934 Two sets of complete wiring diagrams shall be provided showing the physical layout of all relays and other components of the preemption unit.
715.42.7 4.1 -Implementation : When included in the plans, the priority control system
shall provide advance signal control p er intersection approach. The systems consist of an emitter, detector, confirmation light and a card rack mounted signal interface unit. Priority control shall be measured as a complete unit in place per intersection or control location. This item shall consist of a complete electrical mechanism and all intrinsic items necessary for controlling preemptive functions at each intersection. When accepted as complete, the quantities determined and as provided below will be paid for at the contract unit price compensation for furnishing all materials and doing all work prescribed in a workmanlike manner and for furnishing all labor, equipment, tools and incidentals to complete the necessary work per intersection. The emitter shall be mounted on the priority v ehicle and transmit a shaped, optical pattern of infrared light to a detector at the prioritized intersection approach. The interface unit will then input a call to the controller for a pre -programmed preemption routine. The transmit/receive distance for each intersection approach must be user programmable and will be the responsibility of the Division of Highways to determine and set. A means of adjustment for the transmit/receive distance per approach must be provided with the system. See I/S phasing and estimate of quantities.
715.42.7 4.1.1 -Optical Emitter : The Optical Emitter (OE) must be a single pulsed
infrared light source capable of delivering sufficient optical energy to activate compatible
O.C.S. detectors up to 2500 feet. Emissions must b e precisely timed pulses of high intensity light. The O.E. must be available in 10HZ and 14HZ (+/ - 1 HZ) modules for use as low and high priority vehicles. The range of activation of preemption at signalized intersections must be a function of the P.C.S. hardware.
715.42.7 4.1.2 -Detector : The Detector unit must be responsive to the optical emitter
at a distance of up to 2500 feet. The unit must be totally compatible with all features of the emitter and be capable of priority distinction without the ad dition of special detectors. The Detector shall have a minimum reception angle of 35 degrees.
715.42.7 4.1.3 -Card Rack Mounted Interface Unit : Each interface card must
provide a two (2) to four (4) channels per card for a total of (8) eight pre -empt ou tputs for use by the local traffic signal controller.
715.42.7 4.1.4 -Control Equipment : Preemption control must be applicable to NEMA
TS1 standards.
715.42.7 4.1.5 -System Requirements : Preemption control equipment must be
compatible and completely in terchangeable with existing preemption systems (as it relates to these special revisions and the WVDOH APL). All P.C.S. equipment for this system must be on the WVDOH Approved Products List (APL). Fixed card racks with integral power supplies and capacit ies to accommodate required P.C.S. features must be in the controller cabinet with priority control. 935 715.42.7.4.1.6 -Warranty: all electronic components except the optical emitter strobe and confirmation light, shall be warranted for a minimum of three (3 ) years.
715.42.7 4.1.7 -Codes and Basis of Payment : When accepted as complete, the
quantities determined as provided above will be paid for at the contract unit price bid for the items listed below which the prices and payment shall be full compensation for furnishing all materials and doing all work prescribed in a workmanlike manner and for furnishing all labor, equipment, tools and incidentals necessary to complete the work. Unit bid prices shall be submitted as indicated on the plans per code unit. (OE) – OPTICAL EMITTER (D1) – DETECTOR – one detector per intersection (D2) – DETECTOR – two detector per intersection (D3) – DETECTOR – three detector per intersection (D4) – DETECTOR – four detector per intersection
715.42.7 5-Electronic Time Switch: The purpose of this subsection is to describe the
seven -day programmable time switch to be used in pretimed and traffic -actuated signal controllers. The time switch shall be microprocessor -based and capable of SPDT switching of at least three (3) independent five -amp loads at 120 VAC. The entire unit shall be solid state and capable of at least 15 on or off time sets per day or week. Automatic battery backup providing a minimum of 48 hours of memory protection shall also be provid ed. The timer shall be entirely self -contained in a unit that can be readily mounted inside a signal controller cabinet.
715.42.7 6-Electronic Time Switch (Type DST): Specification requirements for this
time switch are the same as outlined in subsectio n 715.42.7.5, with the exception that automatic Daylight Savings Time compensation can be programmed into this unit for an indefinite future period.
715.42.8 Cabinets: The following are minimum design requirements for a TS2 Type 1
traffic control cabin et assembly. As a minimum, the cabinet assembly shall meet all applicable sections of the NEMA Standard publication No.TS2 -2003 or most recent version. Where differences occur, this specification shall govern.
