Jumper insulator

An overhead power line structure comprising:

• an overhead power line support;
• an overhead power line carried by the overhead power line support;
• a conductive jumper removably connected between the overhead power line on a first side of the overhead power line support and the overhead power line on a second side of the overhead power line support;
• and
• a member connecting the overhead power line on the first and the second sides of the overhead power line;
• the member comprising at least one insulator with a bore though which a fibre optic cable passes and at least one carrier adapted to carry a fibre optic cable linking one end of the insulator to one side of the overhead power line,
• wherein the member provides electrical protection and mechanical support to the fibre optic cable.

An apparatus for installing a fibre optic cable onto an overhead power line comprising:

• a body which sits upon the overhead power line and is moveable along the overhead power line;
• a supply of fibre optic cable;
• a carriage, also mounted in fixed relation to the body, the carriage being configured to support an insulator;
• and
• a cable guiding means configured to direct fibre optic cable from the supply of fibre optic cable, to the overhead power line, via the carriage.