ML19323E422
| ML19323E422 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 05/16/1980 |
| From: | DUKE POWER CO. |
| To: | |
| Shared Package | |
| ML19323E413 | List: |
| References | |
| NUDOCS 8005230525 | |
| Download: ML19323E422 (1) | |
Text
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MCGUIRE NUCLEAR STATION Report Number: SD-369/80-06, 370/80-05 Report Date: May 16, 1980 Facility: McGuire Nuclear Station, Units 1 and 2 Identification of Deficiency: Fire Protection System Valve Misapplication Description of Deficiency:
On April 17, 1980, J. R. Wells, D. G. Gardner and J. K. Berry advised Mr.
John Rausch, NRC/01E, of a valve misapplication in the Fire Protection System at McGuire.
During an as-built review of the Fire Protection System, it was discovered two valves were erroneously applied to this system.
Two Duke Class H valves were assigned where the application required Class F valves. Duke Class H and F systems are both designed to ANSI B31.1, but Class F also requires seismic qualification for structural integrity of piping components.
Analysis of Safety Implications:
Valves act as penetration isolation between the Reactor Building Annulus Area and the Auxiliary Building.
Structural failure of the valve pressure boundary resulting from a seismic occurrence, concurrent with a pipe rupture and loss of the system loop seal inside the Annulus, would result in loss of isolation of the penetration.
Corrective Action:
Valves have been replaced with qualified valves.
8 0052 30 h
._