Section 680 Section 680 lighting. Consideration may be given to th e amount of illumination provided by existing lights in determining the wattage and/or quantity of lights to be provided, if noted in the Contractor's submitted lighting plan.
630.03.2 Glare Control. All lighting shall be designed, installed, and operated to avoid
glare interference with roadway traffic or discom fort for residences adjoining the roadway. The Contractor shall locate, aim, and adjust the lights to provide the required level of illuminance and uniformity in the work area w ithout the creation of objectionable glare. The Engineer shall determine when glare ex ceeds acceptable levels, either for traffic or adjoining residences. The Contractor shall provide shields, visors, or louvers on luminaries as necessary to reduce objectionable levels of glare. Lighting systems should not be aimed higher than 30° from straight down unless the fixture has been specifically designed to prevent glare. In no case shall the main beam of the light be aimed higher than 60° above straight down. The lights should be set as far from traffic as practical and aimed in the direction of, or perpendicular to, the traffic flow.
680.04 Method of Measurement. Portable construction lighting, by tower and/or
machine lighting systems, will be measured for payment only when a pay item for portable construction lighting is included in the contr act. Otherwise, portable construction lighting will be considered incidental to other contract items and no direct payment will be made. When a pay item for the portable construction lighting is provided in the contract, measurement will be made at the contract lump sum price. Partial payments for this pay item will be made as follows:
1.50% of the lump sum price on the first monthly estimate after using the lighting system.
2.25% of the lump sum price on the first monthly estimate made after 50% of scheduled night work that requires construction lighting is completed.
3.25% of the lump sum price on the first monthly estimate after the completion of all scheduled night work that requires construction lighting.
680.05 Basis of Payment. Portable Construction Lighting, as measured above, shall be
paid for at the contract lump sum price, which price shall be full compensation for furnishing, operating and maintaining everything necessary to provide a portable construction lighting system. Payment will be made under: 680-A: Portable Construction Lighting - lump sum SECTION 681 - ROADWAY LIGHTING SYSTEM
681.01 Description. This work consists of furnishing; installing, testing, erecting,
constructing and assembling all materials to ensure a properly operating roadway lighting system in accordance with the plans and specifications.
681.02 General Provisions.
681.02.1 Tests and Inspection. The complete job shall be, during and/or after
construction, subject to the supervision of the Engineer. Inspections and tests shall be conducted by the Engineer or in the presence of the Engineer prior to acceptance of the project and shall consist of the following tests:
1.Upon written notice, the Contractor shall furnish two men, one to include the job foreman, and tools to assist and be directed by the Engineer for a period of time required to make such tests and inspec tions as are requested by the Engineer pertaining to the safety and operation of any devices or system installed.
2.Insulation break-down tests with a megohm meter shall be conducted on each and every circuit. Results of the tests shall meet minimum requirements for such tests set up by the latest edition of U.L. Standard 83. All readings shall be made in the Engineer's presence and a written report of same submitted to the Engineer upon completion of these tests.
3.The ground resistance of each ground rod and grounding system shall be measured. The resistance and soil conditions at the time the measurements were made shall be recorded and a report shall be submitted to the Engineer for approval. Ground-resistance measuremen ts shall be made in normally dry weather, not less than forty-eight (48) hours after rainfall, and with the ground under test isolated from other grounds. Ground resistance shall also be measured from each piece of equipment to the ground electrode. The ground rods and grounding system shall meet the requirements of the National Electrical Code (NEC). The Contractor shall be require d to correct any deficiencies prior to acceptance of the system.
4.The Contractor shall be required to de monstrate in the presence of the Engineer, the operation of each and every device inst alled. This shall include, but not be limited to, all winches, latching devices, photocells and circuit breakers.
