SECTION EXTERIOR COMMUNICATIONS PATHWAYS SPECIAL NOTE: (REMOVE FROM FINAL DOCUMENTATION)

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1 SECTION EXTERIOR COMMUNICATIONS PATHWAYS SPECIAL NOTE: (REMOVE FROM FINAL DOCUMENTATION) These specifications guidelines detail the intents of KCTCS for Telecommunications Infrastructure Design and Installation. Every effort has been made to follow all required codes, standards, regulations, and specifications in formulating this documentation. However this document is for guidance purposes only. In all cases it will be the responsibility of the submitting authority involved in the design, installation, specifications and details of a KCTCS Capital Construction Project to be sure that the latest codes, standards, regulations, and specifications are referenced regardless of codes, standards, regulations, and specifications stated in this document. All documentation must be checked, and verified with approved changes by KCTCS Technology Solutions and KCTCS Facilities Management prior to Phase C and again prior to final construction bid documentation. Questions, problems or comments concerning this document or the referenced codes, standards, regulations, and specifications should be directed to KCTCS Technology Solutions or KCTCS Facilities Management. PART 1 - GENERAL 1.1 SUMMARY A. SCOPE 1. Minimum composition requirements and/or installation methods for the following materials and work are included in this section: a) Trenching and Excavation b) Underground Duct c) Innerduct d) Aerial Installations e) Maintenance Holes, Vaults and Handholes B. SUBMITTALS 1. Product data for: a) Precast Maintenance Holes b) Handholes c) Ductbank materials d) Aerial hardware 1.2 QUALITY ASSURANCE A. The contractor shall engage the services of a qualified installer for all excavation and concrete work. B. All work shall be done in a neat and workmanlike manner. C. All methods of construction and installation shall follow all applicable national, state, and local codes, standards, regulations and KCTCS specifications. D. Equipment and materials shall be of the quality and manufacture indicated. The equipment specified is based on the acceptable manufacturers listed. Where "accepted equal is stated, equipment shall be equivalent in every way to that of the equipment specified. E. Materials and work specified herein shall comply with all applicable requirements of the latest versions of: 1. National Electric Code (NFPA 70) 2. National Electrical Manufacturers Association (NEMA) Standards EXTERIOR COMMUNICATIONS PATHWAYS SECTION PAGE 1

2 3. American National Standards Institute (ANSI) standards: 4. Telecommunications Industry Association (TIA): a) ANSI/TIA/EIA 568-B Commercial Building Telecommunications Cabling Standard b) ANSI/TIA/EIA 569-A Commercial Building Standard for Telecommunications Pathway and Spaces c) EIA/TIA-606-A Administration Standard for the Telecommunications Infrastructure of Commercial Buildings d) EIA/TIA-607 Commercial Building Grounding and Bonding requirements for Telecommunications 5. BICSI guidelines a) BICSI Telecommunications Distribution Design Manual b) BICSI Customer Owned Outside Plant Design Manual c) BICSI Telecommunications Cabling Installation Manual 6. OSHA Guidelines 7. U.L. Standards: 8. KCTCS Guidelines and Specifications 1.3 PROJECT CONDITIONS A. The following conditions apply to excavation: 1. Identify maintain and protect existing building services which cross the excavation area. 2. Protect utilities, sidewalks, structures, pavements and other facilities from damage caused by settling, lateral movements, undermining, washouts and other hazards created by excavation work. 3. Locate and verify existing underground utilities in excavation areas. If utilities are indicated to remain, support and protect services during excavation operations. 4. Verify subsurface conditions prior to excavation work. PART 2 - PRODUCTS 2.1 TRENCHING AND EXCAVATION FILL A. Sand: Clean, coarse, and free of organic matter. B. Crushed Stone: Crushed stone or gravel, washed, graded, free of organic materials, 1 in. to No. 4 size. Graduation per ASTM C33, Table II, Size 57, as follows: Percent Passing Sieve No. Maximum Minimum 1-1/2 in in ½ in # #8 5 0 Percent Passing Sieve No. Maximum Minimum 4 in in # # # # C. Pea Gravel: Rounded stone, 3/4 in. maximum diameter, and 1/8 in. minimum diameter. Stone crushings of 1/8 in. to 1/2 in. meeting ASTM C33, Paragraph 9.1 may also be D. Ordinary Fill: Well-graded, natural inorganic soil, meeting the following requirements: EXTERIOR COMMUNICATIONS PATHWAYS SECTION PAGE 2

