Roadway Lighting Spec.docx

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FIXED PRICE ON-CALL TRAFFIC SIGNAL
Solicitation number
5400018529
Issued by
Richland County, South Carolina

About this file

This Supplemental Specifications document for Roadway Lighting pertains to the South Carolina Department of Transportation (SCDOT) and establishes comprehensive technical and construction requirements for roadway lighting installation projects. The scope of work encompasses the furnishing and installation of complete electrical services, including service entrance equipment, grounding systems, branch circuit wiring, lighting fixtures, poles, and foundations. The contractor is responsible for all supervision, labor, materials, tools, and equipment necessary to complete the work in a neat and workmanlike manner. Specific deliverables include the installation of aluminum light standards (35-foot heights), NEMA 4X stainless steel enclosures for lighting systems, photocells, and ground rods with associated copper wire and clamps. Work must comply with the South Carolina Standard Specifications for Highway Construction, Standard Drawings for Road Construction, MUTCD, AASHTO guidelines, NEC codes, and all applicable local codes and regulations. The contractor is required to conduct field visits prior to accepting work, coordinate with utilities and underground location services, apply for and pay all required permits and inspections, and maintain as-built drawings documenting all changes and final locations of equipment throughout the project duration.

Payment for troubleshooting and repair services is provided on an hourly rate basis and constitutes full compensation for diagnostic work, load determination coordination with utility providers, component specification, conductor and conduit installation, required testing and inspections, and all associated labor and materials. All materials must conform to current editions of NFPA-70, ANSI standards, NEMA specifications, and Underwriters Laboratories certifications, with specific requirements for cable types (UL-83 compliant), conduit (PVC Schedule 80 or galvanized rigid), luminaires (Holophane Mongoose Series 250-watt high pressure sodium for roadway or HMST Series 1000-watt for high mast applications), and control enclosures. The contractor must include at least one certified journeyman electrician with IMSA Roadway Lighting Level 1 Certification for every three crew members. All work is subject to a six-month guarantee period from acceptance, with the contractor responsible for prompt repair or replacement of any deficiencies without additional compensation. The Engineer reserves final approval authority over all material substitutions, work methodologies, equipment locations, and acceptance testing to ensure system conformance to specifications and lighting design standards.

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SUPPLEMENTAL SPECIFICATIONS- ROADWAY LIGHTING

1. GENERAL REQUIREMENTS

All work involved in this contract shall be in accordance with the following publications:

· The South Carolina “Standard Specifications for Highway Construction”, (latest edition) – referred to as the Standard Specifications

· The South Carolina “Standard Drawings for Road Construction”, (latest edition) – referred to as the Standard Drawings

· The Supplemental Specifications for Roadway Lighting dated September 17, 2009

· The “Manual on Uniform Traffic Control Devices”, (latest edition) – referred to as the MUTCD

· AASHTO Roadway Lighting Design Guide (latest edition)

· AASHTO Standard Specifications for Structural Supports for Highway Sign Luminaries and Traffic Signals (latest edition)

· National Cooperative Highway Research Program Report 350

· NFPA-70 National Electrical Code, latest edition

· ANSI C2 National Electrical Safety Code, latest edition

· Any Local Codes or Requirements, the Plans and these Supplemental Specifications-Roadway Lighting

Scope of Work: Furnish all necessary supervision, labor, material, tools and equipment, including materials and equipment not specifically mentioned but necessary to complete the work in a neat, correct, and workmanlike manner, to include:

1. Electrical services, complete to the point of connection with the utility company's facilities.

2. Service entrance equipment, including control panels.

3. Complete grounding system for lighting and equipment, including grounding conductors, ground rods, and grounding connections.

4. Complete branch circuit wiring system for lighting and equipment, including conduit, trenching and backfill, jacking and boring, concrete encasement, pull boxes, and wiring.

5. Lighting fixtures, poles and foundations for roadway lighting.

Existing Conditions: The Contractor will be held responsible for having visited the site and having familiarized himself with the existing conditions prior to accepting the work order. No adjustment in the contract unit prices will be allowed for field conditions with which the Contractor did not appraise during his field visit, unless mutually agreed upon by SCDOT and Contractor.

