ML18139A470
| ML18139A470 | |
| Person / Time | |
|---|---|
| Site: | Surry, North Anna  |
| Issue date: | 07/07/1980 |
| From: | Sylvia B VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 341-040780, IEB-80-08, IEB-80-8, NUDOCS 8007250545 | |
| Download: ML18139A470 (7) | |
Text
e VIRGINIA ELECTRIC AN,D :fB~#~-:.;9~,;ir~~y
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RICHMOND,VIBGINIA 23261 Mr. James P. O'Reilly
'l,"'.. I July 7,. ;.;.L.1:18 o I Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
P I
- 3 0 Serial Number 341/040780 NO/HSM/sjl Docket Nos. 50-280 50-281
SUBJECT:
I.E. BULLETIN 80-08 EXAMINATION OF CONTAINMENT LINER PENETRATION WELDS This is in response to I. E. Bulletin No. 80-08, "Examination of Containment Liner Penetration Welds".
Our response for Surry Power Station Unit Nos. 1 and 2 and North Anna Power Station Unit Nos. 1 and 2 are attached.
HSM/sjl:Ll Attachment Very truly yours,
~
B. R. Sylvia Manager - Nuclear Operations and Maintenance cc: Director, Office of Inspection and Enforcement Division of Reactor Operations Inspection Washington, D. C.
20555
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NORTH ANNA POWER STATION UNIT NOS. 1 A."\\'D 2 RESPONSE TO I.E. BULLETIN 80-08 EXAMINATION OF CONTAINMENT LINER PENETRATION WELDS
- 1.
Determine if your facility contains the flued head design for penetration connections, or other designs with containment boundary butt weld(s) between the penetration sleeve and process piping as illustrated in Figure NE *1120-1, Winter 1975 Addenda to the 1974 and later editions of the AS.HE B&PV Code.
Response
A review of the records pertaining to the construction of the reactor contain-ment liners for North Anna Units 1 and 2 indicated that penetration assemblies of the flued head forging design were used for the penetrations listed in tables 1 and 2 (attached).
The design used is similar to that illustrated in figure NE 1120-1 (d), Winter 1975 Addenda to the 1974 edition of the ASME
- Boiler and Pressure Vessel Code Section III.
~~
NORTH ANNA POWER STATION TABLE 2 PENETRATION SLEEVE FLUED HEAD TYPE REPAIRS REQUIRED UNIT 2 NO.
SIZE SCH MAT'L MAT'L NDE YES/NO 28 8
~
11 wall A312 TP304 A350 GRLF 1 LP NO 39 12
~
11 wall A312 TP30lf A350 GRLF 1 LP NO 40 12
~
11 wall A312 TP304 A350 GRLF 1 LP NO 41 12
~
11 wall A312 TP304 A350.GRLF 1 LP NO 51 8
~
11 wall A312 TP304 A350- GRLF 1 LP NO 52 8
~
11 wall A312 TP304 A350 GRLF 1 LP NO 55 8
80 A333 GR3 A350 GRLF 1 MP NO 56 8
80 A333 GR3 A350 GRLF 1 MP NO 57 8
80 A333 GR3..
A350 GRLF 1 MP NO 73 45 3/4 11 wall A240 TP304 A350 GRLF 1 LP NO 74 45 3/4 11 wall A240 TP304 A350 GRLF 1 LP NO 75 45 3/4 11 wall A240 TP304 A350 GRLF 1 LP NO 76 28
~" wall A240 TP304 A350 GRLF 1 LP NO 77 28
~
11 wall A240 TP304 A350 GRLF 1 LP NO 78 28
~
11 wall A240 TP304 A350 CRLF l LP NO 97 8
80 A333 GR3 A350 GRLF 1 MP NO 98 8
80 A333 GR3 A350 GRLF 1 MP NO 105 8
80 A333 GRJ A350 GRLF l MP NO 111 8
80 A333 GR3 A350 GRLF 1 MP NO 117 8
80 A333 GR3 A350 GRLF 1 MP NO
e e
NORTH ANNA POWER STATION UNIT NOS. 1 AND 2 RESPONSE TO IE BULLETIN 80-08 EXAMINATION OF CONTAINMENT LINER PENETRATION WELDS
- 3.
