CHAPTER 6 TRAFFIC SIGNAL DESIGN – CABINETS AND
d on the traffic signal plans or associated bid documents. The traffic signal power supply is an electrical device in the cabinet that converts AC to correct DC voltage for various devices in
d on the traffic signal plans or associated bid documents. The traffic signal power supply is an electrical device in the cabinet that converts AC to correct DC voltage for various devices in
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Interconnect/Communications: Where installed in a system, the traffic signal cabinet shall have facilities for the appropriate communications.
The minimum vertical clearance from the top of the cabinet to the lowest communication cable facility is 31 inches. The minimum vertical clearance from the bottom of the cabinet above
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The National Highways Type 600 Cabinet is equipped with racking, power supply distribution and communications cable termination, designed to provide adequate conditions, including a temperature-controlled environment, to ensure the correct operation of the roadside communications equipment installed inside.
These cabinets combine a compact footprint with added vertical space to house more advanced traffic management equipment, making them ideal for both vehicle and pedestrian signal control in urban and suburban environments.
A minimum vertical clearance of 6 inches must be maintained between any strand-mounted equipment of cable expansion loops and the communication cables below. Reduced spacing is permitted if agreed to by the existing communication cable owner and communicated to PPL in writing.
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