Wisconsin WisDOT Standard Specifications (within FDM) — Section 673

Effective with the December 2018 Letting 508 2019 Standard Spec ifications Section 673 Communication Vaults

673.1Description

(1)This section describes providi ng communication vaults and asso ciated tracer wire marker posts.

673.2Materials

673.2.1 General

(1)Furnish fiber optic cable suppor t assemblies consisting of the brackets, racks, and rails required to

suspend surplus cabling and splice enclosures for a communicati on vault. Ensure that support assemblies are made from or coated with a corrosion resistant m aterial.

(2)Furnish self-curing, permanent bonding, flexible gray rubber c aulk. Ensure that the caulk is mildew-

resistant, non-flammable, and is unaffected by sunlight, water, oils, mild acids, or alkali.

(3)Furnish fade resistant, ultraviol et stable, high-impact polycarbonate tracer wire marker posts a

minimum of 62 inches long with an outside diameter of 3.5 inches with "WARNING FIBER OPTIC CABLE BELOW" molded into the marker. Ensure that posts have sta inless steel hardware, five standard terminals, a terminal enclosure for cathodic protection, and an anchor bar. 673.2.2 Rectangular Vaults

(1)Furnish one-piece gray, polymer concrete rectangular communication vaults measuring 30 inches by

48 inches and at least 48 inches high. Stackable vaults are not allowed.

(2)Furnish a two-piece lid with a 15,000 pound minimum design loa d stamped permanently with

"WISDOT ITS" or as the plans sho w. Ensure that vault lids have water resistant gaskets, 2 slots measuring 1/2 inch by 4 inches for a pull out, and enough metal to detect with a metal detector. 673.2.3 Round Vaults

(1)Furnish round communications vaults from the department's QPL.

673.3Construction

(1)Provide additional conduit openings in vaults using a manufact urer-approved knockout punch driver.

Ensure that gaps between the conduit and vault are not greater than 1/2 inch. Caulk gaps both on the inside and the outside of the vaul t. Cure caulk according to ma nufacturer's specifications before backfilling.

(2)Lock vault lids with two 3/8-in ch 16 UNC stainless steel penta head bolts with washers. Anchor support

assemblies to vaults usings tainless steel hardware.

(3)Install tracer wire marker pos ts so that they cannot be pulled out or removed manually. Install conduit

into the access point and connec t the tracer wir e to the tracer wire marker post terminals.

673.4Measurement

(1)The department will measure the EACH bid items under this section as each individual unit acceptably

completed.

673.5Payment

(1)The department will pay for measured quantities at the contrac t unit price under the following bid

items: ITEM NUMBER DESCRIPTION UNIT

673.0100 - 0199 Communication Vault (type) EACH

673.0200 Tracer Wire Marker Posts EACH

(2)Payment for the Communication V ault bid items is full compensation for providing vaults; and for

excavating, backfilling, and restoring the grade.

(3)Payment for Tracer Wire Marker Posts is full compensation for providing markers; and for excavating,

backfilling, and restoring the grade.

Effective with the December 2018 Letting 509 2019 Standard Spec ifications Section 674 Intelligent Transportation Systems - Cable

674.1Description

(1)This section describes providi ng, removing, and reinstalling ITS electrical wire and communications

cable.

674.2Materials

674.2.1 ITS Communication Cable

(1)Furnish communication cable conforming to IMSA 20-6. Use 6 pai rs of 18 AWG in each cable. Turn

individual pairs 12 turns pe r foot within the cable.

(2)Furnish ITS communication cable and terminations conforming to Rural Electrification Administration

(REA)specification PE-22. Use 6- pair, 12-pair, or 25-pair comm unications cable 19 AWG solid copper

with color-coded polyethylene insulation, black polyethylene ou ter jacket, and aluminum tape shield between jackets required to conne ct ramp meter and detector pro cessor assemblies. 674.2.2 Microwave Detector Cable

(1)Furnish 12 twisted pairs, 19 AW G, solid copper or color-coded polyethylene insulation, black

polyethylene outer jacket, aluminu m tape shield between jackets , and gel filled. The pair-utilization shall be as follows: Pair 1: power. Pair 7: detection zone contact closure. Pairs 2 and 3: RS-232 bus for l aptop computer. Pair 8: detection zone contact closure. Pair 4: detection zone contact closure. Pair 9: detection zone contact closure. Pair 5: detection zone contact closure. Pairs 10 through 12: sp are. Pair 6: detection zone contact closure.

674.3Construction

674.3.1 ITS Communication Cable

(1)Under the Cable ITS Communication bid items, install 6 pair, 1 2 pair, and 25 pair copper

communication cable as the plans show.

(2)Install, terminate, and test tw isted pair copper communications cable in the processo r cabinets in order

to transmit and share data communications between cabinets.

(3)Prevent copper communication ca ble from damage during installation and storage. Do not step on or

run over by any vehicle or equipm ent. Do not pull along the gro und, or over or around obstructions.

(4)Seal copper communication cable ends during installation using a heat shrinkable end cap. Do not use

tape. Keep sealed until termination. For cable not immediately terminated, provide a 4-foot length of cable extending out of t he cabinet opening.

(5)Use cable grip to pull cable th rough conduit designed to provi de a firm hold on exterior covering of

cable.

(6)Do not pull copper communication cable through any intermediat e junction box, pull box, or any other

opening in conduit or du ct, unless the engi neer approves. Pull the necessary length to be installed from the pull box or cabinet to the immediate next downstream p ull box or cabinet. C arefully store remaining length of copper communication cable to prevent damag e and in a manner not hazardous to pedestrian or vehicular traffic. Cable shall enter a pull box or cabinet directly from the cable reel or storage directly out of the immediate downstream pull box or ca binet.

(7)Install copper communication cable without splices between hub or processor assembly cabinets.

(8)Do not exceed the minimum bending radius at anytime during ins tallation. Do not pull over edges or

corners, over or around obstructions, or through unnecessary cu rves or bends. Copper communication cable shall be looped in and out of cabinets and pull boxes to provide adequate slack and minimize stress on conductors.

(9)Use manufacturer’s recommended pulling tension for pulling copper communication cable by the outer

jacket or 80 percent of the manufacturer's maximum pulling tension whichever is smaller.

(10)Use engineer-approved lubricant at manufacturer's recommended quantity to facilitate pulling cable.

Lubricate as it is fed off of the ca ble reel or st orage stack i nto the cable feeder. Place lubricator funnel around the cable just ahead of the feeder. After installation, clean the copper communication cable with a cloth at a pull box o r cabinet before leaving.

(11)Unless the plans show otherwis e, provide slack in the cable of one full turn in box for pull boxes and a

minimum of 6 feet for cabinets.

Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 517–517 of 601.

← Previous

671 Intelligent Transportation Systems - Conduit

674 Intelligent Transportation Systems - Cable