Section 722 Section 722 The manufacturer shall warrant y the LED module for a minimum of five (5) years. The LED modules shall be replaced if the module fails to function as intended due to workmanship or material def ects or if the module exhibits luminous intensities less than the minimum specified values within the first five (5) years from the date of delivery.
722.14.4 Pedestrian Signal Heads - Optically Programmed . Optically programmed
pedestrian signal heads shall, in addition to the requirements prescribed in Subsection
722.14 3, be constructed, programmed, and operable as to limit the visibility of the
indication exclusively to the area where it is desirable that the indication be seen. This shall be accomplished with a built-in High Resolution Optical System designed for the purpose and is not to be accomplished by an arrangement of hood s, louvers or other external means.
722.14.5 Turn-Signal Sign . The turn-signal signs, as indicated on the plans, shall
conform to the applicable requirements of Section 631.
722.14.6 Tether Cable . Tether cable attached to the bottom of the signal head shall
conform to the requirements of Subsection 722.04 and shall be the size shown on the plans. Tether cable clamps shall be designed such that the clamp will break away without damage to the signal head when the teth er cable is hit by a vehicle.
722.14.7 Back Plate . Back plates shall be required on all new traffic signal heads. Back
plates shall be one-piece vacuum formed construction and meet the requirements of Subsection 722.14.1.5.
722.14.8 Audible Pedestrian Signals. All pedestrian signals shall provide audible
pedestrian indications. Audible pedestrian signals shall provide a “Cuckoo” output (north/south) with a duration 0.6 seconds ±20%, Frequency 1,100 Hz ±20%, and Frequency Deviation +120 Hz ±20% and “Peep-Peep” output (east/west) with a duration 0.2 seconds ±20%, Frequency 2,800 Hz ±20%, Frequency Deviation -800 Hz ±20%. The audible pedestrian signal shall operate at 115 Volts AC (±22%) at 60Hz, 3 Watts. The output shall be 90dB @ 1 watt/1 meter. The audible pedestrian signal shall operate within a humidity range of 5% to 95% relative humidity within a temperature range of -35°F to +165°F. Prior to assembly, the audible pedestrian signal shall be painted with one (1) coat of primer and two (2) coats of enamel. Color shall be bl ack or federal yellow as directed by the plans or the Engineer. SECTION 723 - MATERIALS FOR ROADWAY LIGHTING INSTALLATION
723.01 General . Acceptance of all material in this Section is subject to Subsections
106.01 and 106.04 entitled "Source of Supply and Quality Requirements" and
"Certification of Compliance," respectively.
723.02 Secondary Distribution.
723.02.1 Raceways, Conduit and Fittings. All branch circuits shall be in Schedule 40
polyvinyl chloride (PVC) or high-density polyethylene (HDPE) conduit unless specifically shown or noted otherwise on the plans, or stated otherwise in these specifications. Conduit exposed on service poles and within five (5) feet of any pole foundation or terminating point shall be galvanized rigid (GRC) heavy wall conduit. Under roadways, or where conduit is jacked or bored, use Schedule 80 PVC or HDPE conduit. When transitioning between differing types of conduit, the correct coupling must be used; i.e. GRC to PVC, PVC to HDPE, etc. These couplings shall be approved prior to their use on the project. In outdoor structure mounted exposed locations, except as noted on the plans, galvanized or sherardized rigid steel conduit shall be used. At underground entrance or exit locations, all rigid metal conduits in contact with earth shall be polyvinyl, polyethylene, or asphalt paint coated with three (3) coats, unless shown otherwise on the plans.
723.02.2 Conductors. Conductors shall be standard annealed copper rated 600 volts with
mechanical strength, insulation, and current car rying capacity adequate for the particular conditions under which they are used and in accordance with th e following schedule:
a.In all locations, types "THW" or "THWN" shall be used unless indicated otherwise on the plans and/or in the specifications.
b.In unwired fixtures where required by National Electrical Code (NEC), approved heat resistant wire shall be used. This wire shall be sized for current, voltage, and temperature at which fixture operates a nd in accordance with the latest edition of the NEC.
