ML19320A187
| ML19320A187 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 01/18/1977 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19320A182 | List: |
| References | |
| NUDOCS 8004210491 | |
| Download: ML19320A187 (9) | |
Text
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jf UNITE 3 5TATES f
NUCLEAR REGULATORY COMMISSION 3%
- {h..EM/ e WASHINGTON, D. C. 20656 g
ARKANSAS POWER & LIGHT COMPANY DOCKET NO. 50-313 ARXANSAS NUCLEAR ONE - UNIT NO. 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 18 License No. DPR-51 1.
The Nuclear Regulatory Comission (the Comission) has found that:
A.
The application for amendment by Arkansas Power & Light Comparty (thelicensee)datedNovember 12, 1976, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Comission's rules and regulations i
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; g
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 Comission's regulations and all applicable requirements have been satisfied.
2.
Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendnent, and Paragraph 2.c(2) of Facility Operating License No. DPR-51 is hereby amended to read as follows:
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8004210
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3 ATTACHMENT TO LICENSE AMENDMENT NO. 18 FACILITY OPERATING LICENSE NO. DPR-51 DOCKET NO. 50-313 Appendix A portion of the Technical Specifications with the' g of the Replace existing pages 66c, 669, 85,109,109a,110f, and 110 attached revised pages bearing the same numbers. The changes areas on the revised
. ages are identified by a marginal line.
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m 3.13 PENETRATION. ROOM VENTILATION SYSTEM Applicability Applies to the operability of the penetration room ventilation system.
Objective To ensure that the penetration room ventilation system will perform within acceptable levels of efficiency and reliability.
Specification 3.13.1 Two independut circui'ts of the penetration room ventilation 1
i system shall be operable whenever reactor building integrity is
' required with the following perfomance capabilities:
- a. Ha results of the in-place cold DOP and halogenated hydro-carbon tests at design flow (4 10%) on HEPA filters and charcoal adsorber banks shall show > 99% DOP removal and >
99% halogenated hydrocarbon remova17
- b. %e results of laboratory carbon sample analysis from the charcoal adsorber banks shall show > 90% radioactive methyl
. iodide removal at a velocity within~+ 20% of system design, 0.15 to 0.5 mg/m3 inlet methyl iodide concentration, > 95%
R.H. and > 190F,
- c. Fans shall be shown to operate within + 10% of design flow.
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- d. We pressure drop across the combined HEPA filters and char-coal adsorber banks shall be less than 6 inches of water at system design flow rate (+ 10%).
Air distribution shall be unifor'm within +20% across HEPA e.
filters and charcoal adsorbers ivFeii. tested initially and after any maintenance or testing that could. affect the air distribution within the penetration room ventilation system.-
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- f. Each ciret.it of the system shall be capable of automatic initiation.
3.13.2 If one circuit.of the penetration room ventilat' ion system is,
made or found to be inoperable for any reason, reactor opera-tion is permissible only during the succeeding seven days pro'-
vided that during such seven days all active components of the other circuit shall be operable.
3.13.3 If the requirements of Specifications 3.13.1 and 3.13.2 cannotf.
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 />.
Amendment No. g 18 66c
T 3.15 INEL !!ANDLING AiLEA VENTILATION SYSTDI Applicability Applies to the operability of the fuel handling area ventilation system.
Objective To ensure that the fuel handling area venti'lation system will perform within acceptable levels of efficiency and reliability.
Specification 3.15.1 The fuel handling area ventilation system shall be in operation whenever irradiated fuel handling operations are in progress in the fuel handling area of the auxiliary building and shall have the following performance capabilities:
The results of the in-place cold DOP and halogenated hydro-a.
carbon tests at design flows (+ 10%) on HEPA filters and charcoal adsorber banks shall show > 99% DOP removal and 1 99% halogenated hydrocarbon removal.
b.
The results of laboratory carbon sample analysis shall show
> 90% radioactive methyl iodide removal ag a velocity within
+ 20% of system design, 0.05 to 0.15 mg/m inlet methyl iodide concentration, > 70% R. H. and > 125F.
Fans shall be shown to-operate within + 10% design flow.
c.
d.
The pressure drop across the combined HEPA filters and char-coal adsorber banks shall be less than 6 inches of water at system design flow rate (+ 10%),
e.
Air distribution shall be uniform within +20% across HEPA filterc 2nd charcoal adsorbers when tested initially and after any maintenance or testing that could affect the air distribution within the fuel handling area ventilation system.
3.15.2 If the requirements of Specification 3.15.1 cannot be met ~~
irradiated fuel movement shall not be started (any irradiated fuel assembly movement in progress may be completed).
