ML20127P629
| ML20127P629 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 06/30/1984 |
| From: | CYGNA ENERGY SERVICES, TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML20127P579 | List: |
| References | |
| TR-84056-01-APP, TR-84056-1-APP, NUDOCS 8505240040 | |
| Download: ML20127P629 (33) | |
Text
-
APPENDIX N
ECHANICE SYSTDIS TECHNICAL CHECKLISTS Checklist No.
Review Type MS-01 Design MS-02 Safety Classification MS-03 Hazards Protection MS-04 Operability Requirements MS-05 Testing Requirements MS-06 Miscellaneous lgg52 ADO $k0500!45 A
PDR M
Final Report TR-84056-01, Rev. 0 Texas Utilities Generating Company Independent Assessment Program, Phase 4
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i Independent Design ALn Review Checklist i
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IIFCH&ARIPAI SYSTEast rurert IST l
df-I C**
- P b iney/J. P. Foley
^##'***' R. Hess ff.ti, h CheckHet No.gg.gl Date 6/84
)
)
Setlefactory item Yes No N/A Commente 1.
Have the following heat loads been identified and classi-They are correctly classified for fled as normal or emergency?
the conditions noted.
l a.
RHR Heat Exchanger X
Normal in shutdown cooling mode, emergency in LOCA mode
}
b.
Containment Spray Heat Exchanger X
Emergency
{
c.
Chilled Water System Condenser X
Normal and emergency d.
Control Room A/C Condenser X
Normal and emergency e.
Reactor Coolant Pump Coolers X
Normal 2.
Were heat loads for CCW Heat Exchanger properly specified X
in accordance with BOP FR-1 and/or 2323-TD-0229?
3 Are calculations and specifications for CCW heat removal X
BOP-FR-1 speci fies a maximum ten-capability (flow rates, temperatures) based on maximum com-perature of 120T for all plant ponent temperatures and heat loads of system?
conditions. CCW HX specification i
MS-49 allows a 13ST outlet tem-l perature. Calculation No. 229-14 a-shows that CCW outlet temperature j
i exceeds 120T by 9.7*.
Also t
g '. : \\.
Figure 5 of Calculation 233-16 i
M--
shows a maximum heat remoyal rate of 380 x 10" vs. 330 x 10' BTU /hr used in calculations and shown in l
Table 3 Sheet 4 See (hservaties 115-01-01.
Texas utilities Generating Company; 84056 Sheet 1 of 10 Independent Assessment Program Phase 4 I
a
1 i
Independent Design
~
M Review Checklist
/
wruaurean tutTkast rurerstcT DESIGN l
" " * ' P. Rai nev/J. P. Fol ev Approve' R. Hess N.V. h Checklist No, MS-01 Date 6/84 (f
Satisfactory f
'lten Yes No N/A Comunente l,
4 Is fouling factor per TEMA guidelines?
X Although expressed in different units, the 80% cleanliness factor 1
j speci fied for the CCW' Heat Ex-j changer is more conservative than the TEMA Guidelines.
l S.
Is specified CCW pump flow sufficient to meet flow rates X
Pump Specification MS-11 specifies specified'in BOP FR-1 and TD-02297 Q = 14,700 duri ng cooldown Q = 16,400 (runout)
Vendor curve indicates 18,000 gpm l
at runout.
l i
j 6
Flow calculation through RHR Heat Exchanger i
a.
Geometry X
l b.
Static Head X
Closed system.
l j
c.
Friction Factor Y
Used.012 which is correct.
d.
Valve flow coefficients X
, o g gh l fX
{
e.
Orifice flow coefficients J
L:,m; f g.
s' X
No justification for K=10 ft. for
{
f.
Total equivalent length
- g f$
ihmt k
45* elbow. Total equivalent il k l
length is conservative.
1 g.
Pump curve operating point X
l h.
Pipe size X
ID = 23.95" I
l
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Texas Utilities Generating Company; 84056 Sheet 2 of 10 Independent Assessment Program, Phase 4 i
i
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1 Ind;pandant Dosign ALn Review Chacklist i
IN1WuluuulluulWNN BECHAllICAL SYSTEftS CHECKLIST ut3Itigt C wimt P. Rainey/J. P. Fol ey App'**** R. Hess X,@,A Checklist No. MS-01 Date 6/84 Satisfactory item Yes No N/A Comunents l
1.
Total Pressure Drop X
The total head loss to the RHR HX is l
much less than the TDH of the pump.
l The flow should be restricted during system balancing in the field.
l l
- j. Calculated flow meets BOP FR-1 requirements X
7.
Flow calculation to most distant component in terms of Used thermal barrier of R.C. Pump pressure drop.
- 1 since it was in Cygna scope.
R.C. Pump #3 is most distant.
a.
Geonetry X
b.
Static Head X
Closed system.
c.
Friction Factor X
d.
Valve flow coefficients X
Figure type for stop check valve on valve list is incorrect.
Should be Figure 3664 instead of
]
Figure 3624. K of 1.9 is used in the calculation which is equiv-m I
alent to a C = 61.9.
This ex-
- j i
ceeds manufacturer stated value of i
t C = 54 for the valve supplied.
Reference sheet 348 of computer L.--
input. Other conservatisms in equivalent length make up for the error and results are acceptable.
e.
