ML19353B181
| ML19353B181 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 12/04/1989 |
| From: | Knighton G Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19353B182 | List: |
| References | |
| NUDOCS 8912120115 | |
| Download: ML19353B181 (14) | |
Text
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UMTED STATES NUCLEAR REGULATORY COMMISSION e
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WASHINGTON. D. C. 20666 l
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ARIZONA PUBLIC SERVICE. COMPANY. ET AL, DOCKET NO. STN 50-529 PALO VERDE NUCLEAR GENERATING. STATION.. UNIT NO. 2 AMENDMENT TO. FACILITY.0PERATING LICENSE Amendment No. 29 License No. NPF-51 1.
The Nuclear Regulatory Comission (the Comission) has found that:
A.
The application for amendment, dated October 25, 1989 by the Arizona Public Service Company (APS) on behalf of itself and the Salt River Project Agricultural 1:aprovement and Power District, El Paso Electric Company, Southern Californie Edison Company, Public Service Company of New Mexico. Los Angeles Department of Water and Power, and Southern California Public Power Authority (licensees), complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Comission's regulations set forth in 10 CFR Part I; B.
The facility will operate in conformity with the application, the i
provisions of Act, and the regulations of the Comission; 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 Comission's regulations; D.
The issuance of this amendment will not be inimical to the comon 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 Comission's regulations and all applicable requirements have been satisfied.
2.
Accordingly, the license is amended by changes to the Technical Specifications as indicated in the enclosure to this license amendment, and paragraph 2.C(2) of Facility Operating License No. NPF-51 is hereby amended to read as follows:
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2 (2) Technical Specifications and Environmental Protection Plan The Technical Specifications contained in Appendix A, as revised 1
through Amendment No. 29 and the Environmental Protection Plan contained in Appendix B, are hereby incorporated into this license.
APS shall operate the facility in accordance with the Technical
)
Specifications and the Environmental Protection Plan.
3.
This license amendnent is effective as of October 26, 1989.
FOR THE NUCLEAR REGULATORY COMMISSION Georg
. Knighto irector Project Directorate Y Division of Reactor Projects III.
IV, Y and Special Projects Office of Nuclear Reactor Regulation
Enclosure:
Changes to the Technical Specifications Date of Issuance: December 4, 1989 a
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ENCLOSURE TO LICENSE AMENDMENT AMENDMENT NO. 29 TO FACILITY OPERATING LICENSE NO. NPF-51 DOCKET.NO. STN 50-529 Replace the following sages of the Appendix A Technical Specifications with the enclosed pages. T1e revised pages are identified by Amendnent number and contain vertical lines indicating the areas of change.
j Remove Pages insert Pages 3/4 5-6 3/4 5-6 B 3/4 5-3 B 3/4 5-3 l
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EMERGENCY CORE COOLING SYSTEMS I
i SURVEILLANCE REQUIREMENTS (Continued) l g.
By verifying the correct position of each electrical and/or mechanical position stop for the following ECCS throttle valves:
1.
Within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> following completion of each valve stroking operation or maintenance on the valve when the ECCS subsystems are required to be OPERABLE.
2.
At least once per 18 months.
i LPSI System Hot le2 Injection Valve Number Valve Number 1.
SIB-UV 615, SIA-HV 306 1.
SIC-HV 321 2.
SIB-UV 625, SIB-HV 307 2.
SID-HV 331 3.
SIA-UV 635 4.
SIA-UV 645 h.
By performing a flow balance test, during shutdown, following l
completion of modifications to the ECCS subsystems that alter the i
subsystem flow characteristics and verifying the following flow rates:
HPSI System - Single Pump The sum of the injection line flow rates, excluding the highest flow rate, is greater than or equal to 816 gpm.
LPSI System - Single Pump 1.
Injection Loop 1, total flow equal to 4800 + 200 gpm l
2.
Injection Legs IA and IB when tested individually, with 1
the other leg isolated, shall be within 200 gpm of each l
other.
l 3.
Injection Loop 2, total flow equal to 4800 1 200 gpm 4.
Injection Legs 2A and 2B when tested individually, with the j
other leg isolated, shall be within 200 gpm of each other.
I Simultaneous Hot Leo and Cold Leo Injection - Single Pump 1.
The hot leg flowrate is greater than or equal to 525 gpm; 2.
The sum of the cold leg flowrates is greater than or equal to 525 gpm; and 3.
The total pump flowrate does not exceed 1200 gpm.
PALO VERDE - UNIT 2 3/4 5-6 AMENDMENT NO. 29
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EMERGENCY CORE COOLING SYSTENS i
SURVEILLANCE Rf0UIREMENTS (Continued) i 1.
