| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an insulated crossarm to draw a wire for a distribution line which has a simplified construction for fitting to a pole. SOLUTION: A square-pillar-shaped crossarm main body 1 of a prescribed length which is fitted horizontally to a pole and constituted of an insulation member 2 such as FRP is formed, while an insulation clamp body part 9 having a structure wherein a pedestal part 5 for a clamp main body provided with a wire supporting groove 3 intersecting perpendicularly the longitudinal direction of the crossarm main body 1 is provided in projection at upper-side positions in the opposite end parts and the middle part of this crossarm main body 1 and wherein a wire holder 6 provided with a wire holding groove 3' opposite to the wire supporting groove 3 and constituted of an insulation member such as the FRP is fitted pivotally at one end on the side of the pedenstal part for the clamp main body and held by a prescribed fastening means, is constructed integrally. A wire is held by the crossarm main body 1 and between the wire supporting groove 3 and the wire holding groove 3' of each insulative clamp body part 9 and clamped.</p> |
