SECTION 422—NA VIGATION LIGHTS
422.01 Description
This work shall include furnishing, installing, and wiring navigation lights complete and ready for service on structures shown on the plans or as directed by the Engineer.
422.02 Materials
a.Conduit, boxes, and fittings shall conform to Section 238.
b.Conductors and electrical components shall conform to Section 238. The Contractor shall use No. 8 single-conductor wire from the connection at the service pole to the first junction box on the structure, and No. 10 single-conductor wire for other related wiring.
422.03 Procedures
a.Electrical Service: Power will be furnished within 100 feet of the end of the bridge by 120/240- volt single-phase, 60-hertz, three-wire service. The Contractor shall furnish and install a wooden pole on which the power company will terminate its service lines. The Contractor shall install service entrance equipment on the wooden pole in accordance with the details and requirements of Standard Drawing SE-8. The safety switch shall be rated at 30 amp, 240 volts, two pole, solid neutral 120 volt AC, and fused for 15 amps.
b.Conduit, Boxes, and Fittings: These items shall be installed in accordance with Section 700, as applicable.
c.Lights: The Contractor shall furnish and install lights in accordance with the latest rules and reg- ulations for lighting bridges furnished by the U.S. Coast Guard and such lighting shall be subject to their approval. Materials and workmanship shall conform to the standards of NEC and the requirements of the local power company. Lights shall be equipped with an automatic lamp changer with a capacity of four lamps and a step-down transformer to operate standard low-voltage prefocused lamps. Lights shall turn on and off automatically so that they will burn continuously from sunset to sunrise. Lights shall be controlled by a photoelectric control. The control shall operate a two-pole, 30-amp, normally open, magnetic relay mounted in a NEMA 3R control center cabinet. The Contractor shall mount the control for the lights on the service pole. 422.03
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Source: Road and Bridge Specifications, 2020 Edition. Pages 627–627 of 1,065. View official source ↗