Pacific Gas and Electric Company Semimonthly Status Report No. 48 Diablo Canyon Verification Program October 28, 1983 SUMMARY This is PGandE's forty-eighth Semimonthly Status Report which summarizes the progress of the design verification program from October 11, 1983, through October 24, 1983. Since IDVP activities are complete, this repor t discusses only PGandE's Internal Technical Program activities. PGandE's Internal Technical Program has identified a total of 42 open items to date. Thirty-eight of the 42 open items have been closed by PGandE. 83iii50270'3i028 PDR ADOCK 05000275 R PDR 0003L/0005P-(2)
Transcript
Pacific Gas and Electric Company
Semimonthly Status Report No. 48
Diablo Canyon Verification Program
October 28, 1983
SUMMARY
This is PGandE's forty-eighth Semimonthly Status Report which summarizes the
progress of the design verification program from October 11, 1983, through
October 24, 1983. Since IDVP activities are complete, this repor t discusses
only PGandE's Internal Technical Program activities.
PGandE's Internal Technical Program has identified a total of 42 open items todate. Thirty-eight of the 42 open items have been closed by PGandE.
83iii50270'3i028PDR ADOCK 05000275R PDR
0003L/0005P-(2)
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STATUS OF INTERNAL TECHNICAL PROGRAM
This section descr ibes the status of work in PGandE's Internal Technical
Program.
Status reporting for the piping and pipe support design review is provided in
Table I. Status reporting for the civil/structural design review is provided
in Table 2. The status of plant modifications is provided in Table 3. A
'discussion of the progress of engineering and construction activities is also
provided.
Status of, Internal Technical Pro ram
The discussions below summarize the status of work for each area
indicated.
A. Containment and Internals
Confirmatory analysis for the latest pipe support loads iscontinuing. Engineering for containment internals is complete.
B. Aux i 1 iar Bui Idin
Fixed-base 3-D finite element analysis is complete. Finaldocumentation is in progress.
C. Fuel Handlin Buildin
Engineering for the Unit 1 fuel handling building is complete.
0003L/0005P-(3)
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D. ~Tbi l1ChI
Member evaIuation to account for current Class I pipe support Ioads
is nearing compIetion. AII other engineering is compIete.
Member evaIuations for the case of the crane Ioaded and operating are
compIete.
E. Intake Structure
Engineering for the intake structure is compIete.
F. Pi e Ru ture Restraints
The pipe rupture restraint review is nearIy compIete. Restraintmodifications are currentIy being issued. Eva'luation for restraintswith pipe hanger 'loads is partia11y compIete. The test program forspIit wedge nuts and coupIings has been compIeted.
The testing of rod ductiIity (OI-42) inside containment has been
compIeted with testing outside containment in progress. SpIit wedge
nut instaIIation inside containment is 95% compIete with insta11ationoutside containment in progress.
G. Pi in and Pi e Su orts
The stress anaIysis work for Iarge bore piping and Iarge bore pipingsupport design is compIete with the exception of reconciIiation ofas-buiIt conditions with the present designs.
The stress anaIysis work for sma11 bore piping and sma11 bore pipe
support design is complete with the exception of reconciIiation ofas-buiIt conditions with the present designs.
-3-
0003L/0005P-(4)
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H. E ui ment Seismic Desi n Review
1. Mechanical Equipment
The seismic design review for all Design Class I mechanical
equipment within the PGandE design scope has been completed
based on nozzle loads and spectra available October 19, 1983.
The review is now being updated as necessary, to incorporate thelatest loads, spectra, and as-built information.
2. Electrical Equipment and Instruments
All PGandE scope equipment reviews are complete. Minor
rechecking for the latest turbine and auxiliary building spectrais complete.
3. Heating, Ventilating, and Air Conditioning Equipment
All Design Class I HVAC equipment is being analyzed or tested tomeet design requirements using the latest spectra.
I. Electrical Racewa Su orts
Elecrical raceway support reverification work is nearly complete.
J. HVAC Ducts and Su orts
Engineering for HVAC duct and support reverification work iscomplete. Final documentation is in progress.
K. Instrumentation Tubin and Tubin Su orts
All engineer ing associated with instrumentation tubing and tubingsupports is complete. Final documentation is in pr ogress.
0003L/0005P-(5)
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0 en Item Status
To date, a tota1 of 42 open items (OIs) have been identified by
PGandE (Attachment I). Thirty-eight open items generated by the
Interna1 Technica1 Program have been c1osed by PGandE. The remaining
four items are not fueI 1oad requirements.
J nB. Ho
Diab1o Canyon Project Manager
0003L/0005P-(7)
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TABLE OF CONTENTS
Summary
Status of InternaI Technica1 Program
Tab1e 1 - Status of Piping Review
TabIe 2 - Status of CiviI/Structura1 Review
Tab1e 3 - Status of P1ant tlodifications
Attachment I - Status of PGandE Open Items
0003L/0005 P- (1)
TABLE 1
STATUS OF PIPING REVIEW
Large Bore Piping
Field as-built check
Drawing incorporation of field as-builtcheck results
Establish procedures and criteria
gualification or reanalysis of seismic andthermal problems
Large Bore Pipe Supports
Procedures and criteria
gualification or redesign of pipe supports
Small Bore Piping
Procedures and criteria
Initial sample selections
Computer analyses review(Includes SAM and TAM Review)
Span criteria sample review
Small Bore Pipe Supports
Pr ocedures and criteria
Percent~Gem 1ete
100
100
100
100
100
100
100
100
100
100
100
Initial sample selections
Span criteria sample review
Standard support details review .
Code boundaries review
Local pipe stress from lugs review
100
100
100
100
100
0003L/0005P-(9)
TABLE 2
STATUS OF CIVIL/STRUCTURAL REVIEW
CONTAINMENT STRUCTURE
Percent Com 'lete For*
Task Descri tion
- Seismic criteria- Annu1us structure
- Exterior she'l1
- Interior concrete structure
- Cranes
- Platforms
- P1ant vent
FuelLoad
100
100
100
100
100
100
100
Low Power~Teston
NA
NA
Fu11Power
NA
NA
* Refer to PGandE's December 3, 1982 1etter to the NRC for definitionof the three step 'licensing process.
