ML20034F503
| ML20034F503 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 03/01/1993 |
| From: | SOUTHERN CALIFORNIA EDISON CO. |
| To: | |
| Shared Package | |
| ML20034F495 | List: |
| References | |
| NUDOCS 9303030321 | |
| Download: ML20034F503 (8) | |
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ATTACHMENT A i
Existing Specifications Unit 2 l-l 9303030321 930301 PDR ADOCK 05000361 I
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INSTRUMENTATION
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INCORE DETECTORS i
LIMITING CONDITION FOR OPERATION 3.3.3.2 The incore detection system shall be OPERABLE with:
a.
At least 75% of all incore detector locations, and b.
A minimum of two quadrant symetric incore detector locations per core quadrant.
An OPERABLE incore detector location shall consist of a fuel assembly containing a fixed detector string with a minimum of four OPERABLE rhodium l
detectors.
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APPLICABILITY: When the incore detection system is used for monitoring:
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AZIMUTHAL POWER TILT, b.
Radial Peaking Factors, c.
Local Power Density,
[,j d.
DNB Margin.
ACTION:
With the incore detection system inoperable, do not use the system for the above applicable monitoring or calibration functions.
The provisions of Specifications 3.0.3 and 3.0.4 are not applicable.
SURVEILLANCE REOUIREMENTS 4.3.3.2 The incore detection system shall be demenstrated OPERABLE:
a.
By performance of a CHANNEL CHECK within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to its use if 7.or more days have elasped since the previous check and at least once per 7 days thereafter when required for monitoring the AZIMUTHAL POWER TILT, radial peaking factors, local power density or DNB margin:
b.
At least once per 18 months by performance of a CHANNEL CALIBRATION l
operation which exempts the neutron detectors but includes all I
electronic components. The neutron detectors shall be calibrated i
prior to installation in the reactor core.
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SAN ONOFRE-UNIT 2 3/4 3-41 AMENDMENT NO. 100 1
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i ATTACHMENT B Existing Specifications-T Unit 3 i
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f IWCTDUMENTATION n
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'INCORE DETECTORS p
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LIMITING CONDITION FOR OPERATION f
E 3.3.3.2 The incere detection system shall be OPEPABLE with:
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At least 75% of all incere detector locations, and a.
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A minimum of two quadrant sy: metric incore detector locations per
?J core quadrant.
t An OPERABLE incore detector location shall consist of a fuel assembly A
containing a fixed detector string with a minimum of four OPERABLE rhodium detectors.
APPLICABILITY: When the intore detection system is used for monitoring:
a.
AZIMUTHAL POWER TILT, b.
Radial Peaking Factors, c.
Local Po er Density,
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d.
DNB Margin.
ACTION:
With the intore detection systc: i.cperaMc, do not use the system for the above applicable r.onitoring or calibration functions. The provisions of Specifications 3.0.3 and 3.0.4 are not applicable.
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SURVEILLANCE RE0VIREMENTS
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4.3.3.2 The incore detection system shall be demonstrated OPERABLE:
By performance of a CHANNEL CHECK within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to its use if a.
i 7 or more days have elapsed since the previous check and at least once per 7 days thereafter when required for monitoring the AZIMUTHAL POWER TILT, radial peaking factors, local power density or DNB sargin:
I b.
At least once aer 18 months by performance of a CHANNEL CALIBRATION
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operation whici exempts the neutron detectors but includes all j
electronic components.
The neutron detectors shall be calibrated g
prior to installation in the reactor core.
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SAN ONOFRE - UNIT 3 3/4 3-41 AMENDMENT NO. 89 In
i ATTACHMENT C l
Proposed Specifications Unit 2 i
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INSTRUMENTATION INCdREDETECTORS l
LIMITING CONDITION FOR OPERATION 3.3.3.2 The incore detection system shall be OPERABLE with:
a.
At least 75% of all incore detector locations, and l
b.
