ML20235R284
| ML20235R284 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 09/29/1987 |
| From: | NORTHEAST NUCLEAR ENERGY CO. |
| To: | |
| Shared Package | |
| ML20235R279 | List: |
| References | |
| NUDOCS 8710070851 | |
| Download: ML20235R284 (4) | |
Text
. - _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
/
Docket No. 50-245 B12603 i
Millstone Nuclear Power Station, Unit No.1 Proposed Revision to Technical Specifications Control Room Halon System i
I
)
I l
i i
l l
l h[j0070851 870929 ADOCK 05000245 p
PDR September,1987
.LIMZTIHG CONDITION FOR OPERATION 3 12 FIRE PROTECTION SYSTEMS C.
Carbon Dioxide and Halon 1301 Systems 1.
The following high pressure CO2 system shall be OPERABLE (activation system operable and gas boundary intact) with the storage tanks at least 90% of full charge weight whenever equipment in the high pressure CO2 protected areas is required to be OPERABLE, a.
Gas Turbine Enclosure 2.
From and after the time any of the above CO2 systems is determined to be inoperable, within one hour establish a continuous fire watch with backup fire suppression equipment for the unprotected equipment and/or area; restore the system to OPERABLE status within 14 days or, in lieu of any other report required by Specification 6.6.1, prepare and submit a Special Report to the Commission, pursuant to Specification 6.9.2, within the next 30 days outlining the action taken, the cause of the inoperability and the plans and schedule for restoring the system to OPERABLE status.
3 The following Halon 1301 systems shall be operable (activation system operable and gas boundary intact), with the minimum number of storage containers shown each having a net weight of not less than 95% of full charge weight.
)
a.
Fire Pump House - 1 container b.
Cable Vault - 2 containers c.
Control Room - 3 containers l
4.
From and after the time any of the above Halon 1301 systems is l
determined to be inoperable, within one hour establish a continuous fire watch with backup fire suppression equipment for the unprotected equipment and/or area; restore the system to OPERABLE status within 14 days or, in lieu of any other report required by Specification 6.6.1, prepare and submit a Special Report to the Commission, pursuant to Specification 6.9.2, within the next 30 days outlining the action taken, the cause of the inoperability and the plans and schedule for restoring the system to OPERABLE status.
l SURVEILLANCE REQUIREMENT 4.12 FIRE PROTECTION SYSTEMS l
C.
Carbon Dioxide and Halon 1301 Systems 1.
Each of the high pressure CO2 systems in 3 12.C.1 shall be demonstrated OPERABLE:
a.
At least once per 6 months, by verifying CO2 storage tank
- weight, b.
At least once per 18 months, by:
Millstone Unit 1 3/4 12-7 l
SURVEILLANCE REQUIREMENT (Continued) l 4.12 FIRE PROTECTION SYSTEMS 4.12.C.1.b.(1)
Verifying the system is capable of automatic actuation upon receipt of a simulated test signal and manually through operator action, and that the associated following automatic actuations occur:
I a.
Gas Turbine
]
I o
Gas Turbine Shutdown j
o Engine Compartment East and West Damper Closure o
Gear Reduction Compartment East and West Damper i
Closure (2)
Performance of a visual inspection of the discharge nozzles to assure no blockage.
2.
The Halon 1301 Systems referenced in 3.12.C.3 shall be demonstrated OPERABLE:
{
a.
At least once per 6 months the weight and pressure of the refillable container shall be checked.
If the container shows a loss in net weight of more than 5% or the pressure (corrected to 700F) drops to 325 psig, it shall be refilled or replaced, b.
At least once per 18 months, by:
(1)
Verifying the system is capable of automatic actuation upon receipt of a simulated test signal and manually through operator action, and that the associated following automatic actuations occur:
a.
Fire Pump House Exhaust Fan Shutdown
)
b.
Cable Vault Smoke Exhaust Fan Shutdown and Damper Closure, North and South c.
Control Room:
l o
HVH-8 Fan and Intake Dampers Closure o
HVT-10 Lavatory Fan Shutdown o
HVT-11 Fan and Transfer Smoke Damper Closure o
Cable Vault Air Supply Smoke Damper Closure o
Control Room Stove Shutdown l
l
)
(2)
Performance of a visual inspection of the discharge l
nozzles to assure no blockage.
i l
l l
Millstone Unit 1 3/4 12-8 j
C-_
ST MND s
UEE r
MMR 6
o IUI 1
2 t
NRU c
I TQ e
MSE t
NR e
I d
EK E
t O
L n
M LB e
S AA c
TL 8
a OI 2
2 j
TA d
V a
A
)
e 2l
( b S
a T
or ND we MEE t p UMR o
MUI S
o r.
I RU 5
1 1
s T
Ni NTQ e
N ISE n
MNR o
E M
E I
z U
T T
R O
A n
T N
E o
- 2. S H
i 2N E
t L
c
.I 1
LB e
1 1
t 3N AA 7
O TL e
EI OI 6
d LT TA BC V
4 e
AE A
5 t
TT ar E
D v
a e
p E
l
)
e R
E s
I 6
m F
m 6
o R
3 r
f t
A n
v 1
1 e
e e
b m
l p
E m
m t
i
(
R R
s u
u q
1 y
y m
E 2
r r
H e
e s
N V
T S
t t
r O
s t
t o
I H
m e
m a
a t
T o
s o
B B
c A
A o
u o
e C
5 R
o R
2 3
t O
1 H
2 2
e L
l y
d T
o n
r T
T T
r e
e e
N t
e t
l E
n r
t b
M o
c a
a U
f C
S B
a b
r R
e T
p S
o N
3 4
5 n
I 1
1 1
I
-