ML20078B624
| ML20078B624 | |
| Person / Time | |
|---|---|
| Site: | Rhode Island Atomic Energy Commission |
| Issue date: | 10/07/1994 |
| From: | Tehan T RHODE ISLAND, STATE OF |
| To: | Mendonca M Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20078B629 | List: |
| References | |
| NUDOCS 9410260164 | |
| Download: ML20078B624 (1) | |
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l STATE OF RHODE ISL.AND AND PROVIDENCE PLANTATIONS sfp?+
RHODE ISLAND ATOMIC ENERGY COMMISSION Nuclear Science Center South Ferry Road i
Narragansett, R. I. 02882 October 7, 1994 9
[
Docket No. 50-193 Mr. Marvin Mendonca, Senior Project Manager 1
(
Non-Power Reactors, Decommissioning and Environmental Project Directorate Division of Reactor Projects - III/IV/V U.
S. Nuclear Regulatory Commission Washington, D.C.
20555 Dear Mr. Mendonca-Enclosed you will find a copy of.the revised Emergency Core
)
Cooling System (ECCS) 'for Facility License No.
R-95.
To
)
reduce the leak rate during a design basis accident of a beam port leak, 1/2 inch orifices are currently being installed in all the beam port vent lines. The resulting leak rate is significantly less than the previous calculations and has resulted in a decision to reduce the l
size of.the ECCS and simplify it's operation.-This revision l-incorporates all your comments from the previous design or i
l makes the comment no longer applicable. If there are any questions, please call me at 401-789-9391.
Sincerely, i
/
b i s, Ds//
Tdrry ehan Dir or J
l TT':cd Enclosure cc: Jim Matos, Argonne National Laboratory e-onpq nuuw%a 9410260164 941007 PDR ADOCK 05000193 4'\\ r i
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