ML19343B962

Monthly Operating Rept for Jan 1981

ML19343B962
Person / Time
Site:	La Crosse File:Dairyland Power Cooperative icon.png
Issue date:	02/09/1981
From:	Goodman L DAIRYLAND POWER COOPERATIVE
To:
Shared Package
ML19343B961	List: ML19343B960 ML19343B962
References
NUDOCS 8102180387
Download: ML19343B962 (11)

Text

,

OPERATING DATA REPORT

~

DOCKET NO. 50-409 DATE 02-09-81 COMPLETED BY T. 9 GOODMAN TELEPHONE 608-689-2331 OPERATING STATUS Notes

1. Unit Name: LA cuocer unT?.TMa wamen nvarmnn 0000, 01-01-81 TO 2400, 01-31-81_

2. Reporting Period:

165

3. Licensed Thermal Power (MWt):

65.3

4. Nameplate Rating (Gross MWe):

50

5. Design Electrical Rating (Net MWe):

EO

6. Maximum Dependable Capacity (Gross MWe):

48

7. Maximum Dependable Capacity (Net MWe):

8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report.Give Reasons:

9. Power Level To Which Restricted. If Any (Net MWe):

10. Reasons For Restrictions. If Any:

This Month Yr.-to.Date Cumulative

11. Hours in Reporting Period 744 744 98.643 120.8 120.8 64.217.8

12. Number Of Hours Reactor Was Critical 0

0 478

13. Reactor Reserve Shutdown Hours 0

0 59.031.3

14. Hours Generator On.Line 0

0 79

15. Unit Rewrve Shutdown Hours 539.5 539.5 8.084.876.9

16. Gross Thermal Energy Generated (MWH) 0

, _, 0 2.430.63S

17. Gross Electrical Energy Generated (MWH)

-594

-594 2,246,686

18. Net Electrical Energy Generated (MWH) 0 0

59.8

19. Unit Service Factor 0

0 59.9

20. Unit Availability Factor

21. Urm Capacity Factor (Using MDC Net).

0 0

47 g 0

0 d5.6

22. Unit Capacity Factor (Using DER Net) 0 0

7.1

23. Unit Forced Outage Rate

24. Shutdowns Scheduled Over Next 6 Months (Type. Date, and Duration of Each t:

NONE FEBRUARY 1. 1981

25. If Shut Down At End Of Report Period Estimated Date of Startup:

26. Units in Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

(" m i 8102180 %

l INSTRUCTIONS FOR COMPLETING OPERATING DATA REPORT This report should be furnished each month by licensees. The name and telephone number of the preparer should be provided m the designated spaces. The instructions below are provided to assis: licensees in reporting the data consistently. The number of the mstruction corresponds to the stem number of the report format.

1. UNIT NAME. Self<xplanatory, or of commercial operanon, whichever comes last, to the end of the penod or decommissionmg. whichever comes

2. REPORTING PERIOD. Designate the month for which first. Adjustments in elock hours should be made in the data are presented.

which a change from standard to da)T.t savings time f or vice versa) occurs.

3. LICENSED THERMAL POWER (MW:)is the maximum thermal power, expressed m megawatts, currently auth.

12. NUMBER OF HOURS REACTOR WAS CRITICAL.

on/ed by the Nuclear Regulatory Commission.

Show the total number of hours the reactor was entica!

.t. NASTPLATE RATING (GROSS MW,). The nameplate powel designation of the turbine. generator in megavolt

13. REACTOR RESERVE SHUTDOWN HOURS. The total ampers s (MVA) times the nameplate power factor of the number of hours durmg the gross hours of reporting turbine generator.

penod that the reactor was removed from service for admimstratise or other reasons but was available for

5. DESIGN ELECTRICAL RATING INET MW,) is the operation.

nommal net electrical output of the unit specified by the utihty and used for the purpose of plant design.

