ML20085M796

Staff Exhibit S-34,consisting of Rev 2 to Procedure 55038-C, Diesel Start Log

ML20085M796
Person / Time
Site:	Vogtle
Issue date:	05/16/1995
From:	GEORGIA POWER CO.
To:
References
OLA-3-S-034, OLA-3-S-34, NUDOCS 9506290341
Download: ML20085M796 (14)

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DIESEL START LOG .,

1.0 PURPOSE 1.1 The purpose of this procedure is to provide the tracking techanism required to evaluate the reliabili:.

of the Diesel Generator Unic". This procedure also will provide the feedback required to adjust testing intervals and the reporting mechanism to the required regulatory agencies which may be required when failures occur.

1.2 This procedure satisfies the following Technical Specifications: (

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Table 4.8-1 j

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Section 4.8.

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j 2.0 l PREREQUISITES OR INITIAL CONDITIO*iS i

, 2.1 A diesel star was initiated by cither automatic i

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} signal, including those from bona fide signals, or ,l 4

manual signals.

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2.2 Tests will be performed using procedure 14980-1, i

14985-1, 13145-1,14980-2,14985-2 or 13145-2 and ll i results shall be recorded. The results of the test shall be transmitted to the ESS for indepcadent review i and update of the Diesel Generator Log. ,

i 3.O DEFINITIONS l i

i I i 3.1 " FAILURE"

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The diesel does not start, accelerate and assur.e the design rated load within and for the time prescribed during an emergency or a valid test. '

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n'OtEOLof *do Revision paGE NO VEGP 55038-C 2 2 o f 14 3.2 " DIESEL CENERATOR UNIT" Consists of the following components: The engine, generator, combustion air system, cooling water system up to the supply, fuel supply syrte , lubricating oil system, starting er.crgy sources, autoarart controls, manual controls and the diesel generatot breaker.

3.3 " VALID TESTS AND FAILURES"

a. All start attempts (automatic, including those from bona fide signals, or manual) that result in a failure to start, except as noted in (2) below, should be considered valid tests and failures.

b. Unsuccessful reart and load attempts that can definitely be attributed to operating error, to spurious operation of a trip that is bypassed in the emergency operating mode, to malfunction of equipment that is not operative in the emergency operating mode (e.g. , synchronizing circuitry) or is not part of the defired diesel generator unit design should not be considered valid tests or failures.

. Successful starts, including those initiated by bona fide signals, followed by successful loading ,

(sequential or manual) to at least 50% of continuous rating and continued operation for at least one hour should be considered valid i successful tests.  ;

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d. Successful starts that are terminated  ;

intentionally without loading, as defined in (3)  :

above, should not be considered valid tests er  !

failures.

e. Successful starts followed by an unsuccessful ,

loading attem and failures,ptexceptshould asbe considered noted valid tests in (2) above. ,

f. Tests that are terminated intentionally before

completion as defined in (3) above because of an alarmed abnormal condition that would ultimately have resulted in diesel generator damage or >

failure should be considered valid tests and failures. .

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g. Tests perfor=ed in the process of trouble shooting should not be considered valid tests. Tests that are performed to verify correction of the problem should be considered valid tests and successes or I failures, as appropriate.

h. Cranking and ven:ing procedures that lead to the discovery of conditions (e.g., excessive ware: . - -

oil in a cylinder) that would have resulted in the failure of the diesel generator unit during test or during response to a bona fide signal should be considered a valid test and failure.

3.4 " UNAVAILABLE" l

A " Diesel Generator Unit" shall be considered  !

inoperable from the time of failure until it satisfies i the requirements of Procedure 14980-1. t 3.5 " TEST FREQUENCY"  !

l The required test period is determined by comparing '

information Tech Specs. given on Data Sheet I to Table 4.8-1 of the 4.0 INSTRUCTIONS FOR DIESEL GENERATOR START LOG (DATA SHEEI 1)

NOTE l

A separate Start Log shall be  !

maintained for each Diesel Generator  ;

4.1 RecordontseDieselGeneratorStart Information sheet i provided by the Operations Department and the Diesel l Generator Start Log the next sequential start number i from the engine log.

l 4.2 Record date of' start. ~

l 4.3 Review information provided from Operations and compare against definition of valid tests and failures given in j section 3.3 of this procedure to determine whether the j start constitudes a valid or invalid test and a success .

or failure. If determination is different than that given then differences must be resolved with the .-

l individual signing the Data Sheet.

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,,cg%c VEGP 55038-C 2 4 o f 14 4.4 ti e Record number of valid failures in last 20 valid tests for determination of test frequency per Figure 1 of +

this procedure and Table 4.8-1 of Tech Specs.

4.5' Record number of valid failures in last 100 valid tests  :

for determination af that frequency per Figure 1 of this procedure and table 4.8-1 of Tech Spec. and Reporting Requirements per section 4.8.1.1.3 of the Tech Specs.,

4.6 Record current test frequency by comparing number of i valid failures per 20 and 100 valid tests, as given ir previous columns to limits given in Figure 1. If tes:

frequency must be changed, notify NSAC by completing Data Sheet 4 and transmitting to NSAC Manager. i 4.7 Determine total time the Diesel Generator was run -

following a :partic alar sequential start and record on Diesel Generator Start Log.

