ML17340A247

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Forwards Response to IE Bulletin 80-20 Re W-2 Spring Return to Neutral Control switches.Safety-related Sys Using Switches Identified & Test Performed.Longer Term Measures Mod Plan to Be Completed by Second Quarter 1981
ML17340A247
Person / Time
Site: Turkey Point  NextEra Energy icon.png
Issue date: 09/16/1980
From: Robert E. Uhrig
FLORIDA POWER & LIGHT CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
IEB-80-20, L-80-307, NUDOCS 8010150282
Download: ML17340A247 (4)


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FLORIDA POWER 5 LIGHT COMPANY

'0 SED23 A8: 28 September 16, 1980 L-80-307 Mr. James P. O'Reilly, Director, Region II Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 101 Marietta, Street, Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

Re: RII:JP IE Bulletin 80-20 We have reviewed the subject Bulletin for applicability to Turkey Point Units 3 8 4, and our response is attached.

Approximately 60 man-hours have been expended thus far in responding to the first two action items in the Bulletin.

Very truly yours, ert E. Uhrig Vice President Advanced Systems 8 Technology REU/MAS/md Attachment cc: Mr. Harold F. Reis, Esquire Director, Division of Reactor Operations Inspection

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I 6 E Bulletin Attachment Page 1 Item 1 Determine whether Westinghouse Type W-2 control switches with spring return to neutral position are used in safety-related applications at your facility. If so, identify the safety-related systems using these switches and the total num-ber of switches so used. If no such switches are used in your facility, you should indicate that this is the case and ignore the remaining questions.

Res nse 1

~Com onent A Component Cooling Water pump B Component Cooling Water pump C Component Cooling Water pump A Safety Injection pump B Safety Injection pump C Safety Injection pump D Safety Injection pump A Residual Heal Removal pump B Residual Heat Removal pump A Containment Spary pump B Containment Spray pump A Intake Cooling Water pump B Intake Cooling Water pump C Intake Cooling Water pump A Startup Transformer Breaker B Startup Transformer Breaker A Load Center Feeder Breaker B Load Center Feeder Breaker C Load Center Feeder Breaker D Load Center Feeder Breaker Emergency Startup Transfer Breaker Total Number of Switches:

Unit No. 3 . . . . . . 21 Unit No. 4 . . . . . . 21 Item 2 Licensees of operating plants using Type W-2 spring return to neutral control switches in safety-related applications shall perform continuity tests on all such switches. These tests shall be performed with the switch operator in the neutral position and completed within ten (10) days of the date of this bulletin.

In addition, this continuity test shall be repeated at least every thirty-one (31) days after the initial test and after each manipulation of the switch from its neutral position. These continuity tests may be discontinued subsequent to implementing the longer term corrective measuies described below.

I a E Bulletin Page Res nse 2 Continuity tests were performed on all the switches listed in Response 1 within ten (10) days of the date of the bulletin. The results of the continuity tests on all switches were successful.

Florida Power 6 Light Company will repeat the continuity test at least every ninety-two (92) days after the intital test. These continuity tests will-be discontinued subsequent to implementing longer term corrective action. Our engineering department is currently evaluationg the corrective measures necessary.

The basis for the reduced frequency of continuity testing is that the switches have continued to perform successfully since the initial criticality for both Unit No. 3 and Unit No. 4, October 20, 1972, and June ll, 1973, respectively.

Item 3 Licensees of operating plants and holders of construction permits shall describe the longer term corrective measures planned and the date by which such measures will be implemented by actual installation or by design change, as appropriate.

As a minimum, the longer term corrective measures should include rewiring the indicating light as shown in Figure 1 provided the light is readily visible to the control room operator. If not, failures of the neutral position contacts should be annunicated in the control room.

Res onse 3 The development of longer term measures has been referred to our engineering department. A modification plan, if one is found to be necessary, is targeted for the second quarter of 1981.