ML20080T743

Forwards Revs to Inservice Testing Program for Pumps & Valves,Clarifying Previous Submittals

ML20080T743
Person / Time
Site:	North Anna
Issue date:	02/28/1984
From:	Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Harold Denton, John Miller Office of Nuclear Reactor Regulation
References
487E, NUDOCS 8403020042
Download: ML20080T743 (15)

Text

{{#Wiki_filter:_ _ _ _ f' N, ' VINGINIA ELucTxIc ann Pownu COMPANY HICIIMON D,VIstGINIA 20261 W.L.Sixwaar x[c)*,,$",',",",,, February.28, 1984 Mr. Harold R. Denton, Director Serial No. 487E Office of Nuclear Reactor Regulation N0/JHL:acm Attn: Mr. James R. Miller, Chief Docket Nos. 50-338 Operating Reactors Branch No. 3 50-339 -Division of Licensing License Nos. NPF-4 U. S. Nuclear Regulatory Commission NPF-7 Washington, D. C. 20555 Gentlemen: VIRGINIA ELECTRIC AND POWER COMPANY NOF N ANNA POWER STATION UNIT NOS. 1 AND 2 A. SERVICE TESTING OF PUMPS AND VALVES In' our letters dated October 5, 1983 (Serial No. 487B) and February 2, 1984 (Serial No. 487D), we transmitted revisions 1 and 2 to the North Anna Power Station, Unit Nos. I and 2 Inservice Testing Programs for Pumps and Valves. In several conversations with your Staff, during February,1984, clarification on portions of our pump program was requested. The enclosures to this letter clarify.our previous submittals and document our conversations with your Staff. Revisions within the enclosures are marked with a revision number of 03. Very truly yours, .br W. L. Stewart Enclosures cc: Mre James F. O'Reilly Regional Administrator Region II Mr. M. W. Branch NRC Resident Inspector North Anna Power Station eO 8403020042 840228 )k PDR ADOCK 05000338 P PDR i

7 p I REVISIONS TO Tile NORTH ANNA UNIT NO.1 PUMP INSERVICE TEST PROGRAM e .mr

I PUMP INSERVICE TEST PROGRAM 2.1 PROGRAM DEVELOPMENT PHILOSOPHY The North Anna Unit #1 Pump. Inservice Test Program has been developed to meet the requirements of 10 CFR 50, Section XI of the ASME Boiler and Pressure Vessel Code, Subsection IWP and Technical Specifications.-This Program has been designed to detect and evaluate significant hydraulic or mechanical changes in the operating parameters of vital pumps and to initiate corrective action when necessary. North Anna Unit #1 Technical Specification 4.0.5 requires " Inservice testing of ASME Code Class 1, 2 and 3 pumps shall be performed in accordance with Section XI of the ASME Boiler and Pressure Vessel Code and applicable addenda as required by 10 CFR 50, Section 50.55 a(g), except where specific written relief has been granted by the Commission pursuant to 10 CFR 50, Section 50.55 a(g)(6)(i)". 10 CFR 50, Section 50.55 a(g)(4)(iv) states " inservice examinatione of components may meet the requirements set forth in subsequent editions and addenda" of ASME Section XI that have been approved by the NRC, cubject to Commission approvalt 10 CFR 50 Section 50.55 a(b)(2) revised as of January 1, 1983 states " references to Section XI of the ASME Boiler and Pressure Vessel 03 code refer to Section XI through the 1980 Edition and addenda through the Winter 1980 addenda". In accordance with the above, North Anna Unit #1 will test those pumps that fall under the scope of ASME Section XI using Subsection IWP of the 1980 Edition of ASME Section XI.

f-A review has identified those pumps whose function is safety, (Section 2.4, Pump Testing List). These pumps will be tested in 03 accordance with the 1980 Edition of ASME Section XI to the extent practical. It must be recognized that due to design differences among plants, some code testing requirements are impractical. Where such impracticalities exist, relief has been requested and alternate testing requirements have been proposed when warranted. 2.2 PROGRAM IMPLEMENTATION The Pump Test Program will be executed as part of the normal plant surveillance program which is implemented by periodic tests. Reference values were established using original surveillance test data or data from later tests when the pump was operating acceptably in accordance with IWP-3110. Acceptance criteria for the periodic tests are based on the reference values and the allowable ranges specified in Table IWP-3100-2. Following pump maintenance the previous reference values will be reconfirmed or a new set of reference values will be determined in accordance with IWP-3111. Post-maintenance testing will be performed by the applicable pump. periodic test. 2.3 PROGRAM ADMINISTRATION The Engineering staff at North Anna is responsible for the administration of the Pump Inservice Test Program. The Operations staff is responsible for performing the periodic tests required by ASME Section XI. The Pump Inservice Test Program is implemented by Station. Administrative Procedure 11.3 "IWP/IWV Evaluation" and Periodic Test Procedures. t-1

