ML20151F760
| ML20151F760 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 07/18/1988 |
| From: | Hairston W GEORGIA POWER CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| SL-4860, NUDOCS 8807270252 | |
| Download: ML20151F760 (11) | |
Text
Georgta Power Company 333 P.rdnont Avenue Atlanta. Georgia 30308 Telephone 404 526-6526 t/;6hng Addrew Post Once Box 4545 At'ar.ta, Georg a 30302 b
Georgia Power Nuclear Operations Department 7" OU'W "'"
- b'Y*
SL-4860 0993m X7GJ17-V820 July 18,1988 U. S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.C.
20555 PLANT V0GTLE - UNITS 1, 2 NRC 00CKETS 50-424, 50-425 OPERATING LICENSE NPF-68, CONSTRUCTION PERMIT CPPR-109 CORRIGENDA FOR "DUAL UNIT ~ LICENSES" SUBMITTAL Gentlemen:
In our letter SL-4696 dated May 19, 1988, Georgia Power Company provided certain information requested by the NRC regarding physical differences between Units 1 and 2 of Plant Yogtle.
This infonnation was submitted for your use in evaluation of the feasibility of dual unit licenses for Plant Yogtle operators.
Subsequent to that submittal, errors in transcription from the source document and the need for some clarifications were discovered.
Provided in the enclosure to this letter is a corrected version of "Enclosure 2" to SL-4696.
Please replace the original "Enclosure 2" with the one provided herewith.
We regret any inconvenience these errors may have caused.
Sincerely, io y.) lLsam W. G. Hairston, III Senior Vice President, Nuclear Operations WEB /1m
Enclosure:
Revision 1 to "Enclosure 2" of SL-4696 c:
(see next page)
(
i)\\ ~
8807270252 880718 PDR ADOCK 05000424 P
PNU i
l Georgia Power b U. S. Nuclear Regulatory Commission July 18,1988 Page Two c: Georgia Power Company Mr. P. D. Rice Mr. G. Bockhold, Jr.
Mr. P. D. Rushton Mr. J. J. Badgett GO-NORMS U. S Nuclear Regulatory Commission Dr. J. N. Grace, Regional Administrator Mr. J. B. Hopkins, Licensing Project Manager, NRR (2 copies)
Mr. J. F. Rogge, Senior Resident Inspector-0perations, Yogtle Mr. J. F. Monroe, Chief-Operator and Licensing,Section I, Region II 0993m 700?TS
IGeorgia Power A ENCLOSURE PLANT V0GTLE - UNITS 1, 2 NRC DOCKETS 50-424, 50-425 OPERATING LICENSE NPF-68, CONSTRUCTION PERMIT CPPR-109 CORRIGENDA'FOR "DUAL UNIT-LICENSES" SUBMITTAL Revision 1 to "ENCLOSURE 2" to SL-4696 SL-4860 E-1 7-18-88 0993m
' NX)??S
Georgia Power 1 ENCLOSURE 2 PLAN ~ V0GTLE - UNITS 1, 2 NRC 00CKETS 50-424, 50-425 OPERATING LICENSE NPF-68, CONSTRUCTION PERMIT CPPR-109 FACILITY DESIGN AND SYSTEMS RELEVANT TO CONTROL ROOM PERSONNEL AND OPERATIONAL CHARACTERISTICS 1.
Boron Injection Tank (BIT) and the BIT Recirc System
Reference:
1X4DB119 2X4DB119 Description of Change:
The BIT and BIT recirc system were not piped up on Unit 2 while Unit 1 has the components piped up but disabled in place.
This is not an operating difference but a physical difference.
The unit 2 high head injection valves will use the same nomenclature (BIT Outlet Valves) as unit 1.
2.
Waste Evaporator
Reference:
DCN-6164 Description of Change:
The Unit 2 Waste Evaporator Installation will not be completed.
3.
Waste Monitor Tank Capacity
Reference:
DCN-6164 Description of Change:
Unit 2 will have 2 additional 20,000 gallon tanks designated as common tanks.
4.
NSCW Tower Fans
Reference:
DCR 87-V1E0261 2X3D-BD-K03A, B, C, D, E, F, G, and H 2X3D-BA-D03F 2X3D-AA-F39A Description of Change:
Uni t 2 will have a time delay on the vibration alarm for the NSCW Tower Fans.
5.
NSCW Aux Containment Cooler Isolation Valves
Reference:
2X4DB135-1,135-2 2X3D-BD-K04L and M Description of Change:
Unit 2 valves are interlocked so that the outlet valves mast be opened first.
