Document: NUREG-0800
Document ID: 96185d4c-1b6a-42fc-8383-9a85fb0e57e4
Document Type: srp
Title: OVERHEAD HEAVY LOAD HANDLING SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0703/ML070380201.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.1.5
CFR Part: 
CFR Title: 

Content:
y Cranes.” D. The crane should be inspected, tested, and maintained in accordance with chapter 2-2 of ASME B30.2-2005 “Overhead and Gantry Cranes” prior to use. E. Special lifting devices should satisfy the criteria of ANSI N14.6 or, if special lifting devices are not used, slings should be selected to satisfy the criteria of ASME B30.9. F. The crane should be designed to the criteria specified in CMAA-70, 2000 and Chapter 2-1 of ASME B30.2-2005. 9.1.5-6 Revision 1 - March 2007 4. The licensee describes a method for satisfying one of the following criteria: A. Mechanical stops or electrical interlocks to prevent movement of heavy loads over irradiated fuel or in the proximity of equipment essential for safe shutdown (i.e., a single load drop should not disable redundant trains of a system necessary for safe shutdown). B The licensee demonstrates by analysis that: i. Releases of radioactive material from damage to spent fuel based on calculations involving accidental dropping of a heavy load would be equal to or less than 1/4 the limits of 300 rem thyroid, 25 rem whole body as stated in 10 CFR Part 100. ii. Damage to fuel or fuel storage racks from a dropped heavy load would not cause a configuration of the fuel causing Keff to exceed .95. iii. Damage to the reactor vessel or spent fuel pool from a dropped load would not cause water leakage that uncovers the fuel. iv. Damage to equipment will be limited in redundant or safe shutdown paths with no loss of safe shutdown functions. C. The likelihood of failure is extremely low due to a single failure-proof handling system. A single failure-proof handling system consists of the following two elements: i. The crane should be designed to the criteria of NUREG-0554. Cranes designed to the criteria of ASME NOG-1 2004 for a Type 1 crane are acceptable under the guidelines of NUREG-0554 for construction of a single failure-proof crane. Consistent with Paragraph 10 of NUREG-0554, a quality assurance program should cover