350-350-350-4/0 Slippery Rock Quadruplex Aluminum Conductor Underground Direct Burial 600V URD

Allowable Ampacity for 350-350-350-4/0 Slippery Rock Quadruplex Aluminum Conductor 600V URD direct burial: 385 Amps

Allowable Ampacity for 350-350-350-4/0 Slippery Rock Quadruplex Aluminum Conductor 600V URD in duct: 305 Amps

Applications:

The 350-350-350-4/0 Slippery Rock Quadruplex Aluminum URD Cable is designed for secondary power distribution in underground electrical systems. It is 600V-rated and suitable for direct burial or installation in ducts. With high-strength aluminum conductors and XLPE insulation, this cable is moisture-resistant, heat-resistant, and durable for outdoor use.

With a maximum operating temperature of 90°C, it performs reliably in both wet and dry environments. Its pre-pulled duct design allows for easier installation in utility and commercial power distribution systems.

Also Known As:

350-350-350-4/0 slippery aluminum urd cable, 350-350-350-4/0 slippery urd direct burial cable, 350-350-350-4/0 slippery quadruplex cable, 350-350-350-4/0 slippery quadruplex wire, 350-350-350-4/0 slippery four conductor wire, 350-350-350-4/0 slippery four conductor cable, 350-350-350-4/0 slippery direct burial electrical cable, 350-350-350-4/0 slippery direct burial power cable, 350-350-350-4/0 slippery aluminum direct burial cable.

Specific Use Cases of 350-350-350-4/0 URD

This cable is used for medium-load secondary distribution, delivering 350 MCM conductors for commercial, utility, and infrastructure needs.

• It powers service meters from pad-mounted transformers in urban and suburban grids.
• It supplies underground power to office complexes, shopping centers, and medical facilities.
• It provides electricity to residential subdivisions and low-rise apartment buildings.
• It is used in underground vaults and power distribution panels for municipal and industrial systems.
• It connects small solar farms and wind turbine installations to the grid.
• It supports construction sites and municipal emergency backup systems.

Standards:

• ASTM B-230 

• ASTM B-231 

• ASTM B-609 

• ASTM B-901 

• ICEA S-105-692 

• Federal Specification J-C – 30B 

• USE-2
  
  

• RUS ACCEPTED

Construction

Conductors:

Aluminum conductor used for this cable is either a concentric strand or compressed 1350-H19 series aluminum conductor. The conductors are cabled together, with surface printing for identification. The neutral conductor has a yellow stripe. 

Insulation:

Versatile insulation system made of cross linked black polyethylene material helps to secure the cable conductors. This insulation is water tight, repulsive to corrosive substances, resistant to oil, heat and flame. Cross linking a polyethylene helps to achieve an excellent strength that makes the material suitable for covering this cable used in harsh conditions like direct burial installation.

Specifications:

• Size AWG: 350

• Stranding: 37

• Insulation Thickness (mils): 95

• Neutral Size AWG: 4/0

• Single Phase Conductor Inches: 0.831

• O.D. Inches: 1.945

• Weight lbs./1000ft: 1544 lbs

• Ampacity: Direct burial: 385 Amps

• Ampacity: In duct: 305 Amps