ML20040F701
| ML20040F701 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 01/19/1982 |
| From: | Miraglia F Office of Nuclear Reactor Regulation |
| To: | Maurin L LOUISIANA POWER & LIGHT CO. |
| References | |
| NUDOCS 8202100150 | |
| Download: ML20040F701 (3) | |
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DISTRIBUTION:
JAN 191982 DocketFile50-g2 N
LPDR 0 ELD IE (3)
Docket No.: 50-382 C
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LB#3 Files Mr. L. V. Maurin FMiraglia
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Vice President - Nuclear Operations SBaack
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0 Louisiana Power & Light Compa'ny DEisenhut
.9 4, p8 142 Delaronde Street SHanuer f
New Orleans, Louisiana 70174 RVollmer Nd M
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Dear Mr. Maurin:
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Subject:
Request for Additio'nal Information - Waterford Steam Q fo Station, Unit No. 3 We have determined that certain additional infonnation is required in order to permit us to complete our review of your spplication for an operating license for Waterford Steam Electric Station, Unit No. 3.
The enclosed round two requests for additional information were prepared by the Environmental Qualification Branch and are numbered 270.7 through 270.11.
Please advise us of the date 'on which you expect to provide responses to the enclosed request.
If you require any clarification, please contact the project manager, Suzanne Black on (301) 492-7119.
Sincerely,
'Criginal signed by 7tradt J. Miraglia Frank J. Miraglia, Chief Licensing Branch No. 3 Division of Licensing
Enclosure:
As stated cc: See next page.
I 8202100150 820119 PDR ADOCK 05000392 A
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f Mr. L. V. Maurin WATERFORD Vice President - Nuclear Operations l
Louisiana Poker & Light Company 142 Delaronde Street New Orleans, Louisiana 70174 i
W. Malcolm Stevenson, Esq.
Monroe & Lemann 1424 Whitney Building New Orleans, Louisiana 70130 Mr. E. Blake Shaw, Pittman, Potts and Trowbridge 1800 M Street, H. W.
Washington, D.C.
20036 Mr. D. L. Aswell Vice President, Power Production Louisiana Power & Light Company 142 Delaronde Street New Orleans, Louisiana 70174 Mr. F. J. Drummond Project Manager - t> clear Louisiana Power & Light Company 142 Delaronde Street New Orleans, Louisiana 70174 Mr. D. B. Lester Production Engineer Louisiana Power & Light Company 142 Delaronde Street New Orleans, Louisiana 70174 Lyman L. Jones, Jr., Esq.
Gillespie & Jones P. O. Box 9216 Metairie, Louisiana 70005 Luke Fontana, Esq.
824 Esplanade Ave.
New Orleans, Louisiana 70116 Stephen M. Irving, Esq.
535 North 6th Street Baton Rouge, Louisiana 70802 Resident Inspector /Waterford NPS P. O. Box 822 Killona, Louisiana 70066 Dr. Krishna R. Iyengar Middle South Services, Inc.
P. O. Box 61000 New Orleans, Louisiana 70161
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' Request for Additional Information Waterford 3 Containment Purge and Vent Valve Operability 270.7 Non-uniform approach flow resulting from pipe elbows immediately upstream of a butterfly valve has been shown to have a signifi-cant effect on torques.
For this reason concern has been raised for the non-uniform approach flow created by a partially open butterfly valve upstream of a second butterfly valve.
Show how this ef fect has been considered and accounted for.
270.0 CSB Branch Technical Position 6-4 requires a 5 second closure time for these valves.
Describe how these valves are verified to close within the required 5 seconds.
Since closure time may increase under pressure loads, increased closure time resulting from loads should be considered if closure time tests are performed in the unloaded condition. As closure time may increase with time and use, periodic inspection should be performed to verify closure time is still within the 5 second required period.
Describe the Tech. Spec requirements for periodic testing of closure time of these valves and show how these requirements satisfy the concerns a bove.
270.9 The seismic report submitted as part of the qualification package only described a test program on the Bettis model T420-SRl-M3 actuator. Testing was performed using a fixture to represent valve body mounting. No loading other than seismic appears to have been imposed during the tests.
The acceptance criteria was to verify that the torque output of the actuator will not vary under seismic loads.
No seismic qualification of the valve, solenoid, or limit switch (indicated to be qualified in a separate report) was submitted.
Show how seismic loads were considered with other dynamic loads -to verify that no part tf the valve assembly (valve, operator, and appertenances) or associated equipment is overstressed during and following an accident condition.
270.10 Where operator units are equipped with handwheels some provision must be made to assure these valves are not left in the handwheel mode following some maintenance, testi etc. operation.
Describe what steps have been taken to assure valves equipped with handwheels are not left in this mode. Some valve designs may provide for automatic re-engagement of the operator.
270.11 Describe preventive maintenance, inservice inspection, and replacement part programs to be performed on the valves, operators, solenoid valves, and associated equipment.
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