For example, RED-E-DUCT greatly reduces the risk of weather-related delays and eliminates the time-consuming requirement of on-site concrete testing. Critical locations can be trenched, installed, and backfilled in as little as eight hours, allowing site access to be restored quickly, and reducing the time of worker exposure to open trench areas.įewer weather delays and no time lost to concrete testingĪlong with revolutionizing the economics of underground duct bank installation, RED-E-DUCT offers several performance advantages over traditional duct bank construction. Trench excavation and setting of duct bank sections can happen concurrently, and trenches can be backfilled immediately after RED-E-DUCT sections are installed. The savings in time, labor, and time-to-completion are dramatic – allowing construction teams to complete underground infrastructure in record time. With RED-E-DUCT and appropriate construction planning, up to 14,000 conduit feet can be installed per shift and trenches can be backfilled as soon as the RED-E-DUCT sections are installed. Lay rates up to 14,000 conduit-feet per shift (8-hour workday) The need for concrete testing is eliminated at the job site, since quality tests are performed and recorded at Forterra’s certified precast facility. Solvent cements are not required to join the sections, and no formwork, steel reinforcement, or concrete work is required on straight duct bank runs. Added together, the traditional process is slow, labor-intensive, and subject to weather delays.īy contrast, the RED-E-DUCT Precast Electrical Duct Bank System consists of electrical conduits encased in engineered, prefabricated concrete sections, arriving at the job site ready to install. Finally, concrete must be poured and sufficiently cured before work in the area may resume. Dependent upon design requirements, reinforcing steel may be required to be placed around the PVC conduits. Concrete formwork must be erected around the installed conduits. In traditional underground duct bank installation, multiple PVC conduit runs are “stick-built” with individual sections of PVC conduit connected in sequence using PVC solvent cement. With significant time, cost, and labor savings, construction teams can complete underground installations faster, restoring site access more quickly while enhancing worker safety. Irving, TX, June 2020 – With the rollout of its RED-E-DUCT™ Precast Electrical Duct Bank System, Forterra is changing the way underground electrical duct bank systems are installed. 1).Parul Dubey on Jin News, Products, Technology Editorial correction filed 11-2-83 (Register 83, No. Reference: Section 142.3, Labor Code and Section 18943(c), Health and Safety Code.ġ. NOTE: Authority cited: Section 142.3, Labor Code. Metallic underground ducts shall be suitably protected from corrosion. 2: Where it is impractical to obtain the depth of cover specified, the depth shall be permitted to be reduced, provided that the duct has sufficient strength itself or adequate protection is installed above the duct to prevent damage to the duct system by any surface traffic. 1: Direct buried conduits to contain cables for series street lighting circuits operating at less than 7,500 volts shall be installed at a depth of at least 24 inches below the surface under which they are located.ĮXCEPTION: No. A lesser depth is permitted for ducts containing cables operating at 35,000 volts or less, if the duct is rigid metallic conduit, Schedule 80 PVC conduit, or equivalent, or if the duct has a layer of concrete at least 3 inches thick above the duct.ĮXCEPTION: No. Underground ducts of rigid metallic steel conduit, Schedule 80 PVC conduit, or equivalent, containing cables operating at a potential above 35,000 volts, shall be installed at a depth of at least 36 inches. High-Voltage Electrical Safety OrdersĪrticle 19.
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