ML20113C261

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Application for Amend to License R-95,revising Tech Specs to Change Design Spec Re Core & Control Sys Reactivity Worth to Performance Spec
ML20113C261
Person / Time
Site: Rhode Island Atomic Energy Commission
Issue date: 01/15/1985
From: Dimeglio A
RHODE ISLAND, STATE OF
To:
Office of Nuclear Reactor Regulation
References
NUDOCS 8501220270
Download: ML20113C261 (2)


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y TATE OF RHODE ISLAND AND PROVIDENCE PLANTAT*ONS RHODE ISLAND ATOMIC ENERGY COMMISSION Nuclear Science Center South Ferry Road Narragansett, R.I. 02882-1197 January 15, 1985 Director of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, DC 20555 License R-95 Docket 50-193 Gentlemen:

It is hereby requested that license R-95 for the operation of the Rhode Island Nuclear Science Center reactor be amended.

Specifically, it is requested that section K.3.e.(3)(a) on page 27 of the technical specifi-cations be amended to read:

(3) Principal Nuclear Characteristics of the Core (a) Core and Control System Reactivity Worth 1.

The reactor can be made suberitical using control blades by at least 1% Ak/k from the cold, Xe free, critical condition with the most reactive blade and the servo regulating element fully withdrawn.

2.

The maximum worth of the servo regulating element shall be o.7% Ak/k.

Justification The existing technical specification is actually a design specifica-tion. This amendment request will change the " design" specification to a " performance" specification which assures that the reactor caa be shut down from any operating condition and will remain shut down after cooldown and xenon decay, even if the highest worth control element should be in the fully withdrawn position.

All other core and reactivity specifications will remain unchanged.

Thank you for your consideration.

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4 Director of Nuclear Reactor Regulation

. January 15, 1985

- Page 2 Very truly yours, md,

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- A. Francis DiMeglio Director AFD:cd' cc: Rhode Island Atomic Energy Commission Reactor Utilization Committee Subscribed and sworn to before me this

/f day of January-1985

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