Atch__34_UHHZ_150376_Cnst_Inst_C17_Fabric_Shelter_at_N_27_Statement_of_Work_03NOV2016.pdf

UHHZ 150376 Cnst/Inst C17 Fabric Shelter at N-27 03NOV2016

CEMACC IDIQ STATEMENT OF WORK

PROJECT DESCRIPTION FOR

UHHZ 150376, Construct/Install C17 Fabric Shelter at N-27

INDEX

1. General

2. Description of Work

3. Continued Occupancy of Surrounding Aircraft Docks

4. Detailed Technical Considerations

5. Documentation Requirements

6. Administrative Information

1. GENERAL:

A. This Task Order (TO) is No. ____ under the CEMACC Indefinite Delivery Indefinite Quantity (IDIQ) project referenced above.

B. The following critical items are contained in the Basic CEMACC IDIQ SOW:

1. RAFB Access

2. Proposal Evaluation Criteria

3. Design Documents and Requirements

4. Codes and Standards

2. DESCRIPTION OF WORK:

A. Existing Conditions:

I. Maintenance and Repair of C-17 aircraft on the N27 portion of the Depot Maintenance Ramp requires the use of Ground Support Equipment (GSE), also known as Aerospace Ground Equipment (AGE), to provide power and compressed air to support aircraft mechanics. Also, there are no utilities, such as communication lines and water, available there now.

II. Demolition: No demolition is expected for installation of Tension Fabric Structure

(TFS).

B. New Work:

I. Install Tension Fabric Structure (TFS) to support maintenance activities for C-17 aircraft at N-27. Basic Wind Speed Uplift requirements shall meet UFC 3-110-03 Roofing with Change 1 and as a minimum 120 mph wind speed. Anchor attachments/points will be into existing concrete airfield paving which is approximately (16”) sixteen inches thick.

Tension Fabric Structure (TFS) is a multi-sided structure with dimensions of 20’-5” at nose end of structure (this side to allow tug traffic to exit through opening), two sides with dimensions of 126’-6 ¾” with a 20’-0” wide by 7’-0” high opening (no fabric or framing within this opening), two sides with dimensions of 37’-7 ¾” with no openings, and one side with dimension of 199’-6” (no fabric or framing in this side as aircraft will enter and exit through this opening) and a side wall height of 23’-4 1/16”, and an overall height of 49’-11 1/8” to top of structure.

II. Provide (20) twenty LED light fixtures 277V with safety chains on each fixture, 30A circuit breaker in existing switchboard adjacent to utility pit, associated wiring, switches, electrical lighting panel, and 1 5/8” x 1 5/8” 12 gage galvanized slotted metal channels, post bases, fittings to mount electrical panel to existing airfield concrete pavement. LED lights will be mounted to TFS frames and connected to new electrical panel. Lights will be required to meet Base Facility Standards for illumination.

III. For the initial CEMACC submittal package, provide a complete package to include AF Forms 3052 showing all Divisions with associated major component line items, Form 3064 Progress Schedule completely filled out for all construction activities through contract close out, a complete Schedule of Values showing all Specification Divisions with accompanying line items, and Form 66 Submittal Register showing all submittals required for project through contract close out.

AFTER CONTRACT AWARD

IV. Provide a complete Fabric Shelter, lighting shop drawing package on AF Form 3000.

3. CONTINUED OCCUPANCY OF SURROUNDING AIRCRAFT DOCKS:

A. The existing surrounding aircraft fabric shelters around N-27 will continue in operation the entire duration while this project is being constructed. This area is very congested and aircraft movement takes priority.

B. Give special consideration to construction phasing and impact on user/aircraft movement activities, as it pertains to aircraft movement in adjacent dock spaces, and utility outages.

C. This project is located on the airfield ramp and will require Flightline driver’s training classes and Flightline badge. AF Form 2586 will have to be filled out and submitted to 78th Civil Engineer Project Manager for processing through Aircraft Operations personnel.

4. DETAILED TECHNICAL CONSIDERATIONS:

A. The design shall conform to the Base Facility Standards and the Unified Facility Criteria (UFC). In addition to the general project description above, follow the below detailed requirements for the various disciplines.

B. Architectural Considerations:

1. Contractor shall verify layout of new Fabric Shelter on the existing concrete airfield pavement before ordering the Fabric Shelter. Layout showing Fabric Shelter orientation shall be done accurately and to scale utilizing a chalk outline. Contact 78th CE Project Manager after layout is complete and before ordering.

C. Civil Considerations: OMITTED FOR THIS PARTICULAR PROJECT

D. Structural Considerations:

1. Provide all structural design calculation required in the basic contract for the shop drawing submittal. The structural calculations shall include the following items:

a. Dead Load Break down

b. Live Load breakdown and calculation

c. Wind Load breakdown and calculation

d. Connections details for new Tension Fabric Structure to existing concrete pavement, etc.

e. Existing concrete airfield pavement is approximately 16” thick.

f. See Specification Section 13121 Frame Supported Membrane Structure below for

Fabric Shelter requirements.

E. Mechanical Considerations: OMITTED FOR THIS PARTICULAR PROJECT

F. Electrical Considerations:

1. Specific considerations for this project include, but are not limited to the following:

a. Make electrical connections for new electrical panel in existing utility pit located adjacent to N-27 to the North and core drill new holes into existing concrete airfield pavement for new electrical metal conduit to accommodate new electrical metal conduit. Remove existing concrete airfield pavement adjacent to new electrical lighting panel to allow directional boring into existing utility pit.

b. See Electrical Specifications Sections 16011 General Electrical; 16100 Wiring Methods; 16100 Wiring Methods; 16195 Identification; 16312 Low Voltage Switchgear and Secondary Unit Substations; 16470 Panelboards; 16510 Lighting, Interior; 16672 Transient Voltage Surge Suppression (TVSS) below for Electrical requirements.