NA - Not App1icab1e; not required or not identified for this step.
0076L/0093P-1
TABLE 2 (cont'd)
STATUS OF CIVIL/STRUCTURAL REVIEW
AUXILIARYBUILDING
Percent Com lete For
Task Descri tion
- Seismic criteria- Global vertical response spectra
Total ForecastDesign ReleaseConstr uction Complete
C. HVAC Supports
Total ForecastDesign ReleaseConstruction Complete
D. Raceway Supports*
Total ForecastDesign ReleaseConstruction Complete
E. Fuel Handling Building Connections
Total ForecastDesign ReleaseConstruction Complete
F. Hot Shop Steel Connections
Total ForecastDesign ReleaseConstruction Complete
G. Equipment Modifications
Design ReleaseConstruction Complete**
127912791238
438438438
619619619
182318231823
345345345
276276276
IOOX99K
11481125
968
255255249
None
None
None
None
* Remaining modifications are bolt torquing and replacement work.** There are two known equipment modifications not complete (CC>1 pumps and
diesel generators).
0003L/0005P-(11)
TABLE 3 (Cont'd)
STATUS OF PLANT MODIFICATIONS
II. OUTSIDE CONTAINMENT (Cont'd)
H. Intake Structure
STEP 1 STEP 2Fuel Load Low Power Testing
(As of 10/25/83 (As of 10/21/83)
Design ReleaseConstruction Complete
I. Turbine Building
Design ReleaseConstruction Complete
100K100K
100K100'A
None
None
NOTES:
Total Forecast: The predicted number of required modifications based onreviews and evaluations to date.
Design Release: The number (or percent) of modifications completed byengineering and released to the field for construction.
Construction Complete: The number (or percent) of modifications wherethe construction work is physically complete and the work isawaiting appropriate quality assurance inspection and engineeringapproval of as-built conditions.
If additional plant modifications are identified for Step 3, Full Power,they will be included in this table.
0003L/0005P- (12)
ATTACHMENT I
OPEN ITEMS
LEGEND
* Asterisk denotes item with revisions this reporting period.
** Status of piping issues in general are reflected in Tables 1 and 3.
*** Status of civil/structural issues in general are reflected inTables 2 and 3.
1. TASK: The number assigned by PGandE for tracking.
2. INITIATING DOCUMENT: The document which first identified the openitem to the IDVP.
3. IDENT DATE: The date the problem was identified (year-month-day).
4. ECD: Estimated completion date.
Note 1: Task numbers are not necessarily sequential for this listing.All 70000 series task numbers are dedicated to IDVP items orOIs.
Note 2: The error class and percent complete for modifications are nolonger applicable for the open item noted. The physicalmodifications are correlated with Open Item No. 37.
0003L/0005P- (15)
Attachment IPage l
INITIATINGTASK OOCUMEHT
IDENTDATE ECO OESCRIPTIOH
STATUS OF PGandE OPEN ITEMS
STATUSDESCRIPTIOH OF RESOLUTIOH
CONCLUSIVESTATEMEHT
OF RESOLUTION
REFERENCE TO ERROR X X MOOIFI-ITP PHASE I CLASS ANALYSIS CATIOHSFINAL REPORT PER IOVP COMPLETE COMPLETE
70098 SemimonthlyStatus ReportHo. 7Other F1ndings,Item l
70099 Sem1monthly ~
Status ReportHo. 7
Other Find1ngs,Item 2
820212 830i06CLOSEO
820212 820521CLOSEO
PGLE Open Item:Modeling of all annulus areavalves was rev1ewed. S1x werefound to be modeledincorrectly.
PGKE Open Item:The dig)tization of theeast-west translational Nosgrispectra for the 140 ft elevat1on1n the aux1liary bu1ld1ng hasbeen found to conta1n anerror.
The inlt1al concernaddressed 1nappropr1atemodeling of valveeccentric masses at thepipe center 11ne and allanalyses were reviewed tolocate modeling errors ofth1s type. The InternalTechnical Program 1ncludesreview and reanalys1s, asnecessary, for othervalve modeling 1ssuessuch as extendedstructure stiffness,valve we1ghts andlocation of the extendedmass center of grav1ty.
All pip1ng analyseswere reviewed to 1dent1fyaf fected piping. Oneanalysis was found toneed reanalysis. Th1sp1p1ng analysis was rerun.
New pipinganalyses havebeen performed.These analysesused the as-bu1ltconfiguration as1nput,and thevalves weremodeled 1n accor-dance with DCP
Procedure P-ll.All p1pe stressesare w1th1n allow-able values.Th1s OI isclosed; valvemodeling forp1p1ng reevalu-at1on 1s address-ed 1n OI 37.
PG&E Open Item:The method used to calculateraceway weights may haveresulted ln an underestimationof the weights of somecondults.
A review of all safety-class raceway supportshas been conducted. Theappropriate documentswere revised to lndlcatethe worst case calculatedweights. All affectedsupports were modified tomeet design criteria.
PG&E Open Item:Review of all Unit 1 smallbore plplng has identifiedi2 supports requiringvertical restraint where onlya single rod was utilized.
All small bore pipingsingle rod supportsrequired to function asvertical restraints willbe ldentl fled andmodified to providerestraint to both upwardand downward movement.
Forty-two single Section Arod supports were 2.2.l.l.lfound 'Inlocations whichrequired verticalrestraint andthese supportshave beenmodified to pre-vent uplift. Thisitem ls closed.
PG&E Open Item:One valve list in theHosgrl report was not updatedas required by a llcenslngcomnltment .
A complete listing of allDesign Class 1 activevalves has been preparedand issued as DCH H-58,Rev. 0. OI-37 addressesvalve quallflcatlon.
DCH H-58 has been Sectionprepared and 2.2.1issued which 2.2.1.3.hldentl f les all 2.2.2.3.2.2active valves tobe selsml callyqualified as wellas correspondingallowable acceler-ations andnatural frequen-cies. This OIls closed; thequail flcatlon ofthe valves lsaddressed lnOI-37.
