SOW - CADJ 24-1033 Construct LSA Living Facilities_Final.pdf

DEPARTMENT OF THE AIR FORCE

776th EXPEDITIONARY AIR BASE SQUADRON

CHABELLEY AIRFIELD, DJIBOUTI

STATEMENT OF WORK

CONSTRUCT LSA LIVING FACILITIES

PROJECT NO: CADJ 24-1033

23 August 2024

TABLE OF CONTENTS

1. GENERAL

2. DESIGN EFFORT

3. SITE

4. TECHNICAL SPECIFICATIONS

5. BID OPTION 1

6. STORAGE AND DISPOSAL OF CONTRACTOR MATERIALS

7. CONTRACTOR FURNISHED ITEMS AND SERVICES

8. PERIOD OF PERFORMANCE

9. SCHEDULING AND PHASING OF WORK

10. INSPECTION AND QUALITY CONTROL

11. SAFETY REQUIREMENTS

12. MILITARY INSTALLATION REQUIREMENTS

13. PROJECT ACCEPTANCE

14. WARRANTY OF WORK

1. GENERAL

1.1. For the purposes of this document, GOVERNMENT refers to the United States Government as represented by the

Contracting Officer (CO), Civil Engineer (CE) or their designated representative. CONTRACTOR refers to the CONTRACTOR and SUBCONTRACTOR employees, personnel, tools and equipment.

1.2. The contractor shall provide all engineering, designs, management, tools, equipment, materials, supplies, transportation, supervision, and labor necessary to construct mulitple billeting facilities at Chabelley Airfield in accordance with attached drawings and specifications. Billeting facilities shall be roughly 12.2 meters by 45.7 meters.

Work is to include the demolition and disposal of existing structures and necessary site improvements to ensure proper drainage of the site. Contractor shall perform all work in accordance with this Statement of Work (SOW).

Contractor shall coordinate all work with the Contracting Officer and Project Engineer.

1.2.1. The Contractor shall first construct the facility that will be the furthest east. No site work or construction for the second two facilities will begin until a minimum of two weeks after the first facility has been accepted.

1.3. This SOW includes a main body (sections 2 through 4.9.4.) and a bid option (section 5). Proposals submitted in response to solicitations containing this SOW must have a separate section in response to the bid option (section 5). The work described in the bid option may, or may not, be included in the final award; its inclusion will be determined by the price proposed and available funding. Offerors are advised to read solicitation clause 252.236- 7007 Additive or Deductive Items for further details.

1.4. Limits of work shall be as indicated herein or on the contract drawings. The contractor shall not add to, modify, or remove any area which is beyond the limits of work.

1.5. Neither the Government’s review, approval or acceptance of, nor payment for, the services required under this contract shall be construed to operate as a waiver of any rights under this contract or of any cause of action arising out of the performance of this contract, and the Contractor shall be and remain liable to the Government in accordance with applicable law for all damages to the Government caused by the Contractor’s negligent performance of any of the services furnished under this contract.

2. DESIGN EFFORT

2.1. The purpose of this project is to provide all site preparation including demolition existing structures, compaction of subgrade, placement of required base and subbase course materials and construction of a concrete slab on grade, end walls, sandwich panel siding, and roofing, and all utility connections in order to provide three complete and usable lodging facilities within Chabelley Airfield’s Life Support Area (LSA).

2.2. Upon contract award, the Government will appoint a Contracting Officer’s Representative (COR) to verify materials, work, and construction IAW this SOW

2.3. The Contractor shall be responsible for any surveys, excavations, soil borings, soil analyses, chemical tests, laboratory tests, concrete compressive strength tests and any other tests required for construction of this project. Documentation of the above tests or surveys shall be provided in the Design Analysis. The Contractor shall provide investigation, site survey, and analysis to prepare the Design Analysis and Supporting Construction Documents.

2.4. The Contractor shall abide by all applicable regulations, publications, manuals, and local policies and procedures.

Note this criterion spans the entirety of the Unified Facilities Criteria (UFC) as well as the American Society of Civil Engineers (ASCE) seismic design codes, International Building Codes (IBC), International Fire and Fuel codes, National Fire Protection Association (NFPA) codes, and other codes referenced here within. Preparation and completion of design and work shall meet all requirements listed herein and shall, at a minimum abide by the following, including all standards, codes, regulations, and publications incorporated by reference in the following.

Unless specified elsewhere in this SOW, the most current standards, codes, regulations, and publications shall be used. UFCs and the EDRC/ITL TR-19-7 are downloadable from the Whole Building Design Guide (WBDG) webpage at www.wbdg.org.

2.4.1. USACE EM 385-1-1, Safety and Health Requirements

2.4.2. UFC 1-200-01, DoD Building Code

http://www.wbdg.org/

2.4.3. UFC 3-220-10N, Soil Mechanics

2.4.4. UFC 4-010-01, Minimum Anti-terrorism Standard for Buildings

2.5. Where conflict exists between UFC 1-200-01 criteria and specification text below, the more stringent criteria shall govern.

2.6. The Contractor shall be responsible for locating all utilities in the area of construction, and for accommodating or modifying them, as required for the construction of this project.

3. SITE:

3.1. Site Investigation:

3.1.1. The Contactor shall survey the proposed construction area and set temporary survey benchmarks that shall be protected for the duration of the project. The survey shall include and identify all visible objects above ground and all known, unknown or detectable underground utilities (i.e., communications, electrical, etc.). The Contractor shall clearly mark all utility connection tie-in points.

3.1.2. The Contractor shall perform a physical survey of the site to determine areas that need to be graded and leveled prior to excavating for billeting facility foundations. The Contractor shall provide fill and/or excavate material where needed to ensure proper drainage of the site to prevent ponding and/or flooding of adjacent facilities.