When opening the outlet valves they stroke 3 seconds, wait for 60 seconds, and then finish stroking open.
This allows the header to backfill.
0940m E2-1 07/18/88 SL-4696 Rev. 1 rwns
Geo;gia Power d ENCLOSURE 2 (Continued)
FACILITY PESIGN AND SYSTEMS RELEVANT TO CONTROL R006 PERSONNEL AND~0PERATIONAL-CHARACTERISTICS 6.
NSCW High Point Vacuum Breakers
Reference:
1X4DB134 and 1X4DB135 2X4DB134 and ?X4DB135 Description of Change:
Unit 2 has added Vacuum breakers to the High points in the NSCW Systems.
Unit 1 has no plans to incorporate the change.
7.
Main Feed Pump Seal Injection
Reference:
2X4DB168-2 Description of Change:
Unit 2 MFP seal injection filters have filter D/P indication that unit 1 doesn't.
8.
Diesel Generator System
Reference:
1X4DB170-1 and 2 2X4DB170-1 and 2 2X30-BH-G02B Description of Change:
The Unit 2 "B" train DG fuel oil transfer pumps have local / remote transfer switches (2HS-9045A and 2HS-9047A) to tranfer control of the pumps out of the control room in case of a control room fire.
The switches are located on the front of the breaker cubicles. This may ha.e an impact on A0? 18038.
Reference:
DCR-87 VIE 0206 2X5DT0029 and 10 Description of Change:
THe #: el oil storage tank low level alarm setpoint was raised from 54 t,
3.6 inches to 56 +/- 3.6 inches to allow more time for opera'.or action.
Unit 1, which is presently 45 inches +/- 3.6 inches, will be changed in the future.
Reference:
2X4DB170-1 and 2 N0E-02268 Description of Change:
Uni' 2 has a drain line installed on the day tank so that the day tank can be drained back to the fuel oil storage tank. The line has a lock closed isolation valve.
Refernnce: ODR T-2-87-0034 and MWO 2-88-01663 2X4AK01-361 and 369, MFCRB-18026 Description of Change:
Unit 2 has added orifices in the' air logic system to allow the low lube oil pressure trip to be active during an energency start coincideht with a normal shutdown.
Unit 1 has not made this change, f
0940m E2-2 07/18/88 SL-4696 Rev. 1 700775
-Georgia Power d ENCLOSURE 2 (Continued)
FACILITY DESIGN AND SYSTEMS RELEVANT TO CONTROL ROOM PERSONNEL AND OPERATIONAL' CHARACTERISTICS
Reference:
ODR T-2-87-00447 and MWO 2-88-00060 Bill of Material 2X3AEC1-107 Item #103 Description of Change: On Unit 2 the sync. mode select switches turn in the opposite direction.
They have been revised to make-up in the manual and auto positions as shown on elementaries and instruction manual bill of materials.
No design change documents have been issued to make tiiis change in unit 1.
Reference:
DR T '-86-2118 Deferr ed Modification #90-0001 Description of Ch 4nge:
The Unit 2 sr quencers have a reset pushbutton to allow resetting of the sequer:er if the sequencer fails to complete the required '.oading seq'.ence.
Unit 1 requires a circuit card to be pulled to complete this task.
Unit 1 plans to install the reset pushbutton in 1990.
This (ifference may have an impact on the E0Ps.
9.
Heater Drain Pumps
Reference:
2X4DB163-3 and 163-4 2! '98159 Description of Change:
Valves 2-1310-X4-521 and 522 were added on unit 2 to allow warm up of the heater drain pumps prior to placing them in service to reduce thermal shock.
- 10. Auxiliary Building HVAC
Reference:
YFCRB-6471, DCR-87VlE0177 2X3D-DG-002C, F, L. P and S 2X5DB026-1 2X5DN050-1 2X4DB208-1 Description of Change: On a CVI signal the Unit 2 Auxiliary Buf1 ding HVAC units will trip to comply with FSAR 9.4.3.2.2.3
- 11. CRDM Low Flow Alarm
Reference:
DCR-87V1E0297 2X3D-BG-802A Description of Change:
On unit 2 with less than 2 CRDM tans running a low flow alann will annunciate on ALB52E08.
Unit 1 has deferred this change.
0940m E2-3 07/18/88 SL-4696 Rev. 1 700775
Georgia Power d q
ENCLOSURE 2 (Continued)
FACILITY DESIGN AND SYSTEMS RELEVANT TO CONTROL ROOM PERSONNEL AND OPERATIONAL CHARACTERISTICS
- 12. Control Building Electrical Penetration Filter Units
Reference:
1X4DB209 2X4DB209 Description of Change:
The unit 2 electrical penetration filter units have been deleted.
