Document: NUREG-0800
Document ID: 9a56a69d-7ff5-45af-9d63-dbefa3dea083
Document Type: srp
Title: TURBINE GENERATOR
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070575.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.2
CFR Part: 
CFR Title: 

Content:
least once a month, this examination should be made by direct observation of the valve motion. 6. Unlimited access to all levels of the turbine area under all operating conditions should be provided. Radiation shielding should be provided as necessary to permit access. 7. Connection joints between the low pressure turbine exhaust and the main condenser should be arranged to prevent adverse effects on any safety-related equipment in the turbine room in the event of rupture (it is preferable not to locate safety-related equipment in the turbine room). Technical Rationale22 10.2-5 DRAFT Rev. 3 - April 1996 The technical rationale for application of the above acceptance criterion is discussed in the following paragraphs:23 Compliance with GDC 4 requires, in part, that structures, systems, and components important to safety be appropriately protected against dynamic effects, including missiles. GDC 4 applies to this SRP section because the reviewer evaluates the turbine generator system to ensure that it is unlikely to be a source of missiles. Missiles resulting from a failure of the turbine generator system have the potential to cause the loss of function of safety-related structures or components, thus compromising the safety of the nuclear power plant. Specifically, turbine overspeed is a potential initiating event that could become a source of missiles. Implementation of a turbine overspeed protection system serves to control turbine action under all operating conditions, thereby ensuring that a full-load turbine trip will not cause the turbine to overspeed beyond acceptable limits. Meeting this requirement provides assurance that missiles resulting from failure of the turbine generator system will not result in loss of function of safety-related portions of the nuclear power plant.24 III. REVIEW PROCEDURES The procedures below are used during the construction permit (CP) review to determine that the design criteria and bases and preliminary design as set forth in