Document: NRC Regulatory Guide
Document ID: 50995365-d97f-4101-970a-378af6b5374b
Document Type: regulatory_guide
Title: Qualification of Fiber-Optic Cables, Connections, and Optical Fiber Splices for Use in Safety Systems for Production and Utilization Facilities (Rev. 0)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2505/ML25052A253.pdf
Revision Date: 2025-08
Chapter: 
Section ID: RG-1.257
CFR Part: 
CFR Title: 

Content:
ction Act of 1995 (44 U.S.C. 3501 et. seq.). These information collections were approved by the Office of Management and Budget (OMB), under control numbers 3150-0011 and 3150-0151, respectively. Send comments regarding this information collection to the FOIA, Library, and Information Collections Branch, Office of the Chief Information Officer, Mail Stop: T6-A10M, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, by e-mail to Infocollects.Resource@nrc.gov, and to the OMB reviewer at: OMB Office of Information and Regulatory Affairs (3150-0011 and 3150-0151), Attn: Desk Officer for the Nuclear Regulatory Commission, 725 17th Street, NW, Washington, DC 20503. Public Protection Notification The NRC may not conduct or sponsor, and a person is not required to respond to, a collection of information unless the document requesting or requiring the collection displays a currently valid OMB control number. RG 1.257, Rev. 0, Page 7 B. DISCUSSION Reason for Issuance This RG endorses, subject to the conditions described in Section C of this RG, IEEE Std. 1628-2023, which provides methods, directions, and documentation for the qualification of fiber-optic cables, connections, and optical fiber splices in safety systems of production and utilization facilities. Background This RG describes a method acceptable to the NRC staff for complying with the regulations for the qualification of fiber-optic cables, connections, and optical fiber splices in safety systems in production and utilization facilities. IEEE Std. 1682-2023 was prepared by IEEE Nuclear Power Engineering Committee Working Group 2.15 and was approved by the IEEE Standards Board on June 29, 2023. For the purposes of this guide, the primary objective of qualification is to demonstrate that equipment important to safety can perform its safety function(s) without experiencing common-cause failures during and after applicable DBEs. The NRC defines DBEs in 10 CFR 50.49(b)(1)(ii) as conditions of normal