ML20151X184
| ML20151X184 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 08/09/1988 |
| From: | Muller D Office of Nuclear Reactor Regulation |
| To: | Illinois Power Co |
| Shared Package | |
| ML20151X189 | List: |
| References | |
| NPF-62-A-007 NUDOCS 8808250275 | |
| Download: ML20151X184 (10) | |
Text
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'o UNITED STATES g
NUCLEAR REGULATORY COMMISSION o
y e a WASHINGTON, D. C. 20555
.....l i
ILLINOIS POWER COMPANY, ET AL DOCKET NO. 50-461 CLINTON POWER STATION, UNIT NO. 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 7 License No. NPF-62 1.
The Nuclear Regulatory Comission (the Comission) has found that:
A.
The application for amendment by the Illinois Power Company * (IP),
Soyland Power Cooperative, Inc. and Western Illinois Power Cooperative,Inc.(thelicensees)datedOctober 30, 1987 complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Comission's rules and 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 Comission; 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; and 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.
I
- Illinois pol V any is authorized to act as agent for Soyland Power i
l Cooperative, Inw. :ad Western Illinois Power Cooperative, Inc. and has exclusive responsibility and control over the physical construction, operation and maintenance of the facility, i
t 8808250275 000009 DR ADOCK 050 1
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2.
Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license aaendment, and paragraph 2.C.(2) of Facility Operating License No. NPF-62 is hereby amended to read as follows:
Technical Specifit:ations and Environmental Protection Plan The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Amendment No.
7, are hereby incorporated into this license.
IP 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 d
4 to Daniel R. Muller, Director Project Directorate III-2 Division of Reactor Projects - III, IV, Y and Special Projacts
Attachment:
Changes to the Technical Sp cifications Date of Issuance:
August 9, 1988
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o ATTACHMENT TO LICENSE AMENDMENT NO. 7 FACILITY OPERATING LICENSE NO. NPF-62 POCKET NO. 50-461 Replace the following pages of the Appendix "A" Technical Specifications with the attached pages. The revised pages are identifed by amendment n mber and a
contain vertical lines indicating the area of change. Overleafpage(s)are provided to maintain document completeness.
Remove Insert 3/4 6-12 3/4 6-12 3/4 6-13 3/4 6-13 3/4 6-21 3/4 6-21 3/4 6-22 3i
- 6-22 3/4 6-38 3/4 6-38 8 3/4 6-3 8 3/4 6-3 B 3/4 6-5 B 3/4 6-5 l
t A
4
C'ONTAINMENT SYSTEMS CONTAINMENT BUILDING VENTILATION AND PURGE SYSTEMS LIMITING CONDITION FOR OPERATION 3.6.1.8 The primary containment building ventilation 36-inch supply (1VR001A, IVR0018) and 36-inch exhaust (1VQ004A, IVQ004B) isolation valves and the containment purgo 12-inch supply (1VR006A, IVR006B) and 12-inch exhaust (1VR007A, IVR0078) isolation valves shall be OPERABLE, and a.
Primary containment building ventilation 36-inch supply and exhaust isolation velve(s) may be open for containment ventilation system operation
- with l
such operation limited to <500 hours # per year for reducing airborne activity and atmosphere control for personnel safety.
b.
Primary containment building ventilation 36-inch supply and exhaust isolation valves shall be closed when the 12-inch containment purge isolation valve (s) are open.
The 12-inch containment purge valves may be opened for reducing airborne activity and for atmospheric control to support containment access requirements to perform surveillances in accordance with these Technical Specifications.## When the 12-inch containment purge system is not required to support these access needs, the 12-inch valves shall be closed.
APPLICABILITY:
OPERATIONAL CONDITIONS 1, 2, and 3.
ACTION:
a.
With the containment building ventilation 36-inch supply and/or exhaust isolation valve (s) inoperable or open for more than 500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> per year for containment ventilation system operation, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> close the open 36-inch isolation valve (s) or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTOOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, b.
With containment purge 12-inch supply and/or exhaust isolation valve (s) in-operable, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> close the inoperable valve (s) or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTOOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
- Containment ventilation system operation shall be defined as any time 36-inch supply and/or exhaust isolation valves are open except when opened for j
inservice testing performed pursuant to Specification 4.0.5.
