ML20195F957
| ML20195F957 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 11/13/1998 |
| From: | Dave Solorio NRC (Affiliation Not Assigned) |
| To: | NRC (Affiliation Not Assigned) |
| References | |
| TAC-MA2156, NUDOCS 9811200135 | |
| Download: ML20195F957 (56) | |
Text
{{#Wiki_filter:w . L- November 13, 1998 LICENSEE: Baltimore Gas and Electric Company FACILITY: Calvert Cliffs Nuclear Power Plant, Unit Nos.1 and 2
SUBJECT:
SUMMARY
OF JUNE 25,1998, MEETING WITH BALTIMORE GAS AND ELECTRIC COMPANY (BGE) REGARDING LICENSE RENEWAL ACTIVITIES FOR CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS,1 AND 2 (TAC NO MA2156) On June 25,1998, the Nuclear Regulatory Commission (NRC) staff held a public meeting with representatives of Baltimore Gas and Electric Company (BGE) at Rockville, Maryland, to discuss BGE's age-related degradation and inspection (ARDI) program for License Renewal. A list of meeting attendees is provided in Enclosure 1 and slides used by BGE for the discussion are provided in Enclosure 2. Mr. Barth Doroshuk, Project Manager for BGE's license renewal application, opened BGE's presentation summarizing that approximately 395 programs existed onsite and that only 10 new aging management programs were needed as a result of BGE's preparations for license renewal. During the meeting BGE provided an overview ofits ARDI program which was one of the 10 new aging management programs. BGE also used several examples of components from the compressed air system and feedwater system to illustrate implementation of its ARDI
. program. Additionally, BGE concluded its presentation with an overview of how the ARDI program elements compared to the NRC's Draft Standard Review Plan for License Renewal program elements related to aging management programs.
(kMDOf David L. Solorio, Project Manager License Renewal Project Directorate Division of Reactor Program Management Office of Nuclear Reactor Regulation Docket Nos. 50-317 and 50-318
Enclosures:
- 1. List of Attendees
- 2. BGE's Presentation Slides cc w/ encls: See next page DISTRIBUTION: See next page I DOCUMENT NAME:G:\ WORKING \SOLORIO\ JUNE _25.MTG OFFICE LA: PDI-{} PDLR N PDLR:D NAME SLittle7 DSolodd CGrimes fh DATE (l /.3 /98 ll/ 3/98 ll/ @98 ~ I OFFICIAL RECORD COPY 9811200135 981113 PDR a
ADOCK 05000317 eaa .
. gg g1E SEL Me T% ,_;a _ _ _ . _ _ _ _ _ - - - - -
-3 Baltimore Gas & Electric Company Calvert Cliffs Nuclear Power Plant l- cc: Unit Nos.1 and 2 l
President Mr. Joseph H. Walter, Chief Engineer Calvert County Board of Public Service Commission of ' Commissioners Maryland 175 Main Street Engineering Division Prince Frederick, MD 20678 6 St. Paul Centre Baltimore, MD 21202-6806 ' James P. Bennett, Esquire Counsel Kristen A. Burger, Esquire Baltimore Gas and Electric Company Maryland People's Counsel P.O. Box 1475 6 St. Paul Centre
- l. Baltimore, MD 21203 Suite 2102 Baltimore, MD 21202-1631 I l Jay E. Silberg, Esquire I' Shaw, Pittman, Potts, and Trowbridge Patricia T. Bimie, Esquire i 2300 N Street, NW Co-Director L Washington, DC 20037 Maryland Safe Energy Coalition P.O. Box 33111 i Mr. Bruce S. Montgomery, Director Baltimore, MD 21218 l l
NRM l Calvert Cliffs Nuclear Power Plant Mr. Loren F. Donatell l 1650 Calvert Cliffs Parkway NRC Technical Training Center l Lusby, MD 20657-4702 5700 Brainerd Road Resident inspector U.S. Nuclear Regulatory Commission David Lewis l P.O. Box 287 Shaw, Pittman, Potts, and Trowbridge L St. Leonard, MD 20685 2300 N Street, NW
- Washington, DC 20037 i Mr. Richard I. McLean Nuclear Programs Douglas J. Walters Power Plant Research Program Nuclear Energy Institute Maryland Dept. of Natural Resources 1776 l Street, N.W.
