AMENDMENT 0002 SPECIFICATIONS DOC 22R0026 CTS Med Warehouse.pdf
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- Solicitation number
- W912ER22R0026
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This solicitation is for design-build construction services for the Iraq Counterterrorism Warehouse at Baghdad International Airport in Baghdad, Iraq. The project scope includes construction with an estimated cost between $5-10 million. Offerors must be registered in SAM and provide a valid CAGE code and DUNS number to be considered for award. The successful offeror will be required to provide performance and payment bonds or bank letters of guarantee. Funds are authorized but not presently available, and no contract award will be made until funding is in place. The government reserves the right to incorporate the awarded proposal into the contract. The contractor must provide all documentation requested, including for bonding and Defense Base Act insurance after award and prior to notice to proceed.
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Ren ICTS Medical Warehouse, Baghdad Intl Airport, Iraq 498752
PROJECT TABLE OF CONTENTS
DIVISION 01 - GENERAL REQUIREMENTS
01 11 00 SUMMARY OF WORK
01 14 00 WORK RESTRICTIONS
01 15 00.12 10 SUPPLEMENTARY REQUIREMENTS
01 30 00 ADMINISTRATIVE REQUIREMENTS
01 32 17.12 10 COST-LOADED NETWORK ANALYSIS SCHEDULES (NAS)
01 33 00 SUBMITTAL PROCEDURES
01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS
01 42 00 SOURCES FOR REFERENCE PUBLICATIONS
01 42 15 METRIC MEASUREMENTS
01 45 00.00 10 QUALITY CONTROL
01 45 00.15 10 RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE (RMS CM)
01 50 00 TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS
01 57 19 TEMPORARY ENVIRONMENTAL CONTROLS
01 58 00 PROJECT IDENTIFICATION
01 78 00.49 CLOSEOUT SUBMITTALS
01 78 23 OPERATION AND MAINTENANCE DATA
DIVISION 03 - CONCRETE
03 30 00 CAST-IN-PLACE CONCRETE
DIVISION 05 - METALS
05 12 00 STRUCTURAL STEEL
05 30 00 STEEL DECKS
05 50 13 MISCELLANEOUS METAL FABRICATIONS
DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES
06 10 00 ROUGH CARPENTRY
DIVISION 07 - THERMAL AND MOISTURE PROTECTION
07 84 00 FIRESTOPPING
07 92 00 JOINT SEALANTS
DIVISION 08 - OPENINGS
08 11 13 STEEL DOORS AND FRAMES
08 14 00 WOOD DOORS
08 33 23 OVERHEAD COILING DOORS -- ADDED BY AMENDMENT NO. 0002
08 71 00 DOOR HARDWARE
DIVISION 09 - FINISHES
09 29 00 GYPSUM BOARD
09 51 00 ACOUSTICAL CEILINGS
09 90 00 PAINTS AND COATINGS
DIVISION 10 - SPECIALTIES
10 14 00.20 INTERIOR SIGNAGE
10 22 13 WIRE MESH PARTITIONS
10 44 16 FIRE EXTINGUISHERS
PROJECT TABLE OF CONTENTS Page 1
W912ER22R0026 AMENDMENT 0002
DIVISION 11 - EQUIPMENT
11 11 37 ELECTRIC CHARGING STATIONS
DIVISION 12 - FURNISHINGS
12 50 00.13 10 FURNITURE AND FURNITURE INSTALLATION
DIVISION 13 - SPECIAL CONSTRUCTION
13 34 19 METAL BUILDING SYSTEMS
DIVISION 21 - FIRE SUPPRESSION
21 13 13 WET PIPE SPRINKLER SYSTEMS, FIRE PROTECTION
21 30 00 FIRE PUMPS
DIVISION 22 - PLUMBING
22 00 00 PLUMBING, GENERAL PURPOSE
DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)
23 00 00 AIR SUPPLY, DISTRIBUTION, VENTILATION, AND EXHAUST SYSTEMS
23 05 93 TESTING, ADJUSTING, AND BALANCING FOR HVAC
23 07 00 THERMAL INSULATION FOR MECHANICAL SYSTEMS
23 09 53.00 20 SPACE TEMPERATURE CONTROL SYSTEMS
23 74 33.00 40 PACKAGED, OUTDOOR, HEATING AND COOLING MAKEUP
AIR-CONDITIONERS
23 81 29 VARIABLE REFRIGERANT FLOW HVAC SYSTEMS
DIVISION 26 - ELECTRICAL
26 05 26.00 40 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS -- REVISED BY
AMENDMENT NO. 0002
26 05 48.00 10 SEISMIC PROTECTION FOR ELECTRICAL EQUIPMENT
26 08 00 APPARATUS INSPECTION AND TESTING
26 11 16 SECONDARY UNIT SUBSTATIONS
26 20 00 INTERIOR DISTRIBUTION SYSTEM -- REVISED BY AMENDMENT NO.