715.42.8 1 -Cabinet Design and Construction: The cabinet shall be constructed from
type 5052 -H32 aluminum with a minimum thickness of 0.090 to 0.125 inches. The cabinet shall be designed and manufactured with materials that will allow rigid mounting, whet her intended for pole, base or pedestal mounting. The cabinet must not flex on its mount. A rain channel shall be incorporated into the design of the main door opening to prevent liquids from entering the enclosure. The cabinet door opening must be a mi nimum of 80 percent (80%) of the front surface of the cabinet. A stiffener plate shall be welded across the inside of the main door to prevent flexing. Top of the cabinet shall incorporate a slope toward the rear to prevent rain accumulation. Unless oth erwise specified, the cabinet shall be supplied with a natural aluminum finish. Sufficient care shall be taken in handling to ensure that scratches are minimized. All surfaces shall be free from weld flash. Welds shall be smooth, neatly formed, free from cracks, blowholes and other irregularities. All sharp edges shall be ground smooth. Where 936 painted cabinets are specified, the exterior shall be degreased and primed with a spray applied iron phosphate coat - equivalent to a four -stage iron phosphate coat prior to painting. The final coat shall consist of a powder coat paint (TGIC or equivalent) applied with a minimum thickness of 2 mils. All seams that are not welded shall be sealed with RTV sealant or equivalent material on the interior of the cabinet. All cabinets shall be supplied with a minimum of two (2) removable shelves manufactured from 5052 -H32aluminum. Shelves shall be a minimum of ten ( 10) inches deep. Shelves to be designed to accommodate a minimum 50 pound loading. The shelves shall have horizontal slots at the rear and vertical slots at the front of the turned down side flange. The shelves shall be installed securely by first inserting the rear edge of the shelf on the cabinet rear sidewall mounting studs, then lowering the shelf on the front sidewall mounting studs. The front edge of the shelf shall have holes punched every six (6) inches to accommodate tie -wrapping of cables/harnesses. A minimum of two
2.sets of vertical "C" channels shall be mounted on each interior wall of the ca binet for the purpose of mounting the cabinet components. The channels shall accommodate spring mounted nuts or studs. All mounting rails shall extend to within 7 inches of the top and bottom of the cabinet. Sidewall rail spacing shall be no more than nine (9.0) inches center - to-center. Rear wall rail spacing shall be nineteen ( 19.0) inches center -to-center. The main door and police door -in-door shall close against a weatherproof and dust - proof, closed -cell neoprene gasket seal. The gasket material for the main door shall be a minimum of 0.250 inches thick by 1.00 inch wide. The gasket material for the police door shall be a minimum of 0.250 inches thick by 0.500 inches wide. The gaskets shall be permanently bonded to the cabinet. The cabinet shall b e equipped with a louvered air entrance. The air inlet shall be large enough to allow sufficient air flow per the rated fan capacity. Louvers must satisfy the NEMA rod entry test for 3R ventilated enclosures. A non-corrosive, vermin - and insect -proof, r emovable air filter shall be secured to the air entrance. The filter shall fit snugly against the cabinet door wall. The roof of the cabinet shall incorporate an exhaust plenum with a vent screen. Perforations in the vent screen shall not exceed 0.125 in ches in diameter. The main door cabinet shall be equipped with a three -point latching mechanism. The handle on the main door of the cabinet shall be manufactured from cast aluminum or stainless steel. The handle shall include a hasp for the attachment o f an optional padlock. The cabinet door handle shall rotate counter -clockwise to open. The handle shall not extend beyond the perimeter of the main door at any time. The lock assembly shall be positioned so that the handle shall not cause any interferenc e with the key when opening the cabinet door. The main door hinge shall be a one -piece, continuous piano hinge with a stainless steel pin running the entire length of the door. The hinge shall be attached in such a manner that no rivets or bolts are expo sed. The main door shall include a mechanism capable of holding the door open at approximately 90, and/or (165 or 180) degrees under windy conditions. The main door shall be equipped with a standard Corbin #2 or exact equivalent. Minimum of two keys sha ll be supplied. The police door -in-door shall be provided with a treasury type lock Corbin No. R357SGS or exact equivalent and have a minimum of one key. All base mounted cabinets require anchor bolts to properly secure the cabinet to its base. The cabin et flange for securing the anchor bolts shall not protrude outward from the bottom of the cabinet. Four anchor bolts shall be required for proper installation. Each cabinet shall be of sufficient size to accommodate all equipment. At a minimum, 937 the cabinet sizes are as follows: Pole Mounted Cabinets Ground Mounted Cabinets Height - 50 Inches Height – 55 Inches Width – 36 Inches Width – 44 Inches Depth – 17 Inches Depth – 26 Inches Dimensions shall not exceed these minimum dimensions by more than 2 inches. Main door shall incorporate a shroud to cover the filtered louvered openings as appropriate for the design. The assembly is secured on the interior of the door over the filtered Louvers. The Shroud is louvered downward and matches the door louvers. All enclosures must be constructed, approved and marked in accordance with the requirements for Type 1 Industrial Control Panel Enclosures contained in UL 508A, the Standard for Industrial Control Panels. Enclosure must meet NEMA 3R rating r equirements and be marked with UL approval sticker.