Tawes State Office Building, B3 Suite 400 Annapolis, MD 21401 Washington, DC 20006-3708 , DJW@NEl.ORG Regional Administrator, Region I , U.S. Nuclear Regulatory Commission Barth W. Doroshuk 475 Allendale Road Baltimore Gas and Electric Company King of Prussia, PA 19406 Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Mr. Charles H. Cruse, Vice President NEF ist Floor Nuclear Energy Division Lusby, Maryland 20657 ! Baltimore Gas and Electric Company
- 1650 Calvert Cliffs Parkway National Whistleblower Center ,
[ Lusby, MD 20657-47027 3233 P Street, N.W. l Washington, DC 20007 l I
to , , e\ l l l DISTRIBUTION: ! HARD COPY (w/ enclosures 1&2) l Docket Files ! PUBLIC PDLR R/F OGC l MEl-Zeftawy DISTRIBUTION: E-MAIL: (w/ enclosure 1) FMiraglia (FJM) JRoe (JWR) DMatthews (DBM) CGrimes (CIG) TEssig (THE) GLainas (GCL) JStrosnider (JRS2) GHolahan (GMH) SNewberry (SFN) Gaagcni (GXB1) RRothman (RLR) JBrammer (HLB) CGratton (CXG1) JMoore (JEM) MZobler/RWeisman (MLZ/RMW) SBajwa/ADromerick (SSB1/AXD) LDoerflein (LTD) BBores (RJB) SDroggitis (SCD) RArchitzel(REA) CCraig (CMC 1) LSpessard (RLS) RCorreia (RPC) RLatta (RML1) EHackett (EMH1) AMurphy (AJM1) TMartin (TOM 2) DMartin (DAM 3) GMeyer (GWM)
- WMcDowell(WDM)
SStewart (JSS1)
.THiltz (TGH)
SDroggitis (SCD) DSolorio (DLS2) PDLR Staff i
_m__ ._. __ _. . _ . _ . . _ _ _ _ _ _ . _ _ _ _ _ _ _ . . . _ _ . l~ i .- l L. 7 NRC & BGE
, PUBLIC MEETING r AGE RELATED DEGRADATION INSPECTION PROGRAM ;
l JUNE 25.1998 ' NAME ORGANIZATION
- 1. DAVID SOLORIO NRC/NRR/PDLR l
- 2. HANS ASHAR NRC/NRR/ECGB
- 3. GOUTAM BAGCHI NRC/NRR/ECGB
- 4. THOMAS CHENG NRC/NRR/ECGB
- 5. YUEH-LI C. LI NRC/NRR/EMEB
- 6. JAMES DAVIS NRC/NRR/EMCB ;
l 7. STEPHANIE COFFIN NRC/NRR/EMCB 3
- 8. BARRY ELLIOT NRC/NRR/EMCB l 9. ALEXANDER W. DROMERICK NRC/NRR/PDI-1 l . 10. SHOU-NIEN HOU NRC/NRR/ECGB l 11. BRIAN THOMAS NRC/NRR/SPLB l 12. KRIS PARCZEWSKI NRC/NRR/EMCB i 13. MICHAEL MCNEIL NRC/NRR/EMEB i l 14.' LEE BANIC NRC/NRR/EMCB j
! 15. SAM LEE NRC/NRR/PDLR i
- 16. CHRIS GRIMES NRC/NRR/PDLR
- - 17. BARTH DOROSHUK - BGE l 18. TODD CONNOR BGE
- 19. PETER PENN BGE
- 20. . C.J. LUDLOW BGE ,
i
- 21. JOHN CARBY EPRI
! 22. MICHAEL HENIG VIRGINIA POWER
- 23. DAVID ROTH ' VIRGINIA POWER
- 24. CARL YODER BGE
- j. 25. MARVIN BOWMAN BGE i l 26. LYNN CONNOR DOC-SEARCH ASSOCIATES l 27. C.A. NEGIN EPRI
- 28. DAVID TERAO NRC/NRR/ECGB L - 29. HERBERT BRAMMER NRC/NRR/ECGB l 30. PRAKASH PATNAIK NRC/NRR/ECGB r
- 31. DORIS MARTIN NRC/OlG
- 32. DOUG WALTERS NEl
- 33. - ALICE CARSON BECHTEL POWER i- 34. JENNY WEIL - MCGRAW-HILL L ' 35. DEBORAH STAUDINGER WINSTON & STRAWN ,
- 36. TED SULLIVAN NRC/NRR/EMCB
- 37. CHARLES BRINKMAN ABB-CE
- 38. HUl-BOH WANG NRC/NRR/PDLR
,. 39. DALETHATCHER NRC/NRR/EELB
- 40. SYED All NRC/NRRIECGB
- 41. AMAR PAL - NRC/NRR/EELB ~
.. - 42.' PHILIP HARSROUNI - HOPPER & ASSOCIATES
- 43. MIKE NEAL NUSIS l- 44." GEOFF HORNSETH NRC/NRR/EMCB
' 45. ROBERT WEISMAN NRC/OGC
- 46. DONIS SHAW BGE Enclosure 1
.i . . l
~~
Life Cycle Management Project 1 j . Age Related Degradation Inspection Program for License Renewal i Calvert Cliffs Nuclear Power Plant j ' i i
~
1 i Presentation to NRC - a l-4 i l'
. June 25,1998
) -s
~
! . Slide 1
~
, LCM 98-039
..- Enclosure 2
----c .,.. -, , ,s_.. , , , . , . . . . . . . , , . . . _ , . . , , . . , , . . - . , , . . _ _ . - , , . _ . , , . . , - , . . . , . , , . , , , , ~ , . , . . . , . , , ~ .
3 } N Life Cycle Management Project F. i: i Purpose and Obiectives
~
i. j
- Purpose
- Provide NRC with overview of Age-Related Degradation l and Inspection (ARDI) Program
- Objectives
- - Promote consistency & efficiency of staff reviews &
! Requests for Additional Information (RAls) t a ARDI Program is credited in 24 BGE LRA chapters
- Map draft SRP requirements to the ARDI Program and l
BGE LRA
- - Determine what additional information NRC needs i
Slide 2
>-v. ,- - . . - - , - , - - , , - , - , - , - , , , _ . - , , - . , , - _ . . -- ,_ .- __.,. ,,,. .._.. .-,. .,, ,..-,..,, ,., . ...,~ , - - . ,,- ,-, .. .. _ ,~,. ,,- ..,~- . ,,,..,-..., .- - .
