ML20056H371
| ML20056H371 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 09/07/1993 |
| From: | ENTERGY OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20056H364 | List: |
| References | |
| NUDOCS 9309090205 | |
| Download: ML20056H371 (4) | |
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NPF-38-140 ATTACHMENT A i
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j INSTRUMENTATION l
INCORE DETECTORS i
i LIMITING CONDITION FOR OPERATION I
f 3.3.3.2 The incore detection system shall be OPERABLE with:
1 At least 7!I of all incere detector locations, and a.
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b.
A minimum of two quadrant symmetric incore detector locations per core quadrant.
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An OPERABLE incore detector location shall consist of a fuel assembly containing a fixed detector string with a minimum of four OPERABLE rhodium detectors.
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APPLICABILITY: When the incore detection system is used for monitoring:
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a.
AZIMUTHAL POWER TILT, b.
Radial Peaking Factors, c.
Local Power Density, d.
DNS Margin.
j ACTION:
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With the incere detection system inoperable, do not use the system for the above applicable monitoring or calibration functions.
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b.
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:
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 a.
and at least once per 7 days thereafter when required for monitoring the AZIEITHAL 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.
WATER 0RD - UNIT 3 3/4 3-34 Amendment No. 70
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i NPF-38-140 i
ATTACHMENT B s
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INSTRUMENTATION INCORE DETECTORS 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 detectors.
APPLICABILITY: When the incore detection system is used for conitoring:
a.
AZIMUTHAL POWER TILT.
b.
Radial Peaking Factors.
1 c.
Local Power Density.
d.
DNB Margin.
ACTION:
l a.
With the incore detection system inoperable do not use the system for the above applicable monitoring or calibration functions.
b.
The provisions of Specifications 3.0.3 and 3.0.4 are not applicable.
SURVEILLANCE RE0'JIREMENTS 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 and at least once per 7 days thereafter when required for monitoring the AZIMUTl%L POWER TILT. radial peaking factors, local power density or DNB margin:
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At least once per 18 months by perfonnance of a CHANNEL CALIBRATION operation which exempts the neutron detectors but includes all electronic components.
l The neutron detectors shall be calibrated prior to installation in the reactor I
core.
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- For the remainder of fuel cycle 6 the incore detection system may be considered OPERABLE with < 75% and 2 50% of all incore locations provided the appropriate penalties are applied i
WATERFORD - UNIT 3 3/4 3-34 AMENDMENT N0.70 J
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