715.42.8 2 -Terminals and Facilities/Main panel Design and Construction: The
main panel shall be constructed from 5052 -H32 brushed aluminum of 0.125 inches minimum thickness and installed so as to minim ize flexing when plug -in components are installed. All main panels are provided with a mounting mechanism which allows easy access to all wiring on the rear of the panel without the removal of any cabinet shelves. Lowering of the main panel can be accompl ished. Complete removal can be accomplished by the use of simple hand tools. The terminals and facilities shall be available as a minimum in the following configuration: • Sixteen load switch sockets, six flash transfer relay sockets, one flasher socket, 2-BIU sockets (expandable to 4), one 16 -channel detector rack (expandable to
4.with one BIU, and one Type -16 MMU. All load switch and flash transfer relay socket reference designators shall be silk -screen labeled on the front and rear of the main panel to match drawing designations. Socket pins shall be marked for reference on the rear of the panel. A maximum of eight load switch sockets may be positioned horizontally or stacked in two rows on the main panel. Main panels requiring more than eight load swit ch sockets shall be mounted in one horizontal or two vertical rows. All load switches shall be supported by a bracket, extending at least half the length of the load switch. The 16 load switch position main panels shall have all field wires contained on two rows of horizontally mounted terminal blocks. The upper row shall be wired for the pedestrian and overlap field terminations. The lower row shall be reserved for phase one through phase eight vehicle field terminations. All field output circuits shall be terminated on a non -fused barrier type terminal block with a minimum rating of 10 amps. All field input/output (I/O) terminals shall be identified by permanent alphanumerical labels. All labels shall use standard nomenclature per the NEMA TS2 specific ation. It shall be possible to flash either the yellow or red indication on any vehicle movement and to change from one color indication to the other by use of a screwdriver. Field terminal blocks shall be wired to use four positions per vehicle or overl ap phase (green, yellow, and red, flash). It shall not be necessary to de -buss field terminal blocks for flash programming. 938 The main panel shall contain at least one flasher socket (silk screen labeled) capable of operating a 15 -amp, 2 -pole, NEMA solid -state flasher. The flasher shall be supported by a bracket, extending at least half its length. One RC network shall be wired in parallel with each group of three flash -transfer relays and any other relay coils. All logic -level, NEMA - controller and Malfun ction Management Unit input and output terminations on the main panel shall be permanently labeled. Cabinet prints shall identify the function of each terminal position. At a minimum, three 20 -position terminal blocks shall be provided at the top of the m ain panel to provide access to the controller unit's programmable and non - programmable I/O. Terminal blocks for DC signal interfacing shall have a number 6 -32 x 7/32 inch screw as minimum. All main panel wiring shall conform to the following wire size and color:
a.Green/Walk load switch output - brown wire - 14 gauge
b.Yellow load switch output - yellow wire - 14 gauge
c.Red/Don't Walk load switch - red wire output - 14 gauge
d.MMU (other than AC power) - violet wire - 22 gauge
e.Controller I/O - blue wire - 22 gaug e
f.AC Line (power panel to - black wire main panel) - 8 gauge
g.AC Line (main panel) - black wire - 10 gauge
h.AC Neutral (power panel to - white wire main panel) - 8 gauge
i.AC Neutral (main panel) - white wire - 10 gauge
j.Earth ground (power panel) - green wire - 8 gauge
k.Logic ground - gray wire - 22 gauge
l.Flash programming - Orange wire
