SOLID INSULATOR-COVERED CONDUCTOR

PROBLEM TO BE SOLVED: To provide a solid insulator-covered conductor which can prevent coronas and readily uniformize the electric fields of the joints between bus-bars, by preventing cracks in the periphery of the solid insulator covered conductor. SOLUTION: At an end part of an internal conductor 2, a first bus-bar 4 has a contact 9, which is brought into contact with the periphery of the internal conductor 5 of a second bus-bar 7, in such a way as to be freely movable in the axial direction. The second bus-bar 7 has a second flange portion 211 which is elastic, is counterposed to the first flange portion 14 of the first bus-bar 4 and adheres to it closely. On the opposite side of the contact surface of the flange portion 211, an annular press board 12 is provided. The flange portion 14 and the flange portion 211 are tightened up with through-bolts 13, which penetrate through both flange portions 14, 211 and the press board 12, and a recess 111a is formed in a surface brought into contact with the press board 12 of the flange portion 211 at its part near the internal peripheral part of the press board 12. In addition, the contact surface 211b of the flange portion 211 is inclined, so as to gradually separate from the center toward the outside diameter direction.