Summary

Recommendation ITU-T K.57 specifies measures to be taken with respect to safety and risk of damage to equipment through earth potential rise when power line towers are used for locating radio base stations.

Locating radio base station antennas in power line towers is mainly of interest in rural areas, where there are no tall buildings where antennas may be installed. At the same time, some precautions have to be taken in order to make the installation safe and not to cause damage to the equipment in case of earth fault, earth potential rise and lightning.