G. Environmental Considerations: OMITTED FOR THIS PARTICULAR PROJECT

5. DOCUMENTATION REQUIREMENTS: Follow the Procedural Guide strictly, except as listed below.

A. Shop drawings submittals of Tension Fabric Structure, mounting attachments, structural calculations, light fixtures, mounting attachment to TFS frame, electrical panel, breakers, conduit, galvanized slotted metal channels, post bases, and fittings.

6. ADMINISTRATIVE INFORMATION

A. Contract Administration Authority

1. Authority: The Contracting Officer in Base Operational Contracting, AFSC/PZIOC, is responsible for the administration of this contract. The Contracting Officer has designated the Office of the 78th Civil Engineer as the design and technical surveillance representative for this contract.

13121 FRAME SUPPORTED MEMBRANE STRUCTURE

PART 1 – GENERAL

1.1 RELATED DOCUMENTS

A. CEMACC IDIQ Contract, including General and Supplementary Conditions, Robins Base Facility Standards, and RAFB Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

This Section specifies the furnishing and installation of a structural frame supported membrane fabric covered roof and wall structure of the type described herein.

This system includes the installation of structural framing and fabric membrane at roof and at walls to the extent defined in the Statement of Work.

1.3 CODES, REFERENCES AND STANDARDS

A. The following Codes, References and Standards listed below will be referred to thereafter by basic letter designation only. They form a part of this specification to the extent referenced thereto use latest editions.

PROPOSED LAYOUT OF TENSION FABRIC STRUCTURE AT N-27

NOT TO SCALE

1. Robins AFB Base Facility Standards, current edition

2. 2012 International Building Code with 2014 Georgia amendments

3. Unified Facilities Criteria (www.wbdg.org)

a. UFC 1-200-01 dated 01July2013 with Change 2 dated 01Nov2014

b. UFC 3-301-01 dated 01June2013 with Change 1 dated 15May2014

c. UFC 3-310-01

d. UFC 3-310-04 dated 01June2013

4. American Institute of Steel Construction (AISC):

a. M016 Manual of Steel Construction

b. S326 Design, Fabrication and Erection of Structural Steel Buildings

c. S329 Structural Joints Using ASTM A325 or A490

d. AISC 325-11 Steel Construction Manual, 14th edition

e. AISC 341-10 Seismic Provisions for Structural Buildings

f. AISC 360-10 Specifications for Structural Steel Buildings

5. American Iron and Steel Institute (AISI):

a. SG 503 Manual of Steel Construction, Ninth Edition

b. AISI S100-07 North American Spec for the Design of Cold- Formed Steel

Structural Members, including 2010 Supplement

6. American Society for Testing and Materials (ASTM):

a. A36 Structural Steel

b. A 123 Standard Specification for Zinc (Hot Dip Galvanized) Coatings on Iron and Steel Products

c. A 307 Carbon Steel Bolts and Studs, 60,000 psi Tensile Strength

d. A325 High-Strength Bolts for Structural Steel Joint

e. A 500 Standard Specifications for Cold Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

f. A 563 Rev Carbon and Alloy Steel Nuts

g. A 687 High-Strength Non-Headed Steel Bolts and Studs

7. American Society of Civil Engineers (ASCE):

a. ASCE 7 current edition Minimum Design Loads for Building and Other Structures

8. American Welding Society (AWS):

a. D1.1 Structural Welding Code – Steel

9. National Fire Protection Association (NFPA):

http://www.wbdg.org/

a. 701 Standard Methods of Fire Tests for Flame Resistant Textiles and Films

1.3 GENERAL REQUIREMENTS

A. Scope:

1. This specification covers the design, manufacture, shipping and handling and erection of a Relocatable, prefabricated tension membrane structure.

1.4 The structure membrane shall be tensioned over the framework. The structure shall be rectangular in shape. The side and gable walls of the structure shall be vertical. The interior of the structure below the main arch shall be clear and free of any structural members and shall provide unobstructed floor space

1. The structure shall also include accessories and items required and necessary for the scope and intended use and as herein specified. These may include:

a. Personnel and Aircraft Tug access.

b. Electrical systems including interior lighting.

2. DESIGN AND DIMENSION

3. Exterior Dimension: The structure shall have the following minimum exterior

Dimensions:

4. Width: 199’-6” at open end for C-17 entry and exit, 20’-5” at nose end for Tug to pass through

5. Length: 37’-7 ¾” on (2) two sides, and 126’-6 ¾” on (2) two sides with a 20’-0” wide by 7’-0” high opening (no fabric or framing within this opening

6. Wall Height: 23’-4 1/16”

7. Peak Height: 49’-11 1/8”

8. Design Requirements – Structural Frame 10.

9. Roof and Wall Surfaces: To provide for maximum compatibility with standard openings, and other accessory and cladding systems, the structure shall be designed such that the roof and gable side wall surfaces form flat planes.

13. Purlin Spacing: To provide for structural stability, to minimize unsupported areas of membrane fabric in the roof and to provide for installation of accessory items, the main structural trusses shall be laterally braced by tubular purlins. (See Part 1.8, C Para. 7).

