714.01 756 SECTION 714 – ROADWAY AND STRUCTURE LIGHTING
714.01 Description ................................ ................................ ................... 756
714.02 Materials ................................ ................................ ...................... 757
714.03 Codes ................................ ................................ ............................ 758
714.04 Reserved ................................ ................................ ....................... 759
714.05 Conduit ................................ ................................ ......................... 759
714.06 Pull Boxes ................................ ................................ .................... 762
714.07 Underground Cable for Lighting Circuits ................................ .... 763
714.08 Light Standards ................................ ................................ ............ 765
714.09 Bracket Arms ................................ ................................ ............... 767
714.10 Luminaires ................................ ................................ ................... 767
714.11 Lamps ................................ ................................ ........................... 770
714.12 Installation of Overhead Wires ................................ .................... 770
714.13 Cable Markers ................................ ................................ .............. 770
714.14 Co ntrol Center ................................ ................................ .............. 770
714.15 Field Painting ................................ ................................ ............... 771
714.16 Testing After Installation ................................ ............................. 771
714.17 Repair of Seeded and Sodded Areas ................................ ............ 773
714.18 Disposal of Excess or Unsuitable Material ................................ .. 773
714.19 Final Cleanup ................................ ................................ ............... 773
714.20 Method of Measurement ................................ .............................. 773
714.21 Basis of Payment ................................ ................................ .......... 776
DESCRIPTION
714.01 Description
This work consists of furnishing and installing roadway and structure lighting systems complete or to th e extent shown on the Plans. 714.02 757 MATERIALS
714.02 Materials
Provide materials as specified in 917 and as follows: Portland Cement Concrete, Class A ................................ ............ 604 Crushed Stone Grading D ................................ ...................... 903.05 Steel Bar Reinforcement for Concrete Structures .................. 907.01 Welded Steel Wire Fabric ................................ ...................... 907.03 Gray Iron Castings ................................ ................................ . 908.07 Inorganic Zinc Paint ................................ .............................. 910.03 Cement Concrete Curing Materials ................................ ............ 913 Conduit ................................ ................................ .. 917.05 or 917.07 Within 30 days after the issuance of the work order , submit to the Engineer, four collated sets of the manufacturer’s descriptive literature and technical data, fully describing the types of lighting equipment proposed for use. In the descriptive literature, identify the manufacturer and model, and include sufficient information for the Engineer to determine if the equipment or material meets the requirements of the Plans and these Specifications. Include with these sets of submittal data a list of the materials submitted along with descriptive material for, but not limited to, the follo wing items when applicable:
1.Complete photometric data of luminaires as published by the manufacturer with independent testing laboratory results.
2.Computer printouts showing illumination levels throughout each interchange area where high mast luminair es are to be installed.
3.General details of light standards, breakaway bases, and bracket arms. For light standards taller than 30 feet, submit one set of design calculations and six prints of “Design” or “Shop” drawings to the Division of Structures fo r approval purposes. The Department will review these drawings at the earliest possible date, and will return two prints marked “Approved for Fabrication,” or “Returned for Revisions as Noted.” Respond by taking appropriate action to ensure the earliest possible correction of these items so as not to delay the installation.
4.Highmast tower details with a set of design calculations for each height including access hole, base, anchorage, head frame, and 714.03 758 lowering device. Include specification references f or materials and location, type, size, and extent of welds. In addition to the set of design calculations, submit six prints of “Design” or “Shop” drawings for each highmast tower height to the Division of Structures for approval purposes, in a manner sim ilar to that specified in Item 3 above for light standards taller than 30 feet.
5.Dimension sheets and performance data on all related equipment. The Engineer will retain one copy and forward one copy each to the local entity (city or county engineer) and the Traffic Operations Division for their review. Also include with t he submittal sets detailed scale drawings of all non- standard or special equipment and of all proposed deviation s from the Plans. Deviations from the Plans or Specifications require app roval from the Traffic Operations Division. Include a letter requesting deviations or alternate materials in the submittal for Traffic Operations D ivision approval. Upon request, submit for approval sample articles of materials proposed for use. The Dep artment will not be liable for any materials purchased, labor performed, or delay to the Work prior to such approval. In addition to the above, include with each submittal a notarized letter certifying that all lighting system materials listed in the submi ttal conform to the Plans and Specifications. Also submit to the Engineer a statement from the Maintaining Agency that all lighting system materials listed in the submittal are acceptable to the Agency.