c.All conductors entering the self-contained ballast compartment of gaseous vapor discharge fixtures shall be rated 600 volts, silicone rubber, fixture wire, #10 AWG, stranded copper conductor, silicon e rubber insulation, glass braid, rated conductor temperat ure of 200°C. Wire sized #8 AWG and larger consisting of the stranded type shall have Class B stranding. Wire sized #10 AWG and smaller shall be of the solid type. The minimum wire size allowed on any project , with exceptions as noted on the plans or as stated in the specifications, will be #12 AWG. 723.02.3--Pull Boxes and Junction Boxes. Pull boxes shall be of the types specified on the plans. The number and location of pull b oxes shall comply with the requirements of the NEC. Pull boxes shall be used to limit the strain while pulling conductors and splices will not be allowed. Junction boxes shall be of the type specified on the plans. Splices will be allowed in junction boxes. Junction boxes shall comply with the applicable requirements of the NEC. All items required by codes, such as grounds, ground rods, etc., shall be supplied and installed as part of the box and will be included as part of the cost of the box. Ground mounted boxes shall have tops that are reinforced and rated H-20 for vehicular traffic. Tops shall have the word “LIGHTIN G” molded, etched, or made a permanent part of the box top. Where shown on the plans a concrete collar or pad shall be constructed around the box. The dimensions of the concrete shall be specified in the plans. When the box falls on a slope it, and the pad, will be constructed to conform to the contours of the slope. Site grading and other items will be included in the cost of the box.
723.03 Secondary Power Controller.
723.03.1 Lighti ng Controller. The lighting controller shall be factory assembled and
contain the following items: one contactor, one hand-off-automatic selector switch, fused control circuit transformer, lightning arrestor, branch circuit breakers, a NEMA 3R enclosure, one photoelectric control and a main breaker. Details and schedules are shown on the plans. All breakers shall be labeled as to circuit served with a phenolic engraved label having 1/4-inch white letters on a black background. 723.03.1.1--Contactor. The contactor shall have a continuously rated 120-volt coil that is encapsulated. The contactor shall switch a load at 480 volts and shall have a minimum of 2 poles rated as per the plans. Auxiliary arcing contacts are not permitted. Power contacts shall be totally enclosed and of silver-cadmium-oxide. The contactor shall be in accordance with U.L. 508 and NEMA ICS 2, and rated for 600 volts maximum.
723.03.1 2--Main Breaker. The main breaker shall be a molded case circuit breaker rated
at the amperage shown on the plans. Interrupting ratings shall be 22,000 amperes R.M.S. symmetrical. The breaker shall have an over-center trip-free toggle type operating mechanism with quick-make, quick-break ac tion and the switch is "ON" "OFF.” The breaker handle shall assume a center position when tripped, with a provision for mechanically tripping the breaker built into the cover. The breaker shall be calibrated for operation at 40°C.
723.03.1 3--Hand-Off-Automatic Selector Switch. The H-O-A switch shall be a heavy
duty, three position, maintained contact selector switch with ratings as follows: 7200 VA make 720 VA break 120 - 600 V.A.C.
723.03.1 4--Cont rol Transformer. Control transformer shall have a 480 volt primary and
120 volt secondary, with a fused secondary. The volt-ampere rating shall be a minimum of 500 VA above contactor requirements for other loads.
723.03.1 5--Ligh tning Arrester. Arrester shall be a low impulse spark over and high
discharge - current capacity type.
723.03.1 6--Branch Circuit Breakers. Branch circuit breakers shall be molded case
breakers, U.L. listed and shall meet NE MA Standard No. ABl-1975, and Federal Specification No. W-C-375B/GEN. The amperage ratings shall be as scheduled on the plans. Interrupting ratings shall be 22,000 amps RMS symmetrical. Breakers shall have over-center, trip-free, toggle-type operating mechanisms with quick- make, quick-break action and positive handle indication. All 2-pole breakers shall be common trip. Each breaker shall have a perman ent trip unit containing individual thermal and magnetic trip elements in each pole. Ci rcuit breaker handles shall assume a center position when tripped, with a provision for mechanically tripping the breaker built into the cover. Breakers shall be calibrated for op eration in an ambient temperature of 40°C. Breaker lugs shall be removable U.L. listed fo r copper only, and U.L. listed for installation of mechanical screw type lugs.
723.03.1 7--Copper Busing. Busing shall be copper with tin plating. Rating shall be 100
ampere or 200 ampere as scheduled on the plans.
723.03.1 8--Enclosure. The enclosure shall be NEMA 3R of minimum #14 gauge steel
with a hinged door. One (1) hasp with padlock and a minimum of two (2) bolts to secure top and bottom of door shall be provided. Thr ee (3) sets of keys shall be provided with each padlock. 723.03.2--Conduit. All conduit and fittings shall be rigid galvanized steel, sized as per the plans or NEC.
