ML20008F718
| ML20008F718 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 04/01/1981 |
| From: | Hairston W ALABAMA POWER CO. |
| To: | |
| Shared Package | |
| ML20008F715 | List: |
| References | |
| NUDOCS 8104210533 | |
| Download: ML20008F718 (17) | |
Text
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JOSEPH H. FA"J.ET hTCIIAR PLUT g UNIT I NARRATIVE SUM"ARY OF OPERATIONS MARCH, 1981 In the month of March,1981, there was one canual trip from Mode 2,
~ two manual shutdowns from Mode 2 a:d one automatic trip from Mode 2.
The unit was shutdown through the middle of March for refueling.
The following safety-related caintenance was perfor=ed in March:
- 1. Performed miscellaneous caintenance on Diesel Generators. .
- 2. Completed main control board modifications reco= mended as a result of human factors evaluation.
- 3. Completed implementation of various NUREG-0578 and hTREG-0737 requirements.
- 4. Completed implementation of various Farley Fire Protection Program Re-evaluation requirements.
- 5. Completed implementation of various design changes associated with NRC IE Bulletin 80-11 and NRC IE Bulletin 79-14.
- 6. Replaced flex gaskets on Reactor Coolant System loop B RTD bypass manifold.
- 7. Repaired open lift coil cable on control rod K-14.
- 8. Replaced bearing on containment mini purge fan motor.
- 9. Pulled No.10 River Water Pump for repair due to high vibration.
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HAJOR CHANGES TO RADIOACTIVE WASTE TREATME'.T SYSTEMS licensee initiated major charges to the radioactive waste systems (Liquid, gaseous and solid): ,
- 1. Shall be reported to the Commission in the Monthly Operating l Report for the period in which the evaluation was i=plemented.
The discussion of each change shall contain:
~1 a. A summary of the evaluation that led to the determination that the change could be made in accordance with 10 CFR 50.59;
. Discussion: The Three-Tank Hittsma Disposable Demineralizer System
. converts plant generated liquid radwaste to a product that is suitable for re-use or discharge. This process dramatically reduces the amount of radwaste that must be packaged and transported for dispo. sal. The following is a summary of the Hittman Disposable Demineralizer System's effect on plant operation:
Offsite Gaseous Releases '- No incrpase in offsite radiation
! . exposure.
Offsite Liquid Releases - No increase in offsite radiation exposure. .
I- Effect of Demineralizer Systen on Shipped Volume - Volume vill be reduced significant;;.
Operator Radiation Exposure - Operator radiation exposure will be reduced significantly.
Radiation Exposure to Public from Shipments - Public exposure will be slightly reduced. -
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Shipping Accident - The probability of a shipping accident will be reduced. ,
l Spent Liner Handling Accident (Spill) - The probability of an accident unlike those already analyzed exists. The consequences of such an accident have been analyzed and found to result in negligible offsite exposure as discussed below:
Changeout of spent demineralizer liners requires lifting of the liner with the auxiliary hook of the spent fuel cask crane.
Failure of the rigging or failure of one or more of the lifting eyes on the liner cauld result in a liner drop accident. Crane lifts will not be made during periods of high winds or inclecent weather, to minimize the potential for handling accidents.
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DISKETT: Tech. 17 1
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A hypoth2tical lin2r drep accident will repres:nt unthing mora than a radioactive spill outside the confines of the auxiliary building. A liner drop would have no impact on the integrity of the auxiliary building structure.
The consequences of a spent de=ineralizer handling accident -
have been evaluated. The centents of a liner are asst =ed to be .
emptied either on the roof of the auxiliary building er on the ground outside the building. There will be no credible =echanism for transporting resins to the site boundary. The release of
-6 10 gallons of waste water asse=ed to be left in the liner has been conservatively evaluated. It was assumed that 10 gallons of reactor coolant decayed for three weeks were released to the storm drains in one minute and e=ptied undiluted into the river. 1
.. This resulted in a calculated whole body dose of 0.22 cillirem.
