ML16294A399
| ML16294A399 | |
| Person / Time | |
|---|---|
| Issue date: | 03/12/1980 |
| From: | Hoyle J NRC OFFICE OF THE SECRETARY (SECY) |
| To: | |
| References | |
| ACRS-MA-0872, ACRS-MA-872, NUDOCS 8004140035 | |
| Download: ML16294A399 (2) | |
Text
DUKE POWER COMPANY POWER BuiDING 422 SOUTH CHURCH STREET, CHARLOTTE, N.
C. 28242 WILLIAM 0. PARKER,JR.
VIcE PRESIDENT TELEPHONE: AREA 704 STEAM PRODUCTION 373-4083 March 21, 1980 Mr. J. P. O'Reilly, Director U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 Re:
Oconee Nuclear Station Docket Nos. 50-269, -270, -287 IE Bulletin 80-3
Dear Mr. O'Reilly:
Pursuant to Item 4, please find attached our response to the subject bulletin. No evidence of filter degradation as described in the bulletin was observed at Oconee.
V y truly yours, William 0. Parker, Jr.
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DUKE POWER COMPANY OCONEE NUCLEAR STATION RESPONSE TO IE BULLETIN 80-3 In accordance with Item 1 of the subject bulletin, visual examinations of charcoal filter replacement cells were examined at Oconee. Inasmuch as the replacement cells are of similar design to those installed and since the examinations required by ANSI N510-1975, Section 5 were carried out as a part of the periodic filter testing, it was determined that risking damage to installed cells and/or associated equipment was not warranted.
The cells used at Oconee are of a design which utilizes spot welding versus riveting and is therefore not considered to be susceptible to the type of degradation observed at Sequoyah. Normal visual examinations carried out as part of the periodic filter testing would have and will continue toidentify any such problems in the Oconee filter systems. The following is a tabulation of the systems and filter cells in use at Oconee:
Unit/System Manufacturer Design Units 1, 2, 3 MSA ASK-1746-1346 Reactor Building Purge Units 1, 2, 3 AAF 105-840967-1 Penetration Room Ventilation Units 1, 2, 3 MSA 463484 Control Room Ventilation Units 1, 2, 3 AAF 105-888495-1 Gaseous Waste Disposal Units 1, 2, 3 AAF 105-888495-1 Hydrogen Purge