Multicore Hydrological Cable

Most monitoring installations share the same pain point: cable that works fine on the bench but starts cracking or wicking moisture six months into the job. The jacket compound and the way the inner pairs are twisted matter more than most spec sheets admit. Kingmach’s multicore hydrological cables use a polyurethane or polyethylene outer jacket—choice depends on your chemical and UV exposure—and each twisted pair is shielded with aluminum-backed tape plus a drain wire. That keeps crosstalk low and blocks electrical noise from nearby pumps or power lines, which is one of the most common reasons for bad readings in liquid-level sensors. The core count typically ranges from 2 to 12 pairs, so you can feed several piezometers, a rain gauge, and a temperature string through one cable. We pot the ends in a tough polyurethane resin if customer requests; this stops condensation from creeping up the conductor strands, something we’ve seen destroy connectors in high-humidity boreholes. Spool lengths are available from 100 meters up to 500 meters as standard, with longer reels possible on demand. The cable is marked every meter so field crews don’t have to guess how much is left in the ditch. You don’t need to baby it during installation—the jacket resists abrasion against rock edges, and the overall diameter stays manageable enough to fit into narrow standpipes. Clients often ask us to include a steel strength member or a Kevlar strain-relief layer when the cable has to hang freely down a deep well; we can layer those in without changing the outside dimension much. That keeps things simple when you’re ordering: one cable, one set of connectors, one less thing to troubleshoot on a rainy day.