ITEM
625 HIGHWAY LIGHTING
625.01
Description
625.02
Definitions
625.03 Codes
625.04 Permits
625.05
Materials
625.06
Working Plans
625.07
Incidentals
625.08
Luminaires
625.09
Luminaire Supports
625.10
Foundations
625.11 Junction
Boxes (Handholes) & Pull Boxes (Manholes)
625.12 Raceways
and Conduits
625.13
Trenching
625.14 Jacking
or Boring
625.15 Power
Service (Control Equipment)
625.16 Grounding
625.17 Wiring
and Cabling
625.18
Connections
625.19 Testing
of Installations
625.20 Plastic
Caution Tape
625.21 Removal
of Lighting Equipment
625.22 Method
of Measurement
625.23 Basis of
Payment
625.01 Description. This work
consists of furnishing and installing highway lighting equipment complete and
ready for service. This work shall also include necessary excavation and
backfill, disposal of discarded materials, restoration of disturbed facilities
and surfaces, and testing as specified.
625.02 Definitions. Lighting terminology
herein is defined in the American
National Standard Practice for Roadway Lighting.
625.03 Codes. Follow the National
Electrical Code, The
National Electrical Safety Code and local codes where applicable.
625.04 Permits. Obtain all permits required as an
incidental to the construction of the lighting installation.
625.05 Materials. Furnish materials conforming to:
Concrete QC Misc or QC 1.................................. 499, 511
Reinforcing
steel...................................................... 509.02
Sand.........................................................................
703.06
Cable........................................................................
725.02
Unit type duct-cable
systems................................... 725.03
Conduit......................................
725.04, 725.051,
725.052
Pull
boxes......................... 725.06, 725.07, 725.08,
725.12
Junction
boxes......................................................... 725.10
Luminaires...............................................................
725.11
Lamps......................................................................
725.11
Cable connectors and
connector kits........................ 725.15
Cable splicing
kits.................................................... 725.15
Ground
rods............................................................ 725.16
Power service
components...................................... 725.19
Wood service
poles.................................................. 725.19
Multiple cell
conduit................................................ 725.20
Anchor bolts and
nuts.............................................. 725.21
Light
poles............................................................... 725.21
Light
towers............................................................. 725.21
Portable power
units................................................ 725.21
Plastic caution
tape................................................... 725.22
625.06 Working Drawings. Submit, to the Engineer
prior to incorporation, two copies of the shop drawings and catalog cuts which
identify and describe each manufactured item which is being incorporated into
the construction. Certify in writing that each manufactured item is in
conformance with all contract requirements for that item. Ensure that the
documents describing each item indicate the project number (including the
construction year) and the bid reference number under which the item is being
installed and that the documentation contains all of the information needed to
allow the Engineer to determine that the item to be supplied meets all
applicable requirements along with all of the information needed by the
maintaining agency to obtain an identical replacement unit from the
manufacturer. When a given item is to be incorporated into the
construction under multiple bid item reference numbers, furnish a separate and
complete documentation package for each bid item reference number under which
the item is to be installed. When multiple items are to be incorporated
under a single bid reference number, submit the documentation for all such
items together.
625.07 Incidentals. Furnish and install all
incidentals necessary to provide a complete and practical working unit or
system.
625.08 Luminaires. A luminaire consists of a housing with a lamp, a lamp socket, the optical components
to direct the output from that lamp, and the electrical components needed to
operate the lamp.
Ensure
that luminaires of the same type (i.e. high mast, low mast, conventional,
underpass, post top, etc) in a given installation
(i.e. interchange, rest area, weigh station, etc.) are of the same brand.
Align
each luminaire vertically and horizontally to the roadway as specified.
Where the profile grade exceeds 4 percent and the luminaire is mounted less
than 60 feet (18 m) above the roadway, adjust the luminaire to be perpendicular
to the roadway rather than gravimetric level.
At
the locations designated in the plans or as directed by the Engineer, furnish
and install glare shields obtained from the manufacturer of the luminaire
After
all other work has been completed, clean the
reflector, refractor and other components of the optical assembly just prior to
leaving the job.
625.09 Luminaire Supports. Luminaire
supports fall into three categories: bracket, light pole, light tower.
