In industrial production and electrical application scenarios, the electric control cabinet system is the core of the operation of electrical equipment. Standardized operation not only concerns the stability of the equipment but also directly affects personnel safety and production efficiency. The following are the key precautions for operating the electric control cabinet system.
1. Comprehensive Pre-operation Inspection
First, observe the appearance of the cabinet for any damage, and check the tightness of the cabinet door. At the same time, ensure that there is no debris accumulated around, no water leakage or humidity, and good ventilation and heat dissipation. After opening the electric control cabinet, carefully check whether the electrical connections are firm and whether the wires are damaged or aged. Also, confirm that components such as circuit breakers and contactors have a normal appearance, indicator lights and instruments display normally, and energy-storage components have been fully discharged.
2. Standardized Operation Process
Strictly follow the procedures for power-on and power-off. When powered on, first close the main power switch, and then close the branch circuit switches; the power-off sequence is the opposite. It is strictly prohibited to pull or close the switch with the load. When setting parameters such as the frequency of the frequency converter and the PLC program, it should be carried out under the guidance of professionals. Carefully check the values and make records after completion. At the same time, try to reduce the frequent operation of vulnerable components such as contactors.
3. Close Monitoring during Operation
Monitor the temperature inside the cabinet through a temperature sensor or by touching the cabinet. If it exceeds the normal range of 0 – 40℃ or there are abnormal noises, stop the machine immediately for troubleshooting. Use ammeters and voltmeters to pay close attention to the current and voltage in real-time. Once abnormal fluctuations are detected, analyze and handle them promptly to avoid equipment damage.
4. Safe Fault Handling
In case of faults such as smoking or fire, immediately press the emergency stop button to cut off the power supply and use a dry – powder fire extinguisher to extinguish the fire. When repairing, disconnect the power supply, hang a warning sign, use professional tools to detect the fault, replace components with the same model, and then conduct tests to ensure that the equipment returns to normal.
Only by strictly abiding by these operating precautions can the safe and stable operation of the electric control cabinet system be ensured, building a solid power defense line for production and daily life.
