ML19338C759
| ML19338C759 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 08/01/1980 |
| From: | Clayton F ALABAMA POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| IEB-79-03A, IEB-79-3A, NUDOCS 8009050052 | |
| Download: ML19338C759 (2) | |
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Ma F. L. CL AYTON, J R.
r1 a afila power Senior %ce President 59 AUG S
? 9: I rne ww eet se August 1, 1980 Docket No M 48 o.Sg364 /
Mr. James P. O' Reilly V. S. Nuclear Regulatory Commission Region II 101 Marietta Street N. W.
Suite 3100 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
In response to I.E. Bulletin No.79-03A, " Longitudinal Weld Defects in ASME SA-312, Type 304 Stainless Steel Pipe" dated April 4, 1980, Alabama Power Company submits tne following for Farley Nuclear Plant Unit 1 and Unit 2.
Item 1 Determine whether SA-312 or A-312, Type 300 Series fusion welded pipe is in use or planned for use in safety-related systems subject to design stresses greater than 85 percent of the Code allowable stresses.
For the purpose of this check the actual wall thickness of the piping products will be considered adequate if the code requirements for pressure design of the piping products are satisfied using 85 percent of the maximum allowable stress at the design temperature.
Response
No SA-312 or A-312 Type 300 Series fusion welded pipe is in use or planned for use in safety-related systems subject to design stresses greater than 85 percent of the Code allowable stresses in either Farley Unit 1 or Farley Unit 2.
Item 2 For those piping components using greater than 85 percent of the allowable stresses identify the application of the piping including the system, pipe location, pipe size, pipe configuration (elbow, tee), design pressure /
temperature requirements and the manufacturer.
WelCM L a.e -
a T0: Mr. James P' 0'Reilly August 1, 1980
Response
No SA-312 or A-312 fusion welded piping components using greater than 85 percent of the allowable stresses are installed in either Farley Unit 1 or Farley Unit 2.
Item 3 For those facilities under construction and where access permits, the ends of all safety-related SA-312 and A-312 fusion welds should be etched to determine if CLP exists.
Identify the manufacturer and the degree of CLP as a percentage of the pipe wall thickness.
Response
This item is not applicable to Farley Unit 1 (operational).
For Farley Unit 2, all safety-related systems using SA-312 or A-312 fusion welded piping have been installed and cannot be etched.
No further use of SA-312 or A-312 in safety-related systems is planned.
If there are any questions on the above, please advise.
Yours very truly, F.
layton,j CLB/rt
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cc: Mr. R. A. Thomas Mr. G. F. Trowbridge Mr. W. H. Bradford Mr. M. D. Hunt, I & E, Region II Office of I & E Divn, of Reactor Operations Inspection Washington, D. C.
20555 Office of I & E Divn. of Construction Inspection Washington, D. C.
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