723.03.3 Ground Rods. All ground rods shall be copper-coated steel 3/4-in by 10 feet
installed as shown on the plans. Ground wire connections shall be with exothermic welds.
723.03.4 Photocells. Photocell shall have a dust and watertight housing, and shall be
rated for 120 volt operation. Contacts shall be rated at 1800 V.A. A time delay of a minimum of 15 seconds shall be built-in to pr event false switching. Turn-on shall be at approximately 1 to 3 foot-candles. Turn-off shall be at 1.5 to 9 foot-candles. Operational temperature range shall be -50 to +60°C. Fa ilsafe protection is required in the closed position. Mounting shall be as per the plans. Built-in surge protection shall provide a margin of protection of 60°C spark over -1500 V RMS. Impulse spark over voltage discharge is 10,000 amperes, 1½ x 40 M.S. wave at 2000 volts. Where required on the plans that a photocell control Federal Aviation Administration (FAA) obstruction lights that photocell shall meet current FAA requirements.
723.03.5 Miscellaneous Hardware. All miscellaneous hardware shall be galvanized per
ASTM A123. Care shall be taken to reduce corrosion as much as possible. After drilling or cutting of parts or any operation that may damage anti- corrosion paint or coatings, the Contractor shall clean and apply anti-corrosion paint or co ating. This shall be done at no additional cost to the Department.
723.03.6 Service Poles. Service poles shall be Southern Yellow Pine meeting the
requirements of the latest edition of ANSI-05.1, "American National Standard for Wood Poles - Specifications and Dimensions," for Southern pine poles having a fiber stress of 8,000 psi. The poles shall be free of all defect s such as holes, splits, sap rot, etc. Maximum deviation from straight poles shall be 1/2 inch for each six foot of length from surface of ground to top of pole when a string is stretched along its bow. Poles shall be approximately thirty (30) feet in length. All poles shall be inspected and treated in a ccordance with applicable requirements of the American Wood Protection Asso ciation (AWPA) and shall conform to Subsection 718.03 of the Standard Specifications. 723.03.7--Wiring. Wiring shall be copper conductors with THWN or THW type insulation. All wiring shall be tie wrapped and neatly trained in the enclosure.
723.04 High Mast Lighting Assembly.
723.04.1 Pole. The pole shall consist of sections of round or multi-sided tapered steel
tubes that telescope together. Minimum yield strength after fabrication shall be 55,000 psi. Designed wind velocity shall be in accordance with the 2013 AASHTO Standard Specifications for Structural Supports for Hi gh Signs, Luminaires an d Traffic Signals to support the number and type luminaires and lowering device required on the different assembly types. Design wind velocities shall be as follows: 140 MPH --- Hancock, Harrison & Jackson Counties 130 MPH --- Pearl River, Stone, & George Counties 120 MPH --- Lamar, Forrest, Perry & Greene Counties 110 MPH --- Pike, Walthall, Marion, Jeff erson Davis, Covington, Jones & Wayne Counties 100 MPH --- Wilkinson, Amite, Adams, Franklin, Lincoln, Lawrence, Simpson, Smith, Jasper & Clarke Counties 90 MPH --- All counties north of and including Jefferson, Copiah, Rankin, Scott, Newton, & Lauderdale Ice Loading shall be considered in the desi gn for structures in all counties above and including Washington, Humphreys, Holmes, Attala, Winston, & Noxubee. The gust factor shall be a minimum of 1.14. Recommended design life shall be 50 years. For fatigue design high mast poles will be designed as fatigue category II. The pole shall be of ASTM A 572 or A 595, Grade 60 steel, hot dipped galvanized in accordance with ASTM A 123. All factory welds shall be in accordance with ANSI/AWS Stru ctural Welding Code Dl.l sections 1-8, and AASHTO requirements. The pole shall have a minimum 10-inch wide by 20-in high oval handhole. The opening shall be reinforced to replace the equivalent strength lost by the hole. A hinged and gasketed handhole cover shall be provided, secured by four (4) stainless steel bolts, with three (3) hinges having stainless steel hinge pins. The cover shall be lockable with a hasp and a padlock provided and installed on each cover. The padlocks shall be keyed the same as the controller enclosures.
