Study on the decoupling analysis technology of the typical cost elements of power grid transport maintenance based on data analysis and Tapio modelYao Fang, Lingyun Jiang, Jiali Sha, Liangchen Zhu and Tianxiang RuiE3S Web Conf., 625 (2025) 01012DOI: https://doi.org/10.1051/e3sconf/202562501012