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  1. UIC OUTSIDE PLANT DISTRIBUTION SYSTEM

    1. The University has steam and pedestrian tunnels and an existing underground duct system that shall be utilized wherever possible for campus distribution of underground cables to their respective buildings.


    2. New underground conduit must be installed, as part of any project, to those buildings not directly served by the existing tunnel or duct system. The location of the new structure will determine which one of the nodes will be used to serve the building. The routing of the fiber optic cables will be determined by UIC Telecommunications Engineering & Design.


    3. For all newly proposed conduit runs, please specify the following:


      1. Duct size, material, number, formation, and locations.


      2. Depth of placement.


      3. Selected backfill, cover, and locating marker tape.


      4. Allowable number of turns and bends.


      5. Radius factor of turns and bends.


      6. Chair placement detail including rebar.


      7. Concrete specifications.

    4. An industry-standard of 4" PVC of at least schedule 40 or equivalent must be used for underground conduit structures. These structures must be encased in concrete with a minimum of 2 inches between conduits and a minimum of 3 inches of perimeter concrete (See diagram 6a below).
      Click for Diagram 6a


    5. All underground conduit structures shall utilize an industry standard, preformed spacers placed at or near joints no more than 5 feet apart to keep ducts uniformly separated. Ducts need to be staked down before pouring. All work performed in manholes shall be performed by two or more workers, with one remaining above ground. Safety regulations shall be strictly adhered to. When the underground ducts are placed in the trench, UIC Telecommunication Engineering & Design shall inspect the installation before the pouring of any concrete, and inspect again before any backfilling is started.


    6. Provide a pre-lubricated conduit measuring tape in at least one conduit in any given duct run and provide a polypropylene twisted yellow rot and mildew resistant pull rope in all conduits. Minimum size is 3/8" outside diameter with 2400 pounds tensile strength.


    7. All underground duct systems shall remain a minimum of 24-inch ground cover throughout the run. To prevent accidental digging up of the duct bank, detectible warning tape shall be placed above the duct bank approximately 12 inches below grade.


    8. Provide 4 inch screw type adjustable plugs in vacant ducts at both manhole and building entrances that open into the main building telephone room (IDF). Seal all cable conduits with an approved sealant installed in accordance with the manufacturer's tested methods.


    9. The University standard requires that a minimum of four four inch conduits enter major buildings to serve the various media used on campus. Of these four one must be constructed with three one and one half inch ducts contained within it. The design must assure at least one empty four inch duct as a spare after all media has been installed. During the design and review process the telecommunications consultant and the UIC Telecommunications Engineer will specify the exact number if the standard four conduits are not enough for particular applications.


    10. Elements of the service entrance facilities design shall include the following:

      1. Type, size, gauge, and sheath type of the distribution cables from the Node to the new/existing building IDF.


      2. Type and quantity of the hardware/material required by UIC Telecommunications Engineering & Design at both the Node and the building IDF.


      3. Location of cables and hardware/material.


      4. Size, type, and quantity of associated structures to support or house the cables and terminal hardware such as:


        1. Building entry conduit.


        2. Underground conduit system.


        3. Manholes.


        4. Cable trays.


        5. Strand.


        6. Pull and splice boxes.


        7. Frames.


        8. Racking.


        9. Cabinets.


        10. Communications circuit protectors.

    11. All new service entrance conduits shall be at least four inch trade size and will terminate in the building main distribution room (IDF).


    12. Conduits entering the IDF through the wall shall be reamed, bell fittings will be placed at the ends, and terminated not more than four inches from the entrance wall.


    13. Conduits entering the IDF from below shall be terminated four inches above the finished floor.


    14. All cable tray must be approved by UIC Telecommunications Engineering & Design prior to their inclusion in drawings and specifications and must be made with solid bottom and sides.


    15. Cable tray shall be sized for a minimum growth of fifty percent.


    16. Pulling of the underground cable shall follow the following requirements:


      1. All necessary cable data, including maximum pulling tensions and minimum bending radii, shall be obtained by the Contractor from the manufacturer before any cable is pulled.


      2. The equipment used to pull cable shall have adequate capacity to ensure a steady continuous pull.


      3. A suitable flexible feeder tube, guide protectors or sleeves shall be used to protect and guide cable from the cable reel through manholes and into conduit or duct. The radius of the feeder tube shall be as large as possible.