- Applicable for the period from initial fuel load to 3 months after completion of the first refueling outage, otherwise a 250 hours0.00289 days <br />0.0694 hours <br />4.133598e-4 weeks <br />9.5125e-5 months <br /> per 365 days limit shall be imposed.
- The 12-inch containment purge valves may be maintained open when required l
to support multiple daily access to the containment to perform required surveillances.
CLINTON - UNIT 1 3/4 6-12 Amendment No. 7
i CONTAINMENT SYSTEMS CONTAINMENT BUILDING VENTILATION AND PURGE SYSTEMS I
LIMITING CONDITIONS FOR OPERATION (Continued) 3.6.1.8 ACTION (Continued) c..
With the containment purge supply and/or exhaust isolation valves with resilient material seals having a measured leakage rate exceeding the limit of Surveillance Requirement 4.6.1.8.3, restore the inoperable valves
-to 0PERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at-least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> or in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
SURVEILLANCE REQUIREMENTS t
4.6.1.8.1 The cumulative time that the 36-inch supply and exhaust containment ventilation isolation valves have been open during the past 3% days for containment ventilation system operation shall be determined at least onco per 7 days.
4.6.1.8.2 Deleted i
4.6.1.8.3 At least once per 92 days each 36-inch supply and exhaust contain-l meat ventilation isolation valve (with resilient material seals) shall be i
demonstrated OPERA 8LE by verifying that the measured rate is <0.01 La when pressurized to Pa.
1 t
4.6.1.8.4 Prior to opening the containment building ventilation system 36-inch supply and/or exhaust valve (s), verify that each containment purge 12-inch supply and exhaust isolation valve is closed.
4.6.1.8.5 Prior to opening th: 12-inch va'Ive(s), verify that the 36-inch con-tainment building ventilation supply exhaust isolation valves are closed.
Once the requirement for reducing airborne activity and. atmospheric control is com-plated, the 12-inch valves shall be closed, i
i CLINTON - UNIT 1 3/4 6-13 Amendment No. 7
CONTAINMENT SYSTEM _S DRYWELL VENT AND PURGE SYSTEM LIMITING CONDITION FOR OPERATION 3.6.2.7 The drywell vent and purge system 24-inch supply isolation valves (1VQ001A, IVQ0018), the 10-inch (1VQ005) and 24-inch (IVQOO2) exhaust isola-tion valves, and the 36-inch outboard isolation valve (1VQ003) thall be OPERABLE.
a.
Each 24-inch supply isolation valve shall be sealed closed.
b.
Either the 10-inch (1VQ005) or the 24-inch (1VQ002) exhaust isolation valve may be open for drywell vent system operation
- with such operation limited to 5** hours per 365 days for pressure control.
APPLICABILITY: OPERATIONAL CONDITIONS 1, 2, and 3.
ACTION:
a.
With a 24-inch drywell vent and purge supply isolation valve (s) (IVQ001A, IVQ001B) open, not sealed closed or otherwise inoperable, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> close and seal the valve (s) or be in at least HOT SHUTOOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> tind in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
b.
With a 10-inch (1VQ005) or 24-inch (IVQ002) drywell vent and purge exhaust isolation valve (s) inoperable or open for more than 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> per 365 days, for drywell vent system operation *, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> close the open l
10-inch and 24-inch exhaust isolation valve (s) or be in at least HOT SHUTOOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, c.
The provisions of Specification 3.0.4 are not anplicable provided the affected penetration is isolated in accrdMea sith ACTION a, above, and provided that th: n;wdathd system, if applicable, is declared inoparable
>nd apPopriate ACTION statements for that syste:n are performed.
SURVEILLANCE REQUIREMENTS 4.6.2.7.1 Each 24-inch drywell vent and purge supply isolation valve (1VQ001A, IVQ001B) shall be verified to be sealed closed at least once per 31 days.
- Drywell vent system operation shall be defined as any time either the 10-inch l
or the 24-inch inboard exhaust valves are open concurrent with all valves of Specification 3.6.1.8 closed.
This excludes the time when either of these valves is opened for inservice testing performed pursuant to specification 4.0.5 (concurrent with all valves of Specification 3.6.1.8 closed).