714.03 Codes
Furnish material and perform all work in strict accordance with the latest revision of the National Electrical Code , the National Electrical Safety Code , the Illuminating Engineering Society (IES) publications, ANSI standards, and the codes, regulations, and rules prevailing in the area in which the Work is being performed, as applicable. 714.04 759 714.04 Reserved CONSTRUCTION REQUIREMENTS
714.05 Conduit
Install conduit of the type and size specified at the locations shown on the Plans, or as directed by the Engineer. Install pull or drag wires of the type and size specified in conduit at the locations shown on the Plans.
A.Underground Conduit
1.General. Underground conduit shall consist of encased or direct burial conduit. Install conduit in a trench excavated to the dimensions and lines specified. Before beginning any excavation, determine the location of all electrical, drainag e, and utility lines in the vicinity, and perform work so as to avoid damaging these facilities. Ensure that the conduit will be located so as to avoid conflict with proposed guardrail, sign posts, and other features. Build conduit runs in straight lines where possible. Where sweeps are necessary, use standard long sweep conduit bends when feasible, and meet the minimum radius required by the National Electric Code. Install pull boxes at intervals so that the tensile strength of the conductors will not b e exceeded. Obstructions encountered when excavating trenches for underground conduit may require minor changes, such as in locations of conduit runs and pull boxes. Obtain the Engineer’s approval before making such changes. Where possible, provide a minimum of 12 inches between the finished lines of conduit runs and utility facilities, such as gas lines, water mains, and other underground facilities not associated with the electrical system. Where the conduit run is adjacent to concrete walls, piers, fo otings, and similar structures, maintain a minimum of 4 inches of undisturbed earth or firmly compacted soil between the conduit and the adjacent concrete or, when the conduit is encased, between the encasement and the adjacent concrete. 714.05 760 Unless shown on th e Plans, do not excavate trenches in existing pavement or surfaced shoulders to install conduit. If it is necessary to place a conduit under an existing pavement, install the conduit by jacking or other approved means with galvanized rigid steel conduit or schedule 80 PVC conduit. Keep jacking and drilling pits at least 10 feet from the edge of the paved shoulder or sidewalk unless otherwise directed by the Engineer. When the Plans specifically allow excavation of a trench through an existing pavement or surfaced shoulder, restore the pavement and/or surface and base to their original condition. Do not leave boring pits open for extended periods of time. Unless otherwise specified, cut trenches for conduit on a slight grade for drainage, and make the wa lls of the trench essentially vertical. Tamp the bottom of the trench as necessary to produce a firm foundation for the conduit. Excavate trenches for rigid metallic conduit, with or without encasement, to a minimum depth of 18 inches, plus conduit diameter, measured from the finished subgrade. Sheet and brace the trenches as required, and adequately support all pipe and other structures exposed in trenches as necessary to prevent damage. Ream metallic conduit after threads are cut. Ream other conduit a s necessary. Cut all ends square and to butt solidly in the joints to form a smooth raceway for cables. Ensure that conduit joints form a water -tight seal. Coat metallic conduit threads with pipe compound and then securely connect. Make conduit joints w ith the materials and in the manner recommended by the conduit manufacturer and as approved by the Engineer. Install conduit bushings in conduit where necessary and required for protection of the conductors. When the conduit is installed for future use, e nsure that the ends of metallic conduit runs are properly threaded and capped, and that the ends of non -metallic conduit runs are satisfactorily plugged or capped to prevent water or other foreign matter from entering the conduit system. 714.05 761 a. Encased Conduit . Place encased conduit under roadway and paved shoulders unless trenching is required for installation at the locations shown on the Plans . Unless otherwise specified, construct encasement as follows :
1.Construct t he encasement of Class A concr ete meeting the requirements of 604.
2.Extend the encasement of conduit under roadway pavements or surfaces to the outer edges of the surfaced or paved shoulders, or 1 foot beyond the outer edge of the sidewalk, or 1 foot beyond the outer edge of the curb when no shoulder or sidewalk is indicated.
3.Extend the conduit at least 6 in ches beyond the encasement.
4.Encase the pipe with a minimum of 3 in ches of concrete.
5.Plug the ends of the conduit temporarily to prevent the entrance of concrete or other foreign material.
6.Do not encase any conduit with concrete until inspected and approved by the Engineer.
7.Cure concrete encasement as specified in 604.23, except that the curing period may be reduced to 24 hours if backfilling is to proceed at th e time specified in 714.05.A.2 .
b.Direct Burial Conduit . When rock is encountered in the bottom of the trench, install the conduit on a bed of well compacted fine grain soil at least 4 inches thick.