14. IlOURS GENERATOR ON LINE. Also called Service Hours. The total number of hours expressed to the near-

e. M AXIMUM DEPENDABLE CAPACITY (GROSS MW,)

is the gross electncal output as measured at the output est tenth of an hour dunng the gross hours of the re-porting period that the unit operated with breakers termmais of the turbine. generator during the most re-closed to the station bus. These hours, plus those listed stnetive seasonal conditions.

m Unit Shutdowns for the generator outage hours, shoGd

7. MAXIMUM DEPENDABLE CAPACITY (NET MW,).

Maximum dependable espacity (gross) less the normal

15. UNIT RESERVE SHUTDO'WN HOURS. The total num-station serviceloads.

ber of hours expressed to the nearest tenth of an hour

8. Self4xplanatory.

dunng the gross hours of the reporting period that the unit was remosed from service for economic or similar reas ns

• 'avada e r Peradon.

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MW ).

Note that tius item is applicable only if e

16. GROSS THERMAL ENERGY GENERATED (MWH).

restrictions on the power level are m effect. Short term dess than one month) hmatations on power level need The thermal output of the nuclear steam suppiy system not be presented in this item.

during the gross hours of the reporting period, expressed irt megawatt hours (no dectmals).

Since this information is used to deselop figures on capa-city lost due to restrictions and because most users of the

17. GROSS ELECTRICAL ENERGY GENERATED (MWH).

" Operating Plant Status Report" are primarily interested The electrical outpet of the unit measured at the output m energy actually fed to the distnbution system it is terminals of the turbine-generator during the gross hours requested that this figure be expressed m MWe Net in of the reportmg penod, expressed in megawatt hours (no spite of the fact that the figure must be derived from decimals h MWt or percent power.

18. NET ELECTRICAL ENERGY GENERATED (MWHh

10. REASONS FOR RESTRICTIONS. IF ANY. If item 9 The gross electneal output of the unit measuH at the is used. Item 10 should explain why. Bnef narrative is output termmals of the turbine. generator minus the nor-acceptable. Cite references as appropnate. Indicate mal station scruce loads dunng the gross hours of the whether restnctions are selfamposed or are reputatory reportmg penod. etpressed m megawatt hours. Negative requirements. Be as specific as possible withm space hm -

quantities should not be used. If there is no net positive tatmns. Pl.mts in startup and power ascension test phase value for the penod. enter zero d no decimals).

should be identified here.

!!. IlOURS IN REPORTING PERIOD. For umts m power 19 f"r umts still m the startup and power assension test ascensmn at the end of the renod. the gross hours f rom

23. phase. items 19 23 should not be computed instead. enter the begmmng of the penod or the first elestrh.al produs.

N A m the surrent month column. These tive tactors tion. 4 hisheser somes last. to the end et the penod.

should be somputed stattme at the time the umt a de.

Jared be m sommersiai operanon The sumulatne o

l

'l Units In statninefstal s'Pelatiotl at t he e tid tot the figmes :p the se,.> tid aid thod,,ohppgn sheruId De hecd n ood. the com how o-t h buouw a % netJ on e r* t wi mran. " n w nie d o.-

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50-409 IMM'KET NO.

UNIT SHUlllOWNS AND POWER REDUC 110NS UNIT N AME

.ACBWR

' J# ~ U'#- D I D41E JANUARY 1981 COMPLE1ED NY GOODMAN 689*2331 REPORT MON 1H IELEPHONE E

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$3 3

-$E5 I itenwt

, e, E *1, Cauw A Centesteve E

No.

Dale g

3g j

j; ] cE Event g7 3

Atison de Repine a mO o'

Picten Retuesenic fI d

5 53 F

c t

u s.

6 80-12 80-11-09 S

744 C

2 NA NA NA CONTINUATION OF REFUELING OUTAGE I

2 3

4 f: finted Heavun '

Method:

Exhibit G. Insuusinuis S Silieduled A-1quipenent Failure (Lxplain) 1 Manual for Psepasan m of Dai.

H.Maintenante or Test 2 Manual Scram.

1 nio Sheces fin I scenwe C Refueling 1 Automatic Stram.

Event Rep.ni t1.1 Ril'ile int'HI G.

D-Regulatory Resisicinin 4 Othe:11 splaml 0161) 1 Operatin Isainmg A lictiw l mamination F Adnunisisative 5

G-Operattimal I sin It'.xplam)

INintas I. Same S..uscc 19/77) ll Othee llisplain)

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UNIT SHUTD0%NS AND POhER REDUCTIONS INSTRUCTIONS This report should dessnbe all plant shutdo*ns durmg the m accordance with the table appearmg on the report form.

report penod. In addition,it should be the source of explan-If category 4 must be used supply brief comments.

a ation of mmficant dips m average power levels. Each signi.

ficant reducuon m power level (greater than 20"t reduction LICENSEE EVENT REPORT :e.

