Document: NUREG-0800
Document ID: f03d2c71-27a1-41fd-9362-1e62c6142e13
Document Type: srp
Title: Containment Systems and Severe Accidents (Tier 1)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070653.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.11
CFR Part: 
CFR Title: 

Content:
WELDING This includes verifications of the quality of pressure boundary welds for ASME Code Class 1, 2, and 3 components and systems described in the design descriptions and figures, using appropriate non-destructive examination (NDE) methods. Detailed supporting information for verification of welding requirements in accordance with ASME Code requirements is contained in SSAR Chapter 3. c. ENVIRONMENTAL QUALIFICATION This includes verifications of the environmental qualification of Class 1E electrical equipment described in the design descriptions and figures. Detailed supporting information for environmental qualification requirements is contained in SSAR Chapter 3. Electrical equipment that is used to perform a necessary safety function must be demonstrated to be capable of maintaining functional operability under all service conditions, including LOCA, postulated to occur during its installed life for the time it is required to operate. Documentation relating to equipment qualification issues will be completed for all equipment items important to safety in accordance with the requirements of 10 CFR 50.49. This documentation will be in the form of the equipment qualification list and the device specific qualification files, and will include the specified environmental conditions, qualification methods (e.g., tests, or tests and analyses), and documentation of qualification results. The installed condition of electrical equipment important to safety will be compatible with conditions for which it was qualified. The scope of environmental qualification to be verified by the ITAAC includes the Class 1E electrical equipment identified in the Design Description (or on the accompanying figures), and connected instrumentation and controls, connected electrical components (such as cabling, wiring, and terminations), and the lubricants necessary to support performance of the safety functions of the Class 1E electrical components. The ITAAC will verify that the Class 1E