ML19327A259
| ML19327A259 | |
| Person / Time | |
|---|---|
| Site: | La Crosse File:Dairyland Power Cooperative icon.png |
| Issue date: | 09/07/1979 |
| From: | DAIRYLAND POWER COOPERATIVE |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19327A258 | List: |
| References | |
| RTR-NUREG-0578, RTR-NUREG-578 LAC-6486, NUDOCS 8008050071 | |
| Download: ML19327A259 (3) | |
Text
___
ENCLOSU RE 1 - INFORMATION ON SYSTEMS CAPAB; AND TRAN5IENT CORE COOLING
()
v Shutdown Condenser System General System Design Information b
Yes.
Condensate Return Valve Pos
- Are the instruments and equipment affected Indication will be lost.
io by containment flooding (Yes/No)?
All automatic valves except 62-2!
Normal position of valves, indication (Shutdown Condenser Drain Trap In location, direct or indirect indi-tion) are normally closed.
There cations.
direct position indication on al:
All automatic valves except 62-2!
Failed state of each valve (Shutdown Condenser Drain Trap In tion), 62-25-018 (Demineralized i Header Isolation). and 62-25-003 None.
Valves open on de-energiz:
Power sources required for system oper-and low air pressure.
ation (including surport systems).
Support Systems:
Demin. Water - TB MCClA HPSW - Diesel Driven Number of safety and relief valves, None relieving capacity, cycling capability (number of times without air supply).
Are there alternate air supplies?
- Relief and safety valve setpcints.
None l
l A
- System trips.
None l
- Arc auxiliary systens required for oper-Ye s,. 1)
Demin Water, or 2) Highl ation?
(Yes/No)
If yes, what are they?
sure Service Water to provide he transfer medium for Shutdown Condenser.
l
- valves.
There is direct po0!
l indication in the control room l
62-25-001 and 62-25-011 (Condo Steam Inlet Valves), 62-25-008 62-25-012 (Shutdown Condenser l
\\
1 densate Auto Valves) and 62-2Q g
(Off-Gas Vent Automatic Valve)'
+
LSee Attachment A).
- COff-Gas Vent Automatic Valve)!
open.
Valves 62-25-017, 62-2$
and 62-25-003 fail closed.
80080500?l' i
2 OF PROVIDING POST-ACCIDENT High Pressure Core Spray Systera Low Pressure Core Sprav Sve om liticn No No y 4 Valve 53-25-001 is normally closed.
Valve 017 Valves 53-25-002, 53-25-003, and 53-25-008 53-25-001 has local direct position indi-
'g are normally open.
Valve 53-25-004 is norm-cation and has direct position Indica-ally closed.
These valves have local direct tion in the control room.
(See Attach-3 position Indication and have direct
- ment B).
L-017 Valves 53-25-002, 53-25-003, and 53-25-008 Valve 53-25-001 falls open.
Irlc-fall open. Valve 53-25-004 falls closed.
htcr to
.ng 1A and 18 Essential Buses.
120V A-C Noa-Interruptible Bus (See Attachment 1)
Two.# @ e on each ptsnp discharge 50 GPM @
On None 0
1450 100 F water temperature.
NA.
Spring loaded, self-actuated.
1450 PSIG NA
.None None PrcO-ht I
- position Indication in the control room.
r (see Attachment B).
nCar Iand scn-P 5003 e
4 fail
>018 i
l _
ENCLOSURE 1-INFORMATION ON SYSTEMS CAPABL.
AND TRAN5IENT CDRE CDDLING System Activation Shutdown Condenser System
- 1) Reactor Pressure High (1325) CHI or 2
- 2) Reactor Bldg. Steam isolation Valve na
- Automatic startup logic (initiation full open; or 3) Turbine Bldg. Steam Iso j
signals) and power source (AC/DC).
Valve not full open; through relays powei 120V AC; from non-interruptible bus to vi 4
operating solenoids powered by 125V DC.
w e. de-eneralze to operate.
Yes.
