ML17304A663
| ML17304A663 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 10/17/1988 |
| From: | Knighton G Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML17304A664 | List: |
| References | |
| NUDOCS 8810260462 | |
| Download: ML17304A663 (30) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 ARIZONA PUBLIC SERVICE COMPANY ET AL.
DOCKET NO.
STN 50-528 PALO VERDE NUCL'EAR GENERATING STATION UNIT NO. I AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.
37 License No.
NPF-41 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment, dated March 16,
- 1988, as supplemented by letter dated July 6, 1988, 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 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 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; D.
The issuance of this amendment will not be inimical to the cion defense and security or to the health and safety of the public; and 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 amended by a change to the Technical Specifications as indicated in the enclosure to this license amendment, and paragraph 2.C.(2) of Facility Operating License No.
NPF-41 is hereby amended to read as follows:
88i0260462 88i017 PDR ADOCI'5000528 PDC
'1)~'
1'
(2)
Technical S ecifications and Environmental Protection Plan The Technical Specifications contained in Appendix A, as revised through Amendment No.
37
, 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.
This license amendment is effective as of the date of issuance.
The changes in the Technical Specifications are to become effective within 30 days of issuance of the amendment.
In the period between issuance of amendment and the effective date of the new Technical Specifications, the licensees shall adhere to the Technical Specifications existing at the time.
The period of time during changeover shall be minimized.
FOR THE NUCLEAR REGULATORY COMMISSION
Enclosure:
Changes to the Technical Specifications Date of Issuance:
Octoher 17,'988 George W
Knighton irector Project irectora e
V Division of Reactor Projects - III, IV, V and Special Projects
ENCLOSURE TO LICENSE AMENDMENT AMENDMENT NO.
37 TO FACILITY OPERATING LICENSE NO. NPF-4I DOCKET NO.
STN 50-528 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.
Also to be replaced are the following overleaf pages to the amended pages.
Amendment Pa e
3/4 5-6 83/4 5-3 Overleaf Pa e
3/4 5-5 B3/4 5-4
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.
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 lOX margin is avail-able to permit 20 minutes of engineered safety features pump operation, and (2) the reactor will remain subcritical 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.
l.
2.
3.
The pressurizer pressure is at atmospheric pressure.
The miniflow bypass recirculation lines are aligned for injection.
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 1 B 3/4 5-3 AMENDMENT NO.
EMERGENCY CORE COOLING SYSTEMS BASES REFUELING MATER 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 volte and boron concentration of the RMT 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.
The limit on the RMT solution temperature ensures that the assumptions used in the LOCA analyses remain valid.
PALO VEROE - UNIT 1 B 3/4 5-4
EMERGENCY CORE COOL '" SYSTEMS SURVEILLANCE RE UIREMENTS Continued 2.
3.
e.
At 2.
3.
A visual inspection of the contairment 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.
Verifying that a miniawn total of 464 cubic feet of solid granular trisodium phosphate dodecahydrate (TSP) is contained within the TSP storage baskets.
Verifying that when a representative sample of 0.055 + 0.001 lb of TSP from a TSP storage basket is subeerged, without agitation,
.in 1.0 + 0.05 gallons of 77 + 9 4F borated water from the RWT, the pH of the wixed 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 />.
least once per 18 months, during shutdown, by:
Verifying that each automatic valve in the flow path actuates to its correct position on (SIAS and RAS) test signal(s).
Verifying that each of the following pumps start automatically upon receipt of a safety in)ection actuation test signal:
a.
High pressure safety infection pump.
b.
Low pressure safety injection punp.
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 and combined SI mini-flow valve close, and the LPSI puaps stop.
4.
Conducting an inspection of all ECCS piping outside of containment, which is in contact with recirculation suap inventory during LOCh conditions, and verifying that the total measured leakage from piping and components is less than 1 gpm when pressurized to at least 40 psig..
f.
By verifying that each of the following pumps develops the indicated differential pressure at or greater than their respective minimus allowable recirculation flow when tested pursuant to Specifica-tion 4.0.5:
1.
High pressure safety in/acti.on pump greater 4han or equal to 1761 psi d.
2.
Low pressure safety infection pump greater than or equal to 165 psid.
PALO VERDE - UNIT 1 3/4 5-5 QKCNENT NO.
27
EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE RE UIREMENTS Continued 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.
LPSI S stem a ve Number Hot Le In ection a ve Number 1.
SIB-UV 615, SIA-UV 306 1.
SIC-HV 321 2.
SIB-UV 625, SIB-UV 307 2.
SID-HV 331 3.
SIA-UV 635 4.
SIA-UV 645 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 S stem - Sin le Pum The sum of the injection line flow rates, excluding the highest flow rate, is greater than or equal to 816 gpm.
LPSI S stem - Sin le Pum 2.
3.
4, Simul Injection Loop 1, total flow equal to 4800 + 200 gpm Injection Legs 1A and 1B when tested individually, with the other leg isolated, shall be within 200 gpm of each other.
