E. Canopy Support System:
The canopy support footings shall be constructed in accordance with the
canopy manufacturer's requirements.
The Contractor shall supply and install 2" diameter
PVC (Schedule 40) 90 degree elbows in the footings as indicated in the Plans or
as directed by the Engineer.
F. Electrical Wiring
& Connections: All wiring shall
conform to the National Electric Code.
The Contractor is responsible for providing connections to the
electrical panel located in the equipment enclosure (see Panel Schedule Plan
sheets).
The Contractor shall furnish and install all electrical
equipment and incidentals necessary for the satisfactory operation of the
canopy lighting system prior to final acceptance by the Kansas Turnpike
Authority.
3.0 SUBMITTALS:
A. Product Data: Submit manufacturer's detailed technical
data for materials, fabrication, and installation, including catalog cuts of
anchors, hardware, fasteners, and accessories.
B. Shop Drawings: Submit shop drawings for fabrication of
canopy roof, support framework, fascia, electrical wiring and connections, and
other items not fully described by product drawings. Include plans, elevations, and large-scale sections of typical
members and other components. Shop
drawings showing details of the canopy support footings shall also be
submitted.
4.0 BASIS OF PAYMENT:
Payment for completed and accepted work covered by this special
provision will be made at the contract unit price per each for the bid item
"TOLL PLAZA CANOPY". Payment
will be full compensation for furnishing, transporting, and placing all
materials, and for labor, equipment, tools, and incidentals necessary to
complete the work as specified and as shown on the Plans.
Rev. 4-17-08
KANSAS TURNPIKE
AUTHORITY
SPECIAL PROVISION TO THE
STANDARD SPECIFICATIONS
EDITION OF 2007
NOTE: This special provision is generally written in the imperative
mod. The subject, “the Contractor” is implied.
Also implied in this language are “shall”,
shall be”, or similar words and phrases.
The word “will” generally
pertains to decisions or actions of the Kansas Department of Transportation.
KTA
ELECTRICAL WORK
NOTE: KTA ELECTRIC LIGHTING AND TRAFFIC SIGNALS
FOR THIS PROJECT SHALL COMPLY WITH THIS SPECIAL PROVISION AND THE CURRENT
ADDITION OF THE STANDARD SPECIFICATIONS:
1.0
DESCRIPTION
Make
arrangements for services; provide material for, and install electrical
equipment IN the equipment enclosure building; provide and install
engine/generator; connect the heating and cooling equipment; provide and
install circuits for toll plaza; connect the electrical equipment in the
prefabricated tollbooths and canopy; provide and install KTA roadway lighting
as shown in the Contract Documents; perform all other electrical work necessary
to complete the electrical installation ready for use; and provide and install
telephone service.
BID ITEM UNIT
Roadway
Lighting Lump
Sum
Electrical
System (Entry Plaza) Each
Electrical
System (Exit Plaza) Each
2.0
MATERIALS
a. Provide materials that comply with the Contract
Documents.
b.
The KTA will
provide and install all toll collection equipment
c. Raceways. Provide conduit that is free from blisters, cracks
or injurious defects of the material called for in the Contract Documents or as
herein specified. Show the raceway
minimum trade size of ½ inch in the Contract Documents.
(1) Electrical Metallic Tubing: Provide E.M.T. with compression fittings
conduit for general use within the building and above the slab, size 2 inches
and smaller. Set screw fittings are not
allowed.
(2) Galvanized Rigid Steel Conduit: Provide conduit that is UL listed and
complies with the requirements of ANSI Standard C80.1 “Specifications for Rigid
Steel Conduit, Hot Dip Galvanized” manufactured by Allied Steelduct, Triangle,
Youngstown, or approved equal.
(3) Provide hot-dip
galvanized rigid steel conduit fittings fabricated in accordance with ASTM-A153
manufactured by Appleton Electric, Crouse Hinds, O.Z. Electric, Pyle-National,
Russell & Stroll, Thomas and Betts, or approved equal.