Condensate Return Valves 62-25-002 E*" '
- Auto initiation built-in time delay 62-25-001 and 011.
off-cas Vent closes (Yes/No)?
If Yes, what is time 2 minutes later.
required?
- Can manual initiation of the system be done in the control Room?
(Yes/No)
If no, what acticns are required and how long will they take?
- Do ECCS initiation signals override all NA (Systen not affected by ECCS) other modes of operation?
(Yes/No)
If no, identify.
- Are actions performed by the operator for No system cperation and centrol after initiation of the system?
(Yes/No)
If yes, explain (up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />) ?
- Are there systen interlocks and diversicn No for systems in Table I?
(Yes/No)
If yes, explain.
\\
(
Or PROVIDING Fo:3 T - A t.L a v r. n 4 Migh Pressure Core Spray System Low Pressure Core Spray Systert
- or
-12" Reactor Water Level on any of three
-12" Reactor water level on any#of three it level channels and less than 30 DP be-I tion level channels.
we by 5 PSIG Containment Building pressure on tween containment building and reactor
)
plye either of two pressure switches.
vessel.
All AC AC
- b No No ives Yes No.
Manually open the valve 3 minutes.
No.
Initiation of Boron injection Systen Yes diverts HPCS Pumps discharge to the recircul-atton loops.
The Boron injection System can only be initiated canually from the Control Room.
No No Yes.
HPCS can be diverted by Initiation of No the Boron injection System. The Boron in-Jection System can only be initiated man-ually from the Control Room.
j
ENCLOSURE 1 - INFORMATION ON SYSTEMS CAPA]
AND TRAN5IErsT CORE COOLING General System Design Information Alternate Core Spray System (Low Press. Coolant Injection Systei Are the instruments and equipment affected 4
l by containment flooding (Yes/No)?
No Normal position of valves, indication Motor operated valves 38-30-001 and location, direct or indirect indi-38-30-002 are normally closed.
The cations.
direct local position indication on motor operated valves ** (See Attachmi Failed state of each valve The motor operated valves fail as 11 Power sources required for system oper-1 Valve controlled by Rx Plant 125 1 ation (including support systems).
or 1 Valve controlled by 120 VAC Two diesel driven pumps Number of safety and relief valves,
- 1. One 150 psi relief valve on disci relieving capacity, cycling capability of each of 2 diesel driven pumps (number of times wi thout air supply).
- 2. One header relief valve set at 2(
Are there alternete air supplies?
capacity 303 gpm,
- 3. One header relief valve located i auto valves set at 11400 psi.
Relief and safety /alve setpoints.
150 psi, 200 psi and 1t100 psi Systen trips.
Diesel Engine Overspeed Are auxiliary systems required for oper-ation?
(Yes/No)
If yes, what are they?
No
- All relief valves for system prot items referring to air not applic t
)
- and direct position indicatioG l
for these valves in the Contr(
l Room.
II,E OF PROVIDING POST-ACCIDENT Manual Depressurtration Syste,'
Safety / Relief Valves h) s No No 62-25-013 and 62-25-01 4 (Reactor Emergency I'looding Vent Valves) are normally closed.
Closed 3 10 There is direct local position indication There is direct position indica-th2 on valves 62-25-013 and 62-2;-01t and tion in the Control Room for each mt C.)
at,,,cr on fetnn < na t co r nn r n,- t h r, s,. +
relief valve.
62-25-013 and 62-25-Olts fail open on N #^
loss of N2 and fail closed on loss of control power.
120 VAC non-interruptible 125 VDC Rx Plant Battery Systems None de-energi7e to activate 3
Grga N/A 1390=: 296 x 103 =/hr, l't20=:
10 psi 302 x 103 =/hr unlimited - self-actuated sprine loadeJ.
N/A i
i N/A One relief is set at 1390=
Two reliefs are set at 11126=
I; N/A None I
i
! Yes to valves No l Nitrogen System Loss of pressure opens valves.
I crion
- valves in the Control Roo'.
ble.
(See At tachrtent A. )
i il i
.