723.04.2 Lowering Device.
723.04.2 1--General. The lowering device shall be capable of lowering the luminaires to
approximately five (5) feet from ground level for maintenance purposes. The lowering device shall consist of the following assemblies:
a.Head frame assembly
b.Luminaire mounting ring assembly
c.Winch assembly
d.Hoisting cable assembly
723.04.2 2--Head Frame Assembly. The head frame assembly shall be galvanized steel
with a weather tight spun aluminum cover. A roller or pulley assembly shall be provided for power cord travel. Three (3) positive latches shall be provided to support the luminaire ring when the lowering device is not in operation. Reflecting flags, visible from the ground, shall indicate the locking and unlocking of each of the latches. All moving parts of the latches shall be serviceable from the ground. Moving parts shall not be impaired by formation of ice. Latches shall be cast aluminum alloy conforming to ASTM B 221 or A 36 steel. Latch pins shall be ASTM A 276 stainless steel.
723.04.2 3--Luminaire Mo unting Ring Assembly. The ring assembly shall be hot dipped
galvanized steel channel, typi cally 6-inch by 2-inch, 7-gauge, with the proper number of 2-inch galvanized steel pipe luminaire mounting arms. The ring assembly shall be prewired with type ST distribution wiring, insulation rated at minimum 105°C. A cast aluminum or stainless steel, hinged cover, weather tight junction box shall be provided with a prewired 600-volt terminal block and a weatherproof twist lock power inlet, for testing of luminaires at ground level. This box shall be aligned with the access handhole cover. The ring assembly shall be equipped with roller contact spring loaded guide arms to stabilize the ring on the pole while lowering device is in operation.
723.04.2 4--Winch Assembly. The winch shall be rated for 1500 pounds with a worm
gear reduction minimum 30 to 1 ratio, and an in tegral friction drag brake to prevent free spooling. The winch shall be rated for intermittent motor operation or for hand crank operation. The 1/4-inch stainless steel hoisting cable shall be prewound on the winch. The winch drum shall be secured at both ends to prevent tilting.
723.04.2 5--Hoisting Cable Assembly. The hoisting cable shall be a minimum of 1/4-
inch, 7 x 19 stainless steel. The three (3) su spension cables shall be a minimum of 3/16- inch stainless steel. The cable terminator shall be hot dipped galvanized. Power cable shall be Type SO and of a length and size as shown on the plans.
723.04.3 Luminaire.
723.04.3 1--General. The luminaire shall be of the type and size as shown on the plans,
normally an enclosed ventilated type with a one piece spun specular aluminum reflector, finished with an alzak or equivalent process. The reflector shall be encased in a spun and sealed aluminum cover or ribbed to provide additional structural integrity.
723.04.3 2--Ballast. The ballast shall be enclosed in a cast aluminum weather tight
housing. Connections shall be made through a quick disconnect plug. The ballast shall be fused with inline fuses sized as per manufac turer's recommendations. The ballast shall be copper wound. Electrical characteristics shall cl osely conform to the following: Ballast Type ........................................................................................................ Lead Primary Voltage ................................................................................................. 480V Secondary Voltage (open circuit) ....................................................................... 400V Power Factor ................................................................................................ over 90% Input Watts .......................................................................................................... 1100 Wattage Regulation .................................................. ±12% at 10% line volt variation Minimum Ambient Starting Temperature ........................................................... 20°F Operating Line Current ..................................................................................... 2.35A
723.04.3 3--Mounting. The mounting shall be with an adjustable slipfitter for a 2-inch
pipe bracket.
723.04.3 4--Lamp Socket. The lamp socket shall be heavy-duty, nickel-plated, porcelain
enclosed with an integral lamp gripper an d a lamp clamp of insulated stainless steel.
723.04.3 5--Photometrics. The luminaire shall provide an Illuminating Engineering
Society (IES) Type V semi-cutoff distribution or as shown on the plans and shall have an output efficiency of 60% bare lamp lumens. The lamp arc tube shall be optically shielded above 52° from the nadir. The maximum beam candle power for each 1000 lumens shall be a maximum of 200 at 80° vertical Test reports with illumination data for each type distribution shall be provided with luminaire submittals. These reports must be certified, or conducted by an independent testing laboratory.