- b. Sufficient detailed information to totally support the reason for the change without benefit of additional of supplemental information; Discussion: The volume reduction provided by the Disposable Deminera-lizer System is necessary due to the state of South Carolina's volume allocation system in effect at Barnwell, S. C.
- c. A detailed description of the equipment, cceponents and processes involved and the interfaces with other plant syste=s; Discussion: Operating Principles System The liquid radwaste is processed through three separate tanks. Liquid is drawn through an underdrain system in.
each tank. (Pu=p No. 3 discharges liquid back to the plant.) Flow of radwaste into tank No.1 is autoestically controlled by two valves as described later. Provisions are included for adjusting the speed of each pu=p to achieve balanced flow.
Demineralizer Tank No. 1 is loaded with activated carbon to provide initial filtration of the radwaste. This filter re= oves solids and cobalt isotopes existing .
in the form of colloidal-sized suspended solids, as well
, as cleaning agents and other chemicals that can be removed by adsorption on the activated carbon, thus conditioning the radvaste for treat =ent in the sub-sequent tanks.
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Demineralizer Tanks No. 2 and No. 3 centain layered beds of ion-exchange resins, with the resins comprising each layer selected for the particular radionuclides to be eliminated. ank No. 2 recoves =ost of the
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radionuclides, and Tank No. 3 polishes the effluent for return to the pla_.. .
Each tank is equipped with a special gasketed head
_. assembly,which is bolted to the top of the tank and
_ includes,a vent connection.
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Liquid Level Control Each of the three demineralizer head assemblies is -
.. equipped with a set of level probes. When the surface of the liquid touches a probe, a circuit.is created through the conductive liquid. Such circuits are formed when the liquid level reaches the H1, H2 and H3 probes. The signals generated in this manner are routed to the control panel where relay-type logic is employed to control the three pu=ps and
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theflowcontrolvalves.f The liquid level during normal operation is maintained between the H1 and H2 levels. This range is maintained by automatically stepping the pump that discharges into a given liner when the level in that liner 3: ' - reaches H2. (In the case of Tank No.1, one of two valves in parallel closes to reduce ficw from the plant if the level reaches H2.) When the level reaches j to H1, the pump re-starts, or (in the case of Tank No.1) the valve re-opens.
If a malfunction occurs and the level reaches H3, an alarm sounds and a backup circuit stops the pump feeding that tank. (If the H3 level is rea.ched in Tank No.1, T- the alarm sounds and both flow controls valves close.)
Description of Major Assesblies The complete demineralization system consists of three l tanks, three pump skids, and one control panel skid along with their interconnections. The major assemblies are described as follows:
Demineralization Tanks All three liners are similar except that No.1 contains carbon while Nos. 2 and 3 contain layered resins. Up to 125 cubic feet of carbon or resin is loaded through the fill ports by Hittman Nuclear and Development l -- Corporation ,,using proprietary techniques.
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Th2 tanks are apprsximstely six fset in diameter cnd six fcst high and are c:astructed of carb2n stssl. !
Each tank includes an underdrain system extending I over the entire bott:= of' the unit and terminating at a dewatering conze::::. -
The head assembly, holted to the top of the tank, is ,
equipped with a gasket to prevent leakage. Mounted to the head are the electrode holder for the level-sensing probes, the fill and vent penetrations, and a lifting eye. The lifting eye is for the head only.
(Separate lifting lugs are provided for the tank.)
A sample valve is included on the fill line.
Quick-coupling connectors are used to terminate the
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fill, vent, and dewatering penetrations. This facilitates connection of the hoses that connect the tanks ta the skids and plant vent. .
A drain plug is included at the bottom of the tank for use during final devatering of a tank that has been removed from service. -
7 Entry Pump Skid Liquid radwaste from the plant enters through a quick-coupling on the top of the skid and flows through a 1" manually-operated valve. This valve permits adjust-ment of the flow to achieve the desired relationship between the liquid entering tank No. I and the liquid being drawn from tank No. 1.