..m. - - , --,,-, ,,---- -,
i Life Cycle Management Project i i ) ARDI Program Presentation Overview
- The ARDI Program:
l j - review ARDI program elements
- j. - identify applicable LRA sections
) - identify applicable age-related degradation mechanisms
- (ARDMs)
- Review ARDI examples:
l
- example 1 -Inspection of Compressed Air piping l - example 2 - ARDI Methodology for Main Feedwater Review draft SRP Program requirements:
l - map SRP requirements to the ARDI Program and BGE LRA Review of ARDI schedule i i a Need for additional information t !. Slide 3 4
,,-,-...,-.,,,-,-_,....~,....,--..-,.--_.........-_,,,_,-.___...,,---_....-,.-..--.-..,m. . , , . - , . - . . . . . , . . . . - , - - . - - - , - , - _ _
i I h. f Life Cycle Management Project
- j. I
!= 4 ,. Aaina Manaaement Proarams 1; i ll i 11 , The purpose of aging management programs is to [i prevent co~mponent functional failure as a result of ll' aging mechanisms. r ? Aging management is a two prong approach: l - Mitigation of aging mechanisms; F - Discovery of aging mechanisms. The ARDI Program will be a Discovery program i
., Slide d i
b
- j. . .
l Life Cycle Management Project i
! Aaina Manaaement Proarams i!
l
- There are three types of aging management programs i
for mitigation and discovery of aging mechanisms:
- 1. Existing programs (e.g., Erosion Corrosion program) l- 2. Modified Existing Program (e.g., PM programs) l 3. New Program (e.g., ARDI) l- .
l
- ARDI is a new program which defines actions to be
! taken to manage the effects of sp.ecific ARDMs
- ARDI provides a discovery function which can also
{ confirm the effectiveness of mitigation programs i - I slide 5 ) 4
.. - . ,- - - - - - - . . . , - - . , , _ . , - . _ , , , ,,__...._...,.,_.--.,,.--_,.,.~._,.._,,..m..-._
_ ...,,.-._,.__,,..m , - ~ , .. - , - , - , , ,. -,
4 l l' Life Cycle Management Project u n n Elements of the ARDI Proaram - F. as stated in the LRA l! : i L 1. Determination of the examination sample size based on [ plausible aging effects; c
- 2. Identification of inspection locations in the system / component based on plausible aging effects and consequences of loss of component intended function; i
! 3. Determination of examination techniques (including i acceptance criteria) that would be effective, considering l the aging effects for which the component is examined; 4
=
Slide 8 j . I -
i Life Cycle Management Project k Elements of the ARDI Program as stated in the LRA - cont. f, . ! 4. Methods for interpretation of examination results; i l 5. Methods for resolution of adverse examination ! findings, including consideration of all design !, !oadings required by the CLB and specification of l- required corrective actions; and,
- 6. Evaluation of the need for follow up examinations to i
monitor the progression of any age related , degradation. i i SHde 7
- 5
.,_...--,-,,.,,..,...--~,----,--v----*-- -
1 Life Cycle Management Project h ARDI Program Controls and Corrective Actions ll! as stated in the LRA Conclusion Sections y a "The:se programs are (and will be for new programs) 1 administratively controlled by a formal review and 1 approval process." y
= "The analysis / assessment, corrective action, and confirmation / documentation process for license
- i renewal is in accordance with QL-2, " Corrective
- ! Actions Program." QL-2 is pursuant to 10 CFR Part i 50, Appendix.B, and covers all structures and components subject to A.MR."
sudea i _ s- -. . .- .. -,, ,,__m.,,.,.-, .,,,_v. ....-,,-.,..-...,,-......,,...,_,.,,,~..,,,._.,,_,._.__,...-,,.,..,,,m,_,.... ..-r, .. -,...._.,..-,,,-.,-v-,. , , , . _ , . , . - - . - .
i Life Cycle Management Project t 4 Table 1 - BGE LRA Sections Creditina ARDI Proarams and Associated ARDMs
' ' ~ ' '
i'
- LRASection h - Title itDUs 4.3 Reactor Vessel Internals stress corrosion cracking (SCC)/ stress relauntion lr 5.I -
Auxiliary Feedwater erosion / corrosion / wear /elastonier degradation , 5.2
, Chemical and Volume ControlSystem general & crevke corrosion / pitting / wear 1 _ _, ,
j
, , 5.3 : Component Cooling Water general & crevice corrosion / pitting / leaching / wear
- 5.4 - Compressed Air generalcorres5n i 5.5 Containment Isolation Groep e
general & crevice corrosion /MIC/ pitting / wear 5.6 , [ Containment Spray general & crevice corrosion / pitting l , 5.3 t Emergency Diesel Generator Systems general & crevice corrosion / pitting / fatigue / erosion s : i ! .
/ particulate wear erosion /MIC/ wear j 5.9 l Main FeedwaterSystem generel A crevke corres_y';
- g/ erosion /forigue _
1 5.19 Fire Protection
. l_ .._ .
general & crevice. .corrosion
/ pitting j!
5.IIs l ~ Heating and Ventilation - Anniliary Railding general & crevice corrosion / pitting / elastomer / wear
' ~ ; 5. iib j Heating and Ventilation - Primary Containment general & crevice corrosion I/ UttingIM' I UweN l'j , 5.IIe : Heating and Ventilation - Control Room and EDG general & crevice corrosion / pitting /MIC/ wear j 5.12 i Main Steam Systens crosion/ general & crevice corrosion / selective / wear
, . . ~.
- , ; 5.13 -
Neelear Steams Supply System Sampling general & crevice / pitting / fatigue / wear / elastomer degradation j 5.14 Radiation Monitoring System general & crevice corrosion / pitting j 5.15 Safety Injection general & crevice corrosion / pitting /MIC/ wear, . 1 5.I6 , Salt Water Systens general & crevice corrosian/ pitting /MIC/ particulate wear
, erosion /elastonier/ erosion corrosion 5.17 Service Water System erosion / general & crevice corrosion /pittingEleic ve 5.18 i Spent Feel Pool Cooling general & crevice corrosion / galvanic / pitting / robber degradation 6.4 lastrument lines general corrosion / elastomer degradation .,
3.1
) Component Supports general corrosion / vibration & esponsion loading j 6.2 Electrical Panels electrical stressors / wear /fstigue/ general / dynamic loading ; 6.1 Cables thernial aging / radiative aging / treeing i
l Slide 9
- i. .