The Contractor shall be responsible for consulting with the various utilities and local underground utility location services to determine the exact locations of utilities and will bear all costs thereof. Any damages to existing underground utilities caused by the Contractor's workmen or subcontractors will be repaired by the owner of the damaged utility and paid for by the Contractor.

Coordination: All work under this Section shall be coordinated with other trades to insure proper location of outlets and equipment connections, and to minimize conflicts with structural members, piping, grading, etc. Conflicts between equipment and/or material locations shall be resolved as directed by the Engineer at no additional cost to the Department.

Utilities: The service locations, arrangement and metering for electrical service entrances shall be coordinated in detail with appropriate power company. All provisions necessary for the services shall be included, unless otherwise indicated.

Codes and Permits: Installation and materials shall be in accordance with the current editions of NFPA-70 National Electrical Code, ANSI C2 National Electrical Safety Code, and all local codes. The Contractor shall apply and pay for all permits and inspection required by local and state governments for this construction.

Drawings: The original drawings shall be provided by SCDOT.

As-Built Drawings: The Contractor shall maintain one set of clean blueprints for "As-Built" drawings. All changes, revisions, or modifications to the project shall be recorded daily on these drawings as well as final locations of conduits, pull boxes, luminaires, etc. with red-line pencil. Upon completion of the project, these red-line drawings shall be turned over to the Engineer for preparation of final "As Built" drawings. The drawings shall include:I

· Final locations of service panels, meters, etc.

· Final routing of conduit runs

· Final locations of light poles

· Final locations of junction boxes

· Final locations and number of jacked and bored conduits

Guarantee: All materials and labor furnished under this Section of the specifications shall be guaranteed by the Contractor to be free from defects for a period of six months from the date of acceptance. The Contractor shall repair or replace any deficiencies reported in the guarantee period promptly after notification, without any additional compensation from the Owner.

Submittals and Approvals: Contractor shall submit three (3) sets of shop drawings and equipment specifications to the District Electrical Supervisor(DES) for approval on the following materials:

1) Control Panels, including all devices and Equipment.

2) Lighting Fixtures (Luminaires), Poles, Lowering Systems, Lamps, and Ballasts.

3) Wire and Cable.

4) Raceways and Fittings.

5) Pull boxes, Pull Boxes, and Junction Boxes.

2. MATERIALS

General: Electrical materials shall conform to all requirements in the current edition of the NFPA70, “National Electrical Code” (NEC). Electrical materials shall also conform to the standards of the American national Standards Institute (ANSI), the National Electrical Manufacturers Association (NEMA), and the Underwriters Laboratories, Inc. (UL, in every case where a standard has been established. All materials shall be listed by one or more of these organizations. The mark of the listing organization shall appear on electrical material and equipment. Units of any one item (such as poles luminaires, lamps, control devices, enclosures, circuit breakers, etc.) shall be made by the same manufacturer.

Substitutions: Specific reference in the specifications to any article, device, product, material, fixture, form or type of construction, etc., by name, make or catalog number, with or without the words "or equal" shall be interpreted as establishing a standard of quality and shall not be construed as limiting competition. The Contractor may, at his option, propose for consideration any article, device, product, material, fixture, form or type of construction, which in his opinion is equal to that herein named.

Requests for written approval to substitute materials or equipment to those specified shall be submitted for approval to the DES prior to installation. Requests shall be accompanied by samples, descriptive literature, and engineering information, as necessary too fully identify and appraise the product. No changes in the pricing will be considered when requests are not approved. If the item is found to be equal, the DES will provide an approval memo indicating such.

Cable: Underground cable for low voltage parallel circuits shall conform to the requirements of Underwriter’s Laboratories UL-83 for copper conductor with Type RHH-RHW-UgE, 600 volt, 75 C, cross linked polyethylene insulation.

All cable shall be 7 or 19 strand in accordance with ASTM B8. For power cable, conductor size shall not be smaller than No. 8 AWG. Control cable conductor size shall not be less than No. 14 AWG. These limits on conductor sizes shall not apply to leads furnished by manufacturers on fixtures and equipment.

Cable type, size, number of conductors, strand and service voltage shall be determined by the Contractor.

Cable Connections: In-line connections for roadway lighting circuits which are located in the base of each pole shall be fused molded rubber connector kits, Elastimoid Style 82S, or approved equal of Bussman or Gould. One kit shall be used for each conductor.

