Document: NRC Regulatory Guide
Document ID: 7ff7fac8-958f-48d8-82dd-0c18b1b6e487
Document Type: regulatory_guide
Title: Installation Design and Installation of Vented Lead-Acid Storage Batteries for Nuclear Power Plants + HISTORY – HISTORY 01/2024 – DG-1421 , Proposed Revision 3 10/2006 – DG-1154 , Proposed Revision 2 Prior to the issuance of DG-1154, RG 1.128 was entitled "Installation Design and Installation of Large Lead Storage Batteries for Nuclear Power Plants" (Rev. 3)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2327/ML23277A276.pdf
Revision Date: 2024-01
Chapter: 
Section ID: RG-1.128
CFR Part: 
CFR Title: 

Content:
ommended practices in Section 2, “Normative References,” of IEEE Std. 484-2019 should be replaced with the following: RG 1.129, “Maintenance, Testing, and Replacement of Vented Lead-Acid Storage Batteries for Nuclear Power Plants and Utilization Facilities,” which endorses IEEE Std. 450, with clarifications. RG 1.212, “Sizing of Large Lead-Acid Storage Batteries,” which endorses IEEE Std. 485, with clarifications. 2. Section 5.2, “Location,” item (e), should be replaced with the following: e) The battery should be protected against natural phenomena, such as earthquakes, winds, and flooding, as well as induced phenomena, such as fire, explosion, missiles, pipe whips, discharging fluids, CO2 discharge, and radiation. For nuclear power plants, the general requirement that the battery should be protected against earthquakes and fires should be supplemented with the applicable recommendations for battery rooms in RG 1.189 and RG 1.100. 3. Section 5.2, “Location,” item (j), should be replaced with the following: j) Adequate area lighting should be provided. Reference NUREG-0800, Section 9.5.3, “Lighting Systems.” 4. Section 5.2, “Location,” should be supplemented to add the following item: m) For nuclear power plants’ Class 1E batteries, where batteries are required in redundant systems, the batteries should be separated as specified by RG 1.75 and as recommended for battery rooms in RG 1.189. 5. Section 5.3, “Mounting,” item (c), should be replaced with the following: c) Units in clear containers with flat plates should be mounted so that one edge of each plate is plainly visible for inspection and so that the electrolyte withdrawal tubes, or vent plugs are easily accessible. Battery cells should be arranged on racks to provide for the ability for cell plates to be inspected. 6. Section 5.4, “Seismic,” should be supplemented to add the following item: d) For nuclear power plants’ Class 1E batteries, the racks, anchors, and