14. Wind and Frame Bracing: The structure shall be appropriately stabilized with main wind bracing cable or rod assemblies as well as any required secondary node restraint assemblies so as to efficiently transfer wind, snow and seismic induced stresses to the foundation/anchoring system. Cable diameters for main wind bracing shall be a minimum of 3/8” diameter for structures under 130’ span. For structures between 130’ and 200’ span, cable diameters should be a minimum of ½” and for structures over 200’ span, cable diameters should be a minimum of 5/8”. The end bays of the structure shall be designed to be “X” braced early during installation to allow for permanent stability of the frame as early as practicable during the installation process. The structural frame shall be provided with engineered attachment clips or lugs for all main cable assemblies.

These clips shall be a minimum 3/8” thick A36 steel and shall be designed to properly transfer wind bracing forces within the structural frame.

15. Connecting Joints: Connections for structural elements and PVC membrane shall be properly designed with required safety factors so as to transfer all the maximum forces present in a given joint. For spans less than or equal to 90’, a minimum of two 5/8” diameter A325 bolts or one ¾” diameter A325 bolts shall be used at each main truss chord joint. For spans greater than 90’ and less than or equal to 170’, a minimum of two ¾” diameter A325 bolts shall be used at each main truss chord joint. For spans greater than 170’, a minimum of two 1” diameter A325 bolts shall be used at each main truss chord joint. Where sleeve joints are used, the material shall be appropriately sized and reinforced so as to avoid sheer failure of the material. Primary axial steel connections shall also be made with bolts of at least 5/8” diameter grade A325. Secondary purlins shall be secured by no less than ½” diameter bolts.

16. Shipping: The main structural trusses shall be two dimensional, planar trusses which nest tightly together in order to minimize shipping and storage volume.

B. Design Requirements – PVC Coated Membrane Cladding System

1. Continuous, Weather Tight Membrane: The structure membrane shall form a continuous, uninterrupted weather tight shell over the framework. In order to provide for a good finished appearance and to insure weather tightness, the wall PVC cladding shall be manufactured so as to be connected in one piece to the adjacent side walls and roof cladding without the use of catenary cables.

2. Cladding Section Joints: Adjacent PVC cladding sections shall either lace together with a minimum ¼” white polyester rope or be provided with a mechanical tensioning system so as to maintain PVC tension along the length of the building. Proper gaps shall be maintained between sections so as to allow sufficient distance to enable full tensioning of the material.

3. Overlap Seams: The membrane system shall be designed such that the PVC cladding panels can be supplied with optional overlap joints to allow adjacent panels to be field heat sealed together.

4. Base Tensioning System: The PVC cladding will be provided with a mechanical tensioning system that allows the PVC to be fully tensioned around the structure perimeter. The system will be designed such that the membrane can be tightly and neatly secured over the structural frame and such that the system has remaining range of adjustment.

5. Membrane Seal at Openings and Base: The structure supplier will provide all materials and methods necessary to fully tension and seal the membrane material around all openings as well as around the structure perimeter below the main tensioning system. This seal shall provide a neat finished appearance and eliminate any loose PVC cladding that could otherwise be damaged by flapping or abrasion.

When a PVC base skirt is required, this shall be supplied separately from the main PVC cladding and attached at the base perimeter so as to allow a reasonable seal against air and water intrusion.

6. Design Safety Factor: The PVC membrane shall be designed to allow a factor of safety at design loads of at least three (3) times the theoretical design strength of the PVC material.

7. The structure membrane shall not be designed to function as a structural member such that, should any damage to or penetrations of the membrane occur, the integrity of the structural framework shall not be affected.

1.6 OPERATION AND USE

A. The structure shall be designed to provide a minimum of 15 year operational use period, which shall include, if necessary, one installation/disassembly cycle per year with appropriate inspection and maintenance.

B. The structure shall be capable of being assembled, operated and dismantled in all ambient temperatures between 0°F and 100°F.

C. The fabric material shall be designed to withstand a maximum temperature of 150°F when stored in packing containers.

D. The structure shall be designed such that a crew of five persons working with a trained supervisor can unpack and assemble the basic structure at a rate of at least 2,000 square feet of surface area per day (35 square feet of structure surface area per person hour) on a prepared surface. Disassembly shall be accomplished at a rate of at least 2,500 square feet of surface area per day by a similar crew.

E. The structure shall be capable of being erected upon existing airfield concrete pavement and shall also be capable of accepting differential settlement up to 2- 1/2% between truss positions.

1.7 ENGINEERING DESIGN CRITERIA

A. The structure shall be designed in accordance with appropriate building code standards using methodology from ASCE 7-current edition. Primary and secondary framing shall comply with current issues of AISC, AISI, NEMA and ASTM specifications. Structural members shall be designed using Allowable Stress Design (ASD) or Load Resistance Factored Design (LRFD) for the design loads given below. Appropriate safety factors to yield and ultimate shall be maintained.

Wind load factors and coefficients used in design of structural members must be in accordance with ASCE 7-current edition guidelines.

1. Roof Loads: The structure shall be designed based upon a ground snow load of

5 pounds per square foot (psf) plus a 3 psf collateral load. At minimum, the structure shall be capable of supporting a roof live load of 20 pounds per square foot, and any probably arrangement of loading resulting in the highest stress in the members.

2. Wind Loads: The structure shall be capable of withstanding 3 second gusts wind loads from any direction of 120 miles per hour. The structure shall be designed using exposure category “C” for determining design wind pressure of the structure. The methodology is to be taken from ASCE 7-current edition.

3. Rainfall: The structure shall be capable of withstanding the effects of rainfall up to 4 inches per hour for at least 2 hours.

