ML18082A199
| ML18082A199 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 04/04/1980 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Librizzi F Public Service Enterprise Group |
| References | |
| NUDOCS 8004210032 | |
| Download: ML18082A199 (9) | |
Text
J APR O 4 1980 Mr. F. P. Librizzi, General Manager Electric Production Production Department Public Service Electric and Gas Company 00 Park Place, Room 7221 Newatk, New Jersey 07101
Dear Mr. Librizzi:
We have reviewed the information related to the Auxiliary Feedwater Systems at Sal em Unit No. 1 that you provided in your letter of November 1, 1979.
A summary of our evaluation of the items addressed in your letter and in the Staff's September 21, 1979 letter is enclosed.
The open items must be resolved in a manner accaptabl e to the Staff before we can complete our Safety Evaluation. Report.
For this reason we request that you infonn the Staff within 30 days of the date of this le:tter what further actions will be taken to meet the Staff's positions.
Enclosure:
Summary of Staff's Eva 1 uation cc: w/enclosure See next page DISTRIBUTION Docket File.50-272 NRC PDR Local PDR' TERA NSIC NRR Reading ORBl Reading D. Eisenhut W. Gammi 11 A. Schwencer W. Ross C. Parrish Attorney, OELD I_&E ( 3)
Sincerely, Ifs ~I /Pd A. Schwencer, Chief Operating Reactors Branch #1 Division of Operating Reactors
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NRC FORM 318 (9-76) NRCM 0240 i::Iu.s. GOVERNMENT PRINTING OFFICE: 1979-289-369
Docket No. 50-272 e
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 APR 0 4 1980 Mr. F. P. Librizzi, General Manager Electric Production Producti6n Department Public Service Electric and Gas Company 80 Park Place, Room 7221 Newark, New Jersey 07101
Dear Mr. Librizzi:
We have reviewed the information related to the Auxiliary Feedwater Systems at Salem Unit No. 1 that you provided in your letter of November 1, 1979.
A summary of our evaluation of the items addressed in your letter and in the Sta ff 1 s September 21, 1979 1 etter is enclosed.
The open items must be resolved in a manner acceptable to the Staff before we can complete our Safety Evaluation Report.
For this reason we request that you inform the Staff within 30 days of the date of this letter what further actions will be taken to meet the Staff's positions.
Enclosure:
Summary of Staff's Evaluation cc:
w/enclosure See next page Sincerely,
(]. ~'£LC:<£~£:,_
A. Schwencer, Chief Operating Reactors Branch #1 Division of Operating Reactors
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I Mr. F. P. Librizzi Publ1c Service Electric and Gas Company cc:
Mark J. Wetterhahn, Esquire Conner, Moore and Corber Suite 1050.
1747 Pennsylvania Avenue, NW Washington, o. c.
20006.
Richard Fryling, Jr., Esquire Assistant General So11citor APR 0 4 1980 Public Service Electric and Gas Company 80 Park Place Newark, New Jersey 07101 Gene Fisher, Bureau of Chief Bureau of Radiation Protection 380 Scotch Road Trenton, New Jersey 08628 Mr. Hank Midura, Manager Salem.Nuclear Generating Station Public Service Electric and Gas Company 80 Park Pl ace
- Newark, New Jersey 07l01 Mr. R. L. Mittl, General Manager Licensing and Environr.ent Public Service Electric and Gas Company 80 Park. Pl ace Newark, New Jersey 07101 Salem Free Library 112 West Broadway Salem, New Jersey 08079 Leif J. Norrholrn, Resident Inspector Salem Nuclear Generating Station U.
S~ Nuclear Regulatory Conmission Drawer I
- Hancocks Bridge, New Jersey 08038
. lrl 'J 4 7~80 s6RY OF STAFF Is EVALUATION e
OF SALEM 1 AUXILIARY F°EED\\.JATER SYSTEMS A.
Short Term Recorrrnendations
- section XJ12.3.l
( lthrough 5) 1.
Recommendation GS-2 The licensee 1 s response is acceptable.
- 2.
Recorrnnendation GS-3 We do not require further information from the licensee on this recom-mendation.
This is based on the following:
- 1) NRC has reviewed the issue of the potential feedwater flow instability (water hammer), and license amendment 22 has been issued to delete the license condition of AFW flow limitation from the Salem license, 2) the licensee will restore AFW system flow to the minimum flow required by FSAR.
- 3.
Recommendation GS-4 The licensee 1 s response is acceptable provided that the Operating In-struction III-10.3. 1 and the modified Emergency Instructions of Salem Station contain the necessary procedures to use all alternate water sources (e.g. Demiheralized Water Storage Tanks, Fire Protection and Domestic Water Storage Tank, and the Service Water System) in a pre-ferred sequence.
Verify that the above provisions are satisfied by
- operating Instruction III-10.3.l and the modified Emergency Instructions.
- 4.
Recommendation GS-6 The licensee's response is not acceptable.