Fuses shall be dual element, current limiting type rated 600 volt and shall conform to the requirements of UL 168.

Plastic Conduit and Fittings: Plastic conduit shall be sunlight resistant polyvinyl chloride (PVC), SCHEDULE 80, meeting the requirements of National Electrical Manufacturing Association (NEMA) Specification TC-2 and Underwriter Laboratory (UL) Standard UL-514, and/or ASTM-01784. Fittings shall meet NEMA TC-3 and UL-514. No half or quarter size conduit shall be used. Conduit sizes shall be as follows: 1 inch, 2 inch, 3 inch and so on.

Galvanized Rigid Conduit and Fittings: Hot-dipped galvanized conduit shall be used for all exposed conduit runs. Galvanized rigid conduit shall conform to the requirements of Federal Specification WW-C-581, American Standards Association Specification USAS C80.1-1996 and Underwriter's Laboratories UL 6, with full weight screwed fittings. Bushings for conduits 1.5" and larger shall be grounding type with insulated throat.

Expansion fittings shall be provided in conduit systems at all structural expansion joints. Expansion fittings shall be linear sleeve type, constructed from conduit sleeves and reducing fittings. A braided copper grounding jumper shall be provided with each expansion fitting. Expansion fittings shall provide for 8 inches maximum movement. Fittings shall be 0-Z type EXPB, or equal of Crouse Hinds, Appleton, Killark or Spring City.

HDPE Rolled Conduit: Underground conductors may be installed in HDPE rolled conduit, plowed or directional bored in. The conduit shall be a minimum of schedule 80 or SDR 11 HDPE and shall be red in color. HDPE shall not be used where the conduit is exposed. If splicing of the HDPE conduit is required, comfit fittings shall be used.

Pull boxes: Pull boxes shall be Armorcast A6001640TAPCX28, 17"x30"x28", or approved equal. All pull boxes shall have SCDOT ELECTRIC logo cast on the lid. There shall be a red passive marking ball, operating at a frequency of 169.8KHZ installed in each pull box. The red passive marker ball shall be compatible with a Metro Mark passive marker locater 760 Dx or approved equal.

Marking Posts: Marking Posts shall be round dome type, ProMark PM303 or approved equal, red in color with the word "ELECTRIC" and be marked with appropriate maintenance offices and phone numbers

Concrete and Reinforcement: Concrete for light pole foundations and concrete encasement of conduits shall conform to the requirements of ASTM C-387 and shall be rated for 4000 psi minimum compressive strength at 28 days.

Reinforcing steel shall be deformed steel reinforcement bars conforming to the requirements of ASTM A-615, Grade 60. Anchor bolts shall be provided as recommended by the pole manufacturer. Anchor bolts shall be in accordance with ASTM A-687 and anchor bolt nuts shall be in accordance with ASTM A-563. Bolts and nuts shall be galvanized in accordance with ASTM A-123.

Roadway Luminaires: . Luminaires shall be Holophane Mongoose Series or approved equal meeting the following requirements. Roadway luminaires shall be 250 watt, high pressure sodium. Luminaires shall be top, vertical tenon mounted, directional with adjustable tilt from 0 to 18 degrees, complete, including integral ballast, reflector, refractor, and housing with all stainless steel hardware. All mating surfaces shall be gasketed, and secured with standard threaded machine screws. Luminaires shall be equipped with a narrow roadway prismatic refractor Luminaires shall have light gray painted finish, terminal block and NEMA decal, 6 foot pigtail and Sylvania 250 watt clear Mogul base "0" TCLP compliant lamp.

Ballasts shall be 480 volt high power factor autoregulator type mounted internally in the fixture. The HPS starter shall be totally encapsulated with a material that electrically and thermally insulates all components from lamp and ballast heat. The starter shall sense an inoperative lamp and shut down automatically to prevent continuous pulsing and damage to itself and the ballast. Lamp leads shall be provided with quick disconnect so that ballast assembly is readily removed.

High Mast Luminaires: Luminaires shall be Holophane HMST Series, or approved equal. High mast luminaires shall be 1000 watt, high pressure sodium. Luminaires shall be high mast type, with vertical lamp, cast aluminum ballast housing, Alzak aluminum reflector, heavy duty glass refractor assembly, and all stainless steel hardware. All mating surfaces shall be gasketed. Luminaires within the interchanges shall be designed with IES Type V, symmetrical light distribution. Luminaires along the mainline shall be designed with IES Type Ill, asymmetrical light distribution. Luminaires shall have light gray painted finish.

