What Are The Key Points To Pay Attention To When Using Submersible Electric Pumps

May 07, 2026

Pre use inspection work:

(1) Check if there are cracks in the casing of the submersible pump. If there are cracks, it cannot be used.

(2) Check if the seals at the discharge holes, drain holes, oil discharge holes, and cable joints of the submersible pump are loose.

(3) Check the insulation resistance of the submersible pump. Use a 500V insulation resistance meter to test, and the insulation resistance should not be less than 5m Ω. If it is lower than this value, open the drain and vent holes, dry or sun dry before use.

(4) It is best not to have joints in the cable of the submersible pump. If there are joints, they should be wrapped properly, and the entire cable should be free of damage or breakage. Otherwise, a new cable should be replaced. Additionally, the cable should be overhead and not too long.

(5) Before starting, calibrate the positive and negative poles of the power supply to prevent the water pump from reversing and not producing water.

 

 

(6) Before starting up, conduct a comprehensive inspection of the power supply lines and switches, and run them on the ground for 3-5 minutes. If they operate normally, put them into water and put them into use.

Different models of submersible pumps should use appropriate submersible electric pumps in suitable locations according to the specified head.