26 28 01.00 10 COORDINATED POWER SYSTEM PROTECTION
26 32 15.00 ENGINE-GENERATOR SET STATIONARY 15-2500 KW, WITH
AUXILIARIES
26 36 23 AUTOMATIC TRANSFER SWITCHES AND BY-PASS/ISOLATION SWITCH
26 41 00 LIGHTNING PROTECTION SYSTEM
26 51 00 INTERIOR LIGHTING
DIVISION 27 - COMMUNICATIONS
27 05 14.00 10 CABLE TELEVISION PREMISES DISTRIBUTION SYSTEM
27 05 28.36 40 CABLE TRAYS FOR COMMUNICATIONS SYSTEMS
27 10 00 BUILDING TELECOMMUNICATIONS CABLING SYSTEM
27 20 01.12 10 INTERIOR DISTRIBUTION SYSTEM FOR COMMUNICATIONS SYSTEMS
DIVISION 28 - ELECTRONIC SAFETY AND SECURITY
28 10 05 ELECTRONIC SECURITY SYSTEMS (ESS)
28 31 70 INTERIOR FIRE ALARM SYSTEM, ADDRESSABLE
28 33 00.00 40 FUEL-GAS DETECTION AND ALARM
PROJECT TABLE OF CONTENTS Page 2
DIVISION 31 - EARTHWORK
31 00 00 EARTHWORK
DIVISION 32 - EXTERIOR IMPROVEMENTS
32 01 19.61 SEALING OF JOINTS IN RIGID PAVEMENT
32 11 20 BASE COURSE FOR RIGID PAVING
32 13 13.06 PORTLAND CEMENT CONCRETE PAVEMENT FOR ROADS AND SITE
FACILITIES
32 16 19 CONCRETE CURBS, GUTTERS AND SIDEWALKS
DIVISION 33 - UTILITIES
33 16 15 WATER STORAGE STEEL TANKS
33 52 10 FUEL SYSTEMS PIPING (SERVICE STATION)
33 56 10 FACTORY-FABRICATED FUEL STORAGE TANKS
33 71 01 OVERHEAD TRANSMISSION AND DISTRIBUTION
33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION
-- End of Project Table of Contents --
PROJECT TABLE OF CONTENTS Page 3
SECTION TABLE OF CONTENTS
DIVISION 08 - OPENINGS
SECTION 08 33 23
OVERHEAD COILING DOORS -- ADDED BY AMENDMENT NO. 0002
PART 1 GENERAL
1.1 REFERENCES
1.2 SUBMITTALS
1.3 QUALITY CONTROL
1.3.1 Warranty
1.3.2 Operation And Maintenance Submittals
1.4 DELIVERY, STORAGE, AND HANDLING
PART 2 PRODUCTS
2.1 SYSTEM DESCRIPTION
2.1.1 Design Requirements
2.1.1.1 Door Detail Shop Drawings
2.1.2 Performance Requirements
2.1.2.1 Operational Cycle Life
2.2 COMPONENTS
2.2.1 Overhead Coiling Doors
2.2.1.1 Curtain Materials and Construction
2.2.1.2 Non-Insulated Curtains
2.2.1.3 Weather Stripping
2.2.1.4 Locking Devices
2.2.1.5 Safety Interlock
2.2.2 Hardware
2.2.2.1 Guides
2.2.2.2 Hood
2.2.3 Counterbalancing Mechanism
2.2.3.1 Brackets
2.2.3.2 Counterbalance Barrels
2.2.3.3 Spring Balance
2.2.3.4 Torsion Rod for Counter Balance
2.2.4 Manual Door Operators
2.2.4.1 Manual Chain-Hoist Door Operators
2.2.5 Electric Door Operators
2.2.5.1 Door-Operator Types
2.2.5.2 Electric Motors
2.2.5.3 Motor Bearings
2.2.5.4 Motor Starters, Controls, and Enclosures
2.2.5.5 Control Enclosures
2.2.5.6 Transformer
2.2.5.7 Sensing-Edge Device
2.2.5.8 Speed-Reduction Units
2.2.5.9 Chain Drives
2.2.5.10 Brakes
2.2.5.11 Clutches
2.2.5.12 Weather/Smoke Seal Sensing Edge
SECTION 08 33 23 Page 1
2.2.6 Surface Finishing
2.2.6.1 Baked-Enamel or Powder-Coat Finish
PART 3 EXECUTION
3.1 INSTALLATION
3.1.1 Field Painted Finish
3.2 ADJUSTING AND CLEANING
3.2.1 Acceptance Provisions
3.2.1.1 Maintenance and Adjustment
3.2.1.2 Cleaning
-- End of Section Table of Contents --
SECTION 08 33 23 Page 2
SECTION 08 33 23
OVERHEAD COILING DOORS -- ADDED BY AMENDMENT NO. 0002
PART 1 GENERAL
1.1 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)
ASME B29.400 (2001; (R 2008) (R 2013) (R 2018))
Combination, "H" Type Mill Chains, and Sprockets
ASTM INTERNATIONAL (ASTM)
ASTM A36/A36M (2019) Standard Specification for Carbon Structural Steel
ASTM A48/A48M (2003; R 2021) Standard Specification for Gray Iron Castings
ASTM A53/A53M (2020) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A153/A153M (2016a) Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
ASTM A307 (2021) Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength
ASTM F568M (2007) Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners
NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)
NEMA ICS 1 (2000; R 2015) Standard for Industrial Control and Systems: General Requirements
NEMA ICS 2 (2000; R 2020) Industrial Control and Systems Controllers, Contactors, and Overload Relays Rated 600 V
NEMA ICS 6 (1993; R 2016) Industrial Control and Systems: Enclosures
NEMA MG 1 (2016) Motors and Generators - Revision 1: 2018; Includes 2021 Updates to Parts
SECTION 08 33 23 Page 3
0, 1, 7, 12, 30, and 31
NEMA ST 1 (1988; R 1994; R 1997) Specialty Transformers (Except General Purpose Type)
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
NFPA 70 (2020; ERTA 20-1 2020; ERTA 20-2 2020; TIA
20-1; TIA 20-2; TIA 20-3; TIA 20-4)
National Electrical Code
UNDERWRITERS LABORATORIES (UL)
UL 325 (2017; Reprint Feb 2020) UL Standard for Safety Door, Drapery, Gate, Louver, and Window Operators and Systems
1.2 SUBMITTALS
Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.
Submit the following in accordance with Section 01 33 00 SUBMITTAL
PROCEDURES:
SD-02 Shop Drawings
Overhead Coiling Doors; G M
Counterbalancing Mechanism; G M
Electric Door Operators; G M
Guides; G M
Mounting Brackets; G M
Hood; G M
SD-03 Product Data
Overhead Coiling Doors
Hardware
Counterbalancing Mechanism
Manual Door Operators
Electric Door Operators
SD-10 Operation and Maintenance Data
Operation and Maintenance Manuals, Data Package 2; G R
SD-11 Closeout Submittals
Warranty; G M/R
SECTION 08 33 23 Page 4
1.3 QUALITY CONTROL
1.3.1 Warranty
Furnish a written guarantee that the helical spring and counterbalance mechanism are free from defects in material and workmanship for not less than two years after completion and acceptance of the project.
Warrant that upon notification by the Government, any defects in material, workmanship, and door operation are immediately correct within the same time period covered by the guarantee, at no cost to the Government.
1.3.2 Operation And Maintenance Submittals
Submit copies of the operation and maintenance manuals 30 calendar days prior to testing the Overhead Coiling Door Assemblies. Update and resubmit data for final approval no later than 30 calendar days prior to cContract completion.
Submit Operation and Maintenance Manuals for Overhead Coiling Door Assemblies, including the following items:
Manual Door Operators
Electric Door Operators
Hood
Counterbalancing Mechanism
Painting
Provide operation and maintenance manuals which are consistent with manufacturer's standard brochures, schematics, printed instructions, operating procedures, and safety precautions.