Reference the appbcable m average daily power level for the precedmg 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) reportable occurrence pertammg to the outage or power should be noted, even though the umt may not have been reduction. Enter the first four parts (event year, sequential 3

shut down completely. For such reductions in power level, report number. occurrence code ar d repor type) of the five the duration should be bsted as tero, the method of reduction part designation as described in Item 17 of Instructions for should be hsted as 4 (Other), and the Cause and Corrective Preparation of Data Entry Sheets for Licensee Event Report Action to Prevent Recurrence column should explam. The (LER) File (NUREG-0161). This information may not be Cause and Corrective Action to Prevent Recurrence column immediately evident for all such shutdowns, of course, since should be used to provide any needed explanation to (c.lly further investigation may be required to ascertam whether or desenbe the circumstances of the outage or power redoction.

not a reportable occurrence was involved.) If the outage or power reduction will not result in a reportable occurrence.

NUMBER This column should mdwate the sequential num-the positive indication of this lack of correlation should be ber assigned to eseh shutdown or sigmficant reduction m power noted as not applicable (N/A).

for that calendar year. When a shutdown or sigmficant power SYSTEM CODE. The system m wiuch the outage or pow, reduction begms m one report penod and ends in another, gg an entry should be made for both report periods to be sure all shutdowns or sigmficant power reductions are reported, G hwh 6 Pmm M h W h Unid a unit has achieved its first power generation, no num-for Licensee Event Report (LER) File (NUREG4161).

ber should be assigned to each entr).

Systems that do not fit iny existing code should be designa-ted XX. The code ZZ should be used for those events where DATE. This column should mdwate the date of the start a system is not applicable.

of each shutdown or sigmGeant power reduction. Report as year. month, and day. August 14.1977 would be reported COMPONENT CODE. Select the most appropriate component as 770814. When a shutdown or significant power reduction from Exhibit ! Instructions for Preparation of Data Entry I

begms m one report period and ends m another, an entry should Sheets for Licensee Event Report (LER) File (NUREG 0161).

made for both report periods to be sure all shutdowns usmg the follow 1ng critieriaf or sigmlicant power reductions are reported.

TYPE. Use "F" or "S" to indicate either " Forced" or " Sche-duled." respectively, for each shutdown or significant power B.

If not a component failure, use the related component:

reduction. Forced shutdowns mclude those required to be e.g.. wrong valve operated through error; list valve as uutiated by no later than the weekend following discovery component.

of an of f. normal condition. It is recognized that some judg.

ment is required in categorizmg shutdowns in this way, in C.

If a chain of failures occurs, the first component to mal-p-

al, a forced shutdown is one that would not have been function should be listed. The sequence of events,includ.

..pleted m the absence of the condition for which corrective ing the other components which fail, should be desenbed action was taken.

under the Cause and Corrective Action to Prevent Recur-rence column.

4 DURATION. Self. explanatory. When a shutdown extends Components that do not fit any existing code should be de-beyond the end of a report period, count only the time to the signr.ted XXXXXX. The code ZZZZZZ should be used for l

end of the report penod and pick up the ensuing down time m the followmg report penods. Report duration of outages events where a component designation is not apphcable.

rounded to the nearest tenth of an hour to facilitate summation.

CAUSE & CORRECTIVE ACTION TO PREVENT RECUR-The sum ot the total outage hours plus the hours the genera.

RENCE. Use the column in a narrative fasluon to amphfy or tot was on hne should equal the gross hours in the reportmg explam the circumstances of the shutdown or power reduction.

i pe ed-The column should include the specific cause for each shut.

down or significant power reduction and the immediate and REASON Categonze 53 letter Je>ignanon m accordance contemplated long term corrective action taken. if appropn-with 11. table appearmg on the report form. If category 11 must be used, supply bries comments' are. This column should also be used for a description of the maior safety-related corrective maintenance performed dunng METHOD OF SHUTTi%; D0%N THE REACTOR OR the outage or power reduction including an identification ot; REDUCING POWER. Cateeonie by number designation the erineal path aetmty and a report of any smgle release et radioactmty or smgle radiation exposure specifiesl1y associ.

i INote that ihn Mters f rom the Edison Electric Institute ated with the outage which accounts for more than 10 percent tEEI) detimnons ot " Forced Partial Outace" and " Sche, of the allowable annual values.

duled Paitial Outage " For these terms. Il I uses a.hange or For long textual reports continue narrative on separate paper l

30 MW a> the break romt. For laree power reactors.30 MW and reference the shutdown or power redu, tion toe this n i.u smal! a shange to wanant espiananon, narrative.

