ATTACHMENT 4 SPECS SAT FJRP052994 - ADF FJRP199040 dated 4 June 2021 Vol 4 of 4 258 pages.pdf

Project Manual – Specifications

VOLUME 4 – DIV 27 - 41

Addendum #2

• C-17 CONV. ADD/ALTER SMALL AIR TERMINAL

BLDG 5, FJRP052994,

AND

• C-17 CONV. CNS AIR DROP FACILITY,

FJRP199040

NGB Contract: W9133L16D0005 Task Order: W9124218F0095, w/Mod #1

PN: FJRP052994 & FJRP199040

Issued June 4, 2021

NORTH CAROLINA AIR NATIONAL GUARD

SMALL AIR TERMINAL ADD/ALTER AIR DROP FACILITY

PROJECT FJRP052994 PROJECT FJRP199040

Addendum #2

Issue Date: June 4, 2021

COMBINED BID PACKAGE PROJECT MANUAL

SEAL

050568

ENGINEE

R

050024

Frankfurt-Short-Bruza Architects Engineers Planners document1 Page 1 of 1 5801 Broadway Extension, Suite 500, Oklahoma City, Oklahoma 73118-7436

Telephone (405) 840-2931 Facsimile (405) 842-7750 Website www.fsb-ae.com

11949

NORTH CAROLINA ANG FJRP052994 SMALL AIR TERMINAL

CHARLOTTE, NC FJRP199040 AIR DROP FACILITY

Addendum #2 Table of Contents June 4, 2021 TOC - 2

TABLE OF CONTENTS

VOLUME 1 OF 4

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

AS PROVIDED BY THE NORTH CAROLINA AIR NATIONAL GUARD

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 011000 – SUMMARY OF THE WORK

SECTION 011416 – COORDINATON WITH NORTH CAROLINA AIR NATIONAL GUARD

SECTION 013100 – PROJECT MANAGEMENT AND COORDINATION

SECTION 013200 – CONSTRUCTION PROGRESS DOCUMENTATION

SECTION 013300 – SUBMITTAL PROCEDURES

SECTION 013329 – SUSTAINABILITY REPORTING

SECTION 014000 – QUALITY CONTROL

SECTION 014200 – REFERENCES

SECTION 015000 – TEMPORARY FACILITIES AND CONTROLS

SECTION 015930 – SECURITY REGULATIONS

SECTION 015950 – SAFETY AND HEALTH

SECTION 015960 – HAZARDOUS MATERIAL STORAGE AND DISTRIBUTION

SECTION 016000 – PRODUCT REQUIREMENTS

SECTION 017000 – EXECUTION REQUIREMENTS

SECTION 017329 – CUTTING AND PATCHING

SECTION 017419 – CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

SECTION 017700 – CLOSEOUT PROCEDURES

SECTION 017820 – OPERATION AND MAINTENANCE DATA

SECTION 017839 – PROJECT RECORD DOCUMENTS

SECTION 018200 – DEMONSTRATION AND TRAINING

DIVISION 02 - EXISTING CONDITIONS

SECTION 024119 - SELECTIVE DEMOLITION AND REMEDIATION

DIVISION 03 - CONCRETE

SECTION 030130 - MAINTENANCE OF CAST-IN-PLACE CONCRETE

SECTION 033000 - CAST-IN-PLACE CONCRETE

DIVISION 04 - MASONRY

SECTION 042000 - UNIT MASONRY

SECTION 042113 - THIN BRICK MASONRY

SECTION 047315 - MANUFACTURED THIN STONE MASONRY

SECTION 047200 – CAST STONE MASONRY

DIVISION 05 - METALS

SECTION 051200 - STRUCTURAL STEEL FRAMING

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SECTION 052100 – STEEL JOIST FRAMING