The unit 1 filter units will remain in service.
- 13. RHR Injection Orifices
Reference:
1-X6AA06-489-3, Note 3 YFCRB-613N Description of Change:
Uni t 1 RHR injection orifices are sized larger than the unit 2 orifices.
The open stroke on valves 1HV-606 and 1HV-607 is limited to prevent pump runout.
- 14. Annunciator Power Supplies
Reference:
N0E-02268 Description of Change:
Unit 2 uses a different type of annunciator inverter which incorporates an automatic transfer between the AC/DC power supplies.
Both Unit 1 and Unit 2 power supplies will auto swap from the primary AC to the backup DC on a loss of primary power.
Unit 2 power supplies will auto swap from the DC backup to primary AC when the primary power is available provided the source selector switch is in the AC position.
On Unit 1, it is a manual operation to transfer from DC back to AC.
- 15. Condensate System
Reference:
MFCRB-4046 2X40B185-1 2X4DB168-1 Description of Change:
Fill and vent of the unit 2 condensate system will be by use of the condensate demin backwash pump using the CSTs ds a Water source.
The water will enter the condensate system through a 12" flush connection on the condensate pump discharge header.
Unit one will use the condensate pumps and the condenser as a water source.
- 16. Heat Tracing
Reference:
P& ids 1X4DB124,133-1,133-2,146-2,161-1,164-2, and 184 2X4DB124,133-1,133-2 146-2,161-1,164-2, and 184 AX4DB190-2 Description of Change:
Some outs 0 0 areas of unit 2 rely on room (area) heating instead of heat trac ng for frr.eze protection.
Unit 1 has heat tracing for freeze protection in these areas.
These areas include the RWST, RMWST, CSTs, NSCW pump and valve rooms, and underground tunnels.
0940m E2-4 07/18/88 SL-%96 Re v. 1 y,,,
r Georgia Power b ENCLOSURE 2 (Continued)
FACILITY DESIGN AND SYSTEMS RELEVANT TO CONTROL ROOM PERSONNEL AND'0PERATIONAL CHARACTERISTICS
- 17. Steam Dump Control in the Steam Pressure Mode
Reference:
EA 2-88-12 YFCRB-7026 Description of Change:
Unit 2 has changed the pressure control valves (PV-507A, B, C) such that they have equal percentage cams (Flow Demand) instead of linear percentage cams (Valve Stem Demand) as unit 1
does.
This change will provide better control characteristics at low steam (heat) loads.
LechnicalSpecifications Anticipated Differences and/or Changes to be made to the Unit 1 Tech Specs when Common Tech Specs are issued.
1.
RTNDT Limits and Copper Content
References:
TS 3.4.9 page 3/4 4-30 Figure 3.4-2 page 3/4 4-31
==
Description:==
Unit 1 Values Unit 2 Values Actual Copper Content
.06 WT.%
.05 WT.%
Actual Initial RTNDT 30 F 40 F TS will be revised to reflect unit 2.
2.
Spray Additive Flowrates
Reference:
TS 4.6.2.2d page 3/4 6-14
==
Description:==
Unit 1 Yalues Unit 2 Values Train A Eductor Flowrate 120 +/- 30 GPM Not Determined Train B Eductor Flowrate 130 +/- 30 GPM Not Determined 3.
Piping Penetration Area Filtration System
Reference:
TS 3.7.7 and 4.7.7 page 3/4 7-17
==
Description:==
Unit 1 Value Unit 2 Value Flow Rate Through HEPA Filter 15500 CFM Not Determinea 4.
Area Temperature Monitoring
Reference:
TS 3.7.10 page 3/4 7-27 Table 3.7-3 page 3/4 7-28
==
Description:==
There will be new rooms associated with unit 2 added to table 3.7-?.
0940m E2-5 07/1C/88 SL-4096 Rev. 1 s
Georgia Power d ENCLOSURE 2 (Continued)
FACILITY DESIGN AND SYSTEMS RELEVANT TO CONTROL ROOM ERSONNEL'ANDOPERATIONAL_ CHARACTERISTICS 5.
Spent Fuel Storage Pools Capacity
Reference:
TS 5.6.3 page 5-5
==
Description:==
East Pool (Unit 1) 288 fuel assemblies West Pool (Unit 2) 2098 fuel assemblies Both numbers are proposed.
6.
High Energy Line Break (HELB) Protection T, S. 3.3.3.11
Reference:
There have been new HELB in',truments added to table Description.
