ML15217A507

Response to Request for Information - Change to Technical Specification 3.8.1, AC Sources - Operating

ML15217A507
Person / Time
Site:	River Bend
Issue date:	07/16/2015
From:	Brumfield N T Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RBG-47582
Download: ML15217A507 (11)

Text

Entergy Entergy Operations, Inc.River Bend Station 5485 U.S. Highway 61 N St. Franciaville, LA 70775 Tel 225-381-4157 N. Todd Brumfield Director -Regulatory

& Performance Improvement RBG-47582 July 16, 2015 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

SUBJECT:

References Response to Request for Information

-Change to Technical Specification 3.8.1, "AC Sources -Operating" River Bend Station, Unit 1 Docket No. 50-458 License No. NPF-47 1. Entergy letter, Application for Change to Technical Specification 3.8.1,"AC Sources -Operating" dated July 9, 2014 (RBG-47461)

2. NRC email, River Bend Station Unit 1 License Amendment Request for Change to Technical Specifications 3.8.1, "AC Sources -Operating" (MF4421) dated January 20, 2015 3. Entergy letter, Response to Request for Information

-Change to Technical Specification 3.8.1, "AC Sources -Operating" dated May 7, 2015 4. NRC email, River Bend Station Unit I License Amendment Request for Change to Technical Specifications 3.8.1, "AC Sources -Operating" (MF4421) dated May 04, 2015 5. Entergy letter, Response to Request for Information

-Change to Technical Specification 3.8.1, "AC Sources -- Operating" dated June 3, 2015

Dear Sir or Madam:

In Reference 1 Entergy submitted a request for an amendment to the Technical Specifications (TS) for River Bend Station (RBS), Unit 1, modifying the existing Surveillance Requirements (SRs) related to Technical Specification 3.8.1, "AC Sources -Operating." References 3 and 5, are responses to NRC Staff requested additional information.

During the review an editorial changes to the numbering of the revised TS SRs was identified.

The changes are for clarity and have no technical effect. The changes are identified in the attachment.

Aw 1~ff'~

RBG-47582 Page 2 of 3 The changes were discussed with the NRC Project Manager. These changes are in the Attachment.

There are not new commitments in this letter. Please contact Mr. J. A. Clark at (225) 381-4177, if you have any questions.

I declare under penalty of perjury that the foregoing is true and correct. Executed on July 16, 2015.NTB/JAC/bmb

Attachment:

Revised Surveillance Requirement Numbering cc: Regional Administrator U. S. Nuclear Regulatory Commission, Region IV 1600 East Lamar Blvd.Arlington, TX 76011-4511 NRC Senior Resident Inspector P. 0. Box 1050 St. Francisville, LA 70775 U. S. Nuclear Regulatory Commission Attn: Mr. Alan Wang MS O-8B1 One White Flint North 11555 Rockville Pike Rockville, MD 20852 RBG-47582 Page 3 of 3 Department of Environmental Quality Office of Environmental Compliance Radiological Emergency Planning and Response Section Ji Young Wiley P.O. Box 4312 Baton Rouge, LA 70821-4312 Public Utility Commission of Texas Attn: PUC Filing Clerk 1701 N. Congress Avenue P. 0. Box 13326 Austin, TX 78711-3326 RBF1-15-0101 LAR 2014-02 AC Sources-Operating 3.8.1 SURVEILLANCEREQUIREMENTS_(continued)________

SURVEILLANCE FREQUENCY SR 3.8.1.11------------NOTES-------

1. All DG starts may be preceded by an engine prelube period.2. This Surveillance shall not be performed in MODE 1, 2, or 3. (Not applicable to DG 1C)However, credit may be taken for unpianned events that satisfy this SR.Verify on an actual or simulated loss of offsite power 24 months signal: a. De-energization of emergency buses;b. Load shedding from emergency buses for Divisions I and II; and c. DC auto-starts from standby condition and: 1. energizes permanently connected loads in_< 10 seconds for DG IA and DG lB and_< 13 seconds for DC IC, 2. energizes auto-connected shutdown loads, 3. maintains steady state voltage i.forDGl1Aand DG1B_>374OV and<_4368 V, ii. forDGl1C>3740Vand_<4580V