Bases The fuel handling arca ventilation system is designed to filter the auxiliary building atmosphere during f' c1 handling operations to u
limit the release of activity should a fuel handling accident occur.
The system consists of one circuit containing two exhaust fans and a filter train. The fans are redundant and only one is required to be operating.
The filter train consists of a prefilter, a HSPA filter and a charcoal adsorber in series.
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j Amendment No. )Efl8 66g
s.
4.4.2 Structural Integrity Applicability Applies to the structural integrity of the reactor building.
Obj ective i
To define the structural integrity of the reactor building.
Specification j
4 4.4.2.1 Tendon Surveillance
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For the tendon surveillance program, to be dondudt'ed ~0Ve'r the'lffe of the unit, twenty-one tendons shall be selected on a random j
but representative bi5is each surveillance for inspection.for
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symptoms of material deterioration or force reduction.
The sur-veillance tendons shall consist of ten hoop tendons, at least three in each of the three 240' sectors of the reactor building; five vertical tendons located at approximately equally spaced j
intervals; and six done tendons, two in each of the three groups 1
of dome tendons.
4.4.2.1.1 Lift-Off Lift-off readings shall be taken for all 21 surveillance tendons.
4.4.2.1.2 Wire Insppetion and Testing, A minimum of three surveillance tendons, one from each of the hoop, vertical, and dome families, shall be relaxed and one wire from each relaxed tendon shall be removed as a samp.le and visually inspected for corrosion or pitting.
In addition, the applicable anchor assemblies shall be inspected for delete-rious conditions, such as corrosion, cracks, missing wires and off size button heads. Tensile and elongation tests shall also be performed on a minimum of three specimens taken from the ends and middle of each of the wires. The specimens shall be the maximum length acceptable for the test apparatus to be used and shall include areas representative of significant corrosion or pitting.
After the wire removal, the tendons shall be retensioned to the stress level measured at the lift-off reading (and changes in shim thicknesses shall be recorded) and then checked by a final lift-off reading. The tendon elongation during reten-sioning shall be measured.
85 Amendment No. 18
3 4.11 PENETRATION ROOM VENTIL\\ TION SYSTEM SURVEILLANCE Applicability Applies to the surveillance of the penetration room ventilation system.
Objective To verify an acceptable IcVel of efficiency and operability of the pene-tration room ventilation systeu.
Specification 4.11.1 At least once per refueling period (not to exceed 18 months) the pressure drop across the combined HEP.i filters and charcoal adsorber banks shall be demonstrated to be less than 6 inches of water at system design flow rate (110%).
4.11.2 Initially and after any maintenence or testing that could affect 1
the air distribution within the penetration room ventilation system, air distribution shall be demonstrated to be uniform within 120%
ac.ross HEPA filters and charcoal adsorbers.
4.11.3 At least once per refueling period (not to exceed 18 months),
automatic initiation of the penetration room ventilation system shall be demonstrated.
l 4.11.4a.
The tests and sample analysis of Specification 3.13.la,b, 6 c. shall be performed initially
- and at least once per re-fueling period (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 chemical release in any ventilation :one communicating with the system.
b.
Cold DOP testing shall also be performed after each complete or partial replacement of the HEPA filter bank or after any struc-tural maintenance on the system housing.
c.
Halogenated hydrocarbon testing shall also be performed after each complete or partial replacement of the charcoal adsorber bank or after any structural maintenance on the system housing.
4.11.5 Each circuit shall be operated at least I hour every month. This j
test shall be considered satisfactory if control board indication verifies that all components have responded properly to the actu-ation signal.
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- Initial tests shall be performed within 90 days of the date of l
issuance of Amendment 10 to License No. DPR-51.
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109
s.
3 Bases
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no penetration room ventilation system is designed to collect and process potential reactor building penetration room leakage to minimize environ-mental activity levels resulting from post accident reactor building leaks.
%c system consists of a scaled penetration room, two redundant filter trains and two redundant fans discharging to the unit vent.. The entire system is activated by a reactor building pressure engineered safety features signal' and initially requires no operator action.
Since the systco is not normally operated, a periodic test is required to show that the system is available for its engineered safety features func-tion. During this test the system will be inspected for such things as water, oil, or other foreign material, gasket deterioration in the HEPA units, and unusual or excessive noise or vibration when the fan motor is mnning.
Pressure drop across the combined HEPA filters and charcoal adsorbers of less than 6 inches of water at the system design flow rate will.ndicate that the filters and adsorbers are not clogged by excess.1ve amoun.:s of foreign matter.
Pressure drop should be determined at least once per operating cycle to show system performance capability.