3.1.3. For all work requiring excavation, the Contractor’s proposal shall include all necessary equipment, labor and materials required to excavate through rock, remove surplus materiel and provide the CO approved backfill materiel as directed. Backfilling shall be approved materiels (e.g., base course) with sieve analysis approved prior to commencing work.

3.2. Demolition: The Contractor shall be responsible for all work necessary to prepare the site for construction to include utility relocations as well as the removal and disposal of existing structures that shall obstruct the project construction.

3.2.1. The Contractor shall cordon off the project area with contractor-furnished cones, caution tape, rope, signs, flashing lights, etc. to ensure safety of personnel. The Contractor shall be responsible for repairing or replacing any work that does not meet specifications due to inadequate barricades. The Contractor shall ensure site is cordoned off during hours of darkness with caution tape to ensure foot traffic does not transit through site during demolition phase.

3.2.2. All salvageable items and material, removed from the site by the Contractor shall be returned to the Government.

The serviceability of salvaged items and material shall be determined by the COR with the approval of the CO.

The Contractor shall transport the salvaged items and materials to a location to be specified by the COR with the approval of the CO.

3.3. Site Clean-Up: The Contractor shall remove trash and debris from the site daily. All materials and debris which result from demolition operations shall be disposed of, in a legal manner, into appropriate trash receptacles provided by the contractor at or around the demolition site.

3.4. Material Lay-Down Area: The Government will provide a location to serve as a material lay down area. The contractor is responsible for keeping this area orderly. The Contractor shall be responsible for the security of all material located at this area.

4. SPECIFICATIONS:

4.1. Architectural:

4.1.1. All brand-name materiel selections indicated below and/or on the project drawings shall be “or equal” unless otherwise specified by the CO.

4.1.2. Roof, Wall and Ceiling Panels:

4.1.2.1. All exterior surfaces of the facility shall be painted Standard Color RAL 1001 (beige). This includes structural steel, fasteners, gutters, downspouts, rake trim and eave trim.

4.1.2.2. All interior surfaces of the facility shall be painted Standard Color RAL 9010 (white).

4.1.2.3. Internal walls shall be constructed in a manner to achieve an STC 40 or equivalent sound rating.

4.1.2.4. All ceiling tile selections shall be submitted for approval.

4.1.3. Interior and Exterior Doors and Locks:

4.1.3.1. Interior doors shall be metal with metal frames.

4.1.3.2. Interior lodging doors shall be installed with a mechanical push button lock with a lever style handle and no key core system; Simplex L1031 or equal. Door code will not be changed from the factory setting. Doors shall be capable of locking from the inside without key.

4.1.3.3. Exterior doors, electrical, and communication doors shall be installed with a mechanical push button lock with a lever style handle and no key core system; Simplex L1031 or equal. Door code will not be changed from the factory setting.

4.1.3.4. All doors shall include a door closer and exterior doors shall include a wind chain.

4.1.3.4.1. Door closers shall be affixed to the inside of the door.

4.1.3.5. All doors to interior doors to living quarters shall have a minimum of 1-hour fire resistance rating.

4.1.3.6. All doors and supporting hardware shall be submitted for approval.

4.1.4. Means of Egress: Corridors shall be of sufficient width to accommodate the required occupant load and shall not be less than 22 inch (1120mm). All points of egress must be marked with photo luminescent exit signs and egress path markings must be designed and installed in accordance with NFPA 101. The charging light source must be continually illuminated at all times with normal power. The charging light source must not be on a switched circuit.

4.1.5. The Contractor shall be responsible for placing a metal sign on the facility denoting the building number as determined by the Government. The sign shall be included as a submittal.

4.2. Civil:

4.2.1. The Contractor shall conduct all site preparation work, including but not limited to utility modifications, utility services and all peripheral exterior work such as concrete pads and worksite security.

4.2.2. The Contractor shall establish finished floor elevations at a minimum of 200mm above finished grade elevation directly in front of the project’s corner of the building. Final Floor Elevation (FFE) shall be such that all storm water is directed away from the facilities. Storm drainage shall be designed to be compatible with the slope of the service main utility corridor. The Contractor is required to grade, supply, place, and compact 1” single size at a 95% modified proctor at a gradient no greater than 2% to 5m for the exterior of each facility. Additionally, the Contractor shall grade and provide 95% compacted 1” single size for the area between the buildings at a slope facility adequate drainage from the site. The Contractor shall grade all finished areas to ensure proper drainage away from the facility while ensuring this work does not cause water to accumulate near surrounding facilities or roads.

4.2.3. The Contractor shall provide all electrical and telecommunication utilities. Communication connections shall be made with SCH 80 UPVC pipe. Utility service connections shall be properly identified with detectable metal strip marking tape. The Contractor shall account for 20% of hand trenching and backfilling in their proposals.

4.2.3.1. The Government shall provide as-designed/as-built site plans for the service main utility corridor showing the location of utilities and other facilities critical to life, safety and health.

4.2.4. The Contractor shall connect each facility to the nearest electrical and telecommunication utility. For electrical, the Contractor shall be responsible for bringing all electrical connections to the electrical room as shown on the design drawings.

4.2.5. The Contractor shall take special care to review and field location all utility lines in the area prior to on-site construction. It is essential to coordinate with the Government prior to any civil/site work to avoid relocating or damaging existing utility lines during construction. The Contractor shall hand dig with 2m of each side of a marked utility. The Contractor is responsible to maintain the initial government marking throughout the duration of the project. Any existing utility damaged during construction shall be repaired within 24 hours of the damage occurring. The Government reserves the right to repair damaged lines and the Contractor shall repay the Government for this cost.

4.2.6. All existing utility manholes, electric and other utilities shall be inspected at the end of the project for any damage made by the Contractor. The Contractor shall be responsible and incur any associated costs to repair any damages to underground / above ground utilities in accordance with all applicable UFC codes and standards.

