Typical failure forms and improvement measures of power grid fastenersZhi Huang, Chao Feng, Jun Liu, Jie Gong, Jiarui Hu, Yi Xie, Wun Wang, Yi Long and Weike LiuE3S Web Conf., 165 (2020) 06020DOI: https://doi.org/10.1051/e3sconf/202016506020