A :inimum of two quadrant sy= tric incere detecter lccaticaw core quadrant. Atjleasti:75% oflalliincore'detectorsTwith atlleast
' nelincoreTdetector inieagh ;quadrantiatTeachlevelfand o
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SufficientloperabicEincoreldetectors5to' perfomTatileasti:six~ tilt estimates 1with at least one;tiltLestimateLat:each(of Lthree levels; T
An OPERABLE incore detector location shall consist of a fuel assembly containing a fixed detector string with a minimum of few three OPERABLE rhodium detectors.
ATtiltlestimateican bef madelfrom two setsioffsymmetric/ pairs offin~ core r
i detectors W Two1 sets ? ofj simmet ri c ; pai rs t o fii ncore: detectors !a rej fomed s by (two pairs of diagonally 4 opposite (symmetric?incoreidetectorsione incore? detector c
pelr[ quad _ranlt; APPLICABILITY: When the incore detection system is used for monitoring:
a.
AZIMUTHAL POWER TILT, b.
Radial Peaking Factors, c.
Local Power Density, d.
DNB Margin.
ACTION:
With the incore detection system inoperable, do not use the system for the above applicable monitoring or calibration functions.
The provisions of Specifications 3.0.3 and 3.0.4 are not applicable.
SURVEILLANCE REQUIREMENTS 4.3.3.2 The incore detection system shall be demonstrated OPERABLE:
a.
By performance of a CHANNEL CHECK within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to its use if 7 or more days have elapsed since the previous check and at least once per 7 days thereafter when required for monitoring the AZIMUTHAL POWER TILT, radial peaking factors, local power density or DNB margin:
b.
At least once per 18 months by performance of a CHANNEL CALIBRATION operation which exempts the neutron detectors but includes all electronic components. The neutron detectors shall be calibrated prior to installation in the reactor core.
SAN ON0FRE-UNIT 2 3/4 3-41 AMENDMENT NO.
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j ATTACHMENT D Proposed Specifications i
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INSTRUMENTATION INCdREDETECTORS LIMITING CONDITION FOR OPERATION 3.3.3.2 The incore detection system shall be OPERABLE with:
a.
At least ~'5% of all incore detector locations, and b.
? :ini= cf two quadrant sy=ctric incere detecter locations per core quadrant. At:E l ea st'f75%;To fTal.15 i ncore?detec to Fs Ni thia t?l ea stione i nco rei de tector ti nleac h jua d[pnt[atjj3ch}1 evel y a n.d '
c.
Sufficient 7operablesincorej dete'etorsitf perfom?atileastTsikitilt estimatestwith;atllea,strone:tiltiestimatecatEeach?of.!three levels?.
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u An OPERABLE incore detector location shall consist of a fuel assembly containing a fixed detector string with a minimum of -few three OPERABLE rhodiuin detectors.
A ; til t7 estimate:ilca n ? be~ mad ei fromitwdTsets Tof [:symmetri c"ca i rs ? o ff i n_ core Edetecto rs L TwolsetsJof; symmetric pairsiofiincoreidetsctorsiarelfomed;byFtwoipairsiof" di agonal l yj oppos i te @ymme tri c [ i nco re jetec to rsione j nco re ~ det' ecto p perlg u adra n t!
APPLICABILITY: When the incore detection system is used for monitoring:
a.
AZIMUTHAL. POWER TILT, b.
Radial Peaking Factors, c.
Local Power Density, d.
DNB Margin.
ACTION:
With the incore detection system inoperable, do not use the system for the above applicable monitoring or calibration functions. The provisions of Specifications 3.0.3 and 3.0.4 are not applicable.
SURVEILLANCE RE0VIREMENTS 4.3.3.2 The incore detection system shall be demonstrated OPERABLE:
a.
By performance of a CHANNEL CHECK uithin 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to its use if 7 or more days have elapsed since the previous check and at least once per 7 days thereafter when required for monitoring the AZIMUTHAL POWER TILT, radial peaking factors, local power density or DNB margin:
b.
At least once per 18 months by performance of a CHANNEL CALIBRATION operation which exempts the neutron detectors but includes all electronic components. The neutron detectors shall be calibrated prior to installation in the reactor core.
SAN ON0FRE-UNIT 3 3/4 3-41 AMENDMENT NO.