ML19321B096
| ML19321B096 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 06/25/1980 |
| From: | Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-80-08, IEB-80-8, SBU-37287, NUDOCS 8007250623 | |
| Download: ML19321B096 (2) | |
Text
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4PUBUC SERVICE Companyof New HempeNro SEABROOK STATION Engineering OfRce:
20 Turnpike Road Westborough, MA 01581 June 25, 1980 SBN-124 Ref SBU-37287 T.F. B 4.2.5 U.S. Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention: Office of Inspection and Enforcement
Reference:
1.
Docket No. 50-443 and 50-444 2.
NRC letter dated April 7,1980 3.
Subject:
Examination of Containment Liner Penetration Welds
Dear Sir:
The following information is provided in accordance with your request in IE Bulletin No. 80-08.
1)
There are nineteen (19) penetrations per unit with a flued head design.
2) a.
Applicable Code is the 1974 Code, Winter 1975 Addenda.
b.
The flued head penetrations have not yet been erected. The welds joining the flued head to the sleeve, have been classi-fled as ASME Code Class 2 and therefore, are to receive radio-graphic examinations.
c.
All the flued head penetrations are to be butt welded to the sleeves using consumable inserts.
No backing rings are to be used.
The pipe material and sizes are as follows:
800725n[&}
U.S. Nucir/;r Regulstory Conniecion Pag 3 2
.,s SBN-124 Penetration No.
Material Size X-1 SA-106 30" X-2 SA-106 30" X-3 SA-106 30" X-4 SA-106 30" X-5 SA-106 18" X-6 SA-106 18" X-7 SA-106 18" X-8 SA-106 18" X-9 SA-182, TP 304 12" X-10 SA-182, TP 304 12" X-ll SA-182, TP 304 8"
X-12 SA-182, TP 304 8"
X-13 SA-182, TP 316 12" X-14 SA-182, TP 304 8"
X-15 SA-182, TF 304 8"
X-63 SA-105 2"
X-64 SA-105 2"
X-65 SA-105 2"
X-66 SA-105 2"
d.
The erection of the flued heads has not yet taken place. Therefore, no construction NDE's have been performed.
3)
Radiography will be performed as required by Specification 9763-006-248-51 " Assembly and Erection of Piping and Mechanical Equipment."
Please contact us if you require further information.
Very truly yours,
/(hc A
John DeVincentis Project Manager JDV: tan c '... Director NRC Office of Inspection and Enforcement Washington, D.C.
20555
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