Abstract: The present disclosure is related to providing an overhead transmission line spacer which can suppress galloping caused by strong wind in the three-conductor transmission line formed of three overhead transmission lines. An overhead transmission line spacer comprising: three clamps configured to individually hold three overhead transmission lines; and a frame body including support members and a frame portion, and configured to maintain separations between the three overhead transmission lines via the three clamps, the clamps being attached to the support members, and the frame portion maintaining separations between the support members, wherein two out of the three clamps are movable clamps, each of which is configured to hold one of the overhead transmission lines in a rotatable manner about the one of the overhead transmission lines, and one out of the three clamps is a fixed clamp configured to hold one of the overhead transmission lines without allowing rotation.

Abstract: The present disclosure is related to providing an overhead transmission line spacer which can suppress galloping caused by strong wind in the three-conductor transmission line formed of three overhead transmission lines. An overhead transmission line spacer comprising: three clamps configured to individually hold three overhead transmission lines; and a frame body including support members and a frame portion, and configured to maintain separations between the three overhead transmission lines via the three clamps, the clamps being attached to the support members, and the frame portion maintaining separations between the support members, wherein two out of the three clamps are movable clamps, each of which is configured to hold one of the overhead transmission lines in a rotatable manner about the one of the overhead transmission lines, and one out of the three clamps is a fixed clamp configured to hold one of the overhead transmission lines without allowing rotation.

Abstract: An overhead line damper capable of suppressing a lift force that an overhead line receives due to wind is provided. A damper 1 for an overhead line that is provided at an overhead line L2 includes a clamping mechanism (a pair of hinge pieces 21a and 21b) that is fitted to an outer circumferential surface of the overhead line L2, and a rotary member 4 with a lower part attached to weights 3a and 3b, and an upper part rotatably attached to the clamping mechanism, and the clamping mechanism has a regulation part (an opening part 24) that regulates a rotation range of the rotary member 4 so that the weights 3a and 3b rotate within an angle range from ±20 degrees to ±40 degrees inclusive in a vertical direction.

Abstract: An overhead line damper capable of suppressing a lift force that an overhead line receives due to wind is provided. A damper 1 for an overhead line that is provided at an overhead line L2 includes a clamping mechanism (a pair of hinge pieces 21a and 21b) that is fitted to an outer circumferential surface of the overhead line L2, and a rotary member 4 with a lower part attached to weights 3a and 3b, and an upper part rotatably attached to the clamping mechanism, and the clamping mechanism has a regulation part (an opening part 24) that regulates a rotation range of the rotary member 4 so that the weights 3a and 3b rotate within an angle range from ±20 degrees to ±40 degrees inclusive in a vertical direction.