ML20217Q212

Proposed Tech Specs Changing Design Basis of EDG Air Handling Sys

ML20217Q212
Person / Time
Site:	Crystal River
Issue date:	08/26/1997
From:	FLORIDA POWER CORP.
To:
Shared Package
ML20217Q183	List: 3F0897-25, Application for LAR 216 Proposing Amend to License DPR-72, to Change Design Basis of EDG Air Handling Sys ML20217Q212
References
NUDOCS 9709020109
Download: ML20217Q212 (11)

Text

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i]. S. Nuclear Regulatory Conunission 3F0897'25 -

Enclosure FLORIDA POWER CORPORATION CRYSTAL RIVER UNIT 3 DOCKET NUMBER 50-302/ LICENSE NUMBER DPR-72 LICENSE AMENDMENT REQUEST 216 EMERGENCY DIESEL GENERATOR AIR HANDLING SYSTEM STRIKEOUT / REDLINE PAGES Bases e

Deletions are indicated by strikeout.

Additional and replacement text are indicated by shading,

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AC Sources-Operating B 3.8.1 BASES LC0 The 230 kV and 500 kV substations, while part of the (continued) offsite network, are not considered part of the circuit required by this LCO. The OPERABILITY of the circuit is supported by the substation provided the substation is capable of supplying the required post accident loads. Each EDG must be and voltage, capable and of startingIts connecting to respective ES bus onaccelerating to rated sp detection of bus undervoltage. This must be accomplished within 10 seconds. Each LOG must also be capable of accepting required loads within the assumed loading sequence intervals, and continue to operate until offsite power can be restored to the ES buses. These capabilities are required to be met from a variety of initial conditions, such as the EDG in standby with the engine hot and the EDG in standby with the engine at ambient conditiors. Proper sequencing of loads, including shedding of non-essential loads, is a required function for EDG OPERABILITY.

EDG"0PERABli.ITY75461res4F6 Handling: System coolingsfanM(iedehfifatiofuiinjiTEDG7Alf for:each EDGiin= order to" inaintainLthe tem)eraturelofMhesEDGrenginetroom:and)EDG controlKroomiwit11nimanufGturerf sslimits6 Based on" ~

'analysisisingle fanior dualLfan[operationii.s;acceptablls

dependen tiupon.(f an , supply 2ai rf tempe rat u re?

The AC sources in one train must be separate and independent (to the extent possible) of the AC sources in the other train. For the EDGs, separation and independence are complete. For the offsite AC sources, separation and independence exist to the extent 3ractical. A circuit may be connected to more than one ES aus and not violate separation criteria. A circuit that is not connected to an ES bus is required to have the capability for the operator to transfer power to the ES buses in order to be considered OPERABLE.

APPLICABILITY Two onsite and two offsite AC sources are required to be OPERABLE in MODES 1, 2, 3, and 4 to ensure that:

, a. Acceptable fuel oesign limits and reactor coolant pressure boundary limits are not exceeded as a result of anticipated operational occurrences (A00s) or abnormal transients; and

b. Adequate core cooling is provided and containment OPERABILITY and other vital functions are maintained in the event of a postulated DBA.

(continued)

Crystal River Unit 3 B 3.8-5 Amendment No. 449

AC Sources-Shutdown B 3.8.2 BASES LCO One of the following qualified circuits is required to be (continued) OPERABLE to satisfy this LCO:

a. The offsite power transformer, cabling through breakers 3211, and 3212, connecting to ES bus 3A and 3B respectively.

b. The BEST transformer, nonsegregated-phase bus through breakers 3205 and 3206, connecting to ES bus 3A and 3B respectively.

c. Back feed from the 500 kV substation through the Unit 3 step-up transformers and the Unit 3 auxiliary transformer, nonsegregated-phase bus through breakers 3207 and 3208, connecting to ES bus 3A and 3B respectively. In order to make use of this power source, the step up transformer must first be manually disconnected from the CR-3 main generator by disengaging the disconnect links, and the backfeed ground fault protection scheme enabled.

The 230 kV and 500 kV substations, while part of the offsite network, are not considered part of the circuit required by this LCO. The OPERABILITY of the circuit is supported by the substation provided the substation is capable of supplying the required post accident loads.

The EDG must be capable of starting, accelerating to rated speed and voltage, and connecting to its respective ES bus on detection of bus undervoltage. The EDG must be capable of shedding non-essential loads, starting and picking up the ES bus, and must continue to operate until offsite power can be restored to the bus. These capabilities are required to be met from a variety of initial conditions such as the EDG in standby with the engine hot or the EDC in standby at ambient conditions.

