ML19320D346
| ML19320D346 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 07/01/1980 |
| From: | Clayton F ALABAMA POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| IEB-80-08, IEB-80-8, NUDOCS 8007210265 | |
| Download: ML19320D346 (5) | |
Text
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'c July 1, 1980 Docket No.:
50-348 50-364 Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, N.W.
Suite 3100 Atlanta, Georgia 30303 Gentlemen:
I.E. BULLETIN 0-08 Attached you will find Alabama Power Company's response to I.E.
Bulletin 80-08 for Farley Nuclear Plant Units 1 and 2.
Yours very truly,
&W F. L. Clayton, Jr.
CLB:de Attachment cc:
Mr. R. A. Thomas Mr. G. F. Trowbridge
!!r. W. H. Bradford t,diCI AL COPY 80 07210 2.ld
RES'rNSE TO IE BULLETIN 80-08 FARLEY NUCLEAR PLANT UNITS 1 & 2 Requested Action 1.
Determine if your facility contains the flued head design for penetration connections, or other designs with containment boundary butt weld (s) between the penetration sleeve and process piping as illustrated in Figure NE 1120-1, Winter 1975 Addenda to the 1974 and later editions of the ASME B&PV Code.
Response
Both Units of Farley Nuclear Plant contain flued head and welded head design containment boutidary butt welds between penetration sleeves and process piping.
Requested Action 2.
If en affirmative answer is reached for Item 1, determine the fol.owing:
a.
Applicability of the ASME code including year and addenda g
and/or Regulatory Guide 1.19, b.
Type of nondestructive examinations performed during gonstruction, c.
Type of weld joint (including pipe material and size) and whether or not backing bars were used, d.
Results of construction nondestructive examinations, i.e.,
if repairs were required, this should be identified inclading extent of repairs and description of defects encountered during repair, if known.
Response
a.
The applicable code for both Farley Units 1 and 2 is the 1971 ASME Code, Summer 1971 addenda. The facility also meets the requirements of Regulatory Guide 1.19.
b.
All containment boundary butt welds between penetration sleeves and pre ass piping in Unit 1 were radiographed.
In Unit 2 (under construction) all penetration butt velds completed have been or will be radiographed. Upon completion, the remaining penetration butt welds in Unit 2 will be radiographed.
A -,
c.
Th3 cretninment boundary butt w21ds bstw:cn p:nstrction c19 ves cnd prec s3 piping in both Unite 1 cud 2 consist of stainless steel to carbon steel and carbon steel to carbon steel welds in different applications. Pipe sira.s range from 3/4 inches to 48 inches in diameter and penetrations range in size from 3 inches to 54 inches in diameter.
Backing bars are not used for these welds, s
d.
_ Unit 1 (operational):
Of the 78 containment boundary butt welds between penetration sleeves and process piping in Farley Unit 1, radicgraphy revealed seventeen (17) welds which required repairs.
Those welds are tabulated below along with other known pertinent information:
Approximate Extent of Indication Weld Identification Indication Subsequently Repaired Q-1-T52-1607 FW-1 Slag inclusion 1/2" x 3/4" and porosity Porosity 5/8" x 1/4" Slag line 1-1/2" long Q-1-T52-1608 FW-2 Incomplete 3/16" long fusion p_.
Porosity 3/8" x 1/4" Q-1-T52-1611 FW-5 Slag inclusion 1/4" long Slag inclusion 3/4" x 1-3/4" and porosity
,Q-1-T52-1611 FW-5R1 Slag inclusion 3/4" x 1-3/4" and porosity Incomplete 1/8" x 3/4" fusion 1/4" x 1/2" Q-1-T52-1611 FW-5R2 Incomplete 1/8" x 3/4" fusion 1/4" x 1/2" Q-1-T52-1611 FU-SR3 Incomplete 1/8" x 3/4" fusion Q-1-T52-1615 0
'FW-9 Incomplete 360 fusion Q-1-T52-1624
,/2" x 1/4" FW-18 Porosity 1
Porosity 1/4" x 1" 3/8" x 1/2" 3/4"'x 3/4".
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s Approximate Extent of Indication Weld Indantification Indication Subsequently Repaired Q-1-T52-1627 W-21 Porosity 1/2" x 1/4" 3/8" x 1/8" Q-1-T52-1630 W-24 Slag inclusion 3/4" long Q-1-T52-1632 W-26 Slag line 1/2" long Q-1-T52-1633 Porosity 1/4" x 1/4" W-27 1" x 1-1/4" 1/4" x 1/4" Q-1-T52-1646 W-40 Incomplete 1/4" long fusion Q-1-T52-1676 W-70 Incomplete 15/16" long fusion Incomplete 3/8" x 3/16" fusion 3/4" long Slag line 1-1/2" x 14" Q-1-N11-EG-180 W-8 Slag line 4" long Q-1-N21-EG-186 W-2 Incomplete 5" long
,F-fusion Incomplete 12" long fusion Incomplete 12" long fusion
'Incompleto 8" long fusion Q-1-N21-EG-187 W-8 Slag inclusion 1/2" long Q-1-G24-E3819 i
W-3F Incomplete 1/2" long fusion 2-1/2" long Q-1-E11-EG-519 W-8 Incomplete 8-3/4" long fusion Incomplete 3" long fusion Q-1-E11-EG-41 W-5 Slag line and 1-3/4" x 4-1/2" slag inclusion A.-.
Unit 2 (under construction):
A total of 60 containment boundary butt welds between penetration sleeves and process piping have been Of that total, radiography revealed five welds which required repairs extensive enough to require the of this response.
Those welds are tabulated below addition of filler metal.
along with other known pertinent information:
Approximate Extent of Indication Subsequently Repaired _
Indication Weld Identification Q-2-Nil-1EG2-2 Porosity and 5/8" FW-15 slag inclusion Q-2-P16-EG2-310 1-3/8" Slag line FW-18 Q-2-E21-EG2-415 3/8" Slag line FW-14 Q-2-T52-E7500 1-1/ 2" Porosity FW-17 Porosity and incomplete fusion 5/16" FW-18 Requested Action For those facilities committed during construction to perform volumetric examination of such penetrations through SAR 3.
commitments which have not performed radiography, justify not performing radiography or submit plans and schedules for performing radiographic examinations."
Response
Radiography is performed as stated in the response to 2.b., above.
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