Section 49 – Signals, Lighting and Electrical Systems
12/1/03
49.9
CONDUCTOR TABLE
Identification
Insulation Color
Conductor Use Signal Phase Or
Function
Base Stripe
Label
Designation
Conductor
Size
Underground-Line 1 Black None
IR1
As Req’d.
Irrigation
Control
Neutral
White None
IRN
As Req’d.
Neutral
Traffic Signals
White None
TSN
As Req’d.
Neutral
Street Lighting
White None
None
As Req’d.
Traffic Signal
Communications
As Required
As
Req’d.
As Req’d. Per Special
Provisions
As Req’d.
Highway (Street)
Lighting Pull Box to
Luminaire
As Required
As
Req’d.
As Req’d. None
As Req’d.
Multiple Highway
(Street) Lighting
As Required
As
Req’d.
As Req’d. None
As Req’d.
Emergency Vehicle
Preemption
As Required
Black
or As
Req’d.
As Req’d. Per Special
Provisions
As Req’d.
Inductive Loop
Detector Circuits
Vehicle Detection As
Req’d.
None
Per Section
86-5.01A of
State
Specifications
As Req’d.
The second paragraph of Section 86-208B, “Multiple Circuit Conductors” of the State
Standard Specifications shall be deleted and replaced with the following:
At any point, the minimum thickness of any TW, THW, USE, RHH or RHW insulation shall
be 30 mils for conductor sized No. 14 to No. 10, inclusive, and 45 mils for No. 8 to No. 2,
inclusive.
49-2.08.A Signal Interconnect Cable
Signal interconnect cable shall conform to the "International Municipal Signal Association,
Specification No. 20-2, Polyethylene-Insulated, Polyethylene Jacketed Communication Cable",
except that the signal interconnect cable shall be supplied without electrical shielding. The
cable shall consist of twenty (20) twisted pairs of No. 20 AWG solid copper conductors.
Prior to delivery of the cable, the Contractor shall furnish the Agency with a certified report,
in an Agency-approved form, of the tests made on the cable to show compliance with the



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