2.Backfilling Conduit . Do not backfill encased conduit until the concrete encasement ha s cured a minimum of 24 hours. After the Engineer has inspected and approved the installation of direct burial conduit, promptly backfill to the required grade with approved material in layers not exceeding 6 inches in loose depth and compact each layer a s directed by the Engineer. 714.06 762 B. Conduit on Structures Install conduits, conduit fittings, hangers, expansion fittings, and accessories as shown on the Plans and, unless otherwise specified, in accordance with the following:
1.Run conduit parallel to beams, trusses, supports, pier caps, and similar features in the most direct manner.
2.Install horizontal runs on a slight grade, without forming low spots, to ensure proper drainage.
3.Run conduits with smooth, easy bends.
4.Hold conduits in boxes with locknuts and provide bushings for protection of the conductors.
C.Testing Conduit After completing the installation of conduit, test it with a metallic mandrel in the presence of the Engineer. Use a mandre l having a diameter ¼ inch smaller than the conduit, and a length of 2 inches. Repair, to the Engineer’s satisfaction, all conduits that will not allow passage of the mandrel. If repairs cannot be accomplished, remove and replace the conduit at no additi onal cost to the Department. After the mandrel test, scour all conduits with a stiff wire brush having a slightly larger diameter than the conduit. Test conduits that have been installed under a previous contract with a mandrel and clean as described above before installing the cables.
714.06 Pull Boxes
Construct pull boxes in accordance with the design, dimensions, and at the locations shown on the Plans. Construct concrete pull boxes of Class A concrete meeting the requirements of 604. Place non -metallic pull boxes only in non-traffic bearing locations and not in paved areas. Provide a cast iron frame and cover or reinforced concrete cover, as shown on the Plans, with each pull box. 714.07 763 Plug unused conduit en trance holes and openings for conduit to be extended by others with suitable plugs of plastic, bituminous fiber, or other approved material to prevent the entrance of foreign matter.
714.07 Underground Cable for Lighting Circuits
Underground cable for lighting circuits shall consist of direct burial cable, preassembled cable in duct, or cable in conduit, as shown on the Plans. If it is necessary to install a cable under an existing pavement or surfaced shoulder, install conduit, when specified, in accordance with the applicable provisions of 714.05, and place the cable within the conduit. Construct walls of trenches for cables to be essentially vertical. Unless otherwise specified , install underground cable as follows:
1.Excavate trenches for direct burial cable to a minimum depth of 24 inches plus the cable diameter as measured from finished subgrade.
2.In general, locate the trenches to avoid conflict with proposed guardrail, sign posts, and other features.
3.Protect direct burial cable, and preassembled cable in duct, in trenches by cushioning with sand or earth that passes a ¼-inch screen. Place the cable, or preassembled cable in duct, and sand or earth in the trench so th at a minimum 3 -inch thickness of the cushion material will surround each cable.
A.Direct Burial Cable Do not unreel cables and pull into the trench from one end. Unreel the cables, lay them alongside the trench, and then lay in the trench. Allow the cables to “snake” slightly in the trench to provide adequate slack for settling of earth. Ensure that there are no crossovers of cable in the trench. Where cable is brought up into the base of the lighting standard, leave sufficient slack for making the connec tions inside the standard.
B.Preassembled Cable in Duct When installing in the trench, do not pull preassembled cable in duct taut, but allow it to “snake” in the ditch to provide not less than 18 inches 714.07 764 slack per 100 feet of trench. The minimum bending rad ius on the cable duct shall be 18 inches. Where the duct is brought into the base of the lighting standard or into a pull box, leave sufficient length for trimming the duct to expose enough cable to allow for the connections to be made inside the standard or pull box.
C.Cable in Conduit Carefully pull cables in conduits into place using approved methods so that the cable will be installed without electrical or mechanical damage. Pull all cables within a single conduit at the same time. If necessary, to ease the pulling, use a lubricant of the type recommended by the cable manufacturer. When cables are pulled through hand holes in pole shafts, place a pad of firm rubber or other suitable material between the cable and the edges of the openi ng to prevent cable damage. After the cable has been installed in the conduit, seal the ends of buried conduit with approved pliable and non -hardening material to prevent the entrance of dirt, moisture, or other foreign material.
D.Splices Splice conductors as shown on the Plans. Only make splices at accessible points, such as handholes and pull boxes, unless otherwise shown on the Plans. After making a conductor splice, insulate it with heat-shrinkable tubing, supplied b y the manufacturer, with an adhesive coating on the inner wall.
