Document: NUREG-0800
Document ID: f65f0aa7-1e49-4552-ae98-0c2bd6ad430e
Document Type: srp
Title: TURBINE GLAND SEALING SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070591.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.3
CFR Part: 
CFR Title: 

Content:
4.3-3 DRAFT Rev. 3 - April 1996 materials, but are not part of the reactor coolant pressure boundary and are not important to safety. B. Regulatory Guides 1.33, and 1.123 as they relate to the quality assurance programs for the turbine gland sealing system components that may contain radioactive materials.22 Specific criteria necessary to meet the relevant requirements of 10 CFR Part 50, Appendix A, General Design Criteriaon 60 and 64 are as follows: 23 24 The turbine gland sealing system should be designed to provide for the collection and condensation of sealing steam and the venting and treatment (as required in Ref. 1) of noncondensables. Quality Group D as defined in Regulatory Guide 25 1.26 (Ref. 2) and a nonseismic design classification are acceptable design 26 criteria for this system. 2. General Design Criterion 64, "Monitoring Radioactivity Releases," as it relates to the turbine gland sealing system design for the monitoring of releases of radioactive materials to the environment.27 Technical Rationale The technical rationale for application of the above acceptance criteria to the review of the turbine gland sealing system is discussed in the following paragraphs.28 (a) General Design Criterion 60 requires that the nuclear power unit design include means to control suitably the release of radioactive materials in gaseous and liquid effluents produced during normal operation, including anticipated operational occurrences. Sufficient holdup capacity shall be provided for retention of gaseous and liquid effluents containing radioactive materials, particularly where unfavorable site environmental conditions can be expected to impose unusual operational limitations upon the release of such effluents to the environment. GDC 60 applies to this SRP section in that review under this section, in conjunction with review under SRP Sections 11.3 and 11.5, verifies that the design of the turbine gland sealing system includes acceptable means to control the release of