ML19326C014
| ML19326C014 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 03/24/1978 |
| From: | Reid R Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19326C011 | List: |
| References | |
| NUDOCS 8004180702 | |
| Download: ML19326C014 (6) | |
Text
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UNITED STATES j
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, 'g NUCLEAR REGULATORY COMMISSION
.g wAsWNGTON, D. C. 20555 e
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ARKANSAS POWER & LIGHT COMPANY DOCKET NO. 50-313 ARKANSAS NUCLEAR ONE, UNIT NO. 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 32 License No. DPR-51 1.
The Nuclear Regulatory Comission (the Comission) has found that:
A.
The application for amendment by Arkansas Power & Light Company (the licensee) dated February 27, 1978, 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 confonnity 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 requiremnts have been satisfied.
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o 2.
Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.c.(2) of Facility Operating License No. DPR-51 is hereby amended to read as follows:
(2) Technical Specifications The Technical Specifications contained in Appendices
- A and B, as revised through Amendment No. 32, are hereby incorporated in the license. The licensee shall operate the facility in accordance with the Technical Specifications.
3.
This license amendment is effective as of the date of its-issuance.
FOR THE NUCLEAR REGULATORY COMMISS10ft
'h'Y.,g Robert W. Reid, Chief Operating Reactors Branch #4 Division of Operating Reactors
Attachment:
Changes to the Technical Specifications Date of Issuance: fiarch 24, 1978
ATTACHMENT TO LICENSE AMENDMENT NO. 32 FACILITY OPERATING LICENSE NO. DPR-51 DOCKET NO. 50-313 Revise the Appendix A Technical Specifications as follows:
Remove Pages Insert Pages' 60 60 t
61 61 107 107 Changes on the revised pages are identified by marginal lines.
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3.9 CONTROL ROGi EMERGENCY AIR CONDITIONING AND ISOLATION SYSTEM Applicability Applies to the operability of the control room emergency air conditioning and isolation system.
Objective To ensure that the control room emergency air conditioning and isolation system will perform within acceptable levels of efficiency and reliability.
Specification 3.9.1 Two independent circuits of the contr:1 room emergency air condition-ing and isolation system shall be ararabis. whenever reactor building integrity is required with the following performance capabilities; a.
The results of the in.-place cold DOP and halogenated hydrocarbon tests at design flow (: 10S.) on HEPA filt'ers and charcoal adsorber banks shall show > 99% DOP removal and >99's halogenated hydrocarbon
- removal, b.
The results of laboratory carbon sample analysis from the charcoal adsorber banks shall'show > 90*5 radioactive methyl iodide remoyal at a velocity within 20's of system design,' O.05 to 0.15 mg/m# inlet iodide concentration, > 95'4 R. II. and > 125F.
c.
Fans shall be shown to operate within 10*$ of ' design flow.
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d.
The pressure drop across the combined HEPA filters and charcoal ad-sorber banks shall be less than 6 inches of water at system design flow rate.(: 10+.).
e.
One circuit of the system shall be capable of automatic initiation.
f.
The dampers shall isolate the control room within 10 seconds after receipt of a high radiation signal.
3.9.2 If one circuit of the control room emergency air conditioning and isola-tion sy tem is made or found to be inopc able for any reason, reactor operation is permissible only during the succeeding seven days provided that during such seven days all active components of the other circuit shall be operable.
3.9.3 If the requirements of Specification 3.9.1.f cannot be met, either close the isolation dampers or disable the supply fan.
3.9.4 If the requirements of Specifications 3.9.1 and 3.9.2 cannot be met the
. reactor shall be placed in the cold shutdown condition within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.
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Amendment No. 1, 32 60
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Bases The control roam emergency air conditioning and isolation system is designed to isolate the control room and filter the control room acmosphere during con-trol room isolation conditions. One circuit is designed to automatically start upon control room isolation and the other circuit to Se manually started on failure of the first circuit.
High efficiency particulate air (HEPA) filters are installed before the char-coal adsorbers to prevent clogging of the iodine adsorbers. The charcoal ad-sorbers are installed to reduce the potential intake of radioiodine to the con--
trol room. The in-place test results should indicate a system leak tightness of less than 1 percent bypass leakage for the charcoal adsorbers and a HEPA effi-ciency of at least 99 percent removal of DOP particulates. The laboratory car-bon sample test results should indicate a radioactive methyl iodide removal efficiency of at least 90 percent for expected accident conditions.
If the efficiencies of the HEPA filters and charcoal adsorbers are as specified, the resulting doses will be less than the allowable levels stated in Criterion 19 of the General Design Criteria for Nuclear Power Plants, Appendix A to 10 CFR Part S0 Operation or the fans significantly different from the design flow will change the removal efficiency of the HEPA filters and charcoal adsorbers.
If one circuit of the control room emergency air conditioning and isolation system is f9und to be inoperable, there is not an bumediate threat to the con-trol room and reactor operation may continue for a limited period of time while repairs are being*made.
If the control room isolation dampers are made or found to be inoperable, continued reactor operation is allowed provided the potential for outside air flow is re-moved as provided by Specification 3.9.3.
The 10 second closure time requirement is far below that required to support accident dose calculations and is there-fore conservative.
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Amendment No. )d', 32 61 (next Date is 66)
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4.10 CONTROL R004 EMERGENCY AIR CONDITIONING AND ISOLATION SYSTEM SURVEILLANCE Applica5ility Applies to the surveillance of the control room mergency air conditioning and isolation system.
Objective To verify an acceptable level of efficiency and operability of the control room emersency air conditioning and isolation system.
Specification 4.10.1 At intervals not to exceed 18 months, the pressure drop across the com-bined HEPA filters and charcoal adsorber banks shall be demonstrated to be less than 6 inches of water at' system' design flow (! 10%).
4'.10.2 At intervais not to exceed 18 months, automatic initiation of the control room emergency air conditioning and isolation system shall be demonstrated to meet the requirements of Specification 3.9.
4.10.3.a. The tests and sample analysis of Specification 3.9.1.a,b, 6 c, shall be performed at intervals not to exceed 18 months or after every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of system operation and following,significant painting, fire or chem-ical release in any ventilation :one communicating with the system.
- b. Cold DOP testing shall clso be performed after-each complete er partial replacement of the HEPA filter bank or after any structural maintenance on the system housing.
- c. Halogenated hydrocarbon testing shall also be performed after each com-plete or partial replacement of the charcoal adsorber bank or after.any structural maintenance on the system housing.
4.10.4 Each circuit shall be operated at least I hour every month.
Bases The purpose of the control room filtering system is to limit the particulate and gaseous fission products to which the control area would be subjected during an accidental radioactive release in or near the Auxiliary Building. The system is designed with 100 percent capacity filter trains which consist of a prefilter, high efficiency particulate filters, charcoal adsorbers and a fan.
Since the system is not norna11y operated, a periodic test is required to insure operability when needed. During this test the system will be inspected for such things as water, oil, or other foreign material; gasket deterioration, Amendment No.
32 107
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