The Line-broken Analysis of the Aluminum Conductor Composite Core Chufan Xue, Dehong Wang, Yong Tang, Guorong Chen, Yongchang Lin, Junfeng Bai and Yanzhong Ju E3S Web Conf., 136 (2019) 04039 Published online: 10 December 2019 DOI: 10.1051/e3sconf/201913604039