SECTION 053100 - STEEL DECKING

SECTION 054000 – COLD FORMED METAL FRAMING

SECTION 055000 - METAL FABRICATIONS

SECTION 055113 - METAL PAN STAIRS

SECTION 055133 - ALTERNATING TREAD STEEL STAIRS

SECTION 055213 - PIPE AND TUBE RAILINGS

DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES

SECTION 061000 - ROUGH CARPENTRY

SECTION 061600 - SHEATHING

SECTION 064116 - PLASTIC-LAMINATE-CLAD ARCHITECTURAL CABINETS

SECTION 068300 - COMPOSITE PANELING

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

SECTION 072100 - THERMAL INSULATION

SECTION 072119 - FOAMED-IN-PLACE INSULATION

SECTION 072726 - FLUID-APPLIED AIR AND WATER RESISTIVE BARRIER SYSTEM

SECTION 074113.16 – STANDING SEAM METAL ROOF PANLS

SECTION 074213.19 - INSULATED METAL WALL PANELS

SECTION 075419 - POLYVINYL-CHLORIDE (PVC) ROOFING

SECTION 076200 - SHEET METAL FLASHING AND TRIM

SECTION 077200 - ROOF ACCESSORIES

SECTION 077253 – SNOW GUARDS

SECTION 078413 - PENETRATION FIRESTOPPING

SECTION 078446 - FIRE-RESISTIVE JOINT SYSTEMS

SECTION 079200 - JOINT SEALANTS

SECTION 079500 – EXPANSION CONTROL

VOLUME 2 OF 4

DIVISION 08 - OPENINGS

SECTION 081113 - HOLLOW METAL DOORS AND FRAMES

SECTION 081416 - FLUSH WOOD DOORS

SECTION 083113 - ACCESS DOORS AND FRAMES

SECTION 083313 - COILING COUNTER DOORS

SECTION 084113 - ALUMINUM-FRAMED ENTRANCES AND WINDOWS

SECTION 084523 – FIBERGLASS SANDWICH-PANEL ASSEMBLIES

SECTION 086200 – UNIT SKYLIGHTS

SECTION 087100 - DOOR HARDWARE

SECTION 088000 - GLAZING

DIVISION 09 - FINISHES

SECTION 090690 - COLOR SCHEDULE

SECTION 092216 - NON-STRUCTURAL METAL FRAMING

SECTION 092900 - GYPSUM BOARD

SECTION 093013 - CERAMIC TILING

Addendum #2 Table of Contents June 4, 2021 TOC - 4

SECTION 095113 - ACOUSTICAL PANEL CEILINGS

SECTION 096513 - RESILIENT BASE AND ACCESSORIES

SECTION 096519 - RESILIENT TILE FLOORING

SECTION 096723.15 – FUEL RESISTIVE RESINOUS FLOORING

SECTION 096813 - TILE CARPETING

SECTION 097200 - DRY ERASE WALLCOVERING

SECTION 097800 - FIBERGLASS REINFORCED PLASTIC PANELS

SECTION 099113 - EXTERIOR PAINTING

SECTION 099123 - INTERIOR PAINTING

DIVISION 10 - SPECIALTIES

SECTION 101423 - PANEL SIGNAGE

SECTION 102113.19 - PLASTIC TOILET COMPARTMENTS

SECTION 102213 - WIRE MESH PARTITIONS

SECTION 102239 - RETRACTABLE WALL SYSTEM

SECTION 102600 - WALL AND DOOR PROTECTION

SECTION 102800 - TOILET, BATH, AND LAUNDRY ACCESSORIES

SECTION 104413 - FIRE EXTINGUISHER CABINETS

SECTION 104416 - FIRE EXTINGUISHERS

SECTION 105113 - METAL LOCKERS

SECTION 107316 - MANUFACTURED CANOPIES

DIVISION 11 - EQUIPMENT

SECTION 111323 - BAGGAGE SCALE EQUIPMENT

SECTION 115213 - PROJECTION SCREENS

DIVISION 12 - FURNISHINGS

SECTION 122413 - ROLLER WINDOW SHADES

SECTION 123661.16 - SOLID SURFACING COUNTERTOPS

SECTION 124813 - ENTRANCE FLOOR MATS AND FRAMES

DIVISION 13 - SPECIAL CONSTRUCTION

SECTION 133419 - METAL BUILDING SYSTEMS

DIVISION 14 - CONVEYING EQUIPMENT

SECTION 142123 - ELECTRIC TRACTION PASSENGER ELEVATORS

DIVISION 21 - FIRE SUPPRESSION

SECTION 211100 - FACILITY FIRE-SUPPRESSION WATER-SERVICE PIPING

SECTION 211313 - WET PIPE SPRINKLER SYSTEMS

SECTION 213113 - ELECTRIC-DRIVE, CENTRIFUGAL FIRE PUMPS

SECTION 213119 - CONTROLLERS FOR FIRE-PUMP DRIVERS

SECTION 213413 - PRESSURE-MAINTENANCE PUMPS

DIVISION 22 - PLUMBING

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SECTION 220513 - COMMON MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT

SECTION 220517 - SLEEVES AND SLEEVE SEALS FOR PLUMBING PIPING

SECTION 220518 - ESCUTCHEONS FOR PLUMBING PIPING

SECTION 220519 - METERS AND GAGES FOR PLUMBING PIPING

SECTION 220523.12 - BALL VALVES FOR PLUMBING PIPING

SECTION 220523.14 - CHECK VALVES FOR PLUMBING PIPING

SECTION 220529 - HANGERS AND SUPPORTS FOR PLUMBING PIPING AND EQUIPMENT

SECTION 220533 - HEAT TRACING FOR PLUMBING PIPING

SECTION 220548.13 - VIBRATION CONTROLS FOR PLUMBING PIPING AND EQUIPMENT

SECTION 220553 - IDENTIFICATION FOR PLUMBING PIPING AND EQUIPMENT

SECTION 220716 - PLUMBING EQUIPMENT INSULATION

SECTION 220719 - PLUMBING PIPING INSULATION

SECTION 221116 - DOMESTIC WATER PIPING

SECTION 221119 - DOMESTIC WATER PIPING SPECIALTIES

SECTION 221123.13 - DOMESTIC-WATER PACKAGED BOOSTER PUMPS

SECTION 221123.21 - INLINE, DOMESTIC-WATER PUMPS

SECTION 221313 - FACILITY SANITARY SEWERS

SECTION 221316 - SANITARY WASTE AND VENT PIPING

SECTION 221319 - SANITARY WASTE PIPING SPECIALTIES

SECTION 221319.13 - SANITARY DRAINS

SECTION 221413 - FACILITY STORM DRAINAGE PIPING

SECTION 221423 - STORM DRAINAGE PIPING SPECIALTIES

SECTION 221429 - SUMP PUMPS

SECTION 221513 - GENERAL-SERVICE COMPRESSED-AIR PIPING

SECTION 221519 - GENERAL-SERVICE PACKAGED AIR COMPRESSORS AND RECEIVERS

SECTION 223400 - FUEL-FIRED, DOMESTIC-WATER HEATERS

SECTION 224213.13 - COMMERCIAL WATER CLOSETS

SECTION 224213.16 - COMMERCIAL URINALS

SECTION 224216.13 - COMMERCIAL LAVATORIES

SECTION 224216.16 - COMMERCIAL SINKS

SECTION 224223 - COMMERCIAL SHOWERS

SECTION 224713 - DRINKING FOUNTAINS

VOLUME 3 OF 4

DIVISION 23 - HEATING, VENTILATING, AND AIR-CONDITIONING (HVAC)

SECTION 230513 - COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

SECTION 230518 - ESCUTCHEONS FOR HVAC PIPING

SECTION 230523.12 - BALL VALVES FOR HVAC PIPING

SECTION 230523.14 - CHECK VALVES FOR HVAC PIPING

SECTION 230529 - HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

SECTION 230548.13 - VIBRATION CONTROLS FOR HVAC

SECTION 230553 - IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

SECTION 230593 - TESTING, ADJUSTING, AND BALANCING FOR HVAC

SECTION 230713 - DUCT INSULATION

SECTION 230719 - HVAC PIPING INSULATION

SECTION 230923 - DIRECT DIGITAL CONTROL (DDC) SYSTEM FOR HVAC

SECTION 231123 – FACILITY NATURAL-GAS PIPING

SECTION 230923.11 - CONTROL VALVES

SECTION 230923.12 - CONTROL DAMPERS

SECTION 230923.14 - FLOW INSTRUMENTS

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SECTION 230923.16 - GAS INSTRUMENTS

SECTION 230923.23 - PRESSURE INSTRUMENTS

SECTION 230923.27 - TEMPERATURE INSTRUMENTS

SECTION 231123 - FACILITY NATURAL-GAS PIPING

SECTION 232113 - HYDRONIC PIPING

SECTION 232116 - HYDRONIC PIPING SPECIALTIES

SECTION 232123 - HYDRONIC PUMPS

SECTION 232300 - REFRIGERANT PIPING

SECTION 232513 - WATER TREATMENT FOR CLOSED-LOOP HYDRONIC SYSTEMS

SECTION 233113 - METAL DUCTS

SECTION 233300 - AIR DUCT ACCESSORIES

SECTION 233346 - FLEXIBLE DUCTS

SECTION 233416 - CENTRIFUGAL HVAC FANS

SECTION 233423 - HVAC POWER VENTILATORS

SECTION 233436 – AIR CIRCULATION FANS

SECTION 233600 - AIR TERMINAL UNITS

SECTION 233713.23 – AIR REGISTERS AND GRILLES

SECTION 235123 - GAS VENTS

SECTION 235216 - CONDENSING BOILERS

SECTION 235523.13 - LOW-INTENSITY, GAS-FIRED, RADIANT HEATERS

SECTION 237313.16 - INDOOR, SEMI CUSTOM AIR HANDLING UNITS

SECTION 237423.13 - PACKAGED, DIRECT-FIRED, OUTDOOR, HEATING-ONLY MAKEUP-AIR UNITS

SECTION 238126 - SPLIT-SYSTEM AIR-CONDITIONERS

SECTION 238239.16 - PROPELLER UNIT HEATERS

DIVISION 25 - INTEGRATED AUTOMATION

NOT APPLICABLE

DIVISION 26 - ELECTRICAL

SECTION 260513 – MEDIUM VOLTAGE CABLES

SECTION 260519 - LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

SECTION 260523 - CONTROL-VOLTAGE ELECTRICAL POWER CABLES

SECTION 260526 - GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

SECTION 260529 - HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

SECTION 260533 - RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

SECTION 260543 – UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS

SECTION 260544 - SLEEVES AND SLEEVE SEALS FOR ELECTRICAL RACEWAYS AND CABLING

SECTION 260553 - IDENTIFICATION FOR ELECTRICAL SYSTEMS

SECTION 260573.13 - SHORT-CIRCUIT STUDIES

SECTION 260573.16 - COORDINATION STUDIES

SECTION 260573.19 - ARC-FLASH HAZARD ANALYSIS

SECTION 260923 - LIGHTING CONTROL DEVICES

SECTION 260943.23 – RELAY BASED LIGHTING CONTROLS

SECTION 261213 – LIQUID-FILLED MEDIUM VOLTAGE TRANSFORMERS

SECTION 262416 – PANELBOARDS

SECTION 262713.10 30 - ELECTRIC METERS

SECTION 262726 - WIRING DEVICES

SECTION 262913.03 - MANUAL AND MAGNETIC MOTOR CONTROLLERS

SECTION 262923 - VARIABLE-FREQUENCY MOTOR CONTROLLERS

SECTION 264113 - LIGHTNING PROTECTION FOR STRUCTURES

SECTION 264313 - SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER CIRCUITS

