Abstract: A power transmission structure maintenance apparatus is disclosed. The power transmission structure maintenance apparatus includes a first climber; a second climber spaced from the first climber; a carrier assembly positioned between the first and second climbers and slidably connected at a first end to the first climber and at a second end to the second climber; and a carriage positioned on the carrier assembly and including a robotic arm. The carriage is moveable along the carrier assembly to position the robotic arm in a pre-determined position along a power transmission structure to allow the robotic arm to perform maintenance on the power transmission structure.

Abstract: A system configured to provide cathodic protection to buried and/or submerged metal components and/or structures, such as pipes is disclosed. The system includes a cathodic protection apparatus having at least one upright support and a plurality of sacrificial anodes secured to the at least one upright support in a vertical orientation to provide variable cathodic protection to the metallic structures.

Abstract: A system configured to provide cathodic protection to buried and/or submerged metal components and/or structures, such as pipes is disclosed. The system includes a cathodic protection apparatus having at least one upright support and a plurality of sacrificial anodes secured to the at least one upright support in a vertical orientation to provide variable cathodic protection to the metallic structures.

Abstract: An apparatus and method for assessing subgrade corrosion is disclosed. The apparatus is configured to assess soil corrosivity and subgrade corrosion of a structure without disturbing the site where the structure resides and includes a probe having a plurality of electrodes and sensors configured to conduct environmental and corrosion measurements at the site, and a controller having a potentiostat contained therein to determine a corrosion rate at the site, wherein the corrosion rate provides an indicator of the amount of corrosion of the structure over time.

Abstract: An apparatus and method for evaluating power transmission conductors is disclosed. The apparatus is configured to evaluate a charged power transmission conductor at a distance and includes a telescope assembly configured to transmit light to the conductor and receive a reflected light, in response to the transmitted light, from the conductor. The apparatus further includes control electronics configured to analyze the reflected light and determine a ratio based on two pre-determined frequencies, wherein the ratio is correlated with levels of iron oxide corrosion to confirm the presence of oxides that have leached through strands of the conductor.

Abstract: An apparatus and method for assessing subgrade corrosion is disclosed. The apparatus is configured to assess soil corrosivity and subgrade corrosion of a structure without disturbing the site where the structure resides and includes a probe having a plurality of electrodes and sensors configured to conduct environmental and corrosion measurements at the site, and a controller having a potentiostat contained therein to determine a corrosion rate at the site, wherein the corrosion rate provides an indicator of the amount of corrosion of the structure over time.

Abstract: An apparatus and method for evaluating power transmission conductors is disclosed. The apparatus is configured to evaluate a charged power transmission conductor at a distance and includes a telescope assembly configured to transmit light to the conductor and receive a reflected light, in response to the transmitted light, from the conductor. The apparatus further includes control electronics configured to analyze the reflected light and determine a ratio based on two pre-determined frequencies, wherein the ratio is correlated with levels of iron oxide corrosion to confirm the presence of oxides that have leached through strands of the conductor.