8-20Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and

Electrical

8-20.1 Description

This Work consists of furnishing, installing and field testing all materials and equipment necessary to complete in place, fully functional system(s) of any of the following types, including modifications to an existing system, partial removal of an existing system, or complete removal of an existing system, all in accordance with approved methods, the Plans, the Special Provisions, and these Specifications:

8-20.1(1) Regulations and Code

All electrical equipment shall conform to the standards of the National Electrical Manufacturers Association (NEMA), Electric Utility Service Equipment Requirements Committee (EUSERC), and California Department of Transportation document entitled Transportation Electrical Equipment Specifications (TEES). Traffic signal control equipment shall conform to the Contract and these Standard Specifications : EIA Electronic Industries Alliance, IEEE Institute of Electrical and Electronics Engineers, the American Society for Testing and Materials (ASTM), the American Association of State Highway and Transportation Officials (AASHTO), the American National Standards Institute (ANSI), whichever is applicable, and to other codes listed herein. In addition to the requirements of these Specifications, the Plans, and the Special Provisions, all material and Work shall conform to the requirements of the National Electrical Code, hereinafter referred to as the Code, and all WACs and local ordinances, that apply. Wherever reference is made in these Specifications or in the Special Provisions to the Code, the rules, or the standards mentioned above, the reference shall be construed to mean the code, rule, or standard that is in effect on the Bid advertisement date. In accordance with RCW 39.06.010 , the Contractor need not be registered or licensed if the Contractor has been prequalified as required by RCW 47.28.070 . Safe wiring labels normally required by the Department of Labor and Industries will not be required on electrical Work within the Rights-of-Way of Contracting Agency Highways as allowed in RCW 19.28.141 . Persons performing electrical Work shall be certified in accordance with and supervised as required by RCW 19.28.161 . Proof of certification shall be worn at all times in accordance with WAC 296-46B-942 . Persons failing to meet these certification requirements may not perform any electrical work, and shall stop all active electrical work, until their certification is provided and worn in accordance with this section.

8-20.1(2) Industry Codes and Standards

The following electrical industry codes and standard procedures are listed for reference purposes: Air Movement and Control Association (AMCA), 30 West University Drive, Arlington Heights, IL 60004. American Association of State Highway and Transportation Officials (AASHTO), 444 North Capitol Street NW, Suite 225, Washington, D.C. 20001. American National Standards Institute (ANSI), 70 East 45th Street, New York, NY. M 41-10 Page 8-89 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical 8-20American Society for Testing and Materials (ASTM), 1916 Race Street, Philadelphia, PA. American Wood Protection Association (AWPA), 836 Seventeenth Street, Washington, D.C. Bell Company Research and Evaluation (Bellcore) 31220 La Baya DR, Westlake Village, CA 91362. Edison Electric Institute (EEI), 420 Lexington Avenue, New York, NY. Electronics Industries Alliance (EIA), 101 Pennsylvania Avenue, Washington, D.C. Electric Utility Service Equipment Requirements Committee (EUSERC). Federal Communications Commission (FCC), 445 12th SW, Washington, D.C. 20554. International Municipal Signal Association (IMSA), PO Box 539, 1115 North Main Street, Newark, NY 14513. Institute of Electrical and Electronics Engineers (IEEE), 17th Floor, New York, NY 10016 International Telephony Communications Union (ITU) Place des Nations CH 1211 Geneva 20 Switzerland. Institute of Transportation Engineers (ITE), 2029 K Street, Washington, D.C. 20005. Insulated Power Cable Engineers’ Association (IPCEA), 283 Valley Road, Montclair, NJ. National Electrical Manufacturers’ Association (NEMA), 155 East 44th Street, New York, NY. National Fire Protection Association – National Electrical Code (NEC), 470 Atlantic Avenue, Boston, MA. National Television Standards Committee (NTSC), 445 12th SW, Washington, D.C. 20554. National Transportation Communications for ITS Protocol (NTCIP). Rural Utilities Service (RUS), 1400 Independence Avenue, Washington, D.C. Underwriters’ Laboratories (UL), 207 East Ohio Street, Chicago, IL.

8-20.1(3) Permitting and Inspections

Electrical installations are subject to electrical inspection in accordance with RCW 19.28.101 . Electrical inspections may only be performed by an electrical inspector meeting the requirements of RCW 19.28.321 . Electrical installations will not be accepted until they have been inspected and approved by an electrical inspector as required by this Section. An electrical inspection shall be required for construction of all new electrical systems or alteration to an existing electrical system. Inspections are required prior to energizing all new or altered existing circuit. An inspection is required even if there is no new electrical service or new electrical meter being installed in the Contract. Installations within WSDOT right of way are subject to inspection by a WSDOT certified electrical inspector as allowed by RCW 19.28.141 . A separate permit is not required for electrical installations within WSDOT right of way. Additional inspections may be required at the discretion of the Engineer. Installations outside of WSDOT right of way are subject to permitting and inspection in accordance with RCW 19-28.101 by the Washington State Department of Labor and Industries (L&I) or a local jurisdiction approved for that location by L&I. Approved local jurisdictions and their contacts can be found on the L&I website at https:/ /lni.wa.gov/ licensing-permits/electrical/electrical-permits-fees-and-inspections/city-electrical- permits-inspections . Page 8-90 M 41-10

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical8-20.2 Materials

Materials shall meet the requirements of Section 9-29 . Unless otherwise indicated in the Plans or specified in the Special Provisions, all materials shall be new. Where existing systems are to be modified, the existing material shall be incorporated in the revised system, salvaged, or abandoned as specified in the Contract documents, or as ordered by the Engineer.

8-20.2(1) Equipment List and Drawings

Within 20 days following execution of the Contract, the Contractor shall submit to the Engineer a completed “Request for Approval of Material” that describes the material proposed for use to fulfill the Plans and Specifications. If required to do so, the Contractor shall submit Type 2 Working Drawings consisting of supplemental data, sample articles, or both, of the material proposed for use. Supplemental data includes such items as catalog cuts, product Specifications, shop drawings or wiring diagrams. The Contractor shall submit for approval a Type 3E Working Drawing in accordance with Section 1-05.3 for each of the following types of standards called for on this project:

8-20.3 Construction Requirements

8-20.3(1) General

All Work shall be completed in neat, skilled, and professional manner accordance with the current industry standards. No Work shall be performed on an energized power circuit. Working Drawings for construction lock-out/tag-out procedures shall be accepted prior to the start of Work on M 41-10 Page 8-91 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical 8-20power circuits. Work on energized signal and data circuits shall be kept to the absolute minimum necessary and shall normally be performed with the circuit deenergized. Work shall be so scheduled that each electrical system is operational prior to opening the corresponding section of Roadway to traffic. Existing electrical systems, traffic signal or illumination, or approved temporary replacements, shall be kept in effective operation during the progress of the Work, except when shutdown is permitted to allow for alterations or final removal of the system. Illumination system shutdowns shall not interfere with the regular lighting schedule, unless permitted by the Engineer. The Contractor shall notify the Engineer prior to performing Work on existing systems. Traffic signals shall not be placed in operation for use by the public until all required channelization, pavement markings, illumination, signs, and sign lights are substantially complete and operational unless otherwise allowed by the Engineer. New signal systems may not be turned on any sooner than the next working day following the completion of test number 4 of Section 8-20.3(11) . When field repair of existing conduit, innerduct or outerduct is required, the repair kits shall be installed per manufacturer’s recommendations. Repair kits and each connection point between the repair kit and the existing raceway system shall be sealed to prevent air leakage during future cable installation. All costs incurred by the Contractor for providing effective operation of existing electrical systems shall be included in the associated electrical Bid items.

