Document: NRC Regulatory Guide
Document ID: 626cd346-6298-4966-a92d-c5d4b24bbc2b
Document Type: regulatory_guide
Title: Overhead Crane Handling Systems for Nuclear Power Plants
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1303/ML13038A096.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.104
CFR Part: 
CFR Title: 

Content:
rtent operation. It is essential that the controls be capable of stopping the hoisting movement within amounts of movement that damage would not occur. A 3-inch maxi- mum hoisting movement would be an acceptable stop- ping distance. Operational Tests Operational tests of crane systems should be per- formed to verify the proper functioning of limit switches and safety devices and the ability to perform as de- signed. However, special arrangements may have to be made to test overload and overspeed sensing devices. Existing Handling Systems It may be necessary to determine the extent to which an existing handling system and the areas in which the load is transported may require that the crane handling system be single failure proof. Therefore, a detailed inspection may be necessary to determine the condition of each crane prior to its continued use and to define the portion of, the system that may need alteration, addition, or replacement in order to ensure its ability to perform acceptable handling of critical loads. Quality Assurance Although crane handling systems for critical loads are not required for the direct operation of a nuclear power plant, the nature of their function makes it neces- sary to ensure that the desired quality level is attained. A quality assurance program should be established to the extent necessary to include the recommendations of this guide for the design, fabrication, installation, testing, and operation of crane handling systems for safe handling of critical loads. C. REGULATORY POSITION When an applicant chooses to provide safe handling of critical loads by making the overhead crane handling system single-failure proof rather than by adding special features to the structures and areas over which the criti- cal load is carried, the system should be designed so that a single failure will not result in loss of the capability of the handling system to perform its safety functions. Overhead crane handling systems used for handling critical