723.04.4 Anchor Bolts. Anchor bolts shall be steel in accordance with ASTM F 1554,
Grade 105. Minimum yield strength shall be 105,000 psi. Galvanizing shall be in accordance with ASTM A 153. Anchor bo lts shall be of the sizes and number recommended and provided by the pole manufacturer. Each pole shall have a bolt layout template provided by the pole manufacturer for proper bolt installation. The Contractor shall align the template properly for correct handhole orientation.
723.04.5 Lamps. Lamps for high mast luminaires shall be universal burning 1000-watt
high pressure sodium. The lamp shall be mogul base and T-18 bulb designation. The lamp shall meet or exceed the following criteria: Mean Lumens ------------------------------------------------------------------------ 126,000 Initial Lumens ------------------------------------------------------------------------ 140,000 Rated Average Life at 10 hr/start, hours -------------------------------------------- 24,000
723.04.6 Miscellaneous. Ground rods shall be 3/4-inch by ten (10) feet, copper coated
steel. Lightning rods, cable, bolts and other items making up the high mast lighting assembly shall be provided as per the plans and manufacturer's recommendations. All incidental items necessary for a complete working system shall be provided whether or not mentioned in these specifications.
723.05 Low Mast Lighting Assembly.
723.05.1 Poles. Poles shall be formed from a single sheet of hot rolled weldable grade
steel, galvanized in accordance with ASTM A 123. Unless otherwise specified in the plans, the poles shall be forty (40) feet in length. Unless otherwise noted on the plans, poles shall be made from steel meeting the requirements of ASTM A 572 Grade 55, or A 595 Grade A. Minimum yield strength shall be 48,000 psi after fabrication. Designed wind velocity shall be in accordance with the 2013 AASHTO Standard Specifications fo r Structural Supports for High Signs, Luminaires and Traffic Signals to support the number and type luminaires and lowering device required on the different assembly types. Design wind velocities shall be as follows: 140 MPH --------- Hancock, Harrison & Jackson Counties 130 MPH --------- Pearl River, Stone, & George Counties 120 MPH --------- Lamar, Forrest, Perry & Greene Counties 110 MPH --------- Pike, Walthall, Marion, Jefferson Davis, Covington, Jones & Wayne Counties 100 MPH --------- Wilkinson, Amite, Adams, Franklin, Lincoln, Lawrence, Simpson, Smith, Jasper & Clarke Counties 90 MPH ----------- All counties north of and including Jefferson, Copiah, Rankin, Scott, Newton, & Lauderdale Ice Loading shall be considered in all counties above and including Washington, Humphreys, Holmes, Attala, Winston, & Noxubee. The gust factor shall be a minimum of 1.14. Recommended design life for poles shorter than 50 feet shall be 25 years. For fatigue design low mast poles is not required. Poles shall have a mast arm as required and sp ecified on the plans for luminaire mast arm mounting. Post top mounted lumi naires will require a tenon mount. Poles shall have a constant taper of 0.14 inch nominal per foot. All poles shall be equipped with a breakaway device that conforms to the latest AASHTO and FHWA requirements that have been approved by same. The Contractor shall submit a manufacturer's certification with the pole sh op plans stating that the device meets, or exceeds, these standards. Bridge-mounted poles shall be equipped with standard anchor bases for mounting on bridge brackets. Poles shall have a 4-inch by 6½-inch handhole with bolted cover. Arm lengths shall be as specified on the plans.
723.05.2 Luminaire. Low mast luminaires shall be post top mounted or mast arm
mounted with 150-watt, 250-watt or 400 watt high pressure sodium lamps or as required on the plans. The housing shall be die cast aluminum, joined with a lower housing by a stainless steel hinge, and provided with a trigger latch. The finish shall be gray baked-on enamel. The reflector shall be polished anodic surface aluminum. The refractor shall be prismatic borosilicate glass. Photometrics shall conform to IES Type III, medium, semi-cutoff or as shown on the plans. Seals and gaskets shall be provided to prevent the entry of contaminants. The ballast shall be prewired and closely conform to the following criteria: 400-watt 250-watt 150-watt Primary Voltage 480 V 480 V 480 V Operating Current 1.0 A 0.63 A 0.42 A Secondary Voltage, open circuit 215 V 222 V 128 V Input Watts 458 W 295 W 188 W Power Factor Over 95% Over 95% Over 95% Lamp Wattage Regulation @ ±10% Li ne Voltage Variation ........................... +10% Minimum Ambient Starting Temperature ........................................................ -20°F The ballast shall also have a quick disconnect. The slipfitter shall accept 1¼ to 2-inch outer diameter arms. Maximum projected area shall be 1.5 square feet.
