Review of 'Vibration damping required for overhead lines'

This work provides a great effort and guidance for overhead lines (OHLs) maximum expected installation tension without the need for the installation of vibration dampers. This work provides good results and comparisons for the different sizes of bi-metallic ACSR OHL conductors. The comparisons took into account the IEEE maximum vibration loop velocity limit of 200mm/s. However, the author did not consider the installation conditions other than the everyday stress at 20% of the conductor rated-breakage-strength. It would have had been better to provide a guidance to utilities when considering severe weather conditions (i.e., very low operating temperatures/high operating temperatures. Additionally, bi-metallic conductors experience the so-called knee-point where the tensile strength is transferred between the steel core and aluminium. Therefore, it would have been more comprehensive have the ACSR conductors been evaluated after and below the knee-point. Overall, this work is well-written and structured with the recommendation to expand this work and examine the IEEE standard limit for bi-metallic conductors at different operating conditions (highlighted above). Having considered these points would allow to implement this work to examine novel conductor designs (i.e., bi-material conductors) such as High-Temperature Low-Sag conductors.