ML18022A042

18 Byron Station, Units 1 and 2 - Information Request to Support Upcoming Temporary Instruction 2515/194 Inspection (DRS-I.Hafeez)

ML18022A042
Person / Time
Site:	Byron
Issue date:	01/19/2018
From:	Ijaz Hafeez Engineering Branch 3
To:	Bryan Hanson Exelon Generation Co, Exelon Nuclear
References
Download: ML18022A042 (5)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION REGION III 2443 WARRENVILLE RD. SUITE 210 LISLE, ILLINOIS 60532-4352 January 19, 2018 Mr. Bryan C. Hanson Senior VP, Exelon Generation Company, LLC President and CNO, Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555

SUBJECT:

BYRON STATION, UNITS 1 AND 2INFORMATION REQUEST TO SUPPORT UPCOMING TEMPORARY INSTRUCTION 2515/194 INSPECTION

Dear Mr. Hanson:

This letter is to request information to support our inspection of the Industry Initiative Associated with the Open Phase Condition Design Vulnerabilities in Electric Power Systems (U.S. Nuclear Regulatory Commission (NRC) Bulletin 2012-01) beginning April 3, 2018, at your Byron Station, Units 1 and 2. This inspection will be performed in accordance with the NRC Temporary Instruction 2515/194.

In order to minimize the impact that the inspection has on the site and to ensure a productive inspection, we have enclosed a list of documents requested for the inspection. Please provide this information prior to February 19, 2019. It is important that all of these documents are up to date and complete in order to minimize the number of additional documents requested during the preparation and/or the onsite portions of the inspections. Insofar as possible, this information should be provided electronically to the lead inspector.

The lead inspector for this inspection is Ijaz Hafeez. We understand that our licensing contact for this inspection is Lisa Zurawski of your organization. If there are any questions about the inspection or the material requested in the enclosure, please contact the lead inspector at 630-829-9843 or via e-mail at Ijaz.Hafeez@nrc.gov.

This letter does not contain new or amended information collection requirements subject to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information collection requirements were approved by the Office of Management and Budget, Control Number 3150-0011. The NRC may not conduct or sponsor, and a person is not required to respond to, a request for information or an information collection requirement unless the requesting document displays a currently valid Office of Management and Budget Control Number.

B. Hanson This letter and its enclosure will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding.

Sincerely,

/RA/

Ijaz Hafeez, Reactor Engineer Engineering Branch 3 Division of Reactor Safety Docket Nos. 50-454; 50-455 License Nos. NPF-37; NPF-66

Enclosure:

Document Request for Temporary Instruction 2515/194 Inspection cc: Distribution via LISTSERV

B. Hanson Letter to Bryan C. Hanson from Ijaz Hafeez dated January 19, 2018

SUBJECT:

BYRON STATION, UNITS 1 AND 2INFORMATION REQUEST TO SUPPORT UPCOMING TEMPORARY INSTRUCTION 2515/194 INSPECTION DISTRIBUTION:

Jeremy Bowen RidsNrrDorlLpl3 RidsNrrPMByron Resource RidsNrrDirsIrib Resource Steven West Darrell Roberts Richard Skokowski Allan Barker Carole Ariano Linda Linn DRPIII DRSIII ADAMS Accession Number: ML18022A042 OFFICE RIII RIII RIII RIII NAME IHafeez:cl DATE 01/19/18 OFFICIAL RECORD COPY

DOCUMENT REQUEST FOR TEMPORARY INSTRUCTION 2515/194 INSPECTION Please provide the following documentation (Items 1-6) to the lead inspector prior to the onsite inspection date, preferably no later than February 19, 2018. Whenever practical, please provide copies electronically. Please provide an index of the requested documents which includes a brief description of the document and the numerical heading associated with the request (i.e., where it can be found in the list of documents requested).

1. Copies of any calculations, analyses, and/or test reports performed to support the implementation of your open phase condition (OPC) solution. If, in your implementation, OPCs are not detected and alarmed in the control room please include documentation that:

(a) demonstrates the OPC will not prevent functioning of important-to-safety structures, systems, and components; and (b) detection of an OPC will occur within a short period of time (e.g., 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />).

2. Plant layout and equipment drawings for areas that identify: (a) the physical plant locations of major electrical equipment used in your open phase condition solution; (b) the locations of detection and indication equipment used in the open phase condition sensing circuits.

3. Copies of any modification packages, including Title 10 of the Code of Federal Regulations, Part 50.59 evaluations if performed, used for or planned for the implementation of your OPC solution.

4. Copies of periodic maintenance, surveillance, setpoint calibration, and/or test procedures implemented or planned, for your OPC solution.

5. Copies of your licensing basis changes to Updated Final Safety Analysis Report and/or Technical Specifications, as applicable, which discuss the design features and analyses related to the effects of, and protection for, any open phase condition design vulnerability.

6. Copies of any procurement specifications and acceptance testing documents related to the installation of your OPC solution.

7. Copies of any site training the team will need to accomplish to gain access to areas with, or planned, major electrical equipment used in your OPC solution (i.e., switchyard).

Please provide the following documentation to the team when they arrive onsite. Whenever practical, please provide copies electronically, except for drawings. Drawings should be provided as paper copies of sufficient size (ANSI C or D) such that all details are legible.

1. A brief presentation describing your electric power system design and typical electrical transmission and distribution system alignments; OPC design schemes installed to detect, alarm and actuate; bus transfer schemes; and maintenance and surveillance requirements.

This presentation should be a general overview of your system. Please schedule the overview shortly after the entrance meeting.

2. Plant layout and equipment drawings for areas that identify: (a) the physical plant locations of major electrical equipment used in your open phase condition solution; (b) the locations of detection and indication equipment used in the open phase condition sensing circuits.

3. If OPC actuation circuits are required, provide documentation that demonstrates continued coordination with the other protective devices in both the offsite electrical system (within Byron Station area of responsibility) and the onsite electrical systems.

Enclosure

DOCUMENT REQUEST FOR TEMPORARY INSTRUCTION 2515/194 INSPECTION

4. Access to locations in which open phase condition equipment is installed or planned (i.e., switchyard, transformer yard, etc.)

5. Copies of documentation or testing that demonstrates your OPC solution minimizes spurious actuation or misoperation in the range of voltage imbalance normally expected in the transmission system that could cause undesired separation from an operable off-site power source.

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