Orifice flow coefficients X
Texas Utilities Generating Company; 84056 Sheet 3 of 10 Independent Assessment Program, Phase 4
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Independent Design Review Checklist ahL t i ECHANICAL SYSTEMS CHECKLIST ut.M un C wiewer P. Rainey/J. P. Foley App <ever R. Hess ft.1>.Q Checklist Me. MS-01 Date 6/84 Satisfactory item Yes No N/A Comments f.
Total equivalent length X
On Sheet 167 for nodes 225 and 235, G&H listed a 45* elbow in-stead of a S.R. 90* elbow. Also, calculated branch tee resistance i
coef ficient (K=.26) incorrectly.
It should be K =.78. Other take-offs are correct or conservative and make up for above discrepan-cies.
g.
Pump curve operating point X
h.
Pipe size X
1.
Total Pressure 0.op X
j. Calculated flow meets T0-0229 requirements X
The design flow required to reac-tor coolant pump thermal barriers per BOP-FR-1 is given as 40 gpe.
Pump manual lists minimum flow as 35 gpm. Gibbs and Hill calcula-R tion performed using " Pipe Flow" I-computer code shows that these requirements are not met for several cases. The worst of these cases is identified as "one train J
balanced cooldown - 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />". The flows to the thermal barriers for y
L this case are:
!i 1
Texas Utilities Generating Company; 84056 Sheet 4 of 10 I
j Independent Assessment Program, Phase 4
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1 I
i Independent Design AL Review Checklist 6 i
=
E CHANICAL SYSTEMS CHECKLIST ut.sIEu R: viewer P. Rainey/J. P. Foley Approver R. Hess ff,1.>. y Checklist No. MS-01 Date 6/84 i
Satisfactory Item Yes No N/A Comments Thermal Barrier Calcuiated No F1ow 1
32.12 gpm 2
32.22 gpm 3 (most 29.41 gpm distant) 4 31.05 gpm Other cases for which the FR-1 I
requirement is not met are:
i
- 1) Two train cooldown, 4 hrs
- 2) Normal operation Train A 3)
Normal operation. Train B l
4)
"S-Signal" flow rates i
j Revision of calculation No. 229-15 indicates 36 gpm minimum to all pumps after system balancing,
[
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fil l.
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l Texas Utilities Generating Company; 84056 Sheet 5 of 10 Independent Assessment Program, Phase 4 d
m
independent Design AL Review Checklist yi MECHANICAL SYSTEMS CECKLIST DESIGN ccviewer P. Rainey/J. P. Foley Approver R. Hess ff,N h checklist No. MS-01 o***
6/84 Satisfactory l
Item Yes No N/A Comments 8.
F1ow calcuiation to Reactor Coolant Pump Coolers l
a.
Geometry X
j b.
Static Head X
Closed system.
i c.
Friction Factor X
d.
Valve flow coefficients X
e.
Orifice flow coefficients X
f.
Total equivalent length X
g.
Pump curve operating point X
i i
h.
Pipe size X
i 1.
Total Pressure Drop X
[
- j. Calculated flow meets B0P FR-1 requirements X
l 9.
Flow calculation through containment spray heat exchanger.
a.
Geometry X
b.
Static Head X
Cl osed system.
c.
Friction Factor X
Used.012 which is correct.
d.
Valve flow coefficients X
e.
Orifice flow coefficients X
f.
Total equivalent length X
Conservati ve.
X g.
Pump curve operating poi n y r ? 3 ;.
p.4 ma FN a X
h.
Pipe size 1.
Total Pressure Drop Q{,jj{jjg$** h X
Pressure drop to heat exchangers is much less than the TDH of the pump.
The flow should be restricted.
- j. Calculated flow meets TD-0029 requirements X
Texas Utilities Generating Company; 84056 Sheet 6 of 10 Independent Assessment Program, Phase 4 t
Independent Design ALn Review Checklist i
MECHANICAL SYSTEMS CHECKLIST 1E5HiN Ccvime P. Rainey/J. P. Foiey Appeover R. Hess A,4j,Q Checklist No. MS-01 Date 6/84 Satisfactory item Yes No N/A Commente
- 10. Flow calculation to chilled water system condenser Calculations for length, friction factors, etc., consistently con-servative.
a.
Geometry X
b.
Static Head X
Closed system.
c.
Friction Factor X
d.
Valve flow coefficients X
e.
Orifice flow coefficients X
f.
Total equivalent length X
9 Pump curve operating point X
h.
Pipe size.
X 1.
Total Pressure Drop X
- j. Calculated flow meet TD-0229 requirements X
- 11. Flow calculation to control room A/C condenser Calculations for length, friction factors, etc. Consistently con-servative.
a.
Geometry X
?QI X
Closed system.
P.
b.
Static Head
.g g g 8 51 k N
l X
c.
Friction Factor yhh d.
Valve flow coefficients
{
X e.
Orifice flow coefficien '. s i X f.
Total equivalent length _
X g.
Pump curve operating point (pressure)
X h.
Pipe siie X
1.
Total Pressure Drop X
- j. Calculated fl ow meet TD-0229 requirements X
Texas Utilities Generating Company; 84056 Sheet 7 of 10 Independent Assessment Program, Phase 4 i
independent Design Lii Review Checklist INNNNNNNINNNNNNN ECHANICAL SYSTEMS CHECKLIST ut.unn
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R: viewer P. Rainey/J. P. Foi ey Approver R, Hess A,b, M Checklist No. MS-01 Date 6/84 Satisfactory item Yes No N/A Commente l
- 12. Pump NPSH calculation (229-9, Rev. 0, dated 5/25/78) a.