, - - - _ . , , . _ - , . . . . _ _ . -_--.....m,.., ..m_.-__. . _ _ , . , . , _ , . , . _ . . - , . . . . _ , . . . . - . _ , , , , _ _ - , , , _ , . - . _ . _ , - - ~ - , , . , . ~ , _ _ . , = .
Life Cycle Management Project L 4
.ARDI Example 1 i Inspection.of Comoressed Air Pipina_
- j. -
Inspection described in CCNPP LRA, Appendix A, [ Section 5.4, Compressed Air System (page 5.4-15); y I* 0 Inspection performed on piping downstream of salt [ water air compressors, where worst case (bounding-location) general corrosion is expected; I 4 i s A Slide 10
Life Cycle Management Project e i ARDI Example 1 Inspection of Compressed Air Pipina_ Inspection revealed only very light surface rust, no evidence of crevice corrosion or pitting was found;
- this is reflected in the Compressed Air AMR report and Section l
5.4 of the BGE LRA. Continued maintenance of air quality is deemed an adequate aging management technique for this system:
- Preventive Maintenance Repetitive Tasks 10191024 and 20191022 which will be basis captured.
Slide 11
I - f Life Cycle Management Project
.i l
ii ARDI Example.1 Inspection of Compressed Air Piping i l
- Inspection revealed only very light surface rust, no
} evidence of crevice corrosion or pitting was found; } - this is reflected in the Compressed Air AMR report and Section l ', 5.4 of the BGE LRA.
- e j Continued maintenance of air quality is deemed an jg '
adequate aging management technique for this , system: I - Preventive Maintenance Repetitive Tasks 10191024 and 20191022 which will be basis captured. 1 I , i Slide 11 r j
~
}
Life Cycle Management Project ARDI Example c - 1 Inspection _of Compressed Air Piping Inspection revealed only very light surface rust, no evidence of crevice corrosion or pitting was found;
- this is reflected in the Compressed Air AMR report and Section l
5.4 of the BGE LRA. Continued maintenance of air quality is deemed an eg adequate aging management technique for this system:
- Preventive Maintenance Repetitive Tasks 10191024 and l
20191022 which will be basis captured. l 1 t SHde 11
l i - Life Cycle Management Project i 1, *
~
ARDI Example 2 I l Demonstration Inspection to Validate an ARDM Mitigation , l Program i I. h, .
=
ARDI Methodology Example for the i Feedwater System (FW) ARDI:
- - for the case of crevice corrosion
! i. 4 0' 8 i, 1 .' 1
~
{ , Slide 12
-- . , . , , . .. .e,- , , . . - , , , . , , , .........,,,,_w,,--., ,,,% ...r<- . , - -,,-m., ,,y,,,,+,,-.,w. ,,-w.,. ,-y-c., -,.-w,m_.. - , , ...c3,%,-,-w,-,.y, ~.. _.
Life Cycle Management Project I AMR Reports Provide Initial Inout for
! ARDis
- Systems for~ Consideration 4
a Passive Functions / Components Plausible Degradation Mechanisms Identifies Existing Programs to Manage Aging Effects
=
identifies Need for ARDI [ su. n
- g Life Cycle Management Project p, -
Table 2 - Feedwater AMR ARDI Summary Li Component Group / Mechanism Matrix
. uecup su py system clewce t;eosen ueneias meu
; .- ., sesecine asu weal Corrosion Conosion Corlosion --
- - " - ' ~ ~
t leicliiiwi i Maen Fnales System 045-UU-U1 A A A i l-UU l- EU l0 E M l-EUlv Za l ZUTB t , Z m l-ZUlv - U4"JW-U2 A A A E m J E001 i t i m J-FUUZ
\ +
ZmJ-ZUU E ZMJ-ZtMTZ 045 t RV-UI A A A EUR Vt W-EJU EL K Vt W-lJJ ZLK VW W- EJU ZLM VP W EJJ
, U45-HV-01 A A A (VJZ 98000 ^e --MOSJ U45-IN-UZ (4 gafe harMI mWweSJ A A A Flsvt W-ZZU THVV W-ZZZ ZifVt W-ZZU ZWEVW W-ZZJ 04"HUUUV-01 A A A A En8UV45 95VLV In'UV43I(VLV ZnUUV43 ED VL V Zn9UV4blf VLV
@E2141 A A A A
~~
lit 4310 llL431f X = 12- ::d tw ARDI
i Life Cycle Management Project c, Fee'dwater System ARDI for C hl' o Unit 1 System in Sco e w 6
\
f [ % - I y '
\~ %
1-
'y
/
4, r I se s
,y '3 2~;
s
. . l I . ;j g w _ -
j s_- ,g-j 1 N d 3 g p
, g s/
L_'- <-
^ s M
/
s,y I 4 Slide 15 O
Life Cycle Management Project
- 1. .
- . l ARDI Proaram Development -
u! i' i Determine Relevant Features of ARDM j - Determine Relevant Features of Each System Compare Degradation Mechanism Effects to System n. Features H' = Produce Final List
- Categorize Mechanism / Component Pairs into "More
, Likely" and "Less Likely" Groupings
- Determine Sample Size
- Determine inspection Requirements i -
Conduct inspections / Document Findings / Write
- issue Report (IR, if needed) .
4
1 l l l, Life Cycle Management Prc: lect i, i
- Crevice Corrosion Mechanism in FW
- i
[;
- Need very narrow crevice i - Need impurities that concentrate in a crevice j' ' -
Need steel on one or both sides
- Need incubation period I
l k 4 .