1.4 DELIVERY, STORAGE, AND HANDLING
Deliver doors to the jobsite wrapped in a protective covering with the brands and names clearly marked thereon. Store doors in an adequately ventilated dry location that is free from dirt and dust, water, or other contaminants. Store in a manner that permits easy access for inspection and handling. Handle doors carefully to prevent damage. Remove damaged items that cannot be restored to like-new condition and provide new items.
PART 2 PRODUCTS
2.1 SYSTEM DESCRIPTION
Provide overhead coiling doors with interlocking slats, complete with anchoring and door hardware, guides, hood, and operating mechanisms, and designed for use on openings as indicated. Doors must be spring counterbalanced, rolling type, and designed for use on exterior or interior openings, as indicated. Doors must be operated by electric-power with auxiliary hand chain operation. Doors to be surface-mounted type with guides at jambs set back a sufficient distance to provide a clear opening when door is in open position.
SECTION 08 33 23 Page 5
2.1.1 Design Requirements
2.1.1.1 Door Detail Shop Drawings
Provide installation drawings for door assemblies which show: elevations of each door type, shape and thickness of materials, finishes, details of joints and connections, details of guides and fittings, rough opening dimensions, location and description of hardware, anchorage locations, and counterbalancing mechanism and door operator details. Show locations of replaceable fusible links on wiring diagrams for power, signal and controls. For motor-operated doors include supporting brackets for motors, location, type, and ratings of motors, and safety devices.
Include a schedule showing the location of each door with the drawings.
2.1.2 Performance Requirements
2.1.2.1 Operational Cycle Life
Design all portions of the door, hardware and operating mechanism that are subject to movement, wear, or stress fatigue to operate through a minimum number of 10 cycles per day. One complete cycle of door operation is defined as when the door is in the closed position, moves to the fully open position, and returns to the closed position.
2.2 COMPONENTS
2.2.1 Overhead Coiling Doors
2.2.1.1 Curtain Materials and Construction
2.2.1.2 Non-Insulated Curtains
Form curtains from the manufacturer's standard shapes of interlocking slats.
2.2.1.3 Weather Stripping
Provide a hood baffle inside the hood that is a minimum 1.6 millimeter thick sheet of vinyl, neoprene rubber or equivalent. Provide guide weather stripping that is a minimum 1.6 millimeter thick sheet of vinyl, neoprene rubber, or equivalent.
Provide bottom bar weather-stripping that is a minimum 1.6 millimeter thick sheet of vinyl, neoprene rubber, or equivalent.
2.2.1.4 Locking Devices
Ensure that the slide bolt engages through slots in tracks for locking by padlock, located on both left and right jamb sides, operable from coil side.
Provide a locking device assembly which includes cylinder lock, operating handle, cam plate, and adjustable locking bars to engage through slots in tracks.
Provide a chain lock keeper suitable for a standard padlock.
SECTION 08 33 23 Page 6
2.2.1.5 Safety Interlock
Equip power-operated doors with a safety interlock switch to disengage power supply when the door is locked, or provide an operator with an internal lock sensing device to prevent the door opening when the door is locked.
2.2.2 Hardware
Ensure that all hardware conforms to ASTM A153/A153M , ASTM A307, and
ASTM F568M.
2.2.2.1 Guides
Provide guides with sufficient depth or incorporate a steel locking bar to retain the curtain in place under the wind pressure specified. Ensure curtain operates smoothly. Slot bolt holes for track adjustment.
Securely attach guides to adjoining construction with not less than 10 mm diameter bolts, spaced near each end and not over 762 mm apart.
2.2.2.2 Hood
Provide a hood with a minimum 24-gauge sheet metal, flanged at top for attachment to header and flanged at bottom to provide longitudinal stiffness. The hood encloses the curtain coil and counterbalance mechanism.
Hoods for openings more than 3658 mm in width must have intermediate support brackets to prevent excessive sag.
2.2.3 Counterbalancing Mechanism
Counterbalance doors by means of manufacturer's standard mechanism with an adjustable-tension, steel helical torsion spring mounted, around a steel shaft and contained in a spring barrel connected to top of curtain with barrel rings. Use grease-sealed or self-lubricating bearings for rotating members.
2.2.3.1 Brackets
Provide the manufacturer's standard mounting brackets with one located at each end of the counterbalance barrel conforming to ASTM A36/A36M.
Provide brackets of hot-rolled steel.
2.2.3.2 Counterbalance Barrels
Curtain must roll up on a barrel supported at head of opening on brackets and be balanced by a torsion spring system in the barrel. Fabricate spring barrel of manufacturer's standard hot-formed, structural-quality, welded or seamless carbon-steel pipe, conforming to ASTM A53/A53M or equivalent. Ensure the barrel is of sufficient diameter and wall thickness to support rolled-up curtain without distortion of slats. Limit barrel deflection to not more than 2.5 mm per meter of span under full load.
a. Barrel
Provide steel pipe capable of supporting curtain load with maximum deflection of 2.5 mm per meter of width.
SECTION 08 33 23 Page 7
b. Spring Balance
Provide an oil-tempered, heat-treated steel helical torsion spring assembly designed for proper balance of door. Ensure that effort to operate manually operated units does not exceed 110 N. At least 80 percent of the door weight must be counterbalanced at any position.
Provide wheel for applying and adjusting spring torque.
2.2.3.3 Spring Balance
Install one or more oil-tempered, heat-treated steel helical torsion springs within the barrel, capable of producing sufficient torque to assure easy operation of the door curtain. Provide and size springs to counterbalance weight of curtain, with uniform adjustment accessible from outside barrel. Secure ends of springs to barrel and shaft with cast-steel barrel plugs.
2.2.3.4 Torsion Rod for Counter Balance
Fabricate rod from the manufacturer's standard cold-rolled steel, sized to hold fixed spring ends and carry torsional load.
2.2.4 Manual Door Operators
2.2.4.1 Manual Chain-Hoist Door Operators
Provide door operators which consist of an endless steel hand chain, chain-pocket wheel, guard, and a geared reduction unit with a maximum lifting force of 111 N Required pull for operation cannot exceed 16 kilogram. Chain must extend to within 914 mm of floor.
Provide chain hoists with a mechanism allowing the curtain to be stopped at any point in its upward or downward travel and to remain in that position until moved to the fully open or closed position. Provide hand chains of galvanized steel. Ensure that the yield point of the chain is at least three times the required hand-chain pull.
Provide chain sprocket wheels of cast iron conforming to ASTM A48/A48M.