3 1. Free of organic and other compressible materials, debris and frozen materials, and of stones larger than 4 in. maximum dimension. 2. Be of such nature and character that it can be compacted to the specified densities. 3. Free of highly plastic clays, of materials subject to decay, decomposition, or dissolution, and of cinders, ash and other corrosive materials. 4. Maximum dry density of not less than 115 lbs. per cu. ft. 5. Material from excavation on the site may be used as ordinary fill if it meets the above requirements. 2.2 MAINTAINENCE HOLES A. Provide pre-cast reinforced concrete Maintenance Hole designed for: 1. H-20 loading as indicated by AASHTO. 2. Pre-cast concrete: 28 day compressive strength f c= 4,500 psi 3. Reinforcing: ASTM A-615, Grade Joint sealant: Butyl Rubber SS-S Designed for maximum soil cover of not less than 5 feet or as determined by project requirements. 6. Shall have angled corners, cut on 45 degrees for optimum cable racking or shall provide cable rack supports in 4 corners for cable support if walls are at 90 degrees. B. Covers and frames shall be cast iron, with a minimum opening of 27" suitable for H-20 loading. Covers shall have open pick holes and have Communications, cast in 2 high lettering on the cover, per Owner's directive. C. Adjust frame to grade by providing grade rings. D. Provide cable racks with T slots for attaching support hooks. Provide two per wall. E. Provide pulling irons on each wall 12 below duct. F. Provide 14 Sump Pan with Lid. G. Provide Maintenance Hole step and hook style ladder. H. Design Make: 1. Oldcastle Precast-Cloud Concrete Products a) 4 x8 x6 I.D. Utility Vault # UTT486TYPA b) Grade Rings 6 or 12 c) Cast Iron Rings and Covers # SB30 d) Cable Racking e) Standard Flat Hook # 10A37 f) Pulling eye / pull iron g) Sump Pan # UAASUMP I. Acceptable Manufacturers: 1. Submit 2.3 HANDHOLES A. Handhole (HH) box cover to be marked telecommunications. B. HH is not be used as a substitute for maintenance hole (MH) without approval. C. MH must be used for first pullpoint outside building. D. HH to be no more tha 500 feet apart from other HH or MH. E. HH enclosures, boxes and covers are required to conform to all provisions of NEC and ANSI/SCTE 77 Specification for Underground Enclosure Integrity for tier 15 applications. F. Independent third party verification or test reports stamped by a registered professional engineer certifying that all test provisions of this specification have been met are required with each submittal. G. HH must be excavated to be at least 6 8 deeper than the depth of the grade level of the enclosure to allow for the placement of a minimum 6 of gravel in the bottom of the hole. H. The gravel base should always extend no less than 3 inches past the sidewalls of the enclosure, the gravel acts as a french drain and also provides a support base to help prevent the enclosure from sinking. EXTERIOR COMMUNICATIONS PATHWAYS SECTION PAGE 3

4 I. Once the enclosure is positioned on top of the gravel and the elevation is checked, the enclosure is ready for back-filling. 2.4 DUCTBANKS A. OPTION ONE: 1. Install four (4) 4 diameter type 40 PVC conduits (or equal) encased in a concrete ductbank. PVC conduit is not to be direct buried (see option two) 2. One 4 conduit is to be innerducted with Maxcell 3 3 cell product (or equal). 3. Conduit structure to be encased by 3500 psi concrete with minimum depth of 3" on top and each side and 6" on bottom 4. Number 6 rebar must be connected to support structure and also run parallel to conduit to reinforce concrete ductbank. B. OPTION TWO: 1. Install four (4) Carlon Multi-Gard 4" type 40 PVC conduit with 3-way innerduct (or equal). 2. Can be used for direct bury or concrete encased applications. 3. Boreable Carlon Multi-Gard 4" type 40 PVC conduit with 3-way innerduct (or equal) can be used in a boreable application. 4. All multi-cell conduits must be compatible with other Multi-Gard type 40 PVC. C. Design Make: 1. See KCTCS Approved Materials List D. Acceptable Manufacturers: 1. Submit 2.5 INNERDUCT A. One 4 conduit shall 3 have 1" or 1 1/4" innerducts as called for on the drawings. 