- Applicable for the period for initial fuel load date to 3 months af ter comple-l tion of the first refueling outage, otherwise these valves should be locked closed.
CLINTON - UNIT 1 3/4 6-21 Amendment No. 7 I
CONTAINMENT SYSTEMS DRYWELL VENT AND PURGE SYSTEM CURVEILLANCE REQUIREMENTS (Continued) 4.6.2.7.2 The cumulative time that the 10-inch and 24-inch drywell vent and purge exhaust isolation valves (1VQ005, IVQ002) have been open during the past 365 days for purge system operation
- shall be determined at least once per 7 days.
4.6.2.7.3 Prior to opening a 10-inch (1VQ005) or 24-inch drywell vent and purge exhaust isolation valve (1VQ002) demonstrate that the 12-inch containment continuous purge isolation supply valves and the 36-inch containment ventila-tion isolation supply valves of Specification 3.6.1.8 are closed.
- Drywell vent system operation shall be defined as any time either the 10-inch or the 24-inch inboard exhaust valves are open concurrent with all valves of Specification 3.6.1.8 closed.
This excludes tha time when either of these talves is opened for inservice testing performed pursuant to Specification 4.0.5 (concurrent with all valves of Specification 3.6.1.8 closed).
CLINTON - UNIT 1 3/4 6-22 Amendment No. 7
TABLE 3.6.4-1 (Continued)
' [.
{
CONTAINMENT ISOLATION VALVES z
U MAXIMUM SECONDARY
~
7 APPLICABLE ISOLATION CONTAINMENT TEST VALVE PENETRATION ISOLATION OPERATIONAL TIME BYPASS PATH PRESSURE NUMBErt NU'4BER SIGNAlt CONDITIONS _
(Seconds)
(YES/F01, (psig)*
-e w Automatic Isolation Valves (Continued)
- 48) Containment HVAC Supply 101 1, 2, 3,#
Yes 9.0 IVR001A B,L,M,Z,5,R 4
IVR001B B,L,M,Z,5,R 4
P 1(g) 2(g) 16 l
IVR002A,B(,)
3(9) 4(9),#
- 49) Containment HVAC Exhaust 102 1, 2, 3,#
Yes 9.0 IVQ004A B,L,M,Z,5,R 10 Y
IVQ0048 B,L,M,Z,6,R 10 p
7(g),2(9}
16 l
IVQ006A,B(a) 3(9)'4(9),#
co
- 50) Plant Chilled Water Supply 103 1, 2, 3,#
Yes 9.0 IW0001A L, U 44 IW0001B L, U 44
- 51) Plant Chilled Water Return 104 1, 2, 3,#
Yes 9.0 IW0002A L, U 44 IWOOO2B L, U 44
- 52) Containment Bldg. HVAC 106 1, 2, 3,#
Yes 9.0 E
IVR0078 B,L,M,Z,5,R 6
IVR007A B,L,M,Z,5,R 6
$ 53) DW Chilled Water Supply 107 1,2,3 No 9.0 IVr004B L, U 74 E
IVP005B L, U 74 "54) DW Chilled Water Return 103 1,2,3 No 9.0 IVP014B L, U 74 IVP015B L, U 74 r,
M M
CONTAINMENT SYSTEMS BASES 3/4.6.1.8 CONTAINMENT BUILDING VENTILATION AND PURGE SYSTEMS The 36-inch containment purge supply and exhaust isolation valves have permanently installed blocking devices to restrict their opening to 50* during plant OPEr,A-TIONAL CONDITIONS 1, 2, and 3, since these valves have not been demonstrated capable of closing from the full open position during an accident.
Maintaining l
these valves blocked during plant operations ensures that excessive quantities of radioactive materials will not be released via the containment purge system.
To provide assurance that the 36-inch valves cannot be inadvertently fully opened, they are blocked in accordance with staff's recommendations accepted in SSER 5, paragraph 6.2.4.1.
The use of the containment purge lines is restricted to the 12-inch purge supply and exhaust isolation valves since, unlike the 36-inch valves, the 12-inch valves close during accident conditions and therefore the site boundary dose guidelines of 10 CFR Part 100 would not be exceeded in the event of an accident during purg-ing operations.
