High Quality Flexible PVC Insulated Copper Wire for Underground Electrical Wiring Applications

We’ve been running these through underground conduits on a residential job, and the oxygen-free copper core—99.9% pure—handled the load fine even when we had to tie a few tight knots to get around a corner. It basically keeps conducting without a hiccup, which you don’t always get with cheaper wire.

The PVC insulation is thick enough that we didn’t worry about nicks form pulling it through rough PVC pipes, but it’s not so stiff that you fight it every bend. Temperature range is 0-50°C, so it’s not for hot environments like near a furnace, but for standard underground or house wiring it’s fine. Also, low eccentricity design means the insulation thickness stays uniform—pretty much prevents breakdown at higher voltages, like the 750V rating.

Cross-sections go from 0.75mm² up to 25mm², and most buyers go with the 2.5mm² or 4mm² for typical branch circuits. The multi-core version is a bit more flexible than solid core, though solid is better for straight runs in conduit. We usually have stock on 1.5mm², 2.5mm², and 4mm², but lead time for larger sizes like 16mm² or 25mm² is about 20 days or so—check before ordering if you’re in a hurry.

Color options are customizable, which is handy if you’re color-coding phases or neutrals—just note the MOQ is higher for custom colors, usually around 500 meters per color. The CE and CCC certifications are on the COA we ship with each batch, and we’ve got ISO9001 for the factory as well. And one thing you might not think to ask: the wire has a mild plastic smell fresh out of the spool, but it fades after a day or two in open air.

It’s not suited for direct burial in wet soil without addtional conduit—teh PVC sheath is scratch-resistant but not waterpoof long-term. For that, you’d need a different grade. We include the SDS with each order (usually 2-4 weeks for internatioanl), and the 0.75mm² size is a pain to strip by hand, so use a proper wire stripper.