ML082760761
| ML082760761 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 10/02/2008 |
| From: | Richard Ennis Plant Licensing Branch 1 |
| To: | Chernoff H Plant Licensing Branch 1 |
| Ennis R, NRR/DORL, 415-1420 | |
| References | |
| TAC MD9355 | |
| Download: ML082760761 (3) | |
Text
October 2, 2008 MEMORANDUM TO:
Harold K. Chernoff, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM:
Richard B. Ennis, Senior Project Manager /ra/
Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
HOPE CREEK GENERATING STATION, DRAFT REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MD9355)
The attached draft request for information (RAI) was transmitted on October 2, 2008, to Mr. Jeff Keenan of PSEG Nuclear LLC (the licensee). This information was transmitted to facilitate an upcoming conference call in order to clarify the licensee=s amendment request dated July 30, 2008, as supplemented on September 29, 2008, for Hope Creek Generating Station. The proposed amendment would revise Technical Specification (TS) 3.8.3, Onsite Power Distribution Systems, to establish a separate TS Action statement for inoperable inverters associated with the 120 volt alternating current distribution panels. The intent of the proposed amendment is to extend the allowed outage time for inoperable inverters from 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
This memorandum and the attachment do not convey or represent an NRC staff position regarding the licensees request.
Docket No. 50-354
Attachment:
Draft RAI
October 2, 2008 MEMORANDUM TO:
Harold K. Chernoff, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM:
Richard B. Ennis, Senior Project Manager /ra/
Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
HOPE CREEK GENERATING STATION, DRAFT REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MD9355)
The attached draft request for information (RAI) was transmitted on October 2, 2008, to Mr. Jeff Keenan of PSEG Nuclear LLC (the licensee). This information was transmitted to facilitate an upcoming conference call in order to clarify the licensee=s amendment request dated July 30, 2008, as supplemented on September 29, 2008, for Hope Creek Generating Station. The proposed amendment would revise Technical Specification (TS) 3.8.3, Onsite Power Distribution Systems, to establish a separate TS Action statement for inoperable inverters associated with the 120 volt alternating current distribution panels. The intent of the proposed amendment is to extend the allowed outage time for inoperable inverters from 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
This memorandum and the attachment do not convey or represent an NRC staff position regarding the licensee's request.
Docket No. 50-354
Attachment:
Draft RAI DISTRIBUTION PUBLIC SRay, NRR/EEEB LPL1-2 R/F PSahay, NRR/EEEEB RidsNrrDorlLpl1-2 Resource RidsNrrDorlDpr Resource RidsNrrPMREnnis Resource ACCESSION NO.: ML082760761 OFFICE LPLI-2/PM NAME REnnis DATE 10/02/08 OFFICIAL RECORD COPY
DRAFT REQUEST FOR ADDITIONAL INFORMATION REGARDING PROPOSED LICENSE AMENDMENT TECHNICAL SPECIFICATION REQUIREMENTS FOR INOPERABLE INVERTERS HOPE CREEK GENERATING STATION DOCKET NO. 50-354 By letter dated July 30, 2008, (Agencywide Documents Access and Management System (ADAMS) Accession No. ML082200314), as supplemented on September 29, 2008, PSEG Nuclear LLC (PSEG or the licensee) submitted a license amendment request for Hope Creek Generating Station. The proposed amendment would revise Technical Specification (TS) 3.8.3, Onsite Power Distribution Systems, to establish a separate TS Action statement for inoperable inverters associated with the 120 volt alternating current (VAC) distribution panels. The intent of the proposed amendment is to extend the allowed outage time for inoperable inverters from 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
The Nuclear Regulatory Commission (NRC) staff has reviewed the information the licensee provided that supports the proposed amendment and would like to discuss the following issue to clarify the submittal.
- 1.
PSEG is requesting a change to the TSs such that when one or both of the inverters in a channel is inoperable, the 120 VAC distribution panel should be energized within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and the inverter restored in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. NUREG-1433, "Standard Technical Specifications (STS) General Electric Plants, BWR/4", STS Limiting Condition for Operation (LCO) 3.8.7, "Inverters - Operating," indicates that the inverter should be restored to operable status in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and requires entering STS LCO 3.8.9, "Distribution Systems
- Operating" with any AC vital bus de-energized. STS LCO 3.8.9 B requires that the AC vital bus distribution subsystem(s) be restored within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. Provide justification for the proposed 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> timeframe to restore the 120 VAC distribution panel(s) versus the 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> timeframe shown in the STS.
Attachment