A
bracket is the attaching hardware used to mount a luminaire onto the face of a
wall or pier cap, or hang a luminaire from the bottom of a deck or beam or
other similar installation. A bracket is often supplied for the luminaire
by the luminaire manufacturer to facilitate the installation of the
luminaire. A more complex situation will require extensive work to
fabricate a bracket for the situation.
A
light pole is the pole with one or more fixed brackets or arms for supporting
luminaires above the roadway to be lighted. A light pole also includes a lower
portion of the pole which is embedded or a mounting plate, any base for housing
components or wiring, and when specified a breakaway device such as a frangible
base, frangible couplings or slip plates.
A
light tower is a shaft with a base plate, head frame, ring or similar structure
on which one or more luminaires are mounted with a mechanism for lowering the
mounting ring and luminaires for servicing and a lightning protection system.
Ensure
that luminaire supports of the same type (i.e. high mast, low mast,
conventional, underpass, post top, etc.) in a given installation (i.e.
interchange, rest area, weigh station, etc.) are of the same brand.
Plumb
each light pole and each light tower. When shims are used, use only shims
of an approved design and installed in an approved manner. Do not install
more than the minimum number needed to plumb the pole and neither exceed the maximum allowed total thickness of the shim pack
nor the maximum number of shims permitted. When leveling nuts are used,
ensure that such nuts are installed in approved locations and that both the
anchor and the leveling nuts are properly tightened.
Ensure
that the grounding connections for each light pole or light tower have been
made and that the resultant ground is within the earth resistance limit
specified
Apply
a suitable lubricant to prevent seizing to each cover fastener and install all
such fasteners.
After
erection, the Engineer shall inspect each pole for defects in the surfaces and
determine for each defect discovered whether the defect is minor enough that
the Contractor may be allowed to field repair the finish or major enough that
the Contractor must replace the pole. Make finish repairs and provide and
install replacement poles as directed by the Engineer for no additional charge
to the project.
Label
each light pole and light tower with the alpha numeric identifier. Place
the identifier on the quadrant of the surface of the pole that faces oncoming
traffic at approximately 7 feet (2 meters) above the roadway surface.
Apply the identifier letters and numerals when the ambient air temperature, the
temperature of the labeling material and the temperature of the surface to
which the labels are applied are all above 40° F (4° C). Identification
of the light poles or light towers and the removal of any previous such
identifier in the case of light poles or light towers being reassigned shall be
considered as incidental work.
625.10 Foundations. Excavate for each
foundation to the dimensions given.
If
a cave in should occur during excavation, excavating using casing, sleeving or other methods may continue with the approval of
the Engineer.
Where,
in the opinion of the Engineer, the excavation for a foundation has revealed an
unstable condition at the bottom of the excavation, drill the foundation shaft
deeper, enlarge the diameter of the drilled shaft, or make other modification
to the foundation as directed by the Engineer who shall initiate the
appropriate arrangements to compensate the Contractor for the addition work
required.
When
rock is encountered, continue excavation to a minimum of 3 feet (1 meter) into
rock. The Engineer may then decrease the total depth of the foundation to
not less than 6 feet (2 meters) for a light pole or 10 feet (3 meters) for a
light tower.
Reinforce
each foundation with steel as specified and such steel reinforcing shall be
placed in accordance with 509.
Install
the anchor bolts for the light pole or light tower in each foundation using
anchor bolt setting templates.
Place
Class QC Misc or QC 1 concrete for the foundation in
accordance with 511 except that forms will not be
required for portions of foundations extending more than 6 inches (150 mm)
below the ground line, unless the soil does not have sufficient stability to
stay in place during the placing of the concrete.
Finish
the top of each foundation smooth and level.
After
forms have been removed, backfill the excavated spaces around each foundation
with suitable material placed and tamped in thin layers as directed by the
Engineer.
625.11 Junctions Boxes (Handholes)
& Pull Boxes (Manholes).
Furnish
and install a junction box of the size and type specified. Furnish each
junction box embedded in concrete with a drain. Lubricate each cover
screw with a compound to prevent the screw from seizing and install all cover
screws.