E.Ground Wire Install ground conductors of the type and size shown on the Plans, and to be continuous in trenches with direct burial cable, and continuous inside preasse mbled cable in duct, and in conduit. Connect the ground conductors to the ground rod at all control points, to the ground lug in pole foundations, and to all metallic conduit runs using a grounding bushing, except that the connections to conduit in pole f oundations may be omitted. Make all connections as shown on the Plans.
F.Backfilling Underground Cable Backfill cable as specified in 714.05. 714.08 765 G. Cable Identification To assist in the identification of circ uits at the pull boxes, mark the phase conductors with colored rubber -based, or equivalent, paint. When final connections are made, provide permanent tape wire markers to identify the branch circuit conductors (X1A, X1B, etc.), neutral (X1N, etc.), and the ground (g).
714.08 Light Standards
Install light standards of the designated design, kind, size, and class in accordance with and at the locations shown on the Plans. Ensure that the installed standards, complete with the bracket arm(s) and luminaire(s) as specified, provide the mounting height shown on the Plans. Determine the pole height as required by bracket arm upsweep, slope conditions, and similar characteristics .
A.Foundations for Light Standards Consider transformer bases to be an integral part of the lighting standard unless otherwise specified.
1.Bolt-Down Base Pole Foundations
a.Concrete Foundations. Excavate a hole of the size and depth shown on the Plans. Remove and dispose of all excava ted material as directed by the Engineer. Place anchor bolts of the type and size specified according to the pole manufacturer’s recommendations, and securely hold to ensure proper position in the completed foundation. Ensure that no realignment of anchor bolts will occur after the foundation is poured. Accurately place reinforcing steel and securely hold to avoid displacement. Accurately place conduits in foundations, orient them in the proper direction to accommodate service cables, and securely hold to avoid displacement. Place Class A concrete in the excavated area against undisturbed earth to an elevation 4 inches below the finished ground line, and in an approved form from 4 inches below said ground line to the finished top of foundation elevation, as specified. Construct the foundation with a continuous concrete 714.08 766 pour. Chamfer the edges of the top and formed portion of the foundation. Apply a Class II finish, as specified in 604.21.B, to the portion of the foundation a bove grade and within 4 inches of grade.
b.Metal Foundations. Install metal foundations where shown on the Plans and, if desired, at locations where installation is possible without predrilling the hole.
2.Prestressed Concrete Butt Base Pole Foundations . Excavate prestressed concrete butt base lighting standard foun dations using manual or mechanical methods. Dig or drill the holes to the depth and the diameter shown on the Plans. Place and compact in the bottom of the hole 6 inches of crushed stone, meeting the requirements of 903.05, Grading D.
3.Wood Poles . Excavate for wood poles as specified for prestressed concrete butt base pole foundations in 714.08.A.2 . Dig or drill the holes to the depth shown on the Plans and in such diamete r to allow satisfactory use of mechanical tamping equipment .
B.Light Standard Installation Handle the standards or poles as recommended by the manufacturer and approved by the Engineer. Accomplish erection without marring the finish or otherwise damaging th e standard. Ground the light standards as shown on the Plans. When installing lighting on a bridge, review the proposed bridge plans or the completed structure before ordering the standards.
1.Bolt-Down Base Poles. Set standards with bolt -down bases on foundations constructed as specified in 714.08.A.1 . Use metal shims supplied with the poles to plumb the pole, if the twin bracket arm type is used; and, unless otherwise specified, to rake or lean the pole backward 4 inches, if the single bracket arm type is used.
2.Prestressed Concrete Butt Base Poles. Place prestressed concrete butt base lighting standards in the hole and on the layer of crushed stone prepared as specified in 714.08.A.2 . Position the pole in the center of the hole at grade and hold in place. Rake the lighting standards with single bracket arms as specified for poles with bolt - down bases in 714.08.B.1 . Set lighting standards with two bracket arms plumb. Fill the space surrounding the pole butt -base with 714.09 767 crushed stone, applied in 6 -inch layers. The crushed stone shall meet the same requirements specified for the stone foundation in
714.08 A.2 . Moisten the stone backfill material as necessary, and
thoroughly compact each layer with mechanical tamping equipment. Continue the backfill with crushed stone to the depth of the bottom edge of the cable entrance in the butt base. Af ter completing the installation of the electrical cable, continue placing the crushed stone backfill in 6 -inch layers, and compact to a depth of 1 foot below grade. Backfill the remaining 12 inches with soil in two equal layers, and thoroughly compact eac h layer.