723.05.3 Anchor Bolts. Anchor bolts shall be made of steel in accordance with ASTM
F 1554, Grade 55. Anchor bolts shall be galvanized as per ASTM A 123. Minimum yield strength shall be 50,000 psi and "L" shaped. Anchor bolts shall be provided for each pole with two (2) hex nuts and washers per bolt. A bolt layout template shall be provided by the manufacturer for proper bolt installation. The number of anchor bolts and design yield strength shall be as recommended by the manufacturer.
723.05.4 Lamps. Lamps shall be clear 150-watt, 250-watt or 400-watt high pressure
sodium type that operate in any position. The lamps shall conform to the following: 150-watt 250-watt 400-watt Mean Lumens 14,000 27,500 45,000 Initial Lumens 16,000 24,750 50,000 Average Rated Life, hours 24,000 24,000 24,000
723.05.5 Miscellaneous. Wiring, ground rods, bolts and other items shall be provided as
per the plans and manufacturer's recommendatio ns. All items necessary for a complete working lighting assembly shall be provided whether or not mentioned in these specifications. Ground rods shall be 3/4-in ch by ten (10) feet copper coated steel.
723.06 Underpass Lighting Assembly.
723.06.1 Housing. The lens shall be injection molded, U.V. stabilized polycarbonate.
The reflector shall consist of a hydroformed sp ecular alzak main reflector with parabolic and cylindrical surfaces. The unit shall produc e a lighting pattern with a sharp cutoff at 86° above nadir. Photometrics shall be IES, Type III, or as shown on the plans.
723.06.2 Ballast. The ballast shall be a high power factor type CWAA for -30°C starting
and for a 150-watt, high pressure sodium lamp at 480 volts with double fusing. 723.06.3--Conduit Box. The conduit box shall consist of cast aluminum housing with gasketing, bolted to a flat aluminum plate.
723.06.4 Finish. The finish shall be a gray polyester powder coating that has been
electrostatically applied and oven cured.
723.07 Light Emitting Diode (LED) Luminaires. LED luminaires shall meet the
following general requirements and any speci al requirements noted on the plans.
723.07.1 Housing. The luminaire housing shall be a low-profile, die-cast aluminum
housing, grey powder-coat finish, minimum 3-mil thickness. The housing shall have wide angular channels that allow for natural removal of dirt and debris. The housing shall have a hinged door with tool-less entry. Lumina ire weight and projected area must be within design loading limits as shown on the plans. The housing shall be UL 8750 and UL 1598 compliant, vibration tested to 3G per ANSI C136.31. The housing must be NRTL listed for wet locations. 723.07.2--Optical Requirements. The luminaire shall have a completely sealed optical system for the luminaire housing and shall have an International Electrotechnical Commission (IEC) International Protection marking (IP) code of 66 or greater. The luminaire shall have a light distribution patte rn at the road surface that has an evenly dispersed appearance and shall provide the Illuminating Engineering Society (IES) pattern as identified on the plans.
723.07.3 Mounting. The luminaire shall have provisions for a 2-bolt slip fitter type
mounting on nominal 2-inch (2 3/8” OD) pipe (arm) brackets. The mounting shall have a clamping assembly with two (2) bolts for securing the assembly to the light pole. There shall be an area on the top of the housing to allow for a level to be used for proper orientation of the luminaire. For a vertical (tenon) bracket, it shall have provisions for a 2- inch (2 3/8” OD) vertical tenon. It sh all attach to the tenon with set screws.
723.07.4 Labeling Marking. Permanent labels must be placed inside the luminaire
indicating NRTL listing. The luminaire shall ha ve an external label per ANSI C136.15. The luminaire shall have an internal label per ANSI C136.22. An internal label or marking with date code of when fixture was manufactured shall be provided.
723.07.5 Electrical. The luminaire shall be rated for operating at ambient temperature
between -40 and +40°C. The luminaire shall use Class I LED drivers and the drivers shall have a minimum power factor of 90%. The luminaire shall have a terminal block for connecting pole wiring to the luminaire. The power supply and other components shall have a quick disconnect wiring harness for ease of maintenance. Drivers and other electrical components must be NRTL listed for wet locations.
