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

733.03
item. If the special bid detector units use standard TS-2 detector racks, furnish the
racks as part of the pre-wired cabinet.
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.
4. Furnish switches to control the controller unit and cabinet functions as
specified in 733.03.A.2.k.
5. Furnish load switches that have both input and output indicators.
6. The primary surge protection device (SPD) shall be an EDCO SHA-
1250 or approved equal. A plug-in base shall be used to hold the device. All
wiring connections shall be made to the base, and appropriate cabinet clearances
maintained, to allow the SPD module to be relaced by hand without the use of
tools.
Furnish TS-2 cabinet according to the Department’s Qualified Products List
(QPL).
C. Type 332.
1. General. Furnish Model 332A cabinets that meet the specifications
“Traffic Signal Control Equipment Specifications” and “Transportation Electrical
Equipment Specifications”, California Department of Transportation. Ensure that
the manufacturer of the cabinets is listed on the CalTrans QPL at the time of the
project award.
2. Cabinets.
a. Ensure that the cabinets are constructed of aluminum and are
supplied unpainted. An anodic coating is not required. Supply galvanized anchor
bolts with nuts and washers with each cabinet. Furnish 3/4-inch (19 mm) diameter
by 16 inches (0.4 m) minimum length anchor bolts with an “L” bend on the
unthreaded end.
b. Fit the cabinets with a PDA-2 power distribution assembly.
c. When shown on the plans, provide the cabinet with door hinges
that are “right” or “left” mounted when facing the front of the cabinet.
3. Terminals and Wiring.
a. “Hardwire” output files. Do not use printed circuit wiring in the
output file except for the red monitor board.
b. Ensure that the vehicle and pedestrian detector field wiring inputs
connect to side mounted terminal blocks. Install terminal blocks and associated
wiring to the input file. Label the field wiring terminals of the side mounted
terminal block by a permanent screening process to identify the input panel (I or
J), the input file slot number (1 through 14) and the channel terminal (D, E, J, or
K). An example is “I4-E”. Ensure that all terminals on these detector blocks are
accessible without removing equipment from the EIA mounting rack.
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