ML20084F638
| ML20084F638 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 05/17/1995 |
| From: | Fields M NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML20084F640 | List: |
| References | |
| NUDOCS 9506020277 | |
| Download: ML20084F638 (23) | |
Text
_- -_-_
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l pt944g4 UNITED STATES y
NUCLEAR REGULATORY COMMISSION
'f WASHINGTON, D.C. 2006H001
\\*..+/
SOUTHERN CALIFORNIA EDISON COMPANY SAN DIEGO GAS AND ELECTRIC COMPANY THE CITY OF RIVERSIDE. CALIF 0Bl[la THE CITY OF ANAHEIM. CALIFORNIA DOCKET NO. 50-361 SAN ON0FRE NUCLEAR GENERATING STATION. UNIT NO. 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.119 1.icense No. NPF-10 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment by Southern California Edison Company, et al. (SCE or the licensee) dated November 3,1993, 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 rules and 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 Commission's regulations; D.
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 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.
9506020277 950517 ADOCK0500g1 DR p
e
. 2.
Accordingly, the license is amended by changes to the Technical Speci-fications as indicated in the attachment to this license amendment, and paragraph 2.C(2) of Facility Operating License No. NPF-10 is hereby amended to read as follows:
(2)
Technical Soecifications The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Amendment No.
119, are hereby incorporated in the license.
Southern California Edison Company 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 its issuance and to be implemented 30 days from the date of issuance.
FOR THE NUCLEAR REGULATORY COMMISSION
-f
'^k
/
Mel B. Fields, Project Manager Project Directorate IV-2 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance:
May 17, 1995
'l
ATTACHMENT TO LICENSE AMENDMENT AMENDMENT NO. 119TO FACILITY OPERATING LICENSE NO. NPF-10 DOCKET NO. 50-361 Revise Appendix A Technical Specifications by removing the pages identified below and inserting the enclosed pages. The revised pages are identified by Amendment number and contain marginal lines indicating the areas of change.
The corresponding overleaf pages are also provided to maintain document completeness.
REMOVE INSERT 3/4 6-18 3/4 6-18 3/4 6-19 3/4 6-19 3/4 6-22 3/4 6-22 3/4 6-23 3/4 6-23 i
3/4 6-23a 3/4 6-23b B 3/4 6-5 8 3/4 6-5
i CONTAINMENT SYSTEMS CONTAINMENT COOLING SYSTEM l
LIMITING CONDITION FOR OPERATION 3.6.2.3 Two independent groups of containment cooling fans shall be OPERABLE with two fan systems to each group.
APPLICABILITY:
MODES 1, 2, 3 and 4.
ACTION:
With one group of the above required containment cooling fans a.
inoperable and both containment spray systems OPERABLE, restore the inoperable group of cooling fans to OPERABLE status within 7 days 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 two groups of the above required containment cooling fans inoperable, and both containment spray systems OPERABLE, restore at j
least one group of cooling fans to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-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 SHUTOOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
Restore both above required groups of cooling fans to OPERABLE status within 7 days of initial loss 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 />.
i With one group of the above required containment cooling fans c.
inoperable and one containment spray system inoperable, restore the inoperable spray system to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-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 />.
Restore the inoperable group of containment cooling fans to OPERABLE status within 7 days of initial loss 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 SHUTOOWN 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 4.6.2.3 Each group of containment cooling fans shall be demonstrated OPERABLE:
a.
At least once per 31 days by:
1.
Starting each fan group from the control room and verifying that each fan group operates for at least 15 minutes.
2.
Verifying a cooling water flow rate of greater than or equal to 2000 gpm to each cooler.
b.
At least once per refueling interval by verifying that each fan group starts automatically on a Containment Cooling Actuation test signal.
SAN ONOFRE-UNIT 2 3/4 6-17 AMENDMENT NO. 73
CONTAINMENT SYSTEMS 3/4.6.3 CONTAINNENT ISOLATION VALVES l
LIMITING CONDITION FOR OPERATION 3.6.3 The contali. ment isolation valves specified in Table 3.6-1 shall be OPERABLE with isolation times as shown in Table 3.6-1.
APPLICABILITY: MODES 1, 2, 3 and 4.
ACTION:
1.
With one or more of the isolation valve (s) specified in Section A, B, C, and E of Table 3.6-1 inoperable, maintain at least one isolation valve OPERABLE in each affected penetration
- that is open and either:
a.
