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5.7 Submersible Pump Cable and Splice
Selection of cable Use only an approved
type of submersible well pump cable, the
same type that is used for conventional AC
pumps. It is available from your pump
supplier or installer, or a local water well
supply distributor. You need 4-conductor
cable. It is often called “3-wire-with-ground”
because it has 3 power wires plus a ground
wire. To determine the minimum required wire
size, refer to the Systems Sizing Table.
Submersible Splice A splice kit includes
crimp connectors to join the copper wires,
adhesive heat-shrink tubing, and instructions.
If the drop cable is too large to fit in the crimp
connector, cut off some of the wire strands.
Use a crimping tool, and observe that the
wires are held very securely.
motor leader
cable
wires spliced with adhesive
heat-shrink tubing
drop cable
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