Devlatlon 100 HA
OOOIL/0018P-2
Attachment IPage 3
IHITIATIHG IDENTTASK DOCUNENT DATE ECD DESCRIPTION
STATUS OF PGandE OPEN ITEHS
STATUSDESCRIPTIOH OF RESOLUTION
CONCLUSIVESTATEHEHT
OF RESOLUTION
REFERENCE TO ERROR 5 'A HODIFI-ITP PHASE I CLASS ANALYSIS CATIOHSFINAL REPORT PER IOVP CONPLETE CONPLETE
820I26 PG&E Open Item:CLOSED Certa1n small bore p1p1ng
spans have been 1dent1f ledas dev1at1ng from se1smlcc r1ter1a.
A large sample of smallbore plplng has beenrev1ewed and overspans1dent1f1ed. Analysis hasbeen completed to1dent1fy those spanswh1ch may 1ncur se1smlcstresses exceedingallowables. The percent-age of spans 1n th1sclass relat1ve to thetotal populat1on 1s 0.19KOes1gn 1nstruct1ons toadd supports wh1ch wouldellm1nate p1p1ng over-stress were 1ssued.Ver1f1cat1on of supportqua 1 1 f1ca t1onsassoc1ated with overspans1s complete and allsupports rev1ewed werefound to comply w1th theor1g1nal acceptancecr1ter1a.
REFERENCE TO ERROR X X MODIFI-ITP PHASE I CLASS ANALYSIS CATIONSFINAL REPORT PER IOVP COMPLETE COMPLETE
70104 SemimonthlyStatus ReportHo. 7
Other F1nd1ngs,Item 7
820212 830408 PGGE Open Item:CLOSED Pip1ng rev1ew of the annulus
revealed two thermal analyseswh1ch used incorrect modelingof supports.
The two thermal analyseshave been rerun andsupports qual1f1ed. Also,all thermal analyses arebeing reviewed as part ofthe Internal Techn1calProgram and those found tocontain support model1ngerrors are be1ng rerun andassoc1ated supports arebe1ng requal1f1ed.
New designanalyses havebeen performed.These analysesused the as-bu1ltconf1guration as1nput. Allstresses arew1thin allowablevalues. Th1s OI1s closed; therev1ew of allother thermalanalyses for thepi p1ng evaluat1on1s addressed inOI 37.
820212 830923 PGGE Open Item:CLOSED Piping with supports attached
to the containment 1nternalstructure above elevat1on 140 ftwere dynam1cally analyzed using140 ft containment interiorspectra. In addition, piping,electr1cal raceways and supportsattached to conta1nment exter1orpipeway were analyzed us1ngcontainment exterior spectra.
Appropr1ate spectra havebeen developed. The newspectra were compared tospectra used 1n the pre-vious qualifications.Where qual1fying spectrad1d not envelope the newspectra, analyses wereperformed to qual1fypiping systems and elec-trical raceways tocriteria. Some supportmod1ficat1ons wererequ1red as a result ofpip1ng reanalys1salthough they cannot beattr1buted spec1ficallyto th1s concern.
The appropr1atespectra have beendeveloped. OCM
C-17 1ncludesHosgr1 spectrafor the contain-ment 1nter1orabove El.
140'nd
for thepipeway. DCMsC-25 and C-30include ODE andOE spectra forthe 1nteriorstructure aboveEl. 140'. TheDDE and DE spec-tra for the con-tainment exterior1n DCMs C-25 andC-30 are usedfor the pipeway.Some piping sup-port modif1ca-t1ons were re-qu1red and arecompleted. ThisOI is now closed.
Sect1on A2 '.1,2.2.1.3.2.2,2 2 '
'.2.2.3.2.1,
2.2.2.3.32.4
100 100
0004L/0018P-4
Attachment IPage 5
INITIATINGTASK DOCUMENT
IDENTDATE ECO DESCRIPTION
STATUS OF PGandE OPEN ITEMS
STATUSDESCRIPTION OF RESOLUTION
CONCLUSIVESTATEMENT
OF RESOLUTION
REFERENCE TO ERROR X X MOOIFI-ITP PHASE I CLASS ANALYSIS CATIONSFINAL REPORT PER IDVP COMPLETE COMPLETE
820212 830l06 PG6E Open Item:CLOSED Seven analyses were identif1ed
for which the spectra sets usedwere not enveloped by theappropr1ate rev1sed reorientedspectra.
The seven analyses havebeen rerun us1ng appro-priate spectra sets andall remaining pipinganalyses are being re-viewed to assure use ofappropr1ate spectra.Where requ1red, analysesare be1ng rerun. Modif1-cation are being performedas requ1red.
Hew design analy- Sectionses have been 2.2.1,performed. The 2.2.1.3.2.2,current design 2.2.2analyses used the 2.2.2.3.2.lappropr1ate 2.2.2.3.3spectra. ThisOI 1s closed; thereview of therema1n1ng analysesand qual1f1cat1onof the associatedpipe supportsfor the pip1ngreevaluation areaddressed 1nOI 37.
820212 830916 PG&E Open Item:CLOSED Some masses were represented
incorrectly 1n the formulationof the dynam1c-modelof the containment 1nteriorstructure.
A des1gn review of thevert1cal dynam'Ic modelhas been made to deter-m1ne the s1gn1ficance forthe conta1nment inter1orstructure. Revised floorresponse spectra havebeen generated. Annulusstructure mod1flcat1onresulted and have beenperformed. Piping andequ1pment were rev1ewedand found to be unaffected.
Piping and equip-ment analyseswere found to beunaffected by thespectra changes.Structural mod1-f1cat1ons wererequ1red and havebeen performed.Th1s 1tem 1s nowclosed.
Section A2.1.1
100
701 ll SemimonthlyStatus ReportNo. 8Open Item 13
820127 830I06 PG&E Open Item:CLOSED Numerous d1screpanc1es have
been ident1f ied between theas-bu1lt piping configurationsand the plp1ng isometr1cdraw1ngs.
Audits, draw1ng rev1s1onsand, as necessary, plantmod1f1cations have beenperformed. F1eld as-bu1lt checks have beenconducted to verifydes1gn 1nformation.