Furnish
and install a pull box of the size and type specified. Excavate for each
pull box as nearly as practicable to the outside dimensions of the pull
box. Install a 6 inch (150 mm) gravel base with a 4 inch (100 mm) underdrain to a suitable outlet below each pull box.
After setting the pull box to proper grade, backfill the excavated spaces
around the pull box with suitable material placed and thoroughly tamped in thin
layers.
When
a pull box is to be installed in a paved area, remove an adequate area of the
paving by saw cutting the sides of the area to be removed, or by removal of the
paving back to an expansion joint as instructed by the Engineer. After
setting the pull box to proper grade, backfill the excavated spaces around the
pull box with suitable material placed and thoroughly tamped in thin layers,
and restore the pavement base and paving to match the surround.
Metal
pull box lids shall be bonded by attachment of the equipment grounding
conductor to the frame diagonal.
625.12 Raceways and Conduits. Furnish and
install conduit of the sizes and types specified. When the location, type
or size of a conduit has not been indicated, submit to the Engineer working
drawings showing the location and size and type of each such conduit along with
the number and size of wires contained in each such conduit and secure the
approval of the Engineer prior to installing the conduit.
When
not otherwise specified, all conduit and fittings on an individual run of
conduit shall be of the same material except for approved manufactured transition
fittings required at end of the run when the item into which the conduit
terminates is not of the same material as the conduit.
Install each conduit with a
minimum amount of bending and ensure that the total bending between adjacent
access points (junction boxes, pull boxes, light poles, control equipment
enclosures, etc.) does not exceed 270 degrees. Do not bend any conduit to a
bend radius of less than 12 times the internal diameter of the conduit. Bend
each conduit in such a manner as to avoid damage to the conduit and any
protective coating and such that the internal diameter of the conduit will not
be reduced.
Remove
the rough edges from the cut end of each conduit. In addition, ream the
cut end of each metallic conduit. Bush each end of each conduit to
further protect the wire insulation and cable jackets from damage.
Where
threads have been cut onto ferrous metallic conduit after galvanizing, paint
the threaded area with an electrical conductive paint in such a manner that
there will be no unprotected surfaces.
Make
each conduit joint tight to provide structural integrity in all conduits and to
electrically bond the jointed sections of metallic conduit. Provide an equipment grounding conductor that is not in a jacketed cable
assembly in metallic conduits when not otherwise available and bond the conduit
to this grounding conductor.
Securely
fasten onto or build into the structure each conduit.
Install
the appropriate expansion or deflection joint in each conduit at all locations
where movement must be accommodated (such as expansion joints on structures)
and install suitable bonding to assure electrical continuity of the grounding
system.
Bond
all metallic items enclosing electrical conductors together and to good earth
ground.
Furnish
each enclosure, junction box, pull box and conduit
with a drain. When the low point of a conduit does not occur at a drained
access point, install a T coupling at the low point of the run and route the
side outlet to drain.
Where
underground conduits are to be encased in concrete, use Class QC Misc or QC 1 concrete and furnish a minimum of 3 inches (75
mm) of concrete on all sides using spacers.
After
installation of the conduit and prior to installing the cables, run a mandrel
whose diameter is at least 90% of the interior diameter of the conduit through
the conduit.
If
a conduit is to remain empty upon completion of the project, leave a 10 AWG copper clad, aluminum clad or galvanized pull wire in
the conduit and cap the ends in an approved manner.
Temporarily
seal the ends of a conduit immediately after placement of conduit when the
conductors or cable cannot be installed promptly.
After
installing the wire or cable, seal the end of a conduit entering the base of a
signal pole, sign support, light pole, a light tower or a pad mounted equipment
enclosure through the foundation.
625.13 Trenching. Follow the routing shown on the plan.
Keep the trench within 6 inches (150 mm) of the designated line where the
trench is adjacent to and parallel with a curb or pavement.
In
unpaved areas, a plow may be used in lieu of trenching with the approval of the
Engineer. Use a machine that can install the duct uniformly at the
specified depth without stretching or abrading the duct and which leaves a
narrow self closing slit which presents no
significant hazard during the self closing period.