Geometry X
No suction loops.
b.
Static Head X
Conservative, by 3-1/2 ft. because G&H used the tank bottom instead i
of the centerline.
c.
Friction Factor X
Friction factor is conservative.
d.
Valve flow coefficients X
Not included in calculation, but has insignificant effect (< l').
e.
Total equivalent length X
6" portion is conservative, 24" and 20" portions are not included j
but would on1y reduce NPSHg by
< 4'.
l f.
Pipe size X
l g.
Plant elevation correction factor X
Not included in calculation but has < l' effect on NPSH
- A i
h.
Saturated vapor pressure correction factor X
Vapor pressure in calculation i
based on 105'F (h = 2.56'),
g g g n a< g,7,gjd absolute maximum temperature is
[,,Ld
- NMilI,
- ' ("* ' ****' *** '*" I'I' Texas Utilities Generating Company; 84056 Sheet 8 of 10 l
Independent Assessment Program, Phase 4 a
Independent Design Review Checklist AL t i I
ECHANICAL SYSTEMS CHECKLIST I
DESIGN l
{
20** P. Rainey/J. P. Fol ey
^90'**** R. Hess A,'L/. Q Checklist No. MS-01 Date 6/84 Setlefactory i
j ltem Yes No N/A Comments l
1.
Is NPSHA > NPSHg X
Maximum NPSHR at pump runout is 36',
G&H calculation shows NPSHg i s 104 ' which i s >> 36'.
Indepen-dent calculation based on leakage l
from moderate energy line break of 600 gpm and maximum water temper-l ature of 176*F resulted in a NPSHg i
of 84' which is still >> NPSHg of 36'.
This shows large margin be-tween NPSHA and NPSH
- R
- 13. Does CCW pump operate in acceptable region on its curve?
X Verified by review of pump test data and certified curves.
14.
Is specified minimum flow recirculation valve C adequate X
CCW pump specification MS-11 lists y
to meet specified pump minimum flow requirements?
minimum flow as 4000 GPM. Spec i
MS-600 and vendor information sheet on valve (FV-4536) lists Cy 1
of 4630 which ensures that valwe di L
Texas Utilities Generating Company; 84056 Sheet 9 of 10 Independent Assessment Program, Phase 4 t
Independent Design Review Checklist L4 L t i ECHANICAL SYSTEMS CHECKLIST unlun I
Ccviewer P. Rainey/J. P. Foley Approver R. Hess g,yh Checkilet No. MS-01 osse 6/84 Setlefactory item Yes No N/A Commente i
- 15. Does surge tank provide make-up for 30 minutes leakage from X
Leakage during 30 minute period at system assuming 50 GPM leak?
50 gpm is 1500 gallons. Tank is t
provided with automatic makeup l
capacity of 50 gpm backed up by manual makeup capacity. In addi-tion t.:ere is sufficient volume j
below low level setpoint to l
tolerate 50 gpm leakage for 30 minutes. Also there is automatic 1 solation which negates need for l
30 minutes of leakage protection.
i i
PRRMM ;
L Texas Utilities Generating Company; 84056 Sheet 10 of 10 Independent Assessment Program, Phase 4
independent Design l
ALn Review Checklist i
l p p[
narcuarem cvsnasc riarerpsr Seismic / Safety / Redundancy Classification Review p,$[,,,j3,f,9r N.D, Checklist No.
Reviewer R Hatc gg,gy Fnl ow Date 6/84 Satisfactory I
Item Yes No N/A Comments i
i.
)
1.
Do the following components meet Regulatory Guide 1.26 Review of G&H position on Regula-i Safety Classification Criteria:
tory Guide 1.26 shows that they are in compliance.
j Review of applicable specifica-l tions shows. equipment is specified 1
per correct safety class.
j a.
CCW Pump X
l b.
CCW Heat Exchanger X
i c.
CCW Surge Tank X
d.
RHR Heat Exchanger X
e.
Containment Spray Heat Exchanger X
[
f.
Chilled Water System Condenser X
g.
Control Room A/C Condenser X
i h.
Reactor Coolant Pump Coolers X
1.
CCW Penetration Piping and Valves to R.C. Pump Coolers X
C 2.
Do the following components meet Regulatory Guide 1.29 G&H took 3 exceptions /clarifica-Seismic Classification Criteria:
tions to 1.29.
Not applicable to j
- i this equipment.
4 Equipment is specified per correct seismic class.
X a.
CCW Pump i
j b.
CCW Heat Exchanger y*u yKRi
%g r
X j-c.
CCW Surge Tank
'7,;-),
X
- p t fi X
f d.
RHR Heat Exchanger cdhIvde'r # *ygg 1
X J
e.
Containment Spray Heat f
Texas Utilities Generating CompanW84056 heet 1 of 7
}
Independent Assessment Program, Phase 4 i
Independent Design dLn Review Checklist i
mammmmma BFrun tral SYSTFaeS CHFrXIIST Seismic / Safety / Redundancy C1assification Review DC'8**
P. Rainey/J. P. Foiey APP
R. Hess N,D. M Checklist No.
MS-02 Date 6/84 Satisfactory item Yes No N/A Comments f.
Chilled Water System Condenser X
g.
Control Room A/C Condenser X
h.
