455 street lighting systems

8/10/2019 455 Street Lighting Systems

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TECHNICALSPECIFICATION455

STREETLIGHTINGSYSTEMS PAGE1of6

Rev.5/10


STREETLIGHTINGSYSTEMS

455.1 SCOPEOFWORK

This technical specification covers the furnishing of all labor, materials, testing, submittals,

tools,andequipmentnecessary to install lightdistribution fixtures,poles,meteredcontroller,

concretebases,wiring,andconduitof thetypeherein identified,completeand inplaceatthe

locationsandtothedimensionsanddetailsshownontheplansorasdirectedbytheEngineer.

This work includes miscellaneous items necessary for a complete installation including

excavation,backfilling,warningtapes,siterestoration,etc. Italsoincludesthecoordinationand

costsassociatedwithpublicutilitywork. This technical specification coversbothdecorative

andcommerciallightingsystems. ItistheintentionoftheTowntohaveconsistencyamongthe

typesof

fixtures

maintained

by

the

community.

455.2 MATERIALS

A. DecorativeStreetLightSystems

1. Fixtures

The mainframe assembly shall consist of cast aluminum upper and lower cage frames

weldedsecurelyto4slottedextrudedaluminumcagelegstoformaonepieceassemblyand

secured internally to aballast housing with four (4) 20 screws. (Product equivalent

HanoverLantern,Inc.DrawingNo.L49561).

2. Lenses

Thelensesshallbeofa0.125inchthickclearpolycarbonate.

3. Ballasts

Theballasthousingshallbemadeofcastaluminumwithaminimumwallthicknessof3/16

inches. The access door must have double concealed hinges and be secured by a

tamperproofstainlesssteelscrew. Theballastshallbe150watthighpressuresodium. Itshallbemountedonaslidetraywhichisequippedwithaquickdisconnectdeviceandcan

beremovedwithouttheuseoftools. Ballastshallbewiredfor120volts.


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4. LightDistributionandElectricalRequirements

Thefixtureshallbewiredforamaximumwattageof150highpressuresodiumlamptypeS

55mogulbasewith a topmountedType IIIdistribution reflector (highpressure sodium

lampshallbeprovided). A#743/4frostedglasschimneyshallbeplacedinthefixturesbase

fordecorativepurposes.

5. Poles

Thepolesprovidedshallconsistofonepieceextrudedaluminumcastingsconstructedwith

aminimumwallthicknessof0.125inches. Poleshallbe120. Thealuminumpostshall

bewelded to an anchorbasewith fourboltopenings. A large conduitopening shallbe

provided as well as a wiring access door. The access door shallbe secured with four

stainlesssteelscrews. Thepolesshallbeprovidedwithfour(4)5/8inchdiameterby18inch

longanchorboltstobeembeddedaminimumof16inchesintotheconcretebase. Allbolts

andscrews

to

have

anti

seize

applied

to

threads.

(Product

equivalent

Hanover

Lantern,

Inc.

DrawingNo.316 7Thru18).

6. ExteriorFinish

Allfixturesandpolesshallbecleanedandrinsedinahotdipcleaningsolventorequivalent

to removeallgrease,dirtandblemishesbeforepainting. Thepolesand fixtures shallbe

factorypaintedsatinblack.

7. LightPoleBases

The lightpolebase(s) shallbeaminimumof4,000PSIprecast concreteas shownon the

Town of Windsor Standard Details and shall include PVC conduit, pole fasteners and

groundconduit. Thetopofthebaseshallbe15inchessquareandtapertoaminimumof20

inchessquareatthebottom. Thedepthshallbe48inches.

8. MeteredStreetlightController

Theelectricserviceshallbe100amp.,I phase,3wire,120V/240V. Thecontrollerassembly

shallincludethefollowing:

1EA MeterSocket

1EA MainCircuitBreaker, 100amp,2pole,GeneralElectricMoldedCaseModelNo.