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l AVERAGE DAILY UNIT POWER LEVEL 50-409 DOCKET NO.

LACBWR L%DT 02-09-81 DATE L.S.GOOOMAN COMPLEno ay 008~089-2331 TELEPHONE 1

JANUARY, 1981

. f 0Nnt s

DAY AVER AGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL iMWe-Net)

(MWe-Net) 0 1

37 0

2 0

is 0

0 3

39 0

0 0

4

o 0

5 23 0

0 0

22 6

O 0

23 0

g 0

24 0

0 9

25 0

26 0

10 0

11 0

27 12 0

0 28 0

13 0

29 0

34 0

3a 0

15 0

3 is 0

INSTRUCTIONS On this format, tist the average daily unit power levelin MWe Net for each day in the reporting month. Compute to the neaiest wh@ megawatt.

49/77)

d NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE yANUARY1981 At the enset of the January 1981 repcrting period, the plant was shut down for its scheduled refueling cutage.

On January II,1981, at 0041, the reacter was cken critical.

On January lith and 13th, training and ccerator licensino criticals were cerformed.

At 2148 en January 15th, the reactor was taken critical, but at Caa2 en January 16th, the reactor autcratically shet dcwn due to a scurious high flux signal en Nuclear Instrurentatien Channel No. 6.

At 0543, the reactor was re-turned te critical, but at 1557, the reacter scrarred due to hich flux en NI Channel No. 5.

The reactor was returned to critical at 2321 and a slew heatuo ccmrenced.

At 2145 en January 17th, the reactor was shut down due to excessive vibratien en the IB Forced Circulation Puro (FCP) roter. The reactor was taken critical at 1803 on January 28th, after repair of the IB FCP hydraulic coupling and bearings. A slew primary system heatup and pcwer escalatien then correnced.

At 0250 en January 31, a pcwer reduction ccrrenced fren approximately 20t Reactor Rated Therral Power, due to hydraulic seal leakage from the Main Steam Bypass Valve Operator. The reactor was maintained critical while repairs were accerplished. After the replacement of the valve operatcr seals, pcwer escalation was resumed.

At 1712 on January 31, the reactor scrarred due to high flux en the wide range nuclear instrurentatien. The reactor was returned to critical at 1811 and 21% Reactor Rated Therral Pcwer was achieved by 2400, which marked the end of the January reporting period.

Significant maintenance items performed during the January 1981 reporting period are indicated on the attached Instrurent and Electrical Maintenance and Mechanical Maintenance listings.

JANUARY 1981 INSTRUMffli AND ftFCTRICAL MAINTENANCE Pg. 1 of 3 LER OR flATURE OF OUTAGE MALFUNCT10ft EQUIPMENT MAINTENfshCE