, Slide 17 l *
]
Life Cycle Management Project u. c . lll FW Operating Environment ni 4
- u
- Water 8
- Chemically treated i
qi n :
- Demineralized
/ - Service Conditions - 1300 PSIG Service Conditions - 435F Portions of the FW System not directly chemically
- . controlled during shutdowns
- i 1
i 1 o Slide 18
?
l
. , . _ . _ , , - . . , . . . . . . . - _ , . . - ,. . .... ,,---,,,...- ~..-,, --- - --c ,- ,,
i i l Life Cycle Management Project 4 [ Affected FW Components ! Pipina_ . l I 4
- Possible Locations identification p - Butt Weld
[. - Backing Ring o
- Socket Joint
- Surface Deposit
} Silde is
-w,-~--
1 ,
-m *esa -v-,a aw-v u we w w w-- - vm--,v-- ,w,--m-sw --,--w.m.,, e-w, -, , s. m-,-e--w-v, - - < -w ,~,--- nss,--u-vw.,v-,,-,-.mw+,v-,v--we- w w evwm-sv<. --n-- . m w-- r-~'e'*-* * * ' ' me , e-v-- ~--,ee- v
l l Life Cycle Management Project u jI - e Affected FW Components Temperature Element (TE) ii d u a. Possible Locations Identification ll
- Gap between thermowell and pipe wall J
1 1
~
i Slide 20 l-
-,--w , w,-v, ,-e.- --,sw+ ,--wv.--*w - - .- . , -,=m<,------ - * , ..-is3.- , * - - ,,---..m--._
I Life Cycle Management Project
- t l- .
U-Affected FW Components ol Check Valves (CKV) I
- 9 Possible Locations identification j - Body / Pressure Seal Cover Interface tlj - Body Drain Assembly (unit 2 only)
"1 - Surface Deposit
'I
,, Slide 21
- l. .
i i t i' ) Life Cycle Management Project
- i. I h -
f' FW Check Valve (unit 1) o,
'~ '"
b _f f 1 - body ' r - 2a -disk base
, nge imeT i 2b - counterweight
- f. . 3 - pressure seal cover j g N 1 -p -: 4 - pressure seal gasket
,' , g4 I
[( 3,y 5 -spacer ring
, g DSM 6 -gasket retainer o
,A.
ti?? ' [" 7 - cover retainer 8 - cover &ner cover
) [ ,,ga,,_
p I gSL"E 9 - hex head bolt W/ q f///f
,/ g - ,-
SHde 22 0
~
l
- Life Cycle Management Project H-Affected FW Components L
o Hand Valves (HV) i ! - Possible Locations identification
- Body / Bonnet Interface j - Seat Ring / Body Interface (gate valves only)
- Socket Welds l
- Stem / Bonnet Interface
! - Surface Deposit i 4
. Slide 23
Life Cycle Management Project Affected FW Components e Motor Operated Valves (MOV) p l - Possible Locations identification
- Body / Bonnet Interface
- Stem / Bonnet Interface
- Seat Ring / Body Interface
- Surface Deposit i
4 Slide 24 e
.: 2 : j : ;! , i . ! : i l
g T 4a s,
" F
% i s(
W v.s sl < Q y, .~~:
,Q M
{ , o 3 _ t
~
o r T _i - S
, N s g1 f_9 O
p y a-7 7 3 e r a
- m_ [_m[. y t
e d L i f e { r C a V 2
.s
. y
- ^"_ c
-- a
^
^
- l
,$ e b__..
~-->&
T// i l v e M a
. n
( a g g 4 e a m t e e n
} t
- P
_- r o Ij
=
j S H e d e c t 2 5
4 Life Cycle Management Project i l: Locations Where Crevice Corrosion is: More Likely
- - Body / Pressure Seal Cover interface -(CKV)
- - Body Drain Assembly -(CKV)
- - Body / Bonnet Interface -(HV, MOV) l - Seat Ring / Body Interface - (HV, MOV)
I
- Socket Welds -(HV)
- Stem / Bonnet Interface -(HV) l 4
=
Less Likely
- All other locations for FW components 4 1 SHde 28
~
k
, - , , - - , - - , - - , ---,e, , , , - , , . - - _ . , - , , . , , - - , . , . . , , , -
( 7 Life Cycle Management Project I Samolina-of More Likelv Locations for Crevice Corrosion i - 1 l 632 Surface / Surface Pairs with Potential for Crevice Corrosion
- Minimum Sample Size of 25 i
j = 90% Confidence that 90 % of the Surface [ Pairs do not have Crevice Corrosion
,, Slide 27
~
i i i g Life Cycle Management Project ARDI FW Inspection Locations - Two Check Valves (one each Unit 1, Unit 2) l
- 2 Body / Pressure Seal Cover Interface
) - 1 Body Drain pipe threads or sockets (Unit 2 only) l Two Hand Valves (1 globe,1 gate) j - 2 Body / Bonnet Interface ! - 3 Seat Ring / Body Interface ! - 4 Socket Welds
- 2 Stem / Bonnet Interface l - 2 Plug or Wedge / Stem Interface j Two MOVs (one in Unit 1, one in Unit 2) l - 2 Body / Bonnet Interface
- 2 Stem / Bonnet interface
- 4 Seat Ring / Body Interface
- 2 Wedge / stem interface 26 Surface Pairs suo rs I
- - , , , . , , - - - . . , , . - , , ~ ,-.,,,. - , , .,.,,,-~,,---m. -
,- -w,, +
~
l 4 Life Cycle Management Project I l ARDI Selection Guidelines
- Check Valve / Motor Operated Valve
- Longest time in service
- Ease of access il 1 :
i ' Hand valve (Drain or instrument Line) I - Longest time in service i
- Highest operating temperature
- - Most often stagnant or low flow conditions
- Valves that have a gasket at the body / bonnet interface i! . - Ease of access lk,
,, Slide 29 t *
..-,-,.-....,----,-,,,-,--..--w,--.-.~,~~,--, -~v~-- - ~ ~ ~ - - - ~ ~ = -
l i Life Cycle Management Project j 4 ARDI Inspection Oooortunities i l l : 4 l
- Check Valves, MOVs and Hand Valves 1
1
- During outage
- i. - When removed from service
- When replaced s
i i~ i w i l , Slide 30 O
,%,. .. %.v.- - --. .e3 .,.-.-- - -
i . 1 i { Life Cycle Management Project Dther Aspects of the ARDI Proaram - - l l. Inspections to be completed under current inspection .