Injection Loop 2, total flow equal to 4800 + 200 gpm Injection Legs 2A and 2B when tested individually, with the other leg isolated, shall be within 200 gpm of each other.
taneous Hot Le and Cold Le In ection - Sin le Pum 2.
Hot Leg, flow equal to 545 2 20 gpm Cold Leg, flow equal to 545 k 20 gpm PALO VERDE - UNIT 1 3/4 5"6 AMENDMENT NO. 37
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON. D. C. 20555 ARIZONA PUBLIC SERVICE COMPANY ET AL.
DOCKET NO.
STN 50-529 PALO VERDE NUCLEAR GENERATING STATION UNIT NO.
2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.
24 License No.
NPF-51 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment, dated March 16, 1988, as supplemented by letter dated July 6, 1988, 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 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 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 wil'L be conducted in compliance with the Commission's regulations; D.
E.
The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and 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 amended by a change to the Technical Specifications as indicated in the enclosure to this license amendment, and par agraph 2.C.(2) of Facility Operating License No.
NPF-51 is hereby amended to read as follows:
I( ~
- ~ j (2)
Technical S ecifications and Environmental Protection Plan The Technical Specifications contained in Appendix A, as revised through Amendment No.
24
, 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 amendment is effective as of the date of issuance.
The changes in the Technical Specifications are to become effective within 30 days of issuance of the amendment.
In the period between issuance of amendment and the effective date of the new Technical Specifications, the licensees shall adhere to the Technical Specifications existing at the time.. The period of time during changeover shall be minimized.
FOR THE NUCLEAR REGULATORY COMMISSION P
George W
- Knighton, ector project irectorate Division of Reactor Projects - III, IV, V and Special Projects
Enclosure:
Changes to the Technical Specifications Date of Issuance:
October 17, ZR88
I
ENCLOSURE TO LICENSE AMENDMENT AMENDMENT NO.
24 TO FACILITY OPERATING LICENSE NO.
NPF-51 DOCKET HO.
STN 50-529 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.
Also to be replaced are the following overleaf pages to the amended pages.
Amendment Pa e
3/4 5-6 83/4 5-3 Overleaf Pa e
3/4 5-5 83/4 5-4
t
~
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
'onfiguration, (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.
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'he 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 vhe ECCS in the event of a LOCA.
The limits on RWT minimum volume ana boron concentration ensure that (1) sufficient water plus 10K margin is avail-able to permit 20 minutes of engineered safety features pump operation, and (2) the reactor will remain subcritical 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.
2.
3.
The pressurizer pressure is at atmospheric pressure.
The miniflow bypass recirculation lines are aligned for injection.
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 2 B 3/4 5-3 AMENDMENT NO.
24
EMERGENCY CORE COOLING SYSTEMS BASES REFUELING MATER 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 /AT 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 minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components.
The limit on the RMT solution temperature ensures that the assumptions used in the LOCA analyses remain valid.
PALO VEROE - UNIT 2 8 3/4 5-4
EMER'GENCY CORE COOLING SYSTEMS SURVEILLANCE RE UIREMENTS Continued 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.
3.
e.
At 2.'.
4.
Verifying that a minimum total of 464 cubic feet of solid granular trisodium phosphate dodecahydrate (TSP) is contained within the TSP storage baskets.
Verifying that when a representative sample of 0.055 a 0.001 lb of TSP from a TSP storage basket is submerged, without agitation, in 1.0 t 0.05 gallons of 77 t 9 F borated water from the RWT, 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 />.
least once per 18 months, during shutdown, by:
Verifying that each automatic valve in the flow path actuates to its correct position on (SIAS and RAS) test signal(s).
Verifying that each of the following pumps start automatically upon receipt of a safety injection actuation test signal:
a.
High pressure safety injection pump.
b.
Low pressure safety injection pump.
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 and combined SI mini-flow valve close, and the LPSI pumps stop.
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 leakage from piping and components is less than 1 gpm when pressurized to at least 40 psig.
f.'y 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:
2.
High pressure safety injection pump greater than or equal to 1761 psid.
Low pressure safety injection pump greater than or equal to 165 psid.
PALO VERDE - UNIT 2 3/4 5"5
EMERGENCY CORE COOLING SYSTEMS SU~V~ILLANCE RE UIREMENTS (Continued 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.
LPSI S stem a ve Num er Hot Le In ection a ve um er 1.
SIB-UV 615, SIA-UV 306 1.
SIC-HV 321 2.
SIB-UV 625, SIB-UV 307 2.
SID-HV 331 3.
SIA-UV 635 4.
SIA-UV 645 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 S stem - Sin le Pum The sum of the injection line flow rates, excluding the highest flow rate, is greater than or equal to 816 gpm.
LPSI S stem - Sin le Pum 2.
3.
Simul 2.
Injection Loop. 1, total flow equal to 4800 + 200 gpm In'jection Legs lA and 1B when tested individually, with the other leg isolated, shall be within 200 gpm of each other.