A visual inspection of the containment sump and verifying that the subsystem suction inlets are not restricted by debris and that the sump components (trash racks, screens, etc.') show no evidence of structural distress or corrosion.
2.
Verifying that a minimum total of 464 cubic feet of solid granular trisodium phosphate dodecahydrate (TSP) is contained within the TSP storage baskets.
3.
Verifying that when a representative sample of 0.055 t 0.001 lb of TSP from a TSP storage basket is submerged, without agitation, in 1.0 t 0.05 gallons of 77 1 9 'F borated water from the RWT, the pH of the mixed solution is raised 'to greater than or i
equal to 7 within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
At least once per 18 months, during shutdown, by:
e.
1.
Verifying'that each automatic valve in the flow path actuates to its correct position on ($1AS and RAS) test signal (s).
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2.
Verifying that each of the following pumps start automatically upon receipt of a safety injection actuation test signal:
t a.
Highpressuresafetyinjectionpump, b.
Low pressure safety injection pump.
3.
Verifying that on a recirculation actuation test signal, the containment sump isolation valves open, the HPSI, LPSI and CS pump minimum bypass recirculation flow line isolation valves l
and combined SI mini-flow valve close, and the LPSI pumps stop.
f l
4.
Conducting an inspection of all ECCS piping outside of contain-ment, which is in contact with recirculation sump inventory during LOCA conditions, and verifying that the total measured l
1eakage from piping and components is less than 1 gpa when i
pressurized to at least 40 psig, f.
By verifying that each of the following pumps develops the indicated i
differential pressure at or greater than their respective minimum l
allowable recirculation flow when tested pursuant to Specifica-l tion 4.0.5:
1.
High pressure safety injection pump greater than or equal to 1761 psid.
2.
Low pressure safety injection pump greater than or equal to 165 psid.
l l
PALO VERDE - UNIT 2 3/4 5-5
L EMERGENCY CORE COOLING SYSTEMS BASES ECCS SUBSYSTEMS (Continued) assurance that proper ECCS flows will be maintained in the event of a LOCA.*
Maintenance of proper flow resistance and pressure drop in the piping system to each injection point is necessary to:
(1) prevent total pump flow from exceeding runout conditions when the system is in its minimum resistance configuration, (2) provide the proper flow split between injection points in accordance with the assumptions used in the ECCS-LOCA analyses, and (3) pro--
vide an acceptable level of total ECCS flow to all injection points equal to or above that assumed in the ECCS-LOCA analyses.
In specification 4.5.2.h, the specified flows include instrumentation uncertainties.
The requirement to dissolve a representative sample of TSP in a sample of RWT water provides l
assurance that the stored TSP will dissolve in borated water at the postulated post-LOCA temperatures.
The term " minimum bypass recirculation flow," as used in Specification 4.5.2e.3.
and 4.5.2f., refers to that flow directed back to the RWT from the ECCS pumps for pump protection.
Testing of the ECCS pumps under the condition of minimum bypass recirculation flow in Specification 4.5.2f. verifies that the perfor-mance of the ECCS pumps supports the safety analysis minimum RCS pressure assumption at zero delivery to the RCS.
3/4.5.4 REFUELING WATER TANK The OPERABILITY of the refueling water tank (RW) as part of the ECCS ensures that a sufficient supply of borated water is available for injection by the ECCS in the event of a LOCA.
The limits on RW minimum volume and boron concentration ensure that (1) sufficient water plus 10% margin is avail-able to permit 20 minutes of engineered safety features pump operation, and (2) the reactor will remain suberitical in the cold condition following mixing of the RWT and the RCS water volumes with all control rods inserted except for the most reactive control assembly.
These assumptions are consistent with the LOCA analyses.
- The following test conditions, which apply during flow balance tests, ensure that the ECCS subsystems are adequately tested.
1.
The pressurizer pressure is at atmospheric pressure.
2.
The miniflow bypass recirculation lines are aligned for injection.
3.
For LPSI system (add / subtract) 6.4 gpm (to/from) the 4800 gpm requirement for every foot by which the difference of RWT water level above the RWT RAS setpoint level (exceeds /is less than) the difference of RCS water level above the cold leg centerline.
t PALO VERDE - UNIT 2 B 3/4 5-3 AMENDMENT NO.
29
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EMERGENCY CORE COOLING SYSTEMS BASES REFUELING WATER TANK (Continued) i The contained water volume limit includes an allowance for water not usable because of tank discharge line location or other physical t
characteristics.