Restore the inoperable valve (s) to OPERABLE status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, or b.
Isolate each affected penetration within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> by use of at least one automatic valve secured ** in the isolation position, or one closed manual valve or blind flange, or c.
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 />.
l 2.
With one or more of the valves specified in Section D1 of Table 3.6-1 inoperable, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> secure the inoperable valve (s) in its ESFAS actuated position, and restore the inoperable valve (s) to OPERABLE status during the next cold shutdown or 30 days, whichever is shorter; 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 />.
3.
With one or more of the valves specified in Section D2 of Table 3.6-1 inoperable, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> secure the ' inoperable valve (s) in its ESFAS actuated position, and restore the inoperable valve (s) to OPERABLE status during the next cold shutdown; 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 />.
4.
The provisions of Specification 3.0.4 are not applicable.
l Any flow path from the atmosphere or a piping system inside of containment to the atmosphere or a piping system outside of containment.
Each flow path is considered as a separate " penetration".
- Locked, sealed or otherwise prevented from unintentional operation.
SAN ON0FRE - UNIT 2 3/4 6-18 Amendment No. 46,119
CONTAINMENT SYSTEMS SURVEILLANCE RE0VIREMENTS l
4.6.3.1 The isolation valves specified in Section A, B, and E of Table 3.6-1 I
shall be demonstrated OPERABLE prior to returning the valve to service after maintenance, repair or replacement work is performed on the valve or its associated actuator, control or power circuit by performance of testing pursuant to Specification 4.0.5.
Valves secured ** in their isolated position 1
are considered OPERABLE pursuant to this specification.
4.6.3.2 Each isolation valve (except check valves) specified in Section A, B, l
and E of Table 3.6-1 shall be demonstrated OPERABLE during the COLD SHUTDOWN I
or REFUELING MODE at least once per refueling interval by verifying that on an ESFAS test signal, each isolation valve actuates to its isolation position.
4.6.3.3 The isolation time of each power operated or automatic valve (except check valves) in Section A and B of Table 3.6-1 shall be determined to be within its limit when tested pursuant to Specification 4.0.5.
4.6.3.4 The manual isolation valves specified in Section C of Table 3.6-1 shall be demonstrated OPERABLE in accordance with Specifications 4.6.1.1.a and 4.6.1.2.d.
4.6.3.5 The isolation valves specified in Section D1 and D2 of Table 3.6-1 l
shall be demonstrated OPERABLE as required by Specification 4.0.5 and surveillance requirements associated with those Limiting Conditions for Operation pertaining to each valve or system in which it is installed.
Specification 4.0.5 is not applicable when the valves are secured open.
i Locked, sealed or otherwise prevented from unintentional operation.
SAN ON0FRE - UNIT 2 3/4 6-19 Amendment No. 46r73,119
TABLE 3.6-1 CONTAINMENT ISOLATION VALVES (Continued)
MAXIMUM PENETRATION ISOLATION NUMBER VALVE NUMBER FUNCTION TIME (SEC)
A.
AUTOMATIC CONTAINMENT ISOLATION (Cont.)
43 HV-6216 Component cooling water outlet 40 45 HV-9900 Containment normal A/C chilled water inlet 40 45 HV-9920 Containment normal A/C chilled water inlet 40 46 HV-9971 Containment normal A/C chilled water outlet 40 46 HV-9921 Containment normal A/C chilled water outlet 40 47 HV-7258 Containment waste gas vent header 40 47 HV-7259 Containment waste gas vent header 40 68 2"-129-A-554 Charging line to auxiliary spray check valve NA l-77 HV-5434 Nitrogen supply to safety ~ injection tanks 40 77 2"-108-C-627 Nitrogen supply to safety injection tanks check valve NA B.
CONTAINMENT PURGE (CPIS) 18 HV-9949**
Containment purge inlet (normal) 12 18 HV-9948**
Containment purge inlet (normal) 12 18 HV-9821 Containment mini purge inlet 5
18 HV-9823 Containment mini purge inlet 5
19 HV-9950**
Containment purge outlet (normal) 12 19 HV-9951**
Containment purge outlet (normal) 12 19 HV-9824 Containment mini purge outlet 5
19 HV-9825 Containment mini purge outlet 5
C.