In
unpaved areas, make the trench a minimum of 2 feet (0.6 m) deep and not more
than 12 inches (300 mm) in width. Backfill the trench in layers not more
than 4 inches (100 mm) in loose depth and compact each layer with a mechanical
tamper or other approved method as directed by the Engineer. Use suitable
soil to backfill a trench in earth. Use granular material to backfill a
trench in an aggregate. Ensure that the backfill material around and in
the first 4 inches (100 mm) above the top of unit type duct cable not encased
in concrete is sand or earth with no stones larger than 1/2 inch (13 mm).
In
paved areas, either make a slit or T type trench. Cut
the pavement along existing joints or grooves where possible. Mark the pavement
with cut lines and secure the Engineer’s approval of the location of the cut
before cutting the pavement.
625.14 Jacking and Boring. In addition to
the requirements of 625.12 to furnish and
install conduit, use jacking or horizontal boring when the plan calls for such
methods to be used. Use these methods in lieu of trenching only with the
approval of the Engineer.
Jack
only rigid galvanized steel conduit. Use only a machine designed for
jacking conduit not the bucket or blade of a machine designed for earthwork.
Horizontal
boring may be used to install any conduit or duct which has the adequate
strength, flexibility and joints to withstand the process. Make the
diameter of the bore no more than 5 percent larger than the outside diameter of
the conduit or duct being installed.
625.15 Power Service. Furnish and install all
equipment necessary to provide a complete electrical service to the roadway
lighting facilities.
The
power service equipment includes, but is not necessarily limited to: poles or
other support structure for the mounting of the equipment, hardware for dead
ending an overhead service drop or trench and conduit for receiving an
underground service line, lightning arrestor when required, meter base,
customer service disconnect, magnetically held lighting contactor,
photoelectric cell and Hand-Off-Automatic switch for control of contactor, over
current protection devices for each individual lighting circuit, enclosures,
conduits, fittings, cables and connectors.
If
the power service has multiple enclosures, mark each enclosure in white letters
engraved on a black plastic placard with the function of the equipment
contained therein such as “SERVICE DISCONNECT”, “LIGHTING CONTACTOR”, “LIGHTING
PANEL”, or other appropriate designation.
When
an apparatus enclosure contains circuits above the 600 volt class, mark the
enclosure in white letters on a red plastic placard with the warning
“DANGER-HIGH VOLTAGE” on each enclosure door.
Install
each photoelectric cell facing North unless the
Engineer directs that a specific cell face otherwise to reduce interference
from surround lighting.
Bond
all metallic portions of the supporting structure, equipment housings and
conduits properly and to an adequate earth ground.
Install
a wood or plastic wire moldings from grade to 3 feet
(1 meter) above grade over any grounding cables installed on a wood pole.
Coordinate
and cooperate with the power company in the making of the connections to
establish electrical service. Charges made by the power company for
establishing of the account, extension of company facilities, connection of
customer equipment to the power company facilities and energy will be borne by
the maintaining agency.
625.16 Grounding. Connect each light pole or light tower
to a local earth ground.
Connect
each power service to a local earth ground.
Provide
continuity of grounding by bonding the metallic portions of fixtures, apparatus
enclosures, supports, conduits, raceways, junction boxes and pull boxes
together and connecting to earth ground. At a light pole or a light
tower, install a bonding cable between the grounding bushing on each metal
conduit and the ground lug or bolt in the pole base. At a junction box or
a pull box, install a grounding bushing on each metallic conduit not bonded to
the box through the conduit connector, and install a bonding cable between the
grounding bushings on the conduits and the ground lug or bolt in the box.
For
a light pole, light tower, power service or other such item mounted
independently, install one or more grounding electrodes.
For
a luminaire, light pole, light tower, switch enclosure, or other such item
mounted in or on major highway structures (i.e. bridges),
connect the item to the structure grounding system.
For
a lighting contactor, lighting circuit panel or other such item mounted in a
building (i.e. motorists services building, weigh station scale house, etc.),
connect the item to the grounding system provided for the building.
For
each bridge, wall, or other structure having electrical elements contained
therein or attached thereto, furnish all materials necessary including
grounding electrodes and install a complete structure grounding system to bond
all exposed metallic portions of the structure (i.e. beams, railings, etc.)
electrically together and connect those items to good earth ground. In
the case where structures are separate but adjacent, connect the multiple
structures together to avoid any difference in earth potential between the
structures.
