ML031990332
| ML031990332 | |
| Person / Time | |
|---|---|
| Site: | Kewaunee, Point Beach  |
| Issue date: | 07/03/2003 |
| From: | Nuclear Management Co |
| To: | NRC/RGN-III |
| References | |
| Download: ML031990332 (40) | |
Text
Nuclear Management Companys Reactor Pressure Vessel Head Replacement Project United States Nuclear July 2003 Regulatory Commission Region III 1
Agenda n Project Organization n Project Status n Fabrication n Quality Oversight n Installation n Summary 2
Purpose Communicate to NRC Region III the scope and schedule of the NMC Reactor Pressure Vessel Head Replacement Project.
3
Objectives n Identify required NRC regulatory activities n Establish periodic updates to the NRC 4
Project Organization 5
Organization
Background
n Multi-site capital project for NMC n Common fabrication organization n Site specific installation organization 6
Organization Project Organization John Paul Cowan CNO Gary Van Project Oversight Middlesworth VP Mike Wadley Review Panel Nuclear Mano Nazar Assessment Sr. VP Support Dave Jantosik Sr VP Programs Programs Mike Wadley Mano Nazar Dave Jantosik Director Nuclear Oversight Tom Coutu Fred Cayia Site Site VP Kewaunee VP Point Beach Hank Hoelscher Leo Ganser Fleet Project Manager Supplier Manager Assessment Tim Olson Ron Kuhn Project Chuck Tomes Steve Forsha Project Manager Project Manager Management Fleet Engineering Oversight Lead Kewaunee Point Beach Japan Lead RVHR RVHR RVHR RVHR Lewis McKenzie 7
Project Status 8
Project Status Contractors n Westinghouse is prime contractor providing new replacement reactor pressure vessel (RPV) heads n Mitsubishi Heavy Industries (MHI), Kobe Japan, subcontracted to design and fabricate RPV heads 9
Project Status Scope n Kewaunee - New RPV head and CRDM n No Head Assembly Upgrade Package (HAUP) n Point Beach - New RPV heads and CRDMs n HAUP n Control Rod Drive Mechanism (CRDM) coil stacks n Thermocouple cables n Rod Position Indicator (RPI) and CRDM cables 10
Project Status Scope (continued) n New heads and CRDMs will be made and fabricated in Japan under Mitsubishi Heavy Industries quality program n HAUP will be fabricated in Pittsburgh under Westinghouses quality program 11
Project Status Details of RPV Head Scope n Single Piece Forging n Electro-Slag Welded Strip cladding n Alloy 600 Prohibited n Use alloy 690 tubing versus alloy 600 tubing n Use alloy 690 weld material versus alloy 600 weld material n Use narrow J-groove weld bevel n One piece L-106A CRDMs (one butt weld on latch mechanism) n Eliminate vent on each CRDM n Eliminate all seal welds n Eliminate spare and part length penetrations n Vent and Reactor Vessel Level Indication System Taps n Core Exit Thermocouple Nozzle Assembly (CETNA) 12
Project Status Details of Scope (continued)
Plant specific differences n Kewaunee has eliminated plutonium recycle ports and part length penetrations n Kewaunee will have four capped spare penetrations on the new RPV head 13
Project Status Project Schedule - Kewaunee n Reactor Vessel Head Forging Complete n Fabrication CRDM Head Adapter & Housing 12/13/03 n Shrink Fitting of the head penetration tubing 12/15/03 n Hydro Test 05/01/04 n Site Delivery 09/01/04 n Outage 09/25/04 14
Project Status Project Schedule - Point Beach Unit 2 Unit 1 n Reactor Vessel Forging 8/23/03 1/15/04 n Fabrication CRDM Head Adapter & Housing 4/10/04 9/25/04 n Shrink Fitting of the head penetration tubing 4/15/04 9/30/04 n Hydro Test 9/15/04 2/20/05 n Site Delivery 2/01/05 7/01/05 n Outage 4/02/05 10/08/05 15
Fabrication 16
Fabrication Overall Responsibilities RPV Head and CRDMs n Design Specification - Westinghouse n Material Procurement - Mitsubishi Heavy Industries n Design Review - Westinghouse n Technical and Quality Oversight - NMC 17
Fabrication Overall Responsibilities (continued)
RPV Head and CRDMs n Mitsubishi Heavy Industries n Fabrication n Certified Design Report n Stamping n Preservice Inspection n Packaging and Shipping n Installation - Westinghouse 18
Fabrication Overall Responsibilities (continued)
Head Assembly Upgrade Package n Fabrication-Westinghouse n Design-Westinghouse n Installation-Westinghouse n Technical and Quality Oversight - NMC 19
Fabrication Design Responsibilities n NMC - Scope and Technical Specification n Westinghouse (Original Equipment Manufacturer) - Design Specification n Mitsubishi Heavy Industries n Certified Design Report n ASME NPT Stamp 20
Fabrication Fabrication Status Kewaunee n Long Lead Time Items Delivered
Ø Forging - Japan Steel Works