8-20.3(1)A Maintenance During Construction

The Contractor is responsible for maintenance of all new, existing, and temporary systems included in the work, starting from the first on-site working day and ending upon final acceptance of the system. For existing systems where only part of an existing system is included in the work, the responsibility for maintenance shall be determined between the Contractor and the Engineer as part of the preconstruction conference. Normally, this will be based on whether a majority of the system is included in the work. Maintenance responsibilities for these systems includes the following:

8-20.3(1)B Communication System Repairs

If a portion of an existing communication conduit system is damaged due to the Contractor’s activities, the affected system shall be restored to original condition. Conduit shall be repaired. Communication cables shall be replaced and the communication system shall be made fully operational within 24 hours of being damaged. Page 8-92 M 41-10

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and ElectricalDamaged communication cable shall be replaced between existing termination or splice

points. No additional termination or splice points will be allowed. An existing termination or splice point is defined as a location where all existing fiber strands or twisted pair wires are terminated or spliced at one point. Communication cable shall be defined as either copper twisted pair or fiber optic cables. The Contractor may use temporary splices to restore WSDOT communication systems until the permanent communication cable system is restored. When damage to an existing communication system has occurred, the Contractor shall perform the following in addition to other restoration requirements:

8-20.3(1)C Removal of Embedded Anchors

Where embedded anchors attaching existing electrical, illumination, and traffic signal systems to concrete Structures are specified for removal, they shall be removed a minimum of 1 inch beneath the existing concrete surface. The void left by removal of the embedded anchors shall be coated with epoxy bonding agent and filled with mortar conforming to Section 9-20.4(2) . The epoxy bonding agent shall be Type II, conforming to Section 9-26.1 , with the grade and class as recommended by the epoxy bonding agent manufacturer. The mortar shall consist of cement and fine aggregate mixed in the proportions to match the color of the existing concrete surface as near as practicable.

8-20.3(2) Excavating and Backfilling

The excavations required for the installation of conduit, foundations, poles and other accessories shall be performed in a manner that prevents damage to the streets, sidewalks, and other improvements. The trenches shall not be excavated wider than necessary for the proper installation of the electrical accessories and foundations. Excavating shall not be performed until immediately before installation of conduit and other accessories. The material from the excavation shall be placed where the least interference to vehicular and pedestrian traffic, and to surface drainage, will occur. All surplus excavated material shall be removed and disposed of by the Contractor in accordance with Section 2-03 , or as ordered by the Engineer in accordance with Section 1-04.4 and Section 8-20.3(5)E1. The excavations shall be backfilled in conformance with the requirements of Section 2-09.3(1)E , Structure Excavation. M 41-10 Page 8-93 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical 8-20At the end of each day’s Work and at all other times when construction operations are suspended, all equipment and other obstructions shall be removed from that portion of the Roadway open for use by public traffic. Excavations in the street or Highway shall be performed in such a manner that not more than one traffic lane is restricted in either direction at any time unless otherwise approved by the Engineer.

8-20.3(3) Removing and Replacing Improvements

Improvements such as sidewalks, curbs, gutters, Portland cement concrete and hot mix asphalt pavement, bituminous surfacing, base material, and all other improvements removed, broken, or damaged by the Contractor, shall be replaced or reconstructed with the same kind of materials as found on the Work or with other materials satisfactory to the Engineer. Whenever a part of a square, slab, or section of existing concrete sidewalk, curb, gutter or driveway is broken or damaged, the entire square, slab or section, curb, gutter, driveway shall be removed and the concrete reconstructed as specified above. The outline of all areas to be removed in Portland cement concrete sidewalks and pavements and hot mix asphalt pavements shall be cut to a minimum depth of 3 inches with a saw prior to removing the sidewalk, driveway, slabs and pavement material. The cut for the remainder of the required depth may be made by a method satisfactory to the Engineer. Cuts shall be neat and true with no shatter outside the removal area.

8-20.3(4) Foundations

Foundation concrete shall conform to the requirements for the specified class, be cast- in-place concrete and be constructed in accordance with Sections 6-02.2 and 6-02.3 . Concrete for Type II, III, IV, V, and CCTV signal standards and light standard foundations shall be Class 4000P and does not require air entrainment. Concrete for pedestals and cabinets, Type PPB, PS, I, FB, and RM signal standards and other foundations shall be Class 3000. Concrete placed into an excavation where water is present shall be placed using an approved tremie. If water is not present, the concrete shall be placed such that the free-fall is vertical down the center of the shaft without hitting the sides, the steel reinforcing bars, or the steel reinforcing bar cage bracing. The Section 6-02.3(6) restriction for 5-feet maximum free-fall shall not apply to placement of Class 4000P concrete into a shaft. Steel reinforcing bars for foundations shall conform to Section 9-07 . The bottom of concrete foundations shall rest on firm ground. If the portion of the foundation beneath the existing ground line is formed or cased instead of being cast against the existing soil forming the sides of the excavation, then all gaps between the existing soil and the completed foundation shall be backfilled and compacted in accordance with Section 2-09.3(1)E . Foundations shall be cast in one operation where practicable. The exposed portions shall be formed to present a neat appearance. The top edges of the luminaire foundation, traffic signal standard foundations, electrical service foundations, traffic signal controller cabinets, Transformer cabinets, ITS Standards, and ITS cabinets shall have a ¾-inch chamfer on the top edge of the foundation. Where one or more of the above foundations directly abut each other, no chamfer shall be permitted. Where soil conditions are poor, the Engineer may order the Contractor to extend the foundations shown in the Plans to provide additional depth. Such additional Work will be paid for according to Section 1-04.4 . When slip bases are installed the conduit, anchor bolts, and other obstructions shall terminate at a height below the elevation of the top of the bottom slip plate. The galvanized surfaces of the slip plates, the keeper plate and the luminaire base plate Page 8-94 M 41-10

