ML20094B845

Forwards Rev 5 to Test Specification 23A6999, Isolation Condenser & Passive Containment Condenser Test

ML20094B845
Person / Time
Site:	05200004
Issue date:	10/24/1995
From:	Quinn J GENERAL ELECTRIC CO.
To:	Quay T NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20094B850	List: ML20094B845 ML20094B854
References
MFN-244-95, NUDOCS 9511010316
Download: ML20094B845 (2)

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GENuclearEnergy J. E. Quinn Pmjects Manager GeneralElectric Company LMR and SBWR Programs 175 Curtner Avenue, M/C 165 San Jose, CA 951251014 408 9251005 (phone) 408 925-3991 (facsimile)

October 24,1995 MFN 244-95 Docket STN 52-004 Document Control Desk U. S. Nuclear Regulatory Commission Washington DC 20555 Attention: Theodore E. Quay, Director Standardization Project Directorate

Subject:

Transmittal of PANTHERS Test Specification 23A6999, Rev. 5.

Reference:

1) GE Letter MFN 007-93 to the NRC, dated January 18,1993.

2) GE Letter MFN 101-94 to the NRC, dated August 31,1994.

3) GE Letter MFN 025-95 to the NRC, dated February 15,1995.

4) GE Letter MFN 064-95 to the NRC, dated April 28,1995.

Transmitted herewith is PANTIIERS Test Specification 23A6999 Rev. 5. This revision supersedes the earlier versions sent in the above References 1 through 4.

This document specifies the requirements for tests of full-scale prototypes of the isolation condenser c (IC) and passive containment condenser (PCC) designed for use in the Simplified Boiling Water Reactor (SBWR). The purpose of the tests is to confirm the thermal hydraulic and structural adequacy of the Ansaldo designed hardware for use in the SBWR.

The major changes are as follows:

1. For the IC structural tests, the duration of maintaining the IC operation at 87 Bar was reduced from 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> to 15 minutes. The change was necessary because the ENEL power station, which supplies steam for these tests, is unable to supply the required steam for such a long period. GE reviewed the basis for the requirement, c.nd determined that it could be relaxed and still meet the test objective to capture any inelastic deformations which could cause thermal rachetting.

2. The allowable heatup and cooldown rates for the IC hrs been increased from 57 C/ hour to 100'C/ hour. This rate is conservative relative to the SBWR unit.

3. The required ratio of gases for the IC venting tests has been expanded to include nitrogen / helium .

mixtures.

Sincerely. -

l y in 1 ja'1R andQuinn, 4

Projects Manager y SBWR Programs

Enclosure:

PANTIIERS Test Specification 23A6999 Rev. 5. )

9511010316 951024 PDR ADOCK 05200004 1 A PDR l 1

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? t GENuclearEnergy cc: (1 paper copy and E-Mail copy P. A. Boehnert (NRC/ACRS) [w/2 encl.]

1. Catton (ACRS) - (w/ encl.]

A. Drozd (NRC)) [w/ encl.]

S. Q. Ninh (NRC) ) [w/2 encl.]

J. H. Wilson (NRC)) [w/ encl.]

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