ML18037A279
| ML18037A279 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 08/05/1980 |
| From: | Rhode G NIAGARA MOHAWK POWER CORP. |
| To: | |
| References | |
| NUDOCS 8008120538 | |
| Download: ML18037A279 (6) | |
Text
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REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION NBR:8008120538 DOC ~ DATE: 80/08/05 FACIL:50-010 Nine Mile Point Nuclear, St'ationE AUTH.NAME AUTHOR AFFILIATION RHODEPG.K.
Niagara Mohawk Power Corp.
RECIP ~ NAME RECIPIENT AFFILIATION NOTARIZED; NO DOCKET Unit 2F Niagara Moha 05000410
SUBJECT:
Final deficiency rept re environ L seismic qualifications of electrica) equipment. During avdit of steam supply sysg found. qualification documentation in wrong filch Steam supply sys will be modified to cross-ref records.
DISTRI8UTION CODE:
SOI9S COPIES RECEIVED:LTR J ENCL j SIZE:
TITLE: Construction Deficiency Report (10CFR50
~ 55E)
NOTES'EC IP IENT ID CODE/NAME ACTION:"
A/D LICENSNG 21 RUSHBROOKPM ~
20 INTERNAL: AD/RCI/IE D/DIR HUM FAC S
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EDO L STAFF 07 IEE 05 MPA 08 OELD 23 QA BR, 10 RUTHERFORD F W ~ IE "EXTERNAL: ACRS 2P NSIC 00 C,OP IES LTTR ENCL 1
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14 AEOD DIREHUM FAC SFY EQUIP QUAL BR16 LIC QUAL BR NRC PDR 02 PROC/TST REV BR G FI 01 S
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NIAGARAMOHAWKPOWER CORPORATION/300 ERIE BOULEVARDWEST, SYRACUSE, N.Y. 13202/TELEPHONE (315) 474-1511 August 5, 1980 Office of Inspection and Enforcement Region I Attention:
Mr. R. T. Carlson Reactor Construction and Engineering Support Branch U.S. Nuclear Regulato'ry Commission 631 Park Avenue King of Prussia, Pennsylvania 19406
Dear Mr. Carlson:
Re:
Nine Mile Point Unit 2 Docket No. 50-410 On April 10, 1980, your staff was informed by -telephone of a potential reportable deficiency in accordance with 10CFR50.55(e).
This deficiency concerns the environmental and seismic qualifications of some electrical equipment to be used at Nine Mile Point Unit 2.
In accordance with paragraph 50.55(e)(3) of the Commission's Regulations, attached is a final report which provides a description of the deficiency, an analysis of the safety.'mplicationsand the corrective action taken.
Very truly yours, NIAGARA M WK POWER CORPORATION PEF/kmb Attachment c..~.:
Gerald K./Rhode Vice President System Project Management cc:
Director of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555
FINAL REPORT t t'i tel
. ()
f Qualification of Electrical E ui ment Descri tion of the Deficienc Qualification Lackin During an audit of our nuclear steam supply system Vendor conducted the week of March 26, 1980, no evidence (lack of documentation) was found to indicate that the three electrical instruments indicated below were adequately qualified:
Instrument MPL No.
Conductivity Element E12-N001 Level Transmitter E12-N008 Rosemount Model 1151DP E12-N058 Differential Pressure Transmitter Environmental and Seismic Environmental and Seismic Environmental Test Incomplete II.
Subse uent Findin s and Corrective Action As indicated in our interim report dated May 12, 1980 for the Rosemount Model 1151DP differential pressure transmitter, an additional search of
'he qualification records following the audit located the qualification documentation in another record file.
To prevent the recurrence of being unable to retrieve documentation in a timely manner, the nuclear steam supply system Vendor's Quality Assurance Program is being modified to cross-reference qualification records and vendor-supplied documentation.
Regarding conductivity element E12-N001 and level transmitter E12-N008, it has been determined that no corrective action is required.
These instruments are considered to be passive and are not required to function either during or after a design basis accident.
Since a
failure analysis shows that an electrical short circuit or open circuit in the instrument can damage the power source, no additional qualification is required.
III.
Anal ses of the Safet Im lications The electrical instruments have been shown to be adequately qualified to satisfy their intended design function.
Therefore, this condition could not have adversely affected the safety of operation of Nine Mile Point Unit 2 at anytime throughout its expected lifetime.