MANUAL
- 6 2"-099-C-334 Safety injection drain to RWST NA 9
HV-9337#@
Shutdown cooling to LPSI pumps NA 9
HV-9377#@
Shutdown cooling to LPSI pumps NA 9
HV-9336#@
Shutdown cooling to LPSI pumps NA 9
HV-9379#@
Shutdown cooling to 1. PSI pumps NA 10B 3/4"-038-C-396 Integrated leak rate test pressure sensor NA 10B 3/4"-039-C-396 Integrated leak rate test pressure sensor NA 16A HV-0500 Post LOCA hydrogen monitor NA 16A HV-0501 Post LOCA hydrogen monitor NA 16B HV-0502 -
Post LOCA hydrogen monitor NA 16B HV-0503 Post LOCA hydrogen monitor NA 20 2"-321-C-376 Quench tank makeup NA i
- Manual valves may be opened on an intermittent basis under administrative control.
- Power to the valve removed in accordance with Specification 3.6.1.7.
- Not subject to Type C leakage tests.
0 Shutdown cooling valves may be opened in MODE 4.
SAN ONOFRE - UNIT 2 3/4 6-21 AMEN 0 MENT NO.46
)
I leBLE 3.6-1 3
CONTAINMENT ISOLATION VALVES (Continued) j MAXIMUM PENETRATION ISOLATION l
NUMBER VALVE NUMBfB FUNCTION TIME (SEC)
C.
MANUAL * (Cont.)
21 2"-055-C-387 Service air supply line NA 25 10"-100-C-212 Refueling canal fill and drain NA 25 10"-101-C-212 Refueling canal fill and drain NA 31 HV-9946 Containment hydrogen purge inlet NA 31 HCV-9945 Containment hydrogen purge inlet NA 68 2"-130-C-334 Charging line to auxiliary spray NA 70 2"-037-C-387 Auxilifry steam inlet to utility stations NA 70 2"-038-C-387 Auxiliaiy steam inlet to utility stations NA 74 HV-9917 Containment hydrogen purge outlet NA 74 HCV-9918 Containment hydrogen purge outlet NA
- Manual valves may be opened on an intermittent basis under administrative control.
SAN ONOFRE - UNIT 2 3/4 6-22 Amendment No. 46,119
f Deleted Intentionally SAN ON0FRE - UNIT 2 3/4 6-23 Amendment No. 98,119
(,
TABLE 3.6-1 CONTAINMENT ISOLATION VALVES (Continued)
MAXIMUM PENETRATION ISOLATION NUMBER VALVE NUMBER FUNCTION TIME (SEC)
Dl.
SAFETY INJECTION 3
HV-9323#
High Pressure Safety Injection NA 3
HV-9324#
High Pressure Safety Injection NA 5
HV-9326#
High Pressure Safety Injection NA 5
HV-9327#
High Pressure Safety Injection NA 39 HV-9329#
High Pressure Safety Injection NA 39 HV-9330#
High Pressure Safety Injection NA 41 HV-9332#
High Pressure Safety Injection NA 41 HV-9333#
High Pressure Safety Injection NA 48 HV-9322#
Low Pressure Safety Injection NA 49 HV-9325#
Low Pressure Safety Injection NA 50 HV-9328#
Low Pressure Safety Injection NA 51 HV-9331#
Low Pressure Safety Injection NA D2.
OTHER 8
HV-9200 Charging line to regenerative heat exchanger NA 10A HV-0352A#
Containment pressure detectors NA 27A HV-03520#
Containment pressure detectors NA 40A HV-03528#
Containment pressure detectors NA 73A HV-0352C#
Containment pressure detectors NA 52 HV-9367 Containment spray inlet NA 53 HV-9368 Containment spray inlet NA 56 HV-6366 Containment emergency A/C cooling water inlet NA 57 HV-6372 Containment emergency A/C cooling wa':er inlet NA 58 HV-6368 Containment emergency A/C cooling water inlet NA 59 HV-6370 Containment emergency A/C cooling water inlet NA 60 HV-6369 Containment emergency A/C cooling water outlet NA 61 HV-6371 Containment emergency A/C cooling water outlet NA 62 HV-6367 Containment emergency A/C cooling water outlet NA 63 HV-6373 Containment emergency A/C cooling water outlet NA
- Not subject to Type C leakage tests.
i SAN ON0FRE - UNIT 2 3/4 6-23a Amendment No.119 l
TABLE 3.6-1 CONTAINMENT ISOLATION VALVES (Continued)
MAXIMUM PENETRATION ISOLATION NUMBER VALVE NUMBER FUNCTION TIME (SEC)
E.
