ML19209A540
| ML19209A540 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 09/28/1979 |
| From: | Counsil W CONNECTICUT YANKEE ATOMIC POWER CO. |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| References | |
| TASK-03-01, TASK-05-10.B, TASK-05-11.B, TASK-07-03, TASK-10, TASK-3-1, TASK-5-10.B, TASK-5-11.B, TASK-7-3, TASK-RR NUDOCS 7910040295 | |
| Download: ML19209A540 (18) | |
Text
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CONNECTICUT YANKEE ATOMIC POWER COMPANY BERLIN. CO N N ECTIC U T P.O. BOX 270 H ARTFORD. CON N ECTICUT 06101 Tetseno=
203-666-6911 September 28, 1979 Docket No. 50-213 Director of Nuclear Reactor Regulation Attn:
Mr. D. L. Ziemann, Chief Operating Reactors Branch #2 U. S. Nuclear Regulatory Commission Washington, D. C.
20555
Reference:
(1)
D. L. Ziemann letter to W. G. Counsil dated June 7,1979.
Gentlemen:
Haddam Neck Plant Systematic Evaluation Program (SEP)
Review of Safe Shutdown Systems In Reference (1), the NRC Staff transmitted to Connecticut Yankee Atomic Power Company (CYAPCO) a draft evaluation of the above SEP topic and requested that CYAPCO review its factual correctness.
In addition, CYAPCO was requested to provide information which may be missing in the evaluation.
In response to the Staff's request, CYAPC0 provides Attachment (1) listing the corrections to certain erroneous statements identified in the draft document.
Attachment (2) provides clarifying remarks to Table 3.1, Classification of Shutdown Systems Haddam Neck Plant, and various other tables contained in the draft document.
Very truly yours, CONNECTICUT YANKEE ATOMIC POWER COMPANY
//
M W. G. Counsil Vice President Attachment 79100402 9 6 1090 245
DOCKET NO. 50-213 ATTACIDiENT (1)
HADDAM NECK PLANT SYSTEMATIC EVALUATION PROGRAM (SEP)
REVIEW OF SAFE SHUTDOWN SYSTEMS SEPTDIBER, 1979 1 V'10 2 46
Page/ Paragraph Comment Correction 6/2 TAVE is not maintained by the Chemical and Volume Control System (CVCS), but by the rod control system, if in " automatic".
This sentence will be correct if TAVE is removed.
14/4 CYAPCO has interpreted "a station blackout" as a loss of both AC and DC power. Therefore, this should read, "a loss of AC.
14/4 The reactor coolant pumps continue to operate for approximately one (1) minute if the turbine was on-line at the time off-site power was lost.
20/2 The Residual Heat Removal (RHR) System and CVCS have also been designed for a maximum ground acceleration of 0.17 g at zero period.
23/ Footnote Air operated components necessary for safe shutdown fail to their safe position upon loss of air.
29/3 Each auxiliary feed pump turbine has a relief valve which opens at 600 psig, 34/4 At. normal water level, each steam generator contains 37,500 lbm of feedwater during full power operation.
38/2 The auxiliary feedwater pumps are supplied from the demineralized water storage tank.
The draft document states that these pumps are supplied from the condensate storage tank.
41/3 The primary water storage tank capacity is incorrectly reported as 100,000 gallons.
The correct capacity is 150,000 gallons.
42/2 The auxiliary feedwater pump NPSH requirement for a flow rate of 69.5 gpm is approximately 17 feet.
This NPSH requirement is available.
77/2 The low pressure safety injection (LPSI) pump flow rate is incorrectly reported as 5,000 gpm at a discharge pressure of 252 psig.
The correct flow rate is 5,500 gpm at a discharge pressure of 254 psig.
78/l One train of ECCS includes one RHR pump, one LPSI pump, one HPSI pump, and one charging pump.
1090 24/
DOCKET NO. 50-213 ATTACHMENT (2)
HADDAM NECK PLANT SYSTEMATIC EVALUATION PROGRAM (SEP)
REVIEW OF SAFE SHUTDOWN SYSTDIS SEPTEMBER, 1979 10'J0 248
DRAFT.
TABLE 3.1 CLASSIFICATION OF SHUTDOWN SYSTEMS HADDAM NECK PLANT Quality Group Seismic Plant Plant Components / Subsystems R.G. 1.26 Design R.G. 1.29 Design Remarks Reactor Control and Category I Note.1
- NA - not applicable Protection System NA*
Note 1:
All systems and Auxiliary Feed System equipment are considered AFS capable of withstanding the seismic forces corresponding Turbine driven pumps (2) ASME III Category I
.I3 to a ground acceleration of at Class 3 U
least 0.03g unless otherwise noted in this table. (Ref.