Ballasts shall be 480 volt high power factor autoregulator type. The HPS starter shall be totally encapsulated with a material that electrically and thermally insulates all components from lamp and ballast heat. The starter shall sense an inoperative lamp and shut down automatically to prevent continuous pulsing and damage to itself and the ballast. Lamp leads shall be provided with quick disconnect so that ballast assembly is readily removed.

Light Poles (General): Equipment and materials covered by other referenced specifications shall be subject to acceptance through the manufacturer's certification of compliance with the applicable specifications.

Poles shall be as specified on the drawings and in the proposal and shall be manufactured in accordance with AASHTO "Standard Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals". Poles shall be rated for 90 MPH wind load using effective projected area of the proposed luminaire(s) and Luminaire mounting bracket(s) for the wind load.

Roadway Lighting Poles: Poles and accessories shall be spun brushed aluminum.

Each pole shall be provided with a top mounted vertical mounting tenon. Aluminum poles shall be provided with a cast aluminum base welded to the lower end. After bonding or welding, the base shall develop the full strength of the adjacent shaft to resist bending action. Poles shall be 35 feet or as specified in the plans.

Removable anchor bolt covers shall be provided with each pole. Covers shall be secured to the base plate with tamperproof, stainless steel screws.

Anchor bolts shall be provided as shown on the shop drawings for the foundation, meeting the requirements of ASTM F1554, Grade 55 (Bolts), ASTM A563 (Nuts). ASTM identification and grade shall be provided with pole documentation. Bolts and nuts shall be galvanized in accordance with ASTM A123

Cabinet: Components for control of lighting shall be mounted inside a weatherproof NEMA 3R stainless steel pedestal type enclosure, as manufactured by Milbank, Hoffman Engineering, GE, Square-D, or Austin Berryhill. Enclosure must include the meter base within the single enclosed pedestal. The utility metering must be isolated, lockable, and sealable. Meter socket shall conform to utility requirements and must be viewable from the exterior via lockable window panel (unless conflicts with utility requirement). Pedestal pad anchorage shall not be visible from outside.

Panel shall be equipped with 3-point latching door with provision for padlocking.

Panel shall be equipped with an approved 650 volt, three pole lightning surge protector, as manufactured by General Electric, Square D, Deltrol, or approved equal.

3. CONSTRUCTION METHODS

General Requirements: All work shall be installed in a neat and orderly manner. At least one of every three persons in each work crew shall be a certified journeyman electrician, they shall be present and have involvement with all work required for installation and operation testing of electrical materials and equipment. They shall also possess at a minimum an IMSA Roadway Lighting Level 1 Certification. Devices, cabinets, covers, fixtures, exposed raceways, etc., shall be aligned plumb and parallel or perpendicular to the curb lines, and or structure or ground lines. Wiring in panel boards and cabinets shall be neatly looped and laced with nylon cable ties, and not wadded. Wires shall be identified at each terminal or junction with adhesive backed permanent plastic wire markers. The Owner reserves the right to require repair or replacement of defective or inferior workmanship and material without additional compensation to the Contractor.

Supports: Conduits, boxes, cabinets, enclosures, lighting fixtures, poles, etc., shall be securely supported by structural members or structural walls at intervals required by the NEC or as recommended by the manufacturer.

Cutting and Patching: The electrical contractor shall perform all boring, drilling, and cutting of sidewalks and roadways as required to install and support his raceways and equipment. Provide finished patching to match existing surfaces and conditions.

Trenching and Backfill: The electrical contractor shall perform all excavation, trenching, and backfilling necessary to install his work. Trenches shall be run at 36 inches minimum depth from finished grades. Contact all underground utilities (electric, telephone, cable TV, gas, water, sewer) and establish locations of underground utilities prior to digging. Damages to underground utilities will be repaired by the Owner of the line, and the Contractor responsible for the damage will pay all costs of repairs. After completion of backfilling operations, restore the disturbed areas to their original condition by leveling, raking, seeding and mulching.

