ML20028A090
| ML20028A090 | |
| Person / Time | |
|---|---|
| Site: | Mcguire |
| Issue date: | 10/28/1982 |
| From: | Tucker H DUKE POWER CO. |
| To: | Adensam E, Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8211160395 | |
| Download: ML20028A090 (2) | |
Text
d e
DUKE POWER GOMPANY P.O. Hox 33180 CilAMLOTrE. N.C. 28242 HALH. TUCKER Teternoxe two emessons? -
(704) 373-4531 wecs.aan rennroction October 28, 1982 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Attention:
Ms. E. C. Adensam, Chief Licensing Branch No. 4
Subject:
McGuire Nuclear Station Docket No. 50-370
Dear Mr. Denton:
In reference to your October 8, 1982 letter, the following information is pro-vided to facilitate your review of the seismic and dynamic qualifications of the McGuire Unit 2 safety-related equipment.
All equipment required to shutdown and maintain the reactor in a safe and orderly condition or prevent the uncontrolled release of excessive amounts of radioactivity has a seismic classification of Category 1.
The Category 1 classification is discussed in Section 3.2 and the Categor'y 1 equipment is tabulated in Tables 3.2.2-2 and 3.2.3-1 of the McGuire FSAR. The equipment designated Category 1 is designed to withstand, without loss of function, the OBE and SSE. There are no differences in the McGuire Unit I and Unit 2 Category 1 equipment that would impact the seismic capability of said equipment.
Unit 1 and Unit 2 Category 1 equipment is designed for seismic rer,onse by the use of response spectra as described in Sections 2.5 and 3.7 and App.tdix 2E of the McGuire FSAR. The method of qualification of Category 1 equipmenc to these response spectra is discussed in Sections 3.9 and 3.10 of the McGuire FSAR. The FSAR criteria outlined above apply equally to Unit 1 and Unit 2 of the McGuire Nuclear Station.
It should be noted that the NRC Seismic Qualification Review Team (SQRT) performed a seismic audit of the McGuire Nuclear Station on January 31-February 1, 1977.
Intensive reviews and in-plant inspection were conducted and Duke's seismic qualification program for Category 1 equipment was found to be acceptable.
In summary, there are no differences in equipment type response spectra, location, mounting, placement, testing, analytical techniques, or procedures between McGuire Unit 1 and McGuire Unit 2 that would invalidate the NRC Staff's previaus findings.
fo48 8211160395 821d'28
~~
PDR ADOCK 05000370 A
b Harold R. Denton October 28, 1982 Page 2 The McGuire FSAR and the programs reviewed by the SQRT apply equally' to both McGuire Units and the seismic qualification programs for Category 1 equipment described in the FSAR have been reviewed and approved (NUREG-0422; McGuire Safety Evaluation Report). It is Duke's position that the Category 1 equipment at the McGuire Nuclear Station (Units l'and 2) is adequately seismically quali-fled and will function as stated in the McGuire FSAR.
Very truly yours, C aed 46 1 B. Tucker JAM:REH:jfw cc:
Mr. James P. O'Reilly, Regional Administrator-Mr. P. R. Bemis U. S. Nuclear Regulatory Commission Senior Resident Inspector Region 11 McGuire Nuclear Station 101 Marietta Street, Suite.3100 Atlanta, Georgia 30303
.