Piping and Valves from ASME III ASA 6SI l Category I
. i'1 %'
FDSAR section 2.5) pump discharge to Class 3 O
valves 156-1 thru Note 2:
Pressurizer PORV's, 156-A and 182 HPSI, and Containment Fan Cc9lers as discussed in 8
Demin Wtr. Storage ASME III ASA B94 Category I
.17 t Section 3.2j' Auxiliary Feed will be added to this Pumpg"later.
Tank Class 3 6
table Category I
.17 Plant design info. obtained Piping and valves to ASME III p$g gg,g from FDSAR and CYAPC0 letter suction of AFS pumps Classg3 Switzer to Schwencer of from Demin. Wtr.
Storage Tank June 29, 1977 (ISI)
Piping and valves from ASME III ASA 6 31.)
Category I
.I'#
C7 and including' valves Class 2 156-1 thru 156-4, 182 o
and main feed valves c
MOV-11, 12, 13, 14 and C
135-1 thru 135-4 to steam generators a
G
DRAFT TABLE 3.1 (Continued)
Quality Group Seismic Plant Plant Components / Subsystems R.G. 1.26 Design R.G. 1.29 Design Remarks Main Steam System MS Safety valves (16)
ASME III ASHC v3 C&tegory I
.03 Class 2 MS Atmospheric relief ASME III ASME 6 Category I
.o3 (HICV-1201) ca.A n 2.
Piping and valves from ASME III ASA 6511 Category I
.O3 Steam generator to and Class 2 including MS isolation
~
valves and valves HICV-1201, PICV-1206A, B and drain and trap isola-tion valves TV-1212 and TV-1213 and vent isola-tion valves.
Piping and valves ASME III ASA G }l. l Category I
.D5 (blow-off) from steam Class 3 generators to and including blow-off valves TV-1312-1 thru 4 and 506, 515, 522 and 529.
Piping from valves PICV-1206A, 8 c-to aux. feed pumps e
including valves C-SV-1216, A, B N
U7 CD
DRAFT
~
~
TABLE 3.1 (Continued)
Quality Group Seismic Plant Plant Components / Subsystems R.G. 1.26 Design R.G. 1.29 Design Remarks Service Water System (SWS
- [ Category I
./7 SWS pumps (4)
EII E
Piping and valves ASME III
?ASA 43/./ Category I
</2p for containment Class /J cooling up to and including valves 263 thru 270 Piping and valves ASME III
?)JA /JJ/,/
Category I
,170 TubesidesofCCWandspentE excluding above and Class 3 y
up to and including valves 606, 282, and MOV-1, 2, 3, and 4 Chemical and Volume Control System FDSAR Table 5.2.1-1 ASME Vill lk i
Charging pumps ASME III
": $t Category I
, I") 8)
- D NT **
d 3
Class 2 t
Piping (1 cop;1)let-ASME III ASA C.AT E}8 f] T
'll 36 down via regen. HX Class 1 B31.1 and letdown vilves c
to and including 1etdown isolation O
valvec rv LD e
DRAFT TABLE 3.1 (Continued)
Quality Group Seismic Plant Plant Components / Subsystems R.G. 1.26 Design R.G. 1.29 Design Remarks Regenerative Heat ASME III ASME VIII Category I 37$
Exchangers (3)
Class 1 Cases 1270N and 1273N Piping loop drain line ASME III ASA B31.1 Category I 37 S via cooler to ag Class 1 7
including valver 1847 and TV-18475 Piping and valves pump ASME III ASA B31.1 Category I 37g discharge from and Class 1 including valves 399 6>
and 296 to RCS Piping and valves from ASME III ASA B31.1 Category I 37 8,
pump discharge to Class T
centainment isolation valves 399 and 296 Piping from pump dis-ASME III ASA B31.1 Category I
.11 q charge via reactor Class 2 coolant pumps and from TV-1847 to seal water HX 9
sg; O
(;.'
N
DRAFT TABLE 3.1 (Continued)
Quality Group Seismic Plant Plant Components / Subsystems R. G. 1. 26 Design R.G. 1.29 Design Remarks Piping and valves down-ASME III ASA B31.1 Category I
.I7 stream of letdown isola-Class 2 tion valves to the VCT including valves 343A, the interface with ACS, TCV113A via the reactor coolant filter and via relief valves 205, 252 and TCV113B
~
Volume Control Tank ASME III ASA B31.1
.%st-Category I 178 (VCT) connecting pip-Class 2
(
.a ing and valves up to valves 1847 (relief),
332 (relief) FCV 112C, 246, 251 (relief), 324, 255 and 317 Piping and valves from ASME III ASAB31/.1 Category I
,17 VCT to charging pumps Class 2 up to and including valves 33A, B, MOV-366, 320, 369, and the RWST via 372A e'
Piping and valves down-ASME III ASA B31.1 hCategory I
.Mi stream of TCV 113A via Class 3 d
C demineralizers te valve 343A, 220, 234 235 and including demineralizers fill and drain valves y
U-U
TABLE 3.1 (Continued)
Quality Group Seismic Plant Plant Components / Subsystems R.G. 1.26 Design R.G. 1.29 Design Remarks Boric Acid Tank (BAT)
ASME III
"; C A Category I
. I? 8 Supply Safety Injec-Class 3 ASME vill
(.
tion System.
