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:
ents for construction are not identical to those required for pre- manent plant service, the construction operating require- ments should be completely defined separately. The crane should be designed structurally and mechanically for the construction loads, plant service loads, and their functional performance requirements. At the end of the construction period, the crane handling system should be adjusted for the performance requirements of the nuclear power plant service. The design requ.-ments for conversion or adjustment may include the replacement of such items as motor drives, blocks, and reeving sys- tem. After construction use, the crane should be thor- oughly inspected by nondestructive examination and performance tested. If allowable design stress limits are to be exceeded during the construction phase, added inspection supplementing that of regulatory position C.l.d should be considered. If the load and performance requirements are different for construction and plant service periods, the crane should be tested for both phases. Its integrity should be verified. by designer and manufacturer with load testing to 125% of the design rated load required for the operating pl~t before it is used as permanent plant equipment. u. Installation instructions should be provided by the manufacturer. These should include a full expla- nation of the crane handling system, its controls, and the limitations for the system and should cover the require- ments for installation, testing, and preparations for oper- ation. 4. Mechanical Check, Testing, and Preventive Maintenance a. A complete mechanical check of all the crane systems as installed should be made to verify the method of installation and to prepare the crane for testing. During and after installation of the crane the proper assembly of electrical and structural com- ponents should be verified. The integrity of all control, operating, and safety systems should be verified as to satisfaction of installation and