Document: NUREG-0800
Document ID: 62e8a2f9-b438-4ced-8623-3e61ee216490
Document Type: srp
Title: series.22
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070293.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8
CFR Part: 
CFR Title: 

Content:
n SC I-related SSCs for areas of review described in subsection I.C are as follows: DRAFT Rev. 0 - April 1996 3.13-16 1. General requirements for SSCs containing such fasteners are described in 10 CFR 50.55a and General Design Criteria 1, 2, and 4, as outlined in subsection I.B. 2. Design requirements (including material selection and assurance of material compatibility) should include the following: a. Design should be in accordance with recognized codes and standards so that the function of seismic Category I SSCs will not be adversely affected by the failure of fasteners. b. Section VIII of the ASME Code provides information on threaded fastener design applicable to Quality Group D components, as defined in Regulatory Guide 1.26. c. General guidance on the design of bolted mechanical (as opposed to structural) fasteners and joints is found in standard textbooks such as Bickford (Ref. 29); EPRI NP-6316; and Volumes 1, 11, and 13 of the ASM Metals Handbook. d. The AISC Manual of Steel Construction provides acceptable designs for structural connections. e. To the extent practical, minimization of degradation and failure of support fasteners or embedments (e.g., resulting from fatigue, corrosion, inadequate installation, vibration, water hammer, or earthquake) should be emphasized in the design. 3. Maintenance requirements should include the following: a. The applicant should have procedures for refurbishment, cleaning, replacement, and return-to-service. b. Maintenance procedures should comply with EPRI NP-5067, Volume 1 or 2, as appropriate. c. Additional guidance on acceptable maintenance practices can be found in EPRI NP-5769 (as endorsed in Generic Letter 91-17 and NUREG-1339) and standard textbooks such as Bickford (Ref. 29). d. To the extent practical, minimization of degradation and failure of support fasteners or embedments (e.g., resulting from fatigue, corrosion, inadequate installation, vibration, water hammer, or earthquake) should be emphasized in