Document: NRC Regulatory Guide
Document ID: a1541707-8144-409c-8842-4ea7d4b8ef4e
Document Type: regulatory_guide
Title: 10/2019 (Rev. 19)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1912/ML19128A244.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.147
CFR Part: 
CFR Title: 

Content:
the weld overlay repair is only acceptable until the next refueling outage. N-661-1 Published on 10/11/05 N-661-1 Alternative Requirements for Wall Thickness Restoration of Class 2 and 3 Carbon Steel Piping for Raw Water Service, Section XI, Division 1 N-661-2 Published on 3/22/07 RG 1.147, Rev. 19, Page 38 CODE CASE NUMBER TABLE 5 SECTION XI CODE CASES THAT HAVE BEEN SUPERSEDED DATE N-661-2 Alternative Requirements for Wall Thickness Restoration of Classes 2 and 3 Carbon Steel Piping for Raw Water Service, Section XI, Division 1 (1) In Paragraph 4(b), for repairs performed on a wet surface, the overlay is only acceptable until the next refueling outage. (2) In Paragraph 7(c), if the cause of the degradation has not been determined, the repair is only acceptable until the next refueling outage. (3) The area where the weld overlay is to be applied must be examined using ultrasonic methods to demonstrate that no crack-like defects exist. (4) Piping with a wall thickness that is less than the diameter of the electrode shall be depressurized before welding. N-661-3 Published on 4/25/16 N-662 Alternative Repair/Replacement Requirements for Items Classified in Accordance with Risk-Informed Processes, Section XI, Division 1 N-662-1 Published on 6/25/11 N-666 Weld Overlay of Class 1, 2, and 3 Socket Welded Connections, Section XI, Division 1 A surface (magnetic particle or liquid penetrant) examination must be performed after the seal weld and weld overlay are installed on Class 1 and 2 piping socket welds. The fabrication defects, if detected, must be dispositioned using the surface examination acceptance criteria of the construction code identified in the repair/replacement plan. N-666-1 Published on 3/12/12 N-686 Alternative Requirements for Visual Examinations, VT-1, VT-2, and VT-3, Section XI, Division 1 N-686-1 Published on 1/10/07 N-694 N-694-1 Evaluation Procedure and Acceptance Criteria for PWR Reactor Vessel Upper Head Penetration, Section XI, Division 1 (1) The