      4. Pulling rope used may be either nylon, polypropylene or manila rope.


      5. Basket weave type grips, wedge type pullers, and swivel harnesses may be used for pulling cables within manufacturer's recommended safe working loads.


      6. Only cable pulling lubricants compatible with the cable jacket shall be used when pulling cable through conduits.


      7. Before pulling cable through conduit and duct runs, a mandrel or plug having a diameter close to the diameter of the conduit shall be pulled through to check for obstructions. If an obstruction is encountered, a mandrel followed by a swab shall be used to clean out any lint or foreign matter.


      8. When pulling cables through conduits, cable tray, and ducts that are supported by rod angle hangers, they shall be braced to withstand the tensions used for pulling cable.


      9. When cables are installed in their permanent locations, they shall not be bent beyond the radial limitations recommended by the cable manufacturer.


      10. Fiber optic cables pulled through inner duct shall not be twisted or flexed during installation. Manufacturer's minimum bend radius must be observed for all pulls.

    17. Splicing of underground cable (Specific brands and part numbers are given, however, a UIC Telecommunications Engineering & Design approved equivalent may be used).

      1. All cables splices shall be supported by a minimum of two cable hooks. Horizontal racking for support may utilize 3M brand RC-100 rack adapters, manhole racks, or UIC Telecommunications approved equivalent..


      2. AT&T 2200 and 2000 series splice cases or a UIC Telecommunications Engineering & Design approved equivalent, shall be used for splicing throughout the underground system. The 2000 series case will be used at building entrance splices at NODE and IDF locations requiring a closure of five inches in diameter or more.


      3. All closures and end-caps must be flame retardant and no splice cases will be permitted in cable trays.


      4. All splicing will be performed according to industry standard practices.


      5. Rigid bonding and strain relief bars must be a integral part of the finished closure.


      6. All splices in manholes are to be encapsulated. Re-enter able polyurethane compound, AT&T-1000 shall be used in accordance to manufacturers specifications in applying 12 pounds of pressure to activate visual fill gauge.


      7. Splicing of cross-connect terminals, and secondary cable access stubs, shall utilize Scotchlok-ULG splicing connectors or equivalent. 3M brand MS2 modular connectors shall be used with the cable on the outside plant side of the NODE. The distribution side shall be terminated on the distribution frame.


      8. Underground cable splicing shall utilize 3M MS2-4000 series super-mini modular connectors. Mark each splice with the cable identification number and the pair counts.


      9. All cables MUST be tagged or marked showing the cable number and pair count. Markings may be placed on UIC Telecommunications Engineering & Design acceptable plastic ty-wrap tags.


      10. All fiber optic splicing in manholes shall be done with fusion splices.


      11. AT&T's Universal Fiberoptic Closure (UCB1 Light guide Closure) Series splice case, or UIC Telecommunications Engineering & Design approved equivalent, will be used for splicing and encapsulation in manholes throughout the campus system.


      12. All fusion splices shall test at .30 dB of loss at 1300 nanometers or less to be accepted.

    18. EXCAVATION

      1. The contractor shall be required to do all the excavation for the installation of underground mechanical piping and performance of all auxiliary work that may be required. Before work begins, the contractor shall:

        1. Receive approval for trenching from the UIC Facilities Management Department.


        2. Erect temporary barriers whenever necessary to assure the safety of University personnel, students and visitors, and wherever deemed necessary for securing materials.

      2. UIC Telecommunications Engineering & Design has drawings of existing conduit runs and has access to Facilities Management drawings of other existing facilities. UIC Telecommunications Engineering & Design can locate the underground facilities within campus boundaries. Other public utilities can be located by calling "DIGGER" 312-744-7000 or by calling the utility direct. The contractor shall be responsible for locating and protecting all utilities.


      3. All trenching with public right-of-way owned by, or under the jurisdiction of, the City of Chicago, must conform to appropriate city standards. The contractor is responsible for obtaining cut and trench permits, from the City of Chicago. The contractor has the responsibility to insure that the work complies with the most current standards and codes.