OTHER 1
3 3"-018-A-551#
High pressure safety injection NA 5
3"-019-A-551#
High pressure safety injection NA 8
2"-122-C-554 Charging line to regenerative heat exchanger NA 17 HV-4058#*
Steam generator secondary coolant sample NA i
32 HV-8202#
Mainsteam isolation bypass NA 33 HV-8203#
Mainsteam isolation bypass NA 36 HV-4054#*
Steam generator blowdown NA 37 HV-4053#*
Steam generator blowdown NA l
39 3"-020-A-551#
High pressure safety injection NA 41 3"-021-A-551#
High pressure safety injection NA 44 HV-4057#*
Steam generator secondary coolant sample NA 48 8"-072-A-552#
Low pressure safety injection NA 49 8"-073-A-552#
Low pressure safety injection NA 50 8"-074-A-552#
Low pressure safety injection NA 51 8"-075-A-552#
Low pressure safety injection NA 52 8"-004-C-406 Containment spray inlet NA 53 8"-006-C-406 Containment spray inlet NA 54 HV-9304#9 Containment emergency sump recirculation NA 54 HV-9302#9 Containment emergency sump recirculation NA 55 HV-9305#@
Containment emergency sump recirculation NA 55 HV-9303#9 Containment emergency sump recirculation NA j
67 3"-157-A-550 Hot leg injection NA 67 HV-9434 Hot leg injection NA 71 3"-158-A-550 Hot leg injection NA 71 HV-9420 Hot leg injection NA
- Not subject to Type C leakage tests.
- Manual valves may be opened on an intermittent basis under administrative control.
9 These valves are surveilled for position and power available by Technical Specification 3/4 5.2.
SAN ON0FRE - UNIT 2 3/4 6-23b Amendment No.119
t DELETED INTENTIONALLY t
1 1
1 t
4 SAN ONOFRE-UNIT 2 3/4 6-24 AMENDMENT NO. 46
l CONTAINMENT SYSTEMS BASES 3/4.6.3 CONTAINMENT ISOLATION VALVES (Continued)
Section C of Table 3.6-1 contains a listing of manual valves that are normally closed and assumed to be closed under design basis accident conditions, but which may be opened intermittently for service, maintenance or test during normal operation provided adequate administrative controls are implemented to ensure operator action is taken to close such valves ir the event of an accident.
All valves in Section A, B, C, or E are considered OPERABLE for containment l
isolation purpose if they are indeed locked, sealed or otherwise secured in the closed position and leakage through the affected flow path is shown to be within limits when tested pursuant to 10 CFR 50 Appendix J.
Sections 01 and D2 of Table 3.6-1 each contain a listing of valves which operate automatically to open on an ESFAS signal to prevent or mitigate the consequences of the design basis accident.
Surveillance requirement 4.6.1.1.a is not applicable to such valves.
The OPERABILITY of such valves is determined by ESFAS response time testing of Specification 3/4.3.2.
g Section E of Table 3.6-1 contains a listing of valves which operate automatically to close on an ESFAS signal, valves with dual ESFAS functions (0 pen /Close), and check valves.
Surveillance Requirement 4.6.1.1.a is not applicable to such valves.
The OPERABILITY of such valves is determined by ESFAS response time testing of Specification 3/4.3.2.
The appropriate Action statement (s) of those Limiting Conditions for Operation pertaining to the valve (s) or system in which it is installed shall be applicable.
3/4.6.4 COMBUSTIBLE GAS CONTROL The OPERABILITY of the equipment and systems required for the detection and control of hydrogen gas ensures that this equipment will be available to maintain the hydrogen concentration within containment below its flammable limit during post-LOCA conditions.
Either recombiner unit is capable of l
controlling the expected hydrogen generation associated with 1) zirconium-water reactions, 2) radiolytic decomposition of water and 3) corrosion of metals within containment. These hydrogen control systems are consistent with the recommendations of Regulatory Guide 1.7, " Control of Combustible Gas Concentrations in Containment Following a LOCA", March 1971.
