Research on Scale Model of Typical Tension String of UHVDC Transmission Lines under Ice-Shedding Loads

Abstract Tension insulator string is one of the important components transmission lines and it needs to have enough mechanical strength transfer load between conductors towers. However, due large size tension strings, usually impossible carry out true type experiments. In this paper, dimensional analysis was adopted establish mapping scale models typical namely 8N42-50100-55P at first. Then, scaling ratios three strings were obtained based on results ice shedding calculation an actual UHVDC lines. Finally, dynamic experiments carried access feasible technical route provide a support for following research.