ITEM 631 ELECTRICAL SIGNS
631.01 Description. This work consists of furnishing and installing electrical sign equipment,
complete, tested, and ready for service.
631.02 General. Perform installations according to the National Electrical Safety Code, the
National Electrical Code and local codes for the area of installation. Furnish shop drawings according to 625.06. Conform to the requirements of Supplement 1063 for the installation or testing of electrical items installed under 631.08 and 631.09. Protect wire and cable by installing entirely within support structure interiors, enclosures, junction boxes, and rigid or flexible conduit. Ensure that the methods, materials, and locations of splicing and the methods of connecting and identifying wire and cable conform to 625, 725, and the plans. Furnish grounding systems according to 625.16. Power service is furnished under 625.
631.03 Materials and Equipment . Furnish materials and equipment that are new, of first
quality, of current design, and free from defects. Use electrical parts, wire, switches, and other elements of the installations that are of ample capacity to carry the required current without excessive heating or drop of potential. Ensure that each item of equipment bears a nameplate, indelible marking, or brand that identifies the type, model, catalog number, and manufacturer. Furnish materials conforming to the following: Ground rod ....................................... 625.16 Sealing, conduit................................ 625.12 Cable and wire, 600-volt .................. 725.02 Conduit, rigid ................................... 725.04 Power service ................................... 725.19 Internally illuminated fixed message sign ................................. 731.05 Sign flasher assembly ...................... 731.06 School speed limit sign assembly .... 731.07 Conduit, flexible .............................. 731.08 Timer with enclosure ....................... 731.10
631.09 Electrical Signs. OMUTCD Part 2 provides additional guidance regarding sign
enhancement.
A.Internally Illuminated Signs. Furnish LED internally illuminated signs consisting of the single or double face type. The sign support is furnished under another pay item. Furnish suspended signs that hang plumb, are properly oriented, and locked in place.
B.LED Enhanced Signs. Furnish signs consisting of LEDs within the symbol, legend, or border of the sign. The sign support is furnished under another pay item.
C.Sign Beacon Assembly. Furnish sign beacon assemblies consisting of a pair of flashing beacons. The sign, support, and foundation are furnished under other pay items.
D.School Speed Limit Signs With Flashing Beacons. Furnish school speed limit signs with flashing beacons that conform to the Contract Documents. School speed limit signs with flashing beacons consist of a retroreflectorized SCHOOL SPEED LIMIT XX DURING RESTRICTED HOURS (S5 - H1) sign fitted with a pair of flashing beacons arranged above and below. When specified, furnish and install the timer with enclosure to provide automatic school speed limit sign operation.
631.10 Removal. Carefully remove equipment. Removed items become the property of the
Contractor.
631.11 Inspection and Testing. Ensure that electrical signs meet all requirements of the ground,
cable insulation, and performance tests specified in 625.19. Correct components that failed during the performance test by replacing the faulty component; the entire test period will not require restarting. During the performance test, make final adjustments to sign lateral position and aiming angles to obtain optimum visibility and legibility, to the satisfaction of the Engineer.
631.12 Method of Measurement.
The Department will measure Internally Illuminated Fixed Message Sign by the number of each, and will include all mounting and support hardware, all connections made and wiring complete tested and accepted. The Department will measure LED Enhanced Sign by the number of each, completely installed in place and fully functional including all material, labor, and equipment required, including all mounting and support hardware, tested and accepted. The Department will measure Sign Beacon Assembly by the number of each, and will include beacons, flasher control unit with enclosure, and lamps. The Department will measure School Speed Limit Sign with Flashing Beacons, Solar Powered by the number of each, and will include all labor, materials, tools, equipment, testing, certifications and other incidentals necessary to furnish the solar powered sc hool zone flasher complete in place, including S5-H1 and S5-3 signs, two front-facing beacons, one rear facing beacon, flasher control unit with enclosure, pedestal with transformer base, solar panel, lamps, all connections made, wiring complete tested and accepted. The Department will measure Timer with Enclosure by the number of each, and will include field drilling and padlocks. The Department will measure Removal of sign lighting equipment or electrical signs by the number of each like items removed.
631.13 Basis of Payment. The Department will pay for grounding systems under Item 625.
The Department will pay for accepted quantities at the contract prices as follows: Item Unit Description 631 Each Internally Illuminated Fixed Message Sign, Type ___ 631 Each LED Enhanced Sign 631 Each Sign Beacon Assembly 631 Each School Speed Limit Sign with Flashing Beacons, Solar Powered 631 Each Timer with Enclosure 631 Each Removal of (Luminaire, Disconnect Switch, Ballast, etc.)
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Source: Construction and Material Specifications, 2023 (rev. 7/17/2026) Edition. Pages 566–568 of 892. View official source ↗