ML19249B256
| ML19249B256 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 08/01/1979 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | Counsil W CONNECTICUT YANKEE ATOMIC POWER CO. |
| References | |
| TASK-03-02, TASK-03-03.A, TASK-03-07.B, TASK-RR NUDOCS 7909040191 | |
| Download: ML19249B256 (3) | |
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August 1,1979 Docket No. 50-213 Mr. W. G. Counsil, Vice President Nuclear Engineering and Operations Connecticut Yankee Atomic Power Company Post Office Box 270 Hartford, Connecticut 06101
Dear F.r. Counsil:
RE:
HADDAM NECK PLANT SYSTEMATIC EVALUATION PROGRAM TOPICS - III-2, III-3.A, and III-7.B To continue our review of the subject topics the additional information described in the enclosure is required.
Please provide your response within 30 days of the date of this letter.
Sincerely, k
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/vynt% rT Dennis L. Ziemann,,,Cnief Operating Reactors Branch #2 Division of Operating Reactors
Enclosure:
Request for Additional Information cc w/ enclosure:
See next page 79090-1()(al
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di August 1,1979 Mr. W. G. Counsil m
cc w/ enclosure:
Day, Berry & Howard Counselors at Law One Constitution Plaza Hartford, Connecticut 06103 Superintendent Haddam Neck Plant RFD #1 Post Office Box 127E East Hampton, Connecticut 06:
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Mr. James R. Himmelwright Northeast Utilities Service Co*
P. O. Box 270 Hartford, Connecticut 06101 Russell Library 119 Broad Street Middletown, Connecticut 0645:
K M C, Inc.
ATTN:
Richard E. Schaffstill 1747 Pennsylvania Avenue,fi. W Suite 1050 Washington, D. C.
20006 9
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et HADDAM NECK PLANT REQUEST FOR ADDITIONAL INFORMATION STRUCTURAL TOPICS III-2 Wind and Tornado Loads For each safety-related structure, provide 1.
The procedures to transform wind velocity into design pressure and gust factors.
2.
original design basis for tornado loading including:
a.
maximum rotational wind speed b.
translational wind speed c.
pressure drop d.
radius of maximum rotational wind speed e.
procedures to transform tornado data into design pressure III-3.A Effects of High Water Level on Structures For each safety-related structure, I.
Describe the water loads considered in the original design and the extent to which dynamic effects due to flooding were considered.
2.
Clarify the water level for each load combination described in Topic III-7.B.
III-7.8 Design Codes, Design Criteria and Load Conbinations For each safety-related structure, 1.
List the codes and standards (including edition date) used for design and construction of concrete and steel elements (containment shell, containment internal structures, primary auxiliary building, control room, etc.).
2.
Provide the loads, load combinations and acceptance criteria employed for the design.
3.
Provide the design and/or actual material properties (fg and fi) used for steel and concrete elements.
For concrete, provide the age specified and any admixtures used.
4.
Provide a copy of the specifications used for design and constructicn.
5.
Provide representative stress levels (compression, tension and shear) at the critical location of each structure (e.g., at base of contain-ment internal structures) for each of the load combination provided in response to (2) above.
Od1DC Augu:t 1,1979