Th1s OI 1sclosed. Theconcerns relatedto as-builtp1p1ng configu-rat1ons for thepip1ng reevalu-at1on are addres-sed 1n the OCP
REFERENCE TO ERROR X X MODIFI-ITP PHASE I CLASS ANALYSIS CATIOHSFINAL REPORT PER IDVP COMPLETE COMPLETE
70l42 SemimonthlyStatus ReportNo. 8Open Item 14
70143 Sem1monthlyStatus ReportNo. 9Open Item 15
820224
820309
820421 PGEE Open Item:CLOSED A def1c1ency in the small bore
se1smic anchor movement des1gncr1ter1a document was foundduring review 5 requal'If1cat1onof small bore piping forattached large bore pipingrevised se1smic displacements.The instruction for pro)ectionof skewed 11nes 1nto effect1velengths for the appropriate
~ planes resulted 1n greater spanlengths than the true pro)ectedlength.
830406 PG8E Open Item:CLOSED Documentat1on for qual1f1cat1on
of certain small bore p1pingsupport standard details forb1d1rectional load1ng cannot belocated.
The 1nstruction wascorrected. Small borepiping attached todynamically analyzed largebore p1ping was reviewedand reanalyzed usingcorrect pro)ected spanlengths.
The standard support de-ta1ls have been qual1fied.The effects of spectrarev1s1ons and 1nsulationwe1ght were 1ncluded 1nthe rev1ew.
Small bore pipingattached todynam1callyanalyzed largebore p1ping hasbeen rev1ewed andanalyzed. Homodi f1cat1onswere found to berequired. Th1sitem 1s closed.
The load capacityrat1ng for smallbore p1pe supportstandard deta1lshas been per-formed. Th1s OI1s closed; theacceptance of1nstallat1on ofsmall bore pip1ngfor the pip1ngreevaluat1on isaddressed inOI 37.
Section C 100 HA2.2.2
Sect1on Note 2 100 NA2.2.4,2.2 '.3.l.l
0004L/0018P-7
Attachment IPage 8
INITIATINGTASK OOCUMEHT
IDENTDATE ECD DESCRIPTION
STATUS OF PGandE OPEN ITEMS
STATUSDESCRIPTION OF RESOLUTION
CONCLUSIVESTATEMENT
OF RESOLUTIOH
REFERENCE TO ERROR X X MOOIFI-ITP PHASE I CLASS ANALYSIS CATIONSFINAL REPORT PER IDVP COMPLETE COMPLETE
10144'emimonthlyStatus ReportHo. 9Open Item l6
820309 830406"PGKE Open Item:CLOSED The exist1ng f1le 44 Hosgr1
hor1zontal se1sm1c coeff1c1entfor the aux1liary bu1ld1ngat elevation l63 ft 1s 5 ft.It should be 8.5.
The file 44 horizontaland vertical se1sm1ccoeff1c1ents have beenver1f1ed for cons1stencyw1th current spectra.Changes were rev1ewed foreffect on design.
The hor1zontaland verticalseismic coeff1-c1ents have beenverif1ed for con-sistency withcurrent spectraand the pertinentDCM. Th1s OI isclosed; thequal1f1cation ofthe affectedpip1ng and pipesupports for thepiping reevalu-at1on 1s ad-dressed 1n OI 31.
Sect1on2.2.4,2.2.4.3.l.l,2.2.4.3.2.2
Note 2 100 HA
10145 Sem1monthlyStatus ReportNo. 9Open Item 11
820309 830406 PGEE Open Item:CLOSED Seism1c anchor movement (SAM)
effects were not addressed forlarge bore PGLE design Class I11nes that were 1nstalled byspan criteria and attached tocomputer analyzed 11nes.
All large bore p1p1nghas been analyzed bycomputer. The effectsof SAN have beencons1dered.
All large boreClass I l1neshave been 1dent1-fled and reana-lyzed by computerdynamic analysistechn1ques, which1nclude the SAMeffects. The OI1s closed; therequal1ficationof p1pe supportsfor the p1p1ngreevaluat1on 1saddressed in OI37.
Section Note 22.2.l,2.2.1.3.l.l
100 „HA
10146~ Sem1monthlyStatus ReportNo. 9Open Item 18
820309 830921 PGLE Open Item:CLOSED Class I mechanical and HVAC
equ1pment, pip1ng and electr1calcondu1ts for the aux111arysaltwater system 1n the intakestructure were qual1f1ed to theNosgri ground response spectra1nstead of the floor responsespectra.
Correct floor responsespectra have been deve-loped. Oualification hasbeen demonstrated for theASM pumps and p1ping,electr1cal condu1ts andHVAC ductwork and equ1p-ment.
The developmentof correct floorresponse spectrahas resulted 1nthe re-qual if1-cation of allaffected systemsand components1n the 1ntakestructure. Th1sOI 1s now closed.
Section C
2.2.1,2.2.1.3.2.2,2 '.2.4,2.5
100 HA
0004L/0018P-8
Attachment IPage 9
INITIATINGTASK DOCUNENT
IDENTDATE ECO DESCRIPTION
STATUS OF PGandE OPEN ITENS
STATUSDESCRIPTION OF RESOLUTION
CONCLUSIVESTATEHENT
OF RESOLUTION
REFERENCE TO ERROR iI X NODIFI-ITP PHASE I CLASS ANALYSIS CATIONSFINAL REPORT PER IOVP COHPLETE CONPLETE
701 l8~ SemimonthlyStatus ReportNo. 9Open Item 19
70147 SemimonthlyStatus ReportNo. 9Open Item 20
820309 830923 PGLE Open Item:CLOSED The NRC cons1ders that the 30
analys1s of the conta1nmentpolar crane shows that theresults of the 20 non-11nearanalys1s included 1n the Hosgrireport are not conservat1ve.
820309 83lll5 PGGE Open Item:The se1smic analysis of theconta1nment dome serv1ce craneut111zed some results of the3D nonlinear polar craneanalys1s. These analyses hadnot yet been subm1tted for NRC
rev1ew.