The design of the 12-inch purge supply and exhaust isolation valves meets the requirements of Branch Technical Position CSB 6-4, "Containment Purging During Nortnal Plant Operations."
The use of the 12-inch containment purge exhaust and supply lines shall be in accordance with the Clinton Power Station (CPS) "Interim Guidelines for Con-tainment Purge Operation" provided in Illinois Power (IP) Letter U-0731, dated September 10, 1980 These guidelines establish a stechanism for minimizing operation of this system as used only for purposes of reducing containment air-borne radioactivity and atmospheric control.
To support thece interim guidelines, a "Containment Access Management Program," in accordance with the referenced letter and IP Letter U-0716, dated June 29, 1985, is implemented to coordinate all access requirements, hereby minimizing containment occupancy times and thus minimizing the required operation of the 12-inch containment purge system.
This is in accordance with the staff's recommendations accepted in SSER 5, para-graph 6.2.4.1.
Once the 12-inch containment purge system is initiated, it will remain operating to support multiple daily containment access requirements in accordance with referenced guidelines.
Otherwise, the 12-inch containment purge exhaust and supply lines will be isolated.
Continuous containment purge using the 36-inch containment building ventilation system is limited to only OPERATIONAL CONDITIONS 4 and 5.
Intermittent use of the 36-inch system during OPERATIONAL CONDITIONS 1, 2, and 3 is permitted only for the purpose of reducing airborne activity levels, or containment pressure, and atmosphere control (excluding temperature and humidity), and shall not ex-coed 500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> of use per 365 days.
Leakage integrity tests with a maximum allowable leakage rate for 36-inch supply and exhaust isolation valves will provide early indication of resilient material seal degradation and will allow the opportunity for repair before gross leakage l
failures develop.
The 0.60 La leaking limit should not be exceeded when the i
CLINTON - UNIT 1 B 3/4 6-3 Amendment No. 7 i
l 1
a CONTAINMENT SYSTEMS BASES 3/4.6.2.4 DRWELL STRUCTURAL INTEGRITY This limitation ensures that the structural integrity of the drywell will be maintained comparable to the original design specification for the life of the unit. A visual inspection in conjunction with Type A leakage tests is suffi-cient to demonstrate this capability.
3/4.6.2.5 DRWELL INTERNAL PRESSl?E The limitations on drywell-tr a.tainment differential pressure ensure that the drywell peak calculated pressure of 18.9 psig does not exceed the design pressure of 30.0 psig and that the containment peak pressure of 9.0 psig does not exceed the design pressure of 15.0 psig during steam line break conditions.
The maxi-mum external drywell pressure differential is limited to 0.2 psid, well below the pressure at which suppression pool water will be forced over the wier wall and into the drywell.
The limit of 1.0 psid for initial positive drywell to containment pressure will limit the drywell pressure Lo 18.9 psid which is less than the design pressure and is consistent with the safety analysis to limit drywell internal pressure.
3/4.6.2.6 DRWELL AVERAGE AIR TEMPERATURE The limitation on drywell average air temperature ensures that peak drywell temperature does not exceed the design temperature of 330 F during LOCA condi-tions and is consistent with the safety analysis.
3/4.6.2.7 DRWELL VENT AND PURGE The drywell purge system must be normally maintained closed to eliminate a potential challenge to containment structural integrity due to a steam bypass e
of the suppression pool.
Intermittent venting of the drywell is allowed for pressure control during OPERATIONAL CONDITIONS 1, 2, and 3, but the cumulative time of venting is limited to 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> per 365 days.
Venting of the drywell is prohibited when the 12-inch continuous containment purge system or the 36-inch containment building ventilation system supply or exhaust valves are open.
This eliminates any resultant direct leakage path from the drywell to I
the environment.
In OPERATIONAL CONDITIONS 1, 2 and 3, the drywell isolation valves (IVQ002, IVQ003) have permanently installed blocking devices so as not to open more l
than 50'.
This assures that the valve would be able to close against drywell pressure buildup resulting from a LOCA.
Operation of th's drywell vent and purge 24-inch supply and exhaust valves during piant operational conditions 4 and 5 is unrestricted, and the cumulative time l
for vent and purge operation is unlimited.
CLINTON - UNIT 1 B 3/4 6-5 Amendment No. 7
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