The Contractor shall excavate all cable trenches to a width not less than 6 inches. The trench shall be deepened or widened, where more than two conduits are to be installed in the same trench. Unless otherwise specified in the plans, all conduits in the same location and running in the same general direction shall be installed in the same trench.

When rock excavation is encountered, the rock shall be removed to a depth of at least 3 inches below the required trench depth and it shall be replaced with bedding material of earth or sand containing no mineral aggregate particles that would be retained on a %-inch sieve. The Contractor shall ascertain the type of soil or rock to be excavated before bidding.

After the conduit has been installed, the trench shall be backfilled 3 inches deep, loose measurement, and shall be either earth or sand containing no mineral aggregate particles that would be retained on a Y.,-inch sieve. This layer shall not be compacted. The second layer shall be 5 inches deep, loose measurement, and shall contain no particles that would be retained on a 1-inch sieve. The remainder of the backfill shall be excavated or imported mineral and shall not contain stone or aggregate larger than 4 inches maximum diameter. The third and subsequent layers of the backfill shall not exceed 8 inches in maximum depth, loose measurement.

The second, and subsequent layers shall be thoroughly tamped and compacted to at least the density of the adjacent undisturbed soil, and to the satisfaction of the engineer. If necessary to obtain the desired compaction, the backfill material shall be moistened or aerated as required.

Trenches shall not be excessively wet and shall not contain pools of water during backfilling operations. The trench shall be completely backfilled and tamped level with the adjacent surface, except that when sod is to be placed over the trench, the backfilling shall be stopped at a depth equal to the thickness of the sod to be used, with proper allowance for settlement. Any excess excavated material shall be removed and disposed of in accordance with instructions issued by the engineer.

Bored and Jacked Conduit (Pushing): Where necessary to cross existing roadway and steel galvanized conduit is to be used, the contractor shall bore under the roadway and the conduit jacked into the bore. The method of boring and jacking will be approved by the Engineer prior to beginning work. Maximum conduit size is limited to four (4) inches.

Bored and Jacked Conduit (Pulled): When HDPE conduit is used under existing roadway, the contractor shall bore under the roadway and the conduit pulled through the bore. The method of boring and pulling the conduit will be approved by the DESprior to beginning work. Maximum conduit size is limited to four (4) inches.

Restoration: Where sod has been removed, it shall be replaced as soon as possible after the backfilling is completed. All areas disturbed by the trenching, storing of dirt, cable laying, pad construction, and other work shall be restored to its original condition. The restoration shall include any necessary topsoiling, fertilizing, liming, seeding, sodding, sprigging or mulching. All such work shall be performed in accordance with Section 810 of the Standard Specifications. The Contractor shall be held responsible for maintaining all disturbed surfaces and replacements until final acceptance.

Marking Posts: Marking Posts shall be placed at 500' intervals along conduit runs and everywhere the conduit makes a turn. All junction boxes should be marked as well as the ends of jacked and bored conduits under the roadway. In addition, red marking tapes should be placed in the trench.

Grounding: Entire system shall be grounded and bonded in accordance with the requirements of the National Electrical Code.

Electrical service shall be grounded to driven ground rods as required by the National Electrical Code. Grounding point shall be inside the Main service equipment.

Each raceway shall be bonded to every cabinet, pull box, etc., to which it is connected by grounding bushings and bonding jumpers sized per NEG Table 250-95, even when separate grounding conductors are specified. An insulated stranded copper wire, No. 8 AWG minimum size, shall be installed for grounding in all circuit runs. The grounding wire shall be securely attached to each light base.

Conduit: The Contractor shall install direct burial conduits as necessary to provide electrical service to the lighting. The Engineer shall approve specific locations as the work progresses. Conduits shall be sized to accommodate the size and number of conductors by the contractor.

The Contractor shall mandrel each conduit. An iron-shod mandrel, not more than ¼ inch smaller than the bore of the conduit shall be pushed through each conduit by means of jointed conduit rods. The mandrel shall have a leather or rubber gasket slightly larger than the conduit diameter.

All spare conduits shall be provided with a No. 10 gage galvanized iron or steel drag wire or equivalent plastic cord with 200 lb. Tensile strength for pulling the permanent wiring. Sufficient length shall be left in manholes or pull boxes to bend the drag wire back to prevent it from slipping back into the conduit. Where spare conduits are installed the open ends shall be plugged with removable tapered plugs, designed by the manufacturers.