The polar crane has beenreanalyzed to assure thatdesign compl1es w1thseism1c cr1teria. The 30analysts has ident1f1edareas that requiredstrengthen1ng. Hodifica-tions have been designedand construct1on completed.
The dome service crane hasbeen reanalyzed, using1nput from the polar craneanalys1s. Th1s is not afuel load 1tem since thecrane w111 be t1ed downand 1noperable dur1ngfuel load. Hodificationshave been des1gned andconstruct1on 1s 1nprogress.
The 3D analysisof the polarcrane has result-ed 1n mod1f1ca-t1ons wh1ch arecompleted. Th1sitem 1s there-fore closed.
The dome servicecrane has beenreanalyzed.Nodificationpackage has been1ssued.
Sect1on A 100 1002.1.1.5
Section A2.1.1.5
70161'emimonthlyStatus ReportNo. 10Open Item 2l
820322 831007 PGGE Open Item:CLOSED Calculat1ons made by EDS for li
1n. HVAC duct support load1ngsused incorrect se1sm1c responsespectra 1n some cases. This mayhave resulted .because thespectra provided by the DCP
(shown 1n Appendix A of the EDScalculation file) 1nadvertentlyomitted designating the eleva-tion 163 ft spectra as pertain-ing to the aux111ary buildingonly. Apparently, EDS personnelm1stakenly assumed that thosespectra could be used forse1sm1c loading at elevation163 ft 1n the turb1ne bu1ld1ng.
New response spectra atelevation 163 ft 1n theturb1ne bu1lding havebeen developed by the OCP.The HVAC duct and itssupports have been re-analyzed for these newspectra. The turb1nebuild1ng has been checkedfor the new support loadsresult1ng from thereanalyzed HVAC ductsupports. Mod1f1cationsto duct supports havebeen completed.
The developmentof new spectraat elev. 163-ft.has resulted inmod1f icat1ons tosome HVAC ductsupports. Themod1f1cat1ons arecomplete and thisOI 1s closed.
Sect1on A2.5.3
100 100
000iL/0018P-9
Attachment IPage 10
INITIATINGTASK OOCUHENT
IDENTDATE ECO DESCRIPTION
STATUS OF PGandE OPEN ITEHS
STATUSDESCRIPTION OF RESOLUTION
CONCLUSIVESTATEHEHT
OF RESOLUTIOH
REFERENCE TO ERROR 'A 'A NODIFI-ITP PHASE I CLASS ANALYSIS CATIONSFIHAL REPORT PER IDVP CONPLETE CONPLETE
70172 SemimonthlyStatus ReportHo. llOpen Item 22
820405 830i06 PGKE Open Item:CLOSED The reactor coolant system
pressur1zer supports and thecomponent cooling water heatexchanger were modeled 1n thep1p1ng analyses as rig1d.R1gid modeling may not beappropr1ate.
Review of the pressur1zersupport determined thestiffness to be 2.0I x108 lb/in., which 1sconsistent w1th the01ablo Canyon criter1afor model1ng as rig1d.The analysis of p1p1ngw1th the actual componentcool1ng water heatexchanger stiffnessresulted in support load1ncreases but acceptablepipe stress. Act1ons are1n progress to 1dentifyall equ1pment that doesnot qual1fy for r1gidmodel1ng and to performreanalysis as requ1red.
The sti ffness ofthe pressur1zersupports is con-s1stent w1th theDCP cr1teria formodeling asrig1d. The cur-rent designanalys1s con-s1dered theflex1b111ty ofthe CCM heat ex-changer by apply-1ng the displace-ments of the HXat the nozzle1n the se1sm1c
~ anchor movementana1ys1s. Allpiping stressesare within allow-able values.Th1s OI isclosed; the add1-t1onal analysesand requalifica-t1on of asso-ciated p1plngsystems anchoredby equipment pre-v1ously modeledas r1g1d for thep1p1ng reevalu-at1on are ad-dressed 1n OI 37
'ection
2.2.l,2.2.1.3.3.2,2 ' 2.2.2.2.3.2.1
Note 2 100 HA
OOOIL/0018P-10
Attachment IPage ll
INITIATIHGTASK DOCUNEHT
IDENTDATE ECD OESCRIPTIOH
STATUS OF PGandE OPEN ITEHS
STATUSDESCRIPTION OF RESOLUTION
CONCLUSIVESTATEHENT
OF RESOLUTIOH
REFEREHCE TO ERROR X X HODIFI-ITP PHASE I CLASS ANALYSIS CATIONSFINAL REPORT PER IOVP COHPLETE CONPLETE
10174 Sem1monthlyStatus ReportHo. 12Open Item 23
820412 830408 PGBE Open Item:CLOSED The Blume Internal Review has
determ1ned that several computeranalyses were performed before1t was required that allcomputer analyses be QAver1f1ed.
51x out of 864 computerruns needed further QAverificat1on. The smalldifferences between theresults of the or1ginals1x runs and the corres-ponding ver1f1cat1on runswere insign'Ificant.
QA ver1f1cationwas either con-f1rmed or pro-vided for allruns of all pro-grams used byURS/Blume forsafety-relatedstructures.Th1s OI 1s nowclosed.
Appendix lA Oev1ation 100 NA
10115'emimonthlyStatus ReportHo. 12Open Item 24
10116'emimonthlyStatus ReportNo. 12Open Item 25
820414 831004 POSE Open Item:CLOSED The Blume Internal Rev1ew has
ident1f1ed several quest1onsconcern1ng the turb1ne buildinganalys1s. These questions arerelated to the mathemat1calmodel1ng and computer analysisof the build1ng and to theeffect of some of the Hosgr1and post-THI modif1cat1ons onthe bu1ld1ng response.
820420 831003 PGEE Open Item:CLOSED The Blume Internal Rev1ew has
ident1fied questions related tothe se1smic analys1s of thecontainment 1nterior. Thesequestions are 1nsuf f1cientlyaddressed in the exist1ngdocumentation of the analyses,and relate to the mass, shearvalues, st1ffness, and to thecenters of mass and rig1dity ofthe model as well as to the1nterpretat1on of some of theresults.
