ML17164B055
| ML17164B055 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 05/25/1999 |
| From: | Nerses V NRC (Affiliation Not Assigned) |
| To: | Byram R PENNSYLVANIA POWER & LIGHT CO. |
| References | |
| TAC-MA4293, TAC-MA4294, NUDOCS 9906020034 | |
| Download: ML17164B055 (7) | |
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Mr. Robert G. Byram Senior Vice President-Generation and Chief Nuclear Officer PP8L, Inc.
0 North Ninth Street Allentown, PA 18101 May
, 1999
SUBJECT:
SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONALINFORMATIONFOR TECHNICALSPECIFICATION CHANGE RELATED TO EMERGENCY DIESEL GENERATOR DAYTANKSTORAGE CAPACITY(TAC NOS. MA4293 AND MA4294)
Dear Mr. Byram:
By letter dated November 20, 1998, you requested an amendment to Operating License Nos.
NPF-14 and NPF-22 for Susquehanna Steam Electric Station (SSES), Units 1 and 2, respectively.
The amendment proposed changes to the Technical Specifications (TSs) of both units that would allow increases in the minimum volume of fuel oil to be stored in the day tanks for emergency diesel generators (EDGs).
The staff reviewed your submittal and has decided additional information (see Enclosure) was needed to complete the staff review.
In a recent conference call with Mr. M. Crowthers of your staff, we discussed the information needed and obtained an agreement that PP&L, Inc., would provide the additional information requested within 30 days from receipt of this letter.
P906020034 9'F0525 PDR ADQCK 05000387 P
PDR Docket Nos. 50-387 and 50-388 Sincerely, original signed by:
Victor Nerses, Sr. Project Manager, Section 1
Project Directorate I
Division of Licensing Project Management Office of Nuclear Reactor Regulation
Enclosure:
As stated ccw/encl: See next page DISTRIBUTION:
Docket File PUBLIC PDI-1 R/F S. Black M. O'rien V. Nerses C->Ocr ACRS A. Blough, RGN-I DOCUMENT NAME: G:LSUSQ>RAI4293Q.WPD To receive a copy of this docment, indicate in the box:
"C" = Copy without attachment/enclosure attachment/enclosure "M" ~ No co "E" = Copy with OFFICE PD I-1/PM PD I -2/LA PDI-1/SC IIAME VMerses:Icc MO'Brien SBajwa DATE 05/g /99 05/
/99 05/
/99 05/
/99 OFFICIALRECORD COPY
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON> D.C. 2055&0001 May 25, 1999 Mr. Robert G. Byram Senior Vice President-Generation and Chief Nuclear Officer PP&L, Inc.
2 North Ninth Street Allentown, PA 18101
SUBJECT:
SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONALINFORMATIONFOR TECHNICALSPECIFICATION CHANGE RELATEDTO EMERGENCY DIESEL GENERATOR DAYTANKSTORAGE CAPACITY(TAC NOS. MA4293 AND MA4294)
Dear Mr. Byram:
By letter dated November 20, 1998, you requested an amendment to Operating License Nos.
NPF-14 and NPF-22 for Susquehanna Steam Electric Station (SSES), Units 1 and 2, respectively.
The amendment proposed changes to the Technical Specifications (TSs) of both units that would allow increases in the minimum volume of fuel oil to be stored in the day tanks for emergency diesel generators (EDGs).
The staff reviewed your submittal and has decided additional information (see Enclosure) was needed to complete the staff review.
In a recent conference call with Mr. M. Crowthers of your staff, we discussed the information
'needed and obtained an agreement that PP8L, Inc., would provide the additional information requested within 30 days from receipt of this letter.
Sincerely, Docket Nos. 50-387 and 50-388
Enclosure:
As stated ccw/encl: See next page Victor Nerses, Sr. Project Manager, Section 1
Project Directorate I
Division of Licensing Project Management Office of Nuclear Reactor Regulation
0
Susquehanna Steam Electric Station, Unity 1 &2 Bryan A. Snapp, Esq.
Assoc. General Counsel PP&L, Inc.