m.Flasher terminal - Black wire red or yellow field terminal - 14 gauge All wiring, 14 AWG and smaller, shall conform to MIL -W-16878/1, type B/N, 600V, 19-strand tinned copper. The wire shall have a minimum of 0.010 inches thick PVC insulation with clear nylon jacket and rated to 105 degrees Celsius. All 12 AWG and larger wire shall have UL listed THHN/THWN 90 degrees Celsius, 600V, 0.020 inches thick PVC insulation and c lear nylon jacketed. Connecting cables shall be sleeved in a braided nylon mesh or poly -jacketed. The use of exposed tie wraps or interwoven cables is unacceptable. All Terminals and Facilities configurations shall be provided with BIU wiring assignments consistent with NEMA TS2 -2003 specifications. All Terminals and Facilities configurations shall be provided with sufficient RS -485 Port 1 communication cables to allow for the intended operation of that cabinet. Each SDLC communication cable connector sh all be a 15 -pin metal shell D subminiature type. The cable shall be a shielded cable suitable for RS -485 communications. All main panels shall be pre -wired for a Type - 16 Malfunction Management Unit. All wiring shall be neat in appearance. All cabinet wi ring shall be continuous from its point of origin to its termination point. Butt type connections or splices are not acceptable. All connecting cables and wire runs shall be secured by mechanical clamps. Stick -on type clamps are not acceptable. The ground ing system in the cabinet shall be divided into three separate circuits (AC Neutral, Earth Ground, and Logic Ground). These ground circuits shall be connected together at a single point as outlined in the NEMA TS2 Standard. The main panel shall incorporat e a relay, to be designed as K1, to remove +24 VDC from the common side of the load switches when the intersection is placed into mechanical flash. The relay shall have a momentary pushbutton located on the relay to apply power to the load switch inputs fo r ease of troubleshooting. All pedestrian push button inputs from 939 the field to the controller shall be opto -isolated through the BIU and operate at 12 VAC. All wire (size 16 AWG or smaller) at solder joints shall be hooked or looped around the eyelet or terminal block post prior to soldering to ensure circuit integrity. Lap joint soldering is not acceptable.
715.42.8 3 -Power Panel Design and Construction: The power panel shall integrated
into the main panel and be located on the lower right portion of the cabinet. The power panel shall be wired to provide the necessary filtered power to the load switches, flasher(s), and power bus assembly. The power components shall be equipped with a removable plastic front cover for protection. The design will allow a technician to access the main and auxiliary breakers without removing the protective front cover. The power panel portion of the main panel shall include the following components:
a.A minimum of one (1) 40 -amp main breaker for 16 position cabinets. This breaker shall supply power to the controller, MMU, signals, cabinet power supply and auxiliary panels. Breakers shall be at minimum, a thermal magnetic type, UL listed for HACR service, with a minimum of 10,000 amp interrupting capacity.
b.A minimum of one (1) 15 -amp auxiliary breaker. This breaker shall supply power to the fan, light and GFI utility outlet.
c.An EDCO model SHP -300-10 or exact approved equivalent surge arrester.
d.A 50 amp, 125 VAC radio interference line filter.
e.A normally -open, 50 -amp, Solid S tate Relay (SSR). Shall be Crydom Model Number HA4875H or approved equal.
f.A minimum of one (1) 8 -position neutral bus bar is capable of connecting three #12 wires per position.
g.A minimum of one (1) 6 -position ground bus bar capable of connecting three #12 wires per position.
h.A minimum of one (1) NEMA type 5 -15R GFI utility outlet.
i.The cabinet shall have a roll -out/swing -out concealable shelf/platform that can be used as platform for a laptop computer or other tools when the cabinet door is opened.
715.42 8.4-Power and SDLC Bus Panel: The Power and SDLC BUS Panel shall be
manufactured from 0.090 - 0.125”, 5052 -H32 aluminum. It shall provide a central location to supply filtered power for the controller, malfunction management unit, cabinet power supply, an d all auxiliary equipment. It shall include the SDLC Bus connecting cables wired to a barrier type terminal block. As an alternate, SDLC Bus connections may be made via an SDLC Hub Assembly. All cabinet equipment requiring filtered power to operate shall be hardwired directly to the supplied barrier type terminal blocks on the Power and SDLC BUS Panel. All AC+ power sources shall be protected with a removable plastic cover plate. The SDLC Hub Assembly shall accommodate all D -Subminiature Female 15 (DB15) connectors as required, and a minimum of five (5) SLDC connections shall be provided.
