HEAT RESISTANT RADIATION RESISTANT CABLE AND FURNACE STRUCTURE INSPECTING DEVICE FOR FAST BREEDER REACTOR USING THIS CABLE

摘要

PURPOSE:To provide a coaxial cable and power cable of high reliability excellent in heat resistance, flexibility and an electric characteristic and a furnace internal structure inspecting device for a fast breeder reactor using these cables, useful for the furnace internal structure inspecting device for the fast breeder reactor. CONSTITUTION:In a coaxial cable formed by successively providing an insulator layer 2, external conductor 3 and a protective coating 4 on an internal conductor 1, the insulator layer 2 is constituted of an extrusion coating of thermoplastic polyimide with a formula repetition unit serving as a basic skeleton. The protective coating 4 is constituted of an extrusion coating of thermoplastic polyimide or PEEK.