BAT connected piping ASME III ASA B31.1 Category I
.37 and valves up to and Class 3 including valves 347 and 348
~
ru o*ST r3 Boric Acid Stainer ASME III No-C-ede Categorv I
.l7 $
Class 3 svauDa m 0
Drain Cooler Heat ASME III ASME VIII Category I
.Il S, Exchanger (Tube side) Class 1 Case 1270N O
(shell side)
E III gg Category I
.17 e
Seal Water Heat ASME III ASME VIII Category I
,17 (
Exchange (Tube side) Class 2 Case 1270N O
(shell side) ASME III ASME VIII Category I
.17
- Class 3 y
Non-Regenerative Heat ASME III ASME VIII Category I
,17 q Exchanger (Tube side) Class 2 Case 1270N d
C
(<
f side) ASME III ASME VIII Category I
,l7
- w Class 3 y
rv U-b
DRAFT
~
TABLE 3.1 (Continued)
Quality Group Seismic Plant Plant Components /Subsyst*ms R.G. 1.26 Design R.G. 1.29 Design Remarks
.Il&(
Class 3 portions of CVCS Mixed-bed deminera-ASME III ASME VIII Hon-Category I associated with deminera-lizers Class 3 Case 1270N lizers are not required for safe shutdown.
V:1ume control tank ASME III ASME VIII Category I
- Il}
Class 2 Case 1270N Seal water injection ASME III ASME VIII Category I 37
- filters Class 2 Case 1270N
(
Boric acid filter ASME III ASME VIII Category I
. l? 8 a*
Class 3 I
Piping and valves from ASME III ASA B31.1 Category I 37 Q BATviaboricacidpumpsClass/3 G
and boric acid filter to valves 320, 369, 366, FCV 112C, 391, 342A Residual Heat Removal RHR System RHR pumps (2-)
ASME III W spec.
Category I
.I78 RHR pumps provide ECCS con-tainment recirculation Class 2
" ::i
, ~_
ASNE Vill IX e
N O'
V
A
~
TABLE 3.1 (Continued)
Quality Group Seismic Plant Plant Components / Subsystems R.G. 1.26 Design R.G. 1.29 Design Remarks RHR heat exchangers (Ture side) ASME III ASME VIII C Artj ory I
, l'I Class 2 Case 1720 N v V (shell side) ASME III ASME VIII Class 3 Piping and valves to ASME III ASA B31.1 +
Category I
. 17 }
RHR pump suction from Class 2 3pec.inc nu e. lee RWST, containment sump c.ersc5 and valve 781 Piping and valves from ASME III ASA B31.1 t Category I
,I? c RHR pump discharge and Class 2 s,pec.ml ave. lear
(
0 via RHR heat exchangers
,,3 and bypass to RCS (valves 872 A, B, 803),
CVCS, RWST, containment spray, recirculation line to RHR pumps, relief to RWST, and charcoal filter spray Process Instrthentation and Controls, Category I
.17 *
- SER by DRL dated July 1, 1971 Diesel generators NA 9
s
-,3 Diesel fuel oil, lube ASME III gg(gy/./
Category I
.17
- 9 c-,
oil, starting air Class 3 Category I N
DC power supply system NA ui
EQUIPMENT LOCATION OPERATION POWER SUPPLY MauunL M Atmospheric Dump Upper level of the Control room and Valve steam and feedwater penetration enclosure Hogging Jets Intermediate Local manual operation No ej : tic.- eleCbC"'k level of the only (burmc. Star.T.uP) power is turbine building, needed near genstator and of turbine SJAEs Intermediate level locat., MeubAL No electrical of the turbine b1dg.
Otaannou out.g power is needed 1" steam vents Upper level of the local manual No electrical steam and feedwater operation only power is needed penetration enclosure w
v.
AFP turbines (see discussion of AFP)
(see discussion of AFP)
(See discussion of AFP)
AFP turbine RVs Adjacent to each RVs are self-actuated No electrical power AFP turbine when turbine casing is needed pressure reaches M O psig.
The CR operator caww.t cause the RVs to open, and the RVs canwot l
also be manually opened 4
Q Dl%
u.
N
EQUIPMENT _
LOCATION ERATION POWER SUPPLY Auxiliary Feedwater Lower level of the Both pumps are operable No electrical Pumps (2) steam and feedwater from the CR using an air power is needed penetration area controller which positions (north and south end) the steam inlet valves.
