Document: NUREG-0800
Document ID: 90914152-fc84-4413-a5f5-aa75efd21205
Document Type: srp
Title: TURBINE MISSILES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0636/ML063600395.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.1.3
CFR Part: 
CFR Title: 

Content:
ting the need for such protection. If an applicant proposes to design or evaluate barriers to reduce or eliminate turbine missile hazards to equipment, the barriers should meet the acceptance criteria described in SRP Section 3.5.3. Additional design guidance is provided in “Fundamentals of Protective Design,” TM-5-885-1, Department of the Army, July 1965. Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 3.5.1.3-9 Revision 3 - March 2007 1. Compliance with GDC 4 requires that components important to safety be designed to accommodate the effects of, and be compatible with, environmental conditions associated with normal operation, maintenance, testing, and postulated accidents, including loss-of-coolant accidents. Components are to be appropriately protected against dynamic effects, including the effects of missiles, pipe whipping, and discharging fluids, that may result from equipment failure and from events and conditions outside the nuclear power unit. 2. The protection of safety-related SSCs from the effects of turbine missiles is discussed in this SRP section. The staff recommends that the calculated probability of damage to such equipment be less than 1 in 10 million per plant per year. Specific guidance regarding the arrangement, design, and inspection of turbine generators is provided to ensure that the probability of turbine missile damage will not exceed the limit value during the life of the plant. 3. Meeting the requirements of GDC 4 provides assurance that SSCs important to safety will be protected from the effects of turbine missiles and will be capable of performing their intended safety function. III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case. These review procedures are based on the identified SRP acceptance criteria. For