Document: NUREG-0800
Document ID: f0ec8180-bdec-47b1-b10f-926bce888716
Document Type: srp
Title: FUNCTIONAL DESIGN, QUALIFICATION, AND INSERVICE TESTING PROGRAMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1613/ML16134A116.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.6
CFR Part: 
CFR Title: 

Content:
demonstrating continued design- basis capability should not exceed 5 years or three refueling outages, whichever is longer, unless a longer interval can be justified. Longer design-basis verification intervals may be justified through implementation of ASME Code Case OMN-1, as accepted in RG 1.192 as incorporated by reference in 10 CFR 50.55a, or Appendix III to the ASME OM Code when incorporated by reference in 10 CFR 50.55a. (4) Acceptance criteria for successful completion of MOV testing should include the following: (a) Consistent with the safety function, the valve should fully open and/or the valve fully close or both. Test equipment should indicate hard seat contact. (b) The testing should demonstrate adequate margin with respect to the design basis, including consideration of test equipment inaccuracies, degraded voltage, control switch repeatability, load sensitive MOV behavior, and margin for degradation. (c) The maximum torque and/or thrust (as applicable) achieved by the MOV, allowing sufficient margin for test equipment inaccuracies and control switch repeatability, should not exceed the allowable structural and undervoltage motor capability limits for the individual parts of the MOV. ii. Inservice Testing Program for Power-Operated Valves Other Than Motor- Operated Valves (1) The applicant should describe its IST program attributes for meeting the IST provisions in the ASME OM Code for power- operated valves (POVs) other than MOVs as incorporated by reference in 10 CFR 50.55a. 3.9.6-21 Revision 4 – March 2017 (2) In addition to ASME OM Code provisions, NRC Regulatory Issue Summary (RIS) 2000-03, “Resolution of Generic Safety Issue 158: Performance of Safety-Related Power-Operated Valves Under Design Basis Conditions,” provides guidance for the development of IST programs for POVs that incorporate the lessons learned from MOV analysis and tests in response to GL 89-10, “Safety- Related Motor-Operated Valve Testing and Surveillance.” With