Document: NUREG-0800
Document ID: 9cfc38bf-7808-446e-a43d-4ca9ff55df2a
Document Type: srp
Title: AC POWER SYSTEMS (ONSITE)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1007/ML100740289.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.3.1
CFR Part: 
CFR Title: 

Content:
gram (CP stage) and the results of such tests (OL stage) for demonstrating the suitability of the diesel generators as standby power supplies are judged to be acceptable if they satisfy the acceptance criteria stated in Subsection II. In the event that diesel generators have not been selected for a particular plant, a commitment from the applicant to obtain diesel generators of a design that has been previously qualified for use in nuclear power plant applications, or to perform qualification tests on diesel generators of a new design in accordance with the acceptance criteria, is considered acceptable. The review of the diesel generator auxiliary systems is reviewed in SRP Sections 9.5.4 through 9.5.8. To ensure that diesel generator reliability and operation will not be degraded, the reviewer evaluates the diesel generator descriptive information and the results of failure modes and effects analyses in the SAR and, using engineering judgment, verifies the following items: A. Provisions have been made in the facility design and in the design and installation of electrical equipment associated with the starting of the diesel generators to minimize engine failure to start on demand due to accumulation of dust and other deleterious material ingested via the ventilation system or generated in the diesel engine room during normal plant operation on the electrical starting equipment (e.g., auxiliary relay contacts, control switches, etc.) panel or individually mounted. B. The diesel generator sets are capable of operation at less than full load without degradation of performance or reliability and operating procedures limit no-load operation. C. A complete formal training program is provided for all mechanical and electrical maintenance, quality control, and operating personnel, including supervisors who are responsible for the maintenance and availability of the diesel generators. D. A preventive maintenance program is provided that encompasses investigative testing of