ANSI/TIA-568-C.0-2009(4)定义:为形成导电通路而将金属部进行的永久连接,可确保电气连通性并有能力安全传导任何可能的附加电流。(Bonding: The permanent joining of metallic parts to form an electrically conductive path that will ensure electrical continuity and the capacity to conduct safely any current likely to be imposed.)