The containment dome air circulators are provided to ensure adequate mixing of the containment atmosphere following a LOCA.
The mixing action of the containment dome air circulators combined with the containment spray system and the containment emergency fan coolers will prevent localized accumulations of hydrogen from exceeding the flammable limit.
SAN ONOFRE - UNIT 2 B 3/4 6-5 Amendment No. 46,119
p*U%
y*
UNITED STATES g
,j NUCLEAR REGULATORY COMMISSION 2
WA8HINGTON, D.C. 20665-0001 SOUTHERN CALIFORNIA EDIS0N COMPANY SAN DIEGO GAS AND ELECTRIC COMPANY THE CITY OF RIVERSIDE. CALIFORNIA THE CITY OF ANAHEIM. CALIFORNIA DOCKET NO. 50-362 SAN ON0FRE NUCLEAR GENERATING STATION. UNIT NO. 3 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.108 License No. NPF-15 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment by Southern California Edison Company, et al. (SCE or the licensee) dated November 3,1993, 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 rules and 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 common 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 changes to the Technical Speci-fications as indicated in the attachment to this license amendment, and paragraph 2.C(2) of Facility Operating License No. NPF-15 is hereby amended to read as follows:
(2)
Technical Soecifications The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Amendment No.
108, are hereby incorporated in the license.
Southern California Edison Company 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 its issuance and to be implemented 30 days from the date of issuance.
FOR THE NUCLEAR REGULATORY COMMISSION
{/fr / Y. h c b W Mel B. Fields, Project Manager Project Directorate IV-2 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance:
May 17, 1995
a ATTACHMENT TO LICENSE AMENDMENT AMENDMENT NO. 108 TO FACILITY OPERATING LICENSE NO. NPF-15 DOCKET NO. 50-362 l
Revise Appendix A Technical Specifications by removing the pages identified below and inserting the enclosed pages.
The revised pages are ic..itified by Amendment number and contain marginal lines indicating the areas of change.
The corresponding overleaf pages are also provided to maintain document completeness.
REMOVE INSERT 3/4 6-19 3/4 6-19 3/4 6-20 3/4 6-20 3/4 6-23 3/4 6-23 3/4 6-24 3/4 6-24 3/4 6-24a 3/4 6-24b B 3/4 6-5 B 3/4 6-5
7-a I
CONTAINMENT SYSTEMS 3/4.6.3 CONTAINMENT ISOLATION VALVES LIMITING CONDITION FOR OPERATION 3.6.3 The containment isolation valves specified in Table 3.6-1 shall be OPERABLE with isolation times as shown in Table 3.6-1.
APPLICABILITY:
MODES 1, 2, 3 and 4.
ACTION:
1.
With one or more of the isolation valve (s) specified in Section A, B, C, l
and E of Table 3.6-1 inoperable, maintain at least one isolation valve I
OPERABLE in each affected penetration
- that is open and either:
a.
Restore the inoperable valve (s) to OPERABLE status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, or b.
Isolate each affected penetration within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> by use of at least one automatic valve secured ** in the isolation position, or one closed manual valve or blind flange, or c.
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 />, g
2.
With one or more of the valves specified in Section D1 of Table 3.6-1 inoperable, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> secure the inoperable valve (s) in its ESFAS actuated position, and restore the inoperable valve (s) to OPERABLE status during the next cold shutdown or 30 days, whichever is shorter; 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 />.
3.
With one or more of the valves specified in Section D2 of Table 3.6-1 inoperable, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> secure the inoperable valve (s) in its ESFAS actuated position, and restore the inoperable valve (s) to OPERABLE status during the next cold shutdown; 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 with the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
4.
The provisions of Specification 3.0.4 are not applicable.
i
- Any flow path from the atmosphere or a piping system inside of containment to the atmosphere or a piping system ou'tside of containment.
Each flow path is considered as a separate " penetration".
- Locked, sealed or otherwise prevented from unintentional operation.
SAN ON0FRE - UNIT 3 3/4 6-19 Amendment No. &5,108 i
CONTAINMENT SYSTEMS SURVEILLANCE RE0VIREMENTS l
4.6.3.1 The isolation valves specified in Section A, B, and E of Table 3.6-1 l
shall be demonstrated OPERABLE prior to returning the valve to service after maintenance, repair or replacement work is performed on the valve or its associated actuator, control or power circuit by performance of testing pursuant to Specification 4.0.5.