Reactor Coolant Pump Coolers X
- i. CCW Penetration Piping and Valves to R.C. Pump Coolers X
3.
Are the following components non-seismic?
a.
Ventilation Chillers & supply / return CCW piping X
Ventilation Chillers (CPX-CH CICE-01 through 04 are non-seismic per MS-80A and FSAR Section 9.4E, and Table 17A-1.
b.
Letdown Chiller Package Condenser & CCW piping X
c.
Instrument Air Compressor & piping X
d.
Instrument Air Aftercooler & piping X
(Items 4 - 6 are not required if the components in Item 3 are all seismic) 4.
Are there redundant isolation valves to isolate n_on-seismic X
Motor operated non-safeguards loop piping to components in Item 3?
supply valves 4526 and 4527 are in 1
g ]
series and are redundant as are N
\\
Eid X
The valves isolate automatically on 5.
Isol ation of 'non-ieis i ons t
u low surge tank level as well as on a "P"
sianal. See Item 6 hel ow.
Texas Utilities Generating Company; 84056 Sheet 2 of 7 Independent Assessment Program, Phase 4
\\
I Independent Design Review Checklist dLn i
ECHANICAL SYSTEMS CHECKLIST Seismic /ufetyfuesunsancy Liass171 cation Neview f
Rsviewer P. Rainey/J. P. Foley Approver R. Hess g, D, b Checklist No. MS-02 i
Date 6/84 Satisfactory Item Yes No N/A Commente 6
If a non-seismic line fails, flow rate out of the break X
Flow rate from equivalent 10" must be less than makeup rate capacity of surge tank break from ventilation chiller i
pipi ng.
exceeds makeup capacity and may j
cause common mode failure of CCW system.
4 See (bservation MS-02-01.
7.
Flow rate out of worst case moderate energy line break nust X
Worse case moderate energy leakage be less than makeup rate capacity of surge tank piping.
is 583 gpm. This is less than make-up capact ty of surge tank and i
surge tank piping. (Refer to CCW NPSH calculation review and moderate energy break calculation review.)
8.
Contents of surge tank must be capable of being directed to X
Each side of surge tank is nor-
.i correct CCW header in spite of single active failure mally lined up to its associated
~
(including operator error or spurious valve action).
trai n.
There are no remote oper-ated valves between the tank and the pump. Therefore, a single gg failure cannot prevent the con-
$.,lbhf f'}
j tv tents from getting to its associ-3 ated trai n.
1 Texas Utilities Generating Company; 84056 Sheet 3 of 7 Independent Assessment Program, Phase 4
Independent Design AL Review Checklist t i MECHANICAL SYSTEMS CHECKLIST Sei smi c/sa fety/ Redundancy Cl a sst ri ca ti on Revi eu Kowleww P. Rai ney/J. P. Fol ey Approver R. Hess /, b, M Checklist No. MS-02 Date 6/84 Satisfactory i
item Yes No N/A Comments i
9.
CCW header or piping rupture must not cause loss of X
The failure of piping to nonsels-contents of both sides of surge tank.
mic chillers may cause loss of both sides of the surge tank (see item 6). A moderate energy line break in a safety class or seismic component will not.
See (bservation MS-02-01.
i
~
- 10. One train of CCW system mist be capable of operating following failures of:
~
a.
Any CCW valve X
b.
One CCW pump X
c.
One CCW heat exchanger X
d.
One seismic pipe X
e.
One relief valve X
f.
One vacuum breaker X
g.
One side of surge tank X
h.
Non-safety class piping X
See Item 6 and 9.
1.
Non-seismic equipaent X
A seismic event coupled with equipment failure could lead to i
adverse consequences (see write-up on non-seismic chillers, item 6).
p K 'y'
- 5 ) N, h See (bservation NS-02-01.
i_Du.TN ~M h L i-
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Texas Utilities Generating Company; 84056 Sheet 4 of 7 j
Independent Assessment Program, Phase 4 t*
Independent Design Review Checklist AL t i
=
l MCHANICAL SYSTEMS CHECKLIST Seisuici5aiesyis___i rmy G assifi6 asian L.iew Cb-lewer P. Rainey/J. P. Foley Approver R. Hess f,'1), h Checklist No.
MS-02 pote 6/84 Satisfactory item Yes No N/A Comments
- 11. Appropriate design criteria must be in place to ensure that X
Class 5 piping is designed to i
failures of other non-seismic systems located in proximity accommodate this. Many non-safety l
to the CCW systems don't affect seismic CCW piping and/or items are seism 1cally supported j
equipment.
(won't fall and damage safety equipment). See FSAR Table 17A.
i i
12 Non-essential loads must be isolated from essential loads X
l by redundant valves following an accident.