Liquid flowing through the manually-operated valve is supplied to a 1/2" air-operated valve and to a 1" air-operated valve. These two valves are connected in parallel, and they respond to open-close commands frcs logic in the control panel skid to control the flow of liquid into tank No.1. In the event of a i malfunction which allows the liquid in tank No. I to reach the H3 alarm level, both valves close, completely stopping flow into tank No.1. .
During normal operations,'the 1/2" valve is open at all times. The 1" valve is also open unless the liquid in tank No. I rises to the H2 level at which time it closes and remains closed until the liquid recedes to the El level. In this manner, the liquid in tank No.1 is kept between the H1 and H2 levels so long as it is not being pumped out of the tank at a faster rate than it enters when both valves are open.
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Th2 rata at which liquid is pu= ped cut cf trnk N3. 1 is determined by the speed at which pu=p No.1 is operating. This speed is adjustable by ceans of a throttling valve located on tae control panel skid.
When properly adjus ed, the pu=p recoves liquid from .
tank No. I at the sa.e rate or a slightly lower rate .
than it enters the anh. ,
Starting and stopping of the pump is controlled by a solenoid valve in its air supply line. The solenoid
- valve is. located on the control panel siid and is, in turn, controlled by logic in the control panel. If -
the liquid in tank No. I falls below the H1 level, pump No. I stops until the level rises again to El. Therefore, if the rate of flow through the pu=p exceeds the rate
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of flow into tank No.1, the pu=p will periodically cycle on and off as the liquid in tan 1 No.1 cycles about the El level. This conditio.n can be corrected by adjusting the 1" manually operated valve to increase the flow from the plant, or by reducing the pump speed.
Pump No.1 is also contrplied by the liquid level in l tank No. 2. If the tank' No. 2 level reaches H2, the pump stops and remains off until the level recedes to E1. This action keeps the liquid in tank No. 2 between the H1 and H2 levels. If a malfunction occurs allowing the tank 2 liquid to reach H3 level, a backup circuit
-- stcps pu=p No.1 until the liquid recedes to the H1 level.
A surge suppressor is included in the pu=p discharge line to reduce the flow and pressure pulsations resulting from pump operation.
Two conductivity sensors are included on the Entry Pump Skid. One senses conductivity of liquid received from the plant, and the other senses conductivity of the liquid discharged fres tank No. 1. Signals fron these sensors are routed to l a selector switch on the Control Panel Skid to I
provide a readout and recording of conductivity at either of these points. The relative indications
. indicate the effectiveness of the carbon filter. -
A relief valve is included in the air supply line i for the two air-operated valves. This valve was.
adjusted at time of shipment to vent at 100 PSIG to avoid excessive air pressure to the valves. .
_. Vacuum at the suction port of pump No. I is displayed by a vacuum gauge, and a set vacuum is sensed by a vacuum switch. A high vacuum at this point, indicating: filter or underdrain impair ent in tank No.1 or hose obstruction, turns en an indicator lamp on the control panel.
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1 Pressure et the pu=p No. I dischtrge is dispitysd
, by a pressure gauge, and a set pressure is sensed by a pressure switch. High pressure at this point, indicating obstructi:n of the fill line to tank i No. 2, turns on an indicator lamp on the control
- panel. -
] Provisions for condi-iccing the air supply to the
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pump are included in the form of a lubricator unit in the air supply line at the top of the skid.
The lubricator unit is filled with a mixture of ethylene glycol ad water to ensure against icing of the pump, and the pipe plug allows for periodic injection of penetrating oil into the pump. .
Intermediate Pump Skid .
The Intermediate Pump Skid draws liquid from tank No. 2 and discharges it into tank No. 3. Pump No. 2, located on this skid, is controlled in the same manner as pump No. 1 on the Entry Pump l Skid. De pump operatesjwhenever the liquid in tank No. 2 is at or above the H1 level and the iiquid in tank No. 3 has not reached the H2 level.