      4. Pavement shall be saw cut at a full depth, in a straight line.


      5. Walks and drives are to be saw cut at existing joints. For replacement road patches, which are near existing joints, the saw cut will be extended to existing joints. New concrete will be saw cut 1/3rd of the total thickness for joints at intervals not to exceed 15 feet. These saw cuts shall be sealed with rubberized asphalt after cleaning.


      6. All underground construction work, during progress and after completion, shall conform truly to lines and grades.


      7. The width of the trench shall be per the construction drawings. Where sheeting is required, this width shall be increased by the thickness of the sheeting.


      8. Should the trenching be excavated to a greater depth than that given, the contractor shall, at his own expense, purchase suitable material as directed to bring such excavation to required grade.


      9. The excavated material shall be deposited along, and at least two feet from, the side of the trench, in such a manner as to create the least possible inconvenience.


      10. Special care shall be taken to keep all fire hydrants and gate valves on water mains accessible at all times.


      11. The contractor shall not obstruct the gutter of any street or driveway, but shall use all proper means to provide for a free passage of surface water along the gutter into storm water inlets. The contractor shall provide channels were necessary.


      12. Wherever necessary, the sides of a trench shall be shored and braced in strict accordance to the rules, orders, and regulations of the City of Chicago, the State of Illinois, and OSHA.


      13. The contractor shall maintain access to all areas required by UIC. The contractor is liable for all damage suffered by the University, resulting from the contractors negligence or lack of cooperation.


      14. Where groundwater or soft, yielding, or otherwise unsuitable material is encountered in the bottom of the trench, such material shall be excavated from the full width of the trench to a satisfactory depth. Said depth shall be a minimum of six inches. The resulting space shall be back filled with suitable imported materials, properly compacted.


      15. Industry standard 4" PVC schedule 40, or greater, conduit must be used for underground infrastructure conduit systems. Subsidiary conduit may be of different sizes and types as appropriate for the particular application, but shall be limited to a two inch minimum size.


      16. Underground conduit structures must be encased in minimum 2500 PSI concrete with #4 rebar run parallel with the conduit on all four corners. UIC Telecommunications Engineering & Design approved chair supports shall be interlocked and placed a minimum of every five feet along the entire length of the run. The ducts shall be staked down at each set of chairs and #3 cross-ties installed.


      17. The remainder of the trench shall be back filled with native soil in lifts no greater than twelve inches and shall be mechanically compacted by tamping so as to maintain a minimum relative density of ninety percent.


      18. Surplus earth from the trenches, after tamping, shall be removed and disposed of by the contractor in a proper manner.


      19. Any asphalt pavement cut shall be replaced and shall conform in kind and quality to the type of pavement removed, but in no case less than twelve inches of base rock shall be placed beneath the pavement. Where asphalt concrete surfacing exists, pavement shall be no less than three inches thick.


      20. All concrete roads will have expansion joints at intervals not to exceed forty five feet with 2 inch wide preformed joint material at least six inches deep. Expansion joints shall be placed between all new and existing concrete.


      21. All new concrete pavement shall be a minimum of six bag mix with a minimum of six percent and a maximum of eight percent air entainment and two inch slump. New concrete is to match existing surface or is to be broom finished, as desired by the University. Concrete is to be sloped for proper drainage. Concrete pavement shall conform to the requirements of the City of Chicago.


      22. All patches in roads and curbs are to be doweled with 2 inch by 18 inch smooth rebar spaced at not less than 18 inch intervals, placed nine inches into existing concrete. Bar in new concrete is to be greased and wrapped.


      23. Curing time for concrete with accelerator is to be three days with and seven days without accelerator. Traffic load may be delayed up to fourteen days beyond cure period.


      24. Concrete sidewalks are to be scored every five feet, at a one half inch minimum depth, and expansion joints placed every twenty four feet or change in direction. If a different pattern exists in the area involved, the existing pattern is to be matched.


