Submersible pump cable is generally only factory cable, users need to install another cable, so the cable must pay attention to the correct use method, or use submersible pump cable in deep water.

The following pump pipe doctor introduced the connection method of deep well submersible pump:

1. Outer sheath of belt-type submersible pump cable and main insulation layer deep well pump, exposed copper wire 35-40mm, repair rubber near core into a cone, polish oxidation layer core clean, wipe core and insulation layer and sheath layer with alcohol (preferably hydrochloric acid), let it dry naturally.

2, joints,

1) power cable 2)PVC tape 3) self-adhesive butyl rubber tape 4)phi 1mm copper wire 5) solder 6) lead cable

3. Prepare 500W electric soldering iron, rosin, soldering tin, LMM bare copper wire and insulating tape.

4. The cable core shall be evenly tied with bare copper wire, and the electric soldering iron shall heat and infiltrate tin evenly. Polish the welded part smooth with a file (no burrs and sharp hooks are allowed), wipe the alcohol-wrapped part clean and let dry.

5. Use self-adhesive butyl tape to wrap the three layers in half and gradually extend to the outside of the core. When packaging, the tape must be drawn 200%, the outer layer should be wrapped with PVC tape, and the packaging should be divided into three layers and half folded (public number: pump pipe), and gradually extended outward to ensure that the packaging part is not less than 200mm.

6. When connecting the three-core cable, the position of the three-core cable should be staggered a certain distance to prevent short circuit.

7. Connection method when lead submersible pump cable is double-lead cable

1) after the submersible pump cable is connected, measure the insulation resistance between the submersible pump cable and the motor (without adding water), not less than 150 megabytes.

2) after the motor is filled with water, the insulation resistance of the motor winding shall not be lower than 40megohm.

3) turn on the power and test the steering (no more than 2 seconds). Mark the corresponding position,

4) start drilling: when drilling with submersible pump, it is necessary to continuously measure the insulation resistance and observe its change to prevent the insulation skin of submersible pump cable from hanging on the shaft wall. If the insulation level drops below 0.5 megohm, the device should be taken out for testing. If no accident occurs, the completion of the well can begin a test run through the previous steps.