描述
电源线是用作电气组件或设备与电源的连接线，通常来说指电线与其一端连接的插头或尾插的集合体，是电器产品的基本零部件之一。电源线分为电线和插头两部分。
和I／O线应分别配线，隔离变压器与PLC和I／O之间应采用双绞线连接。将PLC的I／O线和大功率线分开走线，如必须在同一线槽内，分开捆扎交流线、直流线，若条件允许，分槽走线最好，这不仅能使其有尽可能大的空间距离，并能将干扰降到最低限度。
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