Valves secured ** in their isolated position l
are considered OPERABLE pursuant to this specification.
4.6.3.2 Each isolation valve (except check valves) specified in Section A, B, and E of Table 3.6-1 shall be demonstrated OPERABLE during the COLD SHUTDOWN or REFUELING MODE at least once per refueling interval by verifying that on an ESFAS test signal, each isolation valve actuates to its isolation position.
4.6.3.3 The isolation time of each power operated or automatic valve (except check valves) in Section A and 8 of Table 3.6-1 shall be determined to be within its limit when tested pursuant to Specification 4.0.5.
4.6.3.4 The manual isolation valves specified in Section C of Table 3.6-1 shall be demonstrated OPERABLE in accordance with Specifications 4.6.1.1.a and 4.6.1.2.d.
4.6.3.5 The isolation valves specified in Section D1 and D2 of Table 3.6-1 l
shall be demonstrated OPERABLE as required by Specification 4.0.5 and surveillance requirements associated with those Limiting Conditions for Operation pertaining to each valve or system in which it is installed.
Specification 4.0.5 is not applicable when the valves are secured open.
l
- Locked, sealed or otherwise prevented from unintentional operation.
SAN ONOFRE - UNIT 3 3/4 6-20 Amendment No. f4,108
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TABLE 3.6-1 CONTAINMENT ISOLATION VALVES (Continued)
MAXIMUM PENETRATION ISOLATION NUMBER YALVE NUMBER FUNCTION TIME (SEC)
C.
MANUAL * (Cont.)
21 2"-055-C-387 Service air supply line NA 25 10"-100-C-212 Refueling canal fill and drain NA 25 10"-101-C-212 Refueling canal fill and drain NA 31 HV-9946 Containment hydrogen purge inlet NA 31 HCV-9945 Containment hydrogen purge inlet NA 68 2"-130-C-334 Charging line to auxiliary spray NA 70 2"-037-C-387 Auxiliary steam inlet to utility stations NA 70 2"-038-C-387 Auxiliary steam inlet to utility stations NA 74 HV-9917 Containment hydrogen purge outlet NA 74 HCV-9918 Containment hydrogen purge outlet NA 3
i Manual valves may be opened on an intermittent basis under administrative control.
f f
SAN ON0FRE - UNIT 3 3/4 6-23 Amendment No. 36,108 i
Deleted Intentionally SAN ONOFRE - UNIT 3 3/4 6-24 Amendment No. 87,108
s TABLE 3.6-1 CONTAINMENT ISOLATION VALVES (Continued)
MAXIMUM PENETRATION ISOLATION NUMBER VALVE NUMBER FUNCTION TIME (SEC)
DI.
SAFETY INJECTION 3
HV-9323#
High Pressure Safety Injection NA 3
HV-9324#
High Pressure Safety Injection NA 5
HV-9326#
High Pressure Safety Injection NA 5
HV-9327#
High Pressure Safety Injection NA 39 HV-9329#
High Pressure Safety Injection NA 39 HV-9330#
High Pressure Safety Injection NA 41 HV-9332#
High Pressure Safety Injection NA 41 HV-9333#
High Pressure Safety Injection NA 48 HV-9322#
Low Pressure Safety Injection NA 49 HV-9325#
Low Pressure Safety Injection NA 50 HV-9328#
Low Pressure Safety Injection NA 51 HV-9331#
Low Pressure Safety Injection NA D2.
OTHER 8
HV-9200 Charging line to regenerative heat exchanger NA 10A HV-0352A#
Containment pressure detectors NA 27A HV-03520#
Containment pressure detectors NA 40A HV-0352B#
Containment pressure detectors NA 73A HV-0352C#
Containment pressure detectors NA 52 HV-9367 Containment spray inlet NA 53 HV-9368 Containment spray inlet NA 56 HV-6366 Containment emergency A/C cooling water inlet NA 57 HV-6372 Containment emergency A/C cooling water inlet NA 58 HV-6368 Containment emergency A/C cooling water inlet NA 59 HV-6370 Containment emergency A/C cooling water inlet NA 60 HV-6369 Containment emergency A/C cooling water outlet NA 61 HV-6371 Containment emergency A/C cooling water outlet NA 62 HV-6367 Containment emergency A/C cooling water outlet NA 63 HV-6373 Containment emergency A/C cooling water outlet NA
- Not subject to Type C leakage tests.
