Water Bore Pump submersible water pumps

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  • Water Bore Pump Store
    • Bore Pumps >
      • Grundfos Pumps >
        • Grundfos SP Shop
        • Grundfos SQ Shop
      • Franklin Electric Pumps
      • PM Technology
    • Solar Water Bore Pumps >
      • Grundfos Solar Shop
      • Lorentz Solar Shop
    • Spearpoint Pumps
    • Minesite and Dewatering
    • Replacement Water Bore Pump Motors
    • Pump Protection and Control Units
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    • Submersible Pump Cables
    • Crusader Hose >
      • Flexibore 100 Series
      • Flexibore 250 Series
    • Clearbore
    • Generators
    • Terms of Trade Warranty
  • Send Bore Information
  • How to
    • Fault Finding Guide
    • Submersible Cable Splice Guide
    • Installation Guide
    • Solar Panel Installation
    • Pressure Switch Adjustment
    • Grundfos PRO-tect AUTO ME set-up
    • Grundfos CU200 wiring
    • Submersible Pump Shroud
  • Contact Us
  • Pump Maintenance
  • Water Bore Pump Blog

Submersible pump cable splicing guide

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Contents of submersible pump cable splice kit.

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Tools require to cut, crimp, heat and test completed cable splice.

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1. Strip back about 25mm of the black insulation from the submersible drop cable and strip back 10mm of insulation off of each conductor. Strip back about 80mm of the blue insulation off the motor cable and strip 10mm of insulation off the conductor. Slide large heat shrink on to cable. Crimp one end of crimp connector to each conductor. Slide small heatshrink on to each conductor. Crimp connector to matching conductor of other cable.

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2. Heat with heat gun starting from one end of heatshrink. All of the heat shrinks normally shrink at the same time. Key the about 50mm of the outer black and blue insulator with the sand paper from the kit. This process takes the shine off the rubber and allows the sealing tapes and heatshrink to bond. Do not key the rubber along the length of  cables. 

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3. Wrap the sticky red flat putty around each end of the cable ends. Squeeze putty to fill the gaps.

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4. Wrap the black sealing tape around the joint from one end to the other. Squeeze gently to fill all the gaps. Slide the large heatshrink over the wrapped joint. Ensure the keyed area extends beyond the heatshrink each end. If not slide the heatshrink back and extend the keyed area.

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5. Hold the cable vertical and heat the heatshrink from the center upwards to the top, then invert it and heat the heatshrink to the top again. This process will expel the air bubbles and extrude a some of the resin beyond the end. Allow to cool straight if possible.

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6. Test the completed cable splice joint with a multi-meter or appliance tester. The earth pin should have a low resistance to the body of the pump ensuring the earth connections are correct. The other conductors should have a high resistance to earth. The resistance between the conductors will show the resistance of the motor windings.

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Lorentz submersible pump cable splice connections.
FREE ADVICE CALL:  1300 727 042
Email: 
info@waterborepump.com.au
If you purchase the pump and cable from Water Bore Pump Warehouse we can supply it spliced and tested ready for installation.

The use of the wrong cable may damage your pump drive motor and void the warranty.
Electrical connections should be made by a suitably qualified person.
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We Sell Australia Wide
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Contact us:
1300 727 042
​0414 711 131
info@waterborepump.com.au
PO Box 309 Belair
SA 5052
contact us
photo of Grant Phillips
Water Bore Pump Warehouse
info@waterborepump.com.au
Adelaide , South Australia , 5000 Australia
1300 727 042
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