- 13. Does water hasumer analysis show that essential CCW piping X
Water hanumer analysis was not done is not damaged when non-essential piping is isolated.
and is not required to be done for the system. Reviewed G&H valve
).
list and verified that fastest acting valve has a 3 second clos-ing time for a 2" valve and 17 i
second closing time for a 10" l
valve. This is a filled system and water hammer is not a probiem kk j
j with these closing times.
f%
t l
(' g b ii4 i
i Texas Utilities Generating Company; 84056 Sheet 5 of 7 4
Independent Assessment Program, Phase 4 r
Independent Design L*h L a Review Checklist i
summmmmma MECHANICAL SYSTEMS CECKLIST Sei smi c/da rety/ Meeunsa ncy Li assi r i cati on nevi ew Oculewer P. Rai ney/J. P. Foley Approver R. Hess g y h Checklist No, MS-02 pase 6/84 Satisfactory item Yes No N/A Comments l
14 Piping design pressure must be sufficient or a relief valve X
Following a thermal barrier leak (up L
must be provided to prevent overpressurization of CCW to 275 gpm per p.12 of B0P-FR-1) j piping following reactor coolant leakage and CCW isolation the 2503 class CCW outlet piping i
in piping to/from reactor coolant pump.
from the thermal barrier is isolated by a M0V actuated on high tempera-1 ture. The inlet piping is 2503 all the way to a stop check valve. The thermal relief valves are set at i'
2485 PSIG and do not protect the 150# class CCW piping outside the containment if the temperature actuated MOV or its power supply is the single failure as required by i
GDC-44 B0P-FR-1 requires that the outlet isolation valves close on a i
high flow signal. They do not.
In-l VI stead they are closed on a P signal I
1 (containment pressure) which will
' I. b.
not be generated by this reactor L
L
(
g j coolant leak.
The CCW system could eventually overpressurize and unacceptable failure could result (i.e., rupture pli of a 24" pipe which could quickly create voids in both trains).
q li See (bservation MS-02-02.
I!
ji U,
Texas Utilities Generating Company; 84056 Sheet 6 of 7 Independent Assessment Program, Phase 4 it l
\\
l Independent Design AL Review Checklist
& i ECHANICAL SYSTEMS CHECKLIST Seise ecviewer P. Rainey/J. P. Foley Approver R. Hess A,'L), h checkilet No.
MS-02 f
Date 6/84 Satisfactory l
Item Yes No N/A Comments
- 15. At containment penetration M-V-10, at least one automatic X
Two are provided, 4699 and 4701.
valwe 1ocated outside containment must be provided.
One is Train "A" and the other Train "B".
Both close on a "P" i
l signal.
l
- 16. CCW system must always operate at higher pressure than the X
Placement of the CCW heat i
service water system?
exchanger on the discharge side of the CCW pump assures this.
1 i
1 i
j i
l I
)
Texas Utilities Generating Company; 84056 Sheet 7 of 7 Independent Assessment Program, Phase 4 1
\\
4 Independen't Design i
A f. n Review Checklist i
I MECHANICAL SYSTEMS CHECKLIST J
Hazards Protection Reviam P.lainey/J. k'. Foley App'over R. Hess N,'D. h Checklist No. MS-03 j
2:5 3* =
j oste 6/84 Satisfactory j
ltem Yes No N/A Comments i
1.
System must be arranged to ensure that common mode failure Extensive attention was given to of pumps, surge tank, CCW Heat Exchanger, redundant valves, analysis and protection of safety i
and CCW pump cooling from following does not occur:
systems from external events in-i cluding missil es (Interior & Ex-j terior) (FSAR Sect. 3.5), pipe breaks (Sect. 3.68), flooding 1
j (Cal cul ations 542,543,544),
i harsh environments (FSAR Sect.
3.11), fires (Fire Hazard Analy-J sis, FSAR 9.5-1), fire suppression (accounted for in flooding calcu-lations), tornadoes and hurricanes (see missile analysis).
j a.
external missiles X
4h X
l b.
internal missiles p'A,, j c.
pipe breaks X
i
... - [ a -
.I X
d.
harsh environments e.
fl ooding
~
X X
f.
fires j,
g.
fire suppression equ rk X
h.
tornadoes X
j 1.
hurricanes X
j
- j. seismic two over one X
l 2.
Have environment 41 conditions resulting from pipe breaks X
Valve specifications do include l
been satisfactorily incorporated into equipment environmental conditions from FSAR.
j specification requirements for the system valves?
See Electrical Checklists.
Texas Utilities Generating Company; 84056 Sheet 1 of 1 Independent Assessment Program, Phase 4 i
\\
Independent Design AL Review Checklist t i j
MECHANICAL SYSTEMS CHECKLIST
,y.
Operan111ty nequirements Rowlewer P.' Rai ney/J. P.LFo1ey Approver R. Hess A,1), h Checkilst No.MS-04 Date 6/84 Satisfactory item Yes No N/A Comments i
1.
Pump and Piping Arrangement:
X Reference drawings BRP-CC-2-AB-030 and -046.
i a.
No suction piping loops b.
High point vents X
c.
Low points drains X
d.
Eccentric reducers X
Reducing elbows are used in lieu of eccentric reducers, which is j
acceptable.
)
e.
Gate valves only in suction piping X
Butterfly valve is acceptable.
f.
Pump vent (if required)
X Vent valve ICC-028 is on discharge pi pi ng. There are also several valves on pump.
g.
Temporary strainer X
Temporary strainer is provided.
j h.
Surge tank highest component
,/
X The centerline of the surge tank is at elevation 889'-6" and is the 1
highest component in the system.
j
,;\\
' hpl\\
1.
Chemical addition tank accessib1
.eY
'X The chemical addition tank is
- $ (
located in the same room as the j
p CCW pump and is accessible.
i
,d
- j. Heat exchanger vents X
For Spray HX reference drawing BRP-CC-1-SB-009.
/
For RHR HX reference drawing BRP-f CC-SB-001.
j k.