5.The Contractor may be required to take lighting level measurements in the presence of the Engineer at locations designated by the Engineer to verify compliance with the approved lighting layout submittals. Field light level measurements shall be equal to or exceed light levels on the submittal. After completion of all tests, the Contractor sh all request a semi-final electrical inspection. After this inspection and when all discrepancies have been corrected, the roadway lighting system shall be placed in operation for a sa tisfactory performance period. Final electrical inspection will not be made until the entire roadway lighting system has operated satisfactorily for a period of not less than fourteen (14) consecutive days, during which period(s) contract time will continue to be evaluated. During each fourteen (14) day performance period, if any failure should occu r in any of the mechanical or electrical equipment in the system other than minor r eadily replaceable components, such as light bulbs, etc., the cause of the failure shall be determined, the necessary replacements made and the system operated satisfactorily for an additional period of not less than fourteen (14) consecutive days. Upon completion of all work on the project and the satisfactory completion of the fourteen
14.day performance period on the roadway lighting system, the Contractor may request a final inspection of the project. If all items of work, excepting the completion of the Contractor’s warranty period on the roadway lighting system, are co nsidered satisfactory and acceptable, the Contractor may be given a partial maintenance release. This partial maintenance release is to relieve the Contractor of responsibility, except as stated in the roadway lighting system material warranty section, from maintenance on all other items of work on the project during the warranty period on the roadway lighting system. If the minimum 6-month warranty period has expired on the day of final inspection, this partial maintenance release is to relieve the Contractor of responsibility from maintenance on all items of work on the project. During final inspection or upon completion of the warranty period after the final inspection, the Contractor shall request an inspection of the roadway lighting system. If this work is considered satisfactory and a cceptable, the Contractor may be given a full maintenance release. Payment of the final estimate releasing the re maining retainage will not be made until after final acceptance of the project. No additional time will be allowed for any additional performance period(s) found to be necessary because of failure(s) during the initial period, or subsequent performance period(s). Acceptance will be for the entir e roadway lighting system, no pa rts of the system will be accepted separately.
681.02.2 Material Warranty. The following Contractor warranty stipulations are in
addition to those covered by Subsection 106.01.2 of the Standard Specifications. All roadway lighting equipment and related components shall be fully operational at the final inspection of the project. The Contractor shall warrant and guarantee all roadway lighting equipment and related components for a minimum period of six (6) months. This warranty period begins after the day of partial release from maintenance or at th e start of continuous use as referenced in Subsection 681.02.8. Regardless of when the warranty period begins, the Contractor shall warrant and guarantee the roadway lighting equipment and related components (1) at least up to and including the day of final inspection and (2) during the Contractor’s warranty period. Final acceptance will not be made until after the warranty period expires. It is the intent of the preceding paragraph to provide for equipment that performs as intended by the manufacturer. It is the further intent to obtain from the Contractor a level of workmanship that assures the Department of an operational system devoid of Contractor laxities. Failure to perform as indicated shal l require the Contractor to replace in kind or repair, the equipment or workmanship in question at no additional cost to the State. All materials and labor cost resulti ng from the replacement or repair of equipment or correction of poor workmanship shall be borne by the Contractor. The Contractor shall not be responsible for outages occurring during the warranty period due to vandalism, traffic accidents or any proble m not related to materials or workmanship. The Contractor will be required to make the n ecessary repairs but the cost of such repair shall be borne by the Department. All manufacturer's standard warranties or guarantees on all electrical and mechanical equipment provided as customary trade practice shall be delivered to the Engineer at the final inspection. All warranties and guarantees shall be made out to the Department. 