ML18219D113
| ML18219D113 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 03/14/1978 |
| From: | Tillinghast J Indiana Michigan Power Co, (Formerly Indiana & Michigan Power Co) |
| To: | Case E Office of Nuclear Reactor Regulation |
| References | |
| Download: ML18219D113 (52) | |
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tIKi~JLNF~N MI"lKIIFIX Ill)PP, INDIANA 5 MICHIGAN POWER COMPANY P. O. 8OX 18 80WLlNG GREEN STATION NEW YORK, N. Y. 10004 March.'14
- 1978, Donald C. Cook Nuclear Plant Units 1
G 2
Docket Nos.
50-315 and 50-316 DPR Nos.
58 and 74 Mr. Edson G. Case, Acting Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission "Washington,=D.
C 20555
Dear Mr. Case:
This letter is in response to Mr. Karl R. Goller's letter dated Decembe~
9, 1977 which requested response to the operating history questionnaire 'foi the steam generators hy all PWR licensees.
Enclosed please find a completed questionnaire for the steam generators at the Donald. C.
Cook Nuclear Plant.
The responses to this questionnaire are for'he Unit No.
1 steam generators since we have 'not had any significant operating experience on the Unit 2 steam generators.
The steam generators in both units of the Cook Nuclear Plant are identical.
Very trulv vours, JT:em Vice President Sworn and subscribed to before me this D~
day of March, 1978 in New York Countv, New York Notary Public C I&a ~
cc:
attached}
7~Ci,-'(gOO Ig
cc:
R.
C. Callen G. Charnoff P.
N. Sketetee R. J. Vollen R. Walsh R. N. Jurgensen D. V. Shaller-Bridgman
ENCLOSURE 1
STEAM GENERATOR OPERATING HISTORY (UESTIONNAIRE NOTE:
All percentages should be reported to four significant figures.
I.
BASIC PLANT INFORMATION plant: Donald C.
Cook VLuclear Plant, Unit 1 Startup 'Date: January
/~7K tility:
Indiana a Michigan Power Company Pl ant Locati on:
Bridgman, Michigan Thermal Power Level:
3250 NWe (ovwfi}
39 I HWt Cvv>~P >}
Nuclear Steam Supply System (NSSS) Supplier:
westinghouse Number of Loops:
Steam Generator Supplier, Model No. and Type: Westinghouse" 51 Series S te am Gene rator Number of Tubes Per Generator:
3384 Tube Size and Material: 7/8" Znconel 600 (Tnconel ASNE -SB-163)
II.
STEAM GENERATOR OPERATING'ONDITIONS
~N1 tl Temperature:
512.2'low Rate:
33.9 x 10 lb./hr; Allowable Leakage Rate:
As per Tec Specs 6
Prima'ry Pressure:
2250
.l-GPM.total Primary-to-secondary leakage through al1 steam generators Secondary Pressure:
758 psia and 500 gallons per-day throug'a.
any-one Steam Generator.
Design Hase LOCA Max. Delta-P:
No specif ic analysis has been done since the steam generators are not Main Stea~
Line Break (MSLB) Max. Delta-P:
in a degraded condition,
~ II.
STEAM GENERATOR SUPPORT PLATE INFORMATION Material:
SA-285 Grade C
Design Type:
Design Code:
Solid drilled Plate tragical for the Westinghouse 51 Series S team Generator Dimensions:
6 33
~ 9
+
10 lb Tube Hole Dimensions
~
. 891 g.906" Dia 4
~ 891" Flow Hole Dimensions:
.750" 4.766" 750al Dia
IV.
STEAM GENERATOR BLOMOOMN INFORMATION Frequency of Slowdown:
Continuous Normal 8lowdown Rate:
20 gpm/ S/G Blowdown Rate w/Condenser Leakage <>:5gpm/S/G Chetiical Analysis Results Resul ts Parameter Control Limits Normal Values pH Conductivity Cation Conductivity Sodium Aoa.onia Phosphate Chloride Free Hydroxide Silica 8.8 9.2
< 2. 0 pmho
< 100 ppb
< 0.15 ppm
< 0.15 ppm
< 1.0 ppm 8.9 5.0 1.0 7
0.5 Nil Nil Nil Nil pmho gmho ppm Y.
k(ATER CHEHISTRY INFORNATI ON Secondar Mater Type of Treatment and Effective Full Power (EFP) Honths of Operation:
AVT Typical Chemistry or Impurity Limits:
C Feedwater Oxygen Typical Chemistry c
Impurity imits:
Hydrazi>e "rpH Condenser Coolin
'. ater Typical
< 10 ppb 3-5.ppb residual
'.2 Typical Typical Chemistry or Impurity 'mits:
pH 7.2 Na 100 300 ppb Demineralizers - Type:
None Cooling Tower (open cycle, c'osed cycle or none):
0 TURBINE STOP YALYE TESTING {applicable to Babcock 5 Milcox (BRM) S.G. only)
Fre uenc of Testin Actual:
Manufacturer Recommendation:
Power Level At Mhich Testin Is Conducted Actual:
Manufacturer Recommendation:
Testin Procedures (Stroke len th, stroke rate, etc.
Actual:
Manufacturer Recommendation:
STEAff GENERATOR TUBE DEGRADATION HISTORY (The foll'cuing is to be repeated for each scheduled ISI)
Inservice Inspection (ISI') Date: capri] ]3 to f/ay l l976 Number of EFP Days of Operation Since Last Inspection:
266.37
{The following is to be repeated for each steam generator)
Steam Generator Number:
Percentage of Tubes Inspected At This ISI: 22 Percentage of Tubes Inspected At This ISI That Had Been Inspected At The Previous Scheduled ISI: H/~
Percentage of Tubes Plugaed Prior to This ISI:
'<ONE Percentage of Tubes Plug~ed At This ISI: HONE Percentage of Tubes= Plugged That Did )(ot Ex:eed Degradation Limits:
HON-.
