ML20087H468
| ML20087H468 | |
| Person / Time | |
|---|---|
| Site: | Bellefonte  |
| Issue date: | 03/13/1984 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| REF-PT21-84 NUDOCS 8403210046 | |
| Download: ML20087H468 (2) | |
Text
g a a :=
i 'N f)
- )i?_
TENNESSEE" VALLEY! AUTHORITY j
i 1
MTe nu$ YtN M Y we*r T I
% b 13,.1984
)
yait
?
.BLRD-50-433/84,[ p
. BLRD-50-439/84-19 '
1
- a. ; -
%P U.S. Nuclear-Regulatory Commission
~ ' "-
q ; Region'II.
Atta: W. James P. O'Reilly,' Regional Administrctor 101 Marietta Street, NW, Suite 2900.
l4 Atlanta,' Georgia ' 30303
,[
Dear'Mr.'O'Reilly:
BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 - ITI GRINNELL PIPE SUPPORTS
-DESIGNED WITH SWAY STRUTS INSTEAD OF REQUIRED GAPS - BLRD-50-438/84-20 AND
-BLRD-50-439/84 FIRST INTERIM REPORT LThe'sub, ject deficiency was initially mported to NRC-0IE Inspector f.
P. E.'Fredrickson on February 16,"1984 in' accordance with 10 CFR 50.55(e)
':'J as NCR BLN ~ BLP 8404. Enclosed' is our. first interia report. We expect to
,; submit icur next report by February l13,(1985. We consider 10 CFR Part 21 applicable to-this deficiency.
If you have any questions,' please get in touch with R. H. Shell at
.FTS.858-2688.-
LVery trul'y yours, TENNESSEE VALLEY-AUTH0RITY L.~ M. Mills,/ Manager Nuclear Licensing Enclosure
- 0o:- W. Richard C. DeYoung, Director (Enclosure)
' Office of Inspection and' Enforcement
-U.S. Nuclear' Regulatory Coimaission -
' Washington, D.C.
'20555 Records Center-(Enclosure)
- Institute of Nuclear Power Operations g
' 1100_ Circle 75 Parkway, Suite 1500
- Atlanta, Georgia. 30339 y
9403210046 840313 PDR ADOCK 05000438
-W'
.s.,,
.PDR OFFidf4t. COPY
-[gg7 198l;--TVA 5OTH ANNIVERSARY f
. An Equal Opportunity Einpfoyer~
, cu '
ENCLOSURE BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 ITT GRINNELL PIPE SUPPORTS DESIGNED WITH SWAY STRUTS INSTEAD OF REQUIRED GAPS BLRD-50-438/84-20 AND BLRD-50-439/84-19 10 CFR 50.55(e)
NCR BLN BLP 8404 FIRST INTERIM REPORT Description of Deficiency Se.tsmic pipe supports designed by ITT Grinnell, Providence, Rhode F'
Island, which are used on safety-related systems have sway struts specified where the piping analysis load tables generated by TVA require gaps ranging from 1/16 to 1/8 inches in the restrained direction. The sway struts (ITT Grinnell Figure 211) do not specify any allowable movements in the restrained direction in the load f
capacity data sheets. The deficient supports which have been identified are as follows:
1RT-MPHG-A052 Sh3 1RT-MPHG-A052 Sh4 1RT-MPHG-B052 Sh3-l 1RT-MPHG-B052 Sh4 ORF-MPHG-0300 Sh1 The cited supports were designed for use on the standby diesel gerierator and controls (RT) system and the high-pressure fire protection (RF) system.
Interim Progress
-TVA has myiewed all of the TVA load tables pertinent to the ITT Grinnell contract to identify the supports which require gaps in the restrained direction. TVA is currently reviewing the related ITT Grinnell detail sheets to determine if the gaps were incorporated into the design.
t.
_ _ _ _ _ _ _ _ _ _ _ _ _ _... _ _