ML18134A283
| ML18134A283 | |
| Person / Time | |
|---|---|
| Site: | Westinghouse |
| Issue date: | 05/08/2018 |
| From: | Gresham J A Westinghouse |
| To: | Document Control Desk, Office of New Reactors |
| References | |
| CAC MF9141, LTR-NRC-18-27 | |
| Download: ML18134A283 (2) | |
Text
Westinghouse Non-Proprietary Class 3 @Westinghouse U.S. Nuclear Regulatory Commission Document Control Desk 11555 Rockville Pike Rockville, MD 20852 Westinghouse Electric Company 1000 Westinghouse Drive Cranberry Township, Pennsylvania 16066 USA Direct tel: (412) 374-4643 Direct fax: (724) 940-8542 e-mail: greshaja@westinghouse.com LTR-NRC-18-27 May 8, 2018 .
Subject:
Review of Draft Safety Evaluation for Westinghouse Electric Company Topical Report WCAP-18124-NP, Revision 0, "Fluence Determination With RAPTOR-M3G And FERRET" (CAC NO. :MF9141)
References:
- 1. Westinghouse letter LTR-NRC-17-7, "Submittal ofWCAP-18124-NP, Revision 0, 'Fluence Determination with RAPTOR-M3G and FERRET,' "January 25, 2017 (ML17030A377)
- 2. NRC letter to_Westinghouse, "Request for Additional Information Re: Westinghouse Electric Company WCAP-18124-NP, Revision 0, 'Fluence Determination with RAPTOR-M3G and FERRET' Topical Report (CAC No. :MF9141)" (ML17318A700)
- 3. Westinghouse letter LTR-NRC-18-5, "Response to the NRC Request for Additional Information on the RAPTOR-M3G and FERRET Topical Report," January 18, 2018 (ML18018B347)
- 4. NRC letter to Westinghouse, "DRAFT SAFETY EVALUATION FOR WESTINGHOUSE ELECTRIC COMPANY TOPICAL REPORT WCAP-18124-NP, REVISION 0, "FLUENCE DETERMINATION WITH RAPTOR-M3G AND FERRET" (CAC No. :MF9141), April3, 2018 Via Reference 1, WCAP-18124-NP, Revision 0 was submitted for NRC review and approval.
Reference 2 requested additional information in support of that review. Reference 3 provided the response to the request for additional information.
Reference 4 provided the staff's draft safety evaluation (SE). This draft was provided for comment on any proprietary aspects and any factual errors or clarity concerns.
Accordingly, Westinghouse has reviewed the subject draft safety evaluation and has determined that there
- is no proprietary information.
With respect to clarification, there are a few aspects that Westinghouse would like to bring to the attention of the NRC. First, it is noted that concerns for the limits of applicability are discussed relative to the extended beltline region (EBR) while there is no discussion relative to limitations on applicability to reactor vessel internals (RVI). Also, the draft SE states in part, " ... but agreed with NRC staff that it provides limited information to support fluence evaluations for license renewal applications
{emphasis added} on a generic basis." Westinghouse agrees that the WCAP provides limited information to support fluence evaluations relative to the EBR or RVIs; however, it is unclear if that limitation is exclusive to license renewal applications.
© 2018 Westinghouse Electric Company LLC. All Rights Reserved.
Westinghouse Non-Proprietary Class 3 Finally, Limitation 1 is currently worded as: Page 2 of2 LTR-NRC-18-27 May 8, 2018 "Additional justification may be required for applications of the method to components including, but not limited to, the RPV upper circumferential weld and reactor coolant system inlet and outlet nozzles. " Typically the NRC expects licensees to delineate how the limitations and conditions have been met. For Limitation 1, the licensee would state something similar to, "Limitation 1 has been met pending any additional information requested by the NRC." This submittal does not contain proprietary information of Westinghouse Electric Company LLC. Correspondence shOuld be addressed to James A. Gresham, Consulting Engineer, Licensing
& Regulatory Affairs, Westinghouse Electric Company, 1000 Westinghouse Drive, Building 2, Suite 259, Cranberry Township, Pennsylvania 16066. cc: Ekaterina Lenning (NRC) Dennis Morey (NRC)
Engineer Licensing
& Regulatory Affairs