The OCP has reviewedeach area of concern todeterm1ne its resolution.In add1t1on, the OCP hasperformed parametr1cstudies considerednecessary to ensure thatqualificat1on 1s ma1n-ta1ned. The mod1ficat1ons1dent1fied hve beencompleted.
The dynamic evaluation ofthe containment 1nter1orconcrete structure hasbeen completed. Thisevaluation 1ncluded con-s1deration of equipmentweights, mass, stiffness,center of rigid1ty, shearvalues, and rotationalaccelerat1on. The evalua-t1on, wh1ch resulted inno response spectrachanges, resolves the BIRcomnents about the1nter1or concretestructure.
The turb1ne bull- Sect1onding was complety 2.1.4reanalyzed. Thenew analysis con-s1dered the BIRconcerns andsuperseded theURS/Blume analy-ses. Hod1fica-t1ons to thebu1ld1ng struc-ture were 1den-tif1ed and havebeen completed..Th1s OI 1s closed.
DCP's reevalua- Sectiont1on of the con- 2.l.lta1nment inter1orconcrete struc-ture resulted 1nno changes 1nthe responsespectra. Nophys1cal modi f1-cations wererequired and thisOI is closed.
l00 100
CLOSED l00 HAITEN
0004L/0018P-ll
Attachment IPage 12
INITIATINGTASK DOCUMENT
IDENTDATE ECO DESCRIPTION
STATUS OF PGandE OPEN ITEMS
STATUSDESCRIPTION OF RESOLUTION
CONCLUSIVE REFERENCE TO ERROR X X MODIFI-STATEMENT ITP PHASE I CLASS ANALYSIS CATIOHS
OF RESOLUTION FINAL REPORT PER IOVP COMPLETE COMPLETE
70183 SemimonthlyStatus ReportHo. 13Open Item 26
7018'emimonthlyStatus ReportHo. 13Open Item 27
820504 820611 PGEE Open Item:CLOSED The Glume Internal Review has
requested URS/Glume to revisethe auxlllary building reportto reflect the actual timehistory used ln the analysis(20 rather than 2i secondslong) and to supplement thecalculations to demonstratethe appropriateness of thetruncated time-history.
820503 830ilB PGEE Open Item:CLOSED The Glume Internal Review has
ldentl fled a possible discrep-ancy ln the correlation betweenintake structure input spectrumand floor response spectra.This may affect the intakestructure crane analysis. Itwas also noted that the intakestructure selsmlc analysis didnot include the effects oF atsunami aFter possible selsmlcdamage to the intake flowdivider walls.
The auxiliary buildingreport, 'Diablo CanyonNuclear Power Plant,Auxll'lary BuildingDynamic Seismic Analysisfor the 7.5M NosgrlEarthquake', needed to berevised to reflect theactual time-history usedln the analysis performedby URS/Glume (20 ratherthan 2l seconds long).Calculations to determinethe appropriateness of thetruncated time-historywere performed. Theanalysis was rerun usingthe 2l-second timehistory. The resultsbetween the 2i- and the20- second time-historieswere compared and foundto be ldentlcal.
The DCP has developedfloor response spectrafor the intake structureand has analyzedthe intake structurecrane with these spectra.The effects of a tsunamion the intake structurehave been reviewed.
The report has Section C
been revised to 2.1.2reflect theactual tlme-hlstory used.Calculations havebeen included lnrevision 1 of thecalculation flieswhich demonstratethat the trun-cated tlme-hlstory producesan ldentlcal re-sponse spectrumto that of theoriginal tlme-hlstory. Thisitem ls closed.
The intake crane Section C
has been quail- 2.1.5fled with thecorrect floorresponse spectraand the intakestructure hasbeen reviewed forthe effects oftsunami forces.Ho modificationswere needed as aresult of thisopen item.
100 NA
100 HA
OOOIL/0018P-12
Attachment IPage 13
INITIATINGTASK DOCUMENT
IDENTDATE /CO DESCRIPTION
STATUS OF PGandE OPEN ITEMS
STATUSDESCRIPTION OF RESOLUTION
CONCLUSIVESTATENEHT
OF RESOLUTION
REFERENCE TO ERROR 'A X MDDIFI-ITP PHASE I CLASS ANALYSIS CATIONSFINAL REPORT PER IDVP COMPLETE COMPLETE
70185 SemimonthlyStatus ReportNo. 13Open Item 28
830131 830418'G&E Open Item:CLOSED An electrical design review has
found that incorrect clrcultbreakers were supplied forcertain 125 VDC circuits.20,000 amp interruptingcapacity breakers werespecified, however 10,000amp breakers were received.
20,000 amp lnterruptlngcapacity breakers wereprocured and installed.
Replacementbreakers havebeen installedthat meet specif-ications. ThisOI is now closed.
None A 100 100
70186'emimonthlyStatus ReportNo. 13Open Item 29
820507 830h06 PG&E Open Item:CLOSED Pipe support spacing tables for
noncomputer analyzed piping donot include (1) the effect oFpipe insulation weight, or(2) piping greater than h ln.diameter.
Hew spacing tables whichconsider the weight oflnsulatlon have beenprepared and the effecton small bore piping andsupport design has beendetermined. Large boreplplng ls not analyzedusing spacing tables.
The pipe supportspacing tablesfor non-computeranalyzed Class Ismall bore piping(2'nd smaller)have been veri-fied and theappropriate DCN
issued. Largebore pipe ls com-puter analyzed asdictated by DCPprocedure. ThisOI ls closed;quail f1 cationof pipe supports,lncludlng theeffect of insu-lation weight, lsaddressed lnOI 37.
Section2.2.1,2 ~ 2 ~ 2 ~
2 ' ' ' 3.2.2.h.3.2.2
Note 2 100 HA
70198» SemimonthlyStatus ReportHo. lhOpen Item 30
820521 830207 PG&E Open Item:CLOSED During the addltlon ln 1979
of the control room pressuri-zation system, the vitalelectrical power supply tothe redundant control roomheating, ventilation, and airconditioning (HVAC) system foreach unit was changed. Thischange defeated the ability ofthe Unit 1 control room HVAC
system to meet the singlefailure criteria lf Unit 2 werenot operating.
