642 Breakers # 1 and 2 shall provide power for the signal control equipment (controller cabinet). Specifically circuit breaker # 1 shall power the controller circuits and # 2 shall power the flasher and associated circuitry. These two circuits must be of the same polarity. Breakers # 3 and 4 are spare terminals to accommodate future lighting circuits and breakers 3 and 4 must be of opposite polarit y to provide a 240 volt circuit. The Contractor shall make all arrangements for connection to the power supply and shall obtain a meter and meter socket from the power company at the time these are required. The Contractor shall furnish, install, pay ins tallation fee and provide all materials necessary for the power connection not provided by the power company. All external power service wiring from the service head or service point on shall be enclosed in rigid metal conduit; this includes equipment gro und wires. When complete and in place the power service shall provide in the signal controller cabinet, two separate fused 120 VAC, 60 Hz power sources rated at 30 amps each of the same polarity or phase.
660.18 Testing :
660.18.1 Operational Field Tests: Upon completion of the installation of a traffic signal
system, operational field tests shall be run on each and every part of the system. After the initial field tests are run satisfactorily, the Contractor shall conduct a continuous 12 -hour operating test for approval. Upon successful completion of the 12 -hour test and with the approval of the Engineer, a 30-day test period will then be initiated. Final acceptance of an installation will not occur until 30 days of system operation are completed and termed satisfactory by the Engineer. A final inspection may be conducted by the Division at any time prior to completion of the 30-day test. At the option of the Engineer, equipment found to be defective during this inspection may warrant the renewal of the full or any part of the operational test period. In addition, the Contractor shall be responsible for equipment malfunctions that occur during any test period. The Contractor shall repair or replace any defective equipment within 24 hours after bei ng notified by the Engineer. After the repair has been effected, the Engineer may at his option renew any or all of the operational test period.
660.19 Method of Measurement :
660.19.1 Signal Controll ers: Signal controllers shall be measured as a complete unit in
place by intersection or control location. This item shall consist of the complete electrical mechanism for controlling the operation of traffic control signals, including the timing mechani sm and all necessary auxiliary equipment mounted in a cabinet or other enclosure. Included under signal controllers shall be traffic adjusted master controllers and computers and associated equipment. This item shall include cabinets or other enclosures as required.
660.19.2 Detectors :
660.19.2 1-Traffic Detectors: Traffic detectors shall be measured per unit complete
and in place, mounted in a cabinet or enclosure as required. This item shall consist of the detector tuning unit only. The roadway traffic sensors, such as loops, and associated cables outside of cabinet, shall be included in "Miscellaneous Signal" items. Any supplementary cabinets or other enclosures as required for the detector tuning units shall also be included in "Miscel laneous Signal".