2023-193 - Laserfiche WebLink

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Provide a factory lubricated low friction, coilable, high-density conduit constructed over high-density polyethylene (HDPE). Provide outer duct conduit with a smooth outer wall, and inner wall, and ensure the conduit is capable of being coiled on reels and continuous lengths, transported, stored outdoors and subsequently uncoiled for installation without affecting its properties or performance. Include multi -duct conduit organizers at all points where the multi -duct conduit enters and exits into a junction, pull box, splice vault, or similar structure. Provide conduit spacers that are appropriately sized relative to the ducts. 7.4.3 HDPE Innerduct Provide a factory lubricated, industry sized 1.5" or 2" inside diameter as listed in the plans, low friction, coilable, conduit constructed of virgin HDPE innerduct. Said innerduct shall conform to ASTM D — 2239 and meet the following minimum requirements: Smooth wall SDR — 11, nominal outer diameter of 1.592 inches, minimum inner diameter 1.360 inches and a minimum wall thickness of 0.106 inches. Provide conduit with a smooth outer wall and ridged inner wall and ensure the conduit is capable of being coiled on reels in continuous lengths, transported, stored outdoors subsequently uncoiled for installation without affecting its properties or performance. Innerduct shall be furnished in the following factory extruded colors: orange, white, black and yellow as specified. Red shall be reserved for electric. Provide mechanical duct plugs that provide a watertight barrier when installed in an unused conduit or outer duct conduit. Provide duct plugs sized in accordance with the conduit furnished. Provide duct plugs that are removable. All conduit shall come with factory installed duct plugs to keep out dust, dirt, and water. Provide mechanical sealing devices that provide a watertight barrier between the conduit and communications cable. Provide mechanical sealing devices sized in accordance with conduit furnished and with appropriately sized holes for the communications cable. Provide mechanical sealing devices that are removable. 7.4.4 Secondary Underground Conduit Furnish and install HDPE or PVC conduit sized per plans for additional pipe in common trench. Install the proper size and quantity of conduits to be used in accordance with the minimum conduit size and quantity requirements of the NEC and as approved by the Owner. 7.4.5 Above Ground Conduit Furnish and install conduit for above ground use (a riser assembly on a utility service pole for the purpose of bringing power from above ground to underground conduit/duct, or bridge mounted or other above ground structure) consisting of galvanized rigid steel (GRS), aluminum, or Schedule 80 PVC conduit in accordance with ASTM D 1785, as approved by the Owner. Furnish and install Schedule 80 PVC conduit, aluminum or Rigid Metal Conduit (RMC) for bridge crossings, attached to the bridge structures, under the parapet, wherever feasible and applicable. All rigid steel conduit material utilized shall be compliant with UL -6, ANSI C-80.1 and to Article 346 of the NEC. All aluminum conduits shall be aluminum 6063 aluminum alloy, T — 1 Temper, ANCI C80.5, and NEC 250.118 (2). All required connectors, adapters, fittings, conduit straps or "U" guard clamps and incidentals required and necessary for the above ground installations shall be galvanized and provided to construct a complete conduit/duct system. No reducing couplings or reduction in the inside diameter of conduit shall be permitted. No intermediate metallic conduit (IMC) or thin — wall type electrical conduit shall be permitted for outdoor use. Furnish and install galvanized metal conduit grounding bushing, or aluminum metal conduit grounding bushing on the terminating ends of all GRS/aluminum conduit runs. The bushings shall have an insert made of plastic and or other suitable material to protect 25