3.3-11 for unit 2.
7.
Posi'.tve Moderator Temperature Coefficient (PMTC)
Ref9rence:
T. S. 3.1.1.3
==
Description:==
Unit l's PMTC T. S. will change concurrent with the In association with this change the RWST unit 1 refueling outage.
volumn and boron concentration, and the boron dilution flow rates may l
change.
Procedures, Primarily Abnomal and Emergency Operating Procedures Limited operational differences should exist in the E0Ps and AOPs.
These differences may include:
A reference in the remote shutdown A0P regarding the remote operation 1.
of the unit 2 DG fuel oil transfer pumps.
Reference in the E0Ps to the sequencer reset pushbutton.
2.
Control Room Design and Instrument Locations Control Room Layout The Unit 2 Main Control Board (QMCB) is a rotated image of the Unit 1 On sections A, B, and C of the Main Control Board Main Control Board.
the left-right relationship for all the controls and displays is identical.
This identical relationship for the A, B,
and C section includes the board layout and labeling.
The Control Room Design Review will note any differences this summer. None are planned or expected.
07/18/88 E2-6 0940m Rev. 1 SL-4696 mm
Georgia Power 1 ENJLOSURE 2 (Continued)
FACILITY DESIGN AND SYSTEMS RELEVANT TO CONTROL ROOM PERSONNEL-AND OPERATIONAL CHARACTERISTICS The one exception to identical layout on the Main Control Board is the D section.
The D section was a backfit after the control room cesign was completed and floor space did not allow an identical arrangement.
Section D contains the same equipment on both units (RVLIS, PSMS, and Main Steam Bypass Isolation Valves).
Section D is on the left end of section A on unit 1 and to the.ight of section B on unit 2.
This will require looking left on unit 1 and right on unit 2 to verify that the Main Steam Bypass Isolation Valves are shut or, a Main Steam Isolation.
There should be no impact on routine unit operati.n.
The rest of the Unit 2 Control Boards appear as if the Unit 1 Boards were moved west.
Their appeararse on unit 2 will be the same as on unit 1 if you are standing in frock of them.
The Electrical Auxiliary Board (QEAB) will appear somewhat different from the center of the control room.
In unit 1 it is ov0r the right shoulder and in unit 2 it will be over the left shoulder.
This will rec,Jire a slightly different scanning pattern during haiate operator action in the E0Ps but should have no impact on unit operation.
The high voltage section of the QEAB is different to reflect the differences in the switchyards but the Unit 2 inplant distribution systems will appear identical Unit 1.
The common distribution system is on the Unit 1 QEAB.
The control boards will be dif ferent to the extent that most common equipment is located on un' t one.
The Process and Effluent Radiation Monitoring System Panel (PERMS) non-safety related communications console for unit 2 will be at the west end of the QEAB instead of the east end of the Relay Panel as it is on unit 1.
See AX5052-A02 ( Attached) for the control room layout.
Control Room Wall A security wall was erected through the center of the common control room to separate unit 1 from unit 2 when unit 1 security went into effect.
Original plans were for this wall to be removed when unit 2 security went into ef fect.
Current plans are to leave most of the wall
/-
to reduce cost, provide unit separation, and reduce inter-unit noise.
The wall will be open on the Shi ft SupervisoH; station, near the south door, and behind the QPCP.
0940m E2-7 07/18/88 SL-4696 Rev. 1 700775
~
Georgia Pos.cr1 ENCLOSURE 2 (Continued)
FACILITY DESIGN ANC SYSTEMS RELEVANT TO CONTROL ROOM PERSONNEL AND OPERATIONAL-CHARACTERISTICS Plant Computers The plant computer (PROTEUS and ERF) terminals will t,a in mirror image locations.
The PROTEUS computer function will be different in that no common inputs go to unit 2.
The ERF computer will be identical except that the common radiation monitors and weather data will be displayed only on unit 1.
Planned Differences Valve and Instrument Labeling Program The valves and instruments located at the Vogtle Electric Generating Plant are labeled with unique labels that indicate unit number, system number, valve or instrument number, the name of the valve or instrument indicating its purpose, the train if appropriate, and any special notes ab6ut the component.
Unit 1 has white rectangular (3" X 4") labels and unit 2 has round (4" diameter) blue labels Operations Procedure Binders The unit specific procedure N nders (system operating proceddres, lineup procedures, operations surveillance procedures, etc.) are marked indicating which unit they belong to.
Unit 1 procedures are maeked with a large 1 and unit 2 procedures are marked with a large 2.
0940m E2-8 07/18/88 SL-4696 Rev. 1 wn