Make
the permanent connection between the each ground rod and the grounding
conductor by exothermic welding.
If
the earth resistance measurement exceeds 10 ohms for a ground for a traffic
signal controller or a light tower or 25 ohms for any other ground, install a
second ground rod at least 20 feet (3 meters) from the first and temporarily
connect the second rod to the first. If the earth resistance still
exceeds the above specified values, permanently connect the first two rods
using the same type of cable used for the grounding conductor and continue to
add rods one at a time as directed by the Engineer.
Where
rock does not permit the driving of ground rods, develop an earth connection by
constructing a grid from the partially driven rods supplemented by buried bare
cable as directed by the Engineer.
625.17 Wiring and Cabling. Furnish and
install electrical wires and cables of the types and sizes required with no
in-line splices between terminations at devices unless specifically called for
by the plan or directed by the Engineer.
Install
wire mesh cable grips on vertical runs of wire or cable in poles and attach
said grips to the “J” hook at the tops of the poles in such a manner as to
prevent the weight of the vertical run from abrading the wire insulation or
cable jacket where the wire or cable passes into or from the pole.
Identify
all wires and cables, except bare ground bonding cables, as to circuit and
function with tags or bands in the base of each light pole or light tower, each
junction box or pull box, each apparatus cabinet, and other similar locations.
Pay
out each wire, cable and duct cable by “unwinding” it from the shipping reel,
spool or coils and not allow the wire cable or duct-cable to “spiral” from off
the side of the spool reel or coil. In addition when wire cable or duct
cable is being placed in trench, move the reel spool or coil along the side of
the trench to allow the wire or cable to pay out into the trench as directly as
practical. Seal the ends of each run of duct cable in the same manner as
conduit as each run is installed.
Do
not install duct cable when the temperature of the duct-cable cannot be kept
above 32 °F (0 °C) except with the permission of the Engineer.
If
the end of a wire or cable or duct must stand exposed to the elements or
construction activities, protect said exposed end by enclosing it in a plastic
bag or wrapping it with tape until the termination or connection can be made.
625.18 Connections. Make each wire and cable
connection above grade (i.e. bases of light poles or light towers, junction
boxes on structure or in concrete barrier medians, etc.) with an approved cable
connector kit. Use quick disconnect type kits in the base of each light
pole with a fused type in each line or phase conductor. Plug unused line
side wire opening in each connector kit installed in the base of the light pole
at the outer end of a circuit.
Make
each cable connection below grade (i.e. pull boxes, junction boxes in retaining
walls, etc.) with a cable splicing kit.
Protect
partially assembled connections from damage and the elements.
625.19 Testing of Installations. Furnish
equipment and personnel to perform each test as an incidental to the
construction of the lighting installation. The Engineer shall witness
each test and judge the results.
A. Equipment Calibration. Submit to the Engineer the types, styles, or catalog
numbers of all testing equipment to be used for such tests. Include a
current Certificate of Calibration for each instrument showing that the
instrument is in current calibration using standards traceable to The National
Institute of Standards in accordance with the manufacturer's recommended
process by a service center authorized by the manufacturer to calibrate the
instrument. Certify and demonstrate to the satisfaction of the Engineer
that the instrument has remained sealed since the calibration, and that the
manufacturer's recommended process for ensuring that the instrument is in
working order and producing valid results has been followed in conducting the
test.
B. Grounding Electrodes and Grounding
Systems. Furnish two certified copies
of the completed test records to the Engineer on test reporting forms supplied
to the Contractor by the Engineer or on alternate forms approved by the
Engineer.
Measure the earth
resistance in ohms of each ground immediately after it is installed and before
the ground is attached to the item being grounded.
When the ground
connection is by driven ground rods, measure each rod separately. In the
event that a ground rod has a high resistance and additional rods are being
added, measure the earth resistance of the combined group.
Measure a structure
grounding system at each point where an exposed metallic item is to be
connected to the system. Where driven ground rods are used as the
electrodes of the structure grounding system, measure each ground rod
separately prior to measuring the system.
Measure each ground
grid at the each point where equipment is to be connected to the grid.
