Document: NUREG-0800
Document ID: 478329d7-b28f-4334-99e3-c149e19d1cdd
Document Type: srp
Title: ENVIRONMENTAL QUALIFICATION OF MECHANICAL AND ELECTRICAL EQUIPMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340658.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.11
CFR Part: 
CFR Title: 

Content:
all be reviewed periodically (not more than 18 months) to ensure that the design qualified life has not suffered thermal and cyclic degradation resulting from the accumulated stresses triggered by the abnormal environmental conditions and the normal wear due to its service condition. Engineering judgment shall be used to modify the replacement program and/or replace the equipment as deemed necessary. III. REVIEW PROCEDURES The reviewer will select and emphasize material from the procedures described below as may be appropriate fora particular case. The reviewer obtains and uses information from SAR Chapters 4, 5, 6, 7., 8, 9, 10, 11, 15, and 17 and consults with other branches as necessary to be assured that the proper environ- mental parameters are being used for the equipment qualification. For each area of review the following procedures are used: (1) At the CP stage, the staff reviews the program which the applicant has described in the PSAR for the environmental qualification of the mechanical and electrical equipment. The program is measured against the requirements listed in subsection 1I. Of particular interest to the reviewer are the proper use of test and analytical procedures. Equipment should be tested unless testing of the component is impractical due to size limitations or partial type test data is provided to support the analytical assumptions 3.11-5 Rev. 2 - July 1981 and conclusions reached. The qualification is reviewed for the identifi- cation of normal, abnormal, accident, and postaccident environmental conditions, required operating time, chemical, and submergence, aging, and margin considerations, including the acceptance criteria of the test results. - (2) At the OL stage, the staff reviews'the program again as described by the applicant in the FSAR. In addition, the FSAR is reviewed for documentation of the successful implementation of the environmental qualification program Including test and analytical results. The reviewer verifies that