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electricalshall be smooth, without irregularities, to reduce friction and to prevent slacking of bolt

tension due to flattening of the irregularities. Slip base luminaire foundations shall have a maximum conduit size of 1-inch. Forms shall be true to line and grade. Tops of foundations for posts and standards, except special foundations, shall be finished to ground line or sidewalk grade, unless otherwise noted in the Plans. Forms shall be rigid and securely braced in place. Conduit ends and anchor bolts shall be plumbed and rigidly placed in proper position and to proper height prior to placing concrete and shall be held in place by means of a template until the forms are removed. Anchor bolts shall be installed so that two full threads extend above the top of the top heavy-hex nut, except that slip base anchor bolt extensions shall conform to the specified slip base clearance requirements. Anchor bolts shall be installed plumb, plus or minus 1 degree. Anchor bolts shall be verified at the correct height and plumb in accordance with this Section and Section 8-20.3(13)A before placing concrete. Anchor bolt straps and templates shall not be cut or otherwise modified from the approved shop drawing design. See Section 8-20.3(9) for additional grounding requirements. Plumbing of standards shall be accomplished by adjusting leveling nuts. Shims or other similar devices for plumbing or raking will not be permitted except on power installed hot dipped galvanized steel luminaire foundations. The top heavy-hex nuts of light standards and signal standards shall be tightened in accordance with Section 6-03.3(33) , and as follows:

8-20.3(5) Conduit

8-20.3(5)A General

The ends of all conduit, metallic and nonmetallic, shall be reamed to remove burrs and rough edges. Field cuts shall be made square and true. The ends of unused conduits shall M 41-10 Page 8-95 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical 8-20be capped. When conduit caps are removed, the threaded ends of metal conduit shall be provided with approved conduit bushings and non-metal conduit shall be provided with end bells. Conduits entering open bottom junction boxes shall use sweeps and shall terminate no less than 6 inches and no more than 10 inches from the underside of the box lid. Conduits entering solid bottom boxes and vaults shall enter through knockouts and shall extend no more than 4 inches into the box. The termination point of each conduit is the end of the end bell or ground end bushing. Reducing couplings will not be permitted. Existing conduit in place scheduled for installation of new conductor(s) shall first have all existing conductor(s) removed and a cleaning mandrel shall be pulled through. The existing conduit shall then be prepared subject to the same requirements outlined in this paragraph, for new conduit and innerduct, unless otherwise indicated in the Plans. All new conduit and all innerduct shall be blown clean with compressed air. Then in the presence of the Engineer, an 80 percent sizing mandrel, correctly sized for the raceway, shall be pulled through to ensure that the raceway has not been deformed. This shall be done prior to pulling wire or fiber optic cable and after final assembly is in place. Existing conductor(s) shall be reinstalled unless otherwise indicated in the Plans. Immediately after the sizing mandrel has been pulled through, install an equipment grounding conductor if applicable (see Section 8-20.3(9) ) and all new or existing wire or cable as specified in the Plans. All conduits shall include a pull tape with the equipment grounding conductor. The pull tape shall be attached to the conduit near the end bell or grounded end bushing, or to duct plugs or caps if present, at both ends of the conduit.

8-20.3(5)A1 Fiber Optic Conduit

Where conduit to contain fiber optic cable or conduit identified to contain future fiber optic cable is installed by open trenching, Detectable Underground Warning Tape shall be placed 12-inches above the conduit unless otherwise detailed in the Plans. Detectable Underground Warning Tape shall extend 2-feet into boxes or vaults. Splicing of the tape shall be per the tape manufacturer’s recommended materials and procedures.

8-20.3(5)A2 ITS and Cabinet Outer and Innerduct Conduit

ITS conduit and both ends of conduit runs entering cabinets, with the exception of the ½-inch grounding conduit, shall be sealed with self expanding water proof foam or mechanical plugs; unless otherwise required. At other locations conduit shall be sealed with Duct Seal. Outer-duct conduit with non factory assembled innerduct shall be sealed around the innerduct with self-expanding waterproof foam. Outer-duct conduit with factory assembled innerduct shall be sealed around the innerduct with a multiplex expansion plug. Innerduct containing one cable shall be plugged using an expandable split plug. Innerduct with multiple cables shall be sealed with self-expanding waterproof foam. Duct plugs shall be installed in all unused inner-ducts (those that are specified as empty) at the time of conduit installation. Duct plugs shall be installed in all used inner-ducts (as specified in the Plans), at the time of conduit installation, unless cable pulling for those inner- ducts will commence within 48-hours. Installation shall conform to the manufacturer’s recommendations. Foam sealant shall be installed with the following additional requirements:

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and ElectricalWhere open trenching is allowed and conduit with innerduct is installed, a maximum

of 1000-feet of continuous open trench will be allowed unless otherwise approved by the Engineer.

8-20.3(5)B Conduit Type

Conduit shall be rigid polyvinyl chloride (PVC), high density polyethylene (HDPE), rigid metal (RMC) or liquid-tight flexible metal (LFMC) depending on the application. RMC shall be installed at the following locations:

8-20.3(5)B1 Rigid Metal Conduit

Slip joints or running threads will not be permitted for coupling metallic conduit; however, running threads will be permitted in traffic signal head spiders and rigid metal conduit (RMC) outer-duct. When installing RMC, if a standard coupling cannot be used, an approved three-piece coupling shall be used. Conduit bodies, fittings and couplings for RMC shall be cleaned first and then painted with one coat of paint conforming to Section

9-08.1(2)B The paint shall have a minimum wet film thickness of 3-mils. The painted

coating shall cover the entire coupling or fitting. The threads on all metal conduit shall be rust-free, clean, and painted with colloidal copper suspended in a petroleum vehicle before couplings are made. All metallic couplings shall be tightened so that a good electrical connection will be made throughout the entire length of the conduit run. If the conduit has been moved after assembly, it shall be given a final tightening from the ends prior to backfilling. RMC ends shall be terminated with grounded end bushings. RMC entering cable vaults or pull boxes shall extend 2-inches beyond the inside wall face (for the installation of grounded end bushing and bonding). M 41-10 Page 8-97 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical 8-20RMC entering concrete shall be wrapped in 2-inch-wide pipe wrap tape with a minimum 1-inch overlap for 12-inches on each side of the concrete face. Pipe wrap tape shall be installed per the manufacturer’s recommendations. RMC bends shall have a radius consistent with the requirements of Code Article 344.24 and other articles of the Code. Where factory bends are not used, conduit shall be bent, using an approved conduit bending tool employing correctly sized dies, without crimping or flattening, using the longest radius practicable. Where the coating on galvanized conduit has been damaged in handling or installing, such damaged areas shall be thoroughly painted with paint conforming to Section 9-08.1(2)B . Metal conduit ends shall be threaded and protected with a snug fitting plastic cap that covers the threads until wiring is started.