4. Deflection: The maximum allowable deflection of any point on the steel framework shall be no more than 1/180 of the clear span width of the structure when subjected to the design loads described herein.

5. Design Loads: The design shall be per Robins AFB Base Facility Standards.

1.8 MATERIALS

All materials used in the structure shall be new, without defects and free of repairs. The quality of the materials used shall be such that the structure is in conformance with the performance requirements specified herein.

A. Cladding Membrane: The structure shall be clad with a PVC coated polyester fabric manufactured by an approved and reputable supplier with demonstrated long term performance. Laminated materials are not acceptable for use on the outer weather membrane. The PVC coated membrane fabric shall be waterproof and free from defects.

All roofs, end walls and connecting sections shall be weather tight. The material will be selected from the manufacturer’s standard colors for the side walls and will be translucent white on the roof.

The material must be UV stabilized and flame retardant, must carry a minimum five year manufacturer’s warranty and must have life expectancy of 15 to 20 years. The minimum fabric specification is as follows:

1. Coated Weight: 28 +/- 2 oz/sy (Method 5401)

2. Base Fabric Weight: 6.9 oz/sy

3. Finished Thickness: 30 mils

4. Grab Tensile Strength, lbs: 690/620 (ASTM D751)

5. Tongue Tear: 180/180 lbs/in (ASTM D2261)

6. Cold Crack Resistance: -40°F (ASTM D2136)

7. Flame Resistance: 2 sec flameout (NFPA 701)

8. Flame Spread: 25 or less (ASTM E84)

Acceptable membrane suppliers must demonstrate a minimum of fifteen years successful field experience with provision of PVC coated polyester cladding in use on structures of the type contemplated in this specification.

B. Metal: All components of the structural framework shall be fabricated from steel. The primary material used in the structural arches shall be steel tubing which shall be to ASTM A500 specification with a minimum yield stress of 50,000 psi. Main truss chord members shall be no less than 2 3/8” outside diameter 11 gauge (0.120” thick) tubing for structures under 70’ clear span, no less than 3” diameter 11 gauge for structures between 70’ and 130’ span, no less than 3 ½” diameter for structures between 130’ and 170’ and at least 4” minimum diameter for structures greater than 170’ free span. No main span tubes or any compression member in the structural frame shall be less than 0.095” thickness.

Flat bar and other shapes shall, at a minimum, be to A36 or equal.

1. Corrosion Protection: Welded steel work shall be hot dip galvanized to ASTM

A123 after manufacture to provided corrosion protection. All other main steel components shall be galvanized to ASTM G-90 or equal.

2. Painting: Painting of steel components shall only be utilized if necessary for field repairs and shall not be employed as a factory finish. Should field repair be necessary, a zinc rich field coat shall be used.

C. Hardware

1. Bolts: Bolts subject to extreme stress and wear shall be structural bolts of grade A325. All other structural fasteners for interior use shall be zinc plated, hot dip galvanized or stainless steel. All bolts shall be installed and tightened per AISC Steel Manual Requirements. Those subject to removal or adjustment shall not be swaged, peened, staked or otherwise installed.

2. Anchor Bolts: Anchor bolts shall conform to ASTM A36, A307 or F1554.

3. Membrane Tensioning Hardware: The fabric membrane shall be tensioned with load rated hardware which is hot dip galvanized so as to prevent corrosion. Tensioning hardware shall allow for full and free rotation at the foundation connection so as to avoid fatigue failure of threaded assemblies.

4. Cable Assemblies: Main wind bracing cable assemblies shall be manufactured to the required length and press swaged with stainless steel sleeves. The cables shall be properly sized with appropriate safety factors.

5. Other Fasteners: Non-structural fasteners such as wood screws, tek screws, etc. shall be of standard commercial quality.

6. Exterior Trim: Battens or washers used for final seal of the PVC membrane shall be either hot dip galvanized, stainless steel for aluminum to resist corrosion. Fasteners used for exterior trim work shall be stainless steel, zinc plated or hot dip galvanized.

7. Purlin Spacing: Minimum purlin spacing shall be equal to or less than 7’ for buildings with 170’ free span or less and equal to or less than 12’ for free spans greater than 170’.

D. Welding: Welding shall be employed only when specified in the original design. Welding shall be performed in accordance with AWS D1.1 by welders qualified and tested to an acceptable standard. Welded joints shall be properly sized and placed. Welds shall have thorough penetration, good fusion and shall be free from scabs, blisters, abnormal pocket marks, cracks, voids, scab inclusion, and other defects.

E. Workmanship: The workmanship of all materials and components of the structure shall be of commercial standard quality commensurate with the functional requirements of the item. The basis for commercial quality standards are:

Rubb Building Systems of Sanford, Maine Fabritex Inc. of Hartwell Georgia Big Top Manufacturing of Perry Florida

F. Manufacturer: The structure supplier shall be a reputable manufacturer; shall have a minimum of ten years direct experience in the design, manufacture and installation of structures of the type specified herein; shall operate according to a comprehensive quality system and shall provide documentary evidence as follows:

1. Provide three references with structures in use for at least five years which exceed one hundred (100) foot clear span and which enclose in excess of 10,000 square feet.

2. Provide information of company experience and engineering and installation capability which meet the above experience requirements.

3. Provide evidence of ISO 9000 certification or comparable quality certification.

G. Piece Marking and Identification: All individual parts or bundles and packages of identical parts are to be clearly marked or for identification or otherwise identified by clear installation procedures. Bolts and fasteners shall be packaged according to type, size and length. Loose nuts and washers shall be packaged according to size and type.