I L This program will be officially implemented by March 15, 1984 and will govern pump testing for the remainder of the first Unit 1 120 month inspection interval which ends June 6,1988. The program will be updated as required by the addition of new pumps, relief requests, etc. Prior to the end of the first 120 month inspection interval, the program will be reviewed and upgraded to assure' continued compliance with 10 CFR 50.55a(g)(4) for the second 120 month inspection interval. i

ALLOWABLE RANGES'OF TEST QUANTITIES (1) ACCEPTABLE ALERT RANGE REQUIRED ACTION PARAMETER' RANGE LOW HIGH LOW-HIGH Velocity (in/sec) 0.31n/sec None .3 in/sec.61n/sec None >.6 in/sec 03 Notes: '(1) This table is based on the general machinery vibration severity chart published by IRD Mechanalysis. 4 L-

i-n RELIEF REQUEST #2 PUMPS 1-CH-P-1A 1-CH-P-1B l-CH-P-lC SECTION XI REQUIREMENTS FOR WHICH RELIEF IS REQUESTED

1. Measure inlet pressure.

2. Measure flow rate.

BASIS FOR RELIEF REQUEST

1. Inlet pressure instrumentation is not installed.

03 '2.' Flow instrumentation is not installed. ALTERNATE TEST,ING

1. The Volume Control Tank provides the suction head for these pumps. Volume Control Tank pressure will be recorded to establish initial conditions for testing. Elevation head will be added to Volume Control Tank pressure to get inlet pressure.

This inlet pressure will then be uced to calculate differential prescure.-

2. NONE

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'\\, t.; ' s + RELIEF REQUEST #3 PUMPS V s 1-CH-P-2A ' l-CH-P-2S's - 1 s SECTION XI REQUIREMENTS FOR WHICH RELIEF IS REQUESTED 1.-Measure inlet, pressure. ~ [

2. Measure flow' rate.'

3. Maasure vibrations, dube oil level or pressure and bearing

'~ ' temperatures. , s BASIS FOR RELIEF REQUEST-

1. Inlet pressure linstrumentstion is not installed.

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2. Flow' instrumentation is not installed.

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3. These pumps are totally encased in.inaulation which makes vibration, a

lube oil level or pressure and bearing tempe'ratures impEssible to measure or observe. ALTERNATE TESTING-s . ': ~. s

1. The Boric Acid. Storage Tanks provide tho suction hea t for chese s

~ pumps. Tank level will be recorded to establish initial conditions A for testing. Inlet pressure will be determdned from tank level. s This.inletpressurewillthenbeuseddocaliulatedifferential 7 \\ ~ pressure. s 2'. NONE

3. NONE'

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REVISIONS TG THE NORTH ANNA UNIT NO. 2 pugp INSERVICE TEST PROGRAM

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m -p 1 'g + W ,d' 4 } M+ ~: ~ a ? s t. PUMP INSERVICE TEST PROGRAM 2.1. PROGRAM DEVE.0PMENT PHILOSOPHY ,The North. Anna Unit #2 Pump Inservice Test Prpgram has been y -j-- developed to meet the requirement.a of 10 CFR 50, cection KI of the '~ ~ ASME Boiler and Pressure Vessel Code, Subsection IWP-and Technical 1 j Specifications. This Program has been designed to detect and . j-evaluate significant hydraulic or mechanical changes in the

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operating parameters of vital pumps and to initiate corrective action when necessary. North ~ Anna Unit #2 Technical Specification'4.0.,5 requires ~ ~" ~ ~ " Inservice testing of ASME Code Class 1, 2 and 3 pumps shall be t,- _,'y performed in accordance with Section XI of the ASME Boiler and G Pressure-Vessel Code and applicable ~ addenda as required by 10 CFR ~ ..;p y ,1

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,50, Section 50.55'a(g), eycept where~ specific written relief has + s be'en granted by the Commission pursuant to 10 CFR 50, Sectfon 50.55 a(g)(6)(1)". m .c ~ 10 CFR 50, Section 50.55 a(g),(4)(iv) states " inservice .e .a s ,,)~ / v -h*' 'r .y .Jy.~inations of components may meet the requirements set forth in . exam s y y ' '/,( subsequent editions arid addenda"gof ASME' Sectkon X'I thht have been r-- r; jg ~ ' approved by the NRC, subject.to Commission,4pproval, 10 CFR 50 a .t _. s -. s.2,. ' Se9t'i$rr 50. 55 a(b)(2) revised as of Januaryll,1983 states 03 gj, ', +. (, s *: w"r ~ e.f rences to IIection XI of the ASME Boiler and' ?re,ssure Vessel' ' A. 7 ,f .r.c49;tefor t6,Section XI through the 1980 Edicion and addenda ~ f mr In accordance with the above.

through the Winter,1980 addenda".

