ML17328A478
| ML17328A478 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 10/04/1990 |
| From: | NRC |
| To: | |
| Shared Package | |
| ML17328A479 | List: |
| References | |
| NUDOCS 9010160206 | |
| Download: ML17328A478 (4) | |
Text
PLANT SYSTEM SURVEILLANCE RE UIREMENTS Continued b)
Emptying a longitudinal sample from an adsorber tray, mixing the adsorbent thoroughly, and obtaining samples at least two inches in diameter and with a length equal to the thickness of the bed.
Subsequent to reinstalling the adsorber tray used for obtain-ing the carbon sample, the system shall be demonstrated OPERABLE by also verifying that the charcoal adsorbers remove greater than or equal to 99% of a halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with ANSI N510-1980 while operating the ventilation system at a flow rate of 25,000 cfm plus or minus 10%:
d.
At least once per 18 months by:
1.
Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 6 inches Water Gauge while operating the ventilation system at a flow rate of 25,000 cfm plus or minus 10%.
2.
Deleted.
3.
Verifying that the standby fan starts automatically on a Containment Pressure--High-High Signal and directs its exhaust flow through the HEPA filters and charcoal adsorber banks on a Containment Pressure--High-High Signal.
After each complete or partial replacement of HEPA filter band by verifying that the HEPA filter banks remove greater than or equal to 99% of the DOP when they are tested in-place in accordance with ANSI N510-1980 while operating the ventilation system at a flow rate of 25,000 cfm plus or minus 10%.
After each complete or partial replacement of a charcoal adsorber bank by verifying that the charcoal adsorbers remove greater than or equal to 99% of a halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with ANSI N510-1980 while operating the ventilation system at a flow rate of 25,000 cfm plus or minus 10%.
COOK NUCLEAR PLANT - UNIT 1 9010160206 901004 PDR ADOCK 05000315 P
PDC 3/4 7-25 AMENDMENT NO. fg egg
TABLE 4.3-10 POST-ACCIDENT MONITORING INSTRUMENTATION SURVEILLANCE RE UIREMENTS INSTRUMENT CHANNEL CHANNEL CHECK CALIBRATION 1.
Containment Pressure 2.
Reactor Coolant Outlet Temperature THOT (Wide Range) 3.
Reactor Coolant Inlet Temperature
- T (Wide Range) 4.
Reactor Coolant Pressure
- Wide Range 5.
Pressurizer Water Level 6.
Steam Line Pressure 7.
Steam Generator Water Level - Narrow Range 8.
RWST Water Level 9.
Boric Acid Tank Solution Level
- 10. Auxiliary Feedwater Flow Rate
- 11. Reactor Coolant System Subcooling Margin Monitor 12.
PORV Position Indicator
- Limit Switches 13.
PORV Block Valve Position Indicator - Limit Switches 14'afety Valve Position Indicator - Acoustic Monitor
- 15. Incore Thermocouples (Core Exit Thermocouples)(4)
- 16. Reactor Coolant Inventory Tracking System (Reactor Vessel Level Indication)
- 17. Containment Sump Level*
- 18. Containment Water Level*
M M
M M
M M
M M
M M
M M
M M
M M(2)
M M
R R
R R
R R
R R
R R
R R
R R
R(1)
R(3)
R R
(1)
Partial range channel calibration for sensor to be performed below P-12 in MODE 3.
(2)
With one train of Reactor Vessel Level Indication inoperable, Subcooling Margin Indication and Core Exit Thermocouples may be used to perform a CHANNEL CHECK to verify the remaining Reactor Vessel Indication train OPERABLE.
(3)
Completion of channel calibration for sensors to be performed below P-12 in MODE 3.
(4)
The core exit thermocouples will not,be installed until the 1988 refueling outage; therefore, surveillances will not be required until that time.
See license amendment dated April 10, 1987.
The requirements for these instruments will become effective after the level transmitters are modified or replaced and become operational.
The schedule for modification or replacement of the transmitters is described in the Bases.
COOK NUCLEAR PLANT - UNIT 2 3/4 3-47 AMENDMENT NO. gg, gg, f3[
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