f. UMBER CAUSE RESULT CORRECTIVE ACTION SECURITY SYSTEM CARD CORRECTIVE OUTAGE UNKf!0VN NO ENTRY ADJUSTED SENSITIVITY ON READER 33 MR 0309 80-12 READER SECURITY SYSTEM HANDI-CORRECTIVE UNKNOWN P00R RECEPTION RADIO DEPARTMENT RE-TALK!E MR 0314 PAIRED UNIT SECURITY SYSTEM MICRO-CORRECTIVE UNKNOWN ALARMING NO MALFUNCTION FOUND; WAVE S-20 MR 0327 WORKS OK THIS DATE SECURITY SYSTEM ALARM CORRECTIVE UNKNOWN ALARMING NO MALFUNCTION FOUND; UNIT AP48 MR 0339 WORKS OK THIS DATE SECURITY SYSTEM E-FIELD CORRECTIVE UNKNOWN ALARMING ADJUSTED ALARM UNIT 19-1 MR 0352 BALANCE SECURITY SYSTEM ALARM CORRECTIVE UNKNOWN ALARMING REPLACED 8 ZONE ALARM BOARD 25-7 MR 0376 BOARD SECURITY SYSTEM ALARM CORRECTIVE UNKNOWN ALARMING REPLACED 8 ZONE ALARM BOARD 47, 48, 3 MR 0392 BOARD SECURITY SYSTEM D00R CORRECTIVE UNKNOWN ALARMING INSTALLED SHIELDED WIRE ALARM 48-S MR 409 RADIATION MONITORING FACILITY FC 45-80-1 INSTALLED HI RAD COMPLETED INSTALLATION FC-45-80-1 CHANGE MONITORS MR 0072 RADIATION MONITORING FACILITY FC 45-80-3 INSTALLED COMPLETED INSTALLATION FC-45-80-3 CHANGE SPING 4 NORMALllSAGE TIME METER REPLACED RUN TIME METER ENVIRONMENTAL MR 407 MONITORING INOPERATIVE LIQUID WASTE MONITOR MR 411 UNKNOWN LOW READING ADJUSTED CALIBRATION ISOLATOR RESERVE TRANSFORMER TAP FACILITY V0LTAGE STUDY TAP CHANGE COMPLETED CHANGE FROM TAP FC 74-80-4 CHANGE RE0UIRED B TO C MR 0333

JANUARY 1981 9'

INSTRUFNT A?!D 01 FCTRICAL MAINTENANCE LER OR NATURE Of OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NilMBER CAUSE RESULT CORRECTIVE ACTION IB FORCED CIRCULATION CORRECTIVE OUTAGE NORMAL USAGE POSITION INDICATOR REPLACED POSITION PUMP BYPASS VALVE MR 0388 80-12 INCORRECT POTENTIOMETER POSITION INDICATOR CRD OIL RESERVOIR ALARM CORRECTIVE UNKNOWN LEVEL ALARM T00 READJUSTED FLOAT MR 0377 LOW CONTROL LINKAGE MSIV FULLY SEATED ALARM CORRECTIVE NORMAL USAGE TWITCHINOPER-REPLACED SWITCH SWITCH MR 401 ATIVE NUCLEAR CHANNEL N-1 CORRECTIVE NORMAL USAGE PERIOD SET REPLACED PERIOD SET UNSTABLE POTENTIOMETER CONTROL SWITCH FOR CORRECTIVE T00 MUCH FORCE SWITCH STOP PIN REPLACED SWITCH FACE BREAKER 25NB-1 MR 0421 BROKEN PLATE AND STOP PIN FORCED CIRCULATION PUMP PREVENTIVE NORMAL USAGE -

PREVENTIVE REPLACED UPPER AND LOWER 1B MOTOR BEARINGS MR 383 MAINTENANCE (PM)

MOTOR BEARINGS MR 391 DUE ICE WOULD NOT CLOSE MEllED ICE MAIN TRANSFORMER AIR CORRECTIVE BREAK SWITQH 25NA1 MR 374 LER 81-01 COMPLETELY

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JANUARY 1981 i

til:CIIAt!IrAT. f1AINTictlAt ct:

Pg.1 of 2 iEp UP fiATURE Of PUTACI ularuntilnN EQUIPMENT MAINTENANCF r.uttl U C AU'.E RESULT CORRECTIVE ACTION 4* VENT VALVE #55-25-003 CORRECTIVE OUTAGE SEAT ERODED LEAKED DURING CHANGED LOCATIONS AND FC 55-80-4 MR 0275 80-12 TYPE A TEST USED A JAMESBURY BALL LER 80-17 VALVE AND OPERATOR RESIN TRAPS #63-20-001, CORRECTIVE OUTAGE PARTLY PLUGGED WOULD NOT ALLOV REMOVED AND LLEANED 002 AND 003 MR 0345 80-12 FULL WATER FLOW REACTOR EXHAUST VENT PREVENTIVE OUTAGE NRC C0f91ITMENT N's REPLACED 0-RING, SEALS ACTUATORS MR 0251 80-12 AND GASKETS FC 73-80-2 CONDENSATE DEMINERALIZER CORRECTIVE OUTAGE TEE BROKEN WATER PUNNING ON REPLACED TEE, VALVE VALVE #63-24-028 MR 1827 80-12 FLOOR BODY AND PIPING LOWER CONTROL R0D DRIVE CORRECTIVE OUTAGE PISTON TEFLON-N2 LEAK PERFORMED ALL PREVENTIVE (LCRD) FRAME #19 MR 0328 80-12 BRONZE RING HAD MAINTENANCE CHECKS VEE CllT JOINT FEEDWATER CHECK VALVE CORRECTIVE OUTAGE TEFLON IN DISC LEAKED DURING SENT TO FACTORY AND HAD

