Shorter installation times and lower total costs make RED-E-DUCT the right choice for large-scale government and municipal projects. All RED-E-DUCT products are rated for HS20 and HL93 loading. Rapid installation and immediate backfill make RED-E-DUCT ideal for projects where restoring traffic access is imperative. RED-E-DUCT’s extreme strength and performance allows for much shallower bury depths when compared with cast-in-place, resulting in lower costs and fast rate of construction. The bending capacity of concrete-encased underground electrical duct banks has been the subject of considerable investigation using the load-structure method however, the role of high-density. Immediate backfill means faster access to above ground work to keep projects moving forward. RED-E-DUCT shines in congested areas where schedule savings can yield big results on a project. RED-E-DUCT’s low thermal resistivity adds peace of mind by reducing the risk of premature cable failure due to inadequate backfills, poor installation practices and high thermal temperatures. 5.2 If the interval between concrete pours for a continuous duct bank is expected to be more than 4 hours apart, industry standard construction joints shall be. We see in Article 250.50 the mandate that all electrodes listed in the code (steel. This includes the steel rebar in the concrete foundations. generally Schedule 40 unless otherwise specified. The National Electrical Code (NEC) requires that all normally non-current-carrying metallic objects in a given structure be bonded together to form a single common system that is at the same potential. Complete below grade work faster with RED-E-DUCT. 5.1 Typically all primary and secondary distribution duct banks shall be unreinforced concrete encased using Type EB conduit. Ground electrode conductors not encased in conduit shall be a minimum size of No. Standard precast duct bank sections and stub-ups reduce labor requirements, improve safety and provide maximum construction flexibility. See Paragraph 701.0 for ground electrode conductor size. Rapid installation and backfill permits above ground work to start earlier. ![]() ![]() Low thermal resistivity concrete ensures duct banks in high heat applications can be trusted to perform. Whether building a new facility or replacing existing infrastructure, RED-E-DUCT’s immediate backfill capability means work completes faster and site congestion is reduced. Some ideal applications of RED-E-DUCT precast electrical duct banks include: It actually makes us look good, that the contractor can only find one thing we've "overdesigned" and it doesn't amount to anything.Engineered for efficiency, RED-E-DUCT is the solution to the complex underground duct banks demanded by oil, gas and chemical facilities, power generation, industrial facilities, airports, data centers, and road/highway projects. So we laugh, and say put it in per design. So we have them quantify the amount the owner will save, and it invariably comes out to $5000 or $10,000. Designed for performance RED-E-DUCT STANDARD SECTIONS Standard sections may be set side by side, or stacked to accommodate most duct bank requirements. Side note: Whenever we have a VE (Value Engineering) phase on a project, the first thing the contractor wants to eliminate is duct bank reinforcing. Underground Ducts for Electrical Cables Higher than 600V: Type EPC-40-PVC, concrete-encased duct bank. Provide red dye added to concrete during batching. There's no real design, but I have used the reinforcing to span the duct bank over a temporary trench. Concrete: Use 3000-psi- minimum, 28-day compressive strength and 1-inch maximum aggregate size. They're reinforced with #4's around the perimeter at 12 inch spacing and #4 ties at 24 inch centers. ![]() There's a lot of casual concrete (waste concrete, thrust blocks, foundation extensions, etc.), but if the backhoe operator sees red, he's been warned. There's a lot of reasons that don't hold up to close examination, but bottom line is, that if you're in a water or wastewater treatment facility, you're likely to be digging a trench through it or a hole into it. We reinforce electrical duct banks and require them to be red.
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