Street lights shall be installed in accordance with the standards and specifications developed by the Village Engineer and shall be Commonwealth Edison acceptable and maintained.
(A) This item shall be constructed in accordance with the applicable section of the I.D.O.T. “Standard Specifications for Traffic Control Items”, January 1, 1977. The work shall consist of the installation of individual service lighting units including pole luminary, bracket arm, lamp, photocell, and receptacle and wiring.
(B) Lighting unit - pole and bracket arm. The pole shall be of #83-40-8423-0621 aluminum equal to Kaiser Catalogue or equal with a six foot bracket spread; mid block pole, ten foot spread, pole length 22 feet, mounting height 25 feet. All lighting standards shall have a bolt down base and shall be the “breakaway” type.
(C) The aluminum pole shaft shall be a one piece, seamless, round tapered tube of alloy 6063, or metallurgical equal, and shall be full length heat treated after welding on the base flange to produce T6 temper. A handhole, frame and cover shall be provided.
(D) A 5/8" X 8' ground rod shall be installed at each aluminum pole location and connected to the pole with No. 8 stranded copper wire with an aluminum to copper approved lug. A set screw shall be provided in the base of the pole for lug attachment.
(E) The bracket arm shall be of tapered aluminum construction of length specified on the plans.
(F) Luminaries shall be as follows:
(1) The luminaries shall consist of a housing, reflector, refractor holder, lamp sockets, with a two inch cast slipfitter and shall be McGraw Edison “Unidor 250” or approved equal. The ballast components shall be mounted in the luminary for accessibility to the wiring.
(2) The luminary shall provide IES Type II distribution and shall accommodate the required high pressure sodium lamp. Type II fourway refractors shall be used at all intersection.
(G) Ballasts and lamps. The ballast shall be designed to operate an individual high pressure sodium lamp and shall be compatible with the specified lighting unit. The refractor on luminary shall be made of heat resistant Borosilicate glass.
(H) Photocell and receptacle. The luminary shall include an integrally mounted photocell receptacle with internal wiring. The photocell shall be rated for 105-285 volts.
(I) Conductors. All underground electrical conductors shall be one inch diameter unit-duct or equal with electrical conductors, type THW, with 600 volt insulation. No conductor shall be smaller than #6 AWG copper. Voltage drop shall not exceed 5%. Voltage for all standards shall be 120 volts.
(J) Wire shall be buried a minimum of 30 inches below grade. Where unit-duct cross under streets, sidewalks, or private drives, they shall be run in hotdipped galvanized heavy wall rigid conduit not smaller than two inches internal diameter and this conduit shall extend beyond the curb or concrete, as the case may be, for a minimum distance of 12 inches on both sides of the street, or concrete in the case of concrete, or asphalt in the case private drives or sidewalks. On each end of this conduit shall be a bakelite bushing and, after placing wires, this conduit shall be sealed with duck seal.
(K) All trenches must be backfilled and the soil tamped and smoothed. Extra care shall be exercised in trenching, backfilling, tamping and smoothing atop the trench where seeded grass areas have been disturbed by trenching.
(L) Wires for the connecting of the underground cable to the ballast in luminary shall not be less than #12 stranded copper THW type. Connections at base between the pole wires and the underground cable shall be made with split bolt connectors thoroughly taped and pointed after painting with an insulating and moisture-proof paint. No underground splices will be allowed, nor shall the use of aluminum wire be allowed.
(M) Payment. Payment shall be made on a lump sum basis for pole units including pole, bracket arm, luminaire, lamp photocell and receptacle. Wiring cable and galvanized steel conduit shall be paid for on a lump sum basis for cable and galvanized steel conduit installed in place. Lump sum prices for all items listed above shall be included in the lump sum price for street lighting improvements.
(Ord. 1995-0-25, passed 12-26-95)