715.42.8 5 -Auxiliary Cabinet Equipment: The cabinet shall be provided with a
thermostatically controlled (adjustable between 55 -160°F) ventilation fan in the top of t he cabinet plenum. The fan plate shall be removable with the use of simple hand tools for serviceability. A minimum of one, maximum of two, exhaust fans shall be provided. The fan shall be a ball bearing type fan and shall be capable of drawing a minimum o f 100 cubic 940 feet of air per minute (CFM). The Fan/Thermostat assembly shall be connected to the Power panel by means of a 4 position plug -in cable or hardwired to an appropriate circuit breaker. A LED cabinet lighting system may be used to illuminate the internal structure of the cabinet assembly. The LED cabinet lighting shall be a Luxem Bright LED module Model #772 -Woo13 and approved power supply, or approved equivalent. This lighting system shall be wired directly to a door active switch mounted near the top of the door. Alternately, a fluorescent lighting fixture shall be mounted on the inside top of the cabinet near the front edge. The fixture shall be rated to accommodate at minimum a F15T 8 lamp operated from a normal power factor UL or ETL listed ballast. The lamp shall be wired on the power panel or to a door activated switch mounted near the top of the door. A re-sealable print pouch shall be mounted to the door of the cabinet. The pouc h shall be of sufficient size to accommodate one complete set of folded cabinet prints. A minimum of two sets of complete and accurate cabinet drawings shall be supplied with each cabinet.
715.42.8 6 -Vehicle Detection: A minimum of one Loop Detector ra ck shall be
provided in each cabinet.
a.Shall support up to 16 channels of loop detection (either eight 2 channel detectors or four 4 channel detectors), two 2 -channel preemption devices and one BIU. All connections to the back of the detector racks to th e detector cards shall be soldered to a 44 terminal, double row, 0.156 in ch contact spacing, Cinch Jones card edge connector 50-44A-30M, or equivalent centered vertically for each detector module. All designations shall correspond to the requirements of th e TS2 -2003 specification. Card Guides shall be provided on the top and bottom of the card rack for each connector position. Each cabinet shall contain a detector interface panel per each detector rack for the purpose of connecting field loops and vehicle detector amplifiers. The panels shall be manufactured from 0.090 or 0.125” thick 5052 - H32 Aluminum and use barrier type terminal blocks. One 16 -position interface panel shall be provided for a 16 -channel rack cabinet. The interface panel shall be secure d to the left wall of the cabinet. Each interface panel shall allow for the connection of eight or sixteen independent field loops. A ground bus terminal shall be provided between each loop pair terminal to provide a termination for the loop lead-in cable ground wire. Each interface panel shall provide a barrier style terminal block to terminate the field wires for up to two 2 -channel preemption devices. Lightning protection device mounting holes shall be provided to accommodate the potential usage of an EDCO LCA -6, lightning protection device. A cable consisting of 20 AWG twisted pair wires shall be wired directly from the interface panel to the detector rack. The twisted pair wires shall be color coded red and white wire. No connectors shall be used to connect the interface panel to the detector rack. All termination points shall be identified by a unique number and silk screened on the panel. Each detector rack shall accommodate rack mountable preemption devices such as EMTRAC or Opticom.
715.42.8 7 -Cabinet Test Switches and Police Panel: A test switch panel shall be
mounted on the inside of the main door. The test switch panel shall provide as a minimum the following : 941 a. Signals On/Off Switch - In the OFF position, power shall be removed from signal heads in the intersection. The controller shall continue to operate. When in the OFF position, the MMU shall not conflict or require reset.
b.Auto/Flash Switch - When in the flash position, power shall be maintained to the controller and the intersection shal l be placed in flash. The controller shall not be stop timed when in flash. Wired according to NEMA -TS2-2003 the MMU forces the controller to initiate the start -up sequence when existing flash.
c.Stop Time Switch - When applied, the controller shall be stop timed in the current interval.
d.Control Equipment Power On/Off - This switch shall control the controller, MMU, and cabinet power supply AC power. The TS2 controller to be provided with the cabinet assembly shall provide vehicular and pedestrian call inpu ts from its keyboard while in the standard status display. The police door switch panel shall contain the following:
a.Signals On/Off Switch - In the OFF position, power shall be removed from signal heads within the intersection. The controller shall continue to operate. When in the OFF position, the MMU shall not conflict or require reset.
b.Auto/Flash Switch – When in the flash position, power shall be maintained to the controller and the intersection shall be placed in flash. The controller shall be s top timed when in flash. Wired according to NEMA -TS2-1998 the MMU forces the controller to initiate the start -up sequence when exiting flash.
c.Auto/Manual Switch - Cabinet wiring shall include provisions for an Auto/Manual switch and a momentary push button or hand cord. The Auto/Manual switch and push button or hand cord shall not be provided unless it is called for in the Customer Specification. All toggle type switches shall be heavy duty and rated 15 amps minimum. Single - or double -pole switches may be provided, as required. Any exposed terminals or switch solder points shall be covered with a non -flexible shield to prevent accidental contact. All switch functions must be permanently and clearly labeled. All wire routed to the police door-in-door and test switch push button panel shall be adequately protected against damage from repetitive opening and closing of the main door.