2.2.5 Electric Door Operators
Provide electrical wiring and door operating controls conforming to the applicable requirements of NFPA 70 and UL 325 . The door manufacturer must furnish automatic control and safety devices, including extra flexible type SO cable and spring-loaded automatic takeup reel or equivalent device, as required for proper operation of the doors. Conduit, wiring, and mounting of controls are specified in Section 26 20 00 INTERIOR
DISTRIBUTION SYSTEM.
Electric door-operator assemblies need to be the sizes and capacities recommended and provided by the door manufacturer for specified doors.
Furnish complete assemblies with electric motors and factory-prewired motor controls, starter, gear reduction units, solenoid-operated brakes, clutch, remote-control stations, manual or automatic control devices, and accessories as required for proper operation of the doors.
Design the operators so that motors may be removed without disturbing the
SECTION 08 33 23 Page 8 limit-switch adjustment and affecting the emergency auxiliary operators.
Provide a manual operator of crank-gear or chain-gear mechanisms with a release clutch to permit manual operation of doors in case of power failure. Arrange the emergency manual operator so that it may be put into and out of operation from floor level, and its use does not affect the adjustment of the limit switches. Provide an electrical or mechanical device that automatically disconnects the motor from the operating mechanism when the emergency manual operating mechanism is engaged.
2.2.5.1 Door-Operator Types
Provide an operator mounted to the right or left door head plate with the operator on top of the door-hood assembly and connected to the door drive shaft with drive chain and sprockets. Headroom is required for this type of mounting.
2.2.5.2 Electric Motors
Provide motors which are the high-starting-torque, reversible, constant-duty electrical type with overload protection of sufficient torque and wattage to move the door in either direction from any position. Ensure they produce a door-travel speed of not less than 0.2 nor more than 0.3 meter per second without exceeding the wattage rating.
Provide motors which conform to NEMA MG 1 designation, temperature rating, service factor, enclosure type, and efficiency to the requirements specified. Motors must be suitable for operation on current of the characteristics indicated. Motor enclosures must be the drip-proof type or NEMA TEFC and TENV type. Install motors in approved locations.
2.2.5.3 Motor Bearings
Select bearings with bronze-sleeve or heavy-duty ball or roller antifriction type with full provisions for the type of thrust imposed by the specific duty load.
Pre-lubricate and factory seal bearings in motors less than 375 watts.
Equip motors coupled to worm-gear reduction units with either ball or roller bearings.
Equip bearings in motors 375 watts or larger with lubrication service fittings. Fit lubrication fittings with color-coded plastic or metal dust caps.
In any motor, bearings that are lubricated at the factory for extended duty periods do not need to be lubricated for a given number of operating hours. Display this information on an appropriate tag or label on the motor with instructions for lubrication cycle maintenance.
2.2.5.4 Motor Starters, Controls, and Enclosures
Provide each door motor with: a factory-wired, unfused, disconnect switch;
a reversing, across-the-line magnetic starter with thermal overload protection; 24-volt operating coils with a control transformer limit switch; and a safety interlock assembled in a NEMA ICS 6 type enclosure as specified herein. Ensure control equipment conforms to NEMA ICS 1 and
NEMA ICS 2 .
SECTION 08 33 23 Page 9
Provide adjustable switches, electrically interlocked with the motor controls and set to stop the door automatically at the fully open and fully closed position.
2.2.5.5 Control Enclosures
Provide control enclosures that conform to NEMA ICS 6 .
2.2.5.6 Transformer
Provide starters with 230/460 to 115 volt control transformers with one secondary fuse when required to reduce the voltage on control circuits to 24volts or less. Provide a transformer conforming to NEMA ST 1 .
2.2.5.7 Sensing-Edge Device
Provide each door with a pneumatic or electric sensing device that meets UL 325 , extends the full width of the door, and is located within a U-section neoprene or rubber astragal, mounted on the bottom rail of the bottom door section. Device needs to immediately stop and reverse the door upon contact with an obstruction in the door opening or upon failure of the device or any component of the control system and cause the door to return to its user-defined open position. Any momentary door-closing circuit must be automatically locked out and the door must be operable manually or with constant pressure controls until the failure or damage has been corrected. A sensing device is not a substitute for a limit switch.
Connect sensing device to the control circuit through a retracting cord and reel.
2.2.5.8 Speed-Reduction Units
Provide speed-reduction units consisting of hardened-steel worm and bronze worm gear assemblies or planetary gear reducers running in oil or grease and inside a sealed casing, coupled to the motor through a flexible coupling. Drive shafts need to rotate on ball- or roller-bearing assemblies that are integral with the unit.
Provide minimum ratings of speed reduction units in accordance with AGMA provisions for class of service.
Ground worm gears to provide accurate thread form; machine teeth for all other types of gearing. Surface harden all gears.
Provide antifriction type bearings equipped with oil seals.
2.2.5.9 Chain Drives
Provide roller chains that are a power-transmission series steel roller type conforming to ASME B29.400 , with a minimum safety factor of 10 times the design load.
Heat-treat or otherwise harden roller-chain side bars, rollers, pins, and bushings.
Provide high-carbon steel chain sprockets with machine-cut hardened teeth, finished bore and keyseat, and hollow-head setscrews.
SECTION 08 33 23 Page 10
2.2.5.10 Brakes
Provide 360-degree shoe brakes or shoe and drum brakes. Ensure the brakes are solenoid-operated and electrically interlocked to the control circuit to set automatically when power is interrupted.
2.2.5.11 Clutches
Ensure clutches are friction type or adjustable centrifugal type.
2.2.5.12 Weather/Smoke Seal Sensing Edge
Provide automatic stop control by an automatic sensing switch within neoprene astragal extending the full width of door bottom bar.
Provide an electric sensing edge device. Ensure the door immediately stops downward travel when contact occurs before door fully closes.
Provide a self-monitoring sensing edge connection to the motor operator.
2.2.6 Surface Finishing
Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for recommendations for applying and designating finishes.
Noticeable variations in the same metal component are not acceptable.
Variations in appearance of adjoining components are acceptable if they are within the range of approved samples and are assembled or installed to minimize contrast.
2.2.6.1 Baked-Enamel or Powder-Coat Finish
Manufacturer's standard baked-on finish consisting of prime coat and thermosetting topcoat. Comply with the coating manufacturer's written instructions for cleaning, pretreatment, application, and minimum dry film thickness.
PART 3 EXECUTION
3.1 INSTALLATION
Install overhead coiling door assembly, anchors and inserts for guides, brackets, motors, switches, hardware, and other accessories in accordance with approved detail drawings and manufacturer's written instructions.
