ML19260A951
| ML19260A951 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 11/27/1979 |
| From: | Dromerick A Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7912060186 | |
| Download: ML19260A951 (6) | |
Text
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MEETIllG
SUMMARY
DISTRIBUTION Docket Filed" J. Knight NRC PDR
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S. Hanauer Loca' PDR R. Tedesco TIC R. Bosnak
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NRR Reading S. Pawlicki
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"J LWR #3 File F. Schauer H. Denton K. Kniel
__.g E. Case T. Novak H. Berkow Z. Roxztoczy D. Ross W. Butler D. Vassallo V. Benaraya D. Skovholt R. Satterfield J. Stolz V. Moore R. Baer W. Kreger
- 0. Parr M. Ernst L. Rubenstein F. Rosa S. Varga R. Denise C. Heltemes EP Branch Chief W. Haass G. Chipman R. Houston J. Collins L. Crocker T. Murphy B. Kirschner G. Lear F. Williams B. Youngblood R. Mattson R. Jackson R. DeYoung L. Hulman Project Manager A. W. Dromerick Attorney, ELD NRC
Participants:
R M. Rushbrook T. Dunning IE (3)
V. Thomas ACRS (16)
J. Burdoin R. Denise D. Sullivan D. Lasher BCC: Applicant & Service List R. Stevens F. Orr E. Butcher 1510 314 7912060/FC
NOV 2 71979 Docket No. 50-339 APPLICANT:
Virginia Electric and Power Company FACILITY:
North Anna Power Station, Unit 2
SUBJECT:
SuttMARY OF NOVEMBER 20, 1979 MEETING TO DISCUSS MATTERS RELATED TO THE ENVIRONMENTAL QUALIFICATIONS OF ELECTRICAL EQUIPMENT AS IT RELATES TO THE NORTH ANNA POWER STATION, UNIT 2 We met with representatives of the Virginia Electric and Power Company to discuss matters related to the environmental qualifications of the Rose-mount Model 1152 Differential Pressure Transmitters used at the North Anna Power Station, Unit 2.
A list of atteadees is presented in the enclosure.
Significant points discussed are summarized below:
1.
VEPC0 advised us that because of some of the results obtained by Westinghouse during the last half of 1976, while conducting the sensor Qualification Program, VEPC0 undertook with the cooperation of Westing-house and Rosemount Inc. to test Model 1152 Differential Pressure Transmitters operational performance under the Westinghouse Trip and Severe Environment Test requirements.
The Rosemount flodel 1152 transmitters had previously been tested satisfactorily for all environmental condition.e except for chemical spray during the temperature-pressure severe environment tests and the differences in the test envelope. They indicated that previous test information is contained in Rosemount Report No. 117415.
2.
VEPC0 indicated that tests were performed on two different groups of Rosemount production Model 1152 transmitters at different times, each group consisted of three transmitters.
Description of the units are as follows:
1510.315
=
.=
Rosemount Transmitter Electric Housing Model No.
Serial No.
Range Material GROUP I ll52DP6A22PB 53907 0-20 PSID Aluminum with baked enamel finish ll52DP6A22PB 53908 0-20 PSID Aluminum with baked enamel finish ll520P6A22PB 53909 0-20 PSID Aluminum with baked enamel finish GROUP II
'152DP6A92PB 68460 0-100 PSID Stainless steel ll52DP6A92PB 68461 0-100 PSID Stainless steel ll52DP6A92PB 68462 0-100 PSID Stainless steel 3.
VEPC0 indicated that two of the three Model 1152 transmitters in Group I failed approximately 43 hours4.976852e-4 days <br />0.0119 hours <br />7.109788e-5 weeks <br />1.63615e-5 months <br /> into the test. Their evaluation showed the cause to be the failure of plastic pack diodes used as polarity protectors for the electronic cards.
The Group II transmitters were later tested using glass pack diodes and stainless steel housings. All three Group II transmitters successfully completed the 15 day trip and severe environmental test. Radiation effects were not taken into account in this test.
VEPC0 further indicated that the test data shows the maximum transmitter error early in the test was approximately 55 minutes into the test and was approximately -8.0 percer.t. One transmitter had an error of -14 percent at 13 days, but the other two transmitters indicated less than 2 percent error at that time.
