Elements in the electric control cabinet shall be uniform.The air switch, soft starter, contactor and thermorelay, etc shall be produced by the same manufacturer, such as ABB, Siemens, Schneider, etc.

• 电气控制箱内的元器件应基本统一，空气开关、软起动器、接触器、热继电器等均应采用同一世界著名制造商的品牌，如ABB、西门子、施耐德。