OHL condition monitoring and engineering solutions to cinch maximum admissible transmitting capacity

The report provides results for evaluation of a number of OHL technical condition, witnessing that actual values of conductor Every Day Stress (EDS) are considerably less than tension loads producing risk of conductor damage due to vibration and other external impact. This makes it possible to recommend conductor retention, that ensures clearance increase as much as it is required to increase conductor transmitting capacity up to 40-80 %. Upon completion of monitoring activities using most recently developed technical means, parameters of increased capacity of a number of 110 kV and 400 kV OHL have been studied. Upon analysis of the mentioned OHL condition, a prospect of their considerable extra capacity increase was shown as a result of tension adjustment and increasing conductor clearance to ground and crossed objects.