ML19330A817
| ML19330A817 | |
| Person / Time | |
|---|---|
| Site: | Washington Public Power Supply System |
| Issue date: | 07/10/1980 |
| From: | Renberger D WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| GO-1-80-198, IEB-80-08, IEB-80-8, NUDOCS 8007290518 | |
| Download: ML19330A817 (2) | |
Text
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P, O Box 968 3000 Gro W AsHINGTON W AY RICHL AND. W ASHINGTON 99352 PHONE t S'09 9 94 6 16 t l July 10, 1980 G0-1-80-198 Docket Nos. 50-460 50-513 Mr. R. H. Engelken, Directer U. S. Nuclear Regulatory Commission Region V 1990 N. California Boulevard Suite 202 Walnut Creek Plaza Walnut Creek, California 94596
Dear f1r. Engelken:
Subject:
WNP-1/4 RESPONSE TO IE BULLETIN 80-08 The subject IE bulletin, entitled " Examination of Containment Liner Penetration Weld," has beeil reviewed for application to our Nuclear Project Numbers 1 and 4 (WNP-1/4).
Our response to the concern raised in Bulletin 80-08 is as follows:
1)
The designs for the primary piping containment penetration to outer sleeve welds are typical of the configurations (a), (c),
(d), ',e), and (f) shown in Figure NE 1120-1 Winter 1975 Addenda to the 1974 ASME B&PV code.
2) a)
The applicable ASME code for installing the pipe / flued head assembly is the 1977 cdition including the Summer 1977 Addenda.
b) 100% radiographic inspection will be specified for the subject welds with the acceptance criteria per ASME B&PV
- code, c)
The joint configuration for the attachment field weld of the process pipe / flued head assembly to the containment penetra-tion sleeve utilizes a full penetration J-groove butt weld with E-B inserts or using the open butt technique.
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Mh. R. H. Engelken M
Page Two i
The follow.ing materials and thickness ranges are being used.
o SA-333 Grade 6 normalized (.322-1.31 inches thick) o SA-155 Grade KC 60 (.75-1.50 inches thick) d)
The process pipe / flued head assemblies have not been installed.
The installation of the assemblies will start the third 3
quarter of 1980.
We have concluded that problems such as described in IE Bulletin 80-08 do not exist at WNP-l/4.
Very truly yours, i it i
D.L.RENBEpG Assistant Dir ctor, Technology DLR:GCS:bk cc:
N. S. Reynolds, B&V W.
Woods, NUS 4
Director, I&C-Washington, D. C.
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