The shipping documents shall list showing the description, quantity and piece mark of the various parts, components and elements.

H. Material Delivery: The building system materials shall be delivered to the project site during normal working hours on weekdays. Installation contractor will provide adequate workmen and equipment to promptly unload, inspect and accept material delivery.

I. Handling: The installation contractor shall be responsible for unloading, field storage, protection and transfer to the work area of all materials and equipment required to perform work. At no time shall materials be dropped, thrown or dragged over the transport equipment or the ground. Damage to any piece under its own superimposed weight shall be cause for repair or replacement. Material shall be protected from standing water.

J. Short, Damaged or Excess Materials: Installation contractor shall inspect, count and verify quantities based on the shipping documents.

1.9 FOUNDATION DESIGN

A. The Contractor shall provide shop drawings for the following items: calculations, foundation/anchoring requirements, anchor bolt plan, truss and leg truss line location and reactions. The anchor bolt plan shall show the anchor bolt(s), material, number, size, location, embedment, projection and spacing. Design of the foundation and/or anchoring systems for the building shall be based on the maximum column/truss reactions.

1.10 ACCESSORY SYSTEMS

A. Lighting – (20) twenty 400W single phase 120V metal halide lights, associated wiring, switches, electrical lighting panel, and 1 5/8” x 1 5/8” 12 gage galvanized slotted metal channels, post bases, fittings to mount electrical panel to existing airfield concrete pavement. Metal halide lights will be mounted to TFS frames and connected to new electrical panel. New electrical panel will connect to existing airfield utility pit adjacent to N-27. Provide ¼” thick (3) sides galvanized checkered plate cover over new conduit connecting new electrical panel to existing utility pit.

B. Core Drill – Core drill existing concrete airfield pavement for installation of new metal electrical conduit from new electrical lighting panel to existing utility pit adjacent to N-27.

16011 – GENERAL ELECTRICAL

PART 1 - GENERAL

1.1 APPLICABLE PUBLICATIONS: The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

A. Institute of Electrical and Electronics Engineers (IEEE) Publication:

100 - 1996 Standard Dictionary of Electrical and Electronics Terms

C2 - 2003 National Electrical Safety Code (Also adopted by American National Standards Institute

- ANSI)

B. National Electrical Manufacturers Association (NEMA) Publication:

ICS 6 - 1993 Enclosures for Industrial Controls and Systems

C. National Fire Protection Association (NFPA) Publication: 70 - 2008 National Electrical Code

1.2 APPLICATION: This section applies to all sections of Division 16, "Electrical," of this project, except as specified otherwise in each individual section.

1.3 SUBMITTALS:

A. General: Provide the following submittals in accordance with instructions found in Section 01300, Submittals and Contractor Furnished Items. The contractor may submit manufacturer’s data in lieu of the required certificate of compliance as desired. The Government requires manufacturer’s data if an “X” appears under the “Mftr Data Required” column.

B. Material Submittals:

Mftr Certificate

Data of Exceptions Inspector Para # Description Req’d Compliance Taken Check Mark

3.02 D System Grounding Plan X

C. Other Submittals:

Para # Description Date Required Check Mark Inspector

1.04 A. Electrical License Before NTP

1.04 B. Warranties Before Prefinal

3.02 B. System Ground Adjustments Before Final

3.04 A General System Test By Perfinal

3.04 B Grounding System Test By Prefinal

3.04 C.2 Test Firm Qualifications NTP + 14 Days

3.04 C.4 Proposed Test Form NTP + 14 Days

3.04 C.4 Test Reports Before Prefinal

3.05 System Analysis Before Prefinal

1.4 GENERAL ELECTRICAL SUBMITTAL REQUIREMENTS:

A. Electrical License: Provide proof of contractor and employee licensing.

B. Warranties: Transfer to the Government all manufacturers' warranties when their standard on any equipment or service is greater than 1 year. Provide by Prefinal inspection.

1.5 OPERATION AND MAINTENANCE MANUAL: Submit as required for systems and equipment indicated in the technical sections. Furnish four copies, bound in hardback binders or an approved equivalent. Furnish one complete manual prior to performance of systems or equipment tests, and furnish the remaining manuals prior to contract completion. Inscribe the following identification on the cover: the words "OPERATION AND MAINTENANCE MANUAL," the name and location of the system, equipment, building, name of contractor, and contract number. Include in the manual the names, addresses, and telephone numbers of each subcontractor installing the system or equipment and the local representatives for the system or equipment. Include a table of contents and assemble the manual to conform to the table of contents, with the tab sheets placed before instructions covering the subject. The instructions shall be legible and easily read, with large sheets of drawings folded in. The manual shall include:

A. Internal and interconnecting wiring and control diagrams with data to explain detailed operation and control of the system or equipment.

B. A control sequence describing startup, operation, and shutdown.

C. Description of the function of each principal item of equipment.

D. Installation and maintenance instructions.

E. Safety precautions.

F. Diagrams and illustrations.

G. Testing methods.

H. Performance data.

I. Lubrication schedule including type, grade, temperature range, and frequency.

J. Parts list. The list shall indicate sources of supply, recommended spare parts, and name of servicing organization.

K. Appendix: List qualified permanent servicing organizations for support of the equipment, including addresses and certified qualifications.

1.06 DEFINITION OF ELECTRICAL TERMS: Unless otherwise specified or indicated, electrical terms used in these specifications, and on the drawings, shall be as defined in IEEE Standard No. 100.