8-20.3(5)B2 Non-Metallic Conduit

Where non-metallic conduit is installed, care shall be used in excavating, installing, and backfilling, so that no rocks, wood, or other foreign material will be left in a position to cause possible damage. PVC conduit ends shall be terminated with end bell bushings. PVC or HDPE conduit entering cable vaults and pull boxes shall terminate with the end bell flush with the inside walls of the Structure. Non-metallic conduit bends, where allowed, shall conform to Article 352.24 of the Code. Eighteen-inch radius elbows shall be used for PVC conduit of 2-inch nominal diameter or less. Standard sweep elbows shall be used for PVC conduit with greater than 2-inch nominal diameter unless otherwise specified in the Plans. In nonmetallic conduit less than 2-inch nominal diameter, pull ropes or flat tapes for wire installation shall be not less than ¼-inch diameter or width. In nonmetallic conduit of 2-inch nominal diameter or larger, pull ropes or flat tapes for wire installation shall be not less than ½-inch diameter or width. When HDPE conduit is used for directional boring, it shall be continuous, with no joints, for the full length of the bore. The conduit run shall be extended to the associated outlets with the same schedule HDPE or PVC conduit. Entry into associated junction box outlets shall be with the same schedule PVC conduit and elbows. The same requirements apply for extension of an existing HDPE conduit crossing. PVC conduit and elbows shall be connected to HDPE conduit with an approved mechanical coupling. The connection shall have minimum pullout strength of 700-pounds. Prior to installation of a mechanical coupling, the HDPE conduit shall first be prepared with a clean, straight edge. A water-based pulling lubricant may be applied to the threaded end of the mechanical coupling before installation. Solvent cement or epoxy shall not be used on the threaded joint when connecting the HDPE conduit to the mechanical coupling. The mechanical coupling shall be rotated until the HDPE conduit seats approximately ¾ of the distance into the threaded coupling depth. For PVC installation through a directional bore, the PVC shall be in rigid sections assembled to form a watertight bell and spigot-type mechanical joint with a solid retaining ring around the entire circumference of the conduit installed per the manufacturer’s recommendations. The conduit run shall be extended beyond the length of the bore, to the associated outlets with the same mechanical coupled PVC or with standard PVC conduit of the same schedule. The same requirements apply for extension of an existing PVC conduit Roadway crossing. PVC conduit shall be assembled using the solvent cement specified in Section 9-29.1 . Conduit ends shall be protected with a snug fitting plastic cap until wiring is started. Conduit caps, end bells and the section of PVC between the coupling and end bell bushing in cabinet foundations shall be installed without glue. Page 8-98 M 41-10

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical8-20.3(5)C Conduit Size

The size of conduit used shall be as shown in the Plans. Conduits smaller than 1-inch electrical trade size shall not be used unless otherwise specified, except that grounding conductors at service points may be enclosed in ½-inch-diameter conduit. Conduit between light standards, PPB, PS, or Type 1 poles and the nearest junction box shall be the diameter specified in the Plans. Larger size conduit is not allowed at these locations. At other locations it shall be the option of the Contractor, at no expense to the Contracting Agency, to use larger size conduit if desired, provided that junction box or vault capacity is not exceeded. Where larger size conduit is used, it shall be for the entire length of the run from outlet to outlet. Conduit runs with innerduct, shall have 4-inch outer-duct and shall be installed with four 1-inch innerduct unless otherwise indicated in the Plans.

8-20.3(5)D Conduit Placement

Conduit shall be laid so that the top of the conduit is a minimum depth of:

8-20.3(5)D1 Surface Mounting

Where surface mounting of conduit is required, supports shall consist of channel with clamps sized for the conduit. Support spacing shall comply with the Code, with the exception that spacing of channel supports for conduit shall not exceed 5-feet. The minimum distance between adjacent clamps and between the clamp and the end of the channel supports shall be 1-inch. Channel supports shall be installed with stops, to prevent clamps from sliding out of the ends.

8-20.3(5)D2 Structures

All conduits attached to or routed within bridges, retaining walls, and other structures shall be equipped with approved expansion, deflection, and/or combination expansion/ deflection fittings at all expansion joints and at all other joints where structure movement is anticipated, including locations where the Contractor, due to construction method, installs expansion and/or construction joints with movement. All conduit fittings shall have movement capacity appropriate for the anticipated movement of the Structure at the joint. Approved deflection fittings shall also be installed at the joint between the bridge end and the retaining wall end, and the transition from bridge, wall, or other structure to the underground section of conduit pipe.

8-20.3(5)E Method of Conduit Installation

Conduit shall be placed under existing pavement by approved directional boring, jacking, or drilling methods at locations approved by the Engineer. The pavement shall not be disturbed unless allowed in the Plans or with the approval of the Engineer in the event M 41-10 Page 8-99 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical 8-20obstructions or impenetrable soils are encountered. High density polyethylene (HDPE) conduit runs, which enter the traveled way or shoulders, shall be installed using the directional boring method.

8-20.3(5)E1 Open Trenching

When open trenching is allowed, trench construction shall conform to the following:

8-20.3(5)E2 Conduit Plowing

All conduit plowing shall be supervised by a licensed electrical Contractor. The starting point shall be anchored or held such that conduit movement at the start of the plowing operation is kept to a minimum. Conduit shall be fed from in front of the plow or a mounted reel such that conduit movement is kept to a minimum once it is in the ground. Use of a stationary reel or any other method that results in the conduit being pulled through the plow trench is not allowed. The feed shoe shall have rollers which conform to the conduit at a radius of not less than 15 times the diameter of the conduit. The conduit will not be permitted to pass over stationary guides nor over rollers or sheaves, which will permit a bend radius of less than 15 times conduit diameter. If the Contractor can demonstrate that such a roller, guide, chute, or sheave is not available, the diameter of the equipment may be reduced to the following for conduits up to 4-inches in diameter:

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical2. Deviations of up to one foot from the projected path may be authorized by the

Engineer, provided the new route does not result in total conduit run bends exceeding NEC requirements. Deviations in excess of one foot from the projected path are not allowed and the maximum taper rate is 1-inch per linear foot of conduit.

8-20.3(5)E3 Boring

Bore pits shall be backfilled and compacted in accordance with Section 2-09.3(1)E . Directional boring, jacking or drilling pits shall be a minimum of 2-feet from the edge of any type of pavement, unless otherwise approved by the Engineer. Excessive use of water that might undermine the pavement or soften the Subgrade will not be permitted. When approved by the Engineer, small test holes may be cut in the pavement to locate obstructions. When the Contractor encounters obstructions or is unable to install conduit because of soil conditions, as determined by the Engineer, additional Work to place the conduit will be paid in accordance with Section 1-04.4 .