4.2.7. Trenching:

4.2.7.1. All trenching depths shall be specified in shop drawings and must be in accordance with the respective code. If the code cannot be met, it must be highlighted and justified.

4.2.7.2. All trenches shall be inspected and surveyed by the CO and CE prior to backfill.

4.2.7.3. All trenching depths shall be documented in a detail within the as-builts.

4.2.8. Concrete:

4.2.8.1. All concrete, whether it is precast or cast-in place, must have a minimum 5000 psi compressive strength.

The Concrete Mix Design must include Type V cement and be submitted for approval to CE. Minimum concrete thickness shall be 15cm.

4.2.8.2. Epoxy use to embed tie bars and for similar work shall be made specifically to be used with concrete.

The thermal expansion coefficient of the epoxy shall match the thermal expansion coefficient of the concrete used. The product used requires CO approval. The Contractor shall provide the type of rock aggregate used in the concrete mix, (granite, sandstone…etc.) to the CO with the epoxy submittal.

4.2.8.3. Concrete bonding agent(s) shall be a product specifically made for that purpose; the product used requires CO approval.

4.2.8.4. The Contractor shall place a 1.2m x 3.65m concrete pad at all exterior doors to include exterior communication and electrical doors. The Contractor shall also place concrete pads for all exterior HVAC split units.

4.3. Structural:

4.3.1. The Contractor shall provide structural review of facility, as well as the design and preparation of shop drawings for the installation of the end walls, sandwich panel siding, and roofing and other modifications necessary to provide a safe, complete structure. Shop drawings shall include all required details to include, but not limited to rain gutters and door flashing. Structural work shall include all work and materials, (including all exterior doors and openings,) required to complete a sealed and weatherproof exterior envelope.

4.3.2. The basis for design shall be a thickened concrete slab with a steel superstructure.

4.3.2.1. The Contractor shall employ the services of engineering professionals as necessary to meet the following design requirements:

4.3.2.1.1. Loads: Dead Load (Own Weight + 0.5 kPA); Floor Live Load (4 kPA); and Roof Live

Load (1 kPA)

4.3.2.1.2. Wind: Must withstand minimum 110mph; Exposure C environment

4.3.2.1.3. Seismic: Based on seismic conditions for Djibouti, as specified in ASCE Seismic Design Criteria and UFC 1-200-01.

4.3.2.2. The Contractor shall provide structural design of the modular billeting facility. The allowable live load or wind load deflection of the roof and wall framing members shall not exceed 1/180 of their span. The maximum bare frame drift shall not exceed H/100. The facility shall be designed using gravity loads and considering basic combinations of appropriate service loads, wind loads and seismic loads.

4.3.2.3. The Contractor shall provide structural calculation for the design of foundation supporting vertical and moment due to lateral loads to support the facility and meet wind and seismic requirements.

4.3.2.4. The Contractor shall provide a roofing plan. All the framing members that support the roof shall be called out. The connection of the members supporting the roofing structure to the foundation shall be fully detailed. The base plate size, bolt sizes and spacing, the length of the bolts in the foundation shall be called out.

4.3.2.5. The Contractor shall provide foundation and anchoring plan. This is to include slab reinforcement as well as the concrete anchoring layout.

4.4. Heating Ventilation and Air Conditioning (HVAC):

4.4.1. Split Units (ductless):

4.4.1.1. The Contractor shall provide and install split cooling units as indicated on the contract drawings.

Heating/Cooling load calculations shall be submitted to the CO and CE. The units shall be able to supply both cooling and heating.

4.4.1.2. Each split unit shall have both an interior disconnect switch and exterior disconnect switch. The Contractor shall install exterior disconnect switches adjacent to the unit.

4.4.1.3. The outside portion of the split unit shall be installed on a minimum of 610mm high stands. The stand shall be fabricated with 50.8 mm x 50.8mm x 6.35 mm angle iron, sand blasted, primed and painted.

The contractor shall submit the split unit stand as a material submittal.

4.4.1.4. The outside unit shall be placed at minimum 305mm away from the facility wall.

4.4.2. The Contractor shall provide sleeves and prepared openings for duct mains, branches and/or other penetrating items and install during construction of the surface to be penetrated. Cut sleeves flush with each surface. Sleeves and framed openings are also required where grilles, registers, and diffusers are installed at the openings. Provide 25mm clearance between penetrating and penetrated surfaces except at grilles, registers, and diffusers. Pack spaces between sleeve or opening and duct or duct insulation with mineral fiber conforming to ASTM C553, Type 1, Class B-2.

4.4.3. The Contractor shall install all work so that parts requiring periodic inspection, operation, maintenance, and repair are readily accessible.

4.4.4. The Contractor shall provide a complete submittal package for the entire HVAC system including all components (HVAC units, controls, ductwork, shop drawings, etc.). This includes the manufacturer's product data sheets for the specific models controls, ductwork, etc. This also includes the manufacturer's product data for the specific models proposed for use on this contract.

4.4.5. The Contractor shall provide the following shop drawings, to be reviewed and approved in writing by the CO.

The written permission to use the item(s) must be received by the Contractor prior to the purchase of any materiel:

4.4.5.1. Manufacturer’s Installation Instructions

4.4.5.2. Operations and Maintenance Manuals

4.4.6. The Contractor must protect all metallic materiels against corrosion. Manufacturer shall provide rust-inhibiting treatment and standard finish for the equipment enclosures, and ensure all materiels are rust free at closeout.

4.5. Electrical:

4.5.1. The Contractor shall furnish all labor, materiels and equipment to install complete and make operational all electrical systems as here in.

4.5.2. Related Works:

4.5.2.1. Installation of electrical conduit stub-ups for electrical utilities. No wall penetrations shall be allowed for installing the main entrance cables. The stub-up shall include all excavation and backfill to install the conduit. This work is to be completed prior to work on the exterior floor slab and utility relocations.