4. maintains steady state frequency

>_ 58.8 Hz and < 60.2 Hz, and 5. supplies permanently connected and auto-connected shutdown loads for_> 5 minutes.(continued)

RIVER BEND 3.8-9 RIVE BED 38-9 Amendment No. 81!21!33 168, 187 AC Sources-Operating

3.8.1 SURVEILLANCE

REQUIREMENTS (continued)________

SURVEILLANCE FREQUENCY SR 3.8.1.12--------------

NOTES- ------1. All DG starts may be preceded by an engine prelube period.2. This Surveillance shall not be performed in MODEl1 or2. (Not applicable to DG 1C)However, credit may be taken for unplanned events that satisfy this SR.Verify on an actual or simulated Emergency Core Cooling System (ECCS) initiation signal each DG auto-starts from standby condition and: a. For DG 1C during the auto-start maintains voltage < 5400 V and frequency

< 66.75 Hz;b. In < 10 seconds for DG 1A and DG lB and_< 13 seconds for DG IC after auto-start and during tests, achieves voltage _> 3740 V and frequency

_> 58.8 Hz.c. Achieves steady state voltage 1. ForDG 1Aand DG1B>3740Vand

<4368 V, 2. For DG 1C_374OV and<4580 V,and 3. For DG 1A, 1B, and IC, frequency of_> 58.8 and < 60.2 Hz; and d. Operates for _> 5 minutes.24 months (contirnued)

I RIVER BEND I IVRBED3.8-10 Amendment No.

165, 168v, 187 Attachment 1 RBG-47582 Revised Surveillance Requirement Numbering Specification Page Note/Change SR 3.8.1.11 3.8-9 Subsection lettering/numbering SR 3.8.1.12 3.8-10 Subsection lettering/numbering SR 3.8.1.15 3.8-12 Subsection lettering/numbering SR 3.8.1.15 3.8-13 Relocation of SR 3.8.1.16 (no change to SR)SR 3.8.1.19 3.8-14 Subsection lettering/numbering SR 3.8.1.20 3.8-15 Subsection lettering/numbering AC Sources-Operating

3.8.1 SURVEILLANCE

REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.13-~~~NOTE---

--This Surveillance shall not be performed in MODE 1, 2, or 3. (Not applicable to DG 1C)However, credit may be taken for unplanned events that satisfy this SR.Verify each DG's automatic trips are bypassed on an actual or simulated ECCS initiation signal except: a. Engine overspeed; and b. Generator differential current.24 months SR 3.8.1.14-~~~~NOTES-------

1. Momentary transients outside the load and power factor ranges do not invalidate this test.2. Credit may be taken for unplanned events that satisfy this SR.Verify each DG operating at a power factor _< 0.9, operates for _> 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />s: a. For DG 1A and DG I1B loaded _> 3050 kW and <3130 kW; and b. For DG 1C: 1. For_ 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> loaded _2750 kW and_<2850 kW, and 2. For the remaining hours of the test loaded _2525 kW and 2600 kW.24 months (continued)

RIVER BEND RIE ED3.8-11 Amendment No. 81 9"!,1211331!68, 187 AC Sources-Operating

3.8.1 SURVEILLANCE

REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.15-~~~NOTES--------

1. This Surveillance shall be performed within 5 minutes of shutting down the DG after the DG has operated > 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> loaded > 3050 kW and3100 kW for DG 1A and DG 1B, and>2525 kW and <2600 for DC lC, or operating temperatures have stabilized, which ever is longer.Momentary transients outside of the load range do not invalidate this test.2. All DG starts may be preceded by an engine prelube period.Verify each DG starts and achieves: 1. In <l0 seconds for DG1A and DG1B and< 13 seconds for DC IC voltage >3740 V and frequency