723.07.6 Documentation. The following documentation must be available upon request
or submitted for approval: Luminaire specification sheet LED driver specification sheet LM-79 Luminaire photometric report. The vendor must submit LM-79 in-situ test data to confirm thermal operating temperatures of the luminaire LM-80 Lumen maintenance report TM-21 calculations Backlight, Uplight, Glare (BUG) rating of the luminaire Computer generated point by point photometric analysis Written product warranty Independent test lab IES photometric reports including; IES electronic file, IES chromaticity data from an LED Lighting Facts approved testing laboratory Instructions for installation and maintenance.
723.07.7 Chromaticity. The luminaire shall meet the following Chromaticity
requirements: The standard color for the LED Luminaire shall be white. The colors shall conform to the following color regions based on the 1931 CIE chromaticity diagram. Nominal Correlated Color Temperature (CCT) = 4000K ±500K. The luminaire shall have a minimum Color Rendering Index (CRI) of 70. Chromaticity as stated above must be confirmed by an Independent test lab or shown on the LM-79 test report.
723.07.8 Surge Protection. The luminaire shall have a surge protection device (SPD), in
addition to driver’s internal protection, to withstand repetitive noise transients from utility line switching, nearby lightning strikes, and other interference. Documentation shall be provided that shows the following: The SPD will protect the luminaire from common mode transient peak voltages up to 10 kV (minimum) and transient peak currents up to 5 kA (minimum). The SPD conforms to UL 1449, 3 rd Edition, and has been tested in accordance with ANSI/IEEE C62.41.2 Scenario I Location Ca tegory C with modified test levels of 10kV/5kA Combination Wave for Line-Ground, Line-Neutral and Neutral-Ground. The SPD is listed or recognized by a NRTL to UL 1449, 3rd Edition. The SPD component in series with the line will stop current to the fixture in the event of SPD failure.
723.07.9 Rating. The fixture shall be rated for a minimum lamp efficiency of 70% lumen
output at 75,000 hours @ 25°C. 723.07.10--Warranty. The entire luminaire assembly, including material, finish, workmanship, power supply, LED modules and lumen maintenance, shall have a minimum of 5-year warranty from the date of installation. The fixture shall be determined to be defective if greater than 10% of the LEDs fail. A finish warra nty shall include deterioration such as blistering, cracking, peeling, fading, or corrosion defects for a period of five (5) years.
723.08 Portable Electric Power Unit.
723.08.1 General. The unit shall drive the winch through a torque limiter coupling to
prevent excessive force on the system. A back-up shear pin shall be provided set for fifty six (56) pounds maximum. The unit used by the Contractor during construction will not be accepted. The power unit pr ovided to the Department shall be new and unused except for testing to assure proper operation.
723.08.2 Housing. The housing shall be of cast aluminum.
723.08.3 Motor. The motor shall be heavy duty with high temperature windings. The
rotor shall be dynamically balanced to assure vibration free operation. The motor shall operate at 120 volts AC, 60 hertz, with the proper horsepower to operate the lowering device recommended by the manufacturer.
723.08.4 Portable Transformer. The transformer shall be rated 480 volts primary and
120 volts secondary, rated KVA shall be 1.5 times necessary for the operation of the lowering device. The primary shall have a male weatherproof receptacle for acceptance of the pole power cord plug. The secondary shal l have a weatherproof duplex receptacle, one
1.for connection of the power unit, and one (1) for other tools.
723.08.5 Remote Control Unit. The remote control unit shall have twenty (20) feet of
remote cord, with a FORWARD, OFF, REVERS E switch. The switch operation shall be maintained contact type. Momentary contact spring load operation is not acceptable.
723.09 Temporary Lighting System.
723.09.1 Instructions. All exposed conduit shall be rigid galvanized steel. RTV silicon
shall be used on all male threads. All final connections to light fixtures shall be through liquid-tight flexible conduits w ith weathertight connectors.
723.09.2 Conductors. All aerial conductors shall be triplex cable with an ACSR
messenger. The conductor shall be aluminum with seven (7) strands. The messenger shall be the same size as the conductor with 6 to 1 stranding. The insulation shall be cross linked polyethylene, Type "XHHW-2" or "XLP." Conduit installed conductors shall be type "THW" with standard annealed copper rated 600 volts. Direct buried underground feeder or branch circuit shall be Type “UF.” All splices and connections shall be made in accessible boxes, switches, or at weatherheads. Pressure type connectors shall be used. The co nnectors shall be well taped, rated for copper or aluminum
723.09.3 Lighting Assembly Requirements. All lighting assemblies shall be as shown
on the plans. Fixtures shall be complete ly prewired with an integral photocell.