If air pressure is lost, the valves can be positioned manually.
MOV 35 (single Lower level of the Control room and local manual MCC #7(bus 7-6) valve which isolates steam and feedwater AFW from entering penetration area, Containment - 1 above south pump path of AF flow)
Auxiliary FRVs (4)
Feedwater Regulating Control room (using air Control air, 1
o valve area of turbine signal) fail open building on loss of air e
Feedwater MOVs n-M Feedwater Regulating Control room manua!
490V M CC. S GUS f or 6 (must be shut) valve area of and turbine building oust bo n.f u)H EE L or Feedwater reg.
Feedwater Regulating Control room Control air, fall shut valves must valve area of on loss of air be shut turbine building l
s
<c N
U7 00
olmIOFRATION POWER SUPPLY EQUIPMrNT LOCATION Demineralized Outside, south (true)
- NA -
No electrical Water Storage of containment power is needed Tank (adjacent)
Primary water Outside, about
- NA -
No electrical Storage Tank 50 ft from power is needed containunt Primary Water P A ft, - m roun d Codirol b NAuuaL MCC 8-1 (480 v)
Transfer Pumps Ael and Auto ou (both pumps)
M VC.T Low Le.v e.l Recycle PWST Outside, adjacent
- N/A -
No electrical to PWST is needed Main Condensate Tunfine Buu.piuc, Main Control room 4gv go3 3 2,,,,f 3,3 Pumps (A)
A,,,g geye[
and Au1o ou b s c u. H b u..
m t.o w vress on.e-P-M -I"i IO Recycle PWTPs P A 8 -ciroouel Cowtro1 e.com s4nuva[
leve.
and noio ou VCT ASOV N CC. lo -f P -119 6
'" "" ' ' "
- I 9 tov Mcc 9-Y P-lig4 x0 O
N Li'
'D
F EQUIPMENT LOCATION fl OPERATION POWER SUPPLY RHR Pumps and PA6-Louser Leve.1 Copical bm Wmv (
4 tov Gus c ad 6 Heat Exchangers RCS/RHR MOVs All 4 are inside Control room and MAuual M c.c.r aus 5-7 a.wd 6us, s - 6 containment r
- Valves
""tr't :::t:*- :-t Control room and MAuual Control air (FCV 602) p g. Lower Leve,l Loc. wen in ca.osed no sWou Cooler b. C.dal VAG - Low =c Lent Cootni Rom W49ual Coutro)
AiA FCN
~IT b loc. web iu Ogen VosWiou i
t I
M O
rv Ch C"D
EQUIPMENT LOCATION h if t 1 RATION POWER SUPPLY Service Water Pumps Screen House Manually started from P-37-1A 480V Bus 4 the control room, auto-P-37-18 480V Bus 5 natically started upon P-37-1C 480V Bus 6 loss of AC & subsequent P-37-1D 480V Bus 7 EDG startup, and chscung.s E ME ADE tt low YCehu ttf.
1-Tutts$u e. Eth
\\utomatically upon loss N cc. C 4. P A g (you 3, c/,)(nov 1+t)
SWS Header Isolation Valves if AC and Nwoal Grom noS r-T + F-4
{Aov g,4) co 4 roi roou e
0 4
C
- 8 O
N1 Ch
EQUIPMENT LOCATION TION POWER SUPPt.Y Charging Pumps (2)
Separate cubicles on Operable from the control CPA - 4kV 6059 and Metering Pump the 21'6" level room and Arto Svan.T ou hca.
CPB - 9Kv GUS*t of the PAB ptrl ?ren to - cuan.?o. ors op1 Metering Pump - 470 V dos 9 Volume Control Above charging Makeup to the ACT is No electrical power V
Tank pumps on the via the makeup con-power is needed 35'6" !cvel of trol system which is the PAB.
controlled from the control room and fMST SE corner of Level instrumentation and Heaters?
STEA PAB (just North makeup control is from of containment) the control room.
RW9T
-??? C:: : :: i; i,iti tzd NANual 8t.d 69 [o 94 6 g
bht Oon.ic A<in 3s'6 levei of the tevei instrumentation is im Heaters?
- TAux, PAB.
couiro\\ reou Tonic Ar.Hator M CC t -l 6o b T -f and eco h _, makeup control Red Trace wtt 2-1 B D S 9 - 7, F -f.
b menoa l to TAG d
Boric Acid 3eneath the BAT, Operable from control Room BATP-1 A M ct. E -l 6u s 2 -3 Transfer
?)'6" level of and Au1o STAn.T ou V C.T BATP-fl6 N cc t -l 605E-L Pumps (BATP) l the PAB Low teve e
j N