Document: NUREG-0800
Document ID: 63521156-eb6b-472c-9560-1e85462dc1be
Document Type: srp
Title: ENVIRONMENTAL QUALIFICATION OF MECHANICAL AND ELECTRICAL
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070288.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.11
CFR Part: 
CFR Title: 

Content:
uclear Power Generating Stations," (Reference 6) and is applicable to all future plants. Category II will not be applicable to any future plants.71 Subsection VI lists the documents which provide both acceptance criteria and evaluation guidance used in the review. The most important of these documents is IEEE Std 323 (augmented by Regulatory Guide 1.89), "General Guide for Qualifying Class I Electric Equipment for Nuclear Power Generating Stations." This document, aAlthough specifically written for Class I electric equipment, IEEE Std 323 contains a clear presentation of the principles and criteria that are 72 generic to the environmental qualification process itself; therefore, IEEE Std 323 is considered applicable to the environmental qualification of other types of equipment. This documentIEEE Std 323 contains detailed criteria applicable to 73 whatever method of qualification is used, i.e., type testing, analyses, operating experience, ongoing qualification, or combined qualification. NUREG-0588 3.11-7 DRAFT Rev. 3 - April 1996 (endorsed by the Commission Memorandum and Order CLI-80-21 dated May 23, 1980), "Interim Staff Position on Electrical Equipment," discusses the staff position and acceptance criteria on the environmental qualification of electrical equipment. These criteria are general in nature and could also be applied to the mechanical equipment. The environmental design and qualification of equipment is acceptable when it is ascertained that the criteria of NUREG-0588 have been met.74 b. Regulatory Guide 1.89 provides guidance for implementing the requirements and criteria of 10 CFR 50.49 for environmental qualification of electrical equipment that is important to safety and located in a harsh environment. Regulatory Guide 1.89 indicates that the provisions of IEEE Std 323 are acceptable to the staff and provides supplementary guidance for satisfying the Commission's regulations regarding the environmental qualification of electrical equipment located