681.02.3--General Information. Plans are diagrammatic and care shall be exercised to install all electrical work in a manner that func tions in accordance with plans, specifications and manufacturer's recommendations. Exact location of all equipment shall be determined from dimensions on the plans, manufacturer's shop plans, or as directed by the Engineer. Conduit runs, cable runs and circuit groupings are indicated diagrammatically with number of conductors shown in each run to clarify the operation and function of the system. The Contractor shall provide the number of conductors and conduits to produce an operative system as specified herein. All materials shall be new and of equal or superior quality to those specified. All equipment or materials shall conform to the latest requirements and/or additions to the Underwriter's Laboratories, National Electrical Code, or National, State or local agency having jurisdiction. All materials, devices, equipment, etc. shall be installed, tested, and connected in strict compliance with the manufacturer's recomme ndations, and, where sp ecified, under the direct supervision of a ma nufacturer's representative. All materials, devices, equipment, lighting, etc. shall be installed as required by the plans, specifications and manufacturer's recommenda tions. The Contractor shall use only experienced labor to do a ll trenching and jacking. All equipment and apparatus furnished shall be protected from damage by the Contractor. All items marred or damaged shall be replaced or repaired to the co mplete satisfaction of the Engineer solely at no ad ditional cost to the State. Any piece of equipment, switch, device, etc., shown to be mounted on and/or adjacent to any existing equipment, which if installed may impair the proper operation of that equipment, shall be moved by the Contractor as required in order that existing equipment shall function properly. The Engineer shall be notified if any such condition exists. It shall be the responsibility of the Contractor to provide training in the operation and maintenance of all parts of the roadway lighting system to any person, or persons designated by the Engineer. The training shall consist of a minimum of eight (8) hours of on-site instructions and shall be conducted near the end of completion of all work, but prior to final acceptance of the project. The Contractor shall furnish the Engineer three (3) bound sets of the manufacturer's publications relating to the installation, operation and maintenance of all component parts of the roadway lighting system. The Contractor shall maintain a complete and accurate set of as-built plans throughout the project. At the final inspection, one (1) set each of full scale and 1/2 scale as-built blueprints shall be furnished to the Engineer. The Contractor shall submit eight (8) copies of a letter of certification from the high mast manufacturer on manufacturer's letterhead, certifying that all of the lowering devices, poles and luminaires have been installed in acc ordance with the manuf acturer's guidelines. As referenced in Section 683 regarding high mast lighting assemblies, the following shall be provided from the same manufacturer.
1.Poles
2.Lowering Devices
3.Luminaires 4) Anchor Bolts
5.Portable Power Unit The Contractor will be responsible for all power costs including deposits, customer charges, connection cost, etc. associated w ith roadway lighting system. The Contractor shall provide all electrical power required for construction, te sts, satisfactory performance period(s), and usage up to and including the day of the final inspection of the system. Beginning on the day after the final inspection all power and related cost will be paid by the Department. The Department may assume power cost prior to the final inspection if the requirements of Subsection 681.02.8 are met. All lamps shall be from the same manufacturer.
681.02.4 Corrosion Protection. It is the intent of these specifications to have all joints,
connections, etc. completely water and moisture tight.
681.02.5 Coordination of Existing Utilities. It shall be the responsibility of the
Contractor to coordinate work near all existing utilities, both overhead and underground, and to verify utility locations with the various utilities companies prior to commencing any work. Failure to do this shall not relieve th e Contractor of any responsibility and will not be justification for requesting additional mone y from the Department due to damage of any of these utility lines. 681.02.6--Removal of Salvaged Material and Debris. It shall be the responsibility of the Contractor to have all salvaged materials, debris, etc. resulting from the Contractor’s operations completely removed from the project site continually during construction.
681.02.7 Initial Power Cost. The Contractor will make all application and contacts
necessary to obtain power from the local utility company. All costs relating to obtaining, providing and using electrical power during the entire life of the contract will be absorbed by the Contractor, with exception noted in Subsection 681.02.8.
681.02.8 Operation of the System. After the final electrical inspection is completed and
all noted deficiencies have been corrected, th e system may be placed in operation at the request of the Engineer. This shall be accomplished before the complete removal of any temporary lighting system. When the system is placed into operation at the request of the Engineer, the Department will begin assuming all power costs. The Contractor will submit to the Department original bill(s) receive d from the Utility Company after the day the Department assumes the power cost. The Department will pay for only the cost of power used during and after that billing period. The Contractor will continue to warrant and maintain the system up to and including the day of final inspection. The date the system is placed in operation at th e request of the Engineer, shall be considered the commencement of the warranty period, otherwise material warranties will be in accordance with Subs ection 681.02.2.
