Underground conduit installation guide

Depths to the top of conduit to final grade shall be a minimum thirty (30) inches. In the event proper depth of conduit cannot be achieved, or where foreign objects threaten to interfere with the installation of conduit, a Concrete Protective Cover of the conduit may be used. Written approval is required for the use of Concrete Protective Cover Underground Residential Conduit Installation Requirements Page 1 of 13 March 2022 Introduction The Customer has the option of installing the underground residential conduit for the service cable in new single-phase, residential, underground electrical services. This is document is a guide to the installation requirements. UNDERGROUND INSTALLATION DETAILS CONDUIT STUB-UP CONDUIT DUCT BANK NOTES (CONCRETE REINFORCED DUCT BANK): 1. CONCRETE DUCT BANK SHALL BE PLACED ON 50mm MUDMAT AND POLYETHYLENE SHEET LINER ON TOP OF MUDMAT. 2. PROVIDE CONCRETE WITH MINIMUM COMPRESSIVE STRENGTH OF 16MPa AT SEVEN DAYS AND 25MPa AT 28 DAYS. SILICA FUME SHALL BE USED AS AN ADMIXTURE. 3. When pulling cable in conduit install a pull cord with the cable so additional cable can be installed later if needed. When adding cable, add to occupied conduits with available space before using an empty conduit. Conduit Size Service to any outdoor location where the conduit passes underground, requires a minimum of 1 ¼" conduit. • Conduit installation should not start until the staking has been approved by the Tampa Electric service main line inspector. 2. Conduit should be buried at a minimum of 36 inches per specs. 1-43 & 1-44 • Trench should remain open until the Tampa Electric service area main line inspector approves the installation for proper depth and location. than a 2-inch diameter, use a miter box or saw guide to ensure a square cut. Deburr the end using a knife or file. BENDING INSTALLATION GUIDELINES FOR RIGID CONDUIT 56400 Mound Road - Shelby Twp., MI 48316 T 1.800.232.5690 - F 586.781.0888 royalbuildingproducts.com conduit installation. These inspections are aimed at resolving problems prior to the installation of the cable. These inspections will be conducted within the same time frame as those for secondary furnish the required conduit system. Underground express feeders will typically require two 6-inch schedule 40 PVC conduits per circuit. These Conduit must be placed in trench and stubbed at nearest power pole and house (within 6 inches) There cannot be any hard corners (sweeping corners required) If you have any additional questions please call our office at 541-833-0545 or email us at. service@lanefi.com and we will gladly assist you. UNDERGROUND INSTALLATIONS FIRST IN THE FIELD Work Practice for Underground Installations Introduction This guide has been written with the assumption that the conduit bank will be exposed to considerable vehicular traffic during its lifetime. Many of the techniques and precautions discussed have been done so with this in mind. Required depth of conduit from final grade to top of conduit/conduit bank: • 30" for secondary, minimum • 36" for primary, minimum • 48" maximum 10. Backfill evenly around duct with clean dry earth and mechanically tamp in 12" lifts. 11. Lengths of secondary duct banks shall be minimized to limit pulling distances and electrical losses. Cut Your Ingress or Egress Holes. Cut your egress and ingress holes from the starting point (for example, your electrical panel) to the end of your ru