4.5.2.2. Cast-in-place concrete work, including concrete encasements for electrical duct banks (if any) and equipment pads with reinforcing steel as required.

4.5.3. Reference Standards:

4.5.3.1. Unified Facilities Criteria (UFC)

4.5.3.2. National Electrical Code (NEC)

4.5.3.3. International Electrotechnical Commission (IEC) Standards

4.5.4. Required Calculations:

4.5.4.1. The Contractor shall provide short circuit, selective coordination, voltage drop and arc flash study of the complete electrical distribution system. The study shall include motor starting/running calculations.

The studies shall be performed on EasyPower software which is the only certified software for the Air Force. The contractor should obtain and verify all information needed to conduct the study.

4.5.5. General:

4.5.5.1. All electrical and power requirements shall be to a 120/208V, 60 Hz standard.

4.5.5.2. Use of shop or field fabricated electrical equipment assemblies that are not manufacturer’s standard catalog products or do not conform to the industry and technical society standards are not acceptable.

4.5.5.3. The Contractor shall test all 750V cable insulation with a megger meter after installation. The Contractor shall submit a written test report of the results to the CO and CE.

4.5.5.4. Electrical equipment shall be protected at all times against mechanical injury or damage by water.

Electrical equipment shall not be stored outdoors. Electrical equipment shall be stored in dry permanent shelters.

4.5.5.5. The Contractor shall provide materials and equipment that are products of manufacturers regularly engaged in the production of such products which are of equal material, design and workmanship.

Where two or more items of the same class of equipment are required, these items shall be products of a single manufacturer; however, the component parts of the item need not be the products of the same manufacturer unless stated in the technical section.

4.5.5.6. Provide for each system and principal item of equipment as specified in the technical sections for use by operation and maintenance personnel. The operating instructions shall include the following: (a) safety precautions; (b) wiring diagrams, control diagrams and control sequence for each principal system and item of equipment; (c) start-up, proper adjustment, operating, lubrication and shut-down procedures; (d) the procedure in the event of equipment failure; (e) other items of instruction as recommended by the manufacturer of each system or item of equipment.

4.5.5.7. Electrical equipment shall have at least two (2) coats of factory applied paint which shall, at a minimum, meet the requirements of National Electrical Manufacturers Association (NEMA) 250 corrosion resistance test.

4.5.5.8. Provide color coding of conductor of the 120/208V system as follows:

4.5.5.8.1. Phase A – BLACK

4.5.5.8.2. Phase B – RED

4.5.5.8.3. Phase C – BLUE

4.5.5.8.4. Neutral – WHITE

4.5.5.8.5. Ground – GREEN

4.5.6. Exterior Power Distribution:

4.5.6.1. The main entrance service 120/208V for the facility should be supplied by an existing service feeder provided by others. That feeder is running from a dedicated circuit breaker located at existing distribution substation to the facility location. The contractor should test & protect that service feeder and extend it if required to be tied into the main disconnect of the facility.

4.5.6.2. Do not route main entrance cable or conduit through the facility wall. Installation of electrical conduit stub-ups is required.

4.5.6.3. Tag all underground cables in all accessible locations.

4.5.6.4. Extension cables (if required) shall be armored, XLPE insulated and PVC sheathed.

4.5.6.5. No cable splices shall be allowed underground without underground structure for inspection.

4.5.6.6. Make raceway entrances to building with PVC conduit (Schedule 40).

4.5.6.7. Where bends in raceways are required, use long radius elbows, sweeps and offsets.

4.5.6.8. Plug spare raceways and seal them watertight at locations.

4.5.6.9. Connections to HVAC equipment shall be in Liquid-tight Flexible Metal Conduit (LFMC). LFMC shall have a protective jacket PVC extruded over a flexible interlocked galvanized steel core to protect wiring against moisture, oil, chemicals, and corrosive fumes. Ensure fittings for liquid-tight flexible metallic conduit are specifically designed for such conduit.

4.5.6.10. All safety switches (a.k.a. disconnect switches) shall be IP65, and shall be heavy-duty type with enclosure, voltage, current rating and number of poles as indicated on the drawings. Ensure switch construction is such that, when the handle is in the “ON” position, the cover or door cannot be opened.

Provisions shall be provided that allow the handle to be locked in the “OFF” position. Ensure the switch cannot be locked in the “ON” position. Switches shall be quick-make/quick-break type and have terminal lugs for use with copper conductors.

4.5.6.11. All underground cables should be in rigid PVC conduit (Schedule 40) if embedded in concrete.

4.5.6.12. All above ground wires & cables in outdoors areas should be in Rigid Metal Conduit. PVC conduits are not allowed above ground level.

4.5.6.13. All circuit breaker panel enclosures & devices located outdoors shall be rated at IP65

4.5.6.14. All outdoor receptacles shall have GFCI protection at 30mA and the box and cover shall be rated at

IP65 (while in use).

4.5.7. Interior Power Distribution:

4.5.7.1. All wires and cables in all panels should be labeled.

4.5.7.2. The Contractor should size the feeder conductors for a maximum voltage drop of 2% and the branch circuits for a maximum voltage drop of 3%.

4.5.7.3. Branch circuit conductors, including power and lighting applications, shall in no case be less than 4mm2.

4.5.7.4. Provide branch circuit breakers rated for 20A minimum.

4.5.7.5. A dedicated neutral conductor shall be routed with each 120V, single-phase circuit. Shared neutrals are not allowed.

4.5.7.6. Conductors shall be of high conductivity annealed copper with concentric stranding for stranded conductors. All wires for lighting and power systems pulled inside conduits shall be single core, insulated with PVC compound, of grade not less than 450/750 volts.

