- 211 - SECTION 411 -- TRAFFIC SIGNAL CONTROLLER
411.01 Description
1.The Contractor shall furnish and in stall traffic signal controllers of the type and at the locations shown in the contract.
2.All equipment required to be installed for the power service, including but not limited to, meter sockets and breaker boxes is considered subsidiary to the traffic signal controller installation.
411.02 Material Requirements
1.Traffic signal controllers s hall meet the requirements in Section 1073.
2.Concrete shall meet the requirements in Section 1002.
411.03 Construction Methods
1.The controller shall be placed on a concrete pad as shown in the contract. The controller shall not be pl aced in a ditch or depression that is subject to water ponding or flooding. Pole mounted controllers shall have a pad constructed below the controller as shown in the contract.
2.All conduits within the cabinet shall be clear of any braces or equipment which would interfere with cable runs. One spare 2 inch (50 mm) conduit bend shall be installed in each pad mounted controller foundation. The ends of the bend shall be capped. This work shall include furnishing and installing the controller, concrete, s pare bend, and all excavation, backfilling, labor, equipment, tools, and incidentals required to complete the work.
411.04 Method of Measurement
1.Traffic signal controllers shall be measured by the each.
411.05 Basis of Payment
1.Pay Item Pay Unit Traffic Signal Controller, Each (ea) Type TC _____ Install Traffic Signal Controller, Each (ea) Type TC _____
2.Concrete Pad is subsidiary to controller. 3. Payment is full compensation for all work described in this Section. - 212 - SECTION 412 -- LUMINAIRES
412.01 Description
1.The Contractor shall furnish and install luminaires of the size and type indicated in the contract.
412.02 Material Requirements
1.Luminaires shall conform to the requirements in Section 1073.
412.03 Construction Methods
1.The Contractor shall install lu minaires in conformance with the manufacturer's recommendations.
2.Conventional Luminaires: a. Unless indicated otherwise, luminaires shall be installed perpendicular to the centerline of the roadway being lighted.
b.The position of the lamp socket in each luminaire must be adjusted in accordance with the manufa cturer's specifications to meet the photometric requirements shown in the contract.
c.Unless otherwise indicated in the contract or directed by the Engineer, luminaires will be installed level in both horizontal axes.
d.Each luminaire shall be fused. Fuses shall be installed in each hot leg using approved disconnect type in-line fuseholders. Fuseholders shall be located in the transformer base or the base of the pole.
e.The month and year of installation shall be permanently indicated on the base of each lamp at the location provided by the manufacturer.
3.High Mast Luminaires: a. Luminaires shall be adjusted to proper alignment and orientation with respect to the r oadway as shown in the contract.
b.All connections from the portable cable to the individual ballasts shall be made in the junction box located on the luminaire support assembly. When an electrical cable passes through any metal or pulley, a bushing shall be provided.
c.Each luminaire shall be fused by installing an in-line fuseholder in each hot leg. Fuseholders shall be located inside the luminaire.
d.Night inspection by the Engineer will determine the need for adjustments to the luminaires.
e.When shielding is required, shielding methods proposed must be approved by the Engineer before any materials are installed. Unless indicated otherwise, external shields will not be allowed.
4.Wall Mounted/Underdeck/Overhead Luminaires:
a.Wall mounted/underdeck/overhead luminaires shall be installed as shown in the contract. Each luminaire shall be grounded.
b.Fuses shall be installed in each hot leg using approved in-line fuseholders located inside the units or in a junction box when so indicated in the contract.
Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 245–245 of 1,048.