Ø CRDM Alloy 690 Penetrations - Sumitomo n Design Specifications Issued n CRDM Stainless Steel Pressure Boundary - Hitachi n Fabrication in progress
Ø Cladding
Ø Latch housing & rod travel housing machining
Ø Latch arm machining 21
Fabrication Fabrication Status Point Beach - Unit 2 n Long Lead Time Items Ordered
Ø Forging - Japan Steel Works
Ø CRDM Alloy 690 Penetrations - Sumitomo n Design Specifications Issued 22
Fabrication Sub Vendor Fabrication Locations n Mitsubishi Heavy Industries n Futami Plant - Reactor Vessel Head n Kobe Shipyard & Machinery Works - CRDMs 23
Sub Vendor Fabrication Locations (continued) n Sub Vendor Facilities n Japan Steel Works - Forging n Sumitomo - CRDM Alloy 690 Penetrations tubing n Hitachi - Stainless Steel CRDM Pressure Boundary Components n Kanaski Steel - Lifting Lugs n Kobe Steel LTD. - Weld Material n Nippon Welding Rod - Alloy 690 Weld Material 24
Fabrication Japan Steel Works NIPPON Kawasaki Sumitomo Hitachi MHI 25
Fabrication Licensing Requirements n Planned to be done pursuant to 10CFR 50.59 n Additional NRC reviews or prior approvals not expected 26
Fabrication Applicable ASME Codes and Standards ASME Boiler and Pressure Vessel Code n Section II,Section III, Section V,Section XI ASME 1998 Edition thru 2000 Addendum n Section IX, Latest Edition Code cases n ASME Code Case 2142-1, Ni-Cr-Fe (UNS N06052), November 25, 1992 n ASME Code Case 2143-1, Ni-Cr-Fe (UNS W86152), November 25, 1992 27
Fabrication Applicable ASME Codes and Standards (continued) n NRC Issued Flaw Evaluation Criteria for Examination of CRDM Tubing and J-groove Welds n US NRC Regulatory Guide 1.28, Rev 3 - Quality Assurance Program Requirements n US NRC Regulatory Guide 1.31, Rev 3 - Control of Ferrite Content in Stainless Steel Metal n US NRC Regulatory Guide 1.43, May 1973 - Control of Stainless Steel Weld Cladding of Low Alloy Steel and Components n US NRC Regulatory Guide 1.50, May 1973 - Control of Preheat Temperature for Welding of Low Alloy Steel 28
Fabrication Non Destructive Testing n Section XI, ASME 1998 Edition thru 2000 Addendum n Section III, ASME 1998 Edition thru 2000 Addendum n Additional NDE Requirements Imposed By NMC
Ø NRC Developed Acceptance Criteria Used for Preservice Examination of Alloy 690 Tubing and J-groove Welds
Ø Capability of Examining the Alloy 690 Tubing and J-groove Welds To Be Verified With NDE & Repair Mockups 29
Quality Oversight 30
Quality Oversight n NMC Project Oversight Plan n Establishes the program oversight and responsibilities for the project
- Supplier qualification
- Stop Work Authority
- Inspections
- Nonconformances
- Personnel Qualification
- Reporting 31
Quality Oversight Oversight Plan n Establishes an Oversight Review Panel n Purpose to provide an integrated review of the project oversight n Panel consists of:
- Director of Nuclear Oversight
- Senior Vice President of Support Programs
- One additional Vice President n Panel meets biannually or as conditions require 32
Quality Oversight Resident Oversight Personnel n Resident Oversight Personnel for NMC and Westinghouse n Monitor work activities n Verify critical attributes at witness and hold points n Follow-up on corrective actions n Resident inspector is bilingual Japanese national 33
Quality Oversight Communication and Issue Resolution Form (CIRF) n Project Specific Process n Documents and communicates issues found by NMC, Westinghouse and MHI n Reviewed each day in Kobe by NMC, Westinghouse and MHI Project Managers for cause determination, corrective action and resolution.
n Quality issues tracked via MHI/W QA Programs.
Other issues tracked via project letter, as needed.
34
Installation 35
Installation n Westinghouse/ Mitsubishi Heavy Industries to arrange transportation of the new heads n Replacement RPV heads fit through equipment hatches at Point Beach and Kewaunee - No Integrated Leak Rate Testing required n Both sites will require interference removal 36
Installation Overview (continued) n Westinghouse to supervise old RPV head removal and new RPV head installation n NMC provide tools, craft labor and oversight n Head removal and reinstallation performed per standard outage requirements 37
Installation Overview (continued) n Westinghouse provides the Department of Transportation (DOT) shipping container for old RPV heads and CRDMs n NMC will select a disposal contractor for old RPV heads 38
Summary 39
Summary n Technical/quality oversight is in place n Fabrication of RPV heads is underway n Installation planning is just starting 40