Double suction pump is a kind of general-purpose mechanical equipment with a wide range of applications. In order to pay attention to the efficiency of double suction pump, the manufacturer will introduce some wiring methods for its cable.
1. Peel off the outer sheath and main insulation layer of the double suction pump cable, expose the copper wire 35-40mm, taper the rubber near the wire core, polish the oxide layer on the wire core, and wipe the wire core and the insulation and sheath layer to be bound with alcohol to make it natural and dry.
2. Prepare 500W electric soldering iron, rosin, solder, LMM bare copper wire and insulating tape.
3. The bare copper wire is used to tie the cable core evenly, and the electric soldering iron is used to heat and infiltrate tin, so as to request soaking and even infiltration. Repair the flat welding part with a file (burr and sharp shuttle are not allowed), clean the part to be bound with alcohol again and dry it in the air.
4. First, the self-adhesive butyl tape is used to wrap three layers in half, and gradually extend to the outside of the core. When binding, the tape should be stretched 200%, and the outer layer should be covered with PVC adhesive tape for three layers, gradually extending outward to ensure that the binding part is not less than 200 mm
5. When three core cable joint, the three joint positions should be staggered at a certain interval in order to avoid short circuit.
6. The wiring method when the cable leading out the double suction pump is double cable: after the cable is connected, the insulation resistance between the cable and the motor (without water) shall be measured by shaking, and the value shall not be less than 150 megohm; After the motor is filled with water, the insulation resistance of the motor winding should be no less than 40 megohm; Turn on the power to test the steering (the time should not exceed 2 seconds). Do a good job of the continuous position sign; Start to go down the well: while going down the well, measure the insulation resistance and observe its change from time to time, so as to prevent the cable insulation from hanging on the well wall. If it is found that the insulation level drops rapidly below 0.5 megohm, the unit shall be put up for detection.
The above is about the cable connection method of double suction pump. If you still have something you don't understand, you can call us. If you want to understand more about double suction Zhongkai, please pay attention to our website update at any time.