- 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. Luminaires 412.05 - 213 - c. Wall mounted/underdeck/overhead luminaires shall be adjusted for optimum light distribut ion as directed by the Engineer.
5.Sign Lighting Luminaires: a. The sign lighting luminaires shall be mounted as shown in the contract and in accordance with the manufacturer's instructions.
b.The lamps shall be 150 watt high pressure sodium or as shown in the contract.
c.All conductors shall be copper and shall be installed in conduit.
d.The feeder cable shall be a minimum No. 8 gauge (3.25 mm) diameter THWN with a 30 ampere circui t breaker at the service entrance.
e.Each sign structure shall be controlled by a 15 ampere, 2 pole NEMA 3R breaker at a location convenient for luminaire maintenance.
f.Each sign structure shall have a photoelectric control mounted near the sign unless the sign luminaires are tied into the roadway lighting photocells.
g.The relays for switching the line current to the lighting fixtures shall be mounted near the circuit breaker or as directed by the Engineer.
6.Luminaire Conversion:
a.The Contractor shall inst all new luminaires with lamps on existing poles as indicated in the cont ract. The Contractor shall provide new internal pole and mast arm wiring with in-line fuseholders and fuses.
b.The existing luminaires will become the property of the Contractor and shall be removed from the project site.
c.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.
d.Unless otherwise indicated in the contract or directed by the Engineer, luminaires will be installed level in both horizontal axes.
e.The month and year of installation shall be permanently indicated on the base of each lamp.
412.04 Method of Measurement
1.Luminaires, luminaire conver sions, and wall mounted/underdeck/ overhead luminaires shall be measured by the each.
412.05 Basis of Payment
1.Pay Item Pay Unit Luminaire, Type _____ Each (ea) Underdeck Luminaire, Type _____ Each (ea) Luminaire Conversion, Type _____ Each (ea) High Mast Luminaire, Type _____ Each (ea)
2.Payment is full compensation for all work described in this Section. - 214 - SECTION 413 -- LIGHTING CONTROL CENTERS
413.01 Description
1.New Lighting Control Center: The Contractor shall furnish and install a new lighting control center of the size and type shown in the contract. This work includes the relay, disconnect, contactor, pole, control cabinets, grounding devices, photo control, conduit, concrete, fittings, excavating, backfilling, compacting, and all other items required for a complete in stallation.
2.Relocate Existing Control Center: The Contractor shall relocate the lighting control center as shown in th e contract. The lighting control center shall be carefully dismantled, stor ed, and protected from damage. The Engineer may designate specific areas for temporary storage of the materials. The lighting control center sh all be installed at the described new location and connected electrically as shown in the contract. Missing or damaged components shall be replaced by the Contractor before final payment will be made.
3.Temporary Lighting Control Center : The Contractor shall install the temporary lighting control center as described in the contract.
4.Department Furnished Material:
a.If the Department is furnishing the lighting control center, the items and the location where they are to be picked up will be shown in the contract. The Contractor shall provid e all other materials required for a complete installation and shall install all materials as shown in the contract.
b.The Contractor shall contac t the Engineer for additional details associated with obtaining the Departm ent-furnished material. The Engineer will supply the Contractor with a completed "Stock Requisition." The Contractor will not be issued material s without a properly completed "Stock Requisition."
413.02 Material Requirements
1.Lighting control centers shall c onform to the requirements shown in the contract and Section 1073.
413.03 Construction Methods
1.Control Center Location:
a.The location at which the Cont ractor is to install the lighting control center has been prearranged with the local utility and this location will be shown in the contract. Lighting control center locations are approximate and subject to change.
b.The Contractor shall be requ ired to contact the Utility Company and the Department prior to installing t he conduit, cable, and lighting control center to determine if the location for the electrical service remains as shown in the contract. If the location for the service has changed, the Contractor shall advise the Engineer of this change and shall not install the lighting control center, conduit and cable unt il he has received the Engineer’s approval of a new location.
c.The Contractor shall be fu lly responsible for installing the lighting control center at its correct location. If installed at an incorrect
Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 246–247 of 1,048.