8-20.3(5)E4 Directional Boring

Directional boring for electrical installations shall be supervised by a licensed electrical contractor in accordance with Section 8-20.1(1) . Where directional boring is called for, conduit shall be installed using a surface-launched, steerable drilling tool. Drilling shall be accomplished using a high-pressure fluid jet tool- M 41-10 Page 8-101 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical 8-20head. The drilling fluid shall be used to maintain the stability of the tunnel, reduce drag on the conduit, and provide backfill between the conduit and tunnel. A guidance system that measures the depth, lateral position, and roll shall be used to guide the tool-head when creating the pilot hole. Once the pilot hole is established, a reamer and swivel shall be used to install the conduit. Reaming diameter shall not exceed 1.5 times the diameter of the conduits being installed. Conduit that is being pulled into the boring shall be installed in such a manner that the conduit is not damaged during installation. The pullback force on the conduit shall be controlled to prevent damage to the conduit. A vacuum spoils extraction system shall be used to remove excess spoils generated during the installation. Excess drilling fluid and spoils shall be disposed of. The method and location used for disposal of excess drilling fluid and spoils shall be subject to the Engineer’s approval. Drilling fluid returns (caused by fracturing of formations) at locations other than the entry and exit points shall be minimized. Drilling fluid that surfaces through fracturing shall be cleaned up immediately. Mobile spoils-removal equipment capable of quickly removing spoils from entry or exit pits and areas with returns caused by fracturing shall be used as necessary during drilling operations.

8-20.3(5)E5 Boring with Casing

Where boring with casing is called for, the casing shall be placed using an auger inside the casing to remove the soil as the casing is jacked forward. The auger head shall proceed no more than 4-inches ahead of the pipe being jacked. Boring operations shall be conducted to prevent caving ahead of the pipe. Installed casing pipe shall be free from grease, dirt, rust, moisture, and all other deleterious contaminants. The space between the conduit and casing shall be plugged with sandbags and a grout seal 12-inches thick at each end of the casing. Casing abandoned due to an encountered obstruction shall be grout sealed in the same manner. Grout shall conform to Section 9-20.3(4) . In lieu of sandbags and grout, unopened prepackaged concrete and grout may be used to seal the casing. Material shall not be removed from the boring pit by washing or sluicing. All joints shall be welded by a Washington State certified welder. Welding shall conform to AWS D 1.1-80 Structural Welding Code, Section 3, Workmanship.

8-20.3(6) Junction Boxes, Cable Vaults, and Pull Boxes

Standard Duty and Heavy-Duty junction boxes, pull boxes, and cable vaults shall be installed at the locations shown in the Plans. The Contractor may install, at no expense to the Contracting Agency, such additional boxes as may be desired to facilitate the Work. Junction box installation shall conform to details in the Standard Plans . Cable vaults and pull boxes shall be installed in accordance with the following:

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical6. Pull boxes shall be configured such that the tensile and bending limitations of the

fiber optic and other cables are not compromised. Pull boxes shall be configured to mechanically protect the fiber optic and other cables against installation force as well as inert forces after cable pulling operations.

8-20.3(7) Messenger Cable, Fittings

Messenger cable shall be secured to steel strain poles by means of pole bands, and to timber poles by means of single strand guy eye bolts. Pole bands and eyebolts shall be installed as detailed in the Plans. Messenger cable shall be secured to eye bolts or strain clamps at poles by the use of approved self-locking cable clamp type dead-ending devices. Messenger cable shall be secured to bull rings and anchors by two approved U-bolt connectors and guy thimbles. Traffic signal control cable shall be secured to the messenger cable by cable ties. The ties shall be black nylon with ultraviolet protection and rated at 120-pound minimum unlocking strength. Down guy assemblies shall be installed as detailed in the Standard Plans . M 41-10 Page 8-103 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical 8-208-20.3(8) Wiring All underground wiring shall be installed in conduit unless specifically noted otherwise in the Contract. All wiring in conduit shall be installed with a lubricant recommended by cable/conductor manufacturer. When wiring is noted for future connection, the ends of each wire or cable shall be sealed with an approved heat shrink end cap. Induction loop circuits, magnetometer circuits and illumination circuits may have splices as required here and in the Standard Plans . All other wiring shall run continuously, without splices, from a terminal located in a cabinet, compartment, pedestrian pushbutton assembly, or signal head to a similarly located terminal. Terminal connections may not be installed below grade such as in junction boxes or vaults. If loop lead splices are not installed immediately after the installation of the loop leads into the adjacent junction box, the ends of the two conductor “home run” cable shall be sealed with heat shrink end caps to prevent entry of moisture into the two-conductor cable. All coaxial cables shall have heat shrink end caps installed prior to aerial or underground installation of the cables to prevent moisture entry into the cable. Multiconductor cable for signal displays shall be installed entirely through the mounting fitting. The outer insulation shall extend a minimum of 1 inch inside the signal display housing before being stripped back for the connection of individual conductors to the terminal block. Installation of coaxial or coaxial/Siamese cable or data cables with a 600 VAC rating will be allowed in the same raceway with 480 VAC illumination cable. All termination for traffic signal control systems shall follow the conductor sequence color code as shown in the following table. Conductor Number Color Code Color Trace Use 1 R Red Red or Don’t Walk 2 O Orange Yellow or Spare 3 G Green Green or Walk 4 W White Neutral 5 B Black Ped Call or Spare 6 Wb White/Black Neutral or Spare 7 Bl Blue Ped Call or Spare 8 Rb Red/Black Red or Don’t Walk 9 Ob Orange/Black Yellow or Spare 10 Gb Green/Black Green or Walk Quick disconnect connectors shall be installed in the base of all poles supporting a luminaire. Every conductor above ground potential shall be served by a fused quick disconnect kit. Every conductor at ground potential shall be served by an unfused quick disconnect kit. Pole and bracket cable meeting the requirements of Section 9-29.3(2)D shall be installed between the quick disconnects and the luminaire and between the sign light hand hole and the isolation switch. In addition, the conductors from the isolation switch and the sign light shall be minimum AWG 14, meeting the requirements of Section 9-29.3(2)A or

9-29.3(2)B Pole and bracket cable jacket shall be removed from the quick disconnect to

within 2 inches below the support bracket clamp. Sufficient slack wire shall be installed at each junction box to allow conductors, cables, or splices within the junction box to be raised a minimum of 18 inches outside of the box. Drip loops shall be provided on all aerial conductors where they enter poles, signal heads, or weather heads. Page 8-104 M 41-10

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical8-20.3(8)A Splices

All splices in underground illumination circuits, induction loops circuits, and magnetometer circuits shall be installed in junction boxes. The only splice allowed in induction loop circuits and magnetometer circuits shall be the splice connecting the induction loop lead in conductors or magnetometer lead in conductors to the shielded lead in cable. Splices for induction loop circuits and magnetometer circuits shall be one of the following:

8-20.3(8)B Identification

Insulated neutral conductors shall be identified in accordance with the NEC requirements. Every conductor at every wire termination, connector, or device shall have an approved wire marking sleeve bearing as its legend, the circuit number indicated in the Contract. All terminal strips shall also bear the circuit number consistent with the Contract. All wiring shall be labeled at all junction boxes, pull boxes, cable vaults, poles, and cabinets with an approved tag with legends as follows:

8-20.3(8)C Wire and Cable Pulling

When conductors, either cable or single, are being installed, the Contractor shall not exceed the tension limitations recommended by the manufacturer. Conductors may be pulled directly by hand or with mechanical assistance. If conductors are pulled by mechanical means, a dynamometer with drop-needle hand shall be used on every mechanically assisted pull. On mechanically assisted pulls, insulation shall be stripped off the individual conductor and the conductor formed into a pulling eye and firmly attached to the pulling rope/tape, or a cable grip shall be used. The Contractor shall determine the maximum allowable pulling tension, taking into account the direction of the pull, type of raceway, cable geometry, weight of the cable, the coefficient of friction, and side wall pressure, using the information from the cable manufacturer. If there are bends in the raceway or sheaves are used for the cable pull, the contractor shall use the cable manufacture’s side wall pressure limits to determine the maximum pulling tension. The maximum pulling force applied directly to the conductor when pulling eyes are used or when the conductor is formed into a loop, shall be limited to that shown in the following table for copper conductor. When a cable grip is applied over nonmetallic sheathed cables, the maximum pulling force shall be limited to 1,000 pounds provided this is not in excess of the force as determined above. Conductor Pounds 8 132 6 210 4 334 3 421 2 531 1 669 1/0 845 2/0 1,065 3/0 1,342 4/0 1,693 250 Kcmil 2,000 500 Kcmil 4,000 Adequate lubrication of the proper type to reduce friction in conduit and duct pulls shall be utilized. The grease and oil-type lubricants used on lead sheathed cables shall not be used on nonmetallic sheathed cables. Pulling tape shall meet the requirements of Section

9-29.1(10) Pull string may not be used.

Page 8-106 M 41-10

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical8-20.3(9) Bonding, Grounding

All system bonding and grounding shall be complete and approved before energizing associated circuits or equipment, including before energizing a new or modified circuit in an existing system. All metallic appurtenances containing electrical conductors (such as luminaires, light standards, cabinets, or metallic conduit) shall be made mechanically and electrically secure to form continuous systems that are effectively grounded. Install an equipment grounding conductor in all new conduit, whether or not the equipment grounding conductor is called for in the wire schedule. For each new conduit with innerduct install an equipment grounding conductor in only one of the innerducts unless otherwise required by the NEC or the plans. Messenger cable shall be bonded to steel strain poles by means of a bond strap connected between an approved U-bolt connector and a bonding lug on the pole. The equipment ground conductor shall not be cut or spliced except at junction boxes. At points where shields or shielded conductors are grounded, the shields shall be neatly wired and terminated on grounding terminal strip. Bonding jumpers and equipment grounding conductors meeting the requirements of Section 9-29.3(2)A3 shall be minimum #8 AWG, installed in accordance with the NEC. Where existing conduits are used for the installation of new circuits, an equipment grounding conductor shall be installed unless an existing equipment ground conductor, which is appropriate for the largest circuit, is already present in the existing raceway. The equipment ground conductor between the isolation switch and the sign lighter fixtures shall be minimum #14 AWG stranded copper conductor. Where parallel circuits are enclosed in a common conduit, the equipment-grounding conductor shall be sized by the largest overcurrent device serving any circuit contained within the conduit. All connectors between bonding jumpers and equipment grounding conductors shall be installed in accordance with the NEC. Identification of the equipment grounding conductor shall conform to all code requirements. Junction boxes with metallic lids shall have one 4-foot long tinned braided copper equipment bonding strap with full circle connector lugs installed from each metallic junction box lid(s) to the junction box frame. A non-insulated stranded copper conductor, minimum #8 AWG, with a full circle crimp on connector (crimped with a manufacturer recommended crimper) shall be connected to the junction box frame or frame bonding stud, the other end shall be crimped to the equipment bonding conductor, using a “C” type crimp connector.

8-20.3(9)A Supplemental Grounding

Supplemental grounding shall be provided at light standards, signal standards, cantilever and sign bridge structures. Steel signposts which support signs with sign lighting or flashing beacons shall also have supplemental grounding. The supplemental ground conductor shall be connected to the foundation rebar (all rebar crossings shall be wire tied) by means of a grounding connector listed for use in concrete, and lead up directly adjacent to a conduit installed within the foundation. The free end of the conductor shall be terminated to the ground terminal, with an approved clamp, within the pole. If no ground terminal is provided, bond to standard or post. Three feet of slack shall be provided inside the standard. Where a concrete and rebar foundation is not used the supplemental ground shall be a grounding electrode placed in the hole next to the post prior to back fill. For light standards, signal standards, cantilever and sign bridge Structures the supplemental grounding conductor shall be #4 AWG non-insulated stranded copper conductor. For steel sign posts which support signs with sign lighting or flashing beacons the supplemental grounding conductor shall be #6 AWG non-insulated stranded copper conductor. M 41-10 Page 8-107 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical 8-208-20.3(9)B Service Grounding Bonding of the equipment grounding system and neutral at the service point shall be accomplished as required under the NEC. Grounding of the neutral shall be accomplished only at the service or at a separately derived system. Install a two grounding electrode system at each service entrance point, at each electrical service installation and at each separately derived power source. The service entrance grounding electrode system shall conform to the “Service Ground” detail in the Standard Plans . If soil conditions make vertical grounding electrode installation impossible an alternate installation procedure as described in the NEC may be used. Maintain a minimum of 6 feet of separation between any two grounding electrodes within the grounding system. Grounding electrodes shall be bonded copper, ferrous core materials and shall be solid rods not less than 10 feet in length if they are ½ inch in diameter or not less than 8 feet in length if they are ⅝ inch or larger in diameter. The connection of the grounding electrode conductor to the grounding electrode shall be made with two approved ground clamps.

