2010 Construction and Material Specifications - Ohio Department of ...

827
733.03
(7) Furnish loop detector unit with an LED or LCD display
indication of call strength ( L/L or equivalent). This display shall be a bar graph
or numerical display with at least eight (8) discrete levels indicated.
If vehicle detector types other than “loop” detectors are required
by the plans, provide these detectors by separate bid item.
Furnish TS-1 cabinets according to the Department’s Qualified Products List
(QPL).
B. Type TS-2.
1. Furnish TS-2 cabinets that utilize a high speed data channel to connect
the controller unit, malfunction management unit, rear panel (terminals and
facilities), detectors and bus interface units and also comply with the general
requirements of 733.03. Furnish a prewired cabinet with malfunction management
unit, loop detector units, and all accessory equipment as specified in NEMA TS-2,
except as follows:
a. Section 5.3.4, use detector racks for both Type 1 (A1) and Type 2
(A2) controller units.
b. Section 5.4.2.1, if a power service disconnect switch is located
before the controller cabinet, the neutral (AC-) and the grounding bar in the
controller cabinet shall be connected together.
c. Section 5.4.2.7, provide an incandescent type light.
d. Section 5.4.2.7.2, provide the incandescent lamp.
e. Section 5.4.2.7.3, provide the door actuated light switch.
f. Section 6.5.2.2.1, provide 2-channel detector units, without
delay/extension features (Type A).
g. Section 7.2, construct cabinets of cast or sheet aluminum.
h. Section 7.3, provide a Size 5 cabinet for four phase or less pole
mounted cabinets, Size 5 for four phase or less ground mounted cabinets, and Size
6 for 5 phase or more ground mounted cabinets. Supply larger cabinets if required
to house the equipment to meet the plan requirements; such as master controllers,
preemption devices, 16 position backpanels or special detection units.
i. Section 7.5.7, ensure that the police panel contains switches for
AUTO/FLASH, SIGNALS ON/OFF and AUTO/MANUAL in the police panel.
Furnish a pushbutton with a 5-foot (1.5 m) cord.
j. Section 7.7.3, supply unpainted cabinets.
2. Furnish loop detector and pedestrian inputs that have lightning/surge
protection as specified in 733.03.A.2.f.
3. Include loop detector racks with the necessary number of two-channel
loop detector units with the cabinet. When shown on the plans, supply delay and
extension timing capability on the detector unit; otherwise, provide the controller
unit software with these features. If vehicle detector types other than “loop”
detectors are required by the plans, provide these detector units by separate bid