Addendum #2 Table of Contents June 4, 2021 TOC - 7

SECTION 265100 - INTERIOR LIGHTING

SECTION 265119 - LED INTERIOR LIGHTING

SECTION 265619 - EXTERIOR LIGHTING

VOLUME 4 OF 4

DIVISION 27 - COMMUNICATIONS

SECTION 270526 - GROUNDING AND BONDING FOR COMMUNICATIONS

SECTION 270528 - PATHWAYS FOR COMMUNICATIONS SYSTEMS

SECTION 270536 - CABLE TRAYS FOR COMMUNICATIONS SYSTEMS

SECTION 270544 - SLEEVES AND SLEEVE SEALS FOR COMMUNICATIONS PATHWAYS AND CABLING

SECTION 271100 - COMMUNICATIONS EQUIPMENT ROOM FITTINGS

SECTION 271513 - COMMUNICATIONS COPPER HORIZONTAL CABLING

SECTION 275116 - PUBLIC ADDRESS SYSTEMS

SECTION 275313 - CLOCK SYSTEMS

DIVISION 28 - ELECTRONIC SAFETY AND SECURITY

SECTION 283176 - FIRE ALARM AND MASS NOTIFICATION SYSTEM

DIVISION 31 - EARTHWORK

SECTION 310100 – SUBSURFACE EXPLORATION

SECTION 311000 – SITE CLEARING

SECTION 312000 – EARTH MOVING

SECTION 312319 – DEWATERING

SECTION 316600 - HELICAL PIERS

DIVISION 32 - EXTERIOR IMPROVEMENTS

SECTION 321200 – PAVING AND SURFACING

SECTION 321313 – CONCRETE PAVING

SECTION 323113 - FENCING

SECTION 329113 - SOIL PREPARATION

SECTION 329200 - TURF AND GRASSES

SECTION 329300 - PLANTS

DIVISION 33 - UTILITIES

SECTION 330505 – WATER SANITARY AND DRAINAGE SITE PIPING

DIVISION 34 - TRANSPORTATION

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

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DIVISION 40 - PROCESS INTEGRATION

DIVISION 41 - MATERIAL PROCESSING AND HANDLING EQUIPMENT

SECTION 412213.15 - BRIDGE CRANES, OVERHEAD ELECTRIC, UNDER RUNNING

SECTION 4122223.13 – PARACHUTE LIFT SYSTEM

DIVISION 42 - PROCESS HEATING, COOLING, AND DRYING EQUIPMENT

DIVISION 43 – 99

SECTION 270526 - GROUNDING AND BONDING FOR COMMUNICATIONS SYSTEMS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Grounding conductors.

2. Grounding connectors.

3. Grounding busbars.

4. Grounding labeling.

1.3 DEFINITIONS

A. BCT: Bonding conductor for telecommunications.

B. TGB: Telecommunications grounding busbar.

C. TMGB: Telecommunications main grounding busbar.

D. Service Provider: The operator of a service that provides telecommunications transmission delivered over access provider facilities.

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product.

1.5 INFORMATIONAL SUBMITTALS

A. As-Built Data: Plans showing as-built locations of grounding and bonding infrastructure, including the following:

1. Ground and roof rings.

2. BCT, TMGB, TGBs, and routing of their bonding conductors.

Addendum #1 Issued March 3, 2021

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FJRP052994 SMALL AIR TERMINAL

FJRP199040 AIR DROP FACILITY

B. Qualification Data: For Installer, installation supervisor, and field inspector.

C. Field quality-control reports.

1.6 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For grounding to include in emergency, operation, and maintenance manuals.

1.7 QUALITY ASSURANCE

A. Installer Qualifications: Cabling Installer must have personnel certified by BICSI on staff.

1. Installation Supervision: Installation shall be under the direct supervision of ITS Technician, who shall be present at all times when Work of this Section is performed at Project site.

2. Field Inspector: Currently registered by BICSI as a designer RCDD to perform the on-site inspection.

PART 2 - PRODUCTS

2.1 SYSTEM DESCRIPTION

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

B. Comply with UL 467 for grounding and bonding materials and equipment.

C. Comply with TIA-607-B.

2.2 CONDUCTORS

A. Comply with UL 486A-486B.

B. Insulated Conductors: Stranded copper wire, green or green with yellow stripe insulation, insulated for 600 V, and complying with UL 83.

1. Ground wire for custom-length equipment ground jumpers shall be No. 6 AWG, 19-strand, UL-listed, Type THHN wire.

2. Cable Tray Equipment Grounding Wire: No. 8 No. 6 AWG.

3. Lead Content: Less than 300 parts per million.

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C. Cable Tray Grounding Jumper:

1. Not smaller than No. 6 AWG and not longer than 12 inches. If jumper is a wire, it shall have a crimped grounding lug with two holes and long barrel for two crimps. If jumper is a flexible braid, it shall have a one-hole ferrule. Attach with grounding screw or connector provided by cable tray manufacturer.

