ML20153H277
| ML20153H277 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 02/14/1986 |
| From: | Youngblood B Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20153H280 | List: |
| References | |
| NUDOCS 8602280753 | |
| Download: ML20153H277 (7) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION o
WASHINGTON, D. C. 20555
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DUKE POWER COMPANY NORTH CAROLINA ELECTRIC MEMBERSHIP CORPORATION SALUDA RIVER ELECTRIC COOPERATIVE, INC.
DOCKET NO. 50-413 CATAWBA NUCLEAR STATION, UNIT I AMEN 0 MENT TO FACILITY OPERATING LICENSE Amendment No. 4 License No. NPF-35 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment to the Catawba Nuclear Station, Unit I (the facility) Facility Operating License No. NPF-35 filed by the Duke Power Company acting for itself, North Carolina Electric Membership Corporation and Saluda River Electric Cooperative, Inc., (licensees) dated May 7, 1985, as modified November 7, 1985, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Commission's regulations as set forth in 10 CFR Chapter I; B.
The facility will operate in conformity with the application, as amended, the provisions of the Act, and the regulations of the Commission; C.
There is reasonable assurance: (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations set forth in 10 CFR Chapter I; D.
The issuance of this license amendment will not be inimical to the common defense and security or to the health and safety of the public; E.
The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.
2.
Accordingly, the license is hereby amended by page changes to the Technical Specifications as indicated in the attachments to this license amendment and j
paragraph 2.C.(2) of Facility Operating License No NPF-35 is hereby amended to read as follows:
)
(2) Technical Specifications The Technical Specifications contained in Appendix A, as revised through Amendment No. 4, and the Environmental Protection Plan contained in Appendix B, both of which are attached hereto, are hereby incorporated into this license.
8602280753 860214 7
PDR ADOCK 05000413 P
s Duke Power Company shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.
3.
This license amendment is effective as of its date of issuance.
FOR THE NUCLEAR REGULATORY COMMISSION-B.- J. Youngblood, Director Project _ Directorate No. 4 Division of PWR Licensing-A
Attachment:
Technical Specification Changes Date of I:suance: February 14, 1986 i
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l ATTACHMENT TO LICENSE AMENDMENT N0. 4 FACILITY OPERATING LICENSE NO. NPF-35 DOCKET N0. 50-413 l
Replace the following pages of the Appendix "A" Technical Specifications with the enclosed pages. The revised pages are identified by Amendment number and contain vertical lines indicating the area of change.
The corresponding overleaf pages are also provided to maintain document completeness.
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Amended Overleaf Paae page l
3/4 6-36 3/4 6-35 l
B3/4 6-5 l
83/4 6-6 l
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CONTAINMENT SYSTEMS f
ICE BED TEMPERATURE MONITORING SYSTEM LIMITING CONDITION FOR OPERATION
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3.6.5.2 The Ice Bed Temperature Monitoring System shall be OPERABLE with at least two OPERABLE RTD channels in the ice bed at each of thr,ee basic elevations l
(< 11', 30'9" and 55' above the floor of the ice condenser) for each one-third of the ice condenser.
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APPLICABILITY: MODES 1, 2, 3, anu 4.
ACTION:
p a.
With the Ice Bed Temperature Monitoring System inoperable, POWER _
OPERATION may continue for up to 30 days provided:
1.
The ice compartment lower inlet doors, intermediate deck doors, and top deck doors are closed; 2.
'The last recorded mean ice bed temperature was less than or equal to 20*F and steady or decreasing ; and 3.
The ice condenser cooling sy' stem is OPERABLE with at least:
a)
Twenty-one OPERABLE air handling units, b)
Two OPERABLE glycol circulating pumps, and c)
Three OPERABLE refrigerant units.
4 Otherwise, be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />, b.
With the Ice Bed Temperature Monitoring System inoperable and with the Ice Condenser Cooling System not satisfying the minimum compo-nents OPERABILITY requirements of ACTION a.3 above, POWER OPERATION may continue for up to 6 days provided the ice compartment lower inlet doors, intermediate deck doors, and top deck doors are closed and the last recorded mean ice bed temperature was less than or equal i
to 15 F and steady; otherwise, 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 COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
SURVEILLANCE REQUIREMENTS i
4.6.5.2 The Ice Bed Temperature Monitoring System shall be determined OPERABLE
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by performance of a CHANNEL CHECK at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
4 CATAWBA - UNIT 1 3/4 6-35
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CONTAINMENT SYSTEMS ICE CONDENSER DOORS LIMITING CONDITION FOR OPERATION 3.6.5.3 The ice condenser inlet doors, intermediate deck doors, and top deck doors shall be closed and OPERABLE.
APPLICABILITY: MODES 1, 2, 3, and 4.
ACTION:
With one or more ice, condenser doors open or otherwise inoperable, a.
(but capable of opening automatically), POWER OPERATION may continue for up to 14 days provided the ice bed temperature is monitored at-least once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and the maximum ice bed temperature is main-tained less than or equal to 27 F; otherwise, restore the doors to their closed positions or OPERABLE status (as applicable) within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 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 COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
b.
With one or more ice condenser doors inoperable (not capable of open-ing automatically), restore all doors to OPERABLE status within I hour 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 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 /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
SURVEILLANCE REQUIREMENTS 4.6.5.3.1, Inlet Doors - Ice condenser inlet doors shall be:
Continuously monitored and determined closed by the Inlet Door a.