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If either of these conditions changes, the pump ~
stops. If the stoppage occurs because H2 was reached in' tank No. 3 the pump stays off until the tank No. 3 level reaches Hl. If the stoppage occurs because the tank No. 2 level rises above H1, the speed of pu=p No. 2 can be reduced, or
- the speed of pump No. I can be increased, to
- stop the liquid in tank No. 2 from cycling about the H1 level.
This skid is also equipped with a surge suppressor, conductivity sensor, vacuum switch and gauge,
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pressure switch and gauge, and air supply condi-tioning provisions for the pu=p.
Discharge Pump Skid The Discharge Pump Skid, removes liquid from tank No. 3 and discharges it into the plant system.
Pump No. 3, located on this skid, operates when-ever the liquid in tank No. 3 is above H1 and pressure in its discharge line is n3t abnormally high. If either of these conditions changes, the pump stops. If the stoppage occurs because of high
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l pressure, an audible alarm is actuated and the pump stays off until the high pressure is rel',eved.
If the stoppage occurs because tank No. 3 leval
- falls below Hi, the pu=p restarts when the level l rises above".El. Cycling of the pump due to level ,
can.be cleared by adjustment of pump speeds as '
previously described.
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As discuss 2d, the pressure switch ca this skid I serves as a pump control in addition to controlling an indicator lamp on the control panel. The surge suppressor, conductivity sensor, vacuum switch and gauge, and the pu=p air supply conditioning -
functions are as described for the other skids. .
A liquid vortex flow =eter is included in the discharge line of this skid. The signal from this transd.ucer is routed to a signal conditioner on the control -
panel skid for a visual display of flow rate and
_. a totalization of processed liquid volume.
Control Panel Skid b . The Control Panel Skid includes the control panel, '.-
conductivity and flowmeter instruments, and condi-tioning and control devices for air supplied to
, the th.iee pumps. . Included on the. front of the
. control panel are the operating controls, indicator
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lamps, and audible alarm. Logic components (relay .
type) which control the valves and pumps as previously described are located inside the control paael.
Conductivity instruments mounted on the skid include two conductivity monitors that provide digital displays, a 2 pen recorder and a four-position selector switch. Conductivity of liquid -
being returned to the plant is continuously displayed
___ on one of the monitors and continuously recorded on one of the recorder channels. This monitor displays conductivity directly in microshos. Input to the other conitor and recorder channel is operator-selected (by using the switch) to display conductivity of liquid at one of the following points:
Position: Heasurement Point 1 Plant radwaste entering the system t 2 Liquid discharged l from tank No. 1 3 Liquid discharged from tank No. 2 l
l A flowmeter mounted on the Control Panel Skid provides a digital indication of the total liquid that has been processed in terms of gallons as well as an instantaneous flow rate indication in terms of percent of full-scale. (Full scale is 72 gal./ min.)
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Plant air is supplied to th2 Control Ptn21 Skid, where it is manifolded into three separate lines (one for each pump in the system). Each line includes a filter /re2ulator unit, hich conditions the air and provides for adjustment of pressure,
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a manually operated globe valve that serves as a -
pump speed throttle, a solenoid operated valve .
that responds to logic in the control panel to
_. start and stop the pu=p served by that line, and an output pressure gauge. A valve is provided at the air inlet to the skid to close off the air supply during shut-down periods.
Interfaces With Other Plant Systems .
The Hittman Portable Demineralization System interfaces with the Unit 1 and Unit 2 Waste Processing Systems.
Vaste water is received from either the Unit 1 or Unit 2 Floor Drain Tanks, Waste Holdup Tanks, Chemical Drain Tanks, Waste Evaporators and Recycle Evaporators.
After demineralization, water is returned to either the Unit 1 or Unit 2 Waste Evaporator Condensate Tank
, for re-use or discharge.
- The Hitt=an Portable Demineralization System receives instru=ent air and service air from Unit 2 for valve and pump operation and control. The EDNC Port-
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able Demineralization System is vented to the Unit 2 Padwaste Area Ventillation System.
