Abstract: An aerial inspection system has at least one transmission line, an aerial vehicle, and a detection device coupled to the aerial vehicle. The detection device is configured to detect a condition of the transmission line as the aerial vehicle flies across the transmission line. The aerial vehicle may be in the form of a drone.

Abstract: An electric transmission wood pole is selected for installation of a grounding wire using a grounding wire slot cutting device generally having two bases, two elongate guide members, a trolley, and a power tool mounted in the trolley. The two bases are adapted to be strapped to the wood pole. With the grounding wire slot cutting device mounted on the wood pole, a groove is cut along the wood pole. This procedure can be repeated to create a continuous groove along the wood pole. A grounding wire is pushed into the groove, and a sealer is applied over the grounding wire to fill the groove and to seal the grounding wire.