Heat exchanger drains X
}
Texas Utilities Generating Company; 84056 Sheet 1 of 7 Independent Assessment Program, Phase 4
Independent Design ALn Review Checklist i
IECHANICA. SYSTEMS CHECKLIST Operam111'ty nequirements i
CC'8***' P. Rai ney/J. P. Fol ey App R. Hess //. t.h Checklist No MS-04 Date 6/84 i
Satisfactory i
item Yes No N/A Commente 2.
Flow instruments located in straight length of pipe with j
ten diameters upstream and six diameters downstream.
a.
FE-4536A (in 24" pipe)
X 14' upstream, S' downstream per BRP-CC-1-AB-013.
b.
FE-45368 (in 10" pipe)
X 12'-6" upstream, 50' downstream per BRP-CC-1-AB-007.
c.
FE-4556 (in 18" pipe)
X 24' upstream, 8' downstream per l
BRP-CC-1-SB-004, d.
FE-4560 (in 18" pipe)
X 24' upstream, 8' downstream per BRP-CC-1-SB-004, 4
i The only effect of the above j
reduced lengths of straight pipe 1
is a reduction in accuracy of the flow measurement. Maximum induced i
h error is approximately 3/4% for FE-4536A. This is accceptable for system control functions.
l
\\
Texas Utilities Generating Company; 84056 Sheet 2 of 7 Independent Assessment Program, Phase 4
[
l u
l Independent Design i
dL Review Checklist i i i
DECHANICAL SYSTEMS CHECKLIST u.,
COwlewer P. Rainey/J. P. Foiey Approver R. Hess g,b, 7M Checkilet No. MS-04 cete 6/84
]
Satisfactory I
Item Yes No N/A Comments 3
Valwe 1ocated as c1ose as possibie to containment I.
penetration a.
HV-4700 X
Per BRP-CC-1-SB-008 (HV-4700) is located approximately 12' from the penetration.
b.
HV-4699 X
Valwe 4699 is approximately 16' from the penetration.
i c.
Per BRP-CC-1-RB-049, val ve is only 2' 10-3/4" from containment.
/\\
4 Relief Valve 10C-020 a.
Size DS X
Design pressure of surge tank per
)
b.
Setpoint 4.[. t.' Ec*
c X
specification MS-65, page 3-11 is X
10 psig. Sheet 1 of App. 6 re-j c.
Flow g%)C ;.y j
d.
Accumul ation X
quires a relieving pressure of 10 7
l e.
Pressure Rati X
psig; however, spring set pressure is listed as 150 psig. Val ve ffv' drawing DS-C6046B, Rev. D does not contain set pressure informa-tion. DCA 3187 corrected spring
)
set pressure to 10 psig.
t 4
i Texas Utilities Generating Company; 84056 Sheet 3 of 7 Independent Assessment Program, Phase 4 t
' - - - - - - - - - - - - - ~ - - - - -
~'
- - - ~
Independent Design AL t
Review Checklist i
mammmmmma ECHANICAL SYSTEMS CHECKLIST Operanisity nequirements C wl**** P. Rainey/J. P. Fol ey Apot*wer R. Hess ID, b Checklist No. MS-04 pate 6/84 Setlefactory i
item Yes No N/A Commente 5
Relief Valve ICC-723 a.
Size X
Valwe protects the 2503 piping as required.
b.
Setpoint X
Appendix 5. Sheet 1 of 1, of MS-26 shows valve 723 with 150 lb. out-let flange. Valves 724, 725 and 726 (other loop valves) have 300 lb. outlet fl anges. MS-26. Rev. I corrected this inconsistency.
c.
F1ow X
d.
Accumulation X
i e.
Pressure Rating X
f.
Model No.
X 4.
yw f.
6 Vacuum Breaker CP1-CCVBST-01 l
a.
Size
\\
Y X
b.
Setpoint
- 3. J.
X c.
Flow X
d.
Pressure Rating X
i
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Texas Utilities Generating Company; 84056 Sheet 4 of 7 Independent Assessment Program, Phase 4 i.
i
Indspsndent Design dLn Review Checklist i
ECHANICAL SYSTEMS CHECKLIST c.
- l;t, %.;._..a Rxlewer P. Rainey/J. P. Foley Approver R. Hess f, V, h Checklist No. MS-04 Date 6/84 Satisfactory item Yes No N/A Comments 7
Restricting Orifice CP1-CCORHX-01 X
Orifice not sized in calculation by G8H, only AP specified. Sizing a.
Size by others. Rating and material s b.
Rating covered by piping specification.
c.
Material I
8 Maximum flow through following heat exchangers with both Calculation Manufacturer's CCW pumps operating must be less than manufacturer's Val ues Datal maximum value:
X 7563.95 gpm 7592 gpm a.
RHR Heat Exchanger X
6056.47 gpm 6033 gpm b.
Containment Spray Heat Exchanger X
334.73 gpm 300 gpm c.
Chilled Water System Condenser X
278 gpm 250 gpm i
d.
Control Room A/C Condenser X
Note 2 40 gpm e.
Reactor Coolant Pump e
1.
Design values, maximum up to 150% of these are acceptable.
2.
See comment, Mechanical Checklist 01, Item 7.
g#
l Texas Utilities Generating Company; 84056 Sheet 5 of 7 Independent Assessment Program, Phase 4 I
k
l j
Independent Design AL Review Checklist t i mmmmmmmmma ECHANICAL SYSTEftS CHECKLIST 4
i CFi aniiity,_irements l
l Ccwiewer P. Rainey/J. P. Foley Approver R. Hess gb, h Checklist No. MS-04 oste 6/84 l
Setlefactory l
Item Yes No N/A Comments i
l 9.