D. Bare Copper Conductors:

1. Solid Conductors: ASTM B 3.

2. Stranded Conductors: ASTM B 8.

3. Tinned Conductors: ASTM B 33.

4. Bonding Cable: 28 kcmils, 14 strands of No. 17 AWG conductor, and 1/4 inch in diameter.

5. Bonding Conductor: No. 4 or No. 6 AWG, stranded conductor.

6. Bonding Jumper: Tinned-copper tape, braided conductors terminated with two-hole copper ferrules; 1-5/8 inches wide and 1/16 inch thick.

2.3 CONNECTORS

A. Irreversible connectors listed for the purpose. Listed by an NRTL as complying with NFPA 70 for specific types, sizes, and combinations of conductors and other items connected. Comply with UL 486A-486B.

B. Compression Wire Connectors: Crimp-and-compress connectors that bond to the conductor when the connector is compressed around the conductor. Comply with UL 467.

1. Electroplated tinned copper, C and H shaped.

C. Busbar Connectors: Cast silicon bronze, solderless compression-type, mechanical connector;

with a long barrel and two holes spaced on 5/8- or 1-inch centers for a two-bolt connection to the busbar.

2.4 GROUNDING BUSBARS

A. TMGB: Predrilled, wall-mounted, rectangular bars of hard-drawn solid copper, 1/4 by 4 inches in cross section, length as indicated on Drawings. The busbar shall be NRTL listed for use as TMGB and shall comply with TIA-607-B.

1. Predrilling shall be with holes for use with lugs specified in this Section.

2. Mounting Hardware: Stand-off brackets that provide a 4-inch clearance to access the rear of the busbar. Brackets and bolts shall be stainless steel.

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3. Stand-off insulators for mounting shall be Lexan or PVC. Comply with UL 891 for use in 600-V switchboards, impulse tested at 5000 V.

B. TGB: Predrilled rectangular bars of hard-drawn solid copper, 1/4 by 2 inches in cross section, length as indicated on Drawings. The busbar shall be for wall mounting, shall be NRTL listed as complying with UL 467, and shall comply with TIA-607-B.

1. Predrilling shall be with holes for use with lugs specified in this Section.

2. Mounting Hardware: Stand-off brackets that provide at least a 2-inch clearance to access the rear of the busbar. Brackets and bolts shall be stainless steel.

3. Stand-off insulators for mounting shall be Lexan or PVC. Comply with UL 891 for use in

600-V switchboards, impulse tested at 5000 V.

2.5 IDENTIFICATION

A. Comply with requirements for identification products in Section 270553 "Identification for Communications Systems."

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine the ac grounding electrode system and equipment grounding for compliance with requirements for maximum ground-resistance level and other conditions affecting performance of grounding and bonding of the electrical system.

B. Inspect the test results of the ac grounding system measured at the point of BCT connection.

C. Prepare written report, endorsed by Installer, listing conditions detrimental to performance of the Work.

D. Proceed with connection of the BCT only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Bonding shall include the ac utility power service entrance, the communications cable entrance, and the grounding electrode system. The bonding of these elements shall form a loop so that each element is connected to at least two others.

B. Comply with NECA 1.

C. Comply with TIA-607-B.

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3.3 APPLICATION

A. Conductors: Install solid conductor for No. 8 AWG and smaller and stranded conductors for No. 6 AWG and larger unless otherwise indicated.

1. The bonding conductors between the TGB and structural steel of steel-frame buildings shall not be smaller than No. 6 AWG.

2. The bonding conductors between the TMGB and structural steel of steel-frame buildings shall not be smaller than No. 6 AWG.

B. Conductor Terminations and Connections:

1. Pipe and Equipment Grounding Conductor Terminations: Bolted connectors.

2. Underground Connections: Welded connectors except at test wells and as otherwise indicated.

3. Connections to Ground Rods at Test Wells: Bolted connectors.

4. Connections to Structural Steel: Welded connectors.

C. Conductor Support:

1. Secure grounding and bonding conductors at intervals of not less than 36 inches.

D. Grounding and Bonding Conductors:

1. Install in the straightest and shortest route between the origination and termination point, and no longer than required. The bend radius shall not be smaller than eight times the diameter of the conductor. No one bend may exceed 90 degrees.

2. Install without splices.

3. Support at not more than 36-inch intervals.

4. Install grounding and bonding conductors in 3/4-inch PVC conduit until conduit enters a telecommunications room. The grounding and bonding conductor pathway through a plenum shall be in EMT. Conductors shall not be installed in EMT unless otherwise indicated.

a. If a grounding and bonding conductor is installed in ferrous metallic conduit, bond the conductor to the conduit using a grounding bushing that complies with requirements in Section 270528 "Pathways for Communications Systems," and bond both ends of the conduit to a TGB.

3.4 GROUNDING ELECTRODE SYSTEM

A. The BCT between the TMGB and the ac service equipment ground shall not be smaller than No. 3/0 AWG.

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3.5 GROUNDING BUSBARS

A. Indicate locations of grounding busbars on Drawings. Install busbars horizontally, on insulated spacers 2 inches minimum from wall, 12 inches above finished floor unless otherwise indicated.

