Document: NRC Regulatory Guide
Document ID: cf98f778-626a-46c2-a526-aa8661195ab2
Document Type: regulatory_guide
Title: Qualification of Safety-Related Battery Chargers and Inverters for Nuclear Power Plants (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2216/ML22160A570.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.210
CFR Part: 
CFR Title: 

Content:
get, 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. DG-1412 Page 5 B. DISCUSSION Reason for Revision This revision (Revision 1) of RG 1.210 revises the title of the RG to clarify that other nuclear facilities are also within the scope of this RG and updates the RG to endorse the 2017 version of IEEE Std. 650, which addresses new issues identified since the RG’s original issuance. These new issues include qualification of uninterruptible power supply (UPS) systems and programmable digital devices included in direct current (dc) power sources and qualification of the equipment to withstand electrical transients during operation. Notably, the revised standard also clarifies mechanical cycling steps for connectors and functional monitoring recommended during environmental stress test and acceptable methods for seismic testing that were discussed in the regulatory positions of Revision 0 of the RG. The information in this revised guide is specific to the qualification of safety-related equipment important to safety located in mild environments at production and utilization facilities licensed under 10 CFR Part 50 or 10 CFR Part 52. Background RG 1.210, “Qualification of Safety-Related Battery Chargers and Inverters for Nuclear Power Plants,” Revision 0, issued June 2008 (Ref. 18), endorsed IEEE Std. 650-2006, “IEEE Standard for Qualification of Class 1E Static Battery Chargers and Inverters for Nuclear Power Generating Stations,” (Ref. 19) which provided methods for qualifying battery chargers and inverters in accordance with IEEE Std. 323-2003, “IEEE Standard for Qualifying Class 1E Electrical Equipment for Nuclear Power Generating Stations” (Ref. 20). In 2016, the IEEE issued Std. 323 jointly with the International Electrotechnical