INSPECTION SYSTEM FOR LOOP CHAMBER INTERIOR OF NUCLEAR POWER PLANT

PURPOSE:To provide an inspection system low-priced and capable of inspecting the interior of a loop chamber minutely in a wide range by remote operation even during the operation of a plant. CONSTITUTION:An inspection system for the primary loop chamber of a nuclear power plant has a guide pipe 5 formed of plural main routes 3 and branch routes 4 branched off from the main routes 3 by a branching device 6, and disposed at an inspection required place in a loop chamber being provided with a camera head holding device 9 at the tip of the branch route 4. The inspection system further has a drum 12 installed outside of the loop chamber, a feeder 80 capable of inserting and pulling out a rosary like cable 10, wound to the drum 12 being provided with a pusher 13 and the like, into and from the guide pipe 5 by the pusher 13, a camera head 2 provided at the tip of the rosary like cable 10 and removably held to the camera head holding device 9 in an operating part while being tiltable and rotatable in a camera part, and a control panel for remote-operating the branching device 6, the feeder 80 and the camera head 2 from the outside of the loop chamber.