Maximum flow through following heat exchangers with both Calculation not performed for both i
CCW pumps operating and the non-essential loads isolated pumps operating and non-essential must be 1ess than design value:
1oads isolated. Accident condi-tion is worst case and was con-sidered. Values calculated for i
that condition are acceptable.
I a.
RHR Heat Exchanger X
i b.
Containment Spray Heat Exchanger X
)
c.
Chilled Water System Condenser X
d.
Control Room A/C Condenser X
i l
10.
Increased flow from two pump operation must not cause X
Depending on the set point, high l
inadvertent equipment isolation from high flow signal.
flow through FE 4650 to NNS vent chillers could isolate chillers l
onl y.
This is not a safety con-j cern since this equipment is not needed in response to an acci-1 dent. The only other non-accident automatic action resulting from j
N-J
,,4 gt
(
flow is opening or c1osing CCW
'YA recirculation valves. All other t'1 i(*,M i t ^ '
I flow elements provide alarm and l
(~er* ~
indication only. (Reviewed 4356A 3
j and B, 4556, 4560, 4650, 4678, 4676,4695).
4 l
Texas Utilities Generating Company; 84056 Sheet 6 of 7 Independent Assessment Program, Phase 4
^
.\\.
Independent Design i
ALn Review Checklist i
i Nuuuuuuuuluulului EC"^"*1 SYSTE"? MC"i!ST Operability itequirements Apow I D.
Checklist No.
l cova.. r,
,g_,,,g
, y,3,,
D.
h_ e_ e_
l Satisfactory
\\
Item Yes No N/A Commente i
j
- 11. Low flow from a pump trip must not cause inadvertent X
j equipment isolation from 1ow flow signal.
I I
- 12. Low surge tank level must isolate non-safeguards loop and X
DCA-17214 incorporated this inter-cause safeguards trains to isolate also.
lock into the system design.
j
- 13. Design pressure of CCW system must be less than shutoff X
The shutoff head of the pump is head of CCW pump at system maximum operating temperature.
280' and the static head is F
roughly 80' for a total head of l
360' or 155.9 psi. Piping is good for 200 psi at 500*F which greatly exceeds requirements.
i
- 14. Administrative controls must be in place to ensure throttle X
Throttle valves are locked in valve position is maintained after sts.
position af ter system testing.
Power operated valves which must be operated and which are used for throttling are subj ect to proced-g*%
.(
l ural control s.
l As
/
/
f' i
Texas Utilities Generating Company; 84056 Sheet 7 of 7 l
Independent Assessment Program, Phase 4 l
Independent Design AL Review Checklist t i mammmmmmma 1
DECHANICAL SYSTEMS CHECKLIST mu g nequi. _..u g.
P. Rainey/J. P'. Foley Approver R. Hess g y, h Checklist No. MS-05
~
Keviewer pote 6/84 1
]
Satisfactory item Yes No N/A Comments i
1.
Drains provided for leak testing valves ICC-713,1-HV-4700 X
ICC-713 - Val ves 712 and 714 are and 1-HV-4699.
provided (Reference BRP-CC-1-RB-049). 1-HV-4700 and 1-HV-4699 -
Valves 717 and 985 are provided.
I (BRP-CC-1-008.)
i l
2.
All system check valves testable to verify free operation.
X Check valve ICC-031 operability can be verified by FE-4536A. Check valve ICC-713 operability can be verified by FE-4685. Check valves ICC-003 and 004 can be verified by 1
surge tank level or makeup system operation. Thermal barrier stop check operability can be verified by outiet flow instrument.
l 3.
All active components functionally testab uri g normal X
System is normally operating. Some plant operation.
1 solation valves cannot be tested 1
while system is operating but can be 1
tested during refuelings, which is satisfactory.
g g g.,,
, /
Texas utilities Generating Company; 84056 Sheet 1 of 2 Independent Assessment Program, Phase 4 T-
independent Design AL Review Checklist t i NEINNINNININNINilNi ECHANICAL SYSTEMS CHECKLIST Iesting Hequirements CC'3***r P. Rainey/J. P. Fol ey App'av*r R. Hess /. U b CheckHet No. MS-05 Date 6/84 Setlefactory j
ltem Yes No N/A Commente j
4.
The following CCW components located in areas which are accessible with minimum radiation exposure for periodic inspections and testing:
i a.
CCW Pump X
b.
CCW Heat Exchanger X
c.
CCW Surge Tank X
i d.
RHR Heat Exchanger X
e.
Containment Spray Heat Exchanger X
f.
Chilled Water System Condenser X
g.
Control Room A/C Condenser X
)
h.
Reactor Coolant Pump Coolers X
The RC pump coolers are accessible
]
when the pumps are accessible.
1.
CCW Penetration Piping and Valves to R.C. Pump X
The valves are accessibie as Cool ers requi red.
4
)
Texas utilities Generating Company; 84056 Sheet 2 of 2 Independent Assessment Program, Phase 4 C
1 Independent Design A(
Review Checklist t i 4
DECHANICAL SYSTEMS CHECKLIST j
Riscellaneous lieview i
Chr CD Pl Rainey/J. O. Foley Am** R. Hess I.D. 7M Checkilet No. M$.06 CC 'l* **'
j Date 6/84 f
Satisfactory Item Yes No N/A Comments 1.