1. You may also use the Maxcell 3 3 Cell product as the inner duct material. A pull string will also be required. 2. Shall be orange in color. B. Design Make: 1. See KCTCS Approved Materials List C. Acceptable Manufacturers: 1. Submit 2.6 AERIAL INSTALLATIONS (NOT TO BE USED UNLESS ACCEPTED BY KCTCS TECHNOLOGY SOLUTIONS AND KCTCS FACILITY MANAGEMENT) A. Messenger Strand System 1. Provide 3/16 diameter 7-wire galvanized 6M steel messenger strand as noted on the drawings. a) Messenger strand to be manufactured to ASTM A475 specifications and be accepted by both REA and Bell Telephone standards. b) Strand to be at least a utilities grade, have a minimum breaking strength of 5,500 pounds, have a left lay and have at least an A rated galvanized coating weight. 2. Strand Attachments: a) Provide and install the appropriate S guy bolts, B beam clamps, wall straps, brackets, etc., as necessary to adequately support the strand as typically indicated. b) S guy bolts (or commonly called anchor rods or thimbleye bolts) shall be a minimum 5/8 diameter with a straight shank and be designed for attaching messenger strand deadends. The bolt length shall be at least 4 longer than the width of the structural steel flange it will be attached to. c) B beam clamps, or approved equivalent, shall be designed to be used for deadending strand on the flange of structural steel members (columns and beams). B beam clamp shall be designed to be used with a 5/8 S guy bolt. EXTERIOR COMMUNICATIONS PATHWAYS SECTION PAGE 4

5 3. Strand Connectors: a) Provide and install all B strand connectors, suspension/cable clamps, grounding tap clamps, hangers, 1-bolt and 3-bolt clamps to adequately support the strand as typically indicated b) For strand runs in excess of 15 between structural columns, additional ½ rod supports and appropriate strand clamps (either 3-hole clamps or Kindorf C-708 supports) shall be provided and installed on minimum 25 centers, per the project manager s direction. 4. Strand Cable Rings: a) Provide and install cable rings, or equivalent, to all strand runs after strand is installed. Rings shall be spaced on maximum 16 centers with the latching ring oriented in the same direction. Ring size required for each strand run shall be identified on the drawings. B. Design Make: 1. (Not to be used unless accepted by KCTCS Technology Solutions and KCTCS Facility Management) C. Acceptable Manufacturers: 1. Submit PART 3 - EXECUTION 3.1 EXCAVATION AND TRENCHING A. Preparatory Work 1. Build lines to grade and elevations shown. Provide stakes, grade boards, cleats, nails, instruments. Locate and stake each new run for its entire length. Verify elevations given. Start excavation at low point. Notify Engineer of elevation discrepancies. Protect marks and stations. 2. Before excavating work, coordinate with Owner's Site Representative and other trades. Furnish schedule of operations to Owner and each trade. Provide and maintain temporary bridges, walks and bridges over excavations where underground utility lines, sewers, water lines, etc., cross access roads, walks, and streets. 3. Make necessary arrangement with authorities having jurisdiction. Provide the services of a Licensed Surveyor for site layout. 4. Examine substrates, areas and conditions, with the installer present, for compliance with requirements for installation tolerances and other conditions affecting installation. Do not proceed with installation until unsatisfactory conditions have been corrected. B. Protection 1. Provide bracing, shoring, sheathing and other work for: protection of personnel, the contract work, excavations, trees, shrubs, existing structures, and surrounding properties. Slope sides of excavations to comply with local codes and ordinances. Provide, erect, and maintain barricades, warning signs, flags, and lights to provide protection for work, workmen, public, and property. Plank walks, pavements, and curbs to be crossed by equipment. Protect adjacent property, existing fences, trees, shrubs, roads, curbs, sidewalks, Maintenance Holes, hydrants, and other items: 2. Restore, repair, rebuild or replace any such items damaged or destroyed to condition equal to that existing before such damage occurred. 3. Establish conditions, before starting work, by taking photographs to determine state to which existing conditions must be restored. Submit such photographs notarized, identified and dated for record. C. Existing Utilities EXTERIOR COMMUNICATIONS PATHWAYS SECTION PAGE 5

