ML20237B271
| ML20237B271 | |
| Person / Time | |
|---|---|
| Site: | Catawba |
| Issue date: | 12/07/1987 |
| From: | NRC |
| To: | |
| Shared Package | |
| ML20237B273 | List: |
| References | |
| NUDOCS 8712160143 | |
| Download: ML20237B271 (8) | |
Text
r EMERGENCY CORE COOLING SYSTEMS v
LIMITING CONDITION FOR OPERATION (Continued) 3)
The volume weighted average boron concentration of the three limiting accumulators 1500 ppm or less, return the volume weighted average boron concentration of the three limiting accumulators to greater than 1500 ppm and enter ACTION c.2 within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> of the low boron determination or be in HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and reduce pressurizer pres-sure to less than 1000 psig within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
SURVEILLANCE REQUIREMENTS 4.5.1.1.1.1 Each cold leg injection accumulator shall be demonstrated OPERABLE:
a.
At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by:
1)
Verifying, by the absence of alarms, the contained borated water volume and nitrogen cover pressure in the tanks, and 2)
Verifying that each cold leg injection accumulator isolation valve is open, b.
At least once per 31 days and within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> after each solution volume increase of greater than or equal to 75 gallons by verifying the boron concentration of the accumulator solution; At least once per 31 days when the Reactor Coolant System pressure c.
is above 2000 psig by verifying that power is removed from the isolation valve operators on Valves NI54A, NI65B, NI76A, and NI888 and that the respective circuit breakers are padlocked; and d.
At least once per 18 months by verifying that each cold leg injection accumulator isolation valve opens automatically under each of the
{
4 following conditions:**
1)
When an actual or a simulated Reactor Coolant System pressure signal exceeds the P-11 (Pressurizer Pressure Block of Safety Injection) Setpoint, and 2)
Upon receipt of a Safety Injection test signal.
4.5.1.1.1.2 Each cold leg injection accumulator water level and pressure channel shall be demonstrated OPERABLE:
J
- This surveillance need not be performed until prior to entering HOT STANDBY following the Unit I refueling.
CATAWBA - UNITS 1 & 2 3/4 5-la Amendment No.32 (Unit 1) 8712160143 871207 Amendment No.23 (Unit 2)
PDR ADOCK 05000413 P
P L-- - -- - - - - D R
s 3
EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)
At least once per 31 days by the performance of an ANALOG CHANNEL a.
OPERATIONAL TEST, and l
b.
At least once per 18 months by the performance of a CHANNEL I
CALIBRATION.
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CATAWBA - UNITS 1 & 2 3/4 5-lb Amendment No. 32 (Unit 1)
Amendment No. 23 (Unit 2) l
3/4.5 EMERGENCY CORE COOLING SYSTEMS 3/4.5.1 ACCUMULATORS COLD LEG INJECTION LIMITING CONDITION FOR OPERATION l
3.5.1.1.2 Each rold leg injection accumulator shall be OPERABLE with:
a.
The discharge isolation valve open, b.
A contained borated water volume of between 7704 and 8004 gallons, c.
A boron concentration of between 1900 and 2100 ppm, d.
A nitrogen cover pressure of between 585 and 678 psig, and e.
A water level and pressure channel 0PERABLE.
APPLICABILITY:
MODES 1, 2, and 3*.
(VHI physically disconnected; Cold Leg Accumulators and discharge paths suitably modified)
ACTION:
With one cold leg injection accumulator inoperable, except as a result a.
of a closed isolation valve or boron concentration less than 1900 ppm, restore the inoperable accumulator to OPERABLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
b.
With one cold leg injection accumulator inoperable due to the isolation valve being closed, either immediately open the isolation valve or be in at least H0T STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
c.
With one accumulated inoperable due to boron concentration less than 1900 ppn and:
1)
The volume weighted average boron concentration of the three limiting accumulators 1900 ppm or greater, restore the inoperable accumulator to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of the low boron determination or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and reduce pressurizer pressure to less than 1000 psig within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
2)
The volume weignted average boron concentration of the three limiting accumulators less than 1900 ppm but greater than t
1500 ppm, restore the inoperable accumulator to OPERABLE status or return the volume weighted average boron concentration of the three limiting accumulators to greater than 1900 ppm and
- Pressurizer pressure above 1000 psig.
)
CATAWBA - UNITS 1 & 2 3/4 5-2 Amendment No. 32 (Unit 1)
Amendment No. 23 (Unit 2)
EMERGENCY CORE COOLING SYSTEMS LIMITING CONDITION FOR OPERATION (Continued)
ACTION: (Continued) enter ACTION c.1 within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> of the low boron determination or be in HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and reduce pres-surizer pressure to less than 1000 psig within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
3)
The volume weighted average boron concentration of the three limiting accumulators 1500 ppm or less, return the volume weighted average boron concentration of the three limiting accumulators to greater than 1500 ppm and enter ACTION c.2 l
within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> of the low boron determination or be in HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and reduce pressurizer pres-sure to less than 1000 psig within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
SURVEILLANCE REQUIREMENTS 4.5.1.1.2.1 Each cold leg injection accumulator shall be demonstrated l
OPERABLE:
a.