3.Wood Poles . Place wood poles in holes excavated as specified in
714.08 A.2 . Set the pole in the center of the hole, with any vertical
curvature of the pole located in the plane of the lines, and rake in a direction opposite that of the unbalanced stress where a guy or underbrace is specified. Backfill the hole with approved ma terial applied in 6 -inch layers, and thoroughly compact each layer with mechanical tamping equipment. Install cross arms and guying components, when specified, as shown on the Plans.
C.Highmast Tower Installation Install stand ards with lowering devices on foundations constructed as shown on the Plans. Ensure that the standards are plumb. Assemble the shaft in the Engineer’s presence. Do not perform any field welding between sections of the shaft. Erect the tower according t o the manufacturer’s recommended procedures and under the manufacturer’s supervision. Make adjustments to align all parts and ensure operation. Arrange for the manufacturer or its representative to instruct the local utility in the proper operation of th e lowering device.
714.09 Bracket Arms
Install, on the lighting standards, bracket arms of the specified type, design, kind, dimensions, and number as shown on the Plans.
714.10 Luminaires
Use the following luminaire types on the roads and bridges: High Intensity Discharge (HID) which includes High Pressure Sodium (HPS) and Metal Halide (MH); Fluorescent and Induction lamps; and Light Emitting Diode (LED). 714.10 768 Install luminaires of the design and size shown on the Plans, and level according to the manufacturer’s recommendations, as shown on the Plans and as approved by the Engineer. Provide glare shields on luminaires when shown on the Plans. Clamp the pole and bracket cable in the proper terminals on the terminal board in the luminaire, and then splice the cable to the proper phase and neutral conductors outside of the handhole in the pole base. After other required circuit splices are made outside of the handhole, place all of the wire inside the ha ndhole. Leave slack in all cables for future maintenance. Attach a suitable identification tag to each of the phase cables. Clean luminaire reflector surfaces and glassware after installation. Perform cleaning, if required, according to the luminaire ma nufacturer’s recommendations. Ensure that luminaires for sign lighting are adjustable both horizontally and vertically.
A.High Intensity Discharge (HID) High Intensity Discharge (HID) luminaires shall meet IES standards from LM-51-00 to LM -35-02. The HID lu minaire shall be covered by a one-year written warranty starting from the system acceptance date. All the other electrical and mechanical component parts of the HID shall be covered by a five -year written warranty starting from the system acceptance date. The signed warranty certificate shall be submitted prior to final payment.
B.Light Emitting Diode (LED) Light Emitting Diode (LED) luminaires shall be manufactured in accordance with ANSI C136.37 -2011 (or recent version). All testing and data sheets for p roposed LEDs shall be included in the submittal package and shall include, but not limited to, the following: Illuminating Engineering Society of North America (IESNA): LM -79-08, LM-80-08, RP-8-14, TM-3-95, and TM -15-07 (all should be up -to-date versions) . In addition to these requirements, the LEDs shall meet the following requirements:
1.Finished surface. Furnish luminaires with the color mentioned in the plans. The surface of luminaire housing shall meet UL -1598 714.10 769 listed for wet locations, ASTM B117 for salt chamber exposure, and ASTM D1654 for rust creepage.
2.Thermal Management . The luminaire shall start and operate in the ambient temperature range of -25C to +25C.
3.Optical Assembly . The LED optical assembly package shall have a minimum Ingress Protecti on rating of IP 66 according to ANSI/IEC 60529. The luminaire shall have a standardized refractor/reflector to meet the required optical distribution as required by the plans. The optical assembly shall utilize high brightness, long life, minimum 70 colo r rendering index (CRI), (3000 K-5700 K) color temperature (+/ -300 K) LEDs binned according to ANSI C78.377. Lenses shall be UV -stabilized acrylic or glass. Provisions for house -side shielding shall be provided when specified.
4.Prevent the entrance of wil dlife by limiting openings around the pipe tenon mounting area.
5.Electrical Parts (including Safety Testing) shall comply with an ANSI C136.41 with 7 -pin receptacle that is fully pre -wire for LED driver’s control.
6.Documents for the materials submitted need a certification from a National Voluntary Laboratory Accreditation Program (NVLAP) and that lab must be recognized by the U.S. Department of Energy.
7.The entire LED luminaire and all of its component parts shall be covered by a 10 year written warranty cove ring materials, fixture finish, and workmanship. Failure is when one or more of the following occur:
a.Negligible light output from more than 10 percent of the LED packages.
b.Condensed moisture inside the optical assembly.
c.Driver that continues to operate at a reduced output below 15 percent of the rated nominal output. The warranty period shall start from the system acceptance date. The signed warranty certificate shall be submitted prior to final payment. 714.11
714.11 Lamps
Install lamp s of the design, type, and size, and at the locations shown on the Plans.
