Quadruplex URD Cable (Underground Residential Distribution Cable) is a type of power cable designed for residential underground power distribution systems. It typically consists of four conductors: three insulated phase conductors and one bare neutral conductor. These cables are used for distributing electricity to residential homes and buildings in underground systems, providing a reliable and safe way to deliver electrical power. It helps to reduce the magnitude of current in transformers so that it can be used in residential households. It has up to four conductors with three being the phase conductors and the extra one being the neutral conductor. The conductors are printed on the surface while the neutral wire has a yellow strip for identification purposes. Conductors are cabled together in a rope lay manner or parallel to each other depending on your specifications.
Quadruplex URD Cable Features:
• It has sequential footage markings• Heat and moisture resistant
• Approved for use by international standards
• Temperatures of 90°C
• Moisture and chemical resistant
Quadruplex URD Cable Specifications:
| DWC Part # | Phase Conductor AWG | Phase Conductor # of Strands | Phase Conductor Insulation Thickness (in) | Neutral AWG | Neutral # of Strands | Neutral Insulation Thickness (in) | Diameter Single Phase Conductor (in) | Diameter Complete Cable (in) | Weight (lbs / 1000ft) | Allowable Ampacities Direct Burial (amps) | Allowable Ampacities In Duct (amps) |
| Tulsa | 4 | 7 | 0.06 | 4 | 7 | 0.06 | 0.345 | 0.831 | 259 | 119 | 85 |
| Dyke | 2 | 7 | 0.06 | 4 | 7 | 0.06 | 0.345 | 0.974 | 348 | 153 | 115 |
| Wittenberg | 2 | 7 | 0.06 | 2 | 7 | 0.06 | 0.403 | 0.974 | 378 | 153 | 115 |
| Notre Dame | 1/0 | 19 | 0.08 | 2 | 7 | 0.06 | 0.403 | 1.238 | 544 | 198 | 150 |
| Purdue | 1/0 | 19 | 0.08 | 1/0 | 19 | 0.08 | 0.512 | 1.238 | 600 | 198 | 150 |
| Syracuse | 2/0 | 19 | 0.08 | 1 | 19 | 0.08 | 0.473 | 1.341 | 660 | 225 | 170 |
| Davidson | 3/0 | 19 | 0.08 | 3/0 | 19 | 0.08 | 0.603 | 1.452 | 871 | 250 | 195 |
| Wake Forest | 4/0 | 19 | 0.08 | 2/0 | 19 | 0.08 | 0.555 | 1.586 | 981 | 290 | 225 |
| Earlham | 4/0 | 19 | 0.08 | 4/0 | 19 | 0.08 | 0.658 | 1.586 | 1063 | 290 | 225 |
| Rust | 250 | 37 | 0.095 | 3/0 | 19 | 0.08 | 0.76 | 1.76 | 1187 | 325 | 250 |
| Slippery Rock | 350 | 37 | 0.095 | 4/0 | 19 | 0.08 | 0.658 | 2.008 | 1540 | 385 | 305 |
| Wofford | 500 | 37 | 0.095 | 350 | 37 | 0.095 | 0.831 | 2.184 | 2183 | 465 | 370 |
