![]() If you find flexibility important - for instance, if you live in a cold climate where temperatures can makes cable difficult to work with - choose a product with finer stranding. You can buy size 10 pump cable with as few as 19 strands from some manufacturers, and as many as 49 strands from others. The finer the stranding, the more flexible the cable. “Stranding” describes the individual copper strands that make up the conductors that, in turn, make up the pump cable. Submersible pump cable can be used between the wellhead and the control panel or disconnect, so long as it is run in conduit. Installers can often bury it in the ground, although some local codes require underground high-voltage wiring, even UF, to run in conduit. ![]() UF, on the other hand, is used between the wellhead and the pump control panel or disconnect. It is designed to safely carry electrical loads inside water wells so long as it is sized properly. Submersible pump cable runs between the wellhead and the pump in submersible applications, and is approved by UL (formerly Underwriters Laboratories) for underwater duty. There are two classifications of insulated multi-conductor cable used in submersible pump applications: submersible pump cable and underground feed cable, commonly known as UF. This article helps pump installers decide which type and size of pump cable to use. ![]() The code contains general requirements regarding the type of cable to use when installing pumps, but it gives the installer some latitude as to the specific type of cable. Guidelines for electrical installations are contained in the National Electrical Code (NEC). ![]()
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