(4) Liquid Tight Flexible Metal Conduit: Provide Anaconda Type UA, Electi-Flex Type
LA, or Sealtite Type UA liquid tight flexible steel conduit constructed of a
flexible galvanized steel core made for continuous steel metal and an extruded
PVC cover.
(5) Provide fittings with
insulated throat that are UL labeled with an “O” ring assembly on each fitting
manufactured by Appleton Electric, Ideal Industries, Efcor, or Thomas Betts.
(6) Rigid Nonmetallic
Conduit: Provide rigid
polyvinylchloride, Schedule 40, 90° C nonmetallic conduit of the sizes
indicated in the Contract Documents and that comply to the NEMA standards and is
UL listed in conformity with Article 347 of the NEC.
(7) Provide conduit
fittings, and cement produced by the same manufacturer, who have had at least 5
years experience in manufacturing these products. Solvent weld all joints in accordance with the recommendation of
the manufacturer.
(8) Cable Tray: Provide and install a complete cable tray
system that complies with NEMA standard VE-1 as manufactured by B-Line Systems
or approved equal. The system includes
all straight trays, fittings, and related support accessory items as required
for a complete installation. Install
the tray installation in conformance with the National Electric Code.
(9) Provide ladder type
trays with 6 inch rung spacing for support of data cables, adequate cable
bearing surface for the installed conductors and circuit conductors. Ensure that the ladder is a double rung or
box type and free of sharp edges or corners so as to protect conductor
insulation. Ensure that the aluminum
ladder tray are is manufactured of alloy 6063-T6 provided in its natural finish
state, welded construction and utilize “C” shaped channel siderails with
flanges facing inward and the tray siderail with a radius to protect cables
from damage.
(10) Ensure that the
cable tray is of the size as indicated on the drawings: Straight sections are 12 feet long; Splice
plates are high strength to splice between supports; Splice hardware includes a
spliced shoulder bolt which fully engages both the splice plate and the
siderail; Locknuts are of the serrated flange type allowing for one wrench
installation; and, Cable tray system includes all related accessory items such
as dropouts, end plates and hardware.
(11) Nonmetallic Wireways (Fiberglass): Wireways shall be fiberglass polyester or
PVC Plastic wireways manufactured by Hoffman or approved equal. Fiberglass polyester wireways shall be
extruded and fabricated to the size and shape indicated, with no holes or knockouts. Cover is gasketed with oil-resistant gasket
material and fastened with captive screws tested for corrosion resistance. Connections are flanged, with
stainless-steel screws and oil-resistant gaskets.
(12) Nonmetallic
Wireways (PVC): PVC Plastic
wireways shall be extruded and fabricated to size and shape indicated, with
snap-on cover and mechanically coupled connections with plastic fasteners. Approved manufacturers include Hoffman;
Lamson & Sessions – Carlon Electrical Products; Hubbell.
(13) Provide fittings and
accessories including couplings, offsets, elbows, expansion joints, adapters,
hold-down straps, end caps, and other fittings to match and mate with wireways
as required for complete systems.
Select features, unless otherwise indicated, as required to complete
wiring system and to comply with NFPA 70.
d. Conductors.
Provide insulated conductors with accessories in sufficient
quantities for a complete installation. Ensure that installation is in
accordance with NEC, and includes placement, splicing,
terminating, identifications, testing,
and verification of each circuit and conductor.
Provide conductors where indicated and required. Ensure that all conductors installed in
conduit underground are single conductor, 600 V. type USE, complying with IPCEA
or ANSI latest specifications. Ensure
that building wiring is type THWN with NEMA Standard color braid. Ensure that the wiring in the maintenance
tunnel is multi-conductor tray cable.
No wire is to be smaller than No. 12 AWG.
Use solderless pressure split-bolt connectors properly taped and
painted with insulating varnish, for all above-ground splices in wiring where
possible. Vinyl plastic tape with
dielectric rating of 100 volts per mil of thickness and minimum of three layers
of half-lapped may be used in lieu of insulating compound and friction tape.