714.12 Installation of Overhead Wires
Install overhead wiring, when specified, as shown on the Plans.
714.13 Cable Markers
When shown on the Plans, place precast or cast -in-place concrete cable markers, of the dimensions indicated, at all locations where lighting cables make an abrupt change in direction. Constru ct the markers of Class A concrete meeting 604. Imprint an arrow on each marker to indicate the direction of the cable run as it approaches and leaves the marker. Also imprint the circuit number on the marker. Recess the ma rkers into the ground approximately 3 inches, unless otherwise specified.
714.14 Control Center
Furnish and install a service pole or poles of the design, type, size, and class, and at the locations shown on the Plans. Install the s ervice pole(s) as specified in 714.08 and as shown on the Plans. Set the service pole(s) plumb. Notify the power company, at least 30 days before connection, of the need to furnish power to operate the lighting system. Unless ot herwise specified, furnish and install all the control center equipment and electrical supply facilities. The electrical supply facilities shall include the necessary service conduit from the control cabinet to the delivery point designated on the Plans. Construct a concrete slab, of the dimensions and thickness indicated, around the service pole foundation. Construct the slab of Class A concrete meeting the requirements of 604, and reinforce the slab, if specified, as shown on the Plans. 714.15 771 Construct a 6 -foot chain -link fence and gate of the size specified around the control center as shown on the Plans and as specified in 707.
714.15 Field Painting
After erection is completed, thoroughly clean steel standards that are not galvanized, and then apply two coats of inorganic zinc paint meeting the requirements of 910.03. Perform painting as specified in 603. If the shop coat of prime paint i s damaged, cover the damaged areas with a coat of the same type of paint as used for the original primer coat, and allow it to completely dry before applying the first coat of aluminum paint. If the finish on galvanized steel materials is scratched, chippe d, or otherwise damaged, the Engineer will reject the material, or may allow it to be repaired as specified in 713.04.B.
714.16 Testing After Installation
Install all materials and equipment to form a complete installation ready for operation, unless otherwise specified. After the installation is completed, test the lighting system in the presence of a Department representative and the Maintaining Agency. Tests shall include insulation resistance, voltage, current, and performance tests. Unless otherwise specified, perform the tests in accordance with the following:
A.Voltage Tests Take a voltage reading at the control center at the load side of the circuit protection device and the last lighting standard served in each branch circuit. In cases where the circuit feeds in two or more directions, take the voltage reading at the light most remote from the control point or as directed by the Engineer. Unless otherwise specified, wit h the complete lighting system energized and all lamps operating, the voltage of this last standard shall not be less than 90% of the nominal rated voltage of the luminaire supply circuit, and the voltage at the last underpass luminaire in each branch circ uit shall not be less than the minimum operating voltage recommended by the manufacturer of the luminaire ballast. 714.16 772 B. Current Test Conduct current tests at each control center at the load side of each circuit protection device, using a clamp -on type ammeter. Current, in amperes, in each supply conductor shall not be greater than the rated current of a luminaire times the number of luminaires in the circuit.
C.Grounding Resistance Test Conduct ground resistance tests with a “megge r,” manufactured by the James H. Biddle Company, or a “vibraground” manufactured by Associated Research Incorporated or approved equal. Adhere to the following when conducting this test:
1.Ensure that no equipment, such as ballast or oil switches, is connected at the time of the test.
2.Test only one conductor at a time.
3.Isolate the conductor being tested from ground.
4.Ensure that the other phase conductor and the neutral are grounded during each test.
D.Performance Tests Prior to acceptance and after all faults have been corrected, operate the lighting system, including automatic control equipment and other specified apparatus, for a continuous 48 -hour period without interruption or failure attributable to poor wo rkmanship or defective material. After the 48 hours of continuous operation, the Engineer will inspect all lights and equipment for normal operation. Make all necessary repairs or replacements to the Engineer’s satisfaction. Make arrangements with the Se rvicing Agency to purchase the electric power necessary to conduct all tests. Furnish the Engineer five copies of the test results, together with five copies of a statement from the Maintaining Agency that the system is acceptable to the Agency. 714.17 773 714.17 Repair of Seeded and Sodded Areas If areas previously seeded or sodded are disturbed during the performance of the work described in this Section, reseed (with mulch) or re -sod such areas as specified in 801 or 803, respectively. Perform these repairs as the work progresses to minimize erosion of disturbed areas.
714.18 Disposal of Excess or Unsuitable Material
Dispose of excess or unsuitable material as specified in 203.07.