- j. program:
! - Inspection Administrative Procedure:
- a Nondestructive Evaluation
- n Qualification of Nondestructive Personnel and Procedures l,' - Procedures will be modified as-needed to augment current
- practices j .
Examples of Acceptance Criteria Requirements: } , - Measurable evidence of degradation due to ARDMs (e.g., l condition monitoring)
- - Pitting corrosion acceptance as defined in ASTM G 46, i
" Standard Guide for Examination and Evaluation of Pitting i
Corrosion,"
- - Design minimum wall thickness as defined in the ASME Code
,- (e.g., B31.1, B31.7, Section HI), l
- Flaw acceptance under ASME Section XI for cracks, etc.
,, Slide 31
~_
G
,y ,is--s '** *-s - t w t v 7+ - ' :'-+-* -*' vee'm'a*-&t'-vv----+-v+-tvrew='=--9t-9 e--**e---i--www ve, w e, --- w-Sv=-iiv-ww--*= y-*w** v v e-e s'--o o '= w -e s =ev newi-tv-w-ssw-e-e,-+i- w s,-=-a w m w 3 w wwww--v-**'=-wt'+'--'-*-"' '-* *N- '-
e'* -'veie'***"
- i
{ 1 i Life Cycle Management Project
; Options if Crevice Corrosion Effects Greater
- j. .
than Acceptance Criteria are Found i L
= lssue Report will be generated and Corrective Action may. include:
il
- l. - Evaluate impact of observed corrosion (short and long-
[, term); j' - Increase sample size to better quantify extent of l corrosion; ) - Determine inspection interval to monitor progression; l - Repair / replace affected components; i 1
- Other.
i i I l I SHde 32
.,_,--g--_,,_m..,,_..m__m.. . .....,,,..,.,,_e..-,-,.,_,.,,_,,_.-,...,.,...,,_.,,,,,..,,.,. .,,,w.,.,,,,y,. , . ._, ,. _,,. -4, e _
I g Life Cycle Management Project
- NRC Draft SRP Program Requirements
[ and CCNPP ARDI Program Elements i: ! This Section will provide a mapping of the Draft SRP !: Program Requirements (from Section 3.II.C) to the ! Elements of the Planned CCNPP ARDI Program. i BGE Responses to SRP Requirements include NRC ! reviewer's information needs described in Draft SRP Program Requirements (from Section 3.lli.C), as appropriate. l .. Slide 33 s
l l l g Life Cycle Management Project l Draft SRP Requirement - 1 i
- l. 1. Scope of program should include the specific structures
!- and components subject to an aging management review ! forrenewal. i. I
- i ,
BGE LRA response to address SRP requirement 1: i .
- - Table 1 (Slide 9) identifies the systems / structures subject to i AMR; j - These BGE LRA Sections identify components to be included
- in the ARDI Program and the aging effects required to be mspected.
~
Slide 34 4
+, .,3.- _m--,,,..,,, 3-,n.,..., y,.,,,m,,,.v.-
e Life Cycle Management Project l !
- i i i Li Draft SRP Requirement - 2
..t l' 2. Preventive actions should mitigate orprevent aging i degradation. - 4 i ! .
- BGE LRA response to address SRP requirement 2:
l ' From the SRP Section 3.Ill.C, requirement 2, there are 4 i . programs identified: ! w 1) prevention,2) mitigation,3) condition monitoring, and 4) performance monitoring; i n condition and performance monitoring programs do not rely j on preventive actions, and therefore, do not have to provide this information. 1 - ARDI is a condition monitoring program used for discovery
;' activities
)' i-i i .. SHde 35 e
~w ,cw.,e.s dwe-- * *w w
- v- ~+s* vs= -=mu* ss- - =a-w- -w- --e=s-s'--*ev=-wr-+-r---w-1v-,v-~ ,
- v- v -w w -+ w w v-m,.e---ee,-' .~ we=-+--%-v www a
1 Life Cycle Management Project } , i.. 1 Draft SRP Requirement - 3 i
- 3. Parameters monitored or inspected should be linked to the
!- degradation of the particularstructure and component
- intended function (s).
BGE LRA response to address SRP requirement 3:
- The ARDI Program will inspect for the presence and extent of ll aging effects on a system-by-system basis;
~
- The BGE LRA Sections on Aging Management Programs describe
[ what componerits and ARDMs the ARDI Program will inspect;
- Determination of examination techniques (including acceptance criteria) that would be effective, considering the aging effect for l which the component is examined (ARDI Program element 3).
- - (continued)
SHde 36 -
Life Cycle Management Project , i Draft SRP Requirement - 3 Example of parameters and components monitored by the ARDI Program for the~ FW system (BGE LRA Section 5.9 page 1 5.9-10 Group 1 Aging Management Programs - Discovery; and page 5.9-11 Group 1 Demonstration of Aging Management):
- Crevice corrosion, general corrosion, and pitting of FW
[ components can be readily detected through non-destructive examinati~on techniques.