- d. An evaluation of the change which shows the predicted releases of radioactive materials in liquid and gaseous effluents and/or quantity of solid waste that differ from those previously predicted in the license application and amendments thereto; -
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Discussica: Offsite Gaseous Releases The HNDC Disposable Demineralizer system will be vented to the radwaste area ventilation system.
The airborne releases from the system will consist primarily of noble gases. As the system is operated at ambient temperature, the releases from system operation will be less than the noble gas releases due to operation of the evaporators.
There will be no additional exposure to members of the public from airborne releases from the system.
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Offsita Liquid P.eleases The volume of liquid releases will be increased by the use of the ENDC system. The additional water released will be the . vater previously used in the '
solidification process. As this volume is less than 10% of the present release volume, the effect on .
offsite dose will be ninimal. The activity
_ released is the only pertinent censideratica in off' site dose computation. As the water to be released will be subject to the same analysis and dose projection as the evaporator distillate, no increase in offsite dose is anticipated. .,
. e. An evaluation of the change which shows the expected maximum exposures to individuals in the unrestricted area and to the general population that differ from those previously estimated in the license application and amendments thereto; Discussion: Estimate of Exposure to Public from Shipments The annual volume shipped without3volume reduction (CNI solidification) = 18,044 ft -
This corresponds to approximately 30b18 044 = 60 containers
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Approximately 50% can be shipped unshielded, two liners per shipment. This yields a total of approximately 40 shipmects.
With volume reduction a t<>tal of 8 containers will be shipped. All shipments will be shielded, one liner per shipment.
The nu=ber of shipments will be reduced by 80%
with the HNDC system.
For purposes of estimating the effect on publie exposure, the following assumptions are made;
- 1. The unshielded shipnents result in negligible exposure.
- 2. The shielded shipments of solidified evaporator ,
bottoms will have dose rates of 1/2 the allowable limit.
- 3. The HNDC shipments will be shipped at the limit.
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Th2 d2sa rate limit is 10 mr/hr. at 6 fest. The exposure to the public is:
10 x P x h"d for the IC;DC shipments 5 x P x NC f:: the CNI ship:ents -
P = Public exposure hours -
NH = Number of IDiDC shipce:ts = 8 NC = Number of CNI shipments = 20 Total dose:
80P - HNDC shipments 100P - CNI shipments Although total public exposure is unknown, it is -
. estimated that public exposure vill be reduced -
,- by at least 20* by the reduced shipments.
It should also be noted that without the volume e reduction it is unlikely that all shipments could go to Barnwell due to the volume allocation program in South Carolina. This would result in shipments to Beaty, Nevada or These longdistanceshipm/Richland, Washington.
ents would increase the public exposure for the CNI shipments.
- f. A comparison of the predicted releases of radioactive materials, in liquid and gaseous effluents cud in solid waste, to the actual releases for the period prior to when the changes are to be made; Discussion: Evaluaton of Effect of Demineralirer System on Shipoint Volume 8D Actual Solid Wastes without Hitt=an (1 qtr.,
1981 for Unit 1).
9,418 ft3shipped with activity of 99 Curies.
Predicted Solid Wastes using Hittman (for Unit 1 -
same period).
5,181 ft.3 with activity of 60 Curies. "
Evaluation of Effect of Demiceralizer System on Liouid Effluents See item (d) (Offsite Liquid Releases).
Evaluation of Effect of Demineralizer System on Gaseous Effluents See item (d) (Offsite Gaseous Releases).
- g. An estimate of the exposure to plant operating personnel as a result of the change.
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Discussitn: Estimata of Exp: sura fren System Oparation It is assumed that a batch is the contents of one 5,000 gallon tank. Process rate is 25 gpm. This gives a batch process ti=e of 200 minutes. _
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.- tal Operational Step Time Dose Rate Lose
- 1. ' Check out process 15 min. 10 mr/hr. 2.5 or skid
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- 2. Pam process (from 200 min. 1 mr/hr. 3.5 mr remote panel)
- 3. Shutdown skid check- 15 min. 10 nr/hr. 2.5 nr
, out -
Total .