Upon completion of installation, ensure doors are free from all distortion.
Install overhead coiling doors, motors, hoods, and operators at the mounting locations as indicated for each door in the Contract Documents and as required by the manufacturer.
Install overhead coiling doors, switches, and controls along accessible routes in compliance with regulatory requirements for accessibility and as required by the manufacturer.
3.1.1 Field Painted Finish
Ensure field painted steel doors and frames are in accordance with Section 09 90 00 PAINTS AND COATINGS and the manufacturer's written instructions.
Protect the weather stripping from paint. Ensure that the finishes are free of scratches or other blemishes.
SECTION 08 33 23 Page 11
3.2 ADJUSTING AND CLEANING
3.2.1 Acceptance Provisions
After installation, adjust the hardware and moving parts. Lubricate bearings and sliding parts as recommended by manufacturer to provide smooth operating functions for ease movement, free of warping, twisting, or distortion of the door assembly.
Adjust seals to provide a weather-tight fit around entire perimeter.
Engage a factory-authorized service representative to perform startup service and checks according to the manufacturer's written instructions.
Test the door opening and closing operation when activated by controls or alarm-connected fire-release system. Adjust controls and safeties.
Replace damaged and malfunctioning controls and equipment. Reset the door-closing mechanism after a successful test.
Test and make final adjustment of new doors at no additional cost to the Government.
3.2.1.1 Maintenance and Adjustment
Not more than 90 calendar days after completion and acceptance of the project, examine, lubricate, test, and re-adjust doors as required for proper operation.
3.2.1.2 Cleaning
Clean doors in accordance with manufacturer's approved instructions.
-- End of Section --
SECTION 08 33 23 Page 12
SUBMITTAL FORM,Jan 96 PREVIOUS EDITION IS OBSOLETE PAGE 1 OF 1 PAGES
Ren ICTS Medical Warehouse, Baghdad Intl Airport, Iraq
08 33 23 SD-02 Shop Drawings
2.2.1 G MOverhead Coiling Doors
2.2.3 G MCounterbalancing Mechanism
2.2.5 G MElectric Door Operators
G MBottom Bars
2.1.1.1 G MGuides
2.2.3.1 G MMounting Brackets
2.2.2.2 G MHood
SD-03 Product Data
2.2.1Overhead Coiling Doors
2.2.2Hardware
2.2.3Counterbalancing Mechanism
2.2.4Manual Door Operators
2.2.5Electric Door Operators
SD-10 Operation and Maintenance
Data
1.3.2 G ROperation and Maintenance
Manuals
SD-11 Closeout Submittals
1.3.1 G M/RWarranty
SUBMITTAL REGISTER
CONTRACT NO.
TITLE AND LOCATION CONTRACTOR
CONTRACTOR:
SCHEDULE DATES
CONTRACTOR
ACTION
APPROVING AUTHORITY
A C T I V I T Y
N O
T R A N S M I T T A L
N O
S P E C
S E C T
DESCRIPTION
ITEM SUBMITTED
P A R A G R A P H
C L A S S I F I C A T I O N
G O V T
O R
A E
R E V W
R SUBMIT
APPROVAL
NEEDED
BY
MATERIAL
NEEDED
BY
A C T I O N
C O D E
DATE
OF
ACTION
DATE FWD
TO APPR
AUTH/
DATE RCD
FROM
CONTR
DATE FWD
TO OTHER
REVIEWER
DATE RCD
FROM OTH
REVIEWER
A C T I O N
C O D E
DATE
OF
ACTION
MAILED
TO
CONTR/
DATE RCD
FRM APPR
AUTH REMARKS
(a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m) (n) (o) (p) (q) (r)
DIVISION 26 - ELECTRICAL
SECTION 26 05 26.00 40
GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS -- REVISED BY AMENDMENT NO. 0002
PART 1 GENERAL
1.1 REFERENCES
1.2 SUBMITTALS
1.3 QUALITY CONTROL
1.3.1 Regulatory Requirements
1.3.2 Standard Products
1.3.3 Ground Resistance Test Equipment
1.3.4 Micro-Ohmmeter Test Equipment
PART 2 PRODUCTS
2.1 MATERIALS
2.1.1 Ground Rods
2.1.2 Ground Wires
2.1.2.1 Bare
2.1.2.2 Insulated
2.1.2.3 Straps/Jumpers
2.1.3 Connectors and Fasteners
2.1.3.1 Exothermic Welds
2.1.3.2 Irreversible Compression Lugs
2.1.3.3 Mechanical
2.1.3.4 Fasteners
2.1.4 Test Wells
2.1.5 Conductive Corrosion Inhibiting Compounds
2.1.6 Ground Buses
PART 3 EXECUTION
3.1 INSTALLATION
3.1.1 Ground Rods
3.1.2 Conductors
3.1.3 Counterpoise
3.1.4 Ground Buses
3.1.5 Building Grounds
3.1.6 Equipment Grounding
3.1.6.1 Equipment and Enclosure Bonding
3.1.6.2 Bonding of Conduit and Raceway Systems
3.1.6.3 Cable Tray Bonding
3.1.7 Bonding Materials And Methods
3.1.7.1 Brazing
3.1.7.2 Welding
3.1.7.3 Clamping
3.1.7.4 Cleaning of Bonding Surfaces
3.1.7.5 Protection of Finished Bonds
3.2 FIELD QUALITY CONTROL
SECTION 26 05 26.00 40 Page 1
3.2.1 Bond Resistance Test
3.2.2 Ground Resistance Tests
3.2.3 Ground Isolation Test
3.2.4 Equipment Continuity Test
3.3 CLOSEOUT ACTIVITIES
-- End of Section Table of Contents --
SECTION 26 05 26.00 40 Page 2
SECTION 26 05 26.00 40
GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS -- REVISED BY AMENDMENT NO. 0002
PART 1 GENERAL
Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM applies to work specified in this section.
Section 26 41 00 LIGHTNING PROTECTION SYSTEMS applies to work specified in this section.