714.19 Final Cleanup
Perform final cleanup as specified in 104.10. Remove existing foundations, designated for removal, to a minimum of 6 inches below grade. Before final inspection, touch -up finishes, clean surfaces including signs that are lighted, and perform such other work as directed by the Engineer to ensure the effectiveness and neat appearance of the work. COMPENSATION
714.20 Method of Measurement
When the bid schedule contains an item for Roadway and Structure Lighting on a lump sum basis, measurement will be for the sum of all items to be furnished and installed. When the bid schedule contains items for various elements of Roadway and Structure Lighting, the Department will make measur ement for payment as follows:
A.Conduit The Department will measure:
1.Encased Conduit and Direct Burial Conduit by the linear foot of conduit for each kind, number, and size installed as indicated, and
2.Conduit (Structures) of the kind and size specified by the linear foot of each individual kind and size of conduit place d. 714.20 774 B. Pull Boxes The Department will measure Pull Boxes by the unit, per each.
C.Cable The Department will measure Cable of the type, and number and size of conductors specified, by the linear foot from the center to center of pull boxes, light standards, and s imilar features, for each type and number and size of conductors. No additional allowance will be made for slack length, length inside equipment or standards, and similar instances requiring additional length of wire.
D.Preassembled Cable in Duct The Depart ment will measure Preassembled Cable in Duct by the linear foot from the center to center of pull boxes, light standards, and similar features. No additional allowance will be made for slack length.
E.Light Standards The Department will measure Light Standa rds of the kind and design specified by the unit, per each.
F.Luminaires The Department will measure Luminaires of the size, type, and design specified by the unit, per each , regardless of their classifications (i.e. LED, HID) .
G.Overhead Conductors The Depart ment will measure Overhead Conductors of the gauge, type, and kind specified by the linear foot between supports. No allowance will be made for slack length.
H.Cable Markers The Department will measure Cable Markers by the unit, per each. 714.20 775 I. Control Center The Department will measure the Control Center on a lump sum basis. Such measurement will be for the sum total of all items to be furnished and installed at the control center, except as specified in 714.20.J and
714.20 K .
J.Class A Concrete The Department will measure Class A Concrete used to construct the concrete slab around the service pole at the control center by the volume in cubic yards, as determined from the specified thickness sh own on the Plans and surface measurements for width and length. The Department will not measure reinforcement for the concrete slab for payment but will consider the costs thereof as incidental to the item for Class A Concrete.
K.Chain-Link Fence and Gate The Department will measure and pay for Fence and Gates in accordance with 707.08 and 707.09, respectively.
L.Navigational Lighting and Overhead Sign Lighting The Department will measure Navigational Light ing and Overhead Sign Lighting furnished and installed in accordance with the Plans on a lump sum basis.
M.Incidental Items The Department will consider incidental, and will not directly measure, the following :
1.Excavation and backfilling performed in connection with this construction.
2.The removal and satisfactory disposal of existing pavement, surface, and base required to install conduit, and for restoring the base, pavement, and surface to their original condition.
3.Furnishing, installing, and subsequent ly removing sheeting, bracing, and supports needed to install conduit . 714.21 776 4. Labor, materials, equipment, electrical energy, and incidentals required to conduct the performance tests specified in 714.16.D.
5.Reseeding, resodding, and otherwise restoring to their original condition areas that were disturbed during the performance of the work described in this Section.
714.21 Basis of Payment
When the bid schedule indicates payment will be made for Roadway and Structure Lighting on a lump sum basis, such payment is full compensation for all materials, labor, equipment, and incidentals necessary to produce a completely integrated, operative, and finished installation of a Roadway and Structure Lighting System, as shown on the Plans. When the bid schedule contains items for various elements of Roadway and Structure Lighting, the Department will make payment as follows:
A.Conduit
1.Encased Conduit . The Department will pay for Encased Conduit at the contract unit price per linear foot, complete in place, for each kind, number, and size installed as indicated . Such payment is full compensation for all excavation, sheeting when required, backfilling, disposal of excess or unsuitable material, furnishi ng and placing or installing all materials and accessories, including grounding materials, concrete, and reinforcement when specified, all bends, joints, fittings and appurtenances, and installing the encased conduit complete.
2.Direct Burial Conduit . The Department will pay for Direct Burial Conduit of the kind, number, and size specified at the contract unit price per linear foot, complete in place . Such payment is full compensation for all excavation, sheeting when required, backfilling, jacking of condu it, disposal of excess or unsuitable material, furnishing and placing or installing all materials and accessories, including grounding materials, bedding materials when required, all bends, joints, fittings and appurtenances, and installing the conduit com plete.