2 North Ninth Street, GENTW3 Allentown, PA 18101-1179 Terry L. Harpster Manager-Nuclear Licensing PP&L, Inc.
2 North Ninth Street, GENA61 Allentown, PA 18101-1179 Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 35, NUCSA4 Berwick, PA 18603-0035 Director-Bureau of Radiation Protection Pennsylvania Department of Environmental Protection P.O. Box 8469 Harrisburg, PA 17105-8469 Richard W. Osborne Allegheny Electric Cooperative, Inc.
212 Locust Street P.O. Box 1266 Harrisburg, PA 17108-1266 Regional Administrator, Region I
U.S. Nuclear Regulatory Commission 475 Allendafe Road King of Prussia, PA 19406 Robert F. Saunders Vice President-Nuclear Site Operations Susquehanna Steam Electric Station Box 467, NUCSA4 Berwick, PA 18603-0035 Mr. Herbert D. Woodeshick Special Office of the President PP&L, Inc.
Rural Route 1, Box 1797 Berwick, PA 18603-0035 George T. Jones Vice President-Nuclear Engineering & Support PP&L, Inc.
2 North Ninth Street, GENA61 Allentown, PA 18101-1179 Dr. Judith Johnsrud National Energy Committee Sierra Club 433 Orlando Avenue State College, PA 16803 Board of Supervisors Salem Township P.O. Box 405 Berwick, PA 18603-0035
e RE VEST FOR ADDITIONALINFORMATIONFOR TECHNICALSPECIFICATION CHANGE RE VEST RELATEDTO EMERGENCY DIESEL GENERATOR EDG DAYTANKSTORAGE CAPACITY SUS UEHANNASTEAM ELECTRIC STATION UNITS 1 AND 2 1.
Each day tank for EDGs A, B, C and D has a capacity of 550-gallon. The day tank for EDG E has a capacity of 650-gallon.
In April 1991, PP&L, Inc., performed an engineering study (SEA-ME-332) in, response to the staff's concerns identified during an Emergency Diesel Safety Function Inspection (EDSFI) regarding day tank minimum volume requirement calculations.
Results of the engineering study indicated'hat in order to satisfy the requirements desc'ribed in ANSI N195-1976, a minimum of 461 gallons are required.to be maintained in each of the day tanks for EDGs A, B, C, and D and 528 gallons for EDG E. During a conference call on April 16, 1999, PP&L, Inc.,
staff stated that based on'the latest calculation a minimum of 499 (in stead of 461) gallons are requir'ed to be maintained in each of the day tanks for EDGs A, B, C, and D and 446.5 (instead of 528) gallons are required to be maintained in the day tank for EDG E. Provide the following information:
a.
Detailed calculations of the minimum usable fuel oil (in gallons) required to be stored in each of the day tanks.
Information should include all input parameters (e.g., EDG fuel oil consumption rates, level switch setpoints, etc.) and justifications for assumptions.
b.
EDG E has a higher rating than EDGs A, B, C, and D (5000 kw vs 4000 kw),
provide detailed discussion to show why (in the latest calculation) EDG E requires less fuel oil than EDGs A, B, C and D to satisfy the requirements described in ANSI N195-1976.
Also, discuss why more (499 gallons vs 461 gallons) fuel oil is required for EDGs A, B, C, and D, and less (446.5 gallons vs 528 gallons) fuel oil for EDG E when compared with the previous calculations.
2.
In page 1 of Attachment 1 and page 1 of Attachment 2 to PP&L, Inc., letter PLA-5007
- dated November 20, 1998,=PP&L,,lnc., stated that the proposed volumes (420gallons for EDGs A, B, C and D and 425 gallons for EDG E) are sufficient to operate the EDGs for a minimum of 55 minutes at 100% of the EDG continuous rated load, and are equivalent to the levels at which fuel oil is automatically replenished.
I In page 3 of Attachment 1 to PLA-5007, PP&L, Inc., stated that all EDG day tanks are automatically refilled when the day tank level drops to a level that willsupport 55.6 minutes of operation for EDGs A, B, C, and D and 62 minutes of operation for EDG E at continuous rated loads.
Please provide detail discussions to clarify the above inconsistences.
See page 4 in the Report Details of the NRC Special Inspection Report (50-387/98-08, 50-388/98-08) dated August 6, 1998.
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