ML19319B967

Power Ascension Testing for Removal of Burnable Poison Rod Assemblies & Orifice Rod Assemblies.

ML19319B967
Person / Time
Site:	Davis Besse
Issue date:	06/08/1978
From:	TOLEDO EDISON CO.
To:
Shared Package
ML19319B964	List: ML19319B963 ML19319B966 ML19319B967
References
PROC-780608, NUDOCS 8001290700
Download: ML19319B967 (2)

Text

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) Docket No. 50-346

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Operating License No. NPF-3 Serial No. 443 June 8, 1978 POWER ASCENSION TESTING FOR REMOVAL OF BURNABLE POISON ROD ASSEMBLIES AND ORIFICE ROD ASSEMBLIES AT DAVIS-BESSE UNIT NO. 1 Following the removal of the burnable poison rod assemblies and the orifice rod assemblies at Davis-Besse Nuclear Power Station Unit No. 1, Toledo Edison agrees to perform the following additional testing:

1. TP-800.00 Power Escalation Sequences Procedure will be =cdified for new test program

2. TP-800.02 Nuclear Instrumentation Calibration at Power Perform Phase II of the test verification of correct thermal power level and axial power and balance.

3. TP-800.05 Reactivity Coefficients at Power Perform at hot zero power and approximately 100% full power.

Values at each level should be extrapolated to full power to verify new predicted valves.

4 TP-800.11 Core Power Distributions Perform at 40%, 75% and 100%. Values at each power level will be extrapolated to full power to verify new predicted values.

The test procedure linear heat rate limitations are more restrictive than the technical specifications to assure that the technical specifications are met.

5. TP-800.18 Power Imbalance Detector Correlation Test Perform at 40%.

6. TP-800.20 Rod Reactivity Worth Measurements This test will be repeated at 40%, 75%, 100% full power with the new control rod figurations.

7. IP-800.24 Incore Detector Test Software changes will be made for handling incore detector readout signals. The constant and/or correction applied to the detector signal including the method for handling the failed detectors will be addressed in the procedure.

8001290 7 &c

This test will be repeated at 40% full power.

8. TP-800.28 Pseudo Ejected Rod Test This test will be performed at 40% full power.

9. TP-800.31 Vibration and Lose Part Monitor This test will be repeated at each power level to reestablish base line data and as a cocparison to previous data, ihe followiag tests which involve the Integrated Control System (ICS) tuning will be performed as necessary to completc the test program. The ICS tuning has not yet been completed. Some of the testing which has been performed previously is not planned to be repeated at this time.

Since the ICS is not a safe".y related system this testing should not be a restraint to full power seration.

1. TP-800.08 ICS Tuning at Power

2. IP-800.14 Turbine / Reactor Trip Test

3. TP-800.23 Unit Load Transient Test Note that we plan to perform TP-800.05, Reactivity Coefficients at Power at hot zero power and 100% full power only. These levels are being checked to ensure that the calculations which have been performed by the NSSS Vender are correct. At this time we see no reason to expect a change from the original results. If an anomaly is detected at hot zero power we will consider performing this test at 40% and 75%.

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