ML20151V325
| ML20151V325 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 09/08/1998 |
| From: | Wiggins J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Cruse C BALTIMORE GAS & ELECTRIC CO. |
| References | |
| 50-317-98-80, 50-318-98-80, EA-98-371, NUDOCS 9809140241 | |
| Download: ML20151V325 (4) | |
See also: IR 05000317/1998080
Text
September 8, 1998
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EA 98-371
Mr. Charles H. Cruse
Vice President - Nuclear Energy
Baltimore Gas and Electric Company
Calvert Cliffs Nuclear Power Plant
1650 Calvert Cliffs Parkway
Lusby, MD 20657-4702
SUBJECT: WITHDRAWAL OF NOTICE OF VIOLATION
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Dear Mr. Cruse:
This letter withdraws a Notice of Violation issued as part of Inspection Report 50-317;-
318/98 80, dated April 14,1998, regarding test control of post installation testing of the
battery for the 1 A emergency diesel generator (EDG). Your response to the violation in a
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letter dated May 14,1998, stated that " Baltimore Gas and Electric Company denies the
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alleged violation ..., but does acknowledge that the calculation was not easily auditable."
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Based on our subsequent review, we have concluded that your position is correct and have
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decided to withdraw the violation.
Specifically, the violation stated that the testing procedure for the 1 A battery " failed to
incorporate an appropriate acceptance criterion for the battery service test," and that the
acceptance criteria, a test shutdown criterion of 111 volts, differed from calculated
minimum voltages of 117.6 volts on the de.;ign of some associated equipment. Your
letter provided the bases for the apparent voltage discrepancy (differences in cable lengths
of control circuits for the two diesels covered by design calculations).
the test criteria were acceptably supported by subsequent design evaluations and the
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resulting voltage is sufficient to operate the applicable equipment. Your stated corrective
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actions included clariSations on the associated design calculations.
Regardless of the violation's withdrawal, we believe the design control of this testing
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evolution was weak, despite being found to be correct after the f act. We hope your
evaluations will enable future post-installation testing which is more thorough and
thoughtful.
We have reviewed the corrective and preventive actions for the remaining violation, as
documented in your letter, and have found the actions to be appropriate. These actions
will be examined during a future inspection of your licensed program.
9809140241 9so90s
ADOCK 05000317
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We appreciate your cooperation, honesty and understanding in these matters.
Sincerely,
James T. Wiggins, Director
Division of Reactor Safety
Docket Nos. 50-317
50-318
cc:
B. Montgomery, Director, Nuclear Regulatory Matters (CCNPP)
R. McLean, Administrator, Nuclear Evaluations
J. Walter, Engineering Division, Public Service Commission of Maryland
K. Burger, Esquire, Maryland People's Counsel
R. Ochs, Maryland Safe Energy Coalition
State of Maryland (2)
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Distribution:
H. Miller, RA/W. Axelson, DRA (1)
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D. Screnci, PAO
Nuclear Safety Information Center (NSIC)
PUBLIC
NRC Resident inspector
Region i Docket Room (with concurrences)
L. Doerflein, DRP
W. Cook, DRP
R.Junod,DRP
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Distribution: (VIA E-MAIL)
B. McCabe, RI EDO Coordinator
S. Stewart - Calvert Cliffs
S. Bajwa, NRR
A. Dromerick, NRR
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M. Campion, RI
Inspection Program Branch, NRR (IPAS)
- R. Correia, NRR
F. Talbot, NRR
DOCDESK
J. Lieberman, OE (OEMAIL)
D. Holody, EO, RI
F. Davis, OE
A. Nicosia, OE
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DOCUMENT NAME: g:\\cmmeb\\meyer\\nov-wd.cc
Ta receive a copy of this document. Indicato in the box: "C" = Copy without attachmerWenclosure
"E" = Copy with attachment / enclosure
"N" = No
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DATE
9/3/98 (fjfAA/
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OFFICIAL RECORD COPY
- See Previous Concurrence Page
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EA 98-371
Charles H. Cruse
[Calvert Cliffs]
Dear Mr. Cruse:
SUBJECT: WITHDRAWAL OF NOTICE OF VIOLATION
This letter withdraws a Notice of Violation issued as part of Inspection Report 50-317;-
318/98-80, dated April 14,1998, regarding test control of post-installation testing of the
battery for the 1 A emergency diesel generator (EDG). Your response to the violation in a
letter dated May 14,1998, stated that " Baltimore Gas and Electric Company denies the
alleged violation ..., but does acknowledge that the calculation was not easily auditable."
Based on our subsequent review, we have concluded that your position is correct and have
decided to withdraw the violation.
Specifically, the violation stated that the testing procedure for the 1 A battery " failed to
incorporate an appropriate acceptance criterion for the battery service test," and that the
acceptance criteria, a test shutdown criterion of 111 volts, differed from calculated
minimum voltages of 117.6 volts on the design of some associated equipment. Your
letter provided the bases for the apparent voltage discrepancy (differences in cable lengths
of control circuits for the two diesels covered by design calculations). You concluded that
the test criteria were acceptably supported by subsequent design evaluations and the
resulting voltage is sufficient to operate the applicablo equipment. Your stated corrective
actions included clarifications on the associated design calculations.
Regardless of the violation's withdrawal, we believe the design cor. trol of this testing
evolution was weak, despite being found to be correct after the fact. We hope your
evaluations will enable future post-installation testing which is more thorough and
thoughtful.
We have reviewed the corrective and preventive actions for the remaining violation, as
documented in your letter, and have found the actions to be appropriate. These actions
will be examined during a future inspection of your licensed program.
We appreciate your cooperation, honesty and understanding in these matters.
Sincerely,
J.T. Wiggins
concurrences:
Meyer
Morris
Holody
Doerflein
Wiggins
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