4.5.7.7. All interior wiring & cabling shall be installed in EMT conduit systems concealed in finished spaces (i.e. the office area) in walls or chase or above ceiling unless noted otherwise. Cable trays, trunks and ladders are not required.

4.5.7.8. Maximum conduit fill shall be based on the requirements of the NEC. Maximum fill as a percentage of conduit cross-sectional area shall be 40% for more than two wires.

4.5.7.9. All EMT conduit shall comply with UL 797 and shall be zinc coated steel. All couplings and connectors shall be zinc-coated, rain-tight, gland compression type with insulation throat. Crimp, spring or set-screw type fittings are not acceptable.

4.5.7.10. All back boxes shall match the raceway material.

4.5.7.11. The use of Electrical Nonmetallic Tubing is prohibited. Use Flexible Metallic Conduit (FMC) to provide power for recessed and semi-recessed lighting fixtures. FMC shall have a properly sized ground wire per NEC 2017, 348.56 and shall be supported per the provisions of 348.30 (A) and (B). Flexible metal conduit connections may not be longer than 6 feet-0 inches (1830 mm) and must originate in a junction box, which in turn is connected to a type of rigid, fixed, properly supported raceway. FMC may never be installed in a manner which stretches it tight; it must have sufficient slack to form a right angle. FMC shall be galvanized steel and comply with UL 1. Fittings for FMC shall be a type specifically designed for such conduit.

4.5.7.12. Junction boxes and pull boxes shall have NEMA ratings suitable for the location in which they are installed.

4.5.7.13. All conduits shall be supported independently at intervals of equal or less than 90 cm. Under no circumstances shall conduit carrying power be used for any type of structural support. Junction boxes shall be secured to studs using a minimum of two (2) screws and securely mounted to the drywall, power-poles or wire-mold. Light fixtures shall be chain hung with multiple chains or secured to the ceiling grid or wall with screws or other fasteners.

4.5.7.14. No conduit smaller than 20 mm in electrical trade size shall be used, nor shall any have more than the equivalent of three 90 degree bends in any one run.

4.5.7.15. Combination expansion-deflection fittings shall be used where conduits cross structure expansion joints.

4.5.7.16. All conduit entering or leaving electrical panel shall be stubbed up directly below the vertical section in which the conductors are to be terminated. Top entry is prohibited for all electrical panels.

4.5.7.17. No wire shall be pulled until the conduit system is complete in all details; in the case of exposed work, until the conduit system has been completed in every detail. The ends of all conduits shall be tightly plugged to exclude dust and moisture during construction.

4.5.7.18. Wall switches shall be 10A, 250 Volt heavy duty, specification grade, toggle action, flush mounting quiet type.

4.5.7.19. All wiring devices shall be matching ivory color. Wiring devices and faceplate colors must match and be consistent with the interior wall types and colors. Use grounding type wiring devices. Outlet boxes must not be placed back to back. Provide a minimum of 12 inches (300 mm) of separation between outlet boxes located on opposite sides on common walls.

4.5.7.20. Under no circumstances shall any circuit breaker exceed the rated ampacity of the branch circuit wiring that it feeds. All circuit breakers in an electrical panel must consistently match the panel manufacturer and calculated short circuit ratings.

4.5.7.21. All electrical panels should be supplied from the manufacturer of the functional units (the circuit breakers). All electrical panels should be design verified by the original manufacturer of the functional units per IEC61439.

4.5.7.22. All sections and devices of the electrical panels shall be UL listed and labeled. Service equipment shall be UL labeled as suitable for use as service entrance equipment.

4.5.7.23. Provide a minimum of 15% empty space and 15% spare capacity (ampacity) for all electrical panels.

4.5.7.24. Distribution and branch circuit panel boards should be of the wall-mounted, dead-front type, equipped with bolt-on circuit breakers.

4.5.7.25. The contractor should provide a digital metering unit at the main breaker of the facility.

4.5.7.26. Electrical panels buses: non-tapered, tin-plated copper. Provide a fully rated neutral bus. Provide a copper ground bus extending throughout the entire length of the panel, firmly secured to each vertical section structure and equipped with lugs for external ground connections.

4.5.7.27. RCBO 30mA circuit breakers shall be used for all branch circuits except the branch circuit that feeds the fire alarm panel. Ensure that the circuit breaker short circuit interrupting rating is not less than the available short circuit current at its location.

4.5.7.28. Provide a lock-on breaker in the branch panel board that serves as the primary power supply for the fire protection system. Identify that breaker in red permanently.

4.5.7.29. Ensure that conduit runs between outlet and outlet, between fitting and fitting, or between outlet and fitting does not contain more than the equivalent of three (3) 90-degree bends, including those bends located at the outlet or fitting. Do not install crushed or deformed conduit.

4.5.7.30. The contractor should field test all electrical panels on-site by performing physical, electrical, and mechanical tests in accordance with the manufacturer's recommendations & NETA ATS.

4.5.7.31. The contractor should remove all rubbish and debris from inside and around the electrical panels.

Remove dirt, dust, and concrete spatter from the interior and exterior of the equipment using brushes, vacuum cleaner, or clean, lint free rags.

4.5.7.32. The Contractor shall perform field adjustments of the protective devices as required to place the equipment in final operating condition. The settings shall be in accordance with the approved short circuit and protective devices coordination study.

4.5.8. Interior Lighting:

4.5.8.1. All lighting and control equipment shall be full complied with UFC 3-530-01 and the latest version of the Illuminating Engineering Society of North America (IESNA).

4.5.8.2. Only solid-state LED luminaries shall be used in the facility.

4.5.8.3. The Contractor should submit computer-generated photometric plans for each space to verify proposed luminaires and locations meet the required performance per UFC 3-530-01.

