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10 操作板和安装在机械上的控制器件10.1 总则 本章包含对外装或局部露出外壳安装的器件的要求。 这些器件应按IEC 73和IEC 447选择、安装和标志或编码,并尽可能适用。10.1.1 位置和安装 为了适用,安装在机械上的控制器件应 ——维修时易于接近; ——安装得使由于操纵设备或其他可移设备引起损坏的可
10 Control Panels and Mechanical Control Devices 10.1 General This chapter contains requirements for externally mounted or partially exposed enclosure-mounted devices. These devices shall be selected, installed and marked or coded in accordance with IEC 73 and IEC 447 and shall be used wherever applicable. 10.1.1 Location and Installation In order to be applicable, control devices installed on the machine shall be - accessible for maintenance purposes; - be installed so that damage caused by handling equipment or other removable equipment may be