ML20031D307
| ML20031D307 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 02/05/1975 |
| From: | Switzer D CONNECTICUT YANKEE ATOMIC POWER CO. |
| To: | Goller K Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20031D303 | List: |
| References | |
| TASK-03-05.B, TASK-3-5.B, TASK-RR NUDOCS 8110130229 | |
| Download: ML20031D307 (2) | |
Text
,
.e CONNECTICUT YANKEE ATOMIC POWER ' COMP ANY BERLIN, CO N N ECTIC U T
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P.O.BOM 270 H ARTFORD. CONNECTICUT 06101 i
TEL8.NOhE 203 666 6911 February 5, 1975 Mr. K. R. Goller Docket No. 50-213 Assistant Director for Operating Reactors Division of Reactor Licensing Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C.
20555
References:
(1)
D. C. Switzer letter to K. R. Goller, dated December 18, 1974 (2)
K. R. Goller letter to D. C. Switzer, dated January 17,_
1975
Dear Sir:
Haddam Neck Plant High Energy Pipe Break (EEPB) Outside Containment
- In Reference (1), Connecticut Yankee Atomic Power Company informed the NRC Staff of its intent to revise and resubmit the Connecticut Yankee report on the above-captioned subject based on reinvestigation of other possible This evaluation concluded that a system of barriers, restraints solutions.
and encapsulation sleeves could provide the necessary protection against high energy pipe breaks. It was further stated that adoption of this revised approach could result in complete installation of the modifications by the end of the upcoming refueling outage.
In Reference (2), CYAPCo was informed that the NRC had no reason to believe that alternative modifications could not be substituted for the original approach and was urged to submit the revised report as soon as possible for Staff review.
l CYAPCo hereby submits the enclosed special report, entitled " Effects of a High Energy Piping System Break Outside of Containment", which supercedes Based on the the previously-submitted special reports on this topic.
results of this reinvestigation, it has been concluded that for _any pos-tulated high energy pipe break outside of containment at least one method
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of safe plant -shutdown will be available.
8110130229 811002 PDR ADOCK 05000213 PDR p
Mr. K. R. Coller February 5,1975 It should also be noted that CYAPCo intends to submit a formal request to revise the applicable Technical Specifications (Section 4.12) upon installation of the modifications described herein.
In addition, in order to enable us to proceed on a schedule consistent with complete installation of these modifications by the end of the upcoming refueling outage, we again respectfully request for an expedited review by the NRC Staff. To this end, we are prepared to provide any additional information and/or to respond to Staff requests.
Your favorable and timely action will be greatly appreciated.
Very truly yours, CONNECTICUT YANKEE ATOMIC POWER COMPANY L
D. C. Switzer President DCS:Bl:jjm
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