COPPER URD 15kV

Copper URD (Underground Residential Distribution) 15kV Cables are engineered for high-reliability primary power distribution in underground systems. Designed for direct burial or installation in conduit, these cables feature a high-purity copper conductor and advanced TR-XLPE (Tree-Retardant Cross-Linked Polyethylene) insulation to resist premature failure from water treeing. This collection includes various configurations, typically utilizing a concentric neutral design that ensures a safe return path and superior mechanical protection in harsh subterranean environments.

Need a quote?  Call us at: 833-268-8644 or email: sales@wireamerica.com

 

Filters

0 Products

FIlters

COPPER URD 15kV MEDIUM VOLTAGE CABLE

Copper URD (Underground Residential Distribution) 15kV cable is a high-performance primary distribution conductor specifically designed for direct burial in underground utility systems. Engineered to transport medium-voltage power from substations to residential and commercial pad-mounted transformers, this cable utilizes high-conductivity annealed copper conductors. Its multi-layer construction includes a semi-conducting conductor shield, high-dielectric Tree-Retardant Cross-Linked Polyethylene (TR-XLPE) or EPR insulation, and a semi-conducting insulation shield. The cable is surrounded by a concentric neutral comprised of solid bare copper wires, providing a reliable return path and safety ground, all encased in a moisture-proof, sunlight-resistant Linear Low-Density Polyethylene (LLDPE) jacket.

Installation Note: Copper URD cable is significantly heavier than aluminum, requiring calibrated tension-monitoring equipment during long underground pulls to prevent over-stressing the conductor. Per NEC and NESC standards, the cable must be buried at a minimum depth of 24 inches for direct burial applications. Ensure the concentric neutral wires are gathered and properly grounded at every transformer or termination point using approved high-voltage connectors. It is strongly recommended to use a 3-4 inch sand bedding to protect the TR-XLPE insulation from sharp rocks and debris during backfilling.

Key Features
  • 15kV Utility-Grade Rating: Designed for standard primary distribution voltages, ensuring reliable power delivery across municipal and residential grids.
  • Annealed Copper Conductor: Offers superior conductivity and smaller cable diameters compared to aluminum, allowing for easier installation in tight spaces or smaller trenches.
  • Advanced TR-XLPE Insulation: Features Tree-Retardant XLPE technology that inhibits the formation of "water trees," significantly extending the cable's lifespan in wet subterranean environments.
  • Full or One-Third Concentric Neutral: Wrapped with solid bare copper wires to meet specific grounding and neutral-return requirements as dictated by system design.
  • Triple-Extruded Shielding: The conductor shield, insulation, and insulation shield are extruded simultaneously to maintain a contaminate-free, high-integrity electrical bond.
  • Subterranean Durability: The LLDPE outer jacket provides exceptional resistance to abrasion, soil chemicals, and the mechanical pressures of direct burial.
  • Industry Compliance: Manufactured to meet or exceed ICEA S-94-649, AEIC CS8, and the performance standards of the National Electrical Safety Code (NESC).
Common Applications
  • Residential Underground Distribution: The premium choice for providing primary 15kV power to modern housing developments and subdivisions.
  • Commercial Primary Feeders: Routing high-voltage power to shopping centers, office parks, and multi-family residential complexes.
  • Municipal Grid Undergrounding: Used by local utilities to transition from aging overhead lines to a more storm-resilient underground infrastructure.
  • Institutional Primary Loops: Ideal for hospital campuses, universities, and government facilities requiring high-reliability buried power lines.
  • Solar and Wind Collection: Serving as the primary medium-voltage connection between renewable energy collection points and the utility grid.
  • Industrial Park Power: Providing the main high-voltage feed to manufacturing centers and industrial warehouses.
  • Substation Exit Circuits: Used for the initial underground run of primary circuits as they exit a distribution substation.

Resources & Guides

Concentric Neutral in Power Cables | Safety & Function Guide
February 24, 2026
Read More