1.1 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
AMERICAN WELDING SOCIETY (AWS)
AWS A3.0M/A3.0 (2020) Standard Welding Terms and Definitions
AWS A5.8/A5.8M (2019) Specification for Filler Metals for Brazing and Braze Welding
AWS B2.1/B2.1M (2014; Errata 2015) Specification for Welding Procedure and Performance Qualification
ASTM INTERNATIONAL (ASTM)
ASTM B3 (2013) Standard Specification for Soft or Annealed Copper Wire
ASTM B8 (2011; R 2017) Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
ASTM B187/B187M (2020) Standard Specification for Copper, Bus Bar, Rod and Shapes and General Purpose Rod, Bar and Shapes
INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)
IEEE 81 (2012) Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System
IEEE C2 (2017; Errata 1-2 2017; INT 1 2017) National Electrical Safety Code
NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)
ANSI/NEMA GR 1 (2007) Grounding Rod Electrodes and Grounding Rod Electorode Couplings
SECTION 26 05 26.00 40 Page 3
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
NFPA 70 (2020; ERTA 20-1 2020; ERTA 20-2 2020; TIA
20-1; TIA 20-2; TIA 20-3; TIA 20-4)
National Electrical Code
NFPA 780 (2017) Standard for the Installation of Lightning Protection Systems
TELECOMMUNICATIONS INDUSTRY ASSOCIATION (TIA)
TIA-607 (2015c; Addendum 1 2017) Generic Telecommunications Bonding and Grounding (Earthing) for Customer Premises
U.S. DEPARTMENT OF DEFENSE (DOD)
MIL-STD-889 (2016; Rev C) Dissimilar Metals
UNDERWRITERS LABORATORIES (UL)
UL 467 (2013; Reprint Jun 2017) UL Standard for Safety Grounding and Bonding Equipment
UL 546 (2008) UL Outline of Investigation for Conductor Termination Compounds
1.2 SUBMITTALS
Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.
Submit the following in accordance with Section 01 33 00 SUBMITTAL
PROCEDURES:
SD-03 Product Data
Ground Rods; G M
Ground Wires; G M
Connectors and Fasteners; G M
Test Wells; G M
Conductive Corrosion Inhibiting Compounds; G M
Ground Buses; G M
SD-06 Test Reports
Bond Resistance Test; G M
Ground Resistance Tests; G M
Ground Isolation Test; G M
SECTION 26 05 26.00 40 Page 4
Equipment Continuity Test; G M
SD-07 Certificates
Ground Resistance Test Equipment; G M
Micro-Ohmmeter Test Equipment; G M
SD-11 Closeout Submittals
Record Drawings
1.3 QUALITY CONTROL
1.3.1 Regulatory Requirements
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. Ensure equipment, materials, installation, and workmanship are in accordance with the mandatory and advisory provisions of NFPA 70 , IEEE C2 unless more stringent requirements are specified or indicated.
1.3.2 Standard Products
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. Provide products which have been in satisfactory commercial or industrial use for 2 years prior to bid opening. Ensure the 2-year period includes applications of equipment and materials under similar circumstances and of similar size. Ensure the product has been on sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 2-year period. Where two or more items of the same class of equipment are required, these items must be products of a single manufacturer.
1.3.3 Ground Resistance Test Equipment
Provide combination 3-point and 4-point type ground resistance test equipment specifically designed for grounding electrode resistance and soil resistivity tests. Submit proof of current equipment calibration with test equipment product data.
1.3.4 Micro-Ohmmeter Test Equipment
Perform circuit and bond resistance tests using a micro-ohmmeter with the following characteristics:
a. Resistance range selectable and capable of measuring to 10 micro-Ohms using a minimum of 1 ampere of test current.
b. Positive and negative test leads of the 2-wire balanced type.
Provide both clamp and probe type connections to allow measurements across all bonded surfaces. Provide long length balanced test lead to allow measurements from a bonding location to the nearest test well.
Submit proof of current equipment calibration with test equipment product
SECTION 26 05 26.00 40 Page 5 data.
PART 2 PRODUCTS
Submit material, equipment, and fixture lists for grounding systems, including manufacturer's style or catalog numbers, specification and drawing reference numbers, warranty information, and fabrication site information.
2.1 MATERIALS
2.1.1 Ground Rods
Provide ground rods of copper-clad steel conforming to UL 467 and ANSI/NEMA GR 1 . Ensure ground rods are not less than 20 mm in diameter and 3000 mm in length.
Where ground rod length is greater than 3000 mm, provide sectional type ground rods with each section 3000 mm in length. Join sectional type ground rods using exothermic welding completely around both rod/coupling joints. Ensure ground rods have cone-shaped point on the end of the first section driven into the ground.
Provide ground rods and ground rod sections die-stamped near the top with the name or trademark of the manufacturer and the length of the segment in feet.
2.1.2 Ground Wires
2.1.2.1 Bare
Provide annealed bare copper, Class "B" stranded ground and bond wires in accordance with ASTM B8 for wires #4 AWG25 mm and larger and solid in accordance with ASTM B3 for wires #6 AWG16 mm and smaller. Provide conductors with 98 percent conductivity and sized wires in accordance with the requirements of NFPA 70 and NFPA 780 .
2.1.2.2 Insulated
Ensure insulated conductors conform to the requirements of Section 26 20 00
INTERIOR DISTRIBUTION SYSTEM.
Where installed in conduit as part of a complete circuit provide conductors with green insulation for sizes #8 AWG10 mm and smaller and with green phase tape at each end and in each junction box for sizes #6 AWG 16 mm and larger.
2.1.2.3 Straps/Jumpers
Provide copper bonding straps and jumpers with a cross-sectional area of not less than as indicated. Ensure bonding straps and jumpers for shock-mounted devices with pivot, hinged or swivel joints are made of tinned-copper wire.
2.1.3 Connectors and Fasteners
2.1.3.1 Exothermic Welds
Ensure the molds, materials and powder charges used to make exothermic
SECTION 26 05 26.00 40 Page 6 welds are the standard product of a single manufacturer and listed by the manufacturer for use on the specific type, size, quantity and configuration of conductors to which the weld is applied.
2.1.3.2 Irreversible Compression Lugs
Provide irreversible compression lug type connectors manufactured from tin-plated copper and installed using a hydraulic compression tool and die to apply correct, uniformly distributed, circumferential pressure. Ensure tools and dies are as recommended by the irreversible compression lug type connector manufacturer. Use an embossing die code or other standard method to provide visible indication that a connector has been adequately compressed onto the conductor. Apply irreversible compression lug type connectors in strict accordance with the manufacturer's written instructions and published installation instructions. Use 2-hole lug type connectors for connections to NEMA cable pads and bus bars, and single-hole connectors otherwise.
2.1.3.3 Mechanical
Provide split bolt and clamp style mechanical type connectors manufactured from copper, listed by the manufacturer as suitable for direct burial use. Ensure mechanical type connectors are applied in strict accordance with the manufacturer's published installation instructions.
