主要介绍了对该集装箱正面吊的安全要求及相应的电气设备, 其锁箱、吊臂及吊架控制电路的工作情况, 结构特点, 强调了在使用、维护中应注意的问题。关键词: 控制; 继电器; 传感器; 回路; 联锁保护; 特点Abstract : This article introduces the safety demands of this hoister and the correspordent electrical equipments as well as the working situation and the structual features of its lock box , the hanger and the hanger control circuit . The points for attention in op2 eration and maintenance are also emphasized.Key words : control ; relay ; sensor ; return circuit ; coupling lock protection ; features