6 1. Every attempt has been made to indicate existing utilities as accurately as possible from existing drawings, surveys, and data. Report immediately other utility lines encountered, but not shown on the drawings. 2. Notify Kentucky Underground Facilities Protection Organization (UFPO), where same exists, before starting work. Verify exact location of existing utility lines where work crosses existing utilities and where connections are to be made by test hole before starting work. 3. Notify utility companies, municipalities, owner organizations, and other involved jurisdictions when excavation occurs within vicinity of existing underground service such as sewers, water, electric, gas, telephone, including such services owned by Owner. If existing service lines, utilities and utility structures which are to remain in service are uncovered or encountered during this excavation, they shall be protected from damage, and securely supported as directed and approved by the involved jurisdiction. 4. Comply with Penal Law of Kentucky with regard to work in vicinity of combustible gas piping. Immediately report damage or injury to utility lines to Owner's Representative and involved jurisdiction. 5. Repair or replace utility lines damaged or injured as directed and approved by the involved jurisdiction. Excavate by hand in proximity to existing underground utility lines; take extreme care when excavating around ductbanks carrying energized cable. 6. Remove plug or cap inactive or abandoned utilities encountered during construction operations. The location of such utilities shall be noted on the record drawings. Verify "inactivity" of services with involved jurisdiction before start of work. D. Cutting and Patching 1. Before starting work, obtain necessary permits and pay fees and charges for same. Cut paved areas as called for, perpendicular to surface and in straight saw-cut lines. Replace pavements, roadways, streets, blacktop areas, walks, disturbed by excavating operations with materials equal to adjacent pavements. E. Methods 1. Provide for buried work in contract both inside and outside of building. Excavate to proper depth and width for installation work as called for and comply with rules set forth by Kentucky Department of Labor. 2. Remove materials including masonry work, rubble, earth, brickwork, concrete, sand, debris, abandoned pipe lines, drains and sewers, rocks, boulders, and concrete, all of which is considered "earth excavation." Provide for legal disposition of excess excavated materials. Make allowance for gravel fill, sand bases, form work, floor slabs, Maintenance Holes, anchor and thrust blocks, sheet piping, drainage pumps, and work space. Start excavation at rough grade and provide form work and sheet piling where required. F. Trench width: 1. Should be no greater than is needed to provide adequate working space 2. When backfill is used the trench must be 5 inches wider than the width of the conduit structure. 3. When conduits are encased in concrete (3500 psi) the trench must be 3 inches wider than the width of the conduit structure. 4. The trench bed must be level and if necessary sand and/or other granular backfill is to be used as bedding material so the conduit will be evenly supported over the length of each section G. Trench excavation: 1. By open cut, to proper depth and grade no wider than required for placement of work and not more than 100 ft. in advance of utility being installed. 2. Should trench bottom be wet, unstable, and/or otherwise incapable of supporting the contract work, immediately report same to Owner' Representative. Should it be deemed unsuitable, excavate to depth as directed and back fill with gravel to trench depth, or provide concrete cradling. EXTERIOR COMMUNICATIONS PATHWAYS SECTION PAGE 6