E DG"0 PERABIll TWie qu Wisir~~ eM snt i l stiifnTuithi3 EDG I Al f Handling Systemic _oolingi:. fan )4forieachiEDGainf order /to'~

maintaintthettem)eratureTof..heiEDG;engineiroom;and?EDG tont'rolJ room?wi t 11nimanuf acturerf s ?l imit'si : Based Lor (E analysisksingletfannorcduakfan operation;itisf acceptable

~ ' ~ ~ ~ ~

dependentlupon fWsupply[airttemp.erature. '~

It is acceptable for electric power distribution trains to be cross-tied during shutdown conditions, allowing a single offsite power circuit to supply all required trains.

(continued)

Crystal River Unit 3 B 3.8-26 Amendment No. 449 1

kJ. S. Nucle:r Regulatory Commission 3F0897125 Enclosure FLORIDA POWER CORPORATION-CRYSTAL RIVER UNIT 3 -

DOCKET NUMBER 50-302/ LICENSE NUMBER DPR-72 LICENSE AMENDMENT REQUEST 216 EMERGENCY DIESEL GENERATOR AIR HANDLING SYSTEM REVISION BAR PAGES Bases

-ATTACHMENT TO LICENSE AMENDMENT NO.

FACIllTY' OPERATING LICENSE NO. DPR 72 DOCKET NO. 50-302  :

. Replace 1the following ) ages of the Appendix "A" Technical- Specificationr with

!/

the attached pages.--Tie revised pagessare identified by_ amendment number and contain vertical lines indicating the area of change.

-Remove Reolace B 3.8-5 B 3.8-5 B 3.8-26 B 3.8-26 NOTE:-

The proposed changes to-these Bases pages for LAR 216 are additive to-and do not .

affect-those changes proposed with any other outstanding FPC license amendment request to date.

c. _ -

AC Sources-Operating B 3.8.1 BASES LCO The 230 kV and-500 kV substations, while part of the (continued) offsite network, are not considered part of the circuit-required by this LCO. The OPERABILITY of the circuit is supported b capable of supplyingy the substation provided the required the substation post accident loads. is Each EDG must be-capable and voltage, and connectingof startingIts to respective ES bus onaccelerating to rated-s detection of bus undervoltage. This must be accomplished

-within 10 seconds. Each EDG must also be capable of accepting required lo.ds within the assumed loading sequence intervals, and continue to o be restored to the ES buses.perate Theseuntil offsite power capabilities are can required to be met from a variety of initial conditions.-

such as the EDG in standby with the engine hot and the EDG in standby with the engine at ambient conditions. Proper sequencing of loads, including shedding of non-essential loads, is a required function for EDG OPERABillTY.

EDG OPERABILITY requires pro er ventilation using EDG Air

) for each EDG in order to 4 Handling the maintain System coolingof tem)erature fan ( he EDG angine room and EDG' control room wit 11n manufacturer's limits. Based on analysis, single fan or dual fan operation is acceptable dependent upon fan supply air temperature.

The AC sources in one train must be separate and independent (to the extent-possible) of the AC sources in the other train. For the EDGs, separation and independence are complete. For the offsite AC sources, separation and independence exist to the extent practical. A circuit may be connected to more than one ES bus and not violate separation criteria. A circuit that is not connected-to an ES bus is required to have the capability for the operator to transfer power to the ES buses in order to be considered OPERABLE.

l APPLICABILITY Two onsite and two offsite AC sources are required to be OPERABLE in MODES 1, 2, 3, and 4 to ensure that:

a. Acceptable fuel design limits and reactor coolant pressure boundary limits are not exceeded as a-result of anticipated operational occurrences (A00s) or-abnormal transients; and

b. Adequate core cooling is provided and containment 0PERABILITY and other vital functions are maintained in the event of a postulated DBA.

(continued)

Crystal River Unit 3 B 3.8-5 Amendment No.

AC Sources-Shitdown B 3.8.2 BASES LCO One'of the following qualified circuits is required to be l (continued)_ OPERABLE to satisfy this LCO:

a. The offsite power transformer, cabling through breakers 3211, and 3212, connecting to ES bus 3A and 3B respectively,

b. The BEST transformer, nonsegregated-phase bus through breakers 3205 and 3206, connecting to ES bus 3A and 3B respectively,

c. Back feed from the 500 kV substation through the Unit 3 step-up transformers and the Unit 3 auxiliary transformer, nonsegregated-phase bus through breakers 3?07 and 3208, connecting to ES bus 3A and 3B respectively. In order to make use of this power source, the step up transformer must first be manually disconnected from the CR-3 main generator by disengaging the disconnect links, and the backfeed ground fault protection scheme enabled.

