Air compressors are widely used in various manufacturing industries. To produce air, compressors must operate and require electrical support. Moreover, the amount of electricity consumed by compressors during operation is immense. Neglecting electrical safety during production can lead to disasters. Here, we have summarized the following distribution specifications for air compressors for the general users:

During the electrical installation of an air compressor, ensure the accuracy of the power voltage. The main power supply for the compressor is 380V, 50Hz.

2. Based on the power rating of the air compressor used, select the appropriate wire gauge for the power cable. Do not use a smaller cable, as it may overheat and burn due to excessive load. The power cable must be a multi-strand copper-core cable, with a three-phase four-wire system including one phase grounded.

The air compressor's power supply must be equipped with a disconnect switch to prevent phase loss due to short-circuiting.

4. Select an appropriate air circuit breaker based on the compressor's power rating to ensure the safety of the power system and maintenance.

5. Air compressors must have proper grounding to prevent electric leakage hazards. The grounding wire should not be directly connected to the compressed air supply pipe or cooling water pipe.

6. Suggest using a separate power system for air compressors. Avoid paralleling with other systems of different power consumption, as this may lead to overloading of the main motor and the activation of protective devices, causing the compressor to shut down. This is particularly important for high-power air compressors.

7. The power supply network load should be evenly distributed, voltage drop cannot exceed 5% of the rated voltage, and the voltage difference between phases should be within 3%. There should be no connection points in the power cable between the distribution cabinet and the air compressor.