ML18025A293
| ML18025A293 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 08/20/1975 |
| From: | Curtis N Pennsylvania Power & Light Co |
| To: | Butler W Office of Nuclear Reactor Regulation |
| References | |
| Download: ML18025A293 (4) | |
Text
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NPi DISTRIBUTION FOR PART 50 DOC l',ET MATERIAL
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(TEMPORARY FORM)
CONTROL NO:
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FROM PRnnsylvania Power & Ligh Co.
Allentown', Pa N W Curtis DATE OF DOC DATE B EC'D
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Dr. Walter R. Butler ORIG 1-si ned CC OTHER SENTI',c PDR SENT LOCAL PDR CLASS UNCLASS PROP INFO INPUT NO CYS REC'D DOCKET NO:
50-8 ad DESC B I PTION:
Ltr notarized 8-25-75 advt, sing of the installation of nuclear service 'piping subarticle NB-4600 of the 1974 edition of th ASME B&PV Code,Section III ~ ~ ~ ~ ~ ~
ENCLOSURES:
Dist Por M. Rushbrook PLANT NAME:
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TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONEs (215) 821-5'151 August 20, 1975 Filo Cy.
Dr. Walter R. Butler, Chief Light Water Reactors Branch 1-2 Division of Reactor Licensing U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Docket Nos.
50-387 50-388 SUSQUEHANNA STEAM ELECTRIC STATION ASME SECTION III - NB-4600 ER 100450 FILES 840-2 0 288 PLA-79
Dear Dr. Butler:
This is to inform you that for field, installation of nuclear service piping subarticle NB-4600 of the 1974 edition of the ASME BMV Code, Section IIIwill be used in leiu of subarticle NB-4600 of the 1971 edition of the ASME B&PT Code,Section III, through the 1972 Addenda with the following exceptions and conditions:
- l. All welding shall be done with low hydrogen electrodes.
2.
Joints in materials of 3/4" to 1-1/2" thickness, even though less than 0.3+
C shall be preheated to minimum of 200 F when PWHT is omitted.
This 200 shall also be maintained as a minimum interpass temperature.
3.
For joints in materials of 3/4" to l-l/2" thickness and greater than 0.39$ C, in addition to the 200OF minimum preheat temperature, a
minimum 200 F interpass temperature shall 'be maintaineds The PSAR will'be changed. in a later amendment.
Very truly yours,
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