Cable developer Nexans says its latest product, ENERGEX EXTRA, is possible by adapting its medium voltage production to use DOW ENDURANCE HFDC-4202 tree-retardant cross-linked polyethylene (TR-XLPE) insulation.
Laboratory and pilot plant testing by Dow and qualification tests by the Insulated Cable Engineers Association (ICEA), verify the HFDC-4202 insulation provides superior performance compared to previously available insulation systems.
The advantages of ENERGEX EXTRA using HFDC-4202 include improved resistance to water tree growth; higher retained dielectric strength after ICEA 360-day Accelerated Water Treeing Test, and reduced cost of ownership through longer cable life.
“Nexans use to HFDC-4202 will further improve the performance of our medium voltage cables and exceed industry standards for long service life and reliability,” says Rick Vascotto, VP Sales and Marketing, North America Energy Infrastructures.
Nexans has received certification to Canadian Standards Association Standard C68.5 (primary shielded and concentric neutral cable for distribution utilities), and is eligible to apply the CSA mark on products manufactured with the new insulation.
“Utilities, manufacturers, and material providers must collaborate to deliver power cables that ensure reliability and maximum service life,” said Fred Dennert, Division Manager of Distribution Standards at BC Hydro, the largest electric utility in British Columbia currently receiving the new insulated cables from Nexans.
In addition to delivering improved electrical performance, the new insulation has superb extrusion processing characteristics and enhanced strippability for ease of field accessory installation.