The 230 kV and 500 kV substations, while part of the offsite network, are not considered part of the circuit required by this LCO.. The OPERABILITY of the circuit is supported by the substation provided the substation is capable of supplying the required post accident loads.

The EDG must be capable of starting, accelerating to rated speed and voltage, and connecting to its respective ES bus on detection of bus undervoltage._ The EDG must be capable of shedding non-essential loads, starting and picking up the-

-ES bus, and must continue to operate until offsite, power can be restored to the bus. These capabilities are required to be met from a variety of initial conditions such as the EDG

-in standby with the engine hot or the EDG in standby at ambient conditions.

EDG OPERABILITY requires proper ventilation using EDG Air Handling System cooling fan s) for each EDG in order to maintain the tem)erature of(the EDG engine room and EDG control room wit 11n manufacturer's limits. Based on analysis, single fan or dual fan operation 'is acceptable dependent upon fan supply air temperature.

It is acceptable for electric power distribution trains to be cross-tied during_ shutdown conditions,_ allowing a single e offsite power circuit to supply all-required train;.

(continued)

Crystal River Unit 3 8 3.8-26 Amendment No.

l 1

U, S. Nuclear Regulatory Commission '

3F0897 25 Enclosure FLORIDA POWER CORPORATION CRYSTAL RIVER UNIT 3 DOCKET NUMBER 50-302/ LICENSE NUMBER DPR-72 LICENSE EdENDMENT REQUEST 216 EMERGENCY DIESEL GENERATOR AIR HANDLING SYSTEM ATTACHMENT 1 FSAR REVISION Strikeout / Shadow Changes a

Text in Revision 23 of Indicated by shadowed the FSAR that should text remain as a result of the approved LAR-Text being deleted iEndicsted by 3trikeout text Text being added Indicated by doubl e-underline text

f. A Lube 011 System (see Figure 813) consisting of an engine driven lube

. . oil pump, a lube oil filter. two lube oil coolers, a full flow strainer, a motor driven pre lube pump, a standby circular pump, a 15 kW electrical heater, a thermostat, a hand priming pump, and a local pressure gauge to

. )rovideenginelubrication.

t htake W for combustion is dcscribed " Sections 9.'.2.c.2 and 9.'.2.1.h.2.

Only the following three subsystem ties are provided between the two diesel generator units:

e, A double valved connection between the two 30,000 gallon fuel oil storage ,

tanks to provide additional fuel capacity to either diesel generator unit- Both valves are manually operated and remain closed during normal plant operations.

b. A double valved connection to interconnect the air reservoirs in the Air Start System to provide additional air to either diesel generator unit.

Both valves are manually operated ard remain closed during normal plant operations.

c. A double valved wnnection to interconnect fuel oil Day Tanis A and B to provide the capability to access fuel supply via Fuel Transfer Pumps A and B to either day tank. Both valves are manually operated and remain closed during normal plant operations.

Control power for each emergency diesel generator is supplied from the appropriate 125/250 volt Ciass 1E DC plant battery, e.g., emergency diesel generator _3A control power is supplied from battery 3A.

Circuits supplying control power to che diesel generator units are separated in accordance with Section 8.2.2.12, e.g. circuits for control and power for the diesel generator 3A unit is routed only-via an ES A raceway, Emergency diesel generator control is shown in Figure 8-9 and each is provided with the following local and remote alarms:

Local f

Remote  !

Crank Case Press High X Jacket Cooling Press Low X

• Engine Overspeed X

• Fuel Oil Press Low X Lube Oil Press Low X Lube 011 Temp Low X

• Lube 311 Level Low X

• Jacket Coolant level Low X

-Jacket Coolant Temp High X

• Start Air Man Valve Not Fully Open X

• Fuel Oil Level Low X

• Fuel Oil Level High X

• DC 011 Transfer Pump Operating X 8 20 (Rev. 46)

-4.

2. Fuel Handling Area System (AH XE), one 100% capscity fan (AHF 10) for the fuel handling area,

3. Decay Heat Pump Cooling System (AH XF), two 100% capacity fans i (AHF 15A, AHF-ISB) and two 100% capacity cooling coils (AHHE 30A, AHHE-30B).

4, Spent Fuel . Coolant Pump Cooling System (AH XG), two 100% capacity fans (AHF-8A, AHF 88) and two 100% capacity cooling coils ,

(AHHE- 29A AHHE-29B).

5. Auxiliary Building Exhaust System (AH-X3), four 50% capacity fans (AHF-14A, AHF-14B AHF-14C, AHF 140), four 25% capacity filter plenums (AHFL-2A, AHFL-28 AHFL-2C, AHFL 2D),

d. Control Comnlex Systems (AH XK. AH-XS CH)

1. Normal Duty Supply System (AH XK), two 100% capacity fans (AHF-17A AHF-17B) and two 100% capacity cooling coils (AHHE-5A, HHE-5B).

