ML20024G018
| ML20024G018 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 12/14/1990 |
| From: | Wilson B NRC Office of Inspection & Enforcement (IE Region II) |
| To: | Kingsley O Tennessee Valley Authority |
| References | |
| NUDOCS 9012270242 | |
| Download: ML20024G018 (5) | |
Text
'
g December 14, 1990 Docket Nos. 50-327, 50-328 License Nos. DPR-77, DPR-79 Mr. Oliver D. Kingsley, Jr.
Senior Vice President, Nuclear Power Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801
Dear Mr. Kingsley:
SUBJECT:
ELECTRICAL DISTRIBUTION SYSTEM FUNCTIONAL INSPECTION AT SEQUOYAH NUCLEAR PLANT This letter confirms the dates of January 14-18, January 28 - February 1 and February 11-15, 1991, for the Electrical Distribution System Functional Inspection (EDSFI) at Sequoyah Nuclear Plant.
These dates were established during a telephone conversation between Ms. Marcy Cooper of the Sequoyah Staff and C. Julian of this office on December 7, 1990.
The week of January 14-18, 1990, will be for preparation and plant familiarization by the NRC inspection team.
The remaining two weeks will be-devoted to inspection activities.
The team will consist of approximately seven (7) inspectors.
It is r9 quested that the management entrance meeting be scheduled for 1:30 p.m.
on January 14, 1991, and the exit meeting scheduled for 10:00 a.m. on February 15, 1991.
The inspection will take place at the plant site.
If possible, sufficient work space should be provided to accommodate both the NRC team members and interfacing licensee personnel.
The objective of this inspection is to assess 7he present configuration of the offsite and onsite electrical power systems capability to sustain loads as required to support the safe operation of the plant.
Accordingly, for this inspection, it is requested that the following documentation be-made available at the site.
Documentation denoted by an
- should be available at the designated work area.
Other documentation should be readily retrievable at the site.
- 1.
As-built electrical drawings for all AC and DC voltage levels (one line diagrams preferred)
- 2.
Calculations / analyses supporting plant electrical system design a.
Grid voltage stability b.
Short-circuit currents, AC and DC c.
Voltage regulation and relay setpoints, AC and DC 9012270242 901214 R
ADOCK 0500 7
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r December 14, 1990 Mr. Oliver D.Kingsley, Jr.
2 d.
Coordination of overcurrent protection -(circuit breakers, relays, fuses) e, Cable-ampacity f.
Electrical design computer _ program -users manual applicable to your plant g.
Validation of those computer codes h.
Index of calculations.
- 3.
Load sequencing analysis including load calculations b.'
Voltage transient analysis including calculations c.
= Support systems (fuel and air) design bases and calculations i
d.
Protective relays 4
- Electrical modification packages (index and Summary) a.
Drawings b.
Calculations c.-
Other supporting documents
~
5.
125v/250v Station battery a.
Load profile b.
,rault current : analysis (included.in 2.b.)
c.
Coordination of overcurrent prote'ction (included in 2.d.)
6.
0ther related documentation / Procedures applicable to your plant-i
. - Applicable portions of ' FSAR a.
J b.
IEEE standards-c.
Design control
- d..
Engineering interfaces 5
- Sufficient licensee : personnel, knowledgeable in the above areas, should 'be available to support the' inspection effort.
Your. cooperation during this inspection.'wille be appreciated..Should you have any questions regarding this.
f nspection, plene contact C. Julian at -404/331-5585 i
Sincerely,.
Original signed by Bruce A. Wilson Bruce.A. Wilson, Chief TVA Projects cci -(See page 3) o
-(
r
i Mr. Oliver D. Kingsley, Jr.
3 Decemb'er 14, 1990 cc:
M. Runyon, Chairman Tennessee Valley Authority ET-12A /A 400 West Summit Hill Drive Knoxville, TN 37902 J. 8. Waters, Director Tennessee Valley Authority ET 12A-9A 400 West Summit Hill Drive Knoxville, TN 3790%
W. F. Willis Chief Operating Officer ET 12B 16B 400 West Summit Hill Drive Knoxville, TN 37902
- 0. Nunn, Vice President Nuclear Projects
'1101 Market' Street' 6A Lookout Place Chattanotga, TN 37402-2801-Dr. M. O. Medford Vice President, Nuclear Assurance, i
. Licensing and Fuels
- Tennessee. Valley Authority 6N 38A Lookout Place.
Chattanooga, TN -37402-2801.
- County Judge-Hamilton. County Courthouse Chattanooga,-TN 37402 C. A. Vondra,' Plant Manager Sequoyah Nuclear Plant-Tennessee Valley _ Authority P
0.' Box 2000 Soddy-Daisy,tTN 37379 i
E. G. Wallace, Manager
~
Nuclear Licensing and
-Regulatory Affairs
' Tennessee Valley Authority SN 1578 Lookout Place Chattanooga,-TN 37402-2801 (cc cont'd - see page - 4) i 2
r.-
~ Mr. Oliver D. Kingsley, Jr.
4 December 14, 1990 (cccont'd)
M. Cooper Site Licensing Manager Sequoyah Nuclear Plant P. 0.-Box 2000 Soddy-Daisy, TN 37379
- TVA Representative Rockville Office 11921 Rockville Pike Suite 402 Rockville, MD 20852 General Counsel Tennessee Valley Authority 400 West Summit Hill Drive ET 118 33H Knoxville, TN 37902 Michael H. Mobley, Director Division-of Radiological Health T.E.R.R.A.:But_lding, 6th Floor 150 -9th Avenue North Nashville, TN 37247-3201' J. Wilson, Site Vice President Sequoyah Nuclear P1 ant Tennessee Valley Authority P. O. Box:2000 Soddy-Daisy, TN 37379 bec:
S. D. Ebneter, RII
.B. A. Wilson, TVAP/Ril-W. S. Little, TVAP/RII J. B. Brady, TVAP/RII J. Rutberg, 000 J
N. Donohew, NRR-
,A. F. Gibson, DRS/RII l-L. A. Reyes, DRP/RII l
E. W. Merschoff, DRP/RII W. D. Lanning, NRR E. V. Imbro, NRR' M.'O. Hunt, DRS/Ril Il riweather, DRS/RII l
ocument Control Desk (bcc cont'd - see page 5) 4
C.
Mr. Oliver D. Kingsley, Jr.
5 December 14, 1990 (bec cont'd) ilRC Resident Inspector U.S. Nuclear Regulatory Conmission 2600 Igou Ferry Soddy-Daisy, TN 37379 l
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