7 3. Should rock be encountered, excavate 6 in. deeper and fill space between trench bottom and pipe with coarse sand, well tamped to form firm bed. H. Shoring, bracing, sheathing: 1. In addition to governing codes, protect sides of excavations with sheeting and bracing where necessary to prevent sliding or caving of banks and to protect adjacent structures. Remove as back fill is placed. 2. Provide at locations adjacent to existing Maintenance Holes, hydrants, and similar items. I. General excavation: 1. As required for all buried work. This shall include, but not be limited to, piping, tanks, ductbanks, conduits, footings, Maintenance Holes, anchors, concrete pads, thrust blocks, fixture bases, and other work in contract. J. Backfill 1. Provide bedding around piping with coarse sand from 6 in. below to 8 in. above. Apply by hand and compact under and at sides by mechanical means. 2. Piping, jackets and sand bed must be inspected and tested prior to backfill of any nature. Provide necessary anchors, thrust blocks, for testing. 3. Fill remainder of trench in 12 in. layers, use ordinary fill material, except as otherwise specified. Do not use frozen material. Remove boulders, stones, broken rock, wood, bricks, blocks, and debris from fill material before backfill operation. 4. Under roadways, Maintenance Holes, drives, parking areas, walks, slabs, on grade and at utility entrance to building provide backfill in 6 in. layers with gravel or crushed stone, free from organic or other unsuitable material, to grade. Thoroughly compact each layer. 5. Compaction to not less than 95% density compared to maximum laboratory tests by weight, per modified ASTM D T, latest editions, method "A" under slab on grade, roadways, drives, and other paved areas and 85% for general grading. Submit certified results of tests by an approved soil testing laboratory. K. Removal of water 1. Provide pumps, hoses, pipe, labor and fuel, necessary to keep excavations free of water accumulation. Maintain and operate equipment. Discharge water in manner not interfering with any trade's work and not to undermine or disturb existing or adjacent structures or land. Grade to prevent surface water from flowing into all excavations and trenches. Do not discharge dirt, backfill, debris, into sanitary or storm drainage systems. L. Job completion 1. On completion of the work, clean the entire site, remove surplus earth, large stones and debris, to off-site legal disposal. Remove tools and equipment and leave the entire area in a neat condition. 2. Rough grade to 6 in. below finished grade. Scarify subsoil to depth of 2 in. to achieve bond between topsoil and subsoil. 3. Repave, reseed and completely restore the area to the condition prior to the start of excavation and trenching work. M. Additional Customer specific restoration requirements 1. Seed mix, straw, run-off, catch-basin cleaning of run-off material, settling, periodic watering, racking of stone, top-soil mix, who performs first few cuttings, etc. to be determined by project. 3.2 MAINTENANCE HOLES A. Joint use maintenance holes (MH) are not permitted. B. All covers shall have telecommunications pre-marked on the cover for easy identification. Frames and covers used in roads or driveways shall be rated to withstand vehicular traffic. C. All hardware in MH must be galvanized. D. MH shall be equipped with the following: 1. Bonding inserts and struts for racking. 2. Pulling eyes at least 22 mm (7/ 8 in) in diameter. EXTERIOR COMMUNICATIONS PATHWAYS SECTION PAGE 7

8 3. A sump of at least 200 mm (8 in) in diameter. 4. An entry ladder (where feasible). E. All exterior surfaces of below grade portions of sides and tops of all MH shall be weatherproofed. F. Adhere to all manufacturers installation recommendations and seal all joints in vault per manufacturer s instructions. G. Provide minimum of 6-12 of cover or the depth as required by the project site grade over top of Maintenance Hole to grade, adjust frame to grade by providing grade rings. H. MH to be within 100 feet of building I. MH to be no more than feet apart. J. MH shall be connected to the other MH using the Inter-building Conduit and/or Ductbank system. K. Conduits entering the MH are to be placed at opposite ends L. MH and conduits must be sealed during construction and after construction to prevent debris from entering and must be cleaned prior to installation. M. Locate MH to avoid unnecessary hazards and cause minimum interference with normal traffic flow. Locate outside traveled parts of road wherever possible. N. MH shall be installed level on an adequately stable base. Contractor to be responsible for any issues that occur due to settling or shifting of Maintenance Hole. O. Handholes (HH) are not be used as first pull points outside a building but can be used in ductbank structure with acceptance from KCTCS Technology Solutions and KCTCS Facilities Management. 