Document: NUREG-0800
Document ID: 38c9e70d-6fc5-48a9-8504-06ce4c699bb8
Document Type: srp
Title: INSERVICE INSPECTION OF CLASS 2 AND 3 COMPONENTS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070450.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.6
CFR Part: 
CFR Title: 

Content:
uirements for periodic inspection and testing of Class 2 and 3 systems in General Design Criteria 36, 37, 39, 40, 42, 43, 45, and 46 are specified in part in 10 CFR Part 50, Section 50.55a, "Codes and Standards," and detailed in Section XI of the ASME Code. Compliance with the preservice and inservice examinations of 10 CFR Part 50, Section 50.55a, as detailed in Section XI of the Code, constitutes an acceptable basis for satisfying in part the requirements of General Design Criteria 36, 37, 39, 40, 42, 43, 45, and 46. Specific acceptance criteria for meeting the ISI requirements of these General Design Criteria and 10 CFR Part 50, Section 50.55a for the areas of review described in subsection I of this SRP section are as follows: 1. Components Subject to Inspection The applicant's or licensee's definition of Code Class 2 and 3 components and systems subject to an ISI program is acceptable if it is in agreement with the NRC quality group classification system or the definitions of Code Section III, Article NCA-2000, 32 "Classification of Components." The interpretation of code classifications of 33 components by the applicant or licensee is subject to review by the Mechanical 34 Engineering BranchEMEB in SRP Section 3.2.2 for compliance with safety criteria 35 pertaining to component classification. Where a specific item will be subject to inspection requirements different in any way from the ASME Code Section XI requirements corresponding to the item's Code Class, the exceptions for the item, including the ISI requirements to be applied, should be clearly identified and described. Exceptions involving less stringent inspection requirements for Code Class 2 or 3 items than those required by Section XI must be adequately justified. (Refer to SRP Section 36 3.2.2 or Article NCA-2000 of Code Section III.) 37 6.6-5 DRAFT Rev. 2 - April 1996 2. Accessibility The design and arrangement of Class 2 and 3 systems are acceptable if the applicant or licensee includesshould