C. Circuit Continuity. Upon completion of each lighting circuit but prior
to energizing the circuit, verify the continuity of each conductor of the
lighting circuit from the power service to the load side socket in the line
side of the quick disconnect connector kit in the base of each light pole and
the line side of each disconnect switch at each light tower, lighted sign and
underpass lighting system shall be verified. Demonstrate that there is no
cross connection between the conductor being tested and any other conductor
(including conductors for other circuits) or earth ground. Conduct this
test by applying a low test voltage between the conductor under test and one of
the companion conductors for the same circuit and demonstrating that the test
voltage is available between only those two conductors at the power service;
the load side socket in the line side of the quick disconnect connector kit in
base of each light pole; and the line side of each disconnect switch for a
light tower, a lighted sign or an underpass lighting system and repeating the
process until all possible pairs have been so checked. Throughout this
test, ensure that each disconnect switch is in the open position and that the
load side of each connector kit is unplugged. Temporarily disconnect the
grounded neutral conductor from earth ground and check all pairings involving
the neutral after which again connect the neutral to earth ground and check all
pairings, both those involving the neutral and those that do not.
D. Cable Insulation. After the continuity of a conductor has been
verified, test the insulation of that conductor and its connections.
Ensure that each disconnect switch is in the open position and that the load
side of each quick disconnect connector kit is unplugged during this
test. Temporarily disconnect a grounded neutral conductor from earth
ground when it is being tested. In addition, when a grounded neutral is
under test and the circuit utilizes local equipment earthing
rather than a continuous equipment grounding back to
the power service, temporarily connect one of the companion line conductors to
provide the equivalent of the continuous equipment grounding cable.
When the circuit
conductor is comprised of both new wire or cable and wire or cable installed
prior to the current project, test the insulation by the megohmmeter
method and the resistance of the conductor under test to earth ground or any
other conductor shall exceed 10 megohms.
When the circuit
conductor is comprised of entirely new wire or cable, test the insulation by
the high potential method in accordance with Supplement
1003.
E. Lowering Device Operation. Demonstrate to the Engineer that lowering devices on
any luminaire supports so equipped operate properly by lowering and raising the
luminaire assembly through the full range of motion of the device for each
device on two separate occasions at least 10 days apart. The Engineer
shall record the dates of operation for each device and in case of failure the
details of both the failure and the date and details of the correction.
The Engineer will consider a particular unit satisfactory when the device has
operated twice in succession on separate occasions without malfunction.
F. System Performance. Prior to acceptance and after all other tests are
done, the completed lighting system shall be operated on electrical energy from
the power company through the permanent customer service connection in its
intended normal manner for ninety consecutive days. Notify the Engineer
at least 3 days prior to the commencement of this performance test. In
addition to the beginning and ending dates of the test period, the Engineer
shall record the date and details of each failure and the date and details of
the repair. The Engineer will consider the performance satisfactory when
the lighting installation has operated for ninety consecutive days without a
failure due to the workmanship of the Contractor.
625.20
Plastic Caution Tape. Install tape approximately 6 to 10
inches (150 to 250 mm) below the final finished grade. Place with the
printed side up and parallel with the finished surface. Insure that the
tape is not pulled, distorted or otherwise misplaced in completing the trench
backfill.
625.21 Removal of Lighting Equipment.
A. Luminaire Removal. Remove the luminaire from its support taking care not
to damage the luminaire, support or wiring connections. If the luminaire
is to be reused within the same project, carefully store the luminaire on the
project site. If the luminaire is to be reused, but not within the same
project, carefully store the luminaire on the project site for pick up by the
owner. If the luminaire is not to be reused, properly dispose of the
luminaire off the project site.
B. Luminaire Support
Removal. Remove the luminaire support taking care not to damage
the luminaire support, foundation or structure to which it is attached or
wiring connections. If the luminaire support is to be reused within the
same project, carefully store the luminaire support on the project site.
If the luminaire support is to be reused, but not within the same project,
carefully store the luminaire support on the project site for pick up by the
owner. If the luminaire support is not to be reused, properly dispose of
the luminaire support off the project site.
C. Luminaire Support
Foundation Removal. Remove the luminaire support foundation a minimum of
one foot (0.3 m) below finished grade or clear of proposed construction,
backfill the resultant depression with compacted soil and restore the disturbed
area.