Percentage o( Tubes Plugged As A Result of Exceedance of Degradation Limits
~
HGL'IE Sludge Layer Material Chemical Analysis Resul ts:
Sludge Lancing (date):
HOT DONE Ave. Height of Sludge Before Lancing:
3 l/2" ~~fa>. Localized Inletside Outlet side not Re corded Ave. Height of Sludge A~ter Lancing:n/a Replacement, Retubing or Other Remedial Action Considered:
(Briefly Specify Details)
HONE Support Plate Hour glassing: >ON~
Support Plate Islanding:
Tube Metalurgical Exam Results:
NOz DONE
4 Fr tting or Vibration in U-Bend Area (not applicable to BAN S.G.)
AS OF ~4 Percentage of Tubes Plugged Other Preventive Measures i<OilF Wasta e/Cavitation Erosion AS OF ~4 intr:Lec:
{Reneat th(S infenraticn fOr the COld leg On CctllhuStiun Gngineering (C.G.)
and Westinghouse (g) S.G.)
Area of Tube Bundle (1) 5 of Tubes Affected by Wastage/Cavitation Erosion X of Tubes Plugged Due to Exceedance of Allowable Limit (Z)
X of Tubes Plugged Tnat Did not Exceed Degradation Limit Location Above Tube Sheet (3)
Max. Wastage/Cavitation Erosion Rate for Any Sing'le Tube (Tube Circum. Ave) (Mills/Month)
Max. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum.
Ave) (Mills) b c
d e
sslOsl VtOtV V/A SM1E FOR COLD LEG Cracking AS OF ~4 Caustic Stress Corrosion Induced in C.E.
and W S.G.
Flow induced Vibration Caused in B&W S.G.
Crackino (Con't)
~Rot te inepeat this information fo-, the cold 'leg on C.E.
and M S.G-.)
Area of Tube Bundle (1) d e
5 of Tubes Affected By Cracking
~ of Tubes Plugged Due to Cracking 5 of Tubes Plugged That Did Not Exceed Degradation Limit Location Above
( 3)
'Tube "Sh'eet Rate of Leakage Frcm Leaking Cracks (gpm)
NOI Noi NOi S Z~~K FOR COLD L G
~Dentin (Hot applicable to B&M S.G.} AS OF ~(4
~Hot te (Repeat this information for the cold leg on C.E.
and M S.G.)
Area of Tube Bundle (1) c d
~ of Tubes Affected by Denting K of Tubes Pl=gged.Oue to Exceedance o; Allowable Limit (2) 5 of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)
Max. Denting Rate for Any Sing le Tube (Tube Circum. Ave) (Mills/Month)
Max. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Mills)"- s NON NON NON V/2 V/A N/a Rrde Fo Col~ ")
Denting (Con't) Support Plate Levels Max. Denting in Any Single Tube in Bundle Area (Tube Ave ) (i<ills ) (1) 5 of Tubes Affected By Denting in Bundle Area 1
2' 5
6
~ 7 8
9 10 11 12 il/A S AI'I" FOR COLD LEG
VI.
TURBINE'STOP YALYE TESTING (applicable to Babcock
~ Hilcox (8aM) S.G. only)
Freouenc of Testin Actual:
Manufacturer Recommendation:
Power Level At Mhich Testin Is Conducted Actual:
Manufacturer Recommendation:
Testin Procedures (Stroke len th, stroke rate, etc.
Actual:
Manufacturer Recommendation:
YII.
STEAM GENERATOR TUBE DEGRADATION HISTORY (The following is to be repeated for each scheduled ISI)
Inservice Inspection (ISI) Da<<: april 13 to Hay 1, 1976 Number of EFP Days of Operation Since Last Inspection: 266.37
'The following is to be repeated for each steam generator)
Steam Generator Number: 2 Percentage of Tubes Inspected At This ISI:
22%
Percentage of Tubes Inspected At This ISI That Had Been Inspected At The Previous Scheduled ISI: ~/~
Percentage of Tubes PlugqeC Prior to This ISI:
~o-<~
Percentage of Tubes Plugged At This ISI:
-'~0'-~-
Peroentage oi,Tubes Plugged That Did Not Exceed Degradation Limits:
Percentage cf Tubes Plugged As A Result of Exceedance of Degradation Limits:
'10'-1E Sludge Layer Material Chemical Analysis Results:
qpgp Sludge Lancing (date):
>roT Do:tz ve Hei ht of Siud e Before Lancin 'Inlet Side) Outlet side not reco ded Ave. Height of Sludge 4~ter Lancing:
Replacement, Retubing ~r Other Remedial Action Considered:
(Briefly Specify Detai is)
."100K Support Plate Hourgiassing:
go~-.
Support Plate Islanding-.,p~-.
Tube Metaiurgical Exam Results:
'lOT DO~E
Fretting or Vibration in U-Bend Area (not applicable to BKM S.G.)
AS OF ~4 Percentage of Tubes Plugged Other Preventive Measures VEOiVE Vi/A Hasta e/Cavitation Erosion AS OF ~4 Hot:Leo:
{Repeat this information for the coid ieg on Coa>hustion Engineering
{C.E.) and Westinghouse
{H) S.G.)
Area of Tube Bundle (1)
X of Tubes Affected by Wastage/Cavitation Erosion X of Tubes Plugged Oue to Exceedance of Allowable Limit (2) 5 of Tubes Plugged That Did not Exceed Degradation L'mi."
Location Above Tube Sheet (3)
Hax. Wastage/Cavita
.ion Erosion Rate for Any Single Tube (t'ube Circum.