The fallowing "as-built" components must comp)y with the purchase specifications?
a.
CCW Pump
\\
X
\\\\
l b.
CCW Wat Exchanger T
c.
CCW Surge Tank gX i
d.
CCW Piping s-
., ($.,,
/
j e.
CCW Valves
,h;h. t :
t X
j f.
Chilled Water System Condenser
(
% M' X
g.
Control Room A/C Condenser
[/ /
X Orifice sizes not specified by h.
Orifices w
Gibbs & Hill, only head Ioss is speci fled.
j
- i. Containment Spray Heat Exchanger X
f I
2.
Surge Tank vacuum breaker / vent valve combination must be X
l single failure proof.
j 3
Surge Tank relief valve / vent combination must be single X
i failure proof.
4 Surge Tank specification must ensure partition designed to X
Note 8 of APC0 drawing N-2600-359, withstand differential pressure with one side full, other Rev. CP-1 clearly states this re-side empty.
quirement.
I l
Texas Utilities Generating Company; 84056 Sheet 1 of 4 Independent Assessment Program, Phase 4
.\\
i Independent Design ALn Review Checklist i
i NFrum a [can SYSTFBIE riscri IST Misce 1 aneous Review i
l C"3**
P. Rainet/J. P. Fol ev APP
- R. Hess N. U,71 W
Checklist No. MS-06
}
Date 6/84 i
8atisfactory Item Yes No N/A Comments i
5.
Administrative Control s/ Technical Specifications must X
Locked closed valves provided.
ensure that units cannot be cross-connected.
I
)
6.
Ensure that there is no way units or subsystems can be X
Automatic isolation of subsystem cross-connected resulting in loss of surge tank or other on surge tank empty signal.
j component. Ensure that Interlocks or administrative con-trols are acceptable.
l 7.
Moderate Energy Line Break Calculation a.
Is CCW < 200*F and < 275 PSIG X
System temperature is < 180* max and pressure < 200 psig.
i k
l b.
Does crack (leak) area meet NRC requir y
Area = 1/2 pipe diameter times 1/2 nt e
g \\gQ, f
wall thickness.
i 4, -
. th;'.
c.
Is flow rate equation conserv tiv X
Formula is Eq. 3-21 from Crane p//
Technical Paper #410.
d.
Are coefficients conservative X
e.
Was largest pipe used X
24",.375" wall is largest.
3 f.
Is flow from break within capacity of surge 1ine X
F1ow of 1.3 ft /sec or approxi-j mately 600 gpm does not cause
~
excessive losses in surge line.
Texas Utilities Generating Company; 84056 Sheet 2 of 4 Independent Assessment Program, Phase 4
~
1 Independent Design Review Checklist ALa i
MECHANICdt.SYSTEMSCHECKLIST m sces saneous neview co;iewer P. Rainey/J. P. Foley ApproverR. Hess [b, fh Che38te No.MS-06 2
case 6/84 Satisfactory t
3 Item Yes No N/A Comments g.
Is pressure used conservative X
AP of 132 psig was used. Equi-valent to 305' of head which is l
equal to TDH of pump and static i
head while system is operating.
I i
8 Does CCW System meet following B0P-FR-1 requirements:
i a.
Page 7, Section B requires that there be sufficient X
This requirement is beyond the pumping capacity to provide continuous system single failure criteria and cannot operation if one pump fails while a second is out for be met unless there are 3 - 100%
j mai ntena nce.
trains or the units are cross -
connected. System is sufficiently i
redundant and CPSES is not re-quired to meet this criteria, b.
Page 13 recommends that CCW valves associated with RHR X
Valves are partially opened on re-cooling be opened simultaneously with containment sump ceipt of an S signal and are fully isolatton valves.
Opened on receipt of a P signel.
c.
Does staney pump meet 60 second starting requirement X
of Page 14.
]
d.
Does CCW outlet temperature remain below 120* d X
Per FSAR temperature reaches
, g]i cooldown.
121.8*.
Calculations also show temperature exceeds 120* during
("I g g
cooldown.
i See (bservation 16-01-01.
j 4
$. p Q ' /
?
h/s Texas Utilities Generating Company;\\84DN Sheet 3 of 4 Independent Assessment Program, Phase 4 j
.\\
Independent Design ALa Revie'w Checklist i
MECHANICAL SYSTDIS CHreriIST msces saneous neview ncview
P. Rainey/J. P. Foley Approver R. Hess Checklist No. MS 06 D*'*
6/84 Setlefectory item Yes No N/A Commente e.
Does CCW outlet temperature meet naximum permissible temperature of 120* at all times to:
e SI pumps X
SI pumps and centrifugal charging e
Centrifugal charging X
pumps are not cooled by CCW. Con-tainment spray pump receives ~ 130*
water during LOCA.
Containment spray pumps per Page 16 of B0P-FR-1 X
CCW heat exchanger spec. MS-49 Section 3.5.C.4 allows outlet temperature to reach 135'F during recirculation. This is acceptable per pump vendor data.
f.
Does the surge tank vent valve close automatically on X
See Observation MS-06-01.
receipt of a CCW loop high radiation signal?
-1 s"'
r j
Texas Utilities Generating Company; 84056
~
Sheet 4 of 4 Independent Assessment Program, Phase 4
,