Injection Loop 2, total flow equal to 4800 f 200 gpm Injection Legs 2A and 2B when tested individually, with the other leg isolated, shall be within 200 gpm of each other.
taneous Hot Le and Cold Le In ection - Sin le Pum Hot Leg, flow equal to 545 a 20 gpm Cold Leg, flow equal to 545 t 20 gpm PALO VERDE - UNIT 2 3/4 5-6 AMENDMENT NO. 24
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UNITED STATES, NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 ARIZONA PUBLIC SERVICE COMPANY ET AL.
DOCKET NO.
STN 50-53O PALO VERDE NUCLEAR GENERATING STATION UNIT NO.
3 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 13 License No. NPF-74 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment, dated March 16, 1988, as supplemented by letter dated July 6, 1988, 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 Department of Mater 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 the Act, and the regulations of the Comission; C.
D.
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; The issuance of this amendment will not be inimical to the coIImIon defense and security or to the health and safety of the public; and E.
The issuance of this amendment is in accor'dance with 10 CFR Part 51 of the Commission's regulations and all'applicable requirements have been satisfied.
2.
Accordingly, the license is amended by a change 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:
(2)
Technical S ecifications and Environmental Protection Plan The Technical Specifications contained in Appendix A, as revised through Amendment No.
13
, 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 amendment is effective as of the date of issuance.
The changes in the Technical Specifications are to become effective within 30 days of issuance of the amendment.
In the period between issuance of amendment and the effective date of the new Technical Specifications, the licensees shall adhere to the Technical Specifications existing at the time.
The period of time during changeover shall be minimized.
FOR THE NUCLEAR REGULATORY COMMISSION
Enclosure:
Changes to the Technical Specifications Oate of Issuance:
October 17, 1B George
. Knighton irector Projec Directora V
Division of Reactor Projects - III, IV, V and Special Projects
ENCLOSURE TO LICENSE AMENDMENT AMENDMENT NO.
13 TO FACILITY OPERATING LICENSE NO.
NPF-74 DOCKET NO.
STN 50-530 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.
Also to be replaced are the following overleaf pages to the amended pages.
Amendment Pa e
3/4 5-6 83/4 5-3 Overleaf Paae 3/4 5-5 83/4 5-4
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.
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 10X margin is avail-able to permit 20 minutes of engineered safety features pump operation, and (2) the reactor will remain subcritical 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.
l.
2.
3.
The pressurizer pressure is at atmospheric pressure.
The miniflow bypass recirculation lines are aligned for injection.
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. I~
EMERGENCY CORE COOLING SYSTEMS BASES 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.
The limit on the RWT solution temperature ensures that the assumptions used in the LOCA analyses remain valid.
PHILO VERDE UNIT 3 B 3/4 5-4
EMERGENCY CORE COOLING SYSTEHS SURVEILLANCE RE UIREHENTS Continued
'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.
3.
e.
At 1.
2.
3.
4.
Verifying that a minimum total of 464 cubic feet of solid granular trisodium phosphate dodecahydrate (TSP) is contained within the TSP storage baskets.
Verifying that when a representative sample of 0.055 2 0.001 lb of TSP from a TSP storage basket is submerged, without agitation, in 1.0 i 0.05 gallons of 77 a 9 4F borated water from the RWT, 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 />.
least once per 18 months, during shutdown, by:
Verifying that each automatic valve in the flow path actuates to its correct position on (SIAS and RAS) test signal(s).
Verifying that each of the following pumps start automatically upon receipt of a safety injection actuation test signal:
a.
High pressure safety injection pump.
b.
Low pressure safety injection pump.
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 and combined SI 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 during LOCA conditions, and verifying that the total measured leakage from piping and components is less than 1 gpm when pressurized to at least 40 psig.
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:
High pressure safety injection pump greate~
than or equal to 1761 psid.
Low pressure safety injection pump greater than or equal to 165 psid.
PALO VERDE - UNIT 3 3/4 5"5
EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE RE UIREMENTS Continued
. 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.
LPSI S stem a ve um er Hot Le In ection a ve um er h.
1.
SIB-UV 615, SIA-UV 306 1.
SIC-HV 321 2.
SIB-UV 625, SIB-UV 307 2.
SID-HV 331 3.
SIA-UV 635 4.
SIA-UV 645 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 S stem - Sin le Pum The sum of the injection line flow rates, excluding the highest flow rate, is greater than or equal to 816 gpm.
LPSI S stem - Sin le Pum 2.
3.
4.
Simul Injection Loop 1, total flow equal to 4800 + 200 gpm Injection Legs 1A and 1B when tested individually, with the other leg isolated, shall be within 200 gpm of each other.
Injection Loop 2, total flow equal to 4800 f 200 gpm Injection Legs 2A and 2B when tested individually, with the other leg isolated, shall be within 200 gpm of each other.
taneous Hot Le and Cold Le In'ection - Sin le Pum 2.
Hot Leg, flow equal to 545 t 20 gpm Cold Leg, flow equal to 545 i 20 gpm PALO VERDE - UNIT 3 3/4 5-6 AMENDMENT NO. 13