THQL 21100,orapprovedequal

1EA CircuitBreaker,60amp.,2pole,GeneralElectricMoldedCaseModelNo.THQL

2160orapprovedequal

1EA Contactor,electricallyheld,60amp120vcoil,2pole,CutlerHammerModel#C30

DN2ABorapprovedequal


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1EA Photocell,cabinetmounted1800watt,120v

1EA GFCIReceptacle,20amp.,125volt,incontrolpanel

1EA Incandescentlampholderwithpullchain

1EA 100amp.mainlugonly,singlephase,12circuitsurfaceloadcenter,GeneralElectric

TypeTLM1612C,orapprovedequal

1EA Timer,60minuteswithholdfeature,IntermaticModelNo.FF60MH(servesas on

andoff testoverrideswitch),orapprovedequal

Thecontroller shallhaveappropriatecontactors,circuitbreakers,groundingbars,wiring,

andappurtenancesforproperoperation. An onandoff overridetimershallbeprovided

fortestingpurposes. Ifthelightsareoffandthetimerisplacedintheonmodethenthe

lightsshallcomeonandoverridethephotocell. Thecontrollercircuitpanelshallcontaina

20amp.,125voltGFCIreceptacleandanincandescentlampholderwitha60wattlampand

apullchain located inanupperquadrantof thepanel. Thecontroller is tobe furnished

withonelightingcontactorcontrolledbythephotocell.

9. Cabinet

ThecabinetshallbeaNEMAstandardsizeMcabinetmadeofinchthickaluminumand

shallhaveoveralldimensionsof50incheshighby30incheswideby18inchesdeepunless

otherwise approved by the Engineer. The cabinet finish shall be natural aluminum

(unpainted). No auxiliary switchpaneldoor shallbeprovided. Themaindoor shallbe

equippedwithaCorbinNo.15481 tumbler type lock (industry#2 lock)and two (2)keys

shallbefurnishedtotheTown.

10.

ControllerBase

ThebaseshallconformtothedrawingsasshownontheTownofWindsorStandardDetails.

ThebaseshallbemadeofClass C concreteandmaybeprecast. Itshall includeone (1)

dedicated2 inchPVCelectricalgradeconduit sweep for theutilitycompanypower feed,

one5/8inchby8footcoppergroundrod,aminimumof42inchpolyvinylchloridesweeps

forwiringtothelightpoles,and23/4by18inchgalvanizedanchorbolts.

11.ConduitandWiring

Conduitshallbe2inch,schedule40PVCelectricalgradeconduit. Wiringshallconsistof3

1/0 THW aluminum wire, and a #6 copper ground unless otherwise approved by the

Engineer.


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B. CommercialStreetLightSystems

The commercial light standards and luminaire shall conform to Form 816, SectionsM15.01

throughM15.05,withthefollowingexceptions:

1.

TheCommercialLuminaireshallbeofaGEtypeM250A2POWR/DOORLuminaireWithCutoffOpticsorapprovedequal.

2. Mountingheightoflightfixturesshallbe326feetabovegrade.

3. On commercial lighting systems, contactor number one is to control even numbered

light poles and contactor number two is to control odd numbered light poles. A

separate 2 pole, 60 amp circuit breaker, shall power each contactor. The normal

operationofalllightsistobecontrolledbythephotocell.

4.

Cabinetand

Controller

Base

shall

meet

the

above

requirements

of

Section

455.2.A.9

and

455.2.A.10unlessotherwiseapprovedbytheEngineer.

