Terminal connector are mainly used in the splicing of substation busbar downledad and electrial equpment like transformor,circuit cutout,disconmect switch,wall bushing and so on.Because the electrical egrupment and outlet line terminals are lupper and aluminum alloy and the doronlead busbov are AAC and ACSR,the terminal connectors are derided into.Al ter winal connector and Cu-Al transition damp from the waterial. While from the installation ways and structiwe,they are derided into bolt type and compression type.At last,they are devidec into 0°45°and 90°from the difference of the avgle.Between down lead and the terminal of the installed equiment.