Document: NRC Regulatory Guide
Document ID: 43b9de94-a140-4f44-8c19-0129bc5e24b5
Document Type: regulatory_guide
Title: 02/1989
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0037/ML003740047.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.158
CFR Part: 
CFR Title: 

Content:
quired, Methods and solutions different from those set out in the guides will be acceptable If they provide a basis for the findings requisite to the issuance or continu ance of a permit or license by the Commission. This guide was issued after consideration of comments received from the public. Comments and suggestions for improvements in these guides are encouraged at all times, and guides will be revised, as ap propriate, to accommodate comments and to reflect new information or experience. Written comments may be submitted to the Regulatory Publications Branch, DFIPS, ARM, U.S. Nuclear Regulatory Commission, Washing ton, DC 20555. February 1989 3UIDE B. DISCUSSION The Station Design Subcommittee, a subcommit tee of the Energy Development and Power Genera tion Committee of the Institute of Electrical and Elec tronics Engineers (IEEE), has prepared IEEE Std 535-1986, "IEEE Standard for Qualification of Class 1E Lead Storage Batteries for Nuclear Power Gener ating Stations."* The IEEE Standards Board ap proved the standard on September 19, 1985. This standard describes qualification methods for Class 1E lead storage batteries and racks to be used in nuclear power plants outside of primary containment. The safety-related batteries undergo a program of qualification as part of an overall quality assurance program that also includes requirements for design, production, quality control, installation, maintenance, and periodic testing. This regulatory guide addresses only the qualification portion of the overall quality as surance program. Batteries qualified by test should be precondi tioned by natural or artificial (accelerated) aging to their end-of-installed-life condition, and consideration must be given to all significant types of degradation that can have an effect on the functional capability of the batteries. There are uncertainties re garding the processes and environmental factors that could result in such degradation. Because of these *Copies maybe obtained