Transmission line towers are crucial infrastructural facilities that play a vital role in supporting electrical transmission networks. These towers are often installed in challenging terrains, such as mountainous areas, and are situated at considerable heights, making them difficult to maintain without specialized teams.

(Used components) Cross arm, tower body, spacer

• Cross arm: A horizontal extension from a transmission tower that provides support for overhead transmission lines through the use of insulators.
• Tower body: A steel truss structure forming the main framework of the transmission tower.
• Spacer: A component designed to maintain proper spacing between individual electric wires that are attached to the tower.

• Locations where maintenance is challenging due to mountainous terrains or elevated positions.
• Plating or coating applied between steel tower members or on the bearing surfaces of bolts and nuts on the cross arm may weaken over time due to repeated wind loads. This can lead to loosening of the screws.
• In the tower body, during typhoons or earthquakes, significant wind pressure or seismic loads act on the shear joints between the diagonal members and the main column members. This can cause rotational loosening of the screws.
• Spacers are utilized to prevent galloping, particularly in areas prone to snowfall.

• Successful elimination of screw loosening, resulting in a considerable extension of the inspection interval.
• Inspection process does not involve any re-tightening work, saving time and reducing workload and costs.
• Enhanced structural integrity prevents collapse and ensures an uninterrupted power supply, even in the event of natural disasters such as typhoons or earthquakes.