D. Pull Box Removal. Remove the pull box, properly dispose of it off the
project site, backfill the resultant depression and restore the disturbed area.
E. Disconnect Existing Circuit. Disconnect the portion of the lighting circuit to be
removed or abandoned from the portion of the circuit to remain in service at
the designated node point. Remove the cable from the link no longer to
remain in service from the node point enclosure. Remove the conduit or
duct for the link no longer in service from the node point enclosure and
properly close the resultant openings in the enclosure unless the conduit or
duct is to be left in place to allow another circuit link to enter the node
enclosure.
F. Power Service Removal. Remove the existing power service equipment and
properly dispose of the equipment off the project site. Equipment to be
removed includes the wood pole or other supporting structure, foundation work
pads, equipment enclosures, photoelectric cell and associated conduits, wiring,
overhead or underground service lateral and all other appurtenances. Cut
the cable enclosed in conduit which runs into the ground at the lower end of
the bend to horizontal approximately 2 feet (0.6 m) below grade. Backfill
the resultant depression and restore the disturbed area.
Coordinate with the
power company to insure that the company disconnects the service and that items
which belong to the power company that are removed, such as the meter base, are
returned to the power company.
625.22 Method of Measurement. Bracket arms
will be included with the light pole, light tower or combination support on
which they are mounted for payment. However, when a bracket arm is to be
mounted onto an existing support or a support provided by another aspect of the
project, it may be a separate item for the purpose of payment in which case
payment will be made for each bracket arm.
Transformer
bases will be included with the light pole, light tower or combination support
on which they are mounted for payment. However, when a transformer base is to
be fitted to an existing light pole, it may be a separate item for the purpose
of payment in which case payment will be made for each transformer base.
Light
pole anchor bolts will be furnished with the light pole and the setting of the
anchor bolts included with the foundation. However, in the case of a
light pole mounted onto structures such as bridges and retaining walls where
the bolts normally furnished with the light pole are not of the proper length
and shape and/or the setting of the bolts must be done when the structure is
constructed rather than being at the time of construction of the light pole
foundation, the bolts shall be a separate item for payment in which case
payment will be for each bolt with the count being the number of bolt ends
projecting for the anchoring of the light pole. Separate payment shall
also be made when the bolts are being set in a normal light pole or light tower
foundation but the light pole or light tower is not being furnished by the
Contractor or by others to the Contractor.
Foundations
for light poles or light towers include excavation, reinforcing steel,
raceways, concrete, backfilling, and when required the 8 foot or 10 foot
foundation section of concrete barrier, and the disposal of surplus excavation.
For light poles or light towers mounted on median barrier or retaining walls,
the junction box at the point where the stub conduit to the light pole or tower
joins the main lighting circuit raceway and the stub conduit from the junction
box to the light pole or light tower are also included. Anchor bolts,
conduit ells and surface restoration not included elsewhere are also included
with the foundation. Junction boxes include the drain.
Pull
boxes include the aggregate for base.
Power
service includes the control equipment, the support and foundations on which
the equipment is mounted, the pull boxes with underdrain
for gathering the lighting circuits into the control equipment at the power
service location, ground rods and incidentals required for a completed power
service. Also included are any poles, conduits, wire and cable to be
provided by the owner to receive the incoming power from the power company.
Structure
grounding system includes any ground rods or ground grids required as part of
the system.
Ground
grids include any ground rods required as part of the grid and includes the
associated grounding conductor and connections from the resultant grid to the
first point (or points) of connection. Ground grids that result from the
addition of ground rods as a result of earth ground resistance measurements
will be the sum of each ground rod installed such sum will also include all
connecting cable and trenching.
A
ground rod includes the associated grounding conductor and connections from the
rod to the first point of connection.