4.8 Calculate the total Diesel Generator run time for the past 30 days.

4.9 Record total time the Diesel Generator was unavailable. [

4.10 Record name and date of person ' entering data.

4.11 Data Sheet 1, 2 and 3 should be' transmitted to Document  :

Control as deemed necessary by the Responsible Engineer. i f

l' 5.0 INSTRUCTIONS FOR DIESEL GENERATORS CUMULATIVE OPT. RATING 1 DAIA (DATA SHEET 2) .'

NOTE Cumulative operating data of

! both Diesel Generators is to j be reviewed and compiled

! periodically (every eighteen  :

! months) and documented on Data -

i Sheat 2 by the responsible

{ Engineer.

• 5.1 Record the calendar period for which the review covers.  ;

5.2 Record ths' Sequential Start Numbers for the calendar i j period covered.  !'

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5.3 Review all Diesel Generator Start Information Sheets for the calendar period covered to determine the total number of starts, number of. auto starts from either BUS UV or LOCA and number of manual starts.

5.4 From Diesel Generator Start Information Sheets and Data Sheet 1 of this procedure determine the total number of '

Valid Tests, total number of failures (Valid and Invalid) and total number of valid failures for the  !

calendar period covered.

5.5 From Diesel Generator Start Information Sheets, determine the number of failures attributed to operator error, other human error and equipment failures. Also l record number o 'f failures which occurred during surveillance testing, maintenance testing, during actual demand (LOCA or BUS UV) or other runs for the calendar period covered.

5.6 From Procedure 11885-1 or 11885-2 determine for the time period covered the total Engine Run Time at no  !

load, O to 25% load, 25 to 50I load, 50 to 75% l load, 75 to 100% load and 100% load. -

5.7 From Data Sheet 3 of procedure 14980-1 or 14980-2 Data Sheet 1 of this procedure and other sources (e.g.

Operator's Log), record all time the Diesel Generator was unavailable.

5.8 Record current Total Run Time from the Engine Hourr. 2ter i at the Local E6gine Control Panel.

5.9 From Diesel Ceperator Start Information Sheets for the calendar period covered, determine if there were any repeat failure. mechanisms, repeat human errors or com=on mode failures. If there were any, give details in comments section. Attach additional pages, if  !

necessary. .

3 5.10 Person performing review is to enter his name and the i 4

date. ,

I 6.0 INSTRUCTIONS FOR DI'ESEL CENERATOR FAILURE DOCUMENTATION  :

SHEET i

NOTE All Diesel Generator Unit 4 failures, valid or invalid are .

. to ba documented on Data Sheet 3.

. This documentation may be used to shpplecent reporting requjre=ents.

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VEGP 55038-C 2 6 of le 4

6.1 Identify the Diesel Generator unit involved. .

6.2 Record the Sequential Start Number on which the failure I occurred. ,

6.3 From determination maie on Diesel Generator Start  :

Information Sheet, indicate if the start was a valid l

\ test. l l 6.4 Identify failure as the failure in the last 100 valid tests from Data Sheet 1.

l l 6.5 Describe the cause of the failure.  !

I 6.6 Describe corrective measures taken. .

3 6.7 I'ndicate length of time the Diesel Generator Unit was l unavailable.

6.8 Indicate the current Test Surveillance Interval from Data Sheet 1.

6.9 Verify that the$ test interval is in conformance with Table 4.8-1 of the Tech Spec.

6.10 If additional failures were experienced during troubleshooting of the subject failure, complete Data l Sheet 3 for each of the troubleshooting failures.

NOTE The 16 formation required by the following steps is required only when the nu=ber of failures in the last 100 valid tests is seven or more.

6.11 Describe corrective measures taken or planned to increasereliab{lityoftheDieselGenerators.

6.12 Provide an asse$ scent of the existing reliability of electric power to ESF equipment.

6.13 Provide basis for continued plant operation, if that is planned.

6.14 Attach a copy of Data Sheet 3 of Procedure 14980-1 or 2 l and Data Sheet 1 of this procedure that document all starts that occurred within the time pariod over which the last 100 Valid Tests were performed and verifies that surveillance testing during the period was in j l

conformance with Table 4.8-1 of the Tech Spec. i l

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VECP 55038-C 2 7 of la h

6.15 The person' completing Data Sheet 3 is to enter his name and the dater

7.0 REPORTING

I; 7.1 FAILURES

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7.1.1 All diesel generator failures, valid or nonvalid, shall be reported to the NRC in a Special Report submitted to the Regional Administrator of Region 2 within thirty days. Reports of diesel generator failures shall i include the information contained on Data Sheet 3.

j 7.1.2 Transmit information in 5.1.1 to Nuclear Safety & i i

compliance. ,

4 7.2 ENVIRONMENTAL REPORTS i t

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7.2.1 If the diesel generator is operated more than 120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br />  ;

per year, Nuclear Safety & Compliance shall be notified. ,

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REFERENCES:

i 8.1 TECHNICALSPEChICATION p ,

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8.1.1 TechnicalSpec{ficationSection4.8.1.1.3.