- As such, an inspection program to identify occurrence of corrosion is an effective means of determining if corrective actions are. required for managing these aging mechanisms.
- All components (FW piping, check valves, hand valves, MOVs, temperature elements) will be included a new plant program (e.g., ARDI) to accomplish the needed inspections for general corrosion, crevice corrosion and pitting.
Slide 37
4 i Life Cycle Management Project e Draft SRP Requirement - 4 s . l.
- 4. Detection of aging effects should occur before there is a loss of the structure and component intended function (s).
- BGE LRA response to address SRP requirement 4:
! - ARDIis a conditioning monitoring program which will inspect for aging effects to reasonably assure structure and/or component intended function (s) will be maintained. l - Effective examination techniques will be used (ARDI
- element 3) ,
i l sude as
---,-e,m.,,-,., ..--, , ,- ,.,,s--,,, ,,.,,,,y,..__,_, , _ _ . , , ,
1 Life Cycle Management Project 4 . 1 i Draft SRP Requirement - 5
- 5. Monitoring and trending should provide predictability b
of the extent of degradation and timely corrective or i mitigative actions. The monitoring, inspection, testing [ frequency, and sample size should be appropriate for timely detection of aging effects. j
- l.
- BGE LRA response to address SRP requirement 5:
l - The ARDI Program provides for monitoring and trending
- based on inspection results and corrective actions.
i (ARDI elements 5 and 6). sude ss l .
t e Life Cycle Management Project
~ '
l Draft SRP Requirement - 5 l
- 5. BGE LRA response to address SRP requirement 5-
! continued:.
- The ARDI Program will select sample size and inspection locations based on the reasonable assurance, that the components will perform their intended function in accordance with the CLB during the period of extended operation (ARDI element 1 and 2);
- Effective examination techniques will be used (ARDI
, element 3);
- The ARDI Program will allow for expanding sample size (follow up examinations) when evidence af aging mechanisms are found (ARDI element 6).
(ARDI Elements 1,2,3,5 and 6 cover the items in SRP program requirement 5)
., Slide 40 e
l l l Life Cycle Management Project Draft SRP Requirement - 6 1 i 6. Acceptance criteria, against which the need for
- corrective action will be evaluated, should ensure that i the structure and component intended function (s) are
- maintained under all CLB design conditions during the
- l. ..
period of extended operation. l , BGE LRA response to address SRP requirement 6: i j - ARDI Program element 4 provides methods for j interpretation of examination results such that the ~ j acceptance criteria will be established for a particular
- aging mechanism and corrective actions will be taken to i maintain CLB design loadings; -
(continued)
- SHde 41 , . . - - . _ . . . , . . - . _ , _ _ . , . . . _ . . - . - , _ . _ , , , . . . - _ . , _ . ~ , . . . _ , _ _ , , . _ . . , , . . . . . _ . . ~ . . . _ , , , _ . . - . , . , , . _ , _ . _ , . . _,..,._,_,..-..,.,,...,,---.r<,--,,_.--_...-,,,
i-l Life Cycle Management Project u u e Draft SRP Requirement - 6 l i BGE LRA response to address SRP requirement 6 - !: continued: s a ll ii For Example: 0 .
- Not meeting the acceptance criteria could be the presence of an ARDM, which will lead to the corrective j actions program; or, 1
4 j - Where existing, Codes and Standards for various i ARDMs (e.g., min. wall thickness) will be used as the acceptance criteria to demonstrate compliance with CLB l design loading conditions. i o-Slide 42
l L p Life Cycle Management Project o Li Draft SRP Requirement - 7 1 [ 7. Corrective actions, including root cause determination !- and prevention of recurrence, should be timely. L i
. BGE LRA response to address SRP requirement 7:
4 ]l' - The Conclusions for each of the BGE LRA Sections states j! that: j a "The analysis / assessment, corrective action, and confirmation / documentation process for license renewal
- programs is in accordance with the CCNPP Corrective
) Actions' Program, which is pursuant with 10 CFR Part 50, Appendix B, and covers all structures and components subject to AMR;"
- ARDI Program element 5 states that required corrective i
l actions will be taken. 1
,, SHde 43 3
1 I *
- - - , - - - - _ , , , - . , _ , , - _ , , _ , - , , . , , - . , _ - - . . , , , . . . . . , _ _ . _ , . . . . . , . . - _ _ . . . . . _ , , . , - . , , - . - . _ . . , , _ . , _ . , _ , . . . . - ~ . , . _ . - - , _ , _ , _ , . . . - _ . ~ . - . , , _ , . . . _ _ , , ,,, ..--,~~.--... ,. , ,, ,
l 1 l I Life Cycle Management Project il.