For those facilities committed during construction to perform volumetric examination of such penetrations through SAR commitments which have not performed radiography, justify not performing radiography or submit plans and schedules for performing radiographic examinations.
Response
There are no commitments in the*North Anna FSAR requiring the performance of volumetric ex.minations of the flued head forging to penetration sleeve welds.
SURRY POWER STATION TABLE l PENETRATION SLEEVE FLUED HEAD TYPE REPAIRS REQUIRED UNIT 1 NO.
SIZE SCH MAT'L MAT'L NDE YES/NO 28 8
80 A333 GR3 A350 GRLF 2 LP NO 39 12 XSTR A333 GR3 A350 GRLF 2 LP NO 40 12 XSTR A333 GR3 A350 GRLF 2 LP NO 41 12 XSTR A333 GR3 A350 GRLF 2 LP NO 51 8
80 A333 GR3 A350 GRLF2 LP NO e 52 8
80 A333 GR3 A350 GRLF 2 LP NO 55 8
80 A333 GR3 A350 GRLF 2 LP NO 56 8
80 A333 GR3 A350 GRLF 2 LP NO 57 8
80 A333 GR3 A350 GRLF 2 LP NO 73 42 40 A333 GR3 A350 GRLF 2 LP NO 74 42 40 A333 GR3 A350 GRLF 2 LP NO 75 42 40 A333 GR3 A350 GRLF 2 LP NO 76 26 20 A333 GR3 A350 GRLF 2 LP NO 77 26 20 A333 GR3 A350 GRLF 2 LP NO 78 26 20 A333 GR3 A350 GRLF 2 LP NO 97 8
80 A333 GR3 A350 GRLF 2 LP NO 98 8
80 A333 GR3 A350 GRLF 2 LP NO 105 8
80 A333 GR3 A350 GRLF 2 LP NO 111 8
80 A333 GR3 A350 GRLF 2 LP NO 117 8
80 A333 GR3 A350 GRLF 2 LP NO
SURRY POWER STATION UNIT NOS. 1 AND 2 RESPONSE TO IE BULLETIN 80-08 EXAMINATION OF CONTAINMENT LINER PENETRATION WELDS
- 2.
If an affirmative answer is reached for Item 1, determine the following:
- a.
Applicability of the ASME Code including year and addenda and/or Regulatory Guide 1.19,
- b.
Type of nondestructive examinations performed during construction,
- c.
Type of weld joint (including pipe material and size) and whether or not backing bars were used,
- d.
Results of construction nondestructive examinations, i.e., if repairs were required, this should be identified including extent of repairs and description of defects encountered during repair, if known.
Response
- a.
The Surry Final Safety Analysis Report, section 15.5.1.8, states the following:
"The containment liner is not a coded pressure vessel, tm:erefore; there was no section of the ASME Boiler and Pressure Vessel Co&.e for Nuclear Vessels directly applicable to its design and construction. However, to insure that good engineering practices were followed, certain portions of Section III of the Code were reviewed for suggested guidance as to design and constr.uction practices that should be incorporated in the liner specifications.
Those sections reviewed for information were:
N-511 N-512 N-513 N-514 N-515 N-518 N-519 N-521 N-522 N-523 N-524 N-526 N-527 N-528 N-531 N-541 N-611 N-612 N-613 Certification of Materials by Vessel Manufacturer Material Identification Examination During Fabrication Repair of Material by Welding Forming Shell Sections and Heads Attachments Cutting Plates and Other Products Welding Processes Welding Qualifications and Weld Records Precautions for Welding Assembly Finished Longitudinal and Circumferential Joints Miscellaneous Welding Requirements Repair of Weld Defects Preheating Modification of Section IX-Welding Procedure Qualification Requirements Inspection, General Qualification of Inspectors, Engineering Specialists, and Inspection Agencies Access for Inspector
I!:
SURRY POWER STATION UNIT NOS. 1 AND 2 RESPONSE TO IE BULLETIN 80-08 EXAMINATION OF CONTAINMENT LINER PENETRATION WELDS
- 3.
For those facilities committed during construction to perform volumetric examination of such penetrations through SAR commitments which have not performed radiography, justify not performing radiography or submit plans and schedules for performing radiographic examinations.
There are no commitments in the Surry FSAR requiring the performance of volumetric examinations of the flued head forging to penetration sleeve weld.