Ave) (Nilis/Nonth)
Max. Mastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Nills).
b c
d VE VE/
Same for Cold Leg Cracking AS pf ~a Caustic Stress Corrosion Induced 'in C.E.
and W S.G.
Flow Induced Vibration Caused in B8W S.G.
~Crackin
'(Con't)
~not Le:
<nepeat this information for the cold leg on C.E.
and M S.G.)
Area of Tube Bundle (l)
.c' X of Tubes Affected By Cracking X of Tubes Plugged Oue to
.Cracking X of Tubes Plugged That Oid Not Exceed Degradation Limit Location~Ah'ove
( 3)
Tube Sheet d
Rate of Leakage From Leaking Cracks (gpm) iJON NON NON.
~Dentin (Not.app'licahle to GSM S.G.)
AS OF ~4
~ot I'e<O:
(Repeat this information for the cold Ieg on C.E.
and M S.G.}
Area of Tube Bundle (l) c d
'e X of Tubes Affected by Denting 5 of Tubes Plugged Oue to Exceedance of Allowable
. Limit (2) 5 of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From
~ Leaking Dents (gpm)
Max. Denting Rate
=or Any Single Tube (Tube
, Circum.
Ave) (Mills/Month)
Hax. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (NilIs)'
iNON NON.
SAi~K FOi; COLD LEG
Denting (Con't) Support Plate Levels Max. Denting in Any Single Tube in Bundle Area (Tube Ave) (Mills) (1) c d
5 of Tubes Affected By Denting in Bundle Area b
1 2
3 5
6 7
8 10 11 12 SAI'u FOR COLD LEG
TURBINE STOP YALYE TESTING (applicable to Babcock 5 M<lcox
{SINEW) S.G. only)
Fre uency of Testin Actual:
Manufacturer Recommendation:
Power Level At Which Testin Is Conducted Actual; Manufacturer Recommendation:
V/A Testin Procedures (Stroke len th,
.stroke rate, etc.
Actual:
Manufacturer Recommendation:
STEAM GENERATOR TUBE DEGRADATION HISTORY (The following is to be repeated for each scheduled ISI)
Ins rvice Inspection (ISI) Date: Aaril 13 to Hay 1, 1976 l
Number of. EFP Days of Operation Since Last Inspection:266.37 (The following is to be repeated for each steam generator)
Steam Generator Number:
-Percentage of Tubes. Inspected At This ISI:
4O~
Percentage of Tubes Inspected At This ISI That Had Been Inspected At The Previous Scheduled ISI:
H/A Percentage of Tubes Plugged Prior to This ISI NOTE Percentage of Tubes Plugged At This ISI:
Percentage of Tubes Pl.ugged That Did Not Exceed Degradation Limits:
Percentage or Tubes Plugged As A Result of Exceedance of Degradation Limits:
wpNE Sludge Layer Material Chemical Analysis Results:
qpqE Sludge Lancing (date):
NOT DONE
,ve. Height of Sludge Before Lancing.
1/
" to 4" Max. Lo<ali<<d i>let side 1 to 2" t!ax. Broad Area Outle+
Ave. Height of Sludge Arter Lancing: w/A Side Replacement, Retubing or Other Remedial Action Considered:
(Briefly Specify Details)
HONE Support Plate Hourglassing:~p<E Support Plate Islanding:
Tube Metalurgical E~am Results:
NOT DO<<E
4-k Fretting or Vibration in U-Bend Area (not applicable to B&W S.G.)
AS OF ~4 Percentage of Tubes Plugged Other Preventive H asures NONE N/A l<asta e/Cavitation Erosion AS OF ~4
~Hot:Le
{Repeat this information for the cold leg on Combustion Engineering (C.E.) and Westinghouse (M) S,G.)
~
Area of Tube Bundle (1)
X of Tubes Affected by Wastage/Cavi tati on Eros ion 5 of Tubes Plugged Due to'xceedance of Allowable Limit (2)
X of Tubes Plugged That Did not Exceed Degradation Limit L'o~ation Above Tube Sheet (3)
Max. Wastage/Cavitation Erosion Rate for Any Single Tub'e (Tube Circum. Ave) (Hills/Month)
Hax. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Hills) b c
d e
NO N/
N/
N/Z SMK FOR COLD LEG
".acking AS PF ~4 Caustic Stress Corrosion Induced in C.E.
and M S.G.
Flow Induced Vibration Caused in B&W S.G.
~Crackin (Con't)
~Rot Le
<nepeat this information for the cold leg on C.E.
and N S.G.)
Area of Tube Bundle a
b c
d e
X of Tubes Affected By Cracking X of Tubes Plugged Due to Cracking X of Tubes Plugged That Did Not Exceed Degradation
- Limit, Locat)on Above
( 3)
Tube Sheet Rate of Leakage From Leaking Cracks (gpm)
NON O%
NO."g N/
N/E S~
FOR COLD LEG r
~Dentin (Not applicable to G&N S.G.} AS OF ~4
~Not Le (Repeat this information for the cold leg on C.E., and ii S.G.)
Area of Tube Bundle (l) a b
c.
d
'e X of Tubes Affected by Denting
.5 of Tubes Plugged Due to Exceedance of Allowable Limit (2) 5 of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)
Hax. Denting Rate for Any Single Tube (Tube Circum. Ave) (Hills/Month)
Max. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Mills)'
NO E
Nn, F NO! E N/A N/a S2QK FOR COLD LEG
Denting (Con't)
>>6-Support Plate Levels tlax. Denting in Any Single Tube in Bundle Area (Tube Ave) (Mills) (1) c d
X of Tubes Affected By Denting in Bundle Area b
1 2
3 5
6
~ 7 8
9 10 11 12 N/A SANE
- FOP, i
COLD LEG
TURBINE STOP YALYE TESTING (applicable to Babcock 5 Wilcox (BbW) S.G. only)
Fre uenc of Testin Actual:
a Manufacturer Recorrrnendation:
Power Level At Which.Testin Is'Conducted il ~ A.