723.09.4 Lamps. Lamps shall be 250 or 400-watt clear high pressure sodium meeting or
exceeding the follo wing criteria: Lamp Life at 10 hours per start, hours ............................................................... 24,000 Mean Lumens for 250-watt ........................................................................... 27 ,000 for 400 watt ............................................................................ 50,000 Burning Positio n ....................................................................... Operat e in any position
723.09.5 Miscellaneous Material. Miscellaneous materials shall be furnished as shown
on the plans, and as specified.
723.09.6 Timber Utility Poles. Timber utility poles shall be Southern Yellow Pine
meeting the requirements of the latest edition of ANSI-05.1, "American National Standard for Wood Poles - Specifications and Dimensions," for Southern Pine poles having a fiber stress of 8,000 psi. The poles shall be free of a ll defects such as holes, splits, sap rot, etc. Maximum deviation from straight poles shall be 1/2” for each six (6) foot of length from surface of ground to top of pole when a string is stretched along its bow. All poles shall be inspected and treated in a ccordance with applicable requirements of the American Wood Protection Asso ciation (AWPA) and shall conform to Subsection 718.03 of the Standard Specifications.
723.09.7 Hardware. All hardware shall be approved for the use and location as shown
on plans.
723.09.8 Safety Switch. All safety switches shall be General Duty 2-pole, 600-Volt, fused, with fuses sized as required, an d in a NEMA 3R enclosure with a lock.
723.09.9 Junction Boxes. All junction boxes shall be cast aluminum. Locations of
junction boxes will be as shown on plans.
Division 800 — Division 800
Division 800 — Bridges and Structures
SECTION 801 - EXCAVATION AND FILL
801.01 Description. Foundation excavation shall include the removal of all material, of
whatever nature, necessary for the construction of foundations and substructures of structures in accordance with the plans or as directed by the Engineer. When shown as a pay item, it shall include the furnishing of all necessary equipment and the construction of all cribs, cofferdams, dewatering, etc. necessary for execution of the work. It shall also include the subsequent removal of cofferdams and cribs and the placement of all necessary backfill as hereinafter specified. It shall also include the disposal of excavated material that is not required for backfill or other specified usage, in a manner and in locations that will not affect the carry ing capacity of the channel or other drainage or be unsightly. Unless a greater area is necessary for constructi on, the bridge site shall be the area defined in Subsection 101.02. Clearing and grubbing shall be in accordance with the provisions of Subsection 201.04. All substructures, where practicable, shall be constructed in open excavation, and where necessary, the excavation shall be shored, bra ced, or protected by co fferdams in accordance with approved methods. When footings can be placed in the dry without the use of cribs or cofferdams, backforms may be omitted with the approval of the Engineer and the entire excavation filled with concrete to the top of the footing. The additional concrete required shall be placed at the expense of the Contractor.
801.02 Materials . Unless designated otherwise, all ma terial used for backfill shall meet
the requirements of Subsection 203.03.8.6.
801.03 Construction Requirements .
801.03.1 Preservat ion of Channel . Unless otherwise specified, no excavation shall be
made outside of cribs, cofferdams, or sheet piling, and the natural stream bed adjacent to the structure shall not be disturbed without permission of the Engineer. If any excavation or dredging is made at the site of the struct ure before cribs or cofferdams are in place, the Contractor shall, without extra compensation and after the foundation base is in place, backfill all such excavation to the original ground surface or river bed with material satisfactory to the Engineer. Material depos ited within the stream area from foundation or other excavation or from the filling of cofferdams shall be removed and the stream area freed from obstruction thereby.
801.03.2 Depth of Footings . The elevations shown on the plans for bottoms of footings
shall be considered as approximate, and the Engineer may order in writing changes in dimensions or elevations necessary for a satisfactory foundation.
801.03.3 Preparation of Foundations for Footings. All rock or other hard foundation
material shall be cut to a firm surface, either level, stepped, or roughened as may be directed by the Engineer, and then cleaned of all loose material. All seams shall be cleaned out and filled with concrete, mortar, or grout.
Source: Mississippi Standard Specifications for Road and Bridge Construction, 2017 Edition. Pages 897–909 of 1,113.