715.42.8 8 -Auxiliary Devices:
715.42.8 8.1 -Load Switches: Load switches shall be solid state and shall conform to
the requirements of Section 6.2 of the NEMA TS2 Standard. Signal load switches shall have a minimum rating of 10 amperes at 120 VAC for an incandescent lamp load. The front of the load switch shall be provided with three indicators to show the input signal from the controller to the load switch. Load switches shall be dedicated per phase. The use of load switches for other partial phases is not acceptable. The full complement of load switches shall be supplied with each cabinet to allow for maximum phase ut ilization for which the cabinet is designed.
715.42.8 8.2 –Flashers: The flasher shall be solid state and shall conform to the
requirements of section 6.3 of the NEMA TS2 Standard. Flashing of field circuits for the purpose of intersection flash shall b e accomplished by a separate flasher. The flasher shall be rated at 15 amperes, double pole with a nominal flash rate of 60 FPM. A full complement of flasher shall be provided.
715.42.8 8.3 -Flash Transfer Relays: All flash transfer relays shall meet t he
requirements of Section 6.4 of the NEMA TS2 Standard. The coil of the flash transfer relay must be de -energized for flash operation. The full complement of relays shall be supplied with each cabinet to allow for maximum phase utilization for which the cabinet is designed.
715.42.8 8.4 -Malfunction Management Units (MMU): Each cabinet assembly shall
be supplied with one MMU as defined by the requirements of Section 4 of the NEMA TS2 Standard. Malfunction Management Units shall be a Type 16. The MMU s hall be Model MMU - 16 (EDI Model MMU -16) or approved equal.
715.42.8 8.5 -Bus Interface Units (BIU): All BIUs shall meet the requirements of
Section 8 of the NEMA TS2 Standard. A full complement of BIUs meeting Section 5.3.1.4 if the NEMA Publication No . TS2 -2003 shall be supplied per cabinet. Bus Interface Units shall be supplied with each cabinet to allow for maximum phase and function utilization for which the cabinet is designed. A minimum of 3 BIUs shall be provided for each cabinet. Each Bus Inte rface Unit shall include power on, transmit and valid data indicators - all indicators shall be LEDs. A Type 1 Interface shall be defined as defined by Section 5.3, the controller interface shall conform to the Standard Publication NO. TS2 -2003.
715.42 8.8.6 -Cabinet Power Supply: The Cabinet power supply shall meet the
requirements of Section 5.3.5 of the NEMA TS2 Standard. The Cabinet Power supply shall provide LED indicators for the line frequency, 12 VDC, 12 VAC, and 24 VDC outputs. The cabinet pow er supply shall provide (on the front panel) jack plugs for access to the +24 VDC for test purposes. Cabinet power supply shall be provide with each cabinet assembly per manufacturer’s specifications. And be wired directly to the Power Bus Assembly via a 12-pin Molex Robotic type connector Model# 54332 -1270 or exact equivalent.
715.42.8 9 -Testing: Each controller and cabinet assembly shall be tested as a complete
entity under signal load for a minimum of 48 hours. Each assembly shall be delivered with a signed document detailing the cabinet final tests performed. The cabinet shall be assembled and tested by the controller manufacturer or authorized local distributor to ensure proper component integration and operation.
715.42.8 10 -War ranty: The controller and Malfunction Management Unit shall be
warranted by the manufacturer against mechanical and electrical defects for a period of two years from date of shipment. The manufacturer's warranty shall be supplied in writing with each cabi net and controller. Second party extended warranties are not acceptable. The cabinet assembly and all other components shall be warranted for a period of one year from date of shipment. Any defects shall be corrected by the manufacturer at no cost to the owner.
715.42.9 Signal Supports: Signal supports shall be certified to be equal or exceed the
requirements of "Standard Specifications for Structural Supports for Highway Signs,
Source: West Virginia Standard Specifications for Road and Bridge Construction, 2023 Edition. Pages 956–964 of 1,006.