.b Draft SRP Reauirement - 8 n
ii l 8. Confirmation process should ensure that preventive p actions are adequate and that appropriate corrective i; actions have been completed and are effective. a. a D [ 1
. BGE LRA response to address SRP requirement 8:
1
- The Conclusions for each of the BGE LRA Sections states
[ that: , a "The analysislassessment, corrective action, and
- confirmation / documentation process for license renewal j programs is in accordance with the CCNPP Corrective Actions Program, which is pursuant with 10 CFR Part 50, Appendix B, ,
and covers all structures and components subject to AMR;" l (continued) t. ! O l Slide 44 '
,_ _ . , , _ _ . . - _ _ _ ., _ _,_-, _ .. . . _ - . , . , , , , , _ , _ . - ~ _ . _ _ , _ _ . , . , _ _ . . _ . . - - . . . _ _ . . . . , _ . . . . . , _ _ _ _ _ . . . . , , . _ , . . . , _ . . . . . , _ , . . - _ _ . . - . _ , , _ ..,. _ __ ---, _ - ,._ ,_ ___. _ -
1 1 f 4 1 ) Life Cycle Management Project ! Draft SRP Requirement - 8 1 BGE LRA response to address SRP requirement 8 - [ continued: - QL-2-100, Issue Reporting (IR) and Assessment (Section 5.6 Evaluation of Effectiveness) n confirmation / documentation process for all license renewal programs (e.g., ARDI) is in accordance with the CCNPP Corrective Actions Program, which ensures that corrective actions have been effective. l - ARDI Program element 5 states that required corrective , l actions will be specified; h i
,, sue 4s
,2 -. - - . - * - -,-,.,--m,,, . - - --.,,,._,,v,.,,,v--.,-m,-,,..-, _ ,.. , , - ., . . -. , . . - ~ ,m. , _ . , , - , . . , ,,,,,,%---#~,.. .,,, y.,., , , . . ,.,, ., -,,,m,,-- - .3,v.,s -w-v--,,----,-.w,,.,,- ,r,
i \ l l I Life Cycle Management Project l : Draft SRP Rea.uirement l l 9. Administrative controls should provide a formal review ). and approvalprocess. I I - BGE LRA response to address SRP requirement 9:
- From BGE LRA (Conclusion section); "These programs are (and will be for new programs) administratively controlled by a formal review and approval process."
i
- Page B-3 (Appendix B, UFSAR Supplement) provides a brief summary description of ARDI which will become part of the UFSAR
~
i 1 0
,, Slide 46 9 -, .,,-,,.,,--,r,--,,-- w-- ~ - , , , , , - , , ---,-,-r-- - ~ , - + ~ ~ ~ - ~ ~ - < , , * - - ~ ~ ~ , - ~
2 Life Cycle Management Project L. Draft SRP Reauirement - 9 i. l-BGE LRA response to address SRP requirement 9 - h . continued: ( i
- g. -
The discussion on page B-1 (Appendix B, UFSAR Supplement) c . indicates n the activities credited for aging management are implemented
- , through BGE Nuclear Procedures I;
a these procedures consist of Policies, Directives, Administrative [ 4 Procedures, and Technical Procedures
- a the role of these procedures in addressing regulatory commitments l w that each program and activity credited for aging management is, or
- j. will be, controlled by site procedures >
] m that changes pertaining to aging management require review prior i to implementation to ensure activities continue in accordance with
- the current licensing basis 1
Slide 47
,_-,,_, ,--,,- .,,,- ,,-- , ,-- , ,,n, , - - - - - --~---r- . - - - - - ~ ~ ~ - ~ ~ ~ -
~
Life Cycle Management Project t i Draft SRP Reauirement - 10 l! i l 10. Operating experience of the aging management program, l, including past corrective actions resulting in program l - enhancements or additional programs, should provide l- objective evidence to support that the effects of aging will I, be adequately managed so that the structure and l components intended function (s) will be maintained during j the period of extended operation. l
= BGE LRA response to address SRP requirement 10:
- The ARDI Program is a new program and lacks program
- . experience. Operating experience will be incorporated into the
- Program as it is implemented.
i
~
j { o. Slide 48 I i
=
L Life Cycle Management Project I ' Mapping Summary of Draft SRP !- Reauirements and ARDI Proaram Elements l. SRP 1 - BGE LRA Sections
- SRP 2 - na f SRP 3 - BGE LRA Sections (ARDI element 3)
SRP 4 - BGE LRA (ARDI elements 3) SRP 5 - BGE LRA (ARDI elements 1,2,3,5,6) !l SRP 6 - BGE LRA (ARDI element 4) j; SRP 7 - BGE LRA (ARDI elements 5) ] SRP 8 - BGE LRA (ARDI element 5) SRP 9 - BGE LRA Sections
- SRP 10 - na I
, (Refer to Slide 9 for the BGE LRA Sections applicable to ARDI)
** Slide 49
- ~-
I
I - i i 1 Life Cycle Management Project v !n!! I! j- Review of ARDI Presentation 3 [ ARDI is a Discovery Program that provides additional j: assurance to demonstrate that aging effects are being j adequately managed or need not be managed. I i i L Examples of how ARDI accomplishes these functions were illustrated for two systems. l The ARDI Prpgram elements and BGE LRA were mapped to the applicable draft SRP Program elements. 2 3 !:. S"* a i t _..--. ,..-_ _.. _ - .., -.,.._-.- -,_,_ _ _.,. - .,.. ,- .--- _-,.. _-,, - ,__ , .-, ~,.. ----.--..--- ,_,,,- ,_- ....,- ._
i ! Life Cycle Management Project t 4 i i Future- ARDI Program Schedule i ) i' i Start Technical Requirements Document (TRD) 08/01/98
- l. -
Finalize administrative process 09/15/98 {
- Complete Final Draft of Procedure 10/15/98
): 1
- Complete draft of TRD 10/15/98 i - Incorporate comments on Procedure and TRD 11/15/98 1-
- Review / approval Final Procedure and TRD 12/31/98 l
i i l 3 i g SNde 51 r*
1 l i l Life Cycle Management Project l - Need for Additional Information i l i. 1 t' Li - What additional information is required for staff '
- review of the ARDI Program?
;l :
1 1 j j SNde 52 TO _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ . _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . __ ______. _ __ _ __ _ ___ _ _.._______ _ ___ _ _ _ .._______ _ __.____.._ .. ...,-_,.___ ______ _ __}}