      25. Field tests will be conducted and paid for by the University to determine compliance of compaction methods with specified density in accordance with:


        1. ASTM D 2922 Tests for density of soil and soil aggregate in place by nuclear methods.


        2. ASTM D 1556 Tests for density of soil in place by the sand code method.


        3. ASTM D 2167 Tests for density of soil in place by rubber-balloon method.

      26. Compaction shall be to the following densities (reference ASTM D 698 or AASHTO T 99 unless otherwise indicated):


        1. Subgrade: under footings or foundation
        		 100%
        1. All other locations
        		 95%
        1. Barrier material
        		 95%


      27. Pipe Bending


        1. Lightly compacted select soil
        		 80%
        1. Carefully compacted select soil
        		90%
        1. Compacted granular material
        		80%(ASTM D 249)
        1. Barrier material
        		95%


      28. Trench back fill:


        1. State highways:

          1. For paved areas and shoulder slope
          		100%
          1. For all other areas
          		95%
        1. Paved roadways, sidewalks and others areas to receive pavement:

          1. Top four feet
          		95%
          1. Remainder of trench
          		90%


        1. Gravel roadways
        		90%
        1. Under-footings, foundations or structures
        		100%
        1. All other locations
        		95%


      29. Bricks, block, and other debris removed from trenches will not be used as fill for the trenches.


      30. Where granular material is used in lieu of cohesive soils, reduce the above percentages by 15% to arrive at the relative density and ASTM D 2049 shall apply.


      31. Grass will be replaced by a method approved by UIC Facilities Management.


      32. Moisture Content:

        1. Compact soils within plus or minus 2% of optimum moisture.


        2. Add water, harrow, disc, lade or otherwise work material as required to insure uniform moisture content specified.

    19. MANHOLES AND HANDHOLES

      1. Precast, equipped with terminators, necessary collars, pulling eyes, frames and complete hardware package, including ladders in manholes, must conform to specifications of concrete products manufactured by Utility Concrete Products, Inc., Plainfield, Illinois or Chicago Precast Products Company, P.O. Box 69, Naperville, Illinois.


      2. The standard size for manholes used with major underground conduit structures of four ducts or more will be six feet wide, twelve feet deep, and seven feet high. Alternate sizing will be permitted only with the permission of the UIC Telecommunication Engineering & Design.


      3. Hand holes with minimum dimensions of four feet wide, five feet long, and four feet high may be used instead of manholes for major conduit structures of two ducts or more.

    20. MATERIAL/EQUIPMENT LISTS

      1. PVC telephone duct shall be a minimum of Schedule 40, Class C Commercial Telephone Duct, 20 feet length, belled on one end, with high tensile strength and good impact qualities. Must conform to requirements for AT&T-8546 and GTE-8343 specifications.

        1. Outside diameter 4.350"


        2. Inside diameter 4.000"

      2. Polypropylene rope to be twisted yellow, rot and mildew resistant, minimum 3/8 inches in diameter with 2400 strength pounds.


      3. Conduit measuring tape must be water proof tape with permanent printed footage. Must be able to be pulled in or back easily with standard rodding retrieval systems.


      4. Adjustable duct plug with metal base, screw type with expandable rubber outer surface.


      5. Building penetration sealant shall be a City of Chicago and UIC Telecommunications Engineering & Design approved fire protection sealant, installed in the manufactures approved manner.

    21. OUTSIDE PLANT SAFETY REQUIREMENTS


      1. All encroachments in city highway rights-of-way shall be designed, made and maintained in accordance with the follow rules:


        1. Conformance-- Manual on Uniform Traffic Control Devices, U.S. Department of Transportation, or applicable statutory requirements of authority having jurisdiction.


        2. Operations on or about traffic areas and provisions for regulating traffic will be subject to the regulations of governmental agencies having jurisdiction over the affected areas.


        3. Keep traffic areas free of excavated material, installation equipment, pipe, and other materials and equipment.


        4. Flagmen are required to provide for public safety and the regulation of traffic.


        5. Warning signs, lights, and audible signal are required.


        6. Protect all roadways by effective barricades which have warning signs.


        7. Provide barricades and warning signs for open trenches, other excavations and obstructions.


        8. Illuminate by means of warning lights all barricades and obstructions from sunset to sunrise.


        9. Provide an audible warning for all barricades and obstructions at all times for the visually impaired.

    22. The cable plant distribution system shall be complete in every respect, constructed in accordance with generally accepted, current standard practices of the telephone industry and the detailed requirements of this standard. It shall be ready to operate in the manner expressed or implied herein, regardless of whether or not full details of such completeness or practices are contained herein.
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2002-9-11  ACCC Webstaff
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