4.5.8.4. Use a correlated color temperature (CCT) of no greater than 4100K for all interior spaces. Do not mix source CCTs within a single building. Use a color rendering index (CRI) of no less than 80.

4.5.8.5. All LED luminaires require a 10-year warranty.

4.5.8.6. For fixture driver, total current harmonic distortion (THD) less than or equal to 20% at full and 50% output. Power factor (PF) greater than or equal to 0.9 at full and 50% output.

4.5.9. Exterior Lighting:

4.5.9.1. All lighting and control equipment shall be full complied with UFC 3-530-01 and the latest version of the Illuminating Engineering Society of North America (IESNA).

4.5.9.2. Only solid-state LED luminaries are permitted.

4.5.9.3. Exterior lights shall be rated for exterior use in extremes of heat and dust (IP65).

4.5.9.4. Use a CCT of no greater than 4100K. Use a color rendering index (CRI) of no less than 70.

4.5.9.5. Use fully shielded or IES U0 luminaires to eliminate direct light above the horizontal plane.

4.5.9.6. For fixture driver, total current harmonic distortion (THD) less than or equal to 20% at full and 50% output. Power factor (PF) greater than or equal to 0.9 at full and 50% output.

4.5.9.7. All fixtures should be Photo sensor on/ photo sensor off. At sunset or shortly after, the lights automatically turn on. At sunrise or shortly before, the lights automatically turn off.

4.5.9.8. Exterior lights shall be in an aluminum housing with a tempered glass cover.

4.5.9.9. LED luminaires require a 10-year warranty.

4.5.10. Lightning and Grounding Protection System:

4.5.10.1. A ground ring shall be provided around the perimeter of the building and shall consist of 120-mm2 bare copper ground conductors. The ground conductors shall be connected to ground rods located every 15 meters. The ground ring shall be located 1 meter off the exterior wall and shall be 760 mm below finished grade. Ground rods shall be copper-clad steel, 20-mm round, driven to a depth of 3 meters.

Connection to the building ground loop system shall be by exothermic welding.

4.5.10.2. This specification is based on compliance with NFPA 780 as specified in UFC 3-575-01, "Lightning and Static Electricity Protection Systems". Provide a lightning protection system that meets the requirements of NFPA 780. Lightning protection system consists of air terminals, roof conductors, down conductors, ground connections, and ground ring electrode conductor. Expose conductors on the structures except where conductors are required to be in protective sleeves. Bond secondary conductors with grounded metallic parts within the building. Make interconnections within side-flash distances at or below the level of the grounded metallic parts.

4.5.10.3. Roof-Mounted Components Coordinate with the roofing manufacturer and provide certification that the roof manufacturer's warranty is not violated by the installation methods for air terminals and roof conductors.

4.5.10.4. Air Terminals: Use a standing seam base for installation of roof conductors on a standing seam metal roof that does not produce any roof penetrations.

4.5.10.5. Roof conductors are to be concealed within the ceiling cavities as much as practicable.

4.5.10.6. Down Conductors: Protect exposed down conductors from physical damage as required by NFPA

780. Use rigid steel conduit to protect down conductors. Down conductors may be concealed within the wall cavities if accessible during construction.

4.5.10.7. Grounding Electrodes: For ground ring electrode, provide continuous 120mm2 bare stranded copper cable. Lay ground ring electrode around the perimeter of the structure in a trench not less than 762 mm nor more than 2440 mm from the nearest point of the structure foundation, and at least beyond the drip line for the facility. Install ground ring electrode to a minimum depth of 3m. Install a ground ring electrode in earth undisturbed by excavation, not earth fill, and do not locate beneath roof overhang, or wholly under paved areas or roadways where rainfall cannot penetrate to keep soil moist in the vicinity of the cable.

4.5.10.8. The minimum ground rod dimensions are 10 feet (3.0 m) in length and ¾ inch (20 mm) diameter.

Provide copper-clad steel, solid copper, or stainless steel ground rods.

4.5.10.9. Install equipment grounding conductors with all feeders and branch circuits.

4.5.10.10. Bond all steel building columns in new structures together with ground wire in rigid conduit and connect to the distribution equipment ground bus.

4.5.10.11. Lightning Protection and Grounding System Test: Test the lightning protection and grounding system to ensure continuity is not in excess of 1 ohm and that resistance to ground is not in excess of 10 ohms. Provide documentation for the measured values at each test point. Test the ground rod for resistance to ground before making connections to the rod. Tie the grounding system together and test for resistance to ground. Make resistance measurements in dry weather, not earlier than 48 hours after rainfall. Include in the written report locations of test points, measured values for continuity and ground resistances, and soil conditions at the time that measurements were made. Submit results of each test to the CO and CE.

4.6. Communications:

4.6.1. Inside Plant (ISP):

4.6.1.1. Reference the latest version of the following documents:

4.6.1.1.1.1. Air Force Base Area Network Functional Specification (BAN-FS)

4.6.1.1.1.2. ANSI/TIA-568 – Generic Telecommunications Cabling for Customer Premises

4.6.1.1.1.3. ANSI/TIA-569 – Telecommunications Pathways and Spaces

4.6.1.1.1.4. ANSI/TIA-606 – Administration Standard Telecommunications Infrastructure

4.6.1.1.1.5. TIA-942 – Telecommunications Infrastructure Standard for Data Centers

4.6.1.1.1.6. UFC 3-580-01 – Telecommunications Interior Infrastructure Planning and Design

4.6.1.1.1.7. MIL-HDBK-232A – Red/Black Engineering-Installation Guidelines

4.6.1.1.1.8. CNSSAM TEMPEST/1-13 – Red/Black Installation Guidance

4.6.1.1.1.9. CNSSI 7003 for additional design requirements for classified infrastructure

4.6.1.2. The Contractor shall submit shop drawings for communications layout and facility connection. The

Contractor shall verify all measurements during site visit.

