Safety Regulations For The Use Of Submersible Pumps

Jan 10, 2025

1. Submersible pumps should be installed in a sturdy basket before being placed in the water, or a sturdy protective net can be set up around the pump in the water. The pump should be upright in the water, with a depth of not less than 0.5m, and should not be used in water containing a large amount of mud and sand.

2. When placing or lifting a submersible pump into or out of the water, the power should be cut off first, and pulling cables or water pipes is strictly prohibited.

3. Submersible pumps should be equipped with protective grounding and leakage protection devices. During operation, no people or animals are allowed to enter the water surface within 30 meters around the pump.

4. Before starting, check and confirm:

(1) The water pipes are securely tied;

(2) Tighten the screw plugs for air release, water release, oil injection, etc;

(3) The impeller and inlet joint are free of debris;

(4) Good electrical insulation.

5. After connecting the power supply, a trial run should be conducted to check and confirm that the rotation direction is correct, and the running time without water should not exceed the specified time in the user manual.

6. Regularly observe changes in water level, and the distance from the center of the impeller to the horizontal should be between 0.5 and 3.0 meters. The pump body should not be submerged in sludge or exposed to the water surface. The cable shall not rub against the well wall or pool wall.

7. The starting voltage should comply with the instructions in the user manual. When the current exceeds the limit specified on the nameplate, the machine should be stopped for inspection, and frequent power on and off should be avoided.

8. When the submersible pump is not in use, it should not be submerged in water for a long time and should be placed in a dry and ventilated room.

9. The insulation resistance of the stator winding of the electric motor shall not be lower than 0.5M Ω.