Document: NUREG-0800
Document ID: 22d810e7-740f-4bf3-8bcd-8e3f969ca03f
Document Type: srp
Title: OVERHEAD HEAVY LOAD HANDLING SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070510.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.1.5
CFR Part: 
CFR Title: 

Content:
requires that structures, systems, and components important to safety be protected against the effects of missiles. GDC 4 is applicable to SRP Section 9.1.5 because GDC 4 specifies protection against the effects internally generated missiles (i.e., roped loads). A dropped heavy load in a critical area could cause a release of radioactive materials, a criticality accident, the inability to cool fuel within the reactor vessel or spent fuel pool, or prevent safe shutdown of the reactor. Positions C.3 and C.5 of Regulatory Guide 1.13 provide guidance for meeting these requirements. Meeting these requirements provides assurance that structures, systems, and components associated with the OHLHS will perform their functions safely.27 3. Compliance with GDC 5 requires that structures, systems, and components important to safety shall not be shared by nuclear power units unless it can be shown that such sharing will not significantly impair their ability to perform their safety function, including, in the event of an accident in one unit, an orderly shutdown and cooldown of the remaining units. GDC 5 is applicable because the OHLHS may be shared in multiple-unit plants. A single failure of the OHLHS will not cause a dropped load; therefore, its safety function will not be impaired nor will it prevent the safe shutdown and cooldown of either or both units. SRP Section 9.1.5 provides guidance to meet these requirements. Meeting this requirement provides assurance that the OHLHS and associated components will continue to perform their required safety functions if is shared by nuclear power units given a single failure of the OHLHS.28 4. Compliance with GDC 61 requires, in part, that fuel storage and handling, radioactive waste, and other systems that may contain radioactive materials be designed in manner that ensures adequate safety under normal and postulated accident conditions. 9.1.5-7 DRAFT Rev. 1 - April 1996 The requirements of GDC 61 are imposed on SRP Section 9.1.5