Actual:
Manufacturer Recommendation:
Testin Procedures (Stroke len th, stroke rate, etc.
Actual:
Manufacturer Recommendation:
STEAM GENERATOR TUBE DEGRADATION HISTORY (The following is to be repeated for each scheduled ISI)
Inservice Inspection (ISI) Date:
pppil ]3 to f$ay l
]976 Number of EFP Days of Operation Since Last Inspection: 266.37 (The following is to be= repeated for each steam generator)
Steam Generator Number:
Percentage of Tubes Inspected At This ISI:
40~
Percentage of Tubes Inspected At This ISI That Had Been Inspected At The Previous Scheduled ISI:
Percentage of Tubes Plugged Prior to This ISI:
.03$
(1 tube)
Percentage of Tubes Plugged At This ISI:
NONE Percentage of Tubes Plugged That Did Not Ex:.eed Degradation Limits:
up~>;
Percentage of Tubes Plugged As A Result of Exceedance of Degradation Limits Sludge Layer Material Chemical Analysis Results:
'~ONi"-
Sludge LancirIg {date):
3 to 4" Max. Localized Xnlet Side Ave. Height of Sludge Before Lancing'utlet side not done Ave. Height of Sludge After Lancing:
Replacement, Retubing or Other Remedial Action Consi~ered:
{Briefly Speci fy Details)
Support Plate Hourgl assing:
KOHL'upport Plate Islanding:
lrO:rE Tube Metalurgical Exam Results:gQ DpqL'
Fretting or Vibration in U-Bend Area (not applicable to BN S.G.)
AS OF ~4 Percentage of Tubes Plugged Other Preventive Measures NONE NONE Hasta e/Cavitation Erosion AS OF ~4 N/A
~Hot:Le
{Repeat this information for the cold ieg on Combustion Engineering (C.E.) and Westinghouse (W) S.G.)
Area of Tube Bundle (1)
X of Tubes Affected by Wastage/Cavitation Erosion X of Tubes Plugged Due to Exceedance of Allowable Limit (2)
X of Tubes Plugged That Did not, Exceed Degradation Limit Location Above Tube Sheet (3)
Max. Mastage/Cavitation Erosion Rate for Any Single Tube (Tube Circum. Ave) (Mills/Month)
Max. Mastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Mills) b c
d e
NO NOi NO N/
SMTE FOR
~ COLD LEG Cracking AS OF ~4 Caustic Stress Corrosion Induced in C.E.
and W S.G.
Flow Induced Vibration Caused in BEW S.G.
,r
~Crackin (Con't)
~Hm te
~nepeat this information 'for the cold leg on C.E.
and M S.G.)
Area of Tube Bundle (l) b c
d e
5 of Tubes Affected By Cracking 5 of Tubes Plugged Due to Cracking X of Tubes Plugged That Did Not Exceed Degradation Limit Location Above
( 3)
Tube Sheet Rate of Leakage
- From,
. Leaking Cracks (gpm) t ONE 1 'ONE t ONE r/ A
- /A Same F.or Cold Leg
~Oentin (Not applicable to BEM S.G.) AS OF ~4
~Hot Le (Repeat this information for the cold leg on C.E. and M S.G.)
Area of Tube Bundle (1) a b
d e
K.of Tubes Affected by Denting X of Tubes Plugged Due to Exceedance of Allowable Limit (2)
X of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)
Max. Denting Rate for Any Single Tube (Tube Circum. Ave) (Mills/Month)
Max. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Mills)'O HO NOt~
N/A SAME FOR COLD LEG
Denting (C on '
) Support Plate Levels Max. Denting in Any Single Tube in Bundle Area
,(Tube Ave) (Mills) (1) 5 of Tubes Affected By Denting in Bundle Area c
r 1
2 3
5 6
~ 7 8
9 10 11 12 Same for Cold Leg
TABLE -KEY NOTE:
All percentages r efer to the percent of the tubes within a given area of the tube bundle.
Area of the Tube Bundle No. of Tubes Within the Area~
a.
Periphery of Bundle (wi/20rows for B&M; wi/10 rows for C.E.
and M) b.
Patch-Plate (wi/4 rows) c.
Hissing Tube Lane (B&M only)
(wi/5 rows)
Flow Slot Areas (C.E.
and M only) wi/10 rows) d.
Wedge Regions (C.E.
and M only)
(wi/8 rows) e.
Interior of Bundle (remainder of tubes) 1204 366 934 242 1304 (2)
Allowable Limit for Wastage/Cavitation Erosion:
40-o of tubewall Allowable Limit For Dentinc:
'Hot Determined.
",<o denting has been detected in these units.
(3) 1.
Specifies area between the tube sheet and the first support plate 2.
Specifies in the foll a ing locations: (list the additional locations )
Wastage/Cavitation Erosion 9/A Cracking:
.~~A To date these units have not shown signs of these items (4)
April 13 to Pay 1,1976.
Specify the date of the inspection for which results have been tabulated.
v
'I 0
93 9f Bp 676-83'l 79 77 't5 737l 10 L7 I5 b5 LI 5$'5~ 5~-> ~1<9 94 92 59 GZ Qo 78 74 7Z
'TO ITS ~&
~is Lc'~ "3 5I 52 1
VE.
STOP VALVE TESTING {applicable to Babcock
& Vilcox (B&W) S.G. only)
VII.
Fre uenc of Testin Actual:
Manufacturer Recommendation:
Power Level At Which Testin Is Conducted N. A.