681.03 Codes and Standards. The Contractor shall strictly comply with the latest edition
of the National Electrical Code, Federal, State or local codes having jurisdiction and shall notify the Engineer of any conflict between any of these codes and the plans and/or specifications before bid date or correct sa me at no additional cost to the State. The following Codes shall be complied with in each and every respect as though fully written herein:
1.Latest Edition - National Electrical Code
2.Latest Edition - National Electrical Safety Code
3.AASHTO Requirements, Latest Edition, thereof
681.04 Basic Materials and Methods. The Contractor shall submit to the Engineer eight
8.copies of submittal data for all electrical materials and equipment proposed for use not later than forty-five (45) days prior to beginning any lighting work. Refer to Subsection 105.01 of the Standard Specifications for explanation of the Engineer's authority with respect to materials furnished. Before purchasing any equipment, the following materials shall be submitted to the Engineer for approval: Eight (8) copies of shop plans, computerized lighting layouts, test reports, design calculations showing overall dimensions, bus sizes, bussing diagrams, lug sizes, equipment rating, lighting levels on the roadway and all other pertinent information for the following items:
1.Lighting Controller 2) Wire and Cable
3.Conduit, Fittings and Pull Boxes
4.Luminaires 5) Wiring devices
6.Lamps
7.Poles
8.Lowering devices
9.Portable electric power unit 10) Breakaway bases
11.Ground Rods
12.Safety Switches 13) Hardware
14.Miscellaneous items as shown on the plans and/or stated herein The Contractor shall provide manufacturer's in-use history data on the following items:
1.Luminaires 2) Poles
3.Lowering devices
4.Lowering devices - power unit Shop plans for poles and breakaway devices shall include conformance certification that the device meets or exceeds the latest AASHTO standards. Information must also include all bolt torque requirements for anchor bolts and breakaway device bolts. This data shall include a minimum of two (2) recently completed installations, a minimum of five (5) installations that have been in-p lace five (5) or more years, and the name and address of the owner of each installation. The data shall be submitted with shop plans. Reinforcing steel shall comply with Section 711 of the Standard Specifications. Concrete shall comply with Section 804 of the Standard Specifications. SECTION 682 - ELECTRICAL DISTRIBUTION SYSTEM
682.01 Description . In additional to the requirements set forth in Section 681, the
electrical distribution system generally cons ists of the secondary electrical service, grounding and bonding system, secondary distribution and secondary power controller. The secondary electrical service shall be 480 volts, 1 phase, 3-wire, 60 HZ, unless indicated otherwise on the plans. The overhead service en trance shall have five (5) feet of tail-wire extension from the service entrance cap for connection to the Utility Company's overhead transformer service facilities. An underground service entrance shall consist of conduit and wire placed, after coordination with the serving utility, in a manner to connect the secondary power controller with the ground mounted transformer. The system will be metered as per serving utility company's requirements. Bonding and grounding of all electrical servi ce equipment enclosures and ground terminals shall be as shown on the plans and/or in accordance with Article 250 of the National Electrical Code. The secondary distribution shall consist of furnishing, installing, erecting and laying electrical branch circuits. All branch circuits shall be buried underground except where shown otherwise on the plans. Branch circuits shall consist of conduit, conductors, connectors, and all hardware necessary to complete the work. Pull boxes and junction boxes may be both underground and/or structure mounted. The secondary power controller shall consist of a lighting controller for control of roadway lighting, enclosure, conduit with fittings, wire, devices, ground rods, photocell, and miscellaneous hardware. The controller shall have a dead front behind outer doors with only breaker handles, hand-off automatic sel ector switch and receptacle exposed. All controllers shall be labeled with a phenolic en graved label having 1/4-inch white letters on a black background. Example: "SPC#l".
682.02 Materials .
682.02.1 Secondary Distribution . The materials used in this construction shall meet the
requirements of Subsection 723.02.
682.02.2 Secondary Power Controller . The materials used in this construction shall
meet the requirements of Subsection 723.03.
682.03 Construction Requirements.
Source: Mississippi Standard Specifications for Road and Bridge Construction, 2017 Edition. Pages 703–708 of 1,113.