B. Where indicated on both sides of doorways, route bus up to top of door frame, across top of doorway, and down; connect to horizontal bus.

3.6 CONNECTIONS

A. Bond metallic equipment in a telecommunications equipment room to the grounding busbar in that room, using equipment grounding conductors not smaller than No. 6 AWG.

B. Stacking of conductors under a single bolt is not permitted when connecting to busbars.

C. Assemble the wire connector to the conductor, complying with manufacturer's written instructions and as follows:

1. Use crimping tool and the die specific to the connector.

2. Pretwist the conductor.

3. Apply an antioxidant compound to all bolted and compression connections.

D. Primary Protector: Bond to the TMGB with insulated bonding conductor.

E. Interconnections: Interconnect all TGBs with the TMGB with the telecommunications backbone conductor. If more than one TMGB is installed, interconnect TMGBs using the grounding equalizer conductor. The telecommunications backbone conductor and grounding equalizer conductor size shall not be less than 2 kcmils/linear foot of conductor length, up to a maximum size of No. 3/0 AWG unless otherwise indicated.

F. Telecommunications Enclosures and Equipment Racks: Bond metallic components of enclosures to the telecommunications bonding and grounding system. Install top-mounted rack grounding busbar unless the enclosure and rack are manufactured with the busbar. Bond the equipment grounding busbar to the TGB No. 2 AWG bonding conductors.

G. Structural Steel: Where the structural steel of a steel frame building is readily accessible within the room or space, bond each TGB and TMGB to the vertical steel of the building frame.

H. Electrical Power Panelboards: Where an electrical panelboard for telecommunications equipment is located in the same room or space, bond each TGB to the ground bar of the panelboard.

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I. Shielded Cable: Bond the shield of shielded cable to the TGB in communications rooms and spaces. Comply with TIA-568-C.1 and TIA-568-C.2 when grounding shielded balanced twisted-pair cables.

J. Rack- and Cabinet-Mounted Equipment: Bond powered equipment chassis to the cabinet or rack grounding bar. Power connection shall comply with NFPA 70; the equipment grounding conductor in the power cord of cord- and plug-connected equipment shall be considered as a supplement to bonding requirements in this Section.

K. Access Floors: Bond all metal parts of access floors to the TGB.

L. Towers and Antennas:

1. Special Requirements for Roof-Mounted Towers:

a. Roof Ring: Meet requirements for the ground ring except the conductors shall comply with requirements in Section 264113 "Lightning Protection for Structures."

b. Bond tower base footings steel, the TGB in the equipment room, and antenna support guys to the roof ring.

c. Connect roof ring to the perimeter conductors of the lightning protection system.

2. Waveguides and Coaxial Cable:

a. Bond cable shields at the point of entry into the building to the TGB and to the cable entrance plate, using No. 2 AWG bonding conductors.

b. Bond coaxial cable surge arrester to the ground or roof ring using bonding conductor size recommended by surge-arrester manufacturer.

3.7 GROUNDING UNDERGROUND DISTRIBUTION SYSTEM COMPONENTS

A. Duct-Bank Grounding Conductor: Bury 12 inches above duct bank when indicated as part of duct-bank installation.

B. Comply with IEEE C2 grounding requirements.

C. Grounding Manholes and Handholes: Install a driven ground rod through manhole or handhole floor, close to wall, and set rod depth so 4 inches extends above finished floor. If necessary, install ground rod before manhole is placed and provide No. 1/0 AWG bare, tinned-copper conductor from ground rod into manhole through a waterproof sleeve in manhole wall. Protect ground rods passing through concrete floor with a double wrapping of pressure-sensitive insulating tape or heat-shrunk insulating sleeve from 2 inches above to 6 inches below concrete.

Seal floor opening with waterproof, nonshrink grout.

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D. Grounding Connections to Manhole Components: Bond exposed-metal parts such as inserts, cable racks, pulling irons, ladders, and cable shields within each manhole or handhole, to ground rod or grounding conductor. Make connections with No. 4 AWG minimum, bonding conductor. Train conductors level or plumb around corners and fasten to manhole walls.

Connect grounding conductors to cable armor and cable shields according to written instructions by manufacturer of splicing and termination kits.

3.8 IDENTIFICATION

A. Labels shall be preprinted or computer-printed type.

1. Label TMGB(s) with "fs-TMGB," where "fs" is the telecommunications space identifier for the space containing the TMGB.

2. Label TGB(s) with "fs-TGB," where "fs" is the telecommunications space identifier for the space containing the TGB.

3. Label the BCT and each telecommunications backbone conductor at its attachment point:

"WARNING! TELECOMMUNICATIONS BONDING CONDUCTOR. DO NOT

REMOVE OR DISCONNECT!"

3.9 FIELD QUALITY CONTROL

A. Testing Agency: Engage a qualified testing agency to perform tests and inspections.

B. Perform tests and inspections.

C. Tests and Inspections:

1. Inspect physical and mechanical condition. Verify tightness of accessible, bolted, electrical connections with a calibrated torque wrench according to manufacturer's written instructions.