Acceptable manufacturers are as follows or approved equal:
·
Okonite
·
Allied
Wire and Cable
·
Rockbestos
·
Houston
Wire and Cable
Provide a durable marking on the outer surface of all cables or
conductors at intervals not exceeding 24 inches. Include manufacturer’s name, insulating material, conductor size,
and voltage class on the marking.
e.
Wiring Devices.
In finished spaces, utilized white switch
and receptacle devices and white plastic nylon coverplates. In non-finished spaces use stainless steel
coverplates.
Provide GFI receptacles with weather proof flat cover, equal to
Hubbell No. GF 5362.
f. Nameplates.
Provide laminated Acrylic or Melamine nameplates that are
punched or drilled for screw mounting and engraved to show white letters on a
dark-gray background for all pieces of equipment shown in the Contract Documents,
and for all devices in panels.
g. Panelboards. Provide and install all panelboards where shown in the
Contract Documents. Mount the
panelboard so the top is no higher than 6.5 feet above the floor. Construction as follow:
Provide dead
front type panelboards. Provide code
gauge galvanized sheet steel cabinets
complete with hinged door, lock and two keys, with all exposed metal
surfaces primed-painted and finished with two coats of light gray baked enamel,
with trim as indicated on the Plans.
Include the completed typewritten circuit directory. Ensure that all locks are keyed alike.
Ensure
that the panelboards is of such design that branch circuits may be changed
without additional machining, drilling, or tapping. Ensure the branch circuit connections provide sequence phasing
with connections permanently identified on the face of the front of the panel
interior.
Ensure that the panelboards is equipped with automatic circuit
breakers for branch circuit protection and has ratings as indicated. Ensure that all single pole branches are
rated 20 ampere unless indicated otherwise.
Ensure that rigid busses for the
panelboards are copper or copper alloy and are installed to provide consecutive
phasing. Provide solid neutral busses
with solderless connectors, insulated from the cabinet and an ampacity equal to
the ampacity of the phase fusses.
Ensure the equipment grounding bus is bonded to the cabinet, with solderless
connectors and a main lug. Ensure that
all copper parts are plated to prevent corrosion.
Ensure circuit breakers of the indicating
type, that provide distinctive “on”, “off”, and “tripped” positions of the
operating handle. Provide single
operating handle multi-pole breakers so designed that an overload in any one
pole automatically causes all poles to open.
Provide circuit breakers of the thermal
magnetic type having inverse time delay thermal trip on overloads and
instantaneous magnetic trip on short circuit.
The ambient compensation is for 60° C.
Ensure the circuit breakers are quick-break, quick-make on manual as
well as automatic operation. Ensure
that each circuit breaker is independently removable without disturbing
adjacent units or other bus connections and is fastened to the main bus bars
with a bolt-on connection. Ensure that
all copper parts are plated to prevent corrosion.
Ensure that all breakers 100 ampere frame
and smaller have a minimum interrupting rating of 10,000 ampere, and all larger
frame size breakers shall have a minimum interrupting rating of 22,000 amperes.
Provide cabinets of sufficient size to
provide gutter space no less than that required by the Underwriter’s
Laboratories and in no case less than 4 inches.
Provide panelboards that are factory
assembled, UL listed, type NQOD for 240 volts and NF for 480 volts manufactured
by Square D only.
h.
Standby Engine
Generator Set.
(1) General:
Provide a Propane fueled engine-generator sets as shown in the Contract
Documents.
(2) Ratings: Ensure that the engine-generator set is a 4
cycle, 1800 rpm, high ambient cooling system, with low reactance brushless
generator, torque-matched excitation, automatic voltage regulator, set mounted
control panel, and fully rated for standby, 120/240 volt AC, three phase, four
wire, 60 hertz.
(3) Generator:
Ensure that the voltage regulation is + 0.5 percent of rated
voltage for any constant load between no load and rated load and capable of
single step load pick up of 100% nameplate.
