ML20132B413
| ML20132B413 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 12/09/1996 |
| From: | Shell R TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9612170209 | |
| Download: ML20132B413 (5) | |
Text
.
IUA Tennessee Valley Authonty Post O'tice Bo= 2000. Soddy-Daisy Tennessee 37379 December 9,1996 4
)
U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C.
20555 Gentlemen:
)
In the Matter of
)
Docket Nos. 50-327 Tennessee Valley Authority
)
50-328 SEQUOYAH NUCLEAR PLANT - RESOLUTION OF THERMO-LAG ISSUES - RESPONSE TO i
QUESTIONS FROM NOVEMBER 4,1996 MEETING WITH NRC i
Reference:
NRC Letter to TVA dated November 8,1996," Summary - November 4,1996, Meeting With TVA To Brief The Staff On The Status of Thermo-Lag Fire Barrier Upgrades At Sequoyah" In accordance with the above reference, please find attached TVA's response to questions which were raised during the subject meeting.
Please contact Jim Smith at (423) 843 5672 should you have any questions.
i Sincerely, t
R. H. Shell Manager SQN Site Licensing and Industry Affairs Il Enclosures cc: See page 2
)Q 9612170209 961209 PDR ADOCK 05000327 P
PDR lOUlU!
U. S. Nuclear Regulatory Commission Page 2 December 9,1996 cc:
Mr. R. W. Hernan, Project Manager (Enclosures)
' U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 NRC Resident inspector (Enclosures)
Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy-Daisy, Tennessee 37379-2000 Regional Administrator (Enclosures)
U.S. Nuclear Regulatory Commission Region ll 101 Marietta Street, NW, Suite 2900 i
Atlanta, Georgia 30323-2711
i i
~
SEQUOYAH NUCLEAR PLANT i
ENCLOSURE i
RESPONSE TO ADDITIONAL NRC QUESTIONS ON THERMO-LAG i
2, NRC requested that TVA make the corrective action documents associated with Thermo-Lag available to their inspectors.
i i
t The Sequoyah corrective action documents related to Thermo-Lag are:
SQ930690PER -
Original Problem Evaluation Report (PER) which addressed j
Thermo-Lag deficiencies in NRC Generic Letter 92-08. This PER was closed to another administrative process based on establishment of compensatory measures.
i j
SQ961342PER -
Current replacement Thermo-lag PER issued following review of conditions closed to administrative processes. This PER will j
track Thermo-Lag upgrade to completion.
i SQ950685PER -
Identified problems with lack of Thermo-Lag protection on certain cables. The PER was closed when a design change eliminated j
the need for protection on these cables.
NRC requested a historical breakdown of resources expended by TVA on Thermo-l Lag resolutions by site (Browns Ferry, Watts Bar, and Sequoyah) and year since i
the identification of the technical concerns by the staff in 1992 and a breakdown of the projected resources to be expended until the Thermo-Lag issues are resolved.
The resource breakdown by year and site are included as Attachment 1.
NRC requested a comprehensive accounting of the amounts of installed Thermo-Lag in relation to sensitive equipment that TVA's concern about disrupting during this work.
The accounting of installed Thermo-Lag considered to be in areas of sensitive equipment is included as Attachment 2.
.. -. ~.
4 0
SEQUOYAH NUCLEAR PLANT ATTACHMENT 1 TVA RESOURCE EXPENDITURES ON THERMO-LAG FY 1992 FY 1993 FY 1994 FY 1996 FY 1998 FY 1997 FY 1998 FY 1999 TOTAL Testmg 8
4,341 8 278,839 8 60,000 8 180,810
$ 44,618 8
688,308 BFN
$ 168,068 8 1,948,000 8
18,000
$ 800,000 8 100,000 8 2,910,068 SQN 3,900
$ 98,200
$ 88,200
$ 763,000
$ 3,076.000 8 2,996,000
$ 8,993,300 i
$ 3,632,237
$16,341,312 8 1,810,000 8 20,783,649 l
TOTAL
$ 170,399 8 2,224,839 8 3,704,137
$16,220,122 8 2,102,718 8 763,000
$ 3,076,000 8 2,096,000 8 31,246,213 NOTE: DATA AS OF OCTOBER 1,1998 i
i l
l i
i i
I I
I I
1 s
d
=
SEQUOYAH NUCLEAR PLANT ATTACHMENT 2 ACCOUNTING OF INSTALLED THERMO-LAG AROUND SENSITIVE EQUIPMENT FY 1997 FY 1998 FY 1999 TOTAL
% SENSITIVE TOTAL
% SENSITIVE TOTAL
% SENSITIVE CONDUlT InitialInspections 4374 ft 49
. Upgrades 1121 ft 38 1121 ft 38 SPECIAL CONFIGURATIONS Initial Inspections 1646 sq ft 32 Upgrades 823 sq ft 32 823 sq ft 32
.