Document: NRC Regulatory Guide
Document ID: cf1737d6-2a8a-4765-aaf5-f5f2a617ef91
Document Type: regulatory_guide
Title: Design of Main Steam Isolation Valve Leakage Control Systems for Boiling Water Reactor Nuclear Power Plants
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0037/ML003740263.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.96
CFR Part: 
CFR Title: 

Content:
eactor Safeguards noted that additional features to control main steam Isolation valve leakage should be considered. USNRC REGULATORY GUIDES Comments should be sent to the Secretary of the Commission. U.S. Nuclear Regulatory Commission. Washiogton. D.C 20555. Attention: Docketing and Regulatory Guides we issued to describe and make available to the public Sergice Section. methods acceptable to the NRC staff of implementing specific parts of the Commission's regulations. to delineate techniques used by the staff in evalu- The guides are Issued in the following ten broad divisions: sting specific problems or postulated accidents, or to provide guidance to appli cants. Regulatory Guides are not substitutes for rgulations. and compliance I Power Reactors 1 Products with them is not required Methods anJ solutions different from those set Out in 2. Research and Test Reactors 7. Transportation the guides will be acceptable if they provide a basis for the findings iequisata to I. Fuels and Materials Facilities . Occupational Health the issuance or continuance of a permit or license by the Commission 4. Environmental and Siting 9. Antitrust Review Comments and suggestions for .mprovements in these guides are encouraged S. Materials and Plant Protection 10. General at all limes, and guides writ be revised. as appropriate. to accommodate com ments and to reflect new information or experience This guide was revised as a Copies of published guides may be obtained by written request indicating the result of substantive comments received from the public and additional stalff divisions desired to the U S Nuclear Regulatory Commission. Washington. 0 C review 20655. Attention. Director. Office of Standards Development Revision 1 June 1976 allowed under the technical specification for the main steam isolation valves in postulated design-basis LOCA situations would be a small fraction of the 10 CFR Part 100 guidelines, 2 provided the main steam system from the isolation valves up to