' North Anna Unit #2 will' test those pumps that fall under the scope N of ASME Section XI using: Subsection =IWP of the 1980 Edition of ~7, .p thv ASME'Section XI. -{ C* a / t- . v r1 W r< y p >t_.f-

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,~ a; t.r A review has identified those pumps whose function is safety, (Section 2.4, Pump Testing List). These pumps will be tested in 03 accordance with'the 1980 Edition of ASME Section XI to the extent practical. It must be recognized that due to design differences 'among plants, some code testing requirements are impractical. Where such impracticalities exist, relief has been requested and I alternate testing requirements have been proposed when warranted. - 2. 2 PROGRAM IMPLEMENTATION ~ The Pump Test Program will be executed as part of the normal ' plant surveillance program which is implemented by periodic tests. Reference values were established using original surveillance test data or data from later tests when the pump was operating _ acceptably in accordance with IWP-3110. Acceptance criteria for the periodic tests are based ~on the reference values and the ~ allowable ranges specified in Table IWP-3100-2. Following pump maintenance the previous reference' values will be reconfirmed or a new set of. reference values will be determined in accordance with IWP-3111. Post-maintenance testing will be performed by the applicable pump periodic test. PROGRAM ADMINISTRATION 2.3 The. Engineering-staff at Norti Anna is responsible for the administration of the Pump Inservice Test Program. The Operations staffuis responsible.for performing the periodic tests required by ASME Section XI. The Pump Inservice Test Program is implemented by ' Station Administrative Procedure 11.3 "IWP/IWV Evaluation" and . Periodic Test Procedures. k a

U .1 :. -- .4, This program will be officially implemented by March 15, 1984 and will govern pump. testing for the remainder of the first Unit 2 120 month inspection interval which ends December 14, 1990. The program will be updated as required by the addition of new pumps, relief requests, etc. Prior to the end of the first 120 month -inspection interval, the program will be reviewed and upgraded to assure continued compliance with 10 CFR 50.55a(g)(4) for the second 120 month inspection interval. j -: s m. D e d I e

ALLOWABLE RANGES OF TEST QUANTITIES' (1) ACCEPTABLE ALERT' RANGE REQUIRED ACTION PARAMETER. RANCE LOW HIGH LOW HIGH Velocity-(in/sec) 0.31n/sec None .3 in/sec.61n/sec None 7 6 in/sec l03 Notect -(l) This table'is based on the general machinery' vibration. severity chart published by IRD Mechanalysis.

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RELIEF REQUEST #2 PUMPS CH-P-1A '2-CH-P-1B 2-CH-P-1C 'SECTION XI REQUIREMENTS FOR WHICH RELIEF IS' REQUESTED .1. Measure inlet pressure.

2. Measure flow rate.

BASIS FOR RELIEF REQUEST

1. Inlet-pressura instrumentation is not installed.

2. Flow instrumentation is not installed.

03 ALTERNATE TESTING' 1."The Volume. control Tank provides the suction head for these pumps. - Volume Control Tank pressure will be recorded to establish initial conditions for testing. Elevation head will be added to Volume Control Tank pressure to get inlet pressure. This inlet pressure will then be used to calculate differential pressure.

2. NONE

n- ' =.. RELIEF REQUEST #3 PUMPS 1-CH-P-2C-1-CH-P-2D SECTION XI REQUIREMENTS FOR WHICH RELIEF IS REQUESTED ^ 1.~ Measure inlet pressure. ~

12. Measure flow rate.

3.' Mearv e vibrations, lube oil level or pressure and bearing temperatures. BASIS FOR-RELIEF REQUEST 1._ Inlet' pressure instrumentation is not installed.

2. Flow. instrumentation is not installed.

03 3._These pumps are. totally encased in insulation which makes vibration. ~ -lube oil:1 eve 1 ~or pressure and bearing temperatures impossible to measure or observe. ALTERNATE TESTING ~1. The. Boric Acid Storage Tanks provide'the suction head for these

pumps.. Tank level will be recorded to establish initial conditions for testing

. Inlet pressure will be determined from tank level. This inlet pressure will then be used to calculate differential " pressure.-

2. "NONE -

'3. NONE-

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