Working installation metallic parts null of reverse clipping mat for atomic power generation plant radiological defense

摘要

PURPOSE: To ensure working space and reduce radioactive amount by constituting a shielding mat fixing metal for radiation protection with a movable part (cam follower). ;CONSTITUTION: As the space in a nuclear power plant building is limited, a movable fixing metal 1 is fixed and a shielding mat 2 for radiation protection is placed making use of pipe support 3 and the like of existing equipments. The movable fixing metal 1 is constituted of a movable part (cam follower) 4, bolts 5, hungers 6 and has a structure movable in axial and circumferential of the pipe support 3. By making the shielding mat for radiation protection movable, maintainability is improved. Also, in movable one compared with fixed one, eternization becomes possible and consequently radioactive waste amount can be reduced, Exposure of workers is reduced and arrangement in the building and safety are improved.;COPYRIGHT: (C)1995,JPO