2.1.3.4 Fasteners
Provide bolts, nuts, washers, lock washers, and associated fasteners used for grounding and bonding connections manufactured of copper. Where fasteners contact dissimilar metals, apply conductive oxide-inhibiting compound.
2.1.4 Test Wells
Provide test wells that are H2O rated, precast reinforced concrete, rectangular, with open bottom and concrete or cast iron lid/frame. Ensure test wells have inside dimensions of not less than 15 inches wide by 22 inches long by 24 inches deep. Provide test well lid with cast "GROUND" legend.
2.1.5 Conductive Corrosion Inhibiting Compounds
Provide conductive corrosion inhibiting compounds UL Listed in accordance with UL 546 , listed by the manufacturer as suitable for the application, and suitable for all aluminum and copper conductor/connector applications. Ensure conductive corrosion inhibiting compounds inhibit oxidation at the conductor/connector interface and have no deleterious effect on the conductor/connector metal or EPDM, natural rubber, or polyethylene insulating materials.
Provide gritted conductive corrosion inhibiting compound that are non-petroleum based and non-toxic, and contain conductive grit. Ensure gritted conductive corrosion inhibiting compound is specified by the manufacturer for application to the conductor/connector interface of compression connectors.
2.1.6 Ground Buses
Provide solid copper ground buses conforming to ASTM B187/B187M with
SECTION 26 05 26.00 40 Page 7 minimum dimensions of 6 millimeters thick, 100 millimeters wide, and 300 millimeters in length or as indicated. Ensure ground buses are equipped with two UL Recognized red 1000V rated insulated standoffs and stainless steel mounting brackets.
Provide Telecommunications Main Ground Buses and Telecommunications Ground Buses in meeting the standards of TIA-607 .
Provide grounding buses with predrilled NEMA hole configuration as indicated.
PART 3 EXECUTION
3.1 INSTALLATION
Install grounding systems in accordance with NFPA 70 , NFPA 780 and IEEE C2 , and as indicated.
Bond exposed non-current-carrying metallic parts of electrical equipment and metallic raceway systems to ground.
Bond grounding conductors in metallic and non-metallic raceways to ground. Make ground connections at equipment and to ground rods as indicated. Interconnect all grounding media in or on the structure to provide a common ground potential. This includes lightning protection, electrical service, telecommunications system grounds, as well as underground metallic piping systems.
Bond wiring system neutrals to ground in accordance with the requirements of NFPA 70 . Where ground fault protection is employed, ensure that connection of ground and neutral does not interfere with correct operation of fault protection.
Counterpoise ground systems consist of a series of ground rods with a direct buried grounding conductor loop, configured to minimize the number of dead-ends, interconnecting the individual ground rods. Provide ground rods in the locations indicated.
3.1.1 Ground Rods
Install ground rods so that the top of the rod is not less than 450 millimeter below finished grade.
3.1.2 Conductors
Install bare or insulated conductors as indicated. Install bare conductors where not specifically identified as bare or insulated except where installed in conduit with associated phase conductors. Install insulated conductors in conduit with insulation of the same material as the associated phase conductors with which it is installed.
Provide straps/jumpers across joints subject to vibration. Install strap/jumper such that vibration will not change its electrical characteristics. Apply strap/jumper to the metallic structure on each side of the joint; do not penetrate any adjacent parts. Install straps/jumpers in areas that are accessible for maintenance. Install strap/jumper such that it does not restrict the movement of the metallic structures to which
SECTION 26 05 26.00 40 Page 8 it is connected. Install strap/jumper such that it does not weaken the metallic structures to which it is attached. Do not connect two or more straps/jumpers in series.
3.1.3 Counterpoise
Install 11.7 millimeter diameter (120 mm) bare copper counterpoise grounding conductor direct buried outside of the structure drip line, within 600 to 1800 millimeters of the structure foundation, with a minimum of 450 millimeters of earth cover. Install counterpoise grounding conductor 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 conductor.
Install ground rods vertically into the earth not less 3000 mm with top of ground rod not less than 450 millimeter below finished grade. Bond ground rods to counterpoise grounding conductor at intervals no less than 6 linear meters nor greater than 12 linear meters of ground counterpoise cable.
3.1.4 Ground Buses
Install ground busses in accordance with manufacturer's instructions.
3.1.5 Building Grounds
Install 11.7 millimeter diameter bare copper ground conductor from concrete encased foundation rebar to counterpoise. Connect conductors to rebar using exothermic welds. Install one conductor a minimum of every 18,000 millimeter of concrete foundation perimeter. Connect ground conductors to columns and counterpoise using exothermic welds.
3.1.6 Equipment Grounding
Install ground systems for power, telecommunications, and instrumentation. Independently connect each system to the building counterpoise.
3.1.6.1 Equipment and Enclosure Bonding
Bond each metallic enclosure and all electrical equipment to ground. Make at least one copper connection from the system ground point to one or more enclosures in the area such that all enclosures and equipment provide a low-impedance path to ground when properly bonded together.
In addition to the green colored equipment grounding conductor required in each raceway and sized in accordance with Table 250.122 of NFPA 70 , bond each panelboard, switchboard enclosure, transformer housing, motor housing, disconnect, starter, and other electrical equipment, to the grounding system with a stranded copper conductor, routed external to the feeder raceway.
3.1.6.2 Bonding of Conduit and Raceway Systems
Bond all metal conduit, fittings, junction boxes, outlet boxes, armored and metal sheathed cable, and other raceways. Ensure adequate electrical contact at the joints and terminations. Ensure metallic raceway systems
SECTION 26 05 26.00 40 Page 9 have electrical continuity with equipment. Individually and directly connect equipment to the building ground, independent of the raceway system.
For rigid metal conduit and terminations, ensure threaded connections are wrench-tight with no exposed threads. Ream all ends of the conduit to remove burrs and rough edges. Bond conduits entering boxes and enclosures to the box with bonding-type locknuts, one outside and one inside.
Locknuts that gouge into the metal box when tightened are not acceptable.
Conduit systems that are interrupted by PVC dielectric links are bonded separately on either side of the link. Do not jumper the dielectric link.
Install flexible metal conduit with an integral grounding conductor.
3.1.6.3 Cable Tray Bonding
Bond cable tray sections together. Cable tray sections in tandem assembly are considered as having electrical continuity when these sections are bonded with the appropriate bolts. Install bond straps across expansion joints. Bond cable trays to the building ground system.