3.Conduit (Structures) . The Department will pay for Conduit (Structures) of the kind and size specified at the contract unit price per linear foot, complete in place . Such payment is full 714.21 777 compensation for furnishing and installing all materials, inc luding conduits, hangers, expansion fittings, grounding materials, and associated hardware and accessories, and installing the conduit complete.
B.Pull Boxes The Department will pay for Pull Boxes at the unit price per each, complete in place. Such payment is full compensation for furnishing and installing or constructing pull boxes and for all excavation, backfilling, and other work connected therewith.
C.Cable The Department will pay for Cable of the type, and number and size of conductors, as specified, at the contract unit price per linear foot, complete in place. Such payment is full compensation for furnishing and installing the cable and grounding materials, making splices, joints and connections, and for trenching, furnishing, and placing cushion and backfill material, and disposing of excess or unsuitable excavated material.
D.Preassembled Cable in Duct Preassembled Cable in Duct of the kind and size specified will be paid for at the contract unit price per linear foot, complete in place. Such payment i s full compensation for furnishing and installing the cable duct, grounding materials, making splices and connections, and for trenching, furnishing, and placing cushion and backfill material, and disposing of excess or unsuitable excavated material.
E.Light Standards The Department will pay for Light Standards of the type specified at the contract unit price per each, complete in place. Such payment is full compensation for furnishing and installing the complete light standards, including the foundation, st andard, bracket arm or arms, associated hardware and wiring, grounding materials, excavation, backfilling materials, and backfilling. The Department will measure foundations for high mast towers separately. 714.21 778 F. Luminaires The Department will pay for Luminaire s of the size and type specified at the contract unit price per each, regardless of their classifications (i.e. LED, HID), complete in place. Such payment is full compensation for furnishing and installing the complete luminaire, including the ballast(s), lamp(s), glare shields where required, and associated hardware and wiring.
G.Overhead Conductors The Department will pay for Overhead Conductors of the gauge, type, and kind specified at the contract unit price per linear foot, complete in place.
H.Cable Markers The Department will pay for Cable Markers of the design specified at the contract unit price per each, complete in place. Such payment is full compensation for furnishing and installing the marker complete, including the excavation, backfilling, a nd removal and disposal of excess or unsuitable excavated materials.
I.Control Center The Department will pay for the Control Center at the contract unit price per lump sum, complete in place. Such payment is full compensation for furnishing and installing all equipment and materials, including service pole(s) when specified, and photoelectric relays, relay cabinets, multiple relays, lightning arrestors, fuse cutouts, and all other equipment, materials, associated hardware, and accessories, as shown on the P lans. Payment for the Control Center is full compensation for furnishing and installing all electrical supply facilities from the delivery point for electrical energy, as shown on the Plans, to the control center.
J.Class A Concrete The Department will pay for Class A Concrete, measured as specified in
714.20 J, at the contract unit price per cubic yard, complete in place.
714.21 779 K. Navigational Lighting and Overhead Structure Lighting The Department will pay for Navigational Lighting and Overhead Structure Lighting by the lump sum complete in place including all materials and labor. 715.01 780 SECTION 715 – ASPHALTIC CONCRETE CURB (HOT MIX)
715.01 Description ................................ ................................ ................... 780
715.02 Materials ................................ ................................ ...................... 780
715.03 Composition of Mixture ................................ ............................... 780
715.04 Equipment ................................ ................................ .................... 781
715.05 Limitations ................................ ................................ ................... 782
715.06 Preparing the Curb Foundation ................................ .................... 782
715.07 Preparing the Mixture ................................ ................................ .. 782
715.08 Hauling and Placing Mixture ................................ ....................... 782
715.09 Curing and Protection ................................ ................................ .. 783
715.10 Method of Measurement ................................ .............................. 783
715.11 Basis of Payment ................................ ................................ .......... 783
DESCRIPTION
715.01 Description
This work consists of constructing an asphaltic concrete curb composed of a mixture o f coarse aggregate, fine aggregate, mineral filler (if specified or required), and asphalt cement, on a prepared foundation. MATERIALS
715.02 Materials
Provide materials meeting 411.02, except that commercially available stabilizing material may be added with the Engineer’s approval.
715.03 Composition of Mixture
The composition of the mixture shall conform to the requirements of 411.03 with the following additions and revisions:
Source: Tennessee Standard Specifications for Road and Bridge Construction, 2021 Edition. Pages 765–788 of 1,072.