Medium voltage cables are rated between 2000V (2kV) and 35,000V (35kV). Typically used in industrial and mining environments to supply power to heavy machinery, as well as in power generation, and in mobile substations to conduct maintenance and repairs.
A number of design considerations help ensure medium-voltage cables avoid charge build-up and unintended discharge. Surrounding an aluminum or copper conductor is a conductor shield, usually a semi-conducting material. The conductor and shield are insulated with a material such as cross-linked polyethylene (XLPE) for chemical, oil and water resistance, as well as superior mechanical strength to protect the conductor in challenging environments.
The insulation is further shielded, often with a metallic tape or braid as an additional safeguard in the event of a fault. And finally, the cable is jacketed using XLPE, neoprene, propylene rubber (EPR), or chlorinated polyethylene (CPE), which are each suited for an array of environmental challenges, usage considerations and price points.
With the advancement of insulation and jacket materials technology, some cable designs forego the insulation shield and are considered non-shielded, although a conductor shield remains.
Most of the medium-voltage power cables we carry are manufactured by Prysmian or their subsidiary, General Cable. Use the filters on the left side of the page to search for the construction that best suits your needs. If you can't find a specific cable you're looking for, or would like to discuss bulk discounts, email us through the contact form, chat or call 312-373-0373.