Actual:
Manufacturer Recommendation:
Testin Procedures (Stroke len th, stroke rate, etc.)
Actual:
Manufacturer Recommendation:
STEAM GENERATOR TUBE DEGRADATION HISTORY (The following is to be repeated for each scheduled ISI)
Inservice Inspection (ISI) Date:
February 1977 Number of EFP Days of Operation Since Last Inspection:
195.57 (The following is to be repeated for each steam generator)
Steam Generator Number:
1 Percentage of Tubes Inspected At This "ISI:
gONE Percentage of Tubes Inspected At This ISI That Had Been Inspected At The Previous Scheduled ISI: N/A Percentage of Tubes Plug:,ed Prior to This ISI:
NO~E '";"
Percentage of Tubes Plugged At This ISI:
NONE Percentage o.
Tubes Plugged That Did Not Exceed Degradation LimitsÃoHE Percentage of Tubes Plugged As A Result of Exceedance of Degradation Limits: '<O~E
(
Sludge Layer Material Chemical Analysis Results:
See attache<
ana'r yogis
, Attachment "A"
Sludge Lancing (date):
February 1977 Ave. Height of Sludge E
ore Lancing: <<<< ~<<>><<<
Ave. Height of Sludge ~fter Lancing:
Replacement, Retubing or Other Remedial Action Considered:
{Briefly SPeci fy Detail s)
..ro!gE Support Plate Hourglassing:
HONE Support Plate Isl anding: 'ro'-~E
~-
Tube Metalurgical Exam Results:
!got Dcne
Fretting or Vibration in U-Bend Area (not applicable to B&W S.G.)
AS'OF ~4 Percentage of Tubes Plugged Other Preventive Measures HONE il.A.
Wasta e/Cavitation Erosion AS OF ~4
~Wot:Le:
{Repeat this information for the cold leg on Coiabustion Engineering (C.E.) and Westinghouse (W) S.G.)
Area of Tube Bundle (1)
X of Tubes Affected'y Wastage/Cavitation Eton 'on r
X of Tubes Plugged Due to Exceedance of Allowable Limit (2) 5 of Tubes Plugged That Did not Exceed Degradation Limit Loc=-'ion Above Tube Sheet (3)
-Max. -Wastage/Cavitations Erosion Rate for Any Single Tube (Tube Circum. Ave) (Mills/Month)
Max. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Hills).
b c
d e
ONE NE Same for Cold Leg
~Cra<:kin Ag pF ~p Caustic Stress Corrosion Induced in C.E.
and W S.G.
Flow Induced Vibration Caused in B&W S.G.
-5<<
~Crackin (Con')
~not te:
{nepeat this information for the cold leg on C.E.
and M S.G.)
Area of Tube Bundle b
d e
à of Tubes Affected By Cracking X of Tubes Plugged Due to Cracking
~ of Tubes Plugged That Did Not Exceed Degradation Limit Location Above (3)
Tube Sheet Rate of Leakage From Leaking Cracks (gpm) no NO!g NOi. "
Same for Cold Leg
~Dentin (Mot applicah'le to GEM S.G.) AS OF ~4 Hot te<O:
{Repeat this information for the cold Ieg on C.E.
and M S.G.)
Area of Tube Bundle (1) a b
c d
5 of Tubes Affected by Denting 5 of Tubes Plugged Due to Exceedance of Allowable Limit (2)
X of Tubes Plugged
- That, Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)
Max. Denting Rate for Any Single Tube (Tube Circum. Ave) (Hills/Month)
Max. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Mills)""t NON NONi NON N/A N/A Same for Cold Leg
Denting (Con't)
- 6,-
Support Plate Levels Max. Denting in Any Single Tube in Bundle Area (Tube Ave) (Mills) (1)
~ of Tubes Affected By Denting in Bundle Area b
c d
e 1
2 3
5 6
7 8
9'0 11 12 S arne for Cold Leg
VE.
TURBINE STOP VALVE TESTING (aPPlicable to Babcock 5 Wilcox (BSM) S.G. only)
Freouenc of Testin Actual:
Manufacturer Recommendation:
Power Level At Which Testin Is Conducted Actual:
Manufacturer Recommendation:
N. A.
VII.
Testin Procedures (Stroke len th, stroke rate, etc.
Actual:
Manufacturer Recommendation:
STEAM GENERATOR l'UBE DEGRADATION HISTORY (The following is to be repeated for each scheduled ISI)
Inservice Inspection (ISI) Date:
February'977 Number of EFP.
Days of Operation Since Last Inspection: 195.57 (The following is to be repeated for each steam generator)
Steam Generator Number:
Percentage of Tubes Inspected At This ISI:
NONE Percentage of Tubes Inspected At This ISI That Had Been Inspected At The Previous Scheduled IS'.:
Percentage of Tubes Plugged Prior to This ISI:
Percentage of Tubes Plugged At This ISI:
Percentage o'ubes Plugged That Did Not Exceed Degradation Limits: NONE Percentage of Tubes Plugged As A Result of Exceedance of Degradation Limits:
NONE Sludge Layer Material Chemical Analysis Results: See attached analysis Sludge Lancing (date): February 1977 Ave. Height of Sludge Before Lancing:
Not recorded Ave. Height of Sludge A ter Lancing: Not Recorded Replacement, Retubing or Other Remedial Action Considered:
(Briefly Specify Details)
NONE Support Plate Hourglassing:
NO;~E Support Plate Islanding:
Tube Metalurgical Exam Results: >O<
DO<E
Fretting or Vibration in U-Bend Area (not applicable to BOW S.G.)
AS OF ~4 Percentage of Tubes Plugged Other Preventive Measures NONE N. A.
Wasta e/Cavitation Erosion AS OF ~4
~Hot:Le
{Repeat this information for the cold leg on Coa~hustion Engineering (C.E.) and Westinghouse (W) S.G.)