2. Test the bonding connections of the system using an ac earth ground-resistance tester, taking two-point bonding measurements in each telecommunications equipment room containing a TMGB and a TGB and using the process recommended by BICSI TDMM.

Conduct tests with the facility in operation.

a. Measure the resistance between the busbar and the nearest available grounding electrode. The maximum acceptable value of this bonding resistance is 100 milliohms.

3. Test for ground loop currents using a digital clamp-on ammeter, with a full-scale of not more than 10 A, displaying current in increments of 0.01 A at an accuracy of plus/minus

2.0 percent.

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a. With the grounding infrastructure completed and the communications system electronics operating, measure the current in every conductor connected to the TMGB. Maximum acceptable ac current level is 1 A.

D. Excessive Ground Resistance: If resistance to ground at the BCT exceeds 5 ohms, notify Architect promptly and include recommendations to reduce ground resistance.

E. Grounding system will be considered defective if it does not pass tests and inspections.

F. Prepare test and inspection reports.

END OF SECTION 270526

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SECTION 270528 - PATHWAYS FOR COMMUNICATIONS SYSTEMS

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Metal conduits and fittings.

2. Hooks.

1.3 DEFINITIONS

A. ARC: Aluminum rigid conduit.

B. GRC: Galvanized rigid conduit.

C. IMC: Intermediate metal conduit.

D. RTRC: Reinforced thermosetting resin conduit.

1.4 ACTION SUBMITTALS

A. Product data for the following:

1. Surface pathways

2. Wireways and fittings.

3. Tele-power poles.

4. Boxes, enclosures, and cabinets.

5. Underground handholes and boxes.

B. Shop Drawings: For custom enclosures and cabinets. Include plans, elevations, sections, and attachment details.

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1.5 INFORMATIONAL SUBMITTALS

A. Coordination Drawings: Pathway routing plans, drawn to scale, on which the following items are shown and coordinated with each other, using input from installers of items involved:

1. Structural members in paths of pathway groups with common supports.

2. HVAC and plumbing items and architectural features in paths of conduit groups with common supports.

3. Underground ducts, piping, and structures in location of underground enclosures and handholes.

B. Source quality-control reports.

PART 2 - PRODUCTS

2.1 METAL CONDUITS AND FITTINGS

A. Description: Metal raceway of circular cross section with manufacturer-fabricated fittings.

B. General Requirements for Metal Conduits and Fittings:

1. Listed and labeled as defined in NFPA 70, by a nationally recognized testing laboratory, and marked for intended location and application.

2. Comply with TIA-569-D.

C. GRC: Comply with ANSI C80.1 and UL 6.

D. ARC: Comply with ANSI C80.5 and UL 6A.

E. IMC: Comply with ANSI C80.6 and UL 1242.

F. EMT: Comply with ANSI C80.3 and UL 797.

G. Fittings for Metal Conduit: Comply with NEMA FB 1 and UL 514B.

1. Fittings for EMT:

a. Material: Steel.

b. Type: compression.

2. Expansion Fittings: PVC or steel to match conduit type, complying with UL-467, rated for environmental conditions where installed, and including flexible external bonding jumper.

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2.2 HOOKS

A. Description: Prefabricated sheet metal cable supports for telecommunications cable.

B. Listed and labeled as defined in NFPA 70, by an NRTL, and marked for intended location and application.

C. Comply with TIA-569-D.

D. Galvanized steel.

E. J U shape.

PART 3 - EXECUTION

3.1 PATHWAY APPLICATION

A. Outdoors: Apply pathway products as specified below unless otherwise indicated:

1. Exposed Conduit: IMC.

2. Concealed Conduit, Aboveground: GRC IMC EMT.

3. Boxes and Enclosures, Aboveground: NEMA 250, Type 3R.

B. Indoors: Apply pathway products as specified below unless otherwise indicated:

1. Exposed, Not Subject to Physical Damage: EMT.

2. Exposed, Not Subject to Severe Physical Damage: EMT.

3. Exposed and Subject to Severe Physical Damage: GRC IMC. Pathway locations include the following:

a. Loading dock.

b. Corridors used for traffic of mechanized carts, forklifts, and pallet-handling units.

c. Mechanical rooms.

d. Gymnasiums

4. Concealed in Ceilings and Interior Walls and Partitions: EMT.

5. Damp or Wet Locations: GRC IMC.

6. Pathways for Optical-Fiber or Communications Cable in Spaces Used for Environmental

Air: EMT.

7. Pathways for Optical-Fiber or Communications-Cable Risers in Vertical Shafts: EMT.

8. Pathways for Concealed General-Purpose Distribution of Optical-Fiber or

Communications Cable: EMT.

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9. Boxes and Enclosures: NEMA 250, Type 1, except use NEMA 250, Type 4 stainless steel units in institutional and commercial kitchens and damp or wet locations.

C. Minimum Pathway Size: 3/4-inch trade size for copper and aluminum cables, and 1 inch for optical-fiber cables.

D. Pathway Fittings: Compatible with pathways and suitable for use and location.

1. Rigid and Intermediate Steel Conduit: Use threaded rigid steel conduit fittings unless otherwise indicated. Comply with NEMA FB 2.10.

