Investigation of Mechanical Characteristics of Towers Made of Composite Materials for Their Application in Electrical Networks of Ukraine

The analysis of the properties of modern composite materials and the characteristics of towers made of such materials has made it possible to determine the advantages of using fibreglass and basalt plastic towers in electrical networks, which contributes to the spread of composite towers in electrical networks of all voltage classes. An analysis of the world experience of introducing towers made of composite materials was carried out, which showed a steady trend towards an increase in the number of such towers in electrical networks located in remote areas and in areas with difficult climatic and natural conditions. Mathematical modelling of the mechanical characteristics of the state of intermediate and anchor towers made of composite materials was performed, which allows taking into account the peculiarities of load distribution along the tower during its operation in certain climatic conditions, as well as the properties of structures made of polymeric materials during their deformation. Using the proposed mathematical models, the mechanical and technical characteristics were calculated as a result of deformations due to various impacts that are typical for the operation of the investigated towers. The analysis of the determined parameters is carried out and the necessity of taking into account the properties of towers made of composite materials for the development of design standards for power lines with such towers is substantiated.