- 197 - SECTION 404 -- AERIAL CABLE
404.01 Description
1.The Contractor shall furnish and install aerial cable of the size and type shown in the contract. This work includes the cabl e, mounting devices, splices, connections, terminations, and all labor, equipment, tools, materials, and incidentals required to complete the work.
404.02 Material Requirements
1.Traffic signal and roadway lighting aerial cable and conductors shall conform to the requirements of Section 1073.
404.03 Construction Methods
1.The Contractor shall install the aerial cable in strict compliance with the latest industry standards, practices, and procedures.
404.04 Method of Measurement
1.Aerial cable shall be measured in linear feet (meter) horizontally from center to center of the poles for each type and size of cable shown in the contract and shall not include allowa nces for vertical rises, drip loops, sags, or splices.
404.05 Basis of Payment
1.Pay Item Pay Unit 2/C _____ Detector Lead-in Cable, Aerial Linear Foot (LF) [Meter (m)] ___/C ____ Traffic Signal Cable, Aerial Linear Foot (LF) [Meter (m)] Service Cable, _____ Aerial Linear Foot (LF) [Meter (m)] Street Lighting Cable, _____ Ae rial Linear Foot (LF) [Meter (m)] Coaxial Cable, Aerial Linear Foot (LF) [Meter (m)] Optical Detector Cable, Aerial Linear Foot (LF) [Meter (m)] Video Camera Cable, Aerial Linear Foot (LF) [Meter (m)] Traffic Signal Interconnect Cable, Linear Foot (LF) Type ____ Aerial [Meter (m)] ____ Communication Cable, Aerial Linear Foot (LF) [Meter (m)]
2.Payment is full compensation for all work described in this Section. - 198 - SECTION 405 -- CONDUIT
405.01 Description
1.The Contractor shall furnish and install the size and type of conduit shown in the contract. This applies to underground conduit and conduit in or on bridges, median barriers, retaining walls, tunnels, and similar structures. This includes the conduit, fittings, excavating, backfilling, compacting, and all labor, equipment, tools, materials, a nd incidentals required to complete the work.
2.Special devices or fittings such as hangers, expansion fittings, deflection fittings, junction boxes, drai ns, grounding devices, and all other fittings required for a complete conduit system installation shall be considered subsidiary to the conduit pay item.
405.02 Material Requirements
2.The Contractor may substitute a larger size conduit than specified at no additional cost to the Depar tment if approved by the Engineer.
3.Fittings must be standard conduit fittings and designed for the specific type of conduit used. Galvanized malleable iron or steel fittings shall be used with galvanized rigid steel, intermediate metallic, or electrical metallic tubing conduit. Aluminum or zinc alloy fittings will not be allowed.
405.03 Construction Methods
1.The Contractor shall assemble and install conduit systems in accordance with the NEC , except that in those instances where the Standard Specifications are more stringent than the minimum requirements of the NEC , the Standard Specifications shall prevail.
2.Conduits: a. Field bends must be properly formed with appropriate tools and shall not reduce the conduit cross section area.
b.Exposed field cut threads on metallic conduit and any area where galvanizing has been removed shall be painted with 1 coat of an approved zinc rich paint.
c.All conduit terminations shall have bells or bushings. A standard premolded PVC conduit elbow with integral belled end shall be attached to HDPE conduit to meet this requirement.
d.Spare conduits shall be capped or plugged with standard fittings.
e.Unless otherwise provided or directed by the Engineer, underground conduit shall be placed 30 inches (750 mm) below finished grade.
3.Trenching:
a.The locations of conduit runs indicated in the contract may be altered at the direction of the Engineer to accommodate field conditions. Conduit shall be routed to minimize damage to existing trees and shrubs.
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Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 231–231 of 1,048. View official source ↗