4.6.1.3. The Contractor shall furnish and install all Data and Telecom outlets, faceplates, junction boxes, wire-mold and associated conduit and basket trays. The Contractor is NOT responsible for furnishing or installing any Voice, Data, Communications or phone wiring or cabling.

4.6.1.4. The Contractor shall install the Communications Cabinet in the Communications room on 19.05mm (3/4”) Fire Rated Plywood or 19.05mm (3/4”) Plywood with two (2) coats of Fire Retardant Paint.

4.6.1.5. The Contractor shall install a minimum of 1 inch (27mm) electrical metallic tubing (EMT) conduit from basket tray to each outlet. To avoid cutting cable, place rubber grommets on edge of 1” EMT.

Reference UFC 3-580-01 and ANSI/TIA 569. Cable basket tray shall run back to Communications room water falling to rack location(s). Cable tray shall be installed to US NFPA/NEC code or UK equivalent.

4.6.1.6. A minimum of one equipment/telecommunications outlet space shall be installed every 5m in the lodging facility’s hallway. An equipment/telecommunications outlet should be installed at the same height and within 1m (3ft) from a power outlet. The maximum fill ratio of any cable tray or conduit is 50%. Reference ANSI/TIA-569. All wall outlets, patch panels, and cables shall be labeled. Reference ANSI/TIA-606, Table 4, and Table 5. The Contractor shall install CATV locations at 1800mm where designated and place electrical receptacle at 1800mm next to each CATV designation(s).

4.6.1.7. Each Communication outlet shall be connected to 1 inches conduit by 4 inch x 4 inch gang-box (see

Image 1, below), gang-box shall be mounted by single-gang mud-ring reducer (see Image 2, below).

The mud-ring shall be taped and floated by contractor (see Image 3, below).

4 inch x 4 inch Gang-box (Image 1)

Single-gang mud ring reducer (Image 2)

Final installation (Image 3)

4.6.1.8. Communications Equipment Location (CEL), also known as Telecommunication Room (TR), is a location within a building where network equipment (e.g. switches, routers) is located. Within the CEL, the network equipment is connected to the horizontal station cabling to attach end-users and patched to upstream network equipment to connect to the network backbone. CELs shall have sufficient heating, ventilation, air conditioning, cable pathway access, and space to allow for maintenance and operation of all equipment contained within it, IAW equipment manufacturers installation recommendations. The CEL shall be a physically controlled area, with lockable room entrances or with lockable cabinets.

Communications Equipment Locations must be kept clear and may not be used as storage facilities.

Reference AFBAN-FS, paragraph 4.4.

4.6.1.9. For all TRs, provide a minimum of two dedicated un-switched 20-amp or equivalent Host Nation (HN) voltage/frequency services and a duplex receptacle power outlet, each service on a separate branch circuit for communication equipment.

4.6.1.10. Communication racks and/or equipment shall not be placed under Conditioning (A/C) units.

4.6.2. Outside Plant (OSP): This section refers to the pathways used to install cabling on a base. There are three types of installation techniques for distribution cables.

4.6.2.1. Reference the latest version of the following documents prior to reading this section:

4.6.2.1.1. AFI 65-601V1 – Financial management, Budget Guidance and Procedures

4.6.2.1.2. ANSI/TIA-758 – Customer-Owned Outside Plant Telecommunications Infrastructure

4.6.2.1.3. ANSI/BICSI 006 – Distributed Antenna System Design and Implementation Best Practices

4.6.2.1.4. BICSI OSPDRM

4.6.2.1.5. BICSI TDMM

4.6.2.1.6. NFPA 70 – National Electric Code, Article 110.70

4.6.2.1.7. UFC 3-580-01 – Telecommunications Interior Infrastructure Planning and Design

4.6.2.1.8. UFC 3-550-01 – Exterior Electrical Power Distribution, Chapter 3

4.6.2.2. MHDS design is coordinated with the Communications section and CO for purchase. The following assists in providing requirements to develop a contract for MHDS.

4.6.2.3. Man-hole (MH)/Hand-hole (HH) construction shall be pre-cast type or cast-in-place. Reference ANSI/TIA-758 paragraph 5.2.1.

4.6.2.4. MH shall be 2400mm X 1800mm X 2400mm (8’-0” X 6’-0” X 8’-0”) due to mitigate different confined space regulations and building standards.

4.6.2.5. HH shall be 1524mm X 1524mm (5’-0” X 5’-0”) for MSAB installation due to mitigate different confined space regulations and building standards.

4.6.2.6. Thicker reinforced walls shall be designed for cast-in-place MH/HHs, minimum thickness is 152.mm to 203.2mm (6” to 8”).

4.6.2.7. Outer surface shall be sealed to prevent water penetration, as thick walls can withstand higher exterior water pressure for areas with high water table.

4.6.2.8. Each MH/HH shall have cable racks, cable rack hooks, pulling eye/iron, ground rod, and sump hole.

4.6.2.9. Cable racks and hooks shall be sized to accommodate current and projected requirements, plus 25% growth.

4.6.2.10. Corrosion-resistant cable pulling irons (eyes) shall be installed opposite each main conduit entrance 90 – 230mm (3 1/2" to 9”) from floor and shall be embedded upon construction of MH.

4.6.2.11. A ground rod shall be installed in the floor of the MH, galvanized steel or iron with copper cladding, 16mm (5/8”) diameter and minimum 2.7m (9’-0”) long with 101.6mm (4”) exposed above the floor, and located 50.8mm (2”) from MH wall.

4.6.2.12. A sump shall be cast into the sloped floor of the MH and shall be 330.2mm (13”) diameter and

101.6mm (4”) deep with a secured, perforated cover for drainage.