The limits on contained water volume and boron concentration of the M also ensure a pH value of between 7.0 and 8.5 for the solution recirculated within containment after a LOCA.
This pH band minimizes the evolution of iodine and einimizes the effect of chloride and caustic stress corrosion on sechanical systems and components.
The Itait on the M solution temperature ensures that the assumptions used in the LOCA analyses remain valid.
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PALO VERDE - UNIT 2 8 3/4 5-4
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ARIZONA PUBLIC SERVICE COMPANY. ET AL.
DOCKET NO. STN 50-530 PALO VERDE NUCLEAR GENERATING STATION. UNIT NO. 3 AMENDMENT TO FACILITY OPERATING-LICENSE Amendment No. 19 License No. NPF-74 1.
The Nuclear Regulatory Comission (the Comission) has found that:
A.
The application for amendment, dated October 25, 1989 by the Arizona Public Service Company (APS) on behalf of itself and the Salt River Project Agricultural Improvement and Power District, El Paso Electric Company, Southern California Edison Company, Public Service Company of New Mexico. Los Angeles l
Department of Water and Power, and Southern California Public Power Authority (licensees), complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Commission's regulations set forth in 10 CFR Chapter I; B.
The facility will operate in conformity with the application, the provisions of Act, and the regulations of the Commission; C.
There is reasonable assurance (1) 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 Comission's regulations; D.
The issuance of this amendment will not be inimical to the comon 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 Comission's regulations and all applicable requirements have been satisfied.
2.
Accordingly, the license is amended by changes to the Technical Specifications as indicated in the enclosure to this license amendment, and paragraph 2.C(2) of Facility Operating License No. NPF-74 is hereby amended to read as follows:
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.. (2) Technical Specifications and Environmental Protection Plan The Technical Specifications contained in Appendix A, as revised through Amendment No.19, and the Environmental Protection Plan contained in Appendix B, are hereby incorporated into this license.
APS shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.
3.
This license amendrent is effective as of October 26, 1989.
FOR THE NUCLEAR REGULATORY COMMISSION George. Knighton, ector Project Directorate V Division of Reactor Projects Ill, IV, Y and Special Projects Office of Nuclear Reactor Regulation
Enclosure:
Changes to the Technical Specifications l
Date of Issuance: December 4, 1989 l
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ENCLOSURE TO LICENSE AMENDMENT i
AMENDMENT NO. 19 TO FACILITY OPERATING LICENSE NO. NPF-74 DOCKET NO. STN 50-530 i
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 areas of change.
Remove Pages Insert Pages
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3/4 5-6 3/4 5-6 B 3/4 5-3 8 3/4 5-3
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l EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) g.
By verifying the correct position of each electrical and/or mechanical position stop for the following ECCS throttle valves:
J 1.
Within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> following completion of each valve stroking operation or maintenance on the valve when the ECCS subsystems
^
are required to be OPERABLE.
2.
At least once per 18 months.
LPSI System Hot Les In.iection Valve Number Valve Number i
i 1.
SIB-UV 615, SIA-HV 306 1.
SIC-HV 321 2.
SIB-UV 625, SIB-HV 307 2.
SID-HV 331 3.
SIA-UV 635 l
4.
SIA-UV 645 l
l 1
h.
By performing a flow balance test, during shutdown, following completion of modifications to the ECCS subsystems that alter the subsystem flow characteristics and verifying the following flow rates:
HPSI System - Single Pump The sum of the injection line flow rates, excluding the highest flow rate, is greater than or equal to 816 gpm.
LPSI System - Single Pump 1.
Injection Loop 1, total flow equal to 4800,+ 200 gpm 2.
Injection Legs 1A and IB when tested individually, with the other leg isolated, shall be within 200 gpm of each other.
1 3.
Injection Loop 2, total flow equal to 4800 t 200 gpm 4.
Injection Legs 2A and 28 when tested individually, with the I
other leg isolated, shall be within 200 gpm of each other.
Simultaneous Hot Lea and Cold Leo Injection - Single Pump 1.
The het leg flowrate is greater than or equal to 525 gpm; 2.
The sum of the cold leg flowrates is greater than or equal to 525 gpm; and 3.
The total pump flowrate does not e.tceed 1200 gpm.
PALO VERDE - UNIT 3 3/4 5-6 AMENDMENT NO. 19
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EMERGENCY CORE C00 LING SYSTEMS SURVElli.ANCE REQUIREMENTS (Continued) 1.
A visual inspection of the containment sump and verifying that the subsystem suction inlets are not restricted by debris and i
that the sump components (trash racks, screens evidence of structural distress or corrosion., etc.) show no 2.