Area of Tube 'Bundle (1) 5 of Tubes Affected by Wastage/Cavitation Erosion X of Tubes Plugged Due to Exceedance of Allowable Limit (2) 5 of Tubes Plugged That Did not. Exceed Degradation Limit Loca-':ion Above Tube Sheet (3)
-- Max. Mastage/Cavitation Erosion Pate for Any Single Tube (Tube Circum. Ave) (Mills/Month)
Max. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Mills) b c
d e
NOi E NO E NO> E N/
N/Z Same for Cold Leg
~Cra".'Gn AQ QF ~4 Caustic Stress Corrosion Induced in C.E.
and M S.G.
Flow Induced Vibration Caused in BKW S.G.
>>5-
~Crackin (Con't)
~not Le
<aepeat this information for the cold leg on C.E.
and N S.G.)
Area of Tube Bundle a
b c
X of Tubes. Affected By Cracking X of Tubes Plugged Oue to Cracking.
5 of Tubes Plugged That Did Not Exceed Degradation Limit Location Above
( 3)
Tube Sheet Rate of Leakage From Leaking Cracks (gpm)
N NE N
NE N NE N A N/d SANE FOR COLD LEG
~Dentin (Not applicable to G&N S.G.} AS OF ~4
~Not Le (Repeat this information for the cold leg on C.E.
and N S.G.).
Area of Tube Bundle (1) c d
~ m 5 of Tubes Affected by Denting X of Tubes Plugged Oue to.
Exceedance of Allowable Limit (2) 5 of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)
Max. Denting Rate for Any Single Tube (Tube Circum. Ave) (Hills/Month)
Max. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Hills)"""
NON!
NON.
NON N/A N/A N/A SAME FOR COLD LEG
Den+ing (Con't) Support Plate Levels Max. Denting in Any Single Tube in Bundle Area (Tube Ave) (Mills) (1) 5 of Tubes Affected By Denting in Bundle Area b
c d
1 2
3 5
6
,. 7 8
9 10 11 12
)
SAIiE FOR COLD
3 TURBINE STOP YALYE TESTING (aPPlicable to Babcock
& Mi1cox (B&W) S.G. only)
Fre uenc of Testin Actual:
Manufacturer Recommendation:
Power Level At Which Testin Is Conducted Actual:
Manufacturer Recommendation:
N.A.
Testin Procedures (Stroke len th, stroke rate,. etc.
Actual:
Manufacturer Reconmendation:
STEAM GENERATOR TUBE DEGRADATION HISTORY (The following is to be repeated for each scheduled ISI)
Inservice Inspection (ISI) Date:
~eb<<ary 1977 Number of EFP Days of Operation Since Last Inspection:
195 57 (The following is to be repeated for each steam generator)
Steam Generator Number:
-3 Percentage of Tubes Inspected At This ISI:
38. 1 Percentage of Tubes Inspected At This ISI That Had Been. Inspected At
'he Previous Scheduled ISI:
Percentage of Tubes Plug:ed Prior to This ISI:
Percentage.
of Tubes Plugged At This ISI:
Percentage cf Tubes Plugged That Did Not Exceed 'Degradation Limits:
Percentage of Tubes Plugged As A Result of Exceedance of Degradation Llmlts:
h Sludge Layer Material Chemical Analysis Results<<<<<tached Analysis Att h
t "A" Sludge Lancing (date):
February 1977 4 If Ave. Height of Sludge 6:fore Lancing'" i!'
1 d
tl t d
'" Hax. localized outlet side Ave. Height of Sludge Pfter Lancing: 3" ~lax. Localized inlet side*
s ie '
don.
~
~
Replacement, Retubing or Other RemediBtkt'ron Yorisiferea: 'briefly Specify Details) '~0'~E Support Plate Hourgl assing:
No,gE Support Pl ate IsI anding:
I>0:fz Tube Metalurgical Exam Results:
Results believed not accurate pending furtiier review of next in pec-tion.
Fretting or Vibration in U-Bend Area (not applicable to Bt'tW S.G.)
AS OF ~4 Percentage of Tubes Plugged Other Preventive Measures NOt'E N/A Wasta e/Cavitation Erosion'S OF ~4
~Hot:Le:
(Repeat this infortration for the coId 1eg on Coiahnstion Engineering (C.E.) and Westinghouse (W) S.G.)
Area of Tube Bundle (1)
X of Tubes Affected by Wastage/Cavitation Erosion X of Tubes P lugged Due to Exceedance of Allowable Limit (2)
X of Tubes Plugged That Did not Exceed Degradation Limit Location Above Tube Sheet
{3)
Max. Wastage/Cavitation "Erosion Rate for Any Single Tube (Tube Circum.
Av'e) (Mills/Month)
Max. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Mills).
b c
d e
NO E NO E same for cold leg Cracking AS pF ~g Caustic Stress Corrosion Induced in C.E.
and M S.G.
Flow Induced Vibration Caused in BEM S.G.
~Crackle (Con '
}
~Rot Le
- . <nepeat this information for the cold leg on C.E. and ll S.G.}
Area of Tube Bundle G
d
'5 of Tubes Affected By Cracking 5 of Tubes Plugged Due to Cracking I of Tubes Plugged That Did Not Exceed Degradation Limit Location Above
( 3)
Tube Sheet Rate of Leakage From Leaking Cracks (gpm)
-no NC PE SANE FOR COLD LEG
~Dentin (Hot applicable.ta BSM S.G.} AS OF ~4
~Hot Le (Repeat this information for the cold 'leg on C.E; and M S.G.}
-Area of Tube Bundle (1) c d
5 of Tubes Affected by Denting X of Tubes Pl(.ged Due to Exceedance of Allowable Limit (2)
X of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)
Max. Denting Rate for Any Single Tube (Tube Circum. Ave) (Hills/Month)
Max. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Hills)'" >
N N
NE NE NE SA&1E FOR COLD LEG
Oenting (Con't) Support Plate Levels Max. Oenting in Any Single Tube in Bundle Area (Tube Ave) (Hills) (1) 5 of Tubes Affected By Oenting in Bundle Area b
1 2
3 6
.7 8
9 10 11 12 SAt& FOR COLD LEd
VI.
