Document: NRC Regulatory Guide
Document ID: 0b9a3243-ab39-402c-9f4b-215c6e4f79ab
Document Type: regulatory_guide
Title: Inservice Inspection of Ungrouted Tendons in Prestressed Concrete Containments (Rev. 3)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0037/ML003740007.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.35
CFR Part: 
CFR Title: 

Content:
des may be purchased from the Government Printing This guide was Issued after consideration of comments received from Office at the current GPO price. Information on current GPO prices may the public. Comments and suggestions for Improvements in these be obtained by contacting the Superintendent of Documents, U.S. guides are encouraged at all times, and guides will be revised, as ap- Government Printing Office, Post Office Box 37082, Washington, DC propriate, to accommodate comments and to reflect new Information or 20013-7082, telephone (202)275-2060 or (202)275-2171. experience. Written comments may be submitted to the Regulatory Publications Issued guides may also be purchased from the National Technical Infor Branch, DFIPS, ADM, U.S. Nuclear Regulatory Commission, Washing- mation Service on a standing order basis. Details on this service may be ton, DC 20555. obtained by writing NTIS, 5285 Port Royal Road, Springfield, VA 22161. between the pairs of buttresses and from various heights. The samples for each inspection may be se lected any time prior to the inspection. Since inspec tions can be performed when the plant is operating, there may be certain areas where inspection of a ran domly selected tendon might result in some radiologi cal exposure to the inspecting personnel. The posi tion provides for substituting a readily accessible tendon for such a tendon. Regulatory Position 3 describes the areas and ex tent of visual examinations during each inspection. Regulatory Position 4 presents the criteria for performing prestress monitoring tests. Regulatory Position 5 states the extent and scope of tendon material testing. Regulatory Position 6 lists items that should be considered in the inspection of sheathing filler grease. In order to assess the potential grease leakage, a rec ommendation is made to compare the amount of sheathing filler grease removed with that being re placed. Regulatory Position 7 discusses the individual cri teria for evaluating