4.6.2.13. Each MH/HH shall have one (1) entrance with a round lid, marked as a Communications MH or HH.

MH covers and structure must be rated at a minimum of AASHTO H20. References ANSI/TIA 758, paragraphs 5.2 – 5.2.5.3; BICSI OSPDRM, Chapter 4, Section 4; FAA AC:150/5370-10H item D- 751; FAA AC: 150/5320-6F B.2.4 and NFPA 70, Article 110.70.

4.6.2.14. MH or HH must be placed when conduit or duct exceeds 183 m (400 ft.). Length of conduit runs shall not exceed 122 (400 ft.) between pulling points. Reference ANSI/TIA 758, paragraphs 5.1.1.2.3. and 5.2.1.2.

4.6.2.15. MH should not be placed within 15.2m (50’-0”) of the curb radius or right of way line of the intersecting road. MH placed in the traveled portion of the roads; the preferred location is 1.5m (5’- 0”) from the curb. Reference ANSI/TIA-758, paragraph 5.2.1.2.

4.6.2.16. MHDS underneath roadways, parking lots, and high traffic areas, shall use 4 - 6 each 101.6mm (4”) standard schedule 80 conduit encased in concrete (Reference ANSI/TIA-758-B paragraph 5.1.1.2.2).

Concrete shall extend 3m (10’-0”) on either side of roadway or parking lot.

4.6.2.17. When using a non-square MH, the main conduit entrances shall be placed on the end (short width) walls and halfway between the ceiling and floor.

4.6.2.18. MH/HH conduit entrance should be near corners for wall racking considerations. Ducting shall have a minimum inside diameter of 101.6mm (4”) US standard Schedule 80.

4.6.2.19. HHs may be placed when bends exceed two (2) 90º bends or a total of 180º or the section conduit length requires a pull point for ease of cable installation.

4.6.2.20. A HH shall be placed 15.2m – 21.3m (50’-0” – 70’-0”) from a new facility.

4.6.2.21. Telecommunication MH/HHs shall not be shared with electrical installations other than those needed for telecommunications equipment. Reference ANSI/TIA-758, paragraph 5.2.2.1.

4.6.2.22. Cable vaults are to be placed in a control area, at enduring Critical Access Node (CAN) facilities such as datacenter (TCF, NCC), ITB, etc.

4.6.2.23. Cable vaults provide environmentally controlled air ventilation, temperature, humidity, and moisture control. Provide lighting and power receptacles. Further protection shall be ensured by having at least two physically diverse pathways to the connecting MHDS.

4.6.2.24. Cable vaults shall be designed with the foundation of the building as part of the subterranean structure.

Outer surface shall be sealed to prevent water penetration, as thick walls can withstand higher exterior water pressure for areas with high water table.

4.6.2.25. Conduit stub-outs shall be placed at a minimum of three (3) per wall and shall be extended beyond the building foundation for expansion and diverse paths if it is not initially in use.

4.6.2.26. All conduit runs shall have a tracer wire installed.

4.6.2.27. Conduits shall be glued together when installed between MH/HH. Conduit shall be installed to minimum depth 1219.2mm (48”) and marker tape installed 304.8mm (12”) above conduit.

4.6.2.28. If conduit is installed less than 914.4mm (36”) deep, it should be encased in concrete for protection.

Reference ANSI/TIA-758-B, paragraph 5.1.1.2.2.

4.6.2.29. Non-concrete encased conduit shall have compacted sand or granular backfill 76.2mm (3”) below, 76.2mm (3”) on sides, 25.4mm (1”) between, and 304.8mm (12”) above.

4.6.2.30. Conduit entry shall be beveled or rounded from the manufacturer to prevent sheath damages. MH/HH that are core-drilled or having windows to install conduit shall install manufactured fabricated end bells. Epoxy sealer or concrete shall be used to seal around and out of the conduit and MH/HH wall.

4.6.2.31. Unused facility conduits shall be capped.

4.6.2.32. Max-cell fabric mesh inner-duct with pull rope or tape (rated at 1200lb. pull strength) shall be used in all conduits. At a minimum, install two each of 3-cell inner-duct. Each fabric inner-duct cell should be able to support up to a 1.5” diameter cable.

4.6.2.33. Drawings indicating MHDS placement shall include: maintenance hole interior layout with cable racking (i.e. butterfly drawings) and global positioning system (GPS) coordinates.

4.6.2.34. All cable splices with metallic conductors or a shield shall be bonded to the MH ground.

4.7. Communications Grounding:

4.7.1. Proper grounding, bonding, and shielding of electrical equipment and facilities are required for C4I system electrical devices to operate safely. In addition, it shall help with the reduction of electromagnetic interference (EMI) and system noise as well as provide protective measures for equipment and personnel.

4.7.2. Reference the latest version of the following documents:

4.7.2.1. AFMAN 32-1065 – Grounding & Electrical Systems.

4.7.2.2. ANSI/TIA-607 – Generic Telecommunications Bonding and Grounding (Earthling) for Customer

Premises.

4.7.2.3. BICSI Information Technology Systems Installation Methods Manual (ITSIMM), Chapter 8

4.7.2.4. BICSI Outside Plant Design Reference Manual (OSPDRM), Chapter 6

4.7.2.5. BICSI Telecommunications Distribution Methods Manual (TDMM), Chapter 8

4.7.2.6. NFPA 70 – National Electric Code

4.7.2.7. NFPA 780 – Standard for the Installation of Lightning Protection Systems.

4.7.2.8. UFC 3-580-01 – Telecommunications Interior Infrastructure Planning and Design, paragraph 2-9

4.7.2.9. UFC 3-520-01 – Interior Electrical Systems, paragraph 3-11

4.7.2.10. UFC 3-550-01 – Exterior Electrical Power Distribution

4.7.2.11. UFC 3-575-01 – Lightning and Static Electricity Protection Systems

4.7.3. Grounding…