Ensure that the generator is: synchronous, four pole, revolving field,
drip-proof construction; single pre-lubricated sealed bearing; air cooled by a
direct drive centrifugal blower fan; and, directly connected to the engine with
flexible drive discs. Ensure that all
insulation system components meet NEMA MG1 standard temperature limits for
Class H insulation system. Ensure that
the actual temperature rise measured by resistance method at full load does not
exceed 257°F. (125°C).
Provide a Shunt excitation system that uses power
from the main generator output. Ensure
that the automatic voltage regulator has temperature compensated, half wave
phase controlled solid state design and includes an under-speed protection function. Ensure that the regulator design includes a
torque-matching characteristic to allow the engine to use its fullest power
producing capability at speeds lower than rated, to optimize motor starting
capability and to provide the fastest possible recovery from transient speed
dips.
Ensure that the generator is an extended stack type
to provide three-phase output.
(4) Control:
Ensure that the control has automatic remote start capability from a
panel-mounted 3 position (Stop, Run, Remote) switch. Provide cycle cranking of 15 seconds on /15 seconds off for three
attempts. If engine fails to start,
lockout engine and indicate over-crank on alarm status panel. Ensure that the control shuts down and locks
out upon: failing to start, over-speed,
low lubricating oil pressure, high engine temperature, or operation of a remote
manual stop. A panel mounted switch
resets the engine monitor and test all the lamps. Ensure that the lamps on the control panel lamp indications
include:
Over-crank shutdown – red
Over-speed shutdown – red
Low oil pressure shutdown – red
High engine temperature shutdown – red
High engine temperature pre-alarm – yellow
Low engine oil pressure pre-alarm – yellow
Low coolant temperature – yellow
Low fuel - yellow
Run – green
Not in automatic start – flashing red
Ensure that the enclosed control
panel is mounted on the generator set with vibration isolators. Provide a front control panel illumination
lamp with ON/OFF switch. Ensure that
the control panel mounted indicating meters and devices include: Engine Oil Pressure Gauge, Coolant
Temperature Gauge, DC Voltmeter, and Running Time Meter.
Ensure the AC voltage meter
package includes analog AC voltmeter, analog AC ampmeter, analog frequency/RPM
meter, analog power factor meter, and analog wattmeter.
(5) Engine: Ensure that the engine is a 4 cycle, 1800
RPM, with forged steel crankshaft and connecting rods and a cast iron block and
two valves per cylinder. Two cycle
engines are not acceptable.
Ensure that the mechanical
governor, integral with the fuel pump, provides automatic engine-generator set
frequency regulation of 5% drop.
Ensure that the engine is cooled
by a unit-mounted closed loop radiator system rated for full rated load
operation in 122°F. ambient. Fill the
engine cooling system with a 50/50 ethylene glycol/water mixture. Shield all rotating parts against accidental
contact.
Provide the following accessories
with the engine-generator set:
(5.1) Starter: An electrical starter capable of three
complete cranking attempts without overheating.
(5.2) Oil Pump: Positive displacement, mechanical, full
pressure, lubrication oil pump. Full
flow lubrication oil filters with replacement spin on canister elements and
dipstick oil level indicator.
(5.3) Charger: Engine mounted battery charging alternator,
45 ampere, and solid-state regulator.
(6) Base: Ensure that the set is mounted on a heavy
duty steel base to maintain alignment between components. Incorporate in the base, a battery tray with
battery holddown clamps within the rails.
Ensure that provisions for stub up of electrical conduits are within the
footprint of the set. Ensure that
vibration isolators, standard quality and type are integral between generator
set and base.
(7) Auxiliary Equipment: Ensure that the engine-generator set
includes the following accessories:
(7.1) Main Circuit Breaker: Ensure that the generator main circuit
breaker is set mounted and wired, UL listed, molded case thermal-magnetic type,
rated 240 volts, 3 pole.
(7.2) Batteries: Supply starting batteries, lead acid type,
size as recommended by the manufacturer for each generator set with battery
cables and connectors.
(7.3) Charger: Ensure that a 10 amp voltage regulated
battery charger is provided for the engine-generator set. Ensure that the input AC voltage and DC
output voltage is as required. Provide
visual output indicators for operational monitors of:
Loss of AC power – red
Low battery voltage – red
High battery voltage – red
Power ON – green
(7.4) Muffler: Ensure that the engine muffler is provided
as recommended by the manufacturer.
