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: 

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ascertained that all three requirements are met. 2. At the time of the CP and OL application, complete and auditable records must be available (and maintained at a central location) which describe the environmental 65 qualification method used for all mechanical and electrical equipment in sufficient detail to document the degree of compliance with the requirements discussed herein. Thereafter, such records should be updated and maintained current as equipment is replaced, tested, or otherwise qualified. 3. Harsh Environment a. The specificSpecific criteria for assessing the acceptability of the environmental 66 67 qualification program of OL applicants are provided in NUREG-0588, "Interim 68 Staff Position on Environmental Qualification of Safety-Related Electrical Equipment," issued in December 1979Revision 1, July 1981. NUREG-0588 69 (endorsed by the Commission Memorandum and Order CLI-80-21, dated May 23, 1980), discusses the staff position and acceptance criteria on the environmental qualification of electrical equipment. These criteria are general in nature and can also be applied to mechanical equipment. NUREG-0588 70 includes two sets of qualification requirements, Category I and Category II. ,which relate to IEEE 323-1974 and 1971 respectively. Category II is for plants whose construction permit SERs were dated before July 1, 1974 unless the licensee made a commitment in the construction permit record to use the 1974 standard, or unless the operating license application indicates the 1974 standard is to be used in which case, Category I will be the applicable criteria to be used. Category I is for plants whose construction permit SERs were dated after July 1, 1974. Category I refers to IEEE Std 323, "IEEE Standard for Qualifying Class 1E Equipment for Nuclear 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