ML19309H858
| ML19309H858 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 03/21/1980 |
| From: | Aswell D LOUISIANA POWER & LIGHT CO. |
| To: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| IEB-80-03, IEB-80-3, NUDOCS 8005200205 | |
| Download: ML19309H858 (2) | |
Text
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NSIc CENTRAL FILES I OUISIANA P O W E R & L I G H T! P O. 80X 60C8. New ORLEANS. LOUISIANA 70174 242 ocunaNce Srneer
- (504) 368-2345 Nu$'s sysY$
0 L ASWELL March 21, 1980
- u. %.ame-wxen LPL 13423 Q-3-A20.03.14 Mr. K. V. Seyfrit, Director, Region IV U. S. Nuclear Regulatory Commission Office of Insepction and Enforcement 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76012
SUBJECT:
Waterford 3 SES Docket No. 50-382
)
Dear Mr. Seyfrit:
The subject bulletin identified a potential problem, with charcoal from filter cells due to a design deficiency. A request was made to perform a visual inspection of charcoal adsorber cells shipped to the jobsite.
Our visual inspection required the following items to be checked:
1.
Method of attachment of screen to support channel.
2.
Separation between screen and channel.
3.
Sagging of screen.
4.
Spacing of weld attachment.
Accordingly, a visual inspection has been performed on the charcoal adsorber cells. The inspection of each cell revealed that the design is a welded construction where the screen is spot welded every two inches (minimum) to its associated channel.
The screen is 24 gauge material, and showed no signs of sagging, separation or degradation.
The units supplied on the Waterford 3 Project are CVI Corporation Model HEC.1 (R) 11.
Therefore, the problem identified in the subject bulletin is not applicable to the Waterford 3 design.
o Mr. K. V. Seyfrit LPL 13423 Page 2 Please note that this visual inspection was performed with empty adsorber cells.
However, our specification LOU 1564.748K "In Place Filter Testing",
specifies the testing requirements for charcoal adsorber cells with the charcoal in place.
This tescing will be performed in accordance with ANSI N510-75, titled
" Testing of Nuclear Cleaning Systems." It is estimated that these cells will be loaded with charcoal in March 1981.
Should you have any additional questions, please advise.
Yours very truly, D. L. Aswell DLA/RWP/dde cc: Director, Division of Fuel Facility and Materials Safety Inspection Office of Inpsection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C.
20555
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