At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by:
1)
Verifying, by the absence of alarms, the contained borated 1
water volume and nitrogen cover pressure in the tanks, and 2)
Verifying that each cold leg injection accumulator isolation valve is open.
s.
b.
At least once per 31 days and within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> after each solution volume increase of greater than or equal to 75 gallons by verifying the boron concentration of the accumulator solution; At least once per 31 days when the Reactor Coolant System pressure c.
is above 2000 psig by verifying that power is removed from the isolation valve operators on Valves NI54A, NI65B, NI76A, and NI88B and that the respective circuit breakers are padlocked; and d.
At least once per 18 months by verifying that each cold leg injection accumulator isolation valve opens automatically under each of the following conditions:**
1)
When an actual or a simulated Reactor Coolant System pressure signal exceeds the P-11 (Pressurizer Pressure Block of Safety.
Injection) Setpoint, and 2)
Upon receipt of a Safety Injection test signal.
- This surveillance need not be performed until prior to entering HOT STANDBY following the Unit I refueling.
CATAWBA - UNITS 1 & 2 3/4 5-2a
' Amendment No.32 (Unit 1)
Amendment No.23 (Unit 2)
EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 4.5.1.1.2.2 Each cold leg injection accumulator water level and pressure channel shall be demonstrated OPERABLE:
a.
At least once per 31 days by the performance of an ANALOG CHANNEL OPERATIONAL TEST, and b.
At least once per 18 months by the performance of a CHANNEL CALIBRATION.
CATAWBA - UNITS 1 & 2 3/4 5-2b Amendment No.32 (Unit 1)
Amendment No.23 (Unit 2)
EMERGENCY CORE COOLING SYSTEMS UPPER HEAD INJECTION i
LIMITING CONDITION FOR OPERATION 3.5.1.2 Each Upper Head Injection Accumulator System shall be OPERABLE with:
a.
The discharge isolation valves open, b.
A minimum contained borated water volume of 1807 cubic feet, c.
A boron concentration of between 1900 and 2100 ppm, and d.
The nitrogen-bearing accumulator pressurized to between 1185 and 1285 psig.
APPLICABILITY:
MODES 1, 2, and 3.*
ACTION:
a.
With the Upper Head Injection Accumulator System inoperable, except as a result of closed isolation valve (s), restore the Upper Head Injection Accumulator System to OPERABLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, b.
With the Upper Head Injection Accumulator System inoperable due to the isolation valve (s) being closed, either immediately open the isolation valve (s) or be in HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and be in HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
2 SURVEILLANCE REQUIREMENTS
~
4.5.1.2 Each Upper Head Injection Accumulator System shall be demonstrated OPERABLE:
a.
At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by:
1)
Verifying the contained borated water level in the surge tank j
and nitrogen pressure in the accumulators, and j
2)
Verifying that each accumulator discharge isolation valve is open.
b.
At least once per 31 days and within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> after each solution volume increase of greater than or equal to 138.3 gallons by verify-ing the boron concentration of the solution in the water-filled accumulator;
- Pressurizer pressure above 1900 psig.
32 CATAWBA - UNITS 1 & 2 3/4 5-3 Amendment No. 23 (Unit 1)
Amendment No.
(Unit 2)
EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) c.
At least once per 18 months by:
j 1)
Verifying that each accumulator discharge isolation valve closes automatically when the water level is 93.2 i 2.7 inches (Unit 1) and 93.1 1 2.7 inches (Unit 2) above the working line on the water-filled accumulator, and 2)
Verifying that the total dissolved nitrogen and air in the water-filled accumulator is less than 80 scf per 1800 cubic feet of water (equivalent to 5 x 10 5 pound of nitrogen per pound of water).
d.
At least once per 5 years and if the requirements of Specifica-tion 4.5.1.2c.2) are not met by replacing the membrane installed-between the water-filled and nitrogen-bearing accumulators.
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CATAWBA - UNITS 1 & 2 3/4 5-4 Amendment No. 32 (Unit 1)
Amendment No. 23 (Unit' 2)
EMERGENCY CORE COOLING SYSTEMS UPPER HEAD INJECTION (Deleted upon the physical disconnection of the UHI System from the Reactor Coolant System)
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i CATAWBA - UNITS 1 & 2 3/4 5-4a Amendment No. 32 (Unit 1)
Amendment No. 23 (Unit 2)
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