ML20246D773

Safety Evaluation Supporting Util Response to Generic Ltr 83-28,Item 2.2.1, Required Actions Based on Generic Implications of Salem ATWS Events. Equipment Classification Program for safety-related Components Acceptable

ML20246D773
Person / Time
Site:	Vermont Yankee
Issue date:	08/21/1989
From:	NRC
To:
Shared Package
ML20246D763	List: ML20246D759 ML20246D773
References
GL-83-28, NUDOCS 8908280260
Download: ML20246D773 (2)

Text

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VERMONT YANKEE NUCLEAR POWER STATION DOCKET NO. 50-271 GENERIC LETTER 83-28, ITEM 2.2.1 EQUIPMENT CLASSIFICATION PROGRAM FOR ALL SAFETY-RELATED COMPONENTS

1.0 INTRODUCTION

Generic Letter 83-28 was issued by the NRC on July 8,1983 to indicate actions to be taken by licer. sees and applicants based on the generic implications of the Salem ATWS events. Item 2.2.1 of that letter states that licensees and applicants shall describe in considerable detail their program'for classifying all safety-related components other than RTS components as safety-related on plant documents and in information handling systems that are used to control plant activities that may affect these components. Specifically, the licensee / applicant's submittal was required to contain information describing (1) the criteria used to identify these components as safety-related; (2) the information handling system which identifies the comoonents as safety-related; (3) the manner in which station personnel use this information handling system to control activities affecting these components; (4) management controls that are used to verify that the information handling system is prepared, maintained, validated, and used in accordance with approved procedures; and (5) design verification and qualification testing requirements that are part of the specifications for procurement of safety-related components.

The licensee for Vermont Yankee submitted responses to Generic Letter 83-28, Item 2.2.1 in submittals dated November 7, 1983, March 23, 1984, July 3, 1985, June 2, 1986, July 1, 1988, and December 23, 1988. We have evaluated these responses and find them to be acceptable.

2.0 DISCUSSION AND EVALUATION .

The licensee provides submittals that describe programs to assure that all components necessary for accomplishing the required safety-related functions are properly designated on plant documents, procedures, and in the information handling system that are used to control safety-related plant activities.

The licensee also provides a description of the criteria used for classifying j components and equipment as safety-related and a description of the preparation, 4 maintenance, control and use of the information handling system which contains {

the classification information. In addition, management controls used by the licensee assure that the information handling system will be consistent, adequately prepared and maintained, and will be used as intended. Furthermore, the licensee assures that appropriate design verification and qualification is ,

specified for the procurement of safety-related components and parts.  ;

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.- 3.0- CONCLUSION The staff and our contractor have reviewed the licensee's responses to Generic Letter 83-28, Item 2.2.1 regarding the equipment classification program for I safety-related components and conclude that they are acceptable.

1 Principal Contributor: L. Tran l

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