Agmt13 Pacific Electric Contracting, Inc.

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� . • � F. Contractor shall position loops so that no portion of any loop lies over conduit. G. Contractor shall make tentative layouts of all loops as shown on plans, then arrange for confirmation of layouts by the City Engineer prior to sawcutting. H. Ail loops shali be brought to pull box individually through a chase and conductors shall have two turns of twist per foot and spliced in pull box. I. Wire shali be installed in a slot sawcut in the pavement. Residue resulting from slot cutting operations shail not be permitted to fiow across shoulders or lanes occupied by public traffic and shall be removed from the pavement surface by vacuuming or other approved method before any residue flows off of the pavement surface. Residue from sawcutting operations shall be disposed of outside the highway right of way in conformance with the provisions in Section 7- 1.13 of the Standard Specifications. J. Slots cut in the pavement shall be smooth, washed clean, blown out and thoroughly dried before installing conductors. K. Loop wire shall be Type 1, Type RHW-USE neoprene-jacketed or Type USE cross-linked polyethylene insulated, No. 12, stranded copper wire, the minimum insulation thickness at any point shall be 40 mils, in accordance with Section 86-5.01 A of the Standard Specifications. One continuous, unbroken length shall be used to form a loop of the number of turns required and the lead-in from loop to junction box. L. The lead-ins from the detector shall be Type B, lead-in cable shall be insulated with 20 mils of high-density polyethylene. The conductors shall be twisted together with at least 2 turns per foot and the twisted pair shall be protected with a copper or aluminum polyester shield. A No. 20, minimum, copper drain wire shall be provided and connected to the equipment ground within the cabinet. The cable shall be provided with a high-density polyethylene or high-density polypropylene outer jacket with a nominal thickness of 32 mils. An amorphous interior moisture penetration barrier of nonhydroscopic polyethylene or polypropylene fillers shall be provided in accordance with Section 86-5.01 A. The lead-in shall be spliced, soldered and taped to the loop at the junction box. The shield shall be connected to the controller cabinet ground bus. Where spade terminals are used to secure the lead-in wire to field terminal blocks, the spade terminals shall be soldered as well as crimped to the UF wire. All detector lead-in cable shall be continuous - no splicing is permitted. M. After the loop conductors are installed in the pavement, the slots shall be filled to within 1/8" of the pavement surface with the appropriate sealant. All excess shall be removed. N. Detector loop lead-ins shall be installed in conduit from the gutter to the splice box. After installation of loop wires, gutter end of conduit is to be sealed with duct seal and excavation is to be filled with sand to within 1-1/2" of road surface and capped with asphalt. O. All splices shall be soldered to ensure constant low resistance and must be insulated in such a manner that the installation maintains resistance to ground of not less than 100 megaohms. To ensure that the loop installation is correct, a continuity check of the loop writing and a resistance check of this loop-to-ground shall be performed using a "megger" or other suitable insulation tester, with a representative of the City Engineer present. Loop readings that decrease below 20 megaohms during the guarantee period shall be considered below minimum limits and shall require replacement. P. The contractor shall test the detectors with a motor-driven cycle, as defined in the California Vehicle Code, that is licensed for street use by the Department of Motor Vehicles of the State of California. The unladen weight of the vehicle shall not exceed 200 pounds and the engine displacement shall not exceed 100 cubic centimeters. Special features, components or vehicles designed to activate the detector will not be permitted. The contractor shall provide an operator who shall drive the motor-driven cycle through the response or detection area of the detector at SIGNALS, LIGHTING,AND ELECTRICAL SYSTEMS EAST BAYSHRORE ROAD STREET LIGHTING PROJECT 16500-15