_> 58.8 Hz, and 2. Steady state voltage a) ForDGI1Aand DG1B>_374OV and<4368 V b) For DG1C>3740Vand_<4580Vand c) For DC 1A, 1B, and 1C frequency> 58.8 Hz and _< 60.2 Hz.24 months (continued)

RIVER BEND RIVR BND3.8-12 Amendment No. 81!21!33 165 168, 187 AC Sources-Operating

3.8.1 SURVEILLANCE

REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.16-----------

NOTE- -------This Surveillance shall not be performed in MODE 1, 2, or 3. (Not applicable to DG 1C) However, credit may be taken for unplanned events that satisfy this SR.Verify each DG: a. Synchronizes with offsite power source while loaded with emergency loads upon a simulated restoration of offsite power;b. Transfers loads to offsite power source; and c. Returns to ready-to-load operation.

24 months SR 3.8.1.17--------NOTE---------------.....

1 ..This Surveillance shall not be performed in MODE 1, 2, or 3. (Not applicable to DG 1C) However, credit may be taken for unplanned events that satisfy this SR.Verify, with a DG operating in test mode and connected to its bus, an actual or simulated ECCS initiation signal overrides the test mode by: a. Returning DG to ready-to-load operation; and b. Automatically energizing the emergency loads from offsite power.24 months SR 3.8.1.18-----------NOTE-------

This Surveillance shall not be performed in MODE 1, 2, or 3. (Not applicable to DG lC) However, credit may be taken for unplanned events that satisfy this SR.Verify sequence time is within + 10% of design for each 24 months load sequencer timer.(continued)

RIVER BEND RIVR BND3.8-13 Amendment No. 81 95 121 133 168, 187 AC Sources-Operating

3.8.1 SURVEILLANCE

REQUIREMENTS (continued)________

SURVEILLANCE FREQUENCY SIR 3.8.1.19----------NOTES-

---

1. All DG starts may be preceded by an engine prelube period.2. This Surveillance shall not be performed in MODE 1,2, or 3. (Not applicable to DG 1C)However, credit may be taken for unplanned events that satisfy this SR.Verify, on an actual or simulated loss of offsite power 24 months signal in conjunction with an actual or simulated ECCS initiation signal: a. De-energization of emergency buses;b. Load shedding from emergency buses for Divisions I and II; and c. DG auto-starts from standby condition and: 1. energizes permanently connected loads in_< 10 seconds for DG 1A and DG lB and_<l3 seconds for DG 1C, 2. energizes auto-connected emergency loads, 3. achieves steady state voltage i. forDGl1Aand DG1B>_3740 Vand_<4368 V, ii. for DG 1C>_374OV and_<4580V, 4. achieves steady state frequency

>_ 58.8 Hz and < 60.2 Hz, and 5. supplies permanently connected and auto-connected emergency loads for_> 5 minutes.(continued)

RIVER BEND 3.8-14 RIVE BED 3-14 Amendment No. 81!21 133 168, 187 AC Sources-Operating

3.8.1 SURVEILLANCE

REQU IREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.20 _-..............-.NOTE-----------..........

All DG starts may be preceded by an engine prelube period.Verify, when started simultaneously from standby 10 years condition, each DG achieves: 1. In_<l0 seconds for DG 1Aand DG1B and< 13 seconds for DG 1C voltage _3740 V and frequency

> 58.8 Hz, and 2. Steady state voltage a) For DG 1A and DG 1B->374OV and<4368 V, b) For DG IC 3740 V and 4580 V, and c) For DG IA, I1B, and IC frequency_

58.8 Hz and _< 60.2 Hz.RIVER BEND 3.8-15 RIVER BED 3.8-15Amendment No. &1-12'1--65 187