Assembly component of compression type anchor clamp, anchor structure of power-transmission line and method of constructing compression type anchor clamp

An anchor structure of a power-transmission line comprising:

• the power-transmission line including
• a core portion in which a plurality of element wires are stranded, the element wires each having carbon fiber as the main constituent, and
• a conductive portion in which a plurality of aluminum element wires are stranded at an outer periphery of the core portion;
• and
• a compression type anchor clamp that is anchored to an anchoring target by being compressed with an end portion of the power-transmission line,
• wherein the compression type anchor clamp includes
• a housing tube including an inner peripheral surface that is formed to fill strand grooves of the core portion and adheres to the core portion along an outer peripheral outline of the core portion,
• a core portion compression member made of steel and including an inner peripheral surface that adheres to the housing tube along an outer peripheral outline of the housing tube, and
• a conductive portion compression member made of pure aluminum or an aluminum alloy and including an inner peripheral surface that adheres to the core portion compression member along an outer peripheral outline of the core portion compression member, and
• wherein the housing tube is constituted by pure aluminum or an aluminum alloy, and continuously provided in its cylindrical direction without a gap,
• wherein the core portion compression member includes three or more compression traces formed to align in an axial direction of the core portion compression member, said compression traces being formed so as to overlap with a housing hole that houses the housing tube,
• wherein an interval between two adjacent compression traces of the core portion compression member at positions closest to an open side of the core portion compression member is longest among intervals between other two adjacent compression traces,
• wherein the core portion compression member includes an inclined portion, provided at an open side of the housing hole, whose outer diameter decreases toward an open end of the housing hole, and
• wherein the length of the inclined portion is greater than or equal to ½ times and less than or equal to twice of the outer diameter of the core portion compression member.