All conduits shall be securely fastened in place during construction and progress of the work and shall be plugged to prevent seepage of grout, water, or dirt. Any conduit section having a defective joint shall not be installed.

Pull Boxes: Pull boxes shall be placed at intervals of 250' along conduit runs and at turns in the runs, at all junction boxes and at the ends of jacked or bored conduit. Final locations of the pull boxes shall be staked by the contractor and approved by the engineer prior to construction. Pull boxes shall be placed in excavated holes over pea gravel or crushed stone for drainage. The top of the pull box shall lie flush inside the pull box. The top of the pull box shall be placed 1-inch above the finished grade, then 4 inches of concrete backfill placed on all sides of the pull box.

Each pull box shall be located using the Global Positioning System (GPS) with the coordinates shown on the as built plans.

Wiring: The Contractor shall install cable at the approximate locations indicated in the lighting layout plans. The contractor and Engineer shall determine specific locations.

Cable connections will be permitted only at the light base locations for connecting the undergound cable to the leads of the individual luminaires. Splices will be permitted for cables in pull boxes and manholes, where approved by the engineer or shown in the plans.

Field cable splices and taps shall be made with copper sleeve compression type connectors only. Compression tool shall be the type which will release only after full compression to sleeve is made. After the compression is complete the splice shall be insulated with two wraps, half lapped, of insulating rubber tape, Scotch No. 33, or equal, shall be applied over the rubber tape. Tape shall be applied to at least 3 inches beyond the sleeve on each conductor entering the splice. All sharp points and edges shall be padded, and all voids filled with rubber and plastic tape. The tape shall not be stretched excessively in a manner to cause creeping. Where approved by the engineer, a heat shrinkable, self-sealing, splice insulator kit may be used in lieu of the taping above for splices in pole bases and in structure boxes (above ground). All spliced joints shall be watertight.

Cable splices in pull boxes shall be made with pressed sleeve connector or equivalent, and a protective plastic case installed around the cable. Ends of the cases shall be sealed with plastic tape, following which the case shall be poured full of a 2-part, field mixed hardening insulation compound, in accordance with the manufacturer's instructions. Splices shall be watertight and capable of continuous submersion in water.

Installation of Wire in Conduit: The maximum number and voltage ratings of cables installed in each single conduit, and the current-carrying capacity of each cable shall be in accordance with the latest National Electric Code, or the local agency having jurisdiction.

Ensure that conductors for a circuit (ie. Supply and return) are routed together when passing through conductive material (ex. Metal conduit).

The Contractor shall make no connections or joints of any kind in cables installed in conduits.

The Contractor shall make no connections or joints of any kind in cables installed in conduits.

The Contractor shall make sure that the conduit is open, continuous, and clear of debris before installing cable. The cable shall be installed in a manner to prevent harmful stretching of the conductor, injury to the insulation, or damage to the outer protective covering. The ends of all cables shall be sealed with moisture seal tape before pulling into the conduit and it shall be left sealed until connections are made. Where more than one cable is to be installed in a conduit under the same contract, all cable shall be pulled in the conduit at the same time. The pulling of a cable through conduits may be accomplished by hand winch or power winch with the use of cable grips or pulling eyes. Pulling tensions should be governed by recommended standard practices for straight pulls or bends. A lubricant recommended for the type of cable being installed shall be used where pulling lubricant is required. Upon completion of installation of wiring in conduits, ends of conduit shall be sealed with untreated oakum, or other sealer as approved by the engineer. Conduit markers temporarily removed for excavations shall be replaced as required.

Placing Foundations: The poles shall be installed at the approximate locations indicated in the plans. The Contractor shall stake out the exact locations and obtain approval from the Engineer prior to commencing construction. High mast foundations shall not be installed within 46' of the roadway when there is no shielding available.

Foundation: Stake each pole location and obtain approval from Engineer prior to commencing work. Excavate holes for pole foundations in undisturbed earth to the dimensions indicated on the accepted shop drawings. The Contractor shall perform a soil analysis after compaction at each pole location to verify footing designs and to submit to the engineer a shop drawing of the footing and design calculations, certified by a professional structural engineer registered in South Carolina.