8.1.2 Technical Speci.fication Table 4.8-1 1

8.2 PROCEDURES 8.2.1 00404-C, " Surveillance Test Program" l

8.2.2 00150-C, "Deffeiency Control" i

8.2.3 14980, " Diesel Generator Operability Test"

" Dies lel Generator Interdependence Test"

, 8.2.4 14985, L a i 8.2.5 13145 "Diedel Generators" 11885-C, 8.2.6 ,

"D(e:Ie1 t Generator Operating Log" 8.3 OTHER .

8.3.1 Reg. Guide 1.108 I

8.3.2 Letter from W. f. Woodall Dated February 2,1987 8.3.3 Letter to T.E. 'Byerley dated December 22, 1981 l END OF PROCEDURE TEXT ,

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VEGP 55038-C 2 8 of 14 ,

FIGURE 1 ,

DIESEL GENERATOR TEST SCHEDULE

. . L 9 Number of Failures Number of Failures  ; in last 100 Valid -

in Last 20 Valid Tests

• Tests * . Test Frequency 1 4 Once Fer 31 Days f f .

1. 7 Days 2** l 5 Once Per See definition of VALID TESTS & FAILURES.

For the purposes of determining the required test frequency, the previous test failure count may be reduced to zero if a complete diesel overhaul to like-new condition is completed, provided that the overhaul, including appropriate post-maintenance operation and testing, is specifically approved by the manufacturer and if acceptable reliability has been demonstrated.- The reliability criteria shall be the successful completion of 14 consecutive tests in a single series. Ten of these tests shall be in accordance with the routine Surveillance requirements specified in procedure 14980-1 and four tests in accordance with the 6 month (184-day) testing requirement specified in procedure 14980-1. If this criteria is not satisfied during the first series of tests, any alternative criterion to be used to transvalue the failure count to zero requires NRC approval.

The associated test frequency shall be maintained until seven (7) consecutive failure free demands have been performed and the number of failures in the last 20 valid demands has been reduced to one (1).

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I DATA SHEET 2 PAGE OF Il I DC TRAIN l 1

UNIT ,

DIESEL CENERATORS CUMULATIVE OPERATINC DATA 4

STEP OPERATING DhTA TRAIN A 'i l:A : B i lI Period Covered: Fros (Date) _

5.1 To (Date) l Starts Covered: Fros (Sequential Start No.) ,__ i 5.2 ,

To (Sequential Start No.) I Total Starts , ,,  !

Total Au6o Starts (LOCA) 5.3 Te.a1 Auto,!6.ces (BUV) ,

Totalyc Starts l

Totai Va,81d Tests 5.4 Total Failures (Valid and Invalid)

Total Valid Failures Failures Attributed to Operator Error Failures attributed to other Human Error 5.5 Equipment Tailures- -

Faf1tres occurring during Surveillance Testing Failures occurring during Maintenance Testing Failures occurring during Actual Demand i

Failures occurring during all other runs Total Run Time at No Load Total Run Time at 0 25! load  ;

50% lead 5.6 Total Run Time at 25  ;

i focal Run Time at 50 752 load _

Total Run Time at 75 100% load Total Run Time at 1002 load 5.7 Total Time Engine Unavailable i

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UNIT I l DIESEL CENERATORS CI;MULATIVE OPERATINC DATA '

.I STEP OPERATING DATA TRAIN A TPAIN B 5.8 Current Engine Rourmeter reading Repeat Tailure Mechanism (Yes, No) 5.9 Repeat Numan Errors (Yes. No)

Co:mnen Mode Tailures (Yes. No)

Com:ne n t s : _

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DATA SHEET 3 PAGF, OF DIESEL CENERATOR FAILUF,., DO_CLHENTATION SHEET Co=;,lete For All Diesel Generator Failures 6.1 Diesel Cenerator E

6.2 Sequential Start Number f

6.3 Valid Test (Yes, No):

6.4 Failure in last 100 Valid Tests:

6.5 Cause of Failure:

I 6.6 Corrective Measure Taken: .

A.7 Length of Time Diesel Generator Unavailable:

6.8 Current Surveillance Test Interval:

6.9 Test Interval in Conformance with Table 4.8-1 of Tech Specs.?

6.10 Data Sheet 3 completed for each failure during troubleshooting?

If Failure is 7 in last 100 V11dd Test 6.!! Corrective measures, taken or planned, to increase reliability of the Diesel Cenerator: l l

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$ l DATA SHEET 3 (CONT'D) PAGE OF i L i

DIESEL GENERATOR FAILURE DOCLTENTATION SHE.]

I If Failure is 7 in last 100 Valid Test l 6.12 - Assessment of existing reliability Electrical Power to ESF l equipment:

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6.14 Data Sheets attached documenting lait 100/ Valid Tests?

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DATA SHEET 4 TO: NSAC MANAGER ,

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SUBJECT:

DIESEL CENERATOR TEST FREQUDCT I

I DIESEL CENERATOR l

DIESEL GENT.PMOR TEST FREQUINCY SHOULD BE CHAN ED TO :

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