455.3 SUBMITTALS

The followingsubmittalsshallbesubmitted to theEngineer forreviewandapprovalprior to

installation:

Manufacturer(s)cutsheet(s)onfixtures

Manufacturer(s)cutsheet(s)onlightpoles

Manufacturer(s)cutsheet(s)onlightpolebases

Manufacturer(s)cutsheet(s)oncontrollercabinet

Manufacturer(s)cutsheet(s)oncontrollerbase

455.4 CONSTRUCTIONMETHODS

A. DecorativeStreetLightSystems

1. Cabinet

Ainchblackplywoodbackboardshallbemountedontheinsidebackwallofthecabinet

andshallserveasthemainpanelforthemountingofcontrollercomponents.Thephotocellshallbe installedon theupperportionof thecabinet. Thephotocellshallbemountedso

thatthecabinetretainsitsweatherproofcharacteristicsaroundthemountingarea. Autility

company approvedmeter socket shallbemountedon the right sideof the cabinetwhen

viewed from the front. Adedicated2 inchPVCpipeshallrun from theconcretecabinet

baseoutsidethecabinettothemetersocketfortheutilitycompanyservicewires.


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2. LightPoleandControllerBases

TheContractorshallinstallandlevelthebasesasshownontheplans. Thebasesshallbeset

on8inchesofcompactedprocessedaggregateonastablepreparedsubgrade.

3. ConduitandWiring

Conduitshallbeinstalledaminimumof24inchesbelowgrade. Conduitshallbeconnected

with approved couplings to the base sleeves incorporated within the light pole bases.

Electricalwiringwillextendthroughthebasesforconnectiontoeachpole. Theworkshall

includeallexcavation,backfill,materials, laborandsurfacerestoration, including loaming

and seeding,and temporaryandpermanentpavement replacement. Where such surface

restorationisrequired,allworkshallbeperformedinaccordancewiththeTownStandards.

Warningtapeshallbeinstalledaminimumof1footaboveallelectricalconduit. Standoffs

shallbeused in accordancewith the servingpublicutility companyor asdirected. The

Contractorshallalsosupplyandinstallall itemsnecessaryto insureproperfunctioningof

thelighting

system,

including

photocell(s),

ground

wire

to

be

made

to

the

ground

lug

in

the

polebaseasshownontheelectricaldiagram,inlinefusesandholders,nondelay5amp300

volt capacity for each pole, and appropriate connectors, miscellaneous wiring and

appurtenantitems.

4. MeteredStreetlightController

All construction methods for this item shall be in accordance with the manufacturers

constructionmethodsandtheNationalElectricalCode (NEC). Eachstreet lightcontroller

installationshallbe locatedandmountedasdirectedby theEngineerorasshownon the

plans.

B. CommercialStreetLightSystems

The installationofcommercial street light systems shallconform toForm816,Sections10.03,

10.04,and10.08. Theinstallationofthecabinetshallconformtotheabove455.4.A.1. Allother

installationshallconformtoapplicableAASHTO,CTDOT,andNECstandards.

C. PublicUtilityWork

Wherepublicutilityworkisrequired,theContractorshallmakearrangementstoensureproper

coordinationofwork. If required, theContractor shallprovide all excavation,backfillingofserviceconduit,labor,surfacerestorationandanyappurtenantwork,fromthepowersourceto

theservicemeternecessaryforreceivingelectricalserviceasdescribed. Costofthisworkshall

beincludedinthelumpsumpriceforthecontroller.


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455.5 MEASUREMENT

Measurement for lightpoles, fixtures, controllers andbases,willbebasedon thenumberof

poles,fixtures,controllers,andbasesofthetypespecified,completedandinplace.

Measurementforconduitandwiringwillbebasedonthenumberoflinearfeetofconduitandwiringinstalledandcompleted.

455.6 PAYMENT

PaymentforthisitemwillbeatthecontractunitpricesperEachfordecorativeandcommercial

light poles, fixtures, controllers and bases and per Linear Foot for conduit and wiring,

completedandaccepted inplace includingall labor,materials, testing, submittals, tools,and

equipmentnecessarytocompletetheworkasspecified.

PAY

ITEM

PAY

UNIT

DecorativeLightPoleandBase EA

CommercialLightPoleandBase EA

Conduit L.F.

Wiring L.F.

ControllerandBase EA

455 street lighting systems

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