Document: NUREG-0800
Document ID: fd06ef1f-75ea-4f29-9779-8714e92f3050
Document Type: srp
Title: MAIN STEAM ISOLATION VALVE LEAKAGE CONTROL SYSTEM (BWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070451.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.7
CFR Part: 
CFR Title: 

Content:
treat main steam isolation valve stem packing leakage or other direct leakage. 6.7-3 DRAFT Rev. 3 - April 1996 h. The instrumentation and control features necessary to accomplish the system function, including isolation of components of the system in the event of malfunctions. i. The need for a third main steam shutoff valve in each main steam line upstream of the turbine stop valve to assureensure the safety function of the MSIVLCS. Review Interfaces8 1. ASBSPLB also performs the following reviews under the SRP sections indicated: 9 a. Review for flood protection is performed under SRP Section 3.4.1. b. Review of the protection against internally generated missiles is performed under SRP Section 3.5.1.1. c. Review of the structures, systems, and components to be protected against externally generated missiles is performed under SRP Section 3.5.2. d. Review of protection against pipe breaks is performed under SRP Section 3.6.1. e. Review of the environmental qualification of mechanical and electrical equipment is performed under SRP Section 3.11.10 f. Review of fire protection is performed under SRP Section 9.5.1.11 g. Review of the design of the main steam piping and main steam drain lines is performed under SRP Section 10.3.12 h. Review of the design of the main condensers is performed under SRP Sections 10.4.1 and 10.4.2.13 i. Review of the turbine system is performed under SRP Sections 10.4.3 and 10.4.4.14 2. Related review evaluations will be performed by other branches and the results will be coordinated by ASBSPLB to complete the overall evaluation of the system. The 15 evaluations provided by other branches are as follows: a. The Structural Engineering Branch (SEB)Civil Engineering and Geosciences Branch (ECGB) determines the acceptability of the design analyses, procedures, 16 and criteria used to establish the ability of seismic Category I structures housing the system and supporting systems to withstand the effects of natural phenomena such as the safe