ML20128D780
| ML20128D780 | |
| Person / Time | |
|---|---|
| Site: | 05200001 |
| Issue date: | 01/29/1993 |
| From: | Fox J GENERAL ELECTRIC CO. |
| To: | Poslusny C Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 9302100225 | |
| Download: ML20128D780 (3) | |
Text
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_f GE Nucicar Energy o
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General Eleanc Conwary.
175 Cumw Aenw San Juw LA 56125 i
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January 29,1993 Docket No. STN $2-001 F
Chet Poslusny, Senior Project Manager.
Standardization Project Directorate Associate Directorate for Advanced Reactors and License Renewal-Office of the Nudear Reactor Regulation -
Subject:
Submittal Supporting Accelerated ABWR Review Schedule
Dear Chet:
Enclosed is a response to an additional information request on ABV, h pedestal anchorage.
Sincerely, J. ek Fox Advanced Reactor Pro;; rams cc: Jack Duncan (GE)-
Norman Fletcher (DOE) l'*'
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Additional Information Request on ABWR Pedestal Anchorage
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R ference:
Letter from Son Q. Ninh to Patrick W. Marriott " Preliminary Staff Evaluation of the Advancert Boiling Water Reactor (ABWR)-
l Severe Accident-Performance, datedJanuary 25,1993.
l The reference describes a staff concern regarding the ABWR pedestal capability to 2
1 withstand 1.5 m of axial CCI ablation. A subsequent phone call ~was conducted on ~.
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January 26,1993. During the phone call GE and the staff reviewe'd drawings already.
in the staffs possession. The staff requested that_GE provide additional
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information about the anchorage details for the ABWR pedestal. It was' concluded L
that this was the omy information required by the staff for their review. The l-following information completes GE's response on this subject.
l The pedestal is anchored to the basemat by four rows ~of anchor bolts. There are two.
rows of anchor bolts for each of the two steel plates making up _the pedestal.lEach anchor bolt is 56 mm in diameter and 3000 mm'long. Each bolt passes through a i
67 mm hole in the 38 mm baseplate. It is GE's position that the bolts on the outer
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cylinder of the pedestal provides adequate anch~orage in the highly unlikely event L
that 1.5 m of axial erosion takes place.
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