TURBINE STOP VALVE TESTING (aPPlicable to Babcock 5 Wilcox (BPA) S.G. only)
Fre uenc of Testin Actual:
Manufacturer Recommendation:
Power Level At Which Testin Is Conducted Actual:
Manufacturer Recormendation:
N. A.
Testin Procedures (Stroke len th, stroke rate, etc.
Actual:
Manufacturer Recommendation:
STEAf1 GENERATOR EUBE DEGRADATION HISTORY
{The following is to be repeated for each scheduled ISI)
Inservice Inspection (ISI) Date:
peQruary 1977 Number of EFP Days of Operation Since Last Inspection:
195.57 (The following is, to be repeated for each steam generator)
Steam Generator Number:.
Percentage of Tubes Inspected At This ISI:
38 Percentage of Tubes Inspected At This ISI That Had Been Inspected At.
The Previous Scheduled ISI:All Percentage of Tubes Plugged Prior to This ISI:
'Percentage of, Tubes Plugged At This ISI:
gp~iE Percentage of Tubes Plugged That Did Not Exceed Degradation Limits:
5$ O~X-E Percentage of Tubes Plugged As A Result of wceedance of Degradation Limits:
Sludge Layer Material Chemical Analysis Results:
See attached Analysis Sludge Lancing (date):
February 1977
~ Attachment "A"
ancin
. 4" Yiax. Localized Inlet Side Ave. Height of Sludge Before Lancing: 2-isa~.'ocalized outle~ side Ave. Height of Sludge After Lancing:lot recorded Replacement, Retubing or Other Remedial Action Considered:
{Briefly Speci fy Detai 1 s)
NONE Support Plate Hourglassing:
NONE Support Plate Islanding:
NOllE Tube Metalurgical Exam Results: qOT Dp
Fretting or Vibration in U-Bend Area (not applicable to BKW S.G.)
AS OF ~4 Percentage of Tubes Plugged Other Preventive Measures NONE N/A Wastage/Cavitation Erosion AS OF ~4
~Hot:Le (Repeat this information for the cold leg on Combustion Engineering (C.E.) and Westinghouse (W) S.G.)
Aria of Tube Bundle (1)
. X of Tubes Affected'y Wastage/Cavitation Erosion X of Tubes Plugged Due to Exceedance of Allowable Limit (2)
X of Tubes Plugged That Did not Exceed Degradation Limit Location Above Tube Sheet (3)
Max. Wastage/Cavitation Erosion Rate for Any Single Tube (Tube Circum. Ave) (Hills/Month)
Max. Wastage/Cavitation Erosion
.in Any Single Unplugged Tube (Tube Circum. Ave) (Mills) b c
d e
NON NON NON N/A N/A COLD LEG Cracking AS OF ~4 Caustic Stress Corrosion Induced in C.E.
and W S.G.
Flow Induced Vibration Caused in BSW S.G.
~Crackin (Con't)
~R5t Le:
deepest this information for the cold leg on C.E.
and N S.G.)
Area of Tube Bundle b
c X of Tubes Affected, By Cracking X of Tubes 'Plugged Due to Cracking X of Tubes Plugged That Did Not Exceed Degradation Limit Location Above
( 3)
Tube Sheet Rate of Leakage From Leaking Cracks (gpm)
H
&VE N HE SAl~ FOR COLD LEG
~Dentin (Not applicable to B&M S.G.} AS OF ~4
~Hot Le :
(Repeat this information fot the cold leg on C.E.
and
'I< S.G.)
Area of Tube Bundle (1) 5 of Tubes Affected by Denting 5 of Tubes Plugged Due to Exceedance of Allowable Limit (2)
'5 of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)
Max. Denting Rate for Any Single Tube (Tube Circum. Ave) (Hills/Nonth)
Max. Denting in Any Single Unplugged Tube (Tube
'ircum. Ave) (Mills);"f a
b c
&VO tE ViO lE iVO lE V/
N/
SAlK FOR COLD LEG
Denting (Con't) Support Plate Levels Max. Denting in Any Single Tube in Bundle Area (Tube Ave) (l1ills) (1) 5 of Tubes Affected By Denting in Bundle Area 1
2 6
7 8
9 10 11 12
4
~
~
TABLE KEY NOTE:
All percentages refer to the percent of the tubes within a given area of the tube bundle.
Area of the Tube Bundle No. of Tubes Within the Ar'ea~
a.
Periphery of Bundle (wi/20rows for BRM; wi/10 rows for C.E.
and W)
"b.
- Patch=Pl.ate
~
(wi/4 rows) c.
Missing Tube Lane (BIKM only)
(wi/5 rows) c.
Flow Slot Areas (C.E.
and W only) wi/10 rows) d.
Wedge Regions (C.E.. and M only)
(wi/8 rows) e.
Interior of Bundle (remainder of tubes) 1204 934 242 1304 (2)
Allowable Limit for Wastage/Cavitation Erosion:Aof wall.
. Allowable Limit For Denting:Not determined, No denti: g has been detected in these units.
1.
Specifies area between the tube sheet and the first support plate 2.
Specifies in the followi.)g locations: (list the addit ivnal locations)
(4)
Wastage/Cavitation Erosion:
- ,~/A Cracking: ggA To date the Unit 1 Stm.