Otherwise, use these terms, definitions, and abbreviations for this project:

A. Identified: Recognizable as suitable for specific purpose, function, use, environment, or application.

B. Integrated Equipment Short Circuit Rating (IER): The least rating of devices installed in equipment. Series ratings shall be tested and labeled by UL.

C. Isolated: Not readily accessible to persons unless special means for access are used.

D. Labeled: (As applies to manufacturer and testing labels.) Equipment or materials to which has been attached a label, symbol, or other identifying mark of an organization acceptable to the authority having jurisdiction and concerned with product evaluation, that maintains periodic inspection of production of labeled equipment or materials and by whose labeling the manufacturer indicates compliance with appropriate standards or performance in a specified manner.

E. Labeled: (As applies to contractor furnished labels.) Equipment shall have attached specific labels and of the types required. These labels are required in addition to any manufacturer or testing labels required.

F. Special Permission: The Base Civil Engineer is the "authority having jurisdiction" and has the ability to give, through the Contracting Officer, special permission to override and/or determine requirements as specified in the NEC.

1.7 DELIVERY AND STORAGE: Handle, store, and protect equipment and materials in accordance with the manufacturer's recommendations and with the requirements of NFPA 70B, Appendix I, titled "Equipment Storage and Maintenance during Construction." Replace damaged or defective items with new items.

1.8 QUALITY ASSURANCE:

A. Material and Equipment Qualifications: Provide materials and equipment that are products of manufacturers regularly engaged in the production of such products that are of equal material, design, and workmanship. Products shall have been in satisfactory commercial or industrial use for 2 years prior to bid opening. The 2-year period shall include applications of equipment and materials under similar circumstances and of similar size. The product shall have been on sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 2-year period.

B. Service Support: The equipment items shall be supported by service organizations which are reasonably convenient to the equipment installation in order to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of the contract. 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.

C. Modification of References: In each of the publications referred to herein, consider the advisory provisions to be mandatory, as though the word, "shall" had been substituted for "should" wherever it appears. Interpret references in these publications to the "authority having jurisdiction," or words of similar meaning, to mean the Contracting Officer.

1.9 INSTRUCTION TO GOVERNMENT PERSONNEL: Where specified in the technical sections, furnish the services of competent instructors to give full instruction to designated Government personnel in the adjustment, operation, and maintenance of the specified systems and equipment, including pertinent safety requirements as required. Instructors shall be thoroughly familiar with all parts of the installation and shall be trained in operating theory as well as practical operation and maintenance work. Instruction shall be given during the first regular workweek after the equipment or system has been accepted and turned over to the Government for regular operation. The number of man-days (8 hours per day) of instruction furnished shall be as specified in the individual section.

PART 2 - PRODUCTS:

2.1 Minimum Requirements: All materials, equipment, and devices shall, as a minimum, meet the requirements of UL where UL standards are established for those items, and the requirements of

NFPA 70.

2.2 Age: All items shall be new unless specified or indicated otherwise.

2.3 Capacities: Capacities of equipment and material shall not be less than indicated, except generators shall be sized as close as possible to the indicated rating.

2.4 Arc Flash Marking: All panels or boxes that contain circuit-breaking or circuit-closing devices shall be marked per NEC 110.16 with a note similar to the following:

ARC FLASH & SHOCK HAZARD APPROPRIATE PPE REQUIRED

PART 3 - EXECUTION:

3.1 GENERAL INSTALLATION REQUIREMENTS:

A. Conformance: Electrical installations shall conform to ANSI C2, NFPA 70, and requirements specified herein. When the Specifications and Drawings differ from the ANSI C2 or NFPA 70, follow the more stringent. Adhere strictly to statements and instructions appearing on equipment and in accompanying literature.

B. Coordination: The Drawings indicate the extent, general location, and arrangement of equipment, conduit, and wiring. Study building plans and details so that the outlets and equipment will be properly located and readily accessible. Locate lighting fixtures, equipment, and outlets symmetrically according to the room arrangement to avoid interference with mechanical or structural features.

3.2 SYSTEM GROUNDING:

A. Soil Resistivity: The median value runs in the 25,000 ohm-cm range for soil near buildings at Robins AFB. This would normally result in a single ground rod having a resistance of nearly 100 ohms. To meet the NEC requirement of 25 ohms or less a tripod set of ground rods 20 feet apart with Thermit- welded bare copper 4/0 wire between them is usually sufficient, provided the closest ground rod is at least 10 feet from the facility.

B. Buildings under 4,000 SF roof size and buildings without admin space or any offices: When a bldg or structure meets this description after the work of this project, the system ground may meet the NEC requirement of 25 ohms or less.

C. Buildings of 4,000 SF and larger roof size with admin space or any offices: Provide maximum of 10 ohms of resistance to hard earth ground in the system ground connected to the electrical service entrance.

D. Provide a submittal for approval describing the method of grounding, whether tripod, counterpoise, chemical ground or other means.

E. If final installation does not meet the 10 or 25-ohm maximum requirement, provide additional means satisfactory to the Technical Representative of the Contracting Officer (TRCO) to achieve being below the required maximum value.

3.3 PAINTING OF EQUIPMENT:

A. Factory Applied: Electrical equipment shall have factory-applied painting systems that shall, as a minimum, meet the requirements of NEMA ICS 6 corrosion-resistance test. Outer finish for all transformers and switches located exterior to buildings shall be RAFB, #48 Brown.