8-20.3(10) Service, Transformer and ITS Cabinets

Power sources shown in the Plans are approximate only; exact location will be determined in the field. Aerial fed service and transformer cabinets shall include the following:

8-20.3(11) Testing

Traffic signal and ITS control cabinets shall be tested at the State Materials Laboratory unless otherwise designated in the Contract. Where initial testing is performed at the State Materials Laboratory, the Contractor shall arrange for transfer of the equipment to Page 8-108 M 41-10

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electricalthe designated maintenance facility for site-specific operational testing when notified that

testing is complete at the State Materials Laboratory. Prior to shipping, the Contractor shall arrange an appointment for testing at the designated testing facility. Induction loop circuits shall be tested in accordance with Section 8-20.3(14)D . All other conductors shall be tested in accordance with this Section. The Contractor shall conduct the following tests on all electrical circuits with nominal operating voltage between 115-volts and 600-volts, in the presence of the Engineer:

8-20.3(11)A Traffic Signal System Testing

The Contractor shall provide the Engineer a minimum of 5 days advance written notice of the proposed traffic signal turn-on date and time for review and approval. System functional testing shall occur no later than the working day prior to the scheduled turn- on date. The Contractor shall provide traffic control to stop all traffic from entering the intersection during testing. During testing, the Contracting Agency personnel will need to enter the intersection to verify operations of all signal displays. Detection systems shall be tested separately before the traffic signal system functional testing date. Induction loop detection shall be in accordance with Section 8-20.3(14)D . The Contracting Agency electronics technician will deliver and install the programmed controller and verify proper operation. At the start of testing, the Contracting Agency electronics technician will turn the traffic signal system to its flash mode to verify proper flash indications. The Contracting Agency electronics technician will then conduct functional tests to demonstrate that each part of the traffic signal system functions as specified, including running the traffic signal system for one full cycle with no traffic. These demonstrations shall be conducted in the presence of a Contracting Agency M 41-10 Page 8-109 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical 8-20electronic technician, Inspector, the Contracting Agency electrical Inspector, and Regional Traffic Engineer or his/her designee. Covers for signal displays and pedestrian pushbuttons shall remain installed, with indications verified through the mesh portions of the covers. If any part of the traffic signal system fails the functional testing, the Contractor shall make repairs or replace equipment as necessary, and then submit a new turn-on date request. Functional testing will be repeated in accordance with this Section prior to the new turn-on date.

8-20.3(11)B Traffic Signal System Turn-On

Traffic signal system turn-on shall occur no less than one working day after successful completion of functional testing in accordance with Section 8-20.3(11)A . On the day of traffic signal system turn-on, the Contractor shall provide traffic control to stop all traffic from entering the intersection and remove the covers from all traffic signal displays and pedestrian pushbuttons. The Contracting Agency electronics technician will then turn the traffic signal to stop and go operation for no less than one full cycle. Based on the results of the turn-on, the Engineer will direct the Contracting Agency electronics technician to either turn the traffic signal on to normal stop and go operation or to turn the signal off and require the Contractor to cover all signal displays and correct all deficiencies. If the Contractor is directed to turn off the traffic signal, the Contractor shall schedule a new turn-on date with the Engineer in accordance with the previously mentioned procedures. Unless approved by the Engineer no change to signal stop and go operation will be allowed between 6:00 a.m. to 10:00 a.m. and 2:00 p.m. to 7:00 p.m. on Monday through Thursday, nor will signal operation changes be allowed on Fridays, weekends, holidays, or the day preceding a holiday.

8-20.3(11)C Uninterruptible Power Supply (UPS) Testing

Uninterruptible Power Supply (UPS) systems shall be tested before and after field installation. Each UPS system shall undergo quality control testing, Contracting Agency laboratory testing, and field testing.

8-20.3(11)C1 UPS Quality Control Testing

Prior to delivery of the UPS system to the State Materials Laboratory in Tumwater, all components and equipment, including the batteries shall be fully installed in the cabinet and the UPS system operations shall be successfully tested by the Contractor’s representative. A testing certification (letter or similar) shall be provided with the cabinet. After the UPS system has been successfully tested, the batteries shall be removed from the cabinet and the cabinet and batteries shall be delivered, independently, to the State Materials Laboratory for pre-installation laboratory testing.

8-20.3(11)C2 UPS Laboratory Testing

The UPS system testing shall verify complete cabinet assembly and simulate UPS system operations as installed in the field. The tests shall check the operation of each individual component as well as the overall operation of the system. Laboratory testing will consist of the following four separate stages:

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and ElectricalTesting will follow in the listed order with no time gaps between stages unless mutually

agreed upon by the Contractor and the State Materials Laboratory. The Contractor shall designate a qualified representative for these tests. All communications and actions regarding testing of all equipment submitted to the State Materials Laboratory shall be made through this representative. These communications and actions shall include, but not be limited to, all notifications of failure or rejection, demonstration of the equipment, and the return of rejected equipment. Stage 1: Delivery and Assembly The Contractor shall provide all Work necessary to assemble the UPS system and make ready for demonstration at the State Materials Laboratory. Upon delivery, the batteries shall be reinstalled in the cabinet and the UPS system shall be made fully operational. All components for the complete UPS system, including the necessary test equipment, shall be ready for testing within 14 calendar days of delivery to the State Materials Laboratory. Stage 2: Documentation All documentation shall be furnished with the UPS system equipment prior to the start of testing. The documents to be supplied shall consist of the following:

8-20.3(11)C3 UPS System Field Testing

After installation, the Contractor shall field test the UPS system to ensure the system operates in accordance with Contract and manufacturer’s instructions. The test shall ensure that that all components are operational within manufacturer’s tolerances. The Contractor shall provide a testing procedure to the Engineer for approval. The testing procedure shall provide for operational testing of the following:

8-20.3(12) Painting

Application of color to a pole shall be by powder-coating. Color applied to cabinets may be by powder-coating or the use of an approved wrapping material. Painting, repair, or touchup required shall be done in conformance with applicable portions of Section 6-07 . Cabinets and poles shall not be painted unless specifically indicated in the Plans or Special Provisions. The bottom surface of all pole base plates (faying surface), all slip base plates and hardware, and all anchor bolt hardware shall not have any color applied. Cabinet wraps shall be vinyl (such as Polyvinyl Fluoride/PVF) and shall include an anti- graffiti overlay. Wraps shall be intended for use on traffic signal and similar roadside equipment cabinets and shall not affect the thermal characteristics of the cabinet. Wraps shall be installed such that all doors, vents, and keyholes remain fully functional and unobstructed. Art for wraps shall comply with any public art requirements or restrictions of the agency that owns the cabinet upon which the wrap is being installed.

8-20.3(13) Illumination Systems

8-20.3(13)A Light Standards

Light standards shall be handled when loading, unloading, and erecting in such a manner that they will not be damaged. Parts that are damaged due to the Contractor’s operations shall be repaired or replaced at the Contractor’s expense. Light standards shall not be erected on concrete foundations until foundations have set at least 72 hours or attained a compressive strength of 2,400 psi, and shall be raked sufficiently to be plumb after all load has been placed. Slip base installation shall conform to the following: Page 8-112 M 41-10

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical1. The slip plane shall be free of obstructions such as protruding conduit or anchor

bolts. The anchor bolts, and other obstructions shall terminate at a height below the elevation of the top of the slip plate. Conduit shall extend a maximum of 1 inch above the top of the foundation, including grounding end bushing or end bell bushing.