1. 65-26-001 MR 0370 80-12 WAS WORN OUT TYPE A TEST TEFLON REPLACED LCRD FRAME NOS. 7, 12, 14, CORRECTIVE OUTAGE NEW PACKING LEAKED OIL AROUND TIGHTEifDTACYING

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15, 22, 27, 20 AND 28 MR 0378 80-12 STEM AND PACKING FOLLOWER LCRD FRAME #4 CORRECTIVE OUTAGE NEW PACKING EXCESSIVE OIL LEAK REPLACED PACKING AND MR 0385 80-12 TESTED IB FORCED CIRCULATION CORRECTIVE OUTAGE SHAFT SEAL DISC CAUSED COUPLING WELDED NEW SHAFT SEAL DISC PUMP MR 0391 80-12 WORKED LOOSE AND WEAR AND BECAME AND INSTALLED NEW COUPLING WEDGED BETWEEN UNBALANCED HALVES, BEARINGS AND SEALS COUPLING HALVES IN LOWER DRIVE UNIT CONDENSATE MAKEUP SUPPLY CORRECTIVE OUTAGE BODY SEAT THREADS LEAKED THROUGH CUT VALVE OUT AND REPLACED BYPASS VALVE 90-24-039 MR 0408 80-12 WERE ERODED OUT WITH NEW t

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19. UNIT SERVICE FACTOR. Compute by dindmg hours the generator was on line (item 14) by the poss hours in the reportmg period (item II). Express as persent to the nearest tenth of a percent. Do not include reserve shut.

duwn hours m the calculation.

20. UNIT AVAILABILITY FACTOR. Compute by dividing the unit available hours (item 14 plus item 15) by the gross hours in the reporting penod (item II). Express g9 g,

q Dl as percent to the nearest tenth of a percent.

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21. UNIT CAPACITY FACTOR (USLNG 31DC NETL Com-pute by dividing net electneal energy generated (item IS) by the product of maximum dependable espacity tirem

7) times the gross hours in the reporting period (item i! L Express as percent to the nearest tenth cf a percent.

22. UNIT CAPACITY FACTOR IUSING DER NET). Com-pure as in item 21. substituting design eleetneal ratmg titem 5) for maximum dependable capsesty.

23. UNIT FORCED OUTAGE RATE. Compute by dmding the total forced outage hours (from the table in Unit Shutdowns and Power Reductionst by the sum of hours generator on line (item 14) plus total forced outage hours (from the table in Unit Shutdowns and Power R. Juetions).

Express as percent to the nearest tenth of a percent.

24. SHUTDOWNS SCHEDULED OVER NEXT 6 SiONTHS 1 TYPE. DATE. AND DURATION OF EACH). Include type (refueling. mamtenance, other). proposed date of start of shutdown. and proposed length of shutdown.

It is recognized that shutdowns may be scheduled between reports and that this item may not be allinclusive. Be as accurate as possible as of the date the report is prepared.

This item is to be prepared each month and updated if 4 propriate until the actual shutdown occurs.

I

25. Self-explanatory.

i

26. Self. explanatory. Note. however, that this mformation l

is requested for all units in startup and power ascension test status and is not required for umts already m com-

{

mercial operation.

TEST STATUS is defined as that period fodarm mt-tial criticahty dunng which the unn is tested at gue.es, soely higher outputs eulmmatmg with operation at full power for a sustamed penud and completion of war-tanty tuns. Following this phne. the umt as generally conudered by the utikty to be availah!c for commeri.tal i

operation.

'l Date of CO\\l\\lERCitL OPERATION is defined as the date that the omt was detlared h3 the utihn owner to he.nailable for the regular production et elect ri,:t s.

inually related to the satistastory sompletion at.lua.'i-IhJt60t1 tests as 3}'eptred att the purshase cont a r arid to the awmmme pohues and pra,t:scs

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