B. Field Applied: Paint electrical equipment as required to match finish or to meet safety criteria.

3.4 FIELD TESTS AND INSPECTIONS:

A. General: Demonstrate that all circuits and devices are in good operating condition. Tests shall be such that each item of control equipment will function not less than five times.

B. Grounding System: Perform resistance test by Prefinal Inspection of the grounding system to ensure it meets the requirements of paragraph 3.02 above. Make necessary field repairs and adjustments as required above.

C. Manufacturer or Independent Testing Firm Tests: (Omitted.) Retain a representative of the manufacturer or a qualified independent testing firm to provide inspections, test, and evaluations to determine that the equipment designated herein is installed and adjusted for successful energization and operation.

1. The manufacturer or testing firm shall provide a supervising engineering representative to interface with the installing Contractor and the Government. Testing technicians shall be provided as required to do the work under approved schedules. The manufacturer does not have to submit their team for approval.

2. Qualifications of the Independent Testing Firm: The Contracting Officer must approve the testing firm proposed for use, and the firm shall meet the following requirements:

a. The firm shall be a nationally recognized independent electrical testing organization and may be a member of NETA.

b. The testing firm shall not be a subsidiary division or department of the installing

Contractor.

c. The testing firm shall have at least one full time registered professional electrical engineer. Additional staffing must include two or more technicians with a minimum of 4,000 hours experience in electrical testing.

d. The testing firm shall provide a list of their test equipment, including manufacturer, model, serial number, and year.

3. Witnessing of Tests: The Contracting Officer or his authorized representatives shall witness all tests, settings, and calibrations as they are being conducted. Provide written notice at least 7 days in advance of a proposed test, and do not begin until the Contracting Officer returns written approval.

4. Test Reports: Submit a proposed test form to the Contracting officer for approval. Within thirty days after completion of all tests, submit to the Contracting Officer four bound copies of all test reports. The following procedures shall also be accomplished:

a. The manufacturer or testing firm shall establish a complete list of all tests to be performed. Each test shall be assigned a number; this number shall remain the same for that item through all interim tests and the final acceptable test. The list shall clearly indicate the items tested, dates tested, results, and further action required. The list shall be continually updated and a current copy provided with each submittal package.

b. Each test report shall indicate the acceptable limits and state whether results are

"acceptable" or "not acceptable."

5. Faulty Equipment: Any system component or workmanship that is found defective shall be reported to the Contracting Officer, in writing, on the day of occurrence. Report the nature of the problem and the recommended corrective action. All persons witnessing the test shall sign reports. Perform all corrective actions at no additional cost to the Government. Perform additional tests until satisfactory results are obtained.

6. Labeling: All equipment tested shall be properly affixed with calibration labels. Labels shall include the name of the testing organization, date, job number, name of testing technicians, and recommended frequency of maintenance tests.

7. Approval for Energizing, De-energizing or Tying-in a System: Equipment or circuitry shall not be energized, de-energized, or tied-in to a system until the Contracting Officer grants approval.

8. The manufacturer or testing firm shall provide the following services:

a. Switchgear Test

b. Unit Substation Test

3.5 SYSTEM ANALYSIS:

A. General:

1. Provide a combined short-circuit and time-current analysis of the facility for approval, including recommendations to correct problems discovered.

2. Resubmit report if settings are changed during approval procedures.

3. Make changes in equipment to account for problems encountered and verified by approval procedures at no additional cost to the Government.

B. Short-Circuit Analysis:

1. Use the procedures listed in ANSI/IEEE Standard 242-1986, the "Buff Book."

2. Assume 400,000 KVA available short-circuit available power at the terminals of the facility transformer.

3. Electronically compute currents available down to below the lowest standard AIC ratings of the equipment at each voltage.

4. Include the emergency panels and switches in the analysis.

5. Provide results on a single-line drawing of the system.

C. Coordination Analysis:

1. Use the short-circuit values obtained above.

2. Start analysis from the nearest upstream device from the first device provided by the contract, such as a transformer primary fuse. Request this info from the base after award.

3. Extend analysis down to each adjustable circuit breaker and selectable fuse.

4. Provide log-log plots of the devices showing recommended settings.

16100 - WIRING METHODS

1.1 GENERAL: Provide copper conductors installed in raceways (wireways and conduits in various categories) and other wiring methods specified. Substitute wiring methods are allowed only as approved by the Contracting Officer.

A. The following wiring methods shall not be used: Armored Cable (Type AC), Flat Cable

Assemblies (Type FC), Flat conductor Cable (Type FCC), Integrated Gas Spacer Cable (Type IGS), Medium Voltage Cable (Type MV), Metal-Clad Cable (Type MC), Mineral-Insulated, Metal-Sheathed Cable (Type MI), Nonmetallic-Sheathed Cable (Types NM, NMC, and NMS) {except for residential use}, Power and Control Tray Cable (Type TC) {unless specifically called for in Drawings or Specifications}, Service-Entrance Cable (Types SE and USE), Underground Feeder and Branch-Circuit Cable (Type UF), Rigid Nonmetallic Conduit (Type RNC) {unless specifically called for in Drawings or Specifications}, Nonmetallic Underground conduit with Conductors (Type NUCC), Flexible Metallic Tubing (Type FMT), Electrical Nonmetallic tubing (Type ENT), and similar wiring methods with various manufacturer’s name brands.

B. Wiring devices shall be as indicated.

C. Boxes: Provide in the raceway system wherever required for pulling wires, making connections, and mounting of devices or fixtures.

1.2 OMITTED:

A. Material Submittals: The contractor may submit manufacturer’s data in lieu of the required certificate of compliance if he desires. The Government requires manufacturer’s data if an “X” appears under the “Mfg. Data Required” column.

