Influencing factors and optimization methods for transmission line stringing construction based on DEMATEL-ISM

The development of the social economy cannot do without electric power energy. In the process of power transmission, the laying construction of transmission lines plays a very important role in the power grid. With the development of the power grid, its role has become more prominent. However, the current research on the tensioning construction of transmission lines neglects systematicness. To address this issue, this study uses the DEMATEL-ISM method to analyse the correlations and hierarchical structures among various factors and constructs a 12-factor influence system. The direct influence matrix was constructed based on the expert scores, the centrality and cause degree of the relevant factors were calculated, and then the six hierarchical structures were divided using ISM. It is found through research that the interference of the line environment is the core driving factor, while the structure of the tower and the assembly accuracy, as well as the tensioning process, are the key intermediate factors. Based on this, targeted strategies are proposed from these three aspects to provide theoretical support for the improvement of construction efficiency and transmission line quality.