Transfer switches will beadded which will allowsystem components to besupplied from eitherUnit 1 or Unit 2 powersources. However, thisconcern ls being trackedln EOI 8012. Therefore,the OI ls closed.
This item lsclosed on thebasis that theconcern reportedand addressed lnEOI File 8012 lsthe same concernreported ln FileOI 30.
Hone HA NA
000hL/0018P-13
Attachment IPage ll
INITIATINGTASK DOCUMENT
IDENTDATE ECD DESCRIPTION
STATUS OF PGandE OPEN ITEMS
STATUSDESCRIPTIOH OF RESOLUTION
CONCLUSIVESTATEMENT
OF RESOLUTION
REFERENCE TO ERROR 5 X MODIFI-ITP PHASE I CLASS ANALYSIS CATIOHSFINAL REPORT PER IOVP COMPLETE COMPLETE
70202 SemimonthlyStatus ReportNo. 15Open Item 31
82060l 830578 PG&E Open Item:CLOSED The 8lume Internal Review has
identified certain items whichrequire further investigationto verify the acceptabllltyof welded pipe attachments atthe main steam and feedwaterpiping anchor. The anchor lslocated on column line G.
Reanalysis of the mainsteam and feedwaterpiping anchor pipeattachments and weldswas perFormed. Thepipe attachments andwelds designs werereviewed to determinecompliance to selsm'Iccriteria. Modlf1 cat 1onswere not required.
The as-builtstructural eval-uation of theanchor has beenperformed. Theanchor has beenfound to beacceptable as-ls. This OIhas been closed.
Section C
2 2 '.2.2.3.3.1
100 HA
70203'emimonthlyStatus ReportHo. 15Open Item 32
820607 830922 PG&E Open Item:CLOSED Models and assumptions used ln
the analyses For the seismicquallflcatlon of the fuelhandling building steelsuperstructure may haveresulted ln designs which donot totally satisfy allapplicable criteria.
A study has beenperformed to determinewhat modlflcatlons areneeded. The structure,with modl flcatlons, hasbeen reanalyzed to assureconformance to crlterla.Modifications have beendesigned and completed.A final verlflcatlon fromas-bullts ls ln progress.
The fuel handling Sectionbuilding and 2.1.3crane were re-analyzed andmodl f1catlonswere ruqulredonly for theFHB. The modi-fications arecomplete andthis OI lsclosed.
100 100 ~
70212~ SemimonthlyStatus ReportNo. 19Open Item 33
820813 831007 PG&E Open Item:CLOSED A review of the Hosgrl quallfl-
catlon calculations for Class IHVAC duct supports ldentlfleda generic support type whichapparently does not satisfy theapplicable crlterla.
A review of all Class 1
HVAC duct support designshas been completed todetermine their seismicadequacy. Modificationswere ldentlFled and havebeen completed.
All Class I HVAC Section Aduct support 2.5.ldesigns werereviewed ln ac-cordance with OCP
design crlterla.Modlf1 cat 1 onswere necessaryand are nowcomplete. ThisOI ls closed.
100 100
000iL/0018P-I I
~ ~
Attachment IPage 15
IHITIATIHGTASK DOCUMENT
IDENTDATE ECO DESCRIPTION
STATUS OF PGandE OPEN ITEMS
STATUSDESCRIPTION OF RESOLUTION
CONCLUSIVESTATEMENT
OF RESOLUTION
REFERENCE TO ERROR X 5 MODIFI-ITP PHASE I CLASS ANALYSIS CATIONSFINAL REPORT PER IDVP COMPLETE COMPLETE
821213 831012 PGLE Open Item:CLOSED It has been postulated that
under certain assumed fa1luremodes the CCil system may notmeet 1ts 11censing criter1a.
830207 830916 PGGE Open Item:CLOSED Oef1c1enc1es have been 1dent1-
fled 1n the PG8E STRUDL-IIcomputer program. This generalpurpose program 1s used 1nappl1cat1ons such as platforms,base plates, p1pe supportframes, and raceway supports.
830207 831018 POTE Open Item:CLOSED A discrepancy has been 1dent1-
f1ed between recently comp1ledheat loads for the IBOV ac and125V dc switchgear areas andloads used 1n the original designof the Class l vent1lat1on systemserv1ng these areas.
The DCP has prov1ded 1n-formation to the NRC
pertaining to se1smicqualif icat1on, bas1s for6io ocean temperature,and max1mum flow/s1nglefailure analys1s re-quest by the Staff. TheFSAR requ1red rev1s1onsto allow the Class IIpost-LOCA sample coolerto be 1nstalled (isolated)on the Class I CCN
'A'eader.
The deficienc1es 1nSTRUDL-II have beenevaluated to determinethe 1mpact on the analysesthat were performedusing this computerprogram. Ho phys1calmod1f1cat1ons are re-qu1red. Only the p1p1ngd1sc1pl1ne was affectedby these defic1encies.
The system has beenmodified so that the re-qu1red environmentalcondit1ons w111 be met.In addition, all Class IHVAC systems are beingreviewed for adequatedocumentat1on of heatloads. Complet1on 1sbe1ng documented.
The HRC 1ssuedSSER Ho. 16 onAugust 26. 1983.This SSER con-curred withPGandE's resolu-tion to thisissue. The post-LOCA sample cool-er requ1red 1s-olat1on from
'A'eader.Modifi-cat1ons arecompleted andthis OI is closed.
A sample ofaffected calcu-lat1ons revealedthat programerrors did notadversely affector1ginal calcu-lat1on results.No mod1f1cat1onswere requ1redand th1s itemhas been closed.
New fans andductlng have been1nstalled to 1n-crease ventila-t1on flow tothese areas andensure that en-vironmental con-d1t1ons meet thedesign bas1s.This OI 1s closed.