Erect foundation reinforcement, anchor bolts, and conduits as indicated on the drawings and secure in place for the placement of concrete. Insure that all reinforcement and anchor bolts have 3-inch minimum clearance from the outside edge of the concrete. Insure that anchor bolts extend high enough to permit double nuts and bearing plate in accordance with the manufacturer's recommendations. Place concrete in excavated hole against undisturbed earth. Vibrate concrete per ACI recommendations to insure there are no voids in the foundation. Allow 28 days for curing prior to placing poles on foundation.

Poles: Assemble poles, luminaires, wiring, and other components and allow for observation by Engineer prior to erecting pole. Place and adjust leveling nuts and bearing place so that the pole will have a level-bearing surface to rest on. Erect pole in accordance with manufacturer's recommendation, using lifting equipment which will not damage the finish surfaces of the poles. Use transit to check and level pole. Tension nuts per the manufacturer's instruction and Section 709 of the Standard Specifications. Install bolt covers with stainless steel security screws over each anchor bolt.

Do not place grout under the base plate between the base plate and the top of the footing.

Luminaires: Luminaires shall be installed, leveled, and aimed in accordance with the recommendations of the manufacturer and as indicated on the drawings. Contractor shall take particular care to prevent spill light and glare. Wiring within the poles shall be supported at the top of the pole with a cable clamp or attachment clip to prevent tension on the cable splices or connections to the luminaires. Luminaires shall be connected to balance the loading between all phases on. the supply circuit. Luminaires shall be thoroughly cleaned after completion of installation, and all aiming devices and clamps securely tightened.

Ground Rod Testing: PRIOR TO connecting ground rods to grounding conductor, each ground rod shall be tested for earth resistance. Test method shall be Biddle fall of potential method, or approved equivalent method. Notify Engineer seven (7) calendar days prior to performing testing. Tests shall not be performed within seven (7) days of measurable rainfall (greater than 0.01 inches). Should the resistance of any ground rod exceed 25 ohms, notify Engineer for further action.

Furnish to the Engineer a written certification of the testing, listing each ground rod as identified in the Drawings, and the resulting value of resistance, and any further corrective action taken.

Completion of Work: Poles shall be erected, leveled, and connected to power and control systems. Repair and/or refinish any damaged surfaces. Test lowering system and latching mechanism at least three times for each pole. Ensure that all equipment and luminaires are operational. Instruct Owner's maintenance personnel in the operation and maintenance of the system.

SCDOT at their discretion may perform an as-built photometric analysis to ensure system conformance to desired lighting

Acceptance Tests: Upon completion of work, the entire system shall be completely operational and tested to conform to these specifications and drawings, and inspected and approved by the Engineer. All defects in workmanship and material shall be immediately corrected by the Contractor without additional compensation to the Contractor.

Upon completion of all installations and prior to final acceptance by the Owner, remove all debris from the site. Clean and touch up paint on fixture lenses and trims, cabinets, enclosures, cover plates, etc.

Measurement

EA
FURNISH & INSTALL SINGLE ALUMINUM LIGHT STANDARD – 35’- BREAKAWAY- W/O FDN (SGL.LIGHT STD.35'HT.AL.POLE-INCL TOP TENON MT )
EA
INSTALL 35’ SPUN BRUSHED ALUMINUM POLE W/ LUMINAIRE ON EXISTING FDN
EA
FURNISH & INSTALL NEMA 4X STAINLESS STEEL ENCLOSURE FOR LIGHTING SYSTEM (W/O FDN)
HR
TROUBLESHOOT/REPAIR LIGHTING SYSTEM
EA
FURNISH & INSTALL PHOTOCELL
EA
INSTALL PHOTOCELL
LF
FURNISH & INSTALL GROUND ROD, INC COPPER WIRE & CLAMP

Payment for ‘Troubleshoot/Repair Lighting System’ shall be full compensation for troubleshooting and/or repair of the roadway lighting systems on an hourly rate, not including equipment. This includes, but is not limited to, determining load requirements and coordinating with the utility provider, determining needed electrical components and panels, determining and providing adequate conductors and conduit, installing jacked and bored conduit where required, providing all required tests and checks, providing all needed equipment, tools, materials and labor necessary to complete the work to the satisfaction of the DES.

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