We frequency of tests and sample analysis are necessary to show that the HEPA filters and charcoal adsorbers can perform as evaluated.
Le charcoal adsorber efficiency test procedures should allow for obtaining at least two samples.
Each sample should be at least two inches in diameter and a length equal to the thickness of the bed. Tests of the charcoal adsorbers with halo-genated hydrocarbon refrigerant and of the HEPA filter bank with DOP actusol shall be perfomed in accordance with ANSI N510 (1975) " Standard for Testing of Nuclear Air Cleaning Systems." Any HEPA filters found defective shall be replaced with filters qualified according to Regulatory Position C.3.d. of Regulatory Guide-1.52. Radioactive methyl iodide removal efficiency tests shall be perfomed in accordance with RDT Standard M16-I.T.
If laboratory test r sults are unacceptable, all charcoal adsorbents in the system shall be replaced with charcoal adsorbents qualified according to Regulatory Guide 1.52.
Operation of the system each month for 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> will demonstrate operability of the active system components and the filter and adsorber system.
If significant painting, fire or chemical release occurr such that the HEPA filter or charcoal adsorber could become contaminated from the fumes, chemicals or foreign material, the same tests and sample analysis shall be performed as required for operational use.
Le determination of significant shall be made by the operator on duty at the time of the incident.
Knowledge-able staff members should be consulted prior to making this determination.
109a Amendment No. M 18
m 4.17 IUl!I. !!NIDLING ARI!A Vi!Nril.ATION SYSTEM Sill!Vi!ILLANCE Applicability Applies to the surveillance of the fuel handling area ventilation system.
Objective To verify an acceptable level of efficiency and operability of the fuel handling arwa ventilation system.
Specification 4 17.1 At least once per refueling period (not to exceed 18 months) the pressure drop across the combined HEPA filters and charcoal adsorber banks shall be demonstrated to be less than 6 inches of water at system design flow rate (110%).
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4.17.2 Initially and after any maintenance or testing that could affect the air distribution within the fuel handling area ventilation system, air distribution shall be demonstrated to be uniform within 20% across.HEPA filters and charcoal adsorbers.
4.17.3a.
The tests and sample analysis of Specification 3.15.1.a,b,4 c.
shall be performed within 720 system operating hours prior to irradiated fuel handling operations in the auxiliary building, and prior to irradiated fuel handling in the auxiliary build-ing following significant painting, fire or chemical release l
in any ventilation zone communicating with the system.
b.
Cold DOP testing shall also be performed prior to irradiated fuel handling in the auxiliary. building after each complete or partial replacement 'of a HEPA filter bank or after any structural maintenance on the system housing.
Halogenated hydrocarbon testing shall also be performed prior c.
to irradiatec fuel handling,in the auxiliary building after each compic'.i or partial replacement of a charcoal adsorber v
bank or after any structural maintenance on the system housing.
'Ihe system shall be operated for at least 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> prior to initia-4.17.4 tion of irradiated fuel hand 1 Bases t
l Since the fuel' handling area ventilation system may be in operation when fuel is stored in the pool but not being handled its operability must be verified before handling of irradiated fuel. Operation of the system for 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> before irradiated fuel handling operati'ons and performance of Specification j
4.17.3 will demonstrate operability of the active system components and the filter and adsorber systens.
110f Amendment No.
18
s Pressure drop across the combined HEPA filters and charcoal adsorbers of less than 6 inches of water at the system da Ign flow rate will indicate that the filters and adsorberJ tre not clogges tv excessive amounts of foreign matter.
l{
Pressure drop should ~;
de::-rmined at. east once per refueling period to show system performance ca Clity.
We frequency of tests and sair,. analysis are necessary to show that the HEPA filters and charcoal adsorocrs can perfom as evaluated.
%e c~narcoal adsorber efficiency test procedures should allow for obtaining at least two samples.
Each sample should be at least two inches in diameter and a icngth equal to the thickness of the bed. Tests of the charcoal adsorbers with halogenated hydrocarbon refrigerant and of the HEPA filter bank with DOP aerosol shall be performed in accordance with ANSI N510 (1975) " Standard for testing of Nuclear Air Cleaning Systems." Any HEPA filters found defective shall be replaced with filters qualified according to Regulatory Position C.3.d. of Regulatory Guide 1.52.
Radioactive methyl iodide removal efficency tests shall be performed in accordance with RDT Standard M16-IT.
If laboratory test results are unaccept;able, all charcoal adsorbents in the system shall be replaced with d.arcoal adsorbents qualified according to Regulatory Guide 1.52.
G 110g Amendment No.
18
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