ML19270H788

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Responds to NRC Requesting Info Re Models Used for Cladding Strain & Assembly Blockage in Eccs.Calculations as Conservative as New Models Outlined in NRC . No Further Calculations Necessary
ML19270H788
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 12/27/1979
From: Dise D
NIAGARA MOHAWK POWER CORP.
To:
NRC COMMISSION (OCM)
References
NUDOCS 8001030594
Download: ML19270H788 (1)


Text

UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION In the Matter of

)

NIAGARA MOHAWK POWER CORPORATION

)

Docket No. 50-220 (Nine Mile Point Nuclear Station

)

Unit No. 1)

)

NRC REQUEST FOR INFORMATION Your letter of November 9, 1979 requested information on the models used for cladding strain and assembly blockage in the Emergency Core Cooling System calculations for Nine Mile Point Unit 1.

Niagara Mohawk has determined that the models used for cladding strain and assembly blockage in the Emergency Core Cooling System calculations for Nine Mile Point Unit 1 are as conservative as NRC's new models as outlined in your letter of November 9, 1979. Based on this determination Niagara Mohawk has concluded that no further calculations are necessary.

NIAGARA MOHAWK POWER CORPORATION By LW N(-d,

Donald P. Dise Vice President - Engineering Subscribed and sworn to before 6

me on this

.7 % day of December, 1979

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Notary Public

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