< 2. Emergency Duty Supply System (AH XK), two 100% capacity fans (AHF-18A, AHF-188) and two 100% capacity emeroency charcoal filters (AHFL 4A, AHFL-4B). The Control Complex emergency charcoal filter data is given in Table 9-15.

3. Return Air System (AH XK). two 100% capacity faris (AHF-19A.

AHF-19B).

j- 4. Control Complex Chilled Water System (CH), two 100% capacity chillers (CHHE-1A, CHHE 1B) and two 100% capacity pumps (CHP-1A, CHP-1B).

5. EFIC Room HVAC System (AH XS), two 100% c:pacity Air Handling Units with Filters (AHF-54A, AHF-54B).

6. Appendix R Chilled Water Cooling System, one 100% capacity-chiller (CHHE-2) and one 100% capacity pump (CHP-2).

7. Control Complex Relief Fans (AH-XK), two 100% capacity fans (AHF-21A, AHF-218).

e. MiscellEneous Systems ( AH-XP AH-XL)

1. Penetration Cooling System (AP XP), two 100% capacity fans (AHF-9A, AHF 9B) and Cooling coils (AHHE-13A, AHHE-13B) and two 100% capacity filters (AHFL-7A, AHFL 7B).  !

2. Emergency Diesel Generator Air Handling System (AH-XL), two- g subsystems, each with two 50% . capacity. supply fans (AHF-22A.-

AHF-22B,-AHF-22C, AHF-220),and one.100% capacity filter (AH.FL-5A.-

AHFL-58). and one' 100t = canacity diesel: aenerator control room exhaust fan (AHF-28A and AHF 28B).

9-52 (Rev. 24) l I

m_.m_._ _ _ _ _ _

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2. Emergency Diesel Generator Air Handling System - Each diesel room has a

' separate, but identical ventilation system. The system far each room consists of two 50% capacity a44t-440w gpgking fans, one 100% capacity roughing filter, one 100% capacity diesel generator control re:m ggggt fan, corrrnon ductwork, and controls, lhe system is arranged so tbJt the vent 44at404 kgg goolag fans sta-t automatically when the diesel tgW4ock-4sading gJttu and discharge filtered outside air intu the diesel room for cooling. The system supplies sufficient air to maintain the roari temperature no greater tha.: 120 F. Sued on analy11LSM210. laa-.WJ4M@gAtlon is aggpigg 0

@fPMdMt=JR2.n fan _ sypolv air Jgpgggg, Foth gappg fans start automatically when the diesel be9MS-bloc 4-4sa#og garls. (q$pgjan failure is indicated in the gig wotrol room. A separate wall fan circulates diesel room air through the 'O ' ,el generator control room. The system includes e products if combw detector in the diesel room to alarm and close fire dampers and low air flow switches to alarm in the control room.

Fan isolation dampers open when the fan is energized and close when de-energized, Room relief dimper opens on diesel stort or fan start and remains open while either is running. The diesel room WA44t4ng ggdgg fans AHF-22A, AHF-228 AHF 22C, and AHF-220 and associated HVAC control c cinets 20 and 19, respectively, are Seismic Class 1. The diesel room unit heaters, AHHE 9A and AHHE 9B: the diesel generator control roort unit heaters, AHHE-15A and NIHE-15B: and thg_dleieLaenetalog control room exhaust fans, AHF 28A and NiF-288, are Seismic Class 111.

3. Intermediate Building - The Intermediate Building Ventilation System includes an outside Air Supply System located at the north portion cf the Intermediate Building and an Exhaust System located at the vest portion of the Intermediate Building. Both the Supply and Exhaust Systems include two 100% capacity supply units. AHF-24A and AHF 24B and two 100', capacity exhaust units AHF 29A and AHF 29B. The system supplies filtered outside air at the north end of the Intermediate Building through one 100% capar.1ty roughing filten. NiFL-6, draws it through the building and exhausts it at the west end of the building. The supply fan cperates on demand of a room thermostat.

Maximum flow rate thr0 N the Intermedsate Building is approximately 6 air changes per hour. Each f perating fan is isolated from the inactive fan by air operated discharge dampers. Dampers for each fan are supplied from piped control c4r and from a standby reservu bottle. High temperature switches in the air intake and in the Intermediate Building stop supply fans and alarm in the control room. A low temperature sensor in the Intermediate Building alarms in the control room. A prodtcts of combustion detector in the Intermediate Building alarms in the control room. All equipment and controls of this system are Seismic Class 111.

9-55a (Rev. 24)

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