JIG AND LAYING METHODS
In order to solve the foregoing problems, an object of the present invention is to provide a jig and a laying method capable of laying a branch wire which can avoid a contact with a house or passersby and eliminating an unbalanced load of a utility pole erected in a confined area. According to the present invention, since a first member of the jig is connected to a distal end of the utility pole by an upper branch wire and a second member of the jig is connected to the ground by a lower branch wire perpendicular to the ground, the utility pole can be laid in a confined area while securing an attachment angle of the upper branch wire with respect to the utility pole and eliminating an unbalanced load of the utility pole. By securing an optimum separation distance between the utility pole and the lower branch wire, a risk of contact with a house or passersby can be reduced.
1 . A jig of which one end is configured to be attached to a surface of a utility pole to be perpendicular to the utility pole, the jig comprising:
a first member configured to hold an upper branch wire connected to a top portion of the utility pole at another end; and
a second member configured to hold a lower branch wire connected to a ground in parallel with the utility pole.
2 . The jig according to claim 1 , further comprising an expansible mechanism that makes a length in a longitudinal direction variable.
3 . A laying method comprising:
attaching one end of a rodlike jig to a surface of a utility pole to be perpendicular to the utility pole;
connecting another end of the rodlike jig to a top portion of the utility pole by an upper branch wire; and
connecting the other end of the rodlike jig to a ground by a lower branch wire so that the lower branch wire is parallel to the utility pole.
4 . The laying method according to claim 3 , further comprising:
calculating an unbalanced load applied to the utility pole;
acquiring a relationship between a length of the rodlike jig in a longitudinal direction and a load amount generated in the upper branch wire;
finding the length of the rodlike jig for eliminating the unbalanced load from the relationship; and
setting the length of the rodlike jig attached to the utility pole to the length found from the relationship.