3.1.7 Bonding Materials And Methods
Accomplish bonding of metal surfaces by welding .
3.1.7.1 Brazing
Ensure brazing solder conforms to AWS A5.8/A5.8M .
3.1.7.2 Welding
Weld using the exothermic process with procedures conforming to AWS A3.0M/A3.0 , AWS B2.1/B2.1M , and manufacturer's recommendation. Where dissimilar metals are to be joined via exothermic weld, follow the weld kit manufacturer's recommendations and published instructions. Ensure connections between dissimilar metals do not produce galvanic action in accordance with MIL-STD-889 .
Use welding processes of the exothermic fusion type that makes a connection without corroding or loosening. Ensure process joins all strands and does not cause the parts to be damaged or weakened. Completed connection or joint is equal or larger in size than the conductors joined and has the same current-carrying capacity as the largest conductor.
Paint the buried ground connections with a bitumastic paint.
3.1.7.3 Clamping
In external locations, use clamping only where a disconnect type of connection is required. Connection device may utilize threaded fasteners. Construct device such that positive contact pressure is maintained at all times. Use machine bolts with spring-type lockwashers.
3.1.7.4 Cleaning of Bonding Surfaces
Thoroughly clean surfaces that comprise the bond before joining. Apply an appropriate abrasive with gentle and uniform pressure to ensure a smooth and uniform surface. Do not remove excessive metal from the surface.
Clean clad metals in such a manner that the cladding material is not
SECTION 26 05 26.00 40 Page 10 penetrated by the cleaning process. Then clean bare metal with an appropriate solvent to remove any grease, oil, dirt, corrosion preventives, and other contaminants. Bond to the cleaned area within one hour after cleaning. Seal joint and refinish the exposed surfaces within two hours of exposure to prevent oxidation. When additional time is required, apply a corrosion preventive compound until the area can be refinished.
3.1.7.5 Protection of Finished Bonds
Protect finished bonds by painting to match the original finish after the bond is made.
3.2 FIELD QUALITY CONTROL
Perform PT&I tests and provide submittals as specified in Section 26 08 00 APPARATUS COORDINATION, INSPECTION AND TESTING apply to this section.
Perform the following tests in the presence of the Contracting Officer.
Furnish test equipment and personnel and submit written results of each test. Notify the Contracting Officer at least 14 calendar working days prior to each test.
Submit written results of each test to Contracting Officer for review and approval. Document each location where test is performed, the field conditions at the time of the test, the measured results of the test, and whether the measured results "PASSED" or "FAILED" relative to specified pass/fail performance criteria.
Perform rework to correct FAILED conditions at no additional cost to the Government.
3.2.1 Bond Resistance Test
Resistance of any bond connection cannot exceed 0.5 milliohm. Rework bonds that exceed this resistance at no additional cost to the Government.
3.2.2 Ground Resistance Tests
Test grounding systems for ground resistance. Total resistance from any point on the ground network to the building counterpoise cannot exceed 50 milliohms.
Make ground resistance and counterpoise tests during dry weather, and no sooner than 48 hours after rainfall. Conduct tests using the ratio method that measures the ratio of the resistance to earth of an auxiliary test electrode to the series resistance of the electrode under test and a second auxiliary electrode. Perform measurements in accordance with
IEEE 81 .
3.2.3 Ground Isolation Test
Test ground systems for isolation from other ground systems.
3.2.4 Equipment Continuity Test
Test connection from electrical distribution equipment including panelboards, switchboards, transformers, substations, and motor control centers to counterpoise. Measure and record the circuit resistance
SECTION 26 05 26.00 40 Page 11 between electrical equipment ground connections and the counterpoise. The circuit resistance shall not exceed 5 Ohms.
3.3 CLOSEOUT ACTIVITIES
Submit record drawings indicating the location of ground rods, mats, grids, building ground bus, supplementary grounding electrodes, steel building columns, and other metal structures connected to the grounding system.
-- End of Section --
SECTION 26 05 26.00 40 Page 12
DIVISION 26 - ELECTRICAL
SECTION 26 20 00
INTERIOR DISTRIBUTION SYSTEM -- REVISED BY AMENDMENT NO. 0002
PART 1 GENERAL
1.1 REFERENCES
1.2 DEFINITIONS
1.3 SUBMITTALS
1.4 QUALITY ASSURANCE
1.4.1 Fuses
1.4.2 Regulatory Requirements
1.4.3 Standard Products
1.4.3.1 Alternative Qualifications
1.4.3.2 Material and Equipment Manufacturing Date
1.5 MAINTENANCE
1.5.1 Electrical Systems
1.6 WARRANTY
PART 2 PRODUCTS
2.1 MATERIALS AND EQUIPMENT
2.2 CONDUIT AND FITTINGS
2.2.1 Rigid Metallic Conduit
2.2.1.1 Rigid, Threaded Zinc-Coated Steel Conduit
2.2.1.2 Rigid Aluminum Conduit
2.2.2 Rigid Nonmetallic Conduit
2.2.3 Intermediate Metal Conduit (IMC)
2.2.4 Electrical, Zinc-Coated Steel Metallic Tubing (EMT)
2.2.5 Plastic-Coated Rigid Steel and IMC Conduit
2.2.6 Flexible Metal Conduit
2.2.6.1 Liquid-Tight Flexible Metal Conduit, Steel
2.2.7 Fittings for Metal Conduit, EMT, and Flexible Metal Conduit
2.2.7.1 Fittings for Rigid Metal Conduit and IMC
2.2.7.2 Fittings for EMT
2.2.8 Fittings for Rigid Nonmetallic Conduit
2.2.9 Liquid-Tight Flexible Nonmetallic Conduit
2.3 SURFACE RACEWAY
2.3.1 Surface Metal Raceway
2.4 BUSWAY
2.4.1 Feeder Busways
2.5 CABINETS, JUNCTION BOXES, AND PULL BOXES
2.6 WIRES AND CABLES
2.6.1 Conductors
2.6.1.1 Equipment Manufacturer Requirements
2.6.1.2 Minimum Conductor Sizes
2.6.2 Color Coding
2.6.2.1 Ground and Neutral Conductors
2.6.2.2 Ungrounded Conductors
2.6.3 Insulation
SECTION 26 20 00 Page 1
2.6.4 Bonding Conductors
2.6.4.1 Telecommunications Bonding Backbone (TBB)
2.6.4.2 Bonding Conductor for Telecommunications
2.6.5…
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