8.5 a,r.
For 50,000 gallon / month process,10 batch / month For annual exposure = 10 ** 8.5 12 "**
bat ,,
1020 millirem
/=r o 1.02 Man-Rem / year W*
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Estimate of Erpssure frem Vessel Chan;ecut i
Fo. Estimated Estimated Esti:ated 1 Operational Step Operators Time Dose Rate Total Dose
- 1. Open roof batches 2 60 min. 5 mr/hr. 10 r-
- 2. Rig old container for 1 30 min. 166 mr/hr. 83 =r
_. lifting ,
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- 3. Lift into solidification 1 30 min. 166 mr/hr. 83 ::
room
- 4. Remove rigging 1 30 min. 166 mr/hr. 83 =r .
- 5. Hook-up solidification 2 30 min. 166 mr/hr. 166 nr rig
- 6. Run solidification Rig 2 120 min. 5 mr/he. 20 =r
- 7. Remove solidificatlon Rig 2 30 min. 166 mr/hr. 166 nr
. 8. Install lid 2 15 min. 166 mr/hr. 83 nr
- 9. Install lifting rig 1 30 min. 166 mr/hr'. 33 cur
- 10. Lift and survey' 3 30 min. 166 mr/hr. 249 nr
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II. Load onto truck 2 30 min. 166 mr/hr.166 cr
- 12. Close shipping liner 2 120 min. 10 nr/hr. 40 cr -
- 13. Place new container 2 60 min. 10 mr/hr. 20 nr ,
system Total dose = 1252 millirem per container Annual total dose = 10.016 Man-Rem I
Steps 2-7 are for solidification only.
Total Steps 2-7 = 601 millirem Total dose without solidification = 651 millrem per container
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Annual total dose without solidification = 5.208 Man-Rem If only resin is solidified, carbon shipped dewatered:
Annual total dose = 7.612 12 l
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Estinsto cf Pr:sent Oonrator Exposure Waste Evaporator Operation 7.6 Man-Rem / tear Solidification System Operation 4.3 Man-Rem / year One-Unit Total = 11.9 -
Two-Unit Total = 23.8 Mac-Re:/ year,
_ Man-Rem Summarv Present System = 23.8 Man-Re=/ year ENDC (No Solidification) 5.208 + 0.84 = 6.048 Man-Rem / year
. HNDC (Resin Solidifications 7.612 + 0.84 = 8.452 Man-Rem / year HND (100% Solidification) 10.016 + 0.84 =10.856 Man-Rem / year
- h. Documentation of the fact that the change was reviewed and found acceptable by the PORC. -
Discussion: The Safety Evaluation for PCN 80-893 was approved by the Plant Operations Rev'iew Cocmittee on 12/22/80.
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OPERATING DATA REPORT C DOCKET NO. 50-348 DATE 4/1/o1 COMPLETED BY W. G. Hairston, II TELEPHONE uou:ss-3156 OPERATING g*aTt:S,
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- 1. Unit Name: Joseoh M. Farlev - Unit 1 Notes 1) Cu=ulative data
-. 2. Reporting Period: March, 1981 since 12/1/77, date of
- 3. LicensedThermalPcwer(MWt):
2652 co==ercial operation. -
- 4. Nameplate Rating (Gross MWe): 860 -
- 5. Design E!actrical Rating (Net MWe): 829 --
l 6. Maximma Dependable Capacity (Gross MWe): 844.6 803.6
, 7. Maximum Dependable Capacity (Net MWe):
- 8. If Changes Occurin Capacity Ratings (!tems Number 3 Through 7) Since Lut Report.Give Reasonsr N/A '
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- 9. Power Level To Which Restricted,If Any (Net MWe): N/A
- 10. Reasons For Restrie: ions,if Any: N/A i
This Month Yr.-to-Date .' Cumulative
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!!. Hours in Reporting Period ' 744 --
2160 29,208
- 12. Number Of Hours Reactor Was Critical 104.5 104.5 17,286.8
- 13. Reactor Rewzve Shutdown Hours 184.& 183.4 2,630.2
- 14. Hours Generator On-Line 16,703.4
- 15. Unic Reserve Shutdown Heurs - 16. Gross Thermal Energy Generated (MWif) 41. 989.891.8
' - 13,419,408
- 17. Gross Electrical Energy Generated (MWH) ___,
- _ 18. Net Electrical Energy Generated (MWH) -15,842 -23.946 12,583.804
- 19. Unit Service Factor 00.0 00.0 57.2
- 20. Unit Availability Factor . 00.0 00.0 57.2
- 21. Unit Capacity Factor (Using MDC Net) . -02.6 -01.4 _
53.6 I 22. Unit Capacity Factor (Using DER Net) -02.6 -01.3 _
52.0
- 23. Unit Forced Outage Rate .