Position Monitoring System, and b.
Demonstrated OPERABLE during shutdown at least once per 3 months during the first year af ter the ice bed is initially fully-loaded and at least once per 6 months thereafter by:
i 1)
Verifying that the torque required to initially open each door is less than or equal to 675 inch pounds; 2)
Verifying that each door is capable of opening automatically and that it is not impaired by ice, frost, debris, or other obstruction; 3)
Testing a sample of at least 25% of the doors and verifying that the torque required to open each door is less than 195 i
inch pounds when the door is 40 degrees open.
This torque is defined as the " door opening torque" and is equal to the nominal door torque plus a frictional ~ torque component.
The doors selected for determination of the " door opening torque" shall be selected to ensure that all doors are tested at least once during four test intervals; CATAWBA - UNIT 1 3/4 6-36 Amendment No. 4
CONTAINMENT SYSTEMS BASES 3/4.6.5 ICE CONDENSER The requirements associated with each of the. components of the ice con-denser ensure that the overall system will be available to provide sufficient pressure suppression c1pability to limit the containment peak pressure tran-sient to less than 14.7 psig during LOCA conditions.
3/4.6.5.1 ICE BED The OPERABILITY of the ice bed ensures that the required ice inventory will:
(1) be distributed evenly through the containment bays, (2) contain sufficient boron to preclude dilution of the containment sump following the LOCA, and (3) contain sufficient heat removal capability to condense the Reactor Coolant System volume released during a LOCA.
These conditions are consistent with the assumptions used in the safety enalyses.
The minimum weight figure of 1218 pounds of ice per basket contains a 10%
conservative allowance for ice loss through sublimation which is a factor of 10 higher than assumed for the ice condenser design.
The minimum total weight of 2,268,652 pounds of ice also contains an additional 1% conservative allowance to account for systematic error in the weighing instruments.
In the event that observed sublimation rates are equal to or lower than design predictions after i
3 years of operation, the minimum ice baskets weight may be adjusted downward.
In addition, the number of ice baskets required to be weighed each 9 months may be reduced after 3 years of operation if such a reduction is supported by observed sublimation data.
I 3/4.6.5.2 ICE PED TEMPERATURE MONITORING SYSTEM
, The OPERABILITY of the Ice Bed Temperature Monitoring System ensures that the capability is available for monitoring the ice temperature.
In the event the system is inoperable, the ACTION requirements provide assurance that the ice bed heat removal capacity will be retained within the specified time limits.
3/4.6.5.3 ICE CONDENSER DOORS The OPERABILITY cf the ice condenser doors and the requirement that they be maintained closed ensures that the Reactor Coolant System fluid released during a LOCA will be diverted through the ice condenser bays for heat removal and that excessive sublimation of the ice bed will not occur because of warm air intrusion.
If an ice condenser door is not capable of opening automatically, then system function is seriously degraded and immediate action must be taken to restore the opening capability of the door.
Not capable of opening automati-cally is defined as those conditions in which a door is physically blocked from opening by installation of a blocking device or by obstruction from temporary or permanent installed equipment.
Impairment by ice, frost er debris is considered to render the doors inoperable but capable of opening automatically since these types of conditions will result only in a slightly greater torque necessary to cpen the doors or a slight delay in door opening.
CATAWBA - UNIT 1 8 3/4 6-5 Amendment No.
4
,o CONTAINMENT SYSTEMS BASES 3/4.6.5.4 INLET DOOR POSITION MONI'" RING SYSTEM The OPERAB{LITY of the Inlet Door Position Monitoring System ensures that the capability is available for monitoring the individual inlet door position.
In the event the systein is inoperable, the ACTION requirements provide assur-ance that the ice bed heat removal capacity will be retained within the spec-fied time limits.
3/4.6.5.5 DIVIDER BARRIER PERSONNEL ACCESS DOORS AND EQUIPMENT HATC The requirements for the divider barrier personnel access doors and equipment hatches being closed and OPERABLE ensure that a minimum bypass stsam flow will occur from the lower to the upper containment compartments during a LOCA.
This condition ensures a diversion of the steam through the ice condenser bays that is consistent with the LOCA analyses.
3/4.6.5.6 CONTAINMENT AIR RETURN AND HYDROGEN SKIMMER SYSTEMS-The OPERABILITY of the Containment Air Return and Hydrogen Skimmer Systems ensures that following a LOCA:
(1) the containment atmosphere is circulated for cooling by the spray system, and (2) the accumulation of hydrogen in localized portions of the containment structure is minimized.
3/4.6.5.7 and 3/4.6.5.8 FLOOR AND REFUELING CANAL DRAINS The OPERABILITY of the ice condenser floor and refueling canal drains ensures that following a LOCA, the water from the melted ice and Containment Spray System has access for drainage back to the containment lower compartment and subsequently to the sump.
This condition ensures the availability of the water for long-term cooling of the reactor during the post-accident phase.
3/4.6.5.9 DIVIDER BARRIER SEAL The requirement for the divider barrier seal to be OPERABLE ensures that a minimum bypass steam flow will occur from the lower to the upper containment compartments during a LOCA.
This condition ensures a diversion of steam through the ice condenser bays that is consistent with the LOCA analyses.
CATAWBA - UNIT 1 8 3/4 6-6 Amendment No. 4
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