Mfg. Certificate

Data of Exceptions Inspector Para # Description Req’d Compliance Taken Checklist

1.03. B Raceways X_

1.03. C Wire and Cable X_

1.03. D Boxes X_

1.03. E Cabinets and Enclosures X_

1.03. F Disconnecting Means X_

1.03. G Wiring Devices X_

B. Other Submittals: Provide the following submittals as required by the contract or as directed by the Contracting Officer.

Inspector Para # Description Date Required Checklist

1.03 H Vendor List Before Prefinal

3.07 C Grounding Resistance After Test

1.4 SUBMITTAL REQUIREMENTS:

A. Other Wiring Methods: - Omitted -

B. Raceways (Other): Submit product data on each different type.

C. Wire and Cable:

1. Narrative: Submit a typed narrative on each wiring type indicating insulation types, temperature, and color.

2. Control Wiring: Submit schematics for approval prior to installation whenever a wiring schematic is shown on the Drawings or if the contractor desires to use a different schematic.

D. Boxes: Submit catalog cuts on each type.

E. Cabinets and Enclosures: Submit data. If the contractor will construct them, submit shop drawings for approval before construction.

F. Disconnecting Means: Submit a list of disconnecting means to include manufacturer, Ampere and voltage ratings, and special design features required by project.

1. Fuses: Submit coordination curves for each motor-fuse combination.

G. Wiring Devices: Submit catalog cuts on receptacles and switches to include manufacturer, voltage and Ampere ratings, NEMA configuration (for receptacles), and intended purpose. Identify device plate for each different type and/or size.

1. Plugs: provide a list of required plugs with manufacturer's data.

H. Provide a list of the vendors for all equipment for maintenance personnel to contact them later for parts and service.

1.5 TRANSFORMER ROOMS, MECHANICAL ROOMS, and EQUIPMENT ROOMS: Use insulated copper conductors in rigid steel conduit or wiring troughs for all circuits of whatever type in the room.

1.6 FEEDER CIRCUITS: Use insulated copper conductors installed in rigid steel conduit or as shown.

1.7 BRANCH CIRCUITS:

A. Lighting and Convenience Outlet Wiring: Use only copper wire installed in raceways. *** (Use a combination of copper wire installed in raceways and modular wiring systems as indicated.)

B. Other than Lighting and Convenience Outlet Wiring: Use insulated copper conductors installed in raceways, except as noted.

1.8 CONTROL CIRCUITS: Use insulated copper conductors installed in raceways, routed in separate raceways from other types of wiring. Control wiring in transformer rooms, mechanical rooms, and equipment rooms shall utilize rigid conduit except for flexible connections to equipment. In damp or wet locations, use flexible conduit of the liquid-tight type. Control wiring shall not enter any enclosure, piece of equipment, panelboard, or junction box with any other type of wiring except as required for connection to control equipment.

1.9 EXPANSION COUPLINGS shall be provided when conduit crosses a building expansion joint, when passing between two rigid structures independent of each other, and long conduit runs (300 feet or greater). The coupling shall be suitable for the purpose and location intended, accommodating movements without collapsing or fracturing the conduit and damaging the wires it contains. Provide all fittings, including nipples, threaded sections, and short pieces of another conduit type with necessary fittings.

1.10 EMERGENCY CIRCUITS: Use insulated copper conductors installed in raceways, routed in separate raceways from other types of wiring.

1.11 FIRE ALARM CIRCUITS: - Omitted -

1.12 TELEPHONE/COMMUNICATION CIRCUITS: See Section 16700.

1.13 COMPUTER CIRCUITS:

PART 2 - PRODUCTS

2.1 GENERAL: Use generic "off the shelf" equipment. Do not field fabricate panels, switches, etc. Do not use pieces of equipment that are obsolete or scheduled to be obsoleted.

2.2 DESIGN BASES: Office occupancy sensor wall switches are designed around Leviton passive infrared occupancy sensor in the Decora line. They have adjustable sensitivity and time delay, mounted in standard wall switch boxes.

PART 3 - EXECUTION

3.1 RACEWAYS (inside and outside of buildings, direct buried or encased in concrete):

A. Rigid Steel Conduit shall be used where indicated and may be used in lieu of other conduit types.

Penetration of fire resistant walls, ceilings, and floors shall be accomplished with rigid steel conduit. If some other type of conduit is being used, a short length of rigid steel conduit shall be connected to the other conduit type and extended 3 feet on both sides of the wall from the point of penetration.

B. IMC Conduit may be used for rigid steel conduit as permitted by the NEC, except that IMC will not be used within slab-on-grade and inside block, brick, or masonry walls. IMC installed below slab-on-grade or in ground will be corrosion protected as required for rigid steel conduit.

C. Electrical Metallic Tubing (EMT) may be installed only within buildings. EMT shall not be installed in concrete or wet locations.

1. Fittings for EMT shall be the steel compression type only with '0' rings.

2. Setscrew type pressure fittings are not allowed.

D. Flexible Metallic Conduit shall only be used where indicated. Flexible conduit shall be supported from building structure or inverted T bar of suspended ceiling at intervals not exceeding 4 feet and within 12 inches of junction boxes or fittings. Lengths less than 3 feet where flexibility is required and lengths 6 feet or less used as fixture whips do not have to be supported. Flexible conduit shall be continuous with no splices.

1. Short length (less than 3 feet) of flexible conduit shall be provided for connection of all equipment subject to vibration such…