Trench
will be measured to the center of a light pole foundation, the center of a
light tower foundation, the center of a pull box, the center of the pole of an
embedded pole mounted power service, the center of the foundation for a power
service with a foundation, or the wall of the building when the power service
for the lighting in, on or within the building with no allowance for elevation
change. The payment for trench includes all excavation, granular and
other backfill material, compaction, disposal of surplus materials and
restoration to match surrounding surface including any seeding, sodding or
other plantings which were disturbed and the replacement of any minor items
such as guardrail or fence panels, and return to former position and mounting
of items such as trash containers, planter boxes or parking meters and small
signs which were temporarily moved to facilitate the trenching. The payment
for trench in paved areas includes the aforementioned and in addition sawing
and removal of pavement, along with the repaving over the trench. Trench in
paved areas shall be separated for payment into Type A for pavements or
sidewalks less than 6 inches (150 mm) thick and Type B for pavements 6 inches
(150 mm) or greater.
Conduit
will be measured to the center of a light pole foundation, the center of a
light tower foundation, the center of a pull box, the center of the pole of an
embedded pole mounted power service, the center of the foundation for a power
service with a foundation, or the wall of the building when the power service
for the lighting in, on or within the building with no allowance for elevation
change. The payment for conduit includes couplings
(plain, expansion, and alignment), bends, hubs, bushings, condulets
and other such appurtenances but not junction boxes and pull
boxes. Conduit to be encased in concrete or installed by jacking or
boring will be paid separately from conduit to be traditionally installed.
Concrete and other materials for encasement or the jacking or boring are
included with such conduit where specified.
Distribution
cable will be measured to the center of foundation, pull box, junction box or
power service, plus an allowance of 5 feet (1.5 meters) on each end except for
a power service where the allowance will be 10 feet (3 meters) to allow for
slack and connections with the sum multiplied by the number of conductors
required.
Pole
and bracket cable will be measured as the light pole support height plus the
designated arm length with the sum multiplied by the number of conductors
required. For twin arm poles the sum shall be increased by the length of
the second arm plus the length of the first arm.
Duct
cable will be measured to the center of foundation, pull box, junction box or
power service, plus an allowance of 5 feet (1.5 meters) on each end except for
a power service where the allowance will be 10 feet (3 meters) to allow for
slack and connections with no multiplier for the number of conductors.
Duct-cable includes the cable(s) and being a factory assembly is differentiated
by the number and size of the conductors in each assembly.
Plastic
caution tape will be measured to the center of a light pole foundation, the
center of a light tower foundation, the center of a pull box, the center of the
pole of an embedded pole mounted power service, the center of the foundation
for a power service with a foundation, or the wall of the building when the
power service for the lighting in, on or within the building with no allowance
for elevation change.
625.23 Basis of Payment. The Department
will pay for accepted quantities at the contract prices as follows:
Item
Unit
Description
625
Each
Luminaire, (Functional Type),
(Housing Size if Conventional),
(Light Distribution), (Lamp Wattage),
(Light Source), (Voltage)
625
Each
Glare Shield
625
Each
Light Pole, (Pole Style),(Design Number)
625
Each
Light Tower,(Design Number)
625
Each
Light Pole Anchor Bolts
625
Each
Light Pole Foundation
625
Each
Light Tower Foundation
625
Each
Junction Box, (Length × Height × Depth)
625
Each
Pull Box, (Material Type), (Length × Height ×
Depth)
625
Foot
(Meter)
Conduit, (Material Type), (Nominal Diameter)
625
Foot
(Meter)
Trench
625
Foot (Meter)
Trench in Paved Area,(Type)
625
Foot
(Meter)
Conduit Jacked or Drilled,(Material Type),
(Nominal Diameter)
625
Each
Power Service
625
Each
Ground Rod
625
Each
Ground Grid
625
Each
Structure Grounding System
625
Foot
(Meter)
Pole and Bracket Cable, (Size of Conductors
in AWG), (Voltage Rating)
625
Foot
(Meter)
Distribution Cable, (Size of Conductors in
AWG), (Voltage Rating)
625
Foot
(Meter)
Duct Cable, (Duct Diameter) with
(Number of Conductors),
(Size of Conductors in AWG),
(Voltage Rating) Conductors
625
Each
Connection
625
Each
Service to Underpass Lighting
625
Each
Portable Winch Drive Power Unit
625
Each
Luminaire Removed
625
Each
Luminaire Support Removed
625
Each
Luminaire Support Foundation Removed
625
Each
Pull Box Removed
625
Each
Disconnect Circuit
625
Each
Power Service Removed
625
Foot
(Meter)
Plastic Caution Tape