Gen.
have not shown signs of these
- item, Specify the date of the inspection for which results have been tabulated.
Feb ruary 19 77.
- NUMBER OP TRIBES EXCEEDS 3380 DUE xQ OVERLAP OP AREAS AS DEDICATED 0~it THE ATIACHED TUBESHEET ~SP.
'I
~
C 93 9f 89 57 ".- 83 Rt 79 77 75 73 7l
< 0 L7 D b5 kl 59 57 55 3 5/ 49 47
'4 92 Vo 8Z 78 7s 74 7Z 70 ~8 ~& L4 ~i~ tu'~ 58 Cg 0 52 5o 48 4.':
~
I
~
~ I I
I I I
)
1
~
~
~
I I
I AA
YIII.
SIGNIFICANT STEAM GEHERATOR ABHOPJQL OPERATIOHAL EYENTS DATE SUM~MRY NONE (Include event description; unscheduled I5I results, if performed; and subsequent remedial actions)
"IX-.
CONDENSER -INFOR eTIOH Condenser, Material Rate (gp
)
Date Tube Leakage Detectable Limit Detection Method Copper Fi Stain les Steel O.l pmho incre in cation con-ductivity can detect. a.con-denser leak.
<< Cation Con-ductivity increase dc-
'ected by isolating halves See attached lis of ates of con-den er leaks.
Att chment "B"
of hotve11 X.
RADIATION EXPOSURE HISTORY WITH RESPECT 0 STEN GENERATORS Date Exam Dosage (Man-Rem)
Repair Dosage (Man-Rem)
Corrments Exposure not available in Man-Rem exposures.
XI.
DEGRADATION HISTORY FOR EACH TYPE OF DEGRADATION EXPERIENCED FOR TEN REPRESENTATIVE, UNPLUGGED TUBES FOR HHICH THE RESULTS OF TWO OR NORE ISI'S ARE AVAILABlE If the results for ten tubes are not available, specify this infor-mation for all those tubes for which results are available.
(repeat the, following information for each tube and degradation type)
Steam Generator No:
'Tube Identification:
.Type.,of Degradation:
N/n (specify denting, wastage,. cavitation erosion, caustic stress corrosion cracking, or flow induced vibration cracking)
(repeat the following information chronologically for each IS'I for which, re ults are available)
ISI Date:
Amount of Degradation:
(specify amount and units)
EFP Months of Operation Since Last ISI for Mhich Results are Given:-
d ~
~d ITEN VII ATTACHE'ANT "A" Four sludge samples removed from the four Unit 01 Steam generators during sludge lancing were received fro~chemical analysis.
The sludge was co-lected at the one micron filter used to remove sludge prior to recirculation or discharge of the lancing water.
Tne amount of sludge removed and the weight of sample received are shown below:
d No.
1 go.
2 No.
3 No.
4 153 228 76 190 32352 32353 32354 32355 26.26 26.52
- 31. 46
- 18. 46 Samples had been dried at.100'
.prior to weighing.
The fou-samples contained metal filings,. metal shavings, weld beads, metallic copper, brush hairs and small amounts of other fiberous mat rial.
These inclusions were separated from the oxides and smaller metal particles by grinding the samples and passing them through a
100 mesh screen.
The weights of metal and other inclusions separated were 2.58, 1.84, 10.24 and 3.21 grams for numbers one through four steam generators respectively.
The portions of the samples pass screen were analyized with the following 32352 Cons"ituent ing through the 100 results:
(~)
(3) 32353 32354 mesh
('/)
32355 Silica, Si02 Iron Oxide, FE2O3 Aluminum Oxide, A1203 C4 1cium Oxide, CaO Magnesium Oxide, Ngo Copper Oxide, CuO C.'chromium Oxide, Cr203
.Ianganese
- Oxide,
>F304 Nickel Oxide, Ni0 Sodium Oxide, Na20 Potassium
- Oxide, F20 Lead Oxide.,
Pb02 Zinc Oxide, Zn02 Tin Oxide, Sn02 2.4
- 89. 6 1.3 0.5 0.5 6.9 0.1 0.6 0.4
<O.l
<0.1 0.2 (0.1
<0.1 3.2 91.7 1.7 0.7 0.9 4.7 0.2 0.8 0.2
< O.l (o.l 0.2
<O.l (0. 1 0.7 90.2 0.5 0.2 0.2
- 10. 8 0.2 0.6 0.4 (0. 1 0.1 O.l (0.1 (O.l 1.4 97.5 0.7 0.3 0
~ 4 3.2 0.2 0.7 0.2 (o. 1 (0. 1 0.2 (0. 1 (0.1
~ ~
4
~
~
l4
~
s'onstituent 32353 32353 32354 32355 Molybdenum Oxide, l1o03 Phosphorous Panto-ide, P205 Sulfur Trioxide, SO3 Net 1gnition Gain (0. 1 0.2 (0. 1 102. 7
-4.0
- 98. 7 (0. 1 0.2 (0.1 104. 5
-5. 1 99.4 (0.1 0.1 (0.1 104. 1
-4.3 99.8 (0. 1 0.2 0.1 105. 0 100.6
r>
ZX.
Condenser Leaks ATTACHIKNT "B" A NE/ A NN 8/22/75 12/11/75 10/14/75 12/6/75 1/8/78 12/12/77 9/14/76 A SE/ A SN 9/14/76 1/3/77 10/28/76 3/9/76 B NE/ B Nif 8/22/75 9/15/76 5/11/77 B SH/
B SN 8/22/75 5/31/77 9/15/76 12/15/77 C NE/
C NN 1/3/77 3/12/76 8/22/75 12/5/76 C SE/
C SN 9/14/76 1/3/77 12/9/77 12/11/76 8/22/75