8-20.3(4) The clamping bolts shall be tightened to the specified torque, plus or minus

2 percent, in two stages using an accurately calibrated torque wrench before erecting the light standard. Except as otherwise specified, the Contractor shall install 1-inch diameter clamping bolts in all slip bases to a torque of 95 foot-pounds.

8-20.3(13)B Vacant

8-20.3(13)C Luminaires

The Contractor shall mark the installation date on the inside of the luminaire ballast or driver housing using a permanent marking pen. All luminaires shall be mounted level, both transverse and longitudinally, as measured across points specified by the manufacturer. Leveling and orientation shall be accomplished after pole plumbing.

8-20.3(14) Signal Systems

8-20.3(14)A Signal Controllers

All control cabinets and control equipment shall be factory wired ready for operation. Field work will be limited to placing cabinets and equipment and connecting the field wiring to field terminal strips. All controller cabinets shall be installed on a silicone seal pad. Controllers for portable traffic signal systems shall conform to the requirements of Section 9-29.13(7) .

8-20.3(14)B Signal Heads

Unless ordered otherwise by the Engineer, signal heads shall not be installed until all other signal equipment is installed and the controller is in place, inspected, and ready for operation at that intersection, except that the signal heads may be mounted if the faces are covered to clearly indicate the signal is not in operation. Three section displays mounted on type M mounts shall have the plumbizer between the top and second display. Four and five section vertical displays mounted on type M mounts shall have the plumbizer between the second and third display.

8-20.3(14)C Induction Loop Vehicle Detectors

Induction loops shall be constructed as detailed in the Contract and the following:

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electricalentire loop and home run(s) and at the entrance and exit of all turns greater than

45 degrees. When a new loop is installed in the same location as an existing loop, the existing loop shall be removed by grinding deep enough to destroy the existing loop conductors. Where the bid item “Planing Bituminous Pavement” is not included in the Contract, removal of existing loops shall be included in the bid item for new loop installation unless otherwise specified in the Contract.

8-20.3(14)D Test for Induction Loops and Lead-In Cable

All tests shall be performed by the Contractor in the presence of the Engineer for each loop. All costs associated with testing shall be included in the unit Contract prices of the respective Bid items. Tests are defined as follows: Test A – DC resistance between the two lead-in cable wires, as measured by a volt ohmmeter. The resistance shall not exceed 10 ohms. Test B – DC resistance test between the lead-in cable shield and ground, using a megohm meter at 500 volts DC. The resistance shall equal or exceed 100 megohms. Test C – DC resistance test between the loop circuit and ground using a megohm meter at 500 volts DC. The resistance shall equal or exceed 100-megohms. Test D – Inductance test of the loop circuit. Type 1 loops, Type 2, and Type 3 loops connected in series shall have a minimum inductance of 150 microhenries. Single and parallel spliced Type 2 and Type 3 loops shall have a minimum inductance of 75 microhenries. The results of all tests shall be recorded and provided to the Engineer. Testing shall be performed as follows:

8-20.3(14)E Signal Standards

Traffic signal standards shall be furnished and installed in accordance with the methods and materials noted in the Contract and the following requirements:

8-20 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical8-20.3(15) Grout

Grout shall conform to the requirements of Section 6-02.3(20) and 9-20.3(4) .

8-20.3(16) Reinstalling Salvaged Material

When the Contract requires salvaged electrical equipment to be reinstalled, the Contractor shall furnish and install all necessary materials and equipment, including anchor bolts, nuts, washers, concrete, etc., required to install the salvaged equipment. Removed anchor bolts, connecting bolts, nuts, and washers shall not be re-used.

8-20.3(17) “As Built” Plans

Upon Physical Completion of the Work, the Contractor shall submit corrected shop drawings, schematic circuit diagrams, or other drawings necessary for the Engineer to prepare corrected Plans to show the Work as constructed. These drawings shall be on sheets conforming in size to the provisions of Section 1-05.3 .

8-20.4 Measurement

Conduit of the kind and diameter specified will be measured, through the junction boxes, by the linear foot of conduit placed, unless the conduit is included in an illumination system, signal system, intelligent transportation system, or other type of electrical system lump sum Bid item. Casing will be measured by the linear foot for the actual length of casing placed, unless the casing is included in an illumination, signal, or other electrical system lump sum Bid item. Directional boring will be measured by the linear foot for the length of the boring tunnel.

8-20.5 Payment

Payment will be made for each of the following Bid items that are included in the Proposal: “Illumination System ____”, lump sum. “Traffic Signal System ____”, lump sum. “ITS ____”, lump sum. The lump sum Contract price for “Illumination System, ____”, “Traffic Signal System ____”, or “ITS _____” shall be full pay for the construction of the complete electrical system, modifying existing systems, or both, including sign lighting systems, as described above and as shown in the Plans, and herein specified, including excavation, backfilling, concrete foundations, conduit, wiring, restoring facilities destroyed or damaged during construction, salvaging existing materials, and for making all required tests. All additional materials and labor, not shown in the Plans or called for herein and which are required to complete the electrical system, shall be included in the lump sum Contract price. “Conduit Pipe ____ In. Diam.”, per linear foot. The unit Contract price per linear foot for “Conduit Pipe____ In. Diam.” shall be full pay for furnishing all pipe, pipe connections, elbows, bends, caps, reducers, conduits, unions, junction boxes, and fittings; for placing the pipe in accordance with the above provisions, including all excavation, jacking, or drilling required, backfilling of any voids around casing, conduits, pits, or trenches; restoration of native vegetation disturbed by the operation, chipping of pavement, and bedding of the pipe; and all other Work necessary for the construction of the conduit, except that when conduit is included on any project as an integral part of an illumination, traffic signal, or ITS system, and the conduit is not shown as a pay item, it shall be included in the lump sum price for the system shown. M 41-10 Page 8-117 Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical 8-20All costs for installing conduit containing both signal and illumination wiring shall be included in the Contract prices for the signal system. All costs for installing junction boxes containing both illumination and signal wiring shall be included in the Contract prices for the signal system. “Casing”, per linear foot. The unit Contract price per linear feet for “casing” shall be full payment for boring, jacking or drilling for installing casing, and backfilling any voids around the casing and pits or back filling of the trenches required to install the casing. This cost will also include any restoration of native vegetation disturbed by the operation. “Directional Boring”, per linear foot The unit Contract price per linear foot for “Directional Boring”, shall be full pay for furnishing all labor, materials, equipment and electrical supervision associated with the directional boring, except that when directional boring is included on any project as an integral part of an illumination, traffic signal, or ITS system, and the directional boring is not shown as a pay item, it shall be included in the lump sum price for the system shown.