C 100 100
100 NA
100 loo
000iL/0018P-15
Attachment IPage 16
INITIATINGTASK DOCUMENT
IDENTDATE ECD DESCRIPTION
STATUS OF PGandE OPEN ITEMS
STATUSDESCRIPTION OF RESOLUTION
CONCLUSIVESTATEMENT
OF RESOLUTION
REFERENCE TO ERROR A 'X MOOIFI-ITP PHASE I CLASS ANALYSIS CATIONSFINAL REPORT PER IOVP COMPLETE COMPLETE
703<0'em1monthlyStatus ReportNo. 35Open Item 37
703<4'emimonthlyStatus ReportNo. 36Open Item 38
830406 831014 This 1s an admin1strative openCLOSED 1tem to document and track
aspects of the p1ping rev1ewprogram. These aspects 1ncludethe gener1c portions of d1scre-pancies covered by the ex1stingopen items (OIs) and any otherd1screpanc1es not expl1citlycovered by existing EOIs. Alld1screpancies 1n the or1g1nalpiping des1gns have beenaddressed by the Diablo CanyonProspect Correct1ve Action Program(CAP) 1mplemented in August 1982.
Th1s OI has been 1nitiatedto document and track gener1caspects of discrepanc1es founddur1ng the course of the p1p1ngreview work, and to track theresolut1on and complet1on of theent1re DCP CAP for pip1ng. It1s the 1ntent1on of the DCP toclose each of the other pip1ng-related OIs (OI No. l. 5, 7, 9,10, 13, 15, 16, 17, 22, and 29)when resolution of the spec1f1c .1ssues 1n each OI is completed.When the pip1ng rev1ew program1s complete, OI No. 37 will beclosed.
830il2 83ll30 Two rad1ation mon1tors for thefuel handl1ng bu1lding vent11-ation system do not fully complywith Regulatory Guide 1.52.
The follow1ng p1p1ng-related OIs are consideredclosed because resolutionof the spec1f1c issues 1nthese OIs 1s completed:OI Nos. 1, 5, 7, 9, 10, 13,15, 16, 17, 22, and 29.Des1gn Class I large andsmall bore pip1ng was re-analyzed as part of theCAP. Support mod1f1cationswere requ1red but couldnot be attr1buted to onespeci f1c concern. Allcurrent codes and anlyseswere reviewed for previous-ly 1dentif1ed issues andare now qualified.
Instrumentat1on needsto be se1smically qual1-f1ed, and wiring needsto be separatedto comply with theregulatory gu1de.
All rev1ews andredes1gns add-ressed by thisOI have beencompleted. Allsupports havebeen accepted asbu1lt or des1gnsmod1f1ed to ob-tain qualif1ca-tion Th1s OIis closed.
New 1nstrumentloops thatcomply withRegulatory Guide7.52 are be1ng1nstalled. This1s not a fuelload requ1rement.
Sect1ons A2.2.12.2.22.2.32.2.I
l00
70315 Sem1monthlyStatus ReportNo. 37Open Item 39
830509 830916 Existing PGandE calculationsCLOSED 1ndicate that some rupture
restra1nt crushable bumpers1nside the conta1nment maynot be of sufficient length toperform the1r intended des1gnfunction.
The OCP has reevaluatedpipe rupture loads andthe capacity of piperupture restra1nts 1n-cludlng the crushablebumpers. The bumpersare adequate as des1gned.This 1tem has no safetys1gn1f1cance.
The crushablebumpers wereverif1ed for com-pliance with DCP
des1gn criteriaThe bumpers areadequate as de-s1gned and th1s1tem has beenclosed.
CLOSED 100 NAITEM
000iL/0018 P-16
Attachment IPage 17
INITIATINGTASK DOCUMENT
IDENTDATE ECO DESCRIPTION
STATUS OF PGandE OPEN ITEMS
STATUSDESCRIPTION OF RESOLUTION
CONCLUSIVESTATEMENT
OF RESOLUTION
REFERENCE TO ERROR X 'A MODIFI-ITP PHASE I CLASS ANALYSIS CATIOHSFINAL REPORT PER IOVP COMPLETE COMPLETE
70364'em1monthlyStatus ReportHo. 41Open Item 40
70372'em1monthlyStatus Report
~ No. 44Open Item 41
70374'emimonthlyStatus ReportHo. 47Open Item 42
830627 831031"A rev1ew of all safety-relateda1r-operated valves 1denti f1edfour (FCV-364,-365,-602, and-603) wh1ch do not entirelysatisfy functional criteria.Spec1f1cally, upon loss of1nstrument a1r, the valvesshould fa1l '1n pos1tion'ndbe operable for a 11mitedt1me.
830822 831018 This open 1tem 1nvolves theCLOSED adequacy of bolt t1ghtening
requ1rements and slip capacityof bolted connections (as statedin the manufacturer's catalog)1n the track of galvanizedSuperstrut mater1al used 'Insupport of Class I raceways.
830921 840115 The ongo1ng Internal TechnicalReview Program evaluated therupture restra1nts sta1nlesssteel rod end connection des1gnto verify the adequacy of thedouble hex nuts. Test1ng per-formed 1nd1cated prematurestripping of threads at endconnect1ons before reach1ng therequ1red des1gn energy. Inaddit1on these test results1dent1f1ed several rods fromUnit 2 that exhib1t ductilitylower than design requirements.It has been conf1rmed that rodsfrom the same heats are 1nstalled1n Unit l.
The rev1ew of all safety-related a1r-operatedvalves has been completed.Modif1cat1ons for thefour valves w111 beperformed.
Dynamic test1ng has beenperformed to demonstratethat representative supportand des1gn 1nstallat1onsfunction sat1sfactor1lyfor their 1ntendedservice. Modificationsto the 1nstalled supportsas d1ctated by the test1ngprogram have beenperformed.
Eng1neer1ng is completefor hex nut concern; f1eldmod1f icat1ons are be1ngmade. Eng1neering forduct111ty concern 1s com-plete for Un1t l 1ns1deconta1nment; for otherareas invest1gation 1scontinuing>
Class I backupair supply isbe1ng added forfour valves.This is not afuel loadrequirement.
Dynam1c test1nghas been per-formed which as-sures that theas-built supportsperform their 1n-tended safetyfunction. Mod1f-1cat1ons to somesupports were re-qu1red. For sup-ports not coveredby tests, modif1-cations have been1ssued. Based oncomplet1on of thetest program andcomplet1on of mod-1ficat1ons totested supports,th1s OI is closed.
