCO-ENC STEVEN MANNON, AECOM TANIA MARTINEZ NAVEDO, NRR ROY MATHEW, NRR ANDREA MAYER, NRO MICHAEL MCCOPPIN, NRO DUC NGUYEN, NRR JIYONG OH, KHNP NGOLA OTTO, NRR SHEILA RAY, NRR MARY JANE ROSS-LEE, NRR FANTA SACKO, NRR SWAGATA SOM, NRR ANGELO STUBBS, NRO GEORGE WUNDER, NRO * Present via telephone NEAL R. GROSS COURT REPORTERS AND TRANSCRIBERS 1323 RHODE ISLAND AVE., N.W. (202) 234-4433 WASHINGTON, D.C. 20005-3701 (202) 234-4433 4 P-R-O-C-E-E-D-I-N-G-S 1:01 p.m. CHAIR BALLINGER: The meeting will now come to order. This is a meeting of the APR1400 subcommittee of the advisory committee on reactor safeguards. I'm Ron Ballinger, chairman of the APR1400 subcommittee, and to my left is Matt Sunseri, who's the co-chair. ACRS members in attendance today are Harold Ray, Gordon Skillman, Dana Powers, Matt Sunseri, Dennis Bley, John Stetkar, Jose March-Leuba, and Charles Brown, and our token female -- MEMBER BROWN: I didn't realize the spelling was so hard, and you got nailed, too. You're the token female, and I'm the token cartoon character here. CHAIR BALLINGER: Got to be able to laugh at yourself. The purpose of today's meeting is for the subcommittee to receive briefings from Korea Hydro and Nuclear Power Company, KHNP, regarding their design certification application, and the NRC staff, regarding a review of safety evaluations specific to NEAL R. GROSS COURT REPORTERS AND TRANSCRIBERS 1323 RHODE ISLAND AVE., N.W. (202) 234-4433 WASHINGTON, D.C. 20005-3701 (202) 234-4433 5 Chapter 8, electric power. This meeting is fourth in a series of meetings of our subcommittee to review the KHNP application and related NRC staff safety evaluation. The rules for participation in today's meeting were announced in the Federal Register on November 18, 2016. The meeting was -- November 18th -- 11/16. The meeting was announced as open, but portions can be closed, as necessary, to protect information proprietary to KHNP or its vendors, pursuant to 5 USC 552(b)(c)(4). No request for making a statement to the subcommittee has been received from the public. A transcript of the meeting is being kept and will be made available, as stated in the Federal Register notice. Therefore, we request that participants of this meeting use the microphones located throughout the meeting room when addressing the subcommittee. We seem to always forget, but there's a button on this little thing in front of you. It's not the little led that you have to push, it's down in the front. Where was I? Participants should first identify themselves and speak with sufficient clarity and volume so they can be readily heard. We have one NEAL R. GROSS COURT REPORTERS AND TRANSCRIBERS 1323 RHODE ISLAND AVE., N.W. (202) 234-4433 WASHINGTON, D.C. 20005-3701 (202) 234-4433 6 bridge line established for interested members of the public to listen in. The bridge number and the password were published in the agenda posted on the NRC website. To minimize disturbance, this public line will be kept in a listen mode only, and I might add that if you're out there and you're listening, please mute your phone or whatever you're using to listen, unless you're talking, because it causes cross-talk, which gets everybody messed up. The public will have an opportunity to make a statement or provide comments at a designated time towards the end of this meeting. We request that meeting attendees and participants silence their cell phones and other electronic devices. In addition, while we're going to see the slides for Chapter 8, KHNP has also provided a set of slides which are answers to individual members' questions from past chapters, so they're, again, individual members' questions. If we have time at the end, we can deal with that, but that's not our priority. It's Chapter 8. Don't worry about trying to finish early so we can do those. They'll be on the record. I invite the branch chief, Mike Coppin, I think. NEAL R. GROSS COURT REPORTERS AND TRANSCRIBERS 1323 RHODE ISLAND AVE., N.W. (202) 234-4433 WASHINGTON, D.C. 20005-3701 (202) 234-4433 7 MR. MCCOPPIN: Good afternoon. I'm Mike McCoppin. I'm the new Licensing Branch 2 branch chief for the division of new reactor licensing, pleasure to be here. I have my lead project manager, Jeff Ciocco, behind me. I'd like to introduce Mary Jane Ross-Lee, deputy director for the division of electrical engineering. MS. ROSS-LEE: Good afternoon. I am neither Jake nor Josh. CHAIR BALLINGER: I was going to say, I'm looking at the name tags, and I'm not seeing anything -- MS. ROSS-LEE: -- neither of which are actually NRO. As Mike said, I'm the deputy director, division of engineering at NRR. We have the COE for electrical, so we do both the operating and new reactor electrical reviews. In the staff's presentation today, they will be talking about the safety evaluation with open items for Chapter 8, which covers the electrical power systems. During their review, staff has engaged with the applicant on the issues, and we will discuss two topics that remain as open items for Chapter 8. Thank you. CHAIR BALLINGER: The floor is yours. NEAL R. GROSS COURT REPORTERS AND TRANSCRIBERS 1323 RHODE ISLAND AVE., N.W. (202) 234-4433 WASHINGTON, D.C. 20005-3701 (202) 234-4433 8 MR. SISK: Thank you, Dr. Ballinger. Good afternoon. I'm Robert Sisk, Westinghouse, representing KHNP APR1400 DCA. We look forward to the discussion today on Chapter 8 and electrical system. I do want to echo your comment. We do have a set of slides to -- our intent is to be responsive, where appropriate and practical, to subcommittee questions. As we go through these series of subcommittee meetings, I know that some of the answers asked build on or prepare for future, so we will be providing, routinely, as we go through, responses, where we can, with the meetings, to hopefully address the questions raised at the previous set of ACRS meetings. Again, that's as time available. The focus will be on Chapter 8. With that, I can turn it over to Mr. Kang for leading us through Chapter 8, or back to you, Dr. Ballinger. MR. KANG: Good morning, ladies and gentlemen. I'm Kyungwoong Kang, also known as Alex -- you can call me simply Alex -- from KEPCO-ENC, currently serving as technical lead of the APR1400 electric power system. Sitting on my left, Seungdae Kim from KEPCO-ENC, who is responsible for electric machines and circuit design of the APR1400 electrical NEAL R. GROSS COURT REPORTERS AND TRANSCRIBERS 1323 RHODE ISLAND AVE., N.W. (202) 234-4433 WASHINGTON, D.C. 20005-3701 (202) 234-4433 9 power system. Seated on my right, Steven Mannon, who is project manager of Chapter 8, who is supporting my presentation today. Both of us will share the part of presentation of APR1400 DCD Tier 2, Chapter 8, electric power system and delivery from now on. First, I will briefly introduce the contents of Chapter 8 and go over some of the section of Chapter 8. In the section summary, myself and Mr. Kim will share each responsible part, and then I'll speak about the open items continuing in Chapter 8 safety evaluation report and current status of Chapter 8 review, and then I'll conclude with a summary of Chapter 8.