4.
VEPC0 indicated that EYS connectors were used in the installed test apparatus.
We advised VEPC0 that they should submit additional informa-
. tion which would describe these connectors. We also indicated to VEPC0 1510 316
4,
. NOV 271979 that we would in the very near future advise them of our position regard-ing the testing of the Rosemount Model 1152 differential pressure transmitters.
Oricinni cigned tiy A.Yi.Dromorick,
A. W. Dromerick, Project Manager Light Water Reactors, Branch tio. 3 Division of Project Management
Enclosure:
As Stated cc: See flext Page hShkff*
JJ 1510 317
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fir. W. L. Prof fitt Senior Vice President - Power Operations Virginia Electric 5 Pover Company P. O. Box 26666 Richmond, Virginia 23261 cc: Mr. Anthony Gambaradella Cl arence T. Ki pps, Jr., Esq.
Office of the Attorney Ceneral IMO Pennsyl vania Avenue, N.W.
11 South 12th Street - Room 308
.i ngton, D. C.
20006 Richnond, Virginia 232 19 Carroll J. Savage, Esq.
Richard M. Foster, Esq.
1700 Pennsyl vania Avenue, N.W.
211 Stribling Avenue Washington, D. C.
20006 Charlottesville, Virginia 22903 Mr. Jcnes C. Dunstan Michael W. Maupin, Esq.
State Corporation Commission Hunton, Williams, Gay & Gibson Contont.ealth of Vi rginia P. O. Eox 1535 Blandon Building Ri chmond, Vi rginia 23212 Richmond, Vi rginia 23209 Mrs. June Allen Alan S. Posenthal, Esq.
412 Owens Drive Atomic Safety and Licensing Appeal feard ibntsville,.Tlabama 35801 U.S. Nuclear Regulatory Conaission Washington,D. C.
20555 Fr. James Torson 501 Leroy Michael C. Farrar, Esq.
Socorro, f;ew Fexico 87801 Atcmic Safety and Licensing Appeal Board U.S. Nuclear Regulatory Conaission Mrs. Fargaret Dietrich Washington, D. C.
20555 Route 2, Box 568 Gordonsville, Vi rginia 22942 Dr. John H. Buc k Atomic Safety and Licensing Appeal Eoard Willi an H. Rodgers, Jr., Esq.
U.S. Nuclear Pegulatory Coaaission Georgetov.n University Law Center Washington, D. C.
20555 600 New Jersey Avenue, N.W.
Washington,D. C.
20001 Atomic Safety and Licensing Board Panel U.S. Nuclear Regulatory Canaission Mr. Peter S. Hepp Washington, D. C.
20555 Executive Vice President Sun Shipping & Dry Dock Company Mr. Michael S. Kidd P. O. Box 540 U.S. Nuclear Regulatory Ccanission Chester, Pennsylvania 19013 P. O. Box 128 Spotsivania, Vi rginia 22553 Mr. R. B. Briggs Associate Director Dr. Paul W. Purdom 110 Evans Lane Department of Civil Engineering Oak Ridge, Tennessee 37830 Drexel University Philadel phia, fennsyl, vania 19104 1510 3;g
Mr. W. L. Proffitt cc:
Dr. Lawrence R. Quarles Apartment tio. 51 Kend a l-a t-Long wood Kennett Square, Pennsylvania 1934S Mr. Irwin B. Krcot Citizens Energy Forum P. O. Box 138 McLean, Vi rginia 22101 James B. Dougherty, Esq.
Potomac Alliance 1416 S Street, i;.W.
Washington, D. C.
20009 1510 519
ENCLOSURE ATTENDAf(CE LIST NORTH ANNA POWER STI, TION, UNIT 2 MEETING NOVEMBER 20, 1979 VE PC,0 NRC E. S. Grecheck A. W. Dromerick G. L. Pannell T. G. Dunning J. M. Davis V. D. Thomas J. Burdoin D. Sullivan D. R. Lasher R. W. Stevens F. Orr E. Butcher 1510 320
.