IR 05000270/1973016
| ML19317D341 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 11/28/1973 |
| From: | Jape F, Murphy C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19317D329 | List: |
| References | |
| 50-270-73-16, NUDOCS 7911270562 | |
| Download: ML19317D341 (4) | |
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UNITED STATES
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ATOMIC ENERGY COMMISSION
I DIRECTORATE OF REGUIATORY OPERATICUS
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RO Inspection Report No. 50-270/73-16 Licensee:
Duke Power Company Power Building 422 South Church Street j
Charlotte, North Carolina 28201 Facility Name: Oconee Unit 2 Docket No.:
50-270 License No.:
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Category :
B2 Location: Seneca, South Carolina
Type of License: B&W, PWR, 2568 Mw(t)
Type of Inspection:
Special, Announced l
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Dates of Inspection: November 5-6, 1973, and November 9-11, 1973 Dates of Previous Inspection: September 13-14, 1973, October 3,1973, and October 23-26, 1973 4(1 et!q)
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- ~ 1 E-D Principal Inspectory F. Jape, Reactor IrO!pedtor, Facilities Test Date and Startup Branch Accompanying Inspector: None Other Accompanyir.g ?ersonnel: None -
Reviewed by:_
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//dth 7 C. E. Murph)k, Chief,fFadilities Test and Startup Branch
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RO Rpt. N3. 50-270/73-16 2-
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I.
Enforcement Action A.
Violations
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. None
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Safety Items
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II.
Licensee Action on Previously Identified Enforcement Matters A.
Violations Not inspected.
B.
Safety Items I
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III. New Unresolved Items
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IV.
Status of Previously Reported Unresolved Items Not inspceted.
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V.
Unusual Occurrences None VI.
Other Significant Findings Initial Critical Oconee Unit 2 achieved initial critical on November 11, 1973.
The
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inspector verified that the prerequisites for initial critical were
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completed.
Initial critical was achieved by control rod withdrawal
and boron dilution._ The inspector witnessed the approach to critical
which was conducted in a safe and orderly manner and in accordance
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with the test procedure, 1SAR, technical specification and licensee requirements.
(Details, paragraph 3)
VII. Management Interview
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A management interview was held on November 11, 1973, with L. E. Schmid.
j and J. E. Smith. The following items were discussed.
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Ito Rpt. No. 50-270/73-16-3-
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The inspector stated that he had witnessed portions of IP 330/3A, i
" Rod Drop Time Test," and had no questions or comments, f
B.
Initial Critical i
The inspector stated that he had witnessed initial critical
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and had no questions or comments.
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RO Rp t. No. 50-270/73-16-1-
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DETAILS Prepared by:
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"b F. Jape, Reactor In'spector Date Facilities Test and Startup Branch I
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Dates of Inspection: November 5-6, 1973 and November 9-11, 1973 Reviewed by: [.
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C. ~E. Murph),, Chief /
/Dats Facilities Test add Startup Branch 1.
Individuals contacted Duke Power Company (DPC)
J. E. Smith - Plant Superintendent J. W. Hampton - Assistant Plant Superintendent L. E. Schmid - Operating Engineer D. Rogers - Junior Engineer G. A. Ridgeway - Assistant Shift Supervisor N. F. Edwards - Assistant Shift Supervisor (^
M. D. Kimray - Assistant Shift Supervisor
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A. O. Farabee - Junior Engineer H. R. Lowery - Shift Supervisor Babcock and Wildox (B&W)
T. Childress - Engineer 2.
General
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The special, announced inspection of November 5 and 6,1973, was conducted to witness IP 330/3A, " Rod Drop Time Test." The special
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announced inspection of November 9-11, 1973, was conducted to
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determine that the prarequisites for initial critical had been fulfilled and to witness the achievement of initial critical.
3.
Rod Drop Time Test The inspector witnessed performance of several portions of IP 330/3A,
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" Rod Drop Time Test." The test was conducted as prescribed by the procedure and the inspector had no questi'ons or comments. The test l
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RO Rpt. No. 50-270/73-16-2-
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was run at operating pressure and temperature of 2155 psig and 532' F with fcur reactor coolant pumps running.
The drop times measured
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for all rods were within the acceptance criteria.
l 4.
Initial Critical Initial critical of Oconee Unit 2 was achieved at 2:10 p.m. on November 11, 1973.
Criticality was achieved by control rod with-drawal and baron dilution at a controlled rate with the reactor coolant system at 800 psig and 300* F.
Two independent inverse
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multiplication plots were maintained throughout rod withdrawal and deboration.
The approach to critical was conducted as prescribed in TP 710/1,
"Zero Power Physics Test."
Initial critical was reached with the
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rods positioned as specified in the procedure and within the predicted boron concentration.
l The inspector verified that the limits and precautions, the prerequisite tests, the required unit status, and the prerequisite system conditions as prescribed in TP 710/1, "Zero Power Physics Test", were met. All steps in the procedure were signed off as they were completed as required by DPC operational quality assurance manual.
The inspector also verified the following:
The source range instrumentation was responding with about a.
2 cps.
b.
The high flux trips for the four RPS/NI channels had been reset to 0.5% full power.
The source range nuclear instrument channels responded to an c.
external neutron source.
d.
The precritical tests had been completed and the results accepted by DPC.
e.
The startup checklists had been completed.
f.
Control rods were operable and scram response was within technical specification limits.
g.
Boron sample analysis were conducted expeditiously throughout the approach to critical.
The inspector had no comments or questions pertaining to the conduct and results of the test.
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