Verifying that a minimum total of 464 cubic feet of solid granular trisodium phosphate dodecahydrate (TSP) is contained within the TSP storage baskets.
3.
Verifying that when a representative sample of 0.055 t 0.001 lb of TSP free a T5P storage basket is submerged, without agitation, i
in 1.0 t 0.05 gallons of 77 1 9 'F borated water from the WT, the pH of the mixed solution is raised to greater than or equal to 7 within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, At least once per 18 months, during shutdown, by:
e.
1.
Verifying that each automatic valve in the flow path actuates to its correct position on (51A5 and RAS) test signal (s).
2.
Verifying that each of the following pumps start automatically upon receipt of a safety injection actuation test signal:
l High pressure safety injection pump, a.
i b.
Lowpressuresafetyinjectionpump.
3.
Verifying that on a recirculation actuation test signal, the containment sump isolation valves open, the HPSI, L)SI and CS pump minimum bypass recirculation flow line isolation valves and combined 51 mini-flow valve close, and the LPSI, pumps stop.
4.
Conducting an inspection of all ECCS piping outside of contain-ment, which is in contact with recirculation sump inventory i
i during LOCA conditions, and verifying that the total measured leakage free piping and components is less than 1 gpa when i
pressurized to at least 40 psi.
O f.
By verifying that each of the following pumps develops the indicated differential pressure at or greater than their respective minimum allowable recirculation flow when tested pursuant to Specifica-tion 4.0.5:
1.
High pressure safety injection pump greater than or equal to
+
1761 psid.
2.
Low pressure safety injection pump greater than or equal to 165 psid.
PALO VERDE - UNIT 3 3/4 5-5
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1 EMERGENCY CORE COOLING SYSTEMS BASES j
ECCS SUBSYSTEMS (Continued) assurance that proper ECCS flows will be maintained in the event of a LOCA.*
Maintenance of proper flow resistance and pressure drop in the piping system to each injection point is necessary to:
(1) prevent total pump flow from exceeding runout conditions when the system is in its minimum resistance configuration, (2) provide the proper flow split between injection points in accordance with the assumptions used in the ECCS-LOCA analyses, and (3) pro-vide an acceptable level of total ECCS flow to all injection points equal to or above that assumed in the ECCS-LOCA analyses.
In specification 4.5.2.h, the specified flows include instrumentation uncertainties.
The requirement to dissolve a representative sample of TSP in a sample of RWT water provides assurance that the stored TSP will dissolve in borated water at the postulated post LOCA temperatures.
The term " minimum bypass recirculation flow," as used in Specification 4.5.2e.3.
and 4.5.2f., refers to that flow directed back to the RWT from the ECCS pumps for pump protection.
Testing of the ECCS pumps under the condition of minimum bypass recirculation flow in Specification 4.5.2f. verifies that the perfor-mance of the ECCS pumps supports the safety analysis minimum RCS pressure assumption at Zero delivery to the RCS.
3/4.5.4 REFUELING WATER TANK The OPERABILITY of the refueling water tank (RWT) as part of the ECCS ensures that a sufficient supply of borated water is available for injection by the ECCS in the event of a LOCA.
The limits on RWT minimum volume and boron concentration ensure that (1) sufficient water plus 10% margin is avail-able to permit 20 minutes of engineered safety features pump operation, and (2) the reactor will remain suberitical in the cold condition following mixing of the RWT and the RCS water volumes with all control rods inserted except for the most reactive control assembly.
These assumptions are consistent with the LOCA analyses.
- The following test conditions, which apply during flow balance tests, ensure that the ECCS subsystems are adequately tested.
1.
The pressurizer pressure is at atmospheric pressure.
2.
The miniflow bypass recirculation lines are aligned for injection.
3.
For LPSI system, (add / subtract) 6.4 gpm (to/from) the 4800 gpm requirement for every foot by which the difference of RWT water level above the RWT RAS setpoint level (exceeds /is less than) the difference of RCS water level above the cold leg centerline.
PALO VERDE - UNIT 3 B 3/4 5-3 AMENDMENT NO. 19
EMERGENCY CORE COOLING SYSTEMS BASES l
REFUELING WATER TANK (Continued)
The contained water volume limit includes an allowance for water not usable because of tank discharge line location or other physical characteristics.
The limits on contained water volume and boron concentration of the RWT also ensure a pH value of between 7.0 and 8.5 for the solution recir-culated within containment after a LOCA.
This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components.
c The limit on the RWT solution temperature ensures that the assumptions used in the LOCA analyses remain valid, l
l I-l PriLO VERDE - UNIT 3 8 3/4 5-4 ic
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