Document: NRC Regulatory Guide
Document ID: e7cef6d0-2869-4d77-9a08-126120ae6043
Document Type: regulatory_guide
Title: Fuel Oil Systems for Emergency Power Supplies + HISTORY – HISTORY 06/2012 – DG-1282 , Proposed Revision 2 Prior to the issuance of DG-1282, RG 1.137 was entitled "Fuel –Oil Systems for Standby Diesel Generators (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1210/ML121090447.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.137
CFR Part: 
CFR Title: 

Content:
or fuel oil systems used in nuclear power plants for safety-related applications are included in ANSI/ANS-59.51-1997. This standard provides a method acceptable to the NRC staff for complying with the pertinent requirements of GDC 17 of Appendix A to 10 CFR Part 50, for both safety-related emergency diesel generators and for safety- related emergency gas turbine generators, subject to the following: 1. Throughout ANSI/ANS-59.51-1997, other documents required to be included as part of the standard are either identified at the point of reference or described in Section 6.1, “Safety Classification and Applicable Codes, Standards, and Regulations,” or in Section 7, “References,” of the standard. Some of these documents have been withdrawn by the issuing organization and the edition/revision indicated for most or all of the referenced documents are not current. Except as specifically addressed in this regulatory guide, the edition/revision of each code and standard stated in ANSI/ANS-59.51-1997 should be applied to the fuel oil system. 2. The quality group classification for the fuel oil system up to the system interface with the diesel engine or gas turbine skid should be Quality Group C in accordance with Regulatory Guide 1.26, “Quality Group Classifications and Standards for Water-, Steam-, and Radioactive-Waste- Containing Components of Nuclear Power Plants” (Ref. 4). The seismic classification of the fuel oil system up to the diesel engine or gas turbine skid interface should be Seismic Category I in accordance with Regulatory Guide 1.29, “Seismic Design Classification” (Ref. 5). 3. Section 1.1, “Scope,” of ANSI/ANS-59.51-1997 states that the standard provides functional, performance, and initial design requirements for the fuel oil system for safety-related emergency diesel generators. The standard does not specifically address quality assurance, and in this regard, ANSI/ANS-59.51-1997 should be used in conjunction with Regulatory Guide 1.28,