2. PVC Externally Coated, Rigid Steel Conduits: Use only fittings listed for use with this type of conduit. Patch and seal all joints, nicks, and scrapes in PVC coating after installing conduits and fittings. Use sealant recommended by fitting manufacturer and apply in thickness and number of coats recommended by manufacturer.

3. EMT: Use compression, steel fittings. Comply with NEMA FB 2.10.

E. Do not install aluminum conduits, boxes, or fittings in contact with concrete or earth.

F. Install surface pathways only where indicated on Drawings.

G. Do not install nonmetallic conduit where ambient temperature exceeds 120 deg F.

3.2 INSTALLATION

A. Comply with the following standards for installation requirements except where requirements on Drawings or in this Section are stricter:

1. NECA 1.

2. NECA/BICSI 568.

3. TIA-569-D.

4. NECA 101

5. NECA 105.

B. Comply with NFPA 70 limitations for types of pathways allowed in specific occupancies and number of floors.

C. Comply with requirements in Section 270544 "Sleeves and Sleeve Seals for Communications Pathways and Cabling" for sleeves and sleeve seals for communications.

D. Keep pathways at least 6 inches away from parallel runs of flues and steam or hot-water pipes.

Install horizontal pathway runs above water and steam piping.

E. Complete pathway installation before starting conductor installation.

F. Arrange stub-ups so curved portions of bends are not visible above finished slab.

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G. Install no more than the equivalent of two 90-degree bends in any pathway run. Support within 12 inches of changes in direction. Utilize long radius ells for all optical-fiber cables.

H. Conceal rigid conduit within finished walls, ceilings, and floors unless otherwise indicated.

Install conduits parallel or perpendicular to building lines.

I. Support conduit within 12 inches of enclosures to which attached.

J. Stub-ups to Above Recessed Ceilings:

1. Use EMT, IMC, or RMC for pathways.

2. Use a conduit bushing or insulated fitting to terminate stub-ups not terminated in hubs or in an enclosure.

K. Threaded Conduit Joints, Exposed to Wet, Damp, Corrosive, or Outdoor Conditions: Apply listed compound to threads of pathway and fittings before making up joints. Follow compound manufacturer's written instructions.

L. Terminate threaded conduits into threaded hubs or with locknuts on inside and outside of boxes or cabinets. Install insulated bushings on conduits terminated with locknuts.

M. Install pathways square to the enclosure and terminate at enclosures with locknuts. Install locknuts hand tight plus one additional quarter-turn.

N. Do not rely on locknuts to penetrate nonconductive coatings on enclosures. Remove coatings in the locknut area prior to assembling conduit to enclosure, to assure a continuous ground path.

O. Cut conduit perpendicular to the length. For conduits of 2-inch trade size and larger, use roll cutter or a guide to ensure cut is straight and perpendicular to the length.

P. Install pull wires in empty pathways. Use polypropylene or monofilament plastic line with not less than 200-lb tensile strength. Leave at least 12 inches of slack at each end of pull wire.

Secure pull wire, so it cannot fall into conduit. Cap pathways designated as spare alongside pathways in use.

Q. Surface Pathways:

1. Install surface pathway for surface telecommunications outlet boxes only where indicated on Drawings.

2. Install surface pathway with a minimum 2-inch radius control at bend points.

3. Secure surface pathway with screws or other anchor-type devices at intervals not exceeding 48 inches and with no less than two supports per straight pathway section.

Support surface pathway according to manufacturer's written instructions. Tape and glue are not acceptable support methods.

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R. Pathways for Optical-Fiber and Communications Cable: Install pathways, metal and nonmetallic, rigid and flexible, as follows:

1. 3/4-Inch Trade Size and Smaller: Install pathways in maximum lengths of 50 feet.

2. 1-Inch Trade Size and Larger: Install pathways in maximum lengths of 75 feet.

3. Install with a maximum of two 90-degree bends or equivalent for each length of pathway unless Drawings show stricter requirements. Separate lengths with pull or junction boxes or terminations at distribution frames or cabinets where necessary to comply with these requirements.

S. Install pathway-sealing fittings at accessible locations according to NFPA 70 and fill them with listed sealing compound. For concealed pathways, install each fitting in a flush steel box with a blank cover plate having a finish similar to that of adjacent plates or surfaces. Install pathway-sealing fittings according to NFPA 70.

T. Install devices to seal pathway interiors at accessible locations. Locate seals, so no fittings or boxes are between the seal and the following changes of environments. Seal the interior of all pathways at the following points:

1. Where conduits pass from warm to cold locations, such as boundaries of refrigerated spaces.

2. Where an underground service pathway enters a building or structure.

3. Where otherwise required by NFPA 70.

U. Comply with manufacturer's written instructions for solvent welding PVC conduit and fittings.

V. Expansion-Joint Fittings:

1. Install in each run of aboveground RNC that is located where environmental temperature change may exceed 30 deg F, and that has straight-run length that exceeds 25 feet. Install in each run of aboveground RMC and EMT that is located where environmental temperature change may exceed 100 deg F, and