ML19351F412
| ML19351F412 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 12/05/1980 |
| From: | Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| IEB-80-08, IEB-80-8, NUDOCS 8101120553 | |
| Download: ML19351F412 (2) | |
Text
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SACRAMENTO MUNICIPAL UTILITY DISTRICT C 6201 S straet, Box 15830, Sacramento, California 95813; (916) 452-3211 h
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._ m Docket 50-312 December 5, 1980
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Mr. R. H. Engelken, Director
-g Region V, Office of Inspection and Enforcement U.S. tiuclear Regulatory Commission Suite 202, Walnut Creek Plaza 1990 fiorth California Boulevard Walnut Creek, CA 94596 IE Bulletin 80-08 Examination of Containment Liner Penetration Welds
Dear Mr. Engelken:
As a follow-up to the District's response to Items 2b and 2d of IE Bulletin 80-08, concerning the containment piping penetration welds, we have reviewed our records and found that, in addition to the liquid _ pene-trant and helium leak testing, radiography was also performed. The attached
" Summary of Radiographic Test Results" contains the results of construction nondestructive examination for those welds which required repair.
Should you have any questions, please contact Larry Smith on (916) 452-3211, extension 621.
Sincerely, b
fmWNL n
John J.11attimoe Assistant General Manager and Chief Engineer 3
-Attachment 9.i.
cc: Di rector E
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c Division of Construction Inspection w
QY U.S. fiuclear Regulatory Commission 4:.'
4 Washington, D.C.
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810 1120553
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n, A N ~ E LICT Ric S Ys T E M S E PVIN G M o R E ' T H A N 6 0 0. 0 0 0'- I N T H E ~~ H E A R T ' o F ' Att 0 J,
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Containecnt Piptog Penetration Welds Requiring Repair
- h wtra tten Criginil Repair 3 or t.w
.'el d (Je f ec t s Repair 1 Repair 2 Repair 4
, M Repair 5 Repair 6 ISP-2 1/4" Porasity Cluster (SP-10 1" Slag Inclusion 1/4" Slag Inclusion R-2 OK 1/4" Slag Inclusion 1/2" Slag Inclusion f*,pgl s
vq 'M 1/4" Slag-Inclusion 1" Inccmplete Fusion N
l 1/2' Slag & Porosity Cluster ej,Q. '
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1/4" Slag Inclusten
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1" (Total) Slag Inclusion m PP e
3" inccmplete fusion ISP-17 3" Concave Poot 1" Concave Root 2* Incomplete Fusio-tio 1" Cencave Root, OK 3" (Total) Coicave Root.
3" Intermittent R-3 or R-4 Slag & Tungsten O,
Inccrplete fusion, &
Incomplete fusion Reported inclusions Tungsten Inclusion (SP-19 5 srall clusters Porosity Accepted (3" Total Lenqth) 1" Perosity & (Jndercut 1/8" rerosity a tJndercut 4" Scattered Porosity g
ISP-22 1" Cencave Root Accepted 9" Internittent Concave Root 3" Concave Rcot 1" Concave Root a
ISP-29 1/4" Incceplete Fusion OK TSP-43 1/2" Incomplete Penetration
' ' Incorrplete fus' ion Accepted SP-48 1* Incomplete Penetration O
- SP-52 10* liigh-l.cw 6" Surface Roughness 12" Surface Roughness (Reported OK)
- SP-56 Incomplete Fusion (Entire Weld Apparently
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Replaced) v ISP-58 1/2" Concave Root 3/4" Concave Root tio R-2 Reported R-3 OK
- Sh-65 2" Drop-through 3/4" Drop-through R-2 CK v
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