Document: NRC Regulatory Guide
Document ID: 08964ae0-0fa8-4e51-af44-0c6a1ee6e94c
Document Type: regulatory_guide
Title: Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Power Plants
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1221/ML12216A011.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.108
CFR Part: 
CFR Title: 

Content:
. *- B. DISCUSSION The purposes of onsite electric power systems are (1) to provide power promptly to engineered safety *Lines indicate substantive changes from previous issue. USNRC REGULATORY GUIDES Regulatory Guides are issued to describe and make.available to the public methods acceptable to the NRC staff of implementing specific parts of the Commission's regulations, to delineate techniques used by the staff in evaluating specific problems or postulated accidents, or to proyide guidance to applicants. Regulatory Guides are not substitutes for regulations, and compliance with them is not required. Methods and solutions different from those set out in the guides will be accept- able if they provide a basis for the findings requisite to the issuance or continuance of a permit or license by the Commission. Comments and suggestions for improvements in these guides are encouraged at all times, and guides will be revised, as appropriate, to accommodate comments and to reflect new information or experience. This guide was revised as a result of substantive comments received from the public and additional staff review. Comments should be sent to the Secretary of the Commission, US. Nuclear Regu- latory Commission, Washington, D.C 20555, Attention: Docketing and Service Branch. The guides are issued in the following ten broad divisions: 1. Power Reactors 2. Research and Test Reactors 3. Fuelsand Materials Facilities 4. Environmental and Siting 5. Materials and Plant Protection 6. Products 7. Transportation 8. Occupational Health 9. Antitrust Review 10. General Requests for single copies of issued guides (which may be reproducedl or for place- ment on an automatic distribution list for single copies of future guides in specific divisions should be made in writing to the US. Nuclear Regulatory Commission, Washington, D.C. 20555, Attention: Director, Division of Document Control. The testing of the diesel generator unit should simulate, where practicable, the parameters of