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KJX交流集选控制电梯一般安装在高层建筑物内,根据消防工作的需要,用户大都要求电梯设计成消防梯。即在KJX的电气线路中增加底层辅助继电器1JZ2、消防专用继电器JFR、消防工作继电器JCF、消防返回继电器JCK四个,均安装在控制屏上,还设置一个消防开关ZCF,安装在底层厅门外的消防专用开关箱内。我们知道,一旦大楼起火,消防员首要任务就是要迅速去除消防专用开关箱上的玻璃面板,然后合上消防开关ZCF,此时不管电梯运行在何种状态下:1.电梯正在向上或向下运行;2.轿厢正处于停站时;3.轿厢刚离开底层向上出发,尚在正常停层距离之内,电梯均应能
KJX exchange selection control elevators are generally installed in high-rise buildings. According to the needs of fire protection work, most users require elevators to be designed as fire ladders. That is, four additional auxiliary relays 1JZ2, fire-fighting relays JFR, fire-fighting relays JCF, fire-fighting return relays JCK are added to the electrical wiring of the KJX, all of which are installed on the control panel. A fire-fighting switch ZCF is also installed outside the bottom door. Fire inside the switch box. We know that once the building catches fire, the firefighter’s primary task is to quickly remove the glass panel from the fire protection switch box, and then close the fire switch ZCF, regardless of the state of the elevator operation: 1. The elevator is moving up or down Operation; 2. When the car is at the stop; 3. The car has just left the ground floor and is still within the normal stopping distance. The elevator should be able to