We require the licensee to provide the following:
- 1) revise station operating procedures to require a second operator to independently verify that the AFWS valves are pro-perly aligned after the plant.operator performed his original AFWS flow path vertfications per plant surveillance procedures required after the system has been out of the service, and 2) verify that the Salem Station
.. will use the AFWS for plant startup with all AFWS valves in their normal alignment and supplying water from the primary water source (the Auxilir;ry Feed Storage Tank) to the steam generators.
If the startup lineup does not meet these provisions then the licensee should revise his Technical Specifications in accordance with our original recommendation.
- 5.
Recorrrnendation GS-7 The licensee's response to our recorrrnendation GS-7 is currently under review.
We will provide our evaluation at a later date.
- 8.
Additional Short Tenn RecoTmlendations Section x. 12.3.2 (1 through 4)
- 1.
The licensee's response to this short term recomnendation is acceptable.
For the long term, we require the licensee to provide the following:
l) demonstrate redundant auxiliary feedwater storage tank level indi-cations and redundant level alarms inside the control room.
- 2) The above level indications and alarms should be redundant all the way from the detectors at the auxiliary feedwater storage tank to the readouts and alarms inside the control room. - Power supplies for the level indi-cation and alarms should also be redundant.
Since the auxiliary feed-water storage tank is a seismic Category I water source, the entire water level indication and alarm system should in the long term (1/1/81) be designed to safety grade requirements including the use of Class lE circuitry and power supplies, and 3) reset the -low-low level alarm to allow at least 20 minutes for operator action, assuming that the largest capacity AFW pump is operating.
". ' 2.
The licensee 1 s response to this recommendation is acceptable provided the licensee provides test information and results in accordance with the revised Additional Short Tenn Recommendation No. 2 attached.
- 3.
The licensee's response to this recorrrnendation is currently under re-view.
We will provide our evaluation at a later date.
- 4.
The licensee's response is acceptable.
C.
Long Term Recommendation
- 1.
Reconmendation GL-2 The licensee's response does not provide sufficient infonnation to clearly demonstrate that the proposed modification will meet the requirement of this recommendation.
We require that the licensee submit a detailed des-cription with the aid of necessary drawings to demonstrate that the pro-posed system modifications will satisfy the requirements of this recommenda-tion.
- 2.
Recorrrnendation Gl-5 If the licensee can demonstrate in his response to our short tenn recommenda-tion No. 4 (GS-7) that the existing AFW automatic initiation system meets*
safety grade requirements, then this recorrrnendation wou}d not apply to~.iu Salem Station.
Otherwise the licensee should modify his design to meet safety grade requirements and submit the modification for review.
. ' D.
2asis for Auxiliary Feedwater Flow Requirements The licensee states that the Enclosure 2 "Basis for Auxiliary Feedwater Flow Requirements" has been referred to the Westinghouse Electric Corporation for evaluation, and that all efforts will be made to expedite these analyses.
We require that the licensee provide a commitment date to submit the results of the above analyses.
I'*
J.'
Revision tc Recor.::::~1~.=.:ion No. 2 of "Additional Short ierr:-.
Recommendations H Reg~".'"ding A*J:d11cry Feedwater Pump Endurance lest 711e licensee should perform an endurance t'est on all AF'i*.' syster:; pumps.
The test should continue for at least 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> after achieving the following test conditions:
- Pump/driver operating *at rated speed and
- Pump developing rated discharge pressure and flow or some higher pressure at a reduced flow but not exceeding the pump vendor's maximum permitted discharge pressure Vft1ue for a 48-hour test
- For turbine drivers, steam temperature should be as close to normal operating steam temperature as practicable but in no case should the temperatµre be less than 400°F.
Following the 48-hou; pump run. the pumps should be shut down and allowed to cool down until pump temperatures reduce to within 20°F of their values at the start of the 48-hour test and at least 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> have elapsed.
Following the cool cown, the pumps should be restarted and run for one hour.
Test acceptance criteria should include derronstrating that the pumps remain within desir 1irr.its with respect to be~:-i:l;/bearing oi1 tempera-tures and vibration and that ambient pump room conditions (temperature, humidity) do not exceed environmental qualification limits for safety-related equipment in the room.
The licensee should provide a surrrnary of the conditions and resu1ts of the of the test ~ethoc' (including flow schemat k dho/ZH:i} and how the test
2 was instrumented (i.e., where and how bearing temperatures were measured).
- 2) A discussion oi how the test conditions {pump flow, head, speed and steam temperature) compare to design operating conditions.
- 3) Plots of bearing/bearing oil temperature vs. time for each bF'1ring of each AFrr pump/driver demonstrating that temperature design limits were not exceeded.
- 4) A plot of pump room ambient temperature and humidity vs.
time demonstrating that the pump room ambient conditions do not exceed environmental qualification limits.for safety-related equipment in the room.
- 5)
A statement confirming that the pump vibration did not exceed allowable limits during tests.