3.3 DUCTBANKS A. Conduits must either reside in a concrete encased ductbank as noted in Option One or use Carlon Multi-Gard (or equal) as noted in Option Two. B. Conduit encasement: 1. Surface must be cut, patched, and repaired to match existing surface. 2. Top of ductbank must be buried at least 30 inches below the ground surface " wide orange marking tape must be buried 18" below and/or concrete top dyed yellow. 4. Conduit supports (Carlon Snap-N-Stac or equal) must be used every 8-10 feet to provide adequate support and to maintain proper spacing. 5. Reinforcing bars shall be installed parallel to conduit in corners of concrete ductbank. 6. Rebar reinforcement to be used at support sections to tie conduits down to prevent floating. 7. Additional reinforcement is to be used when crossing roadways. C. Maintain separation from other utilities 1. Power up to 1kva: a) 12 inch of well- packed earth b) 4 inch of masonry c) 3 inch of concrete 2. Gas, oil, water, etc..: a) 12 inch when parallel b) 6 inch when crossing 3. Steam: a) 6 feet when parallel 4. All other Inter-building Conduit and/or Ductbank separations must comply with the NFPA 70 and ANSI/TIA/EIA 607. D. FOR ALL OPTIONS: 1. Conduit shall have no more than 180 degrees of cumulative bends between pull points or more than 90 degrees of bends at any one point. EXTERIOR COMMUNICATIONS PATHWAYS SECTION PAGE 8

9 2. Conduit runs shall contain no continuous sections longer than 500 feet. If runs total more than 500 feet, pull points need to be inserted. (4x4x3 handholes or 4x6x8 maintenance holes) 3. All bends must be long, sweeping bends with a radius not less than six times the internal diameter of conduits 50 mm (2 in) or smaller, or ten times the internal diameter of conduits larger than 50 mm (2 in). 4. All bends must use the same coupling design as the straight sections. 5. Provide a nylon (Rope) or plastic (Jet) line with a minimum test rating of 200 lb capacity in all conduits and innerduct. Label and tie off rope at both ends to a secure, accessible point. 6. Conduits subject to water intrusion must drain back to maintenance hole or pull hole locations away from the telecommunications room and be watertight. 7. All conduits entering a building must be pitched to drain away from the building to avert water intrusion. 8. Conduits entering through walls shall be either encased in a reinforced concrete ductbank that extends 10 feet from entrance to wall or Carlon Multi-Gard EMT 4" with 3 innerducts (or equal). The ductbank or conduits should extend to undisturbed earth, particularly where such backfill is susceptible to load bearing tension. 9. All conduits must be clean, dry, and unobstructed and must be capped or plugged upon installation to keep sediment and other debris from clogging the conduits. Termination kits must be used for sealing all inner and outerducts and must have all conduits ends plugged with the watertight plugs upon installation. 10. Conduits shall be labeled at each terminating end and at each maintenance hole or pull hole. 11. Conduits should extend not less than 3 inches and no more than 6 inches into the MCR. Provide bushings or bell ends at each conduit termination 12. Provide metallic or reinforced elbows where PVC conduits rise out of ground. 13. All conduits and/or ductbanks must be properly firestopped upon installation and refirestopped upon installation of wiring materials. 14. As a life safety issue all conduits made of conductive material must be properly grounded and bonded per NFPA 70 and ANSI/TIA/EIA. 15. Provide an as-built drawings showing: 16. Site layout 17. Locations of maintenance holes 18. Number of conduits and their size 3.4 AERIAL INSTALLATION A. Must be approved prior to installation by KCTCS Technology Solutions B. Fasten cable messenger strand to buildings and poles using galvanized steel wall straps, suspension clamps, etc. C. Use an approved cable guide and lashing device to secure the cable to messenger strand. D. Clamp cable to exterior of building with approved galvanized steel cable clamps. END OF SECTION EXTERIOR COMMUNICATIONS PATHWAYS SECTION PAGE 9