(8) Automatic Transfer
Switches: Provide transfer switches
with electronic control designed for surge voltage isolation, voltage sensors
on all phases of both sources, linear operator, permanently attached manual handle,
positive mechanical and electrical interlocking, mechanically held contacts,
quick make, quick break contact mechanisms for transfer under load.
(8.1) Ratings: Ensure that the switch is UL listed and
labeled, tested per UL Standard 1008, and CSA approved.
Provide switches that are 3 pole,
240 volt with 600 volt contacts and carry a rating of 100 percent of the rated
current continuously in a temperature range of -40° C. to +50° C. Ensure that the switch has a “withstand” and
“closing” rating in RMS symmetrical amperes greater than the available fault
currents shown on the drawings.
(8.2) Automatic Controls: Provide controls that are solid-state and
designed for a high level of immunity to power line surges and transients,
demonstrated by test to IEEE Standard 587-1980. Ensure that the controls have optically isolated logic inputs,
high isolation transformers for AC inputs, and relays on all outputs.
Provide solid-state under-voltage
sensors that simultaneously monitor all phases of both sources; the voltage
sensors allow for adjustment to sense partial loss of voltage on any phase;
and, the voltage sensors have field calibration of actual supply voltage to
nominal system voltage. Ensure that
pick-up and drop-out settings are adjustable.
(8.3) Front Panel Devices:
Provide devices mounted on cabinet front consisting of a three position
selector switch to provide the following functions:
·
Test
– simulates normal power loss for testing generator set.
·
Normal
– Normal operating position
·
Retransfer
– Momentary position to override retransfer time delay and cause immediate
return to normal source.
Manufacturer:
Provide engine generator and automatic transfer switches made by the
same manufacturer and provided by Onan Corp.
i.
Grounding.
Provide stranded soft-drawn,
insulated copper ground cable that complies with ASTM B3
Class B. Ensure that ground cables are interconnected or bonded to
structural steel or ground rods by exothermic welds. Apply two coats of insulating varnish over all exothermal welds
and exposed cables.
Provide
ground rods that are ¾ inch x 10 foot copper clad standard type, as
manufactured by Copperweld, Weaver, or approved equal.
j.
High
Mast Roadway Lighting.
(1) 1000 Watt High Mast Lighting:
Provide 1000 watt high mast luminaries with a housing of a single piece,
copper free aluminum alloy casting; arm attachment clamp that engages a 2 inch
nominal pipe and allows 3 degree adjustment for leveling; and, all ballast
components that are mounted to a single plate which are removable, with a quick
disconnect plug, as a unitized assembly for maintenance. Ensure that the symmetrical distribution
reflector is borosilicate glass and is specially made to reduce direct
glare. Provide luminaries
manufactured by Holophane Only, Cat. #HMSD-C10HP-48-S8-PS-ELB.
(2) High Mast Towers: Provide
towers that are completely galvanized in accordance with the requirements of
ASTM A-123 and comply with the requirements of ASTM A-595 with the exceptions
and/or additions as listed in the Standard Kansas Department of Transportation
Standard Specifications, 2007 Edition, Section 1608. Ensure that the tower assembles by telescoping on the job
site.
(3) Base Plate: Provide base plates made of steel plate that
have essentially the same chemical composition as the tower and are designed to
withstand the full bending moment of the shaft.
(4) Main Support Assembly: Provide the main support assemblies
fabricated from weldable structural steel, hot dipped galvanized in accordance
with ASTM A 123 or electroplated with a minimum thickness of 0.4 mil, and
attached to the shaft by sleeving and secured by set screws or other similar
attaching means. Ensure that the main
support assembly has six hoisting sheaves and one power cable sheave. Ensure that the sheaves are oil impregnated,
sintered bronzed bushings over stainless steel shaft, or permanently sealed
ball bearings with inner fixed races.
Include mechanical latching devices in the main support assembly.
