ML20140E166

Forwards Description of Functioning Preventive Maint Program for nonsafety-related Equipment,Per Util 851014-1115 Action List to Resolve 851002 Transient,Item Xix B.Resources Committed to Improve Program,Especially Mechanical Maint

ML20140E166
Person / Time
Site:	Rancho Seco
Issue date:	01/28/1986
From:	Reinaldo Rodriguez SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Miraglia F Office of Nuclear Reactor Regulation
References
RJR-86-10, NUDOCS 8602030196
Download: ML20140E166 (4)

Text

. . e esuu.SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 S Street. P.O. Box 15830, Sacramento CA 95852-1830.(916) 452 3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA RJR 86-10 January 28, 1986 DIRECTOR OF NUCLEAR REACTOR REGULATION ATTENTION FRANK J MIRAGLIA JR DIRECTOR PWR 8 DIVISION US NUCLEAR REGULATORY COMMISSION WASHINGTON DC 20555 DOCKET 50-312 RANCHO SECO NUCLEAR GENERATING STATION UNIT NO. 1 PREVENTIVE MAINTENANCE PROGRAM FOR NON-SAFETY RELATED EQUIPMENT During the period of October 14 thru November 15, 1985, the District supplied the NRC staff with an " Action List" to resolve items from the transient of October 2. Item XIX b concerned planned improvements to the District's preventive maintenance program for non-safety related equipment.

The attachment to this letter provides a description of the functioning preventive maintenance program.

If you hrv0 any questions concerning any of the above, please contact Jerry Delezenski at Rancho Seco.

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R. J. R00 IGUEZ ASSISTANT GENERAL MANAGER, NUCLEAR 'g Attachment

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PREVENTIVE MAINTENANCE PROGRAM FOR NON-SAFETY RELATED EQUIPMENT This attachment fulfills a commitment, made following the October 2,1985 Transient, to provide a description of the planned improvements to the Preventive Maintenance Program for non-safety related equipment.

1. Existing PM Program The existing Preventive Maintenance Program is detailed in AP.650. It describes the administration of a computerized program which schedules and issues work requests on any item or task requiring preventive maintenance.

The scope of the existing program has been to include items which are either Class 1 or have been identified as important to proper operation of the plant. The Group Supervisors in the I&C,' Electrical, and Mechanical Haintenance areas define and implenent the program.

The District has recognized that there is a significant benefit to be gained by upgrading the scope and depth of the non-safety related PM program. Resources have been committed to improve the program, particularly in the Mechanical Maintenance area where a contractor has been working full time for six months to evaluate and upgrade the non-Class 1 program.

2. Programmatic Improvements A. Purpose of PM Program Preventive Maintenance will be performed on all systems important to the safe, ef ficient, and smooth operation of the plant. The purpose of the Preventive Maintenance Program is to reduce challenges to plant operation by anticipating and performing required maintenance on selected plant equipment prior to its failure.

B. Scope of Program Each Supervisor, responsible for maintenance or monitoring of plant equipment, will identify equipment and components which are embraced by the purpose of this program, and include them in the PM program.

C. PM Program Process

1. Group Supervisors will direct a methodical review of equipment and components within their area of responsibility and determine where additions or improvements in the PM program need to be made.

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2. Items which will be considered in this review will include:

a. Service Conditions

b. Accessibility

c. Performance trends

d. Frequency of scheduled testing or calibration

e. Frequency of unscheduled maintenance

~3. A Predictive Maintenance Program will be developed to evaluate performance, trend and condition of selected systems or equipment. Typical techniques that might be used are:

a. Equipment vibration monitoring

b. Bearing oil analysis

c. Acoustic monitoring or noise analysis

d. Stroke times on valves

e. Inrush current on motors D. Implementation Additional resources have been committed to the PM program. An individual will be added to the staffs of the I&C Maintenance,

Electrical Maintenance, and Mechanical Maintenenace Departments for l the purpose of supervising and upgrading their PM programs.

These individuals will be knowledgeable and experienced in the performance of naintenance, calibration, and testing of the type of equipment within the scope of that department. They will have the skills necessary to perform the program requirements of scheduling.

l analyzing, and trending necessary to implement effective preventive

! maintenance. They will be responsible for developing, implementing, l and supervising the PM program in each maintenance area.

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! Staff to accomplish the actual PM's is already available for the

-existing PM program. As the scope expands, additional manpower will be committed to the program to assure timely compliance with the PM l ,

program objectives and commitments. Funding for the additional supervisory personnel necessary to implement the expanded PM program l is included in the 1986 budget.

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- - . E. Schedule It is expected that the individual PM Program Supervisors will be functioning by the third quarter of 1986. Their initial efforts will be to:

1. Review and upgrade the procedures and processes necessary to implement the expanded PM program.

2.. Upgrade the existing PM's.

3. ' Add new items, to the PM program.

4. Monitor the effectiveness of the PM's.

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