ML19318A897
| ML19318A897 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 06/19/1980 |
| From: | PORTLAND GENERAL ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML19318A893 | List: |
| References | |
| NUDOCS 8006240333 | |
| Download: ML19318A897 (4) | |
Text
LCA 57, Rsvision 1 Attachm:nt A Page 1 of 4 p.
e
%J REACTIVITY CONTROL SYSTEMS
,80 RATED WATER SOURCES - SHUTDOWN LIMITING CONDITION FOR OPERATION 3.1.2.7 As a minimum, one of the following borated water sources shall be OPERABLE:
a.
One boric acid storage tank with:
1.
A minimum contained volume of 5050 gallons, 2.
Between 7,000 and 7,700 ppm of boron, and 3.
A minimum solution temperature of 65 F.
b.
The refueling water storage tank with:
1.
A minimum contained volume of 86,500 gallons, 2.
Between 2000 and 2500 ppm of boron, and 3.
A minimum solution temperature of 37 F.
APPLICABILITY:
MODES 5 and 6.
ACTION:
With no borated water sources OPERABLE, suspend all operations involving CORE ALTERATIONS or positive reactivity changes until at least one borated water source is restored to OPERABLE status.
SURVEILLANCE REQUIREMENTS 4.1.2.7 The above required borated water source shall be demonstrated OPERABLE:
a.
At least once per 7 days by:
1.
Verifying the boron concentration of the water, 2.
Verifying the water level of the tank, and 3.
Verifying the boric acid storage tank solution temperature when it is the source of borated water.
b.
At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> by verifying the RWST temperature when it is the source of borated water and the outside ambient air temperature is < 37'F.
TROJAN-UNIT 1 3/4 1-15 8006240 3 }'3
LCA 57, Rsvision 1 Attachment A Page 2 of 4 REACTIVITY CONTROL SYSTEMS BASES 3/4.1.2 B0 RATION SYSTEMS-(Continued)
With the RCS temperature below 200 F, one injection system is acceptable without single failure consideration on the basis of the stable reactivity condition of the reactor and the additional restrictions prohibiting CORE ALTERATIONS and positive reactivity change in the event the single injection system becomes inoperable.
The boron capability required below 200*F is sufficient to provide a SHUTDOWN MARGIN of 1% ak/k after xenon decay and cooldown from 200*F to below 140*F (80*F). This condition requires either 1000 usable gal-lons of 7000 ppm borated water from the boric acid storage tanks or 8500 usable gallons of 2000 ppm borated water from the refueling water storage tank.
The required boric acid storage tank volume of 1000 gallons is below the usable level instrumentation range and thus has been increased to a value on scale (5050 gallons). The required RWST volufne of 8500 gallons must be increased to account for nonusable volume due to tank geometry letdown and vortexing considerations (86,500 gallons).
3/4.1.3 M0VABLE CONTROL ASSEMBLIES The specifications of this section ensure that (1) acceptable power distribution limits are naintained, (2) the minimum SHUTDOWN MARGIN is maintained, and (3) limit the potential effects of a rod ejection accident.
OPERABILITY of the control rod position indicators is required to determine control rod positions and thereby ensure compliance with the control rod alignment and insertion limits.
The ACTION statements which permit limited variations from the basic requirements are accompanied by additional restrictions which ensure that the original criteria are met. Misalignment of a rod requires measure-ment of peaking factors or a restriction of THERMAL POWER; either of these restrictions provide assurance of fuel rod integrity during continued operation. The reactivity worth of a misaligned rod is limited for the remainder of the fuel cycle to prevent exceeding the assumptions used in the accident analysis for a rod ejection accident.
l The maximum rod drop time restriction is consistent with the assumed rod drop time used in the accident analyses.
Measurement with Tavg 1 550*F and with all reactor coolant pumps operating ensure that the measured drop times will be representative of insertion times experienced during a reactor trip at operating conditions.
TROJAN-UNIT 1 8 3/4 1-3
i LCA 57, Ravicion 1 Attachment A Page 3 of 4 e
INDEX LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTION Page 3/4.7.2 STEAM GENERATOR PRESSURE / TEMPERATURE LIMITATION......
3/4 7-12 3/4.7.3 COMPONENT COOLING WATER SYSTEM............
3/4 7-13 3/4.7.4 SER VIC E WATER SYS TEM.................................
3/4 7-15 3/4.7.5 ULTIMATE HEAT SINK...................................
3/4 7-17 3/4.7.6 CONTROL ROOM EMERGENCY VENTILATION SYSTEM............ 3/4 7-18 3/4.7.7 SEALED SOURCE CONTAMINATION..........................
3/7 7-21 3/4.7.8 FIRE SUPPRESSION SYSTEMS Fi re Su ppressio n Wa ter Sys tem........................
3/4 7-23 Spray, Sprinkl er, and/or Del uge Systems..............
3/4 7-27 l
Fire Hose Stations...................................
3/4 7-29 3/4.7.9 PENETRATION FIRE 8ARRIERS............................
3/4 7-31 3/4./.10 HYDRAULIC SNUB 8ERS...................................
3/4 7-32 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES 0perating............................................
3/4 8-1 Shutdown.............................................
3/4 8-5 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS A.C. Di stribution - Operating........................
3/4 8-6 A.C. Distribution -
Shutdown.........................
3/4 8-7 D.C. Distribution -
0perating........................
3/4 8-8 D.C. Distribution -
Shutdown.........................
3/4 8-10 s
TROJAN-UNIT 1 VII
LCA 57, Revision 1 Attachment A Page 4 of 4 PLANT SYSTEMS SPRAY, SPRINXLER, AND/0R DELUGE SYSTEMS l
LIMITING CONDITION FOR OPERATION 3.7.8.2 The following spray, sprinkler, and/or deluge systems shall be l
OPERABLE:
a.
Emergency diesel generator rooms, b.
Auxiliary feedwater pump room, c.
Electrical penetration areas, d.
Diesel fire pump room, and e.
Cable spreading room.
APPLICABILITY:
Whenever equipment in the spray, sprinkler, and/or deluge protected areas is required to be OPERABLE.
ACTION:
a.
With one or more of the above required spray, sprinkler, and/or deluge systems inoperable, establish a continuous fire l
watch with backup fire suppression equipment for the unpro-tected area (s) within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />; restore the system to OPERABLE status within 14 days or, in lieu of any other report required by Specification 6.9.1, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within the next 30 days outlining the action taken, the cause of the inoperability and the plans and schedule for restoring the system to OPERABLE status.
b.
The provisions of Specification 3.0.3 and 3.0.4 are not applicable.
SURVEILLANCE REQUIREMENTS 4.7.8.2 Each of the above required spray, sprinkler, and/or deluge I
systems shall be demonstrated OPERABLE:
.a.
At least once per 12 months by cycling each testable valve in the flow path through at least one complete cycle of full travel.
b.
At least once per 18 months:
1.
By performing a system functional test which includes simulated automatic actuation of the system, and:
a)
Verifying that the automatic valves in the flow path actuate to their correct positions on a test signal, and TROJAN-UNIT 1 3/4 7-27 l