100.0 100.0 07 7 *r
- 24. Shutdowns Scheduled Over Next 6 Months (Type, Date.and Duration of Each):
N/A .
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- 25. If Shur Down At End Of Report Period. Estimated Date of Startup:
April 5, 1981 ,
- 26. Units in Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY.-. . ., 8/6/77 8/9/77 INITIAL ELECTRICITY ., 8/20/77 8/18/77 COMMERCIAL OPERATION : 12/1/77 12/1/77 P00R ORIGINAL -
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DNIZ 'll/81 CO.6D SY "* O' E*1#8C "' III f Tn " HONE. (2^5' 199-5156 M reh, 1981 -
.- l 3!ONTH ,
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. 1 DAY AYERACE DA!!.Y POWER LEVII.
- DAY AVERAGE DAILY POWER LEVEI. .
(MWe Net) (MWe Na)
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g i i UNITSiluTDOWNS ANI)l'OWER REI)UC110NS I)OCKETNO. 50-348 UNIT NAnlE .1.H. l'Altl.EY-UNI,i' 1*
- 1) ATE 4/1/81 i ; .COMPl.ETED ny bl. G. Ita irs t on . )
ItEPOltT n10NTil MARCil.1981 .
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., TEl.ErilONE (205)899-5156
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!.icenscc Event =
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Cause & Consective Action lo l
b o.iE a: jisg Itcl met # di f0" Prevciil [tc5ussence O
i ,
001 810301 S 592.6 C 1 N/A , RC ZZZZZZ Unit outage continued from 2/28/81 for refueling.
- 002 . 810325 F 41.2 A 1 N/A CB INSTRU Unit manually shut down in Mode 2 to repair a leak on RCS B loop RTD by-
! . . pass manifold.
003 810327 F 34.3 A 2 N/A RB CRDRVE Unit manually tripped in Hodo 2 to re-i ? -
pair an open lift. coil cable on control rod K-14.
O Q 004 810328 F 24.7 C 3 N/A IIB ZZZZZZ Unit tripped in Mode 2 due to Lo-Lo
@ S/G level. '
i l C 005 810329 F 51.2 A 1 N/A IIB TURBIN. Unit manually shut down in Hode 2 duc !
- y ,
. to SCFP 1A failing overs.pced trip tout
! m---. .
m
, 2 .
l l3:= i l': l'orced 3 3 .
4 2
y- S: Sclicilulcil Reason:
A Equipment Failuso(Explain)
Methml:
l Manual Ibhible G Instancilons fo Pacpasalinn ofI)ata ll Malulenance niTeil 2 Mannal Scism. I'nley Slicen fo Ileensee C Itcfueling J Automatic Scrapi. s Event Itepos t (l.itit) l' ele INilit!'G-1)Itegulaimy Mcitilcilon 1 Onlius (limplain) 01hl)
E Operulos Training A IJcense finaminallon .
17 Ailminissentive , 3 *
. G Openallonal lisfor (l!xplain) lixhibil 1 Same Sousee l')/17) Il Othes (limplain)
J