Article 1 — Description
1.1 Installation . Fabricate, furnish, and install traffic signal cables.
1.2 Removal . Remove existing traffic signal cables.
Article 2 — Materials
Provide polyethylene- jacketed multi -conductor cables as shown on the plans. Individual conductors must be copper with polyethylene insulation rated for 600V . Furnish new materials. Provide traffic signal cables in accordance with DMS -11110 , “Traffic Signal Cable.”
2.1 Type A Cables . Use Type A cables in accordance with IMSA 20-1 for underground conduit installation or
aerial cable supported by a messenger wire. Messenger wire is defined under Item 625, “ Zinc- Coated Steel Wire Strand.”
2.2 Type B Cables . Use Type B cables in accordance with IMSA 20-3 as the integral messenger wire for aerial
installations.
2.3 Type C Cables . Use Type C cables in accordance with IMSA 50-2 for loop detector lead- in installations
consisting of two conductor shielded cables.
2.4 Sampling . The Engineer may take samples from each roll of each size of cable for establishing conformity to
IMSA. The samples will be at least 3 ft. long. Replace any cable failing to meet IMSA requirements.
Article 3 — Construction
3.1 Installation . For each cable run in underground conduit, coil an extra 5 ft. of cable in each ground box. For
aerial installations over span wire, coil 5 ft. of cable neatly at the top of the nearest span wire pole for pole- mounted cabinets. Coil an extra 5 ft. of cable for each vehicle signal head assembly as shown on the plans or as directed. Splices are not permitted in Type A and Type B cables unless shown on the plans or approved in writing. Ensure splices are watertight. Make splices between Type C cable and loop detector wires only in the ground box near the loop the cable is servicing. Use non- corrosive sold er for splices. Ground the drain wire of Type C cable to earth only at the controller or detector cabinet. Ensure the resistance from the drain wire to the ground rod is less than 1 ohm. Test the cables after installation and before any connection to the cables. Cables testing less than 50-megohm insulation resistance at 500V will be rejected.
3.2 Removal . Remove the existing cable as shown on the plans or as directed. When the removed item leaves
an opening, cover the opening with similar material to an equivalent condition.
Article 4 — Measurement
This Item will be measured by the foot of traffic signal cables installed or removed. 934 This is a plans quantity measurement Item. The quantity to be paid is the quantity shown in the proposal, unless modified by Article 9.2., “Pl ans Quantity Measurement.” Additional measurements or calculations will be made if adjustments of quantities are required.
Article 5 — Payment
The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for installation or removal of the “Traffic Signal Cables” of the types and sizes specified.
5.1 Installation . This price is full compensation for furnishing and installing materials, and for equipment, labor,
tools, and incidentals, except as shown below. Cables inside traffic signal pole and pedestal pole assemblies will be paid for under this Item. Cables used for inside signal heads and controllers or coils in ground boxes, on pole bases, and on span wires will not be paid for directly, but will be subsidiary to pertinent Items. The wire lashing or cable tie used to secure aerial cables to messenger wires will be subsidiary to Item 680, “Highway Traffic Signals,” or Item 690, “Maintenance of Traffic Signals and Illumination.”
5.2 Removal . This price is full compensation for removing traffic signal cables as shown on the plans or as
directed.