(5) Luminaire Ring: Provide luminaire rings constructed of
weldable structural steel, hot dipped galvanized in accordance with ASTM A 123
or electroplated with a minimum thickness of 0.4 mil with three or four, as
required, 2-inch nominal steel; pipe luminaire mounts.
k. Conventional Roadway Lighting.
(1) Roadway Luminaire:
Provide luminaries that are high-pressure sodium type, 250 watt rating
that have a “cobra head” shape with cast aluminum housing, stainless steel
external hardware, lens holder with latch, sealed and gasketed flat glass lens,
2 inch diameter end mounting slip fitter, external mounted light distribution
decal, an adjustable glazed porcelain lamp socket, and a lamp vibration end
support grip. Roadway luminaire shall
be Thomas & Betts, American Electric 125 series single door cutoff
126-0-66-3-3-DJ-0-0-A-0 or approved equal.
(1.1) Ballast: Ensure that the ballast is the integral
isolated magnetic regulating type with a 10% line voltage variation that give
wattage regulation as prescribed by the trapezoidal limits in ANSI Standards
for a high pressure sodium lamp throughout the rated life of the lamp. Ensure that the lamp igniter is designed and
tested to operate continuously for 800 hours in a 194°F (90°C) ambient
environment.
(1.2) Housing: Ensure that the entire luminaire assembly is
constructed and equipped to withstand high shock and vibration. Ensure that the luminaire with lamp
successfully pass vibration testing consisting of 3 g. forces for 100,000
cycles at the resonant frequencies in each of the three planes. Submit the test reports before approval of
the luminaire.
(1.3) Distribution: Provide factory set luminaries that produce
the IES Type III distribution. Supply
published data obtained from photometric tests conducted according to IES
testing procedures.
(1.4) Grounding: Ground each luminaire by a green insulated
no. 12 AWG copper conductor attached to the luminaire housing and to the
grounding lug a the base of the light standard.
(2) Lighting Pole
Foundations: Provide cast-in-place,
concrete, drilled shaft foundations for the ground-mount, lighting. Complete the foundations to include anchor
bolts, anchor nuts, shim pack, reinforcing, ground leads, and 2 inch diameter
PVC entrance conduits.
l. Special Systems.
(1)Install Overheight Detection
Equipment, designed to warn booth operators of vehicles
that are too tall, as indicated on the plans.
(2)Photoelectric Controls: Provide
the photoelectric control that is an outdoor unit that
fits in a standard watt-hour meter
socket, attached to a 1 inch galvanized rigid conduit, anchored to the
equipment enclosure. Ensure that the control operates on 105-130 V.A.C., 60
Hertz. Ensure that the control is designed to energize system upon failure.
(3)
Axle
Counting Treadles: Install 2 inch
galvanized rigid steel conduit to treadle frames, provided by the KTA. Treadle Frames are to be installed as a part
ofthe bid item “Toll Plaza”.
(4) Install all conduits of the size and type
specified to the Entry Lane and Exit Lane Sign Structure. Pull all conductors and provide all
connections for a complete and working system of signs for the sign structures
with switch controls in the Type B Booth.
(5) Install all conduits of the size and type
specified in the ETC Installation Details.
Where conduits are cast in concrete paving, coordinate all work with the
paving contractor. Where conduits,
junction boxes or other equipment is cast into service pads, include the
placement of these service pads in the installation.
(6)
Temporary Power Service: Provide temporary power service if found to
be needed, and remove it upon connection to the permanent system.
m. Basis of Acceptance.
The
Engineer will accept the roadway lighting and accessories, and electrical
system on the basis of approved catalog cuts and satisfactory completion of the
work.
3.0 CONSTRUCTION REQUIREMENTS
a.
Install the electrical system as shown in the Contract Documents.
b.
Make all contacts with Kansas Power and Light and all necessary scheduling
of work with the utility. The
Electrical Contractor shall pay costs associated with concrete pads and
conduits to set pad mounted equipment.
All hook-up and other fees charged by the utility shall be direct billed
to the KTA.