SAN ONOFRE - UNIT 3 3/4 6-24a Amendment No.108
b TABLE 3.6_1 CONTAINMENT ISOLATION VALVES (Continued)
PENETRATION MAXIMUM ISOLATION NUMBER VALVE NUMBER FUNCTION TIME (SEC)
E.
OTHER 3
3"-018-A-551#
High pressure safety injection NA 5
3"-019-A-551#
High pressure safety injection NA 8
2"-122-C-554 Charging line to regenerative heat exchanger NA 17 HV-4058#*
Steam generator secondary coolant sample NA 32 HV-8202#
Mainsteam isolation bypass NA 33 HV-8203#
Mainsteam isolation bypass NA 36 HV-4054#*
Steam generator blowdown NA 37 HV-4053#*
Steam generator blowdown NA 39 3"-020-A-551#
High pressure safety injection NA 41 3"-021-A-551#
High pressure safety injection NA 44 HV-4057#*
Steam generator secondary coolant sample NA 48 8"-072-A-552#
Low pressure safety injection NA 49 8"-073-A-552#
Low pressure safety injection NA 50 8"-074-A-552#
Low pressure safety injection NA 51 8"-075-A-552#
Low pressure safety injection NA 52 8"-004-C-406 Contair. ment spray inlet NA 53 8"-006-C-406 Containment spray inlet NA 54 HV-9304#9 Containment emergency sump recirculation NA 54 HV-9302#9 Containment emergency sump recirculation NA 55 HV-9305#9 Containment emergency sump recirculation NA 55 HV-9303#9 Containment emergency sump recirculation NA 67 3"-157-A-550 Hot leg injection NA 67 HV-9434 Hot leg injection NA 71 3"-158-A-550 Hot leg injection NA 71 HV-9420 Hot leg injection NA
- Not subject to Type C leakage teste.
- Manual valves may be opened on an intermittent basis under administrative control.
9 These valves are surveilled for position and power available by Technical Specification 3/4 5.2.
i SAN ONOFRE - UNIT 3 3/4 6-24b Amendment No.108
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CONTAINMENT SYSTEMS BASES 3/4.6.3 CONTAINMENT ISOLATION VALVES (Continued)
All valves in Section A, B, C, or E are considered OPERABLE for containment l
isolation purpose if they are indeed locked, sealed or otherwise secured in the closed position and leakage through the affected flow path is shown to be within limits when tested pursuant to 10 CFR 50 Appendix J.
Sections D1 and D2 of Table 3.6-1 each contain a listing of valves which l
operate automatically to open on an ESFAS signal to prevent or mitigate the consequences of the design basis accident.
Surveillance requirement 4.6.1.1.a is not applicable to such valves. The OPERABILITY of such valves is determined by ESFAS response time testing of Specification 3/4.3.2.
l Section E of Table 3.6-1 contains a listing of valves which operate automatically to close on an ESFAS signal, valves with dual ESFAS functions (0 pen /Close), and check valves.
Surveillance Requirement 4.6.1.1.a is not applicable to such valves.
The OPERABILITY of such valves is determined by ESFAS response time testing of Specification 3/4.3.2.
The appropriate Action statement (s) of those Limiting Conditions for Operation pertaining to the valve (s) or system in which it is installed shall be applicable.
3/4.6.4 COMBUSTIBLE GAS CONTROL The OPERABILITY of the equipment and systems required for the detection and control of hydrogen gas ensures that this equipment will be available to maintain the hydrogen concentration within containment below its flammable limit during post-LOCA conditions.
Either recombiner unit is capable of controlling the expected hydrogen generation associated with 1) zirconium-water reactions, 2) radiolytic decomposition of water and 3) corrosion of metals within containment. These hydrogen control systems are consistent with the recommendations of Regulatory Guide 1.7, " Control of Combustible Gas Concentrations in Containment Following a LOCA", March 1971.
The containment dome air circulators are provided to ensure adequate mixing of the containment atmosphere following a LOCA.
The mixing action of the containment dome air circulators combined with the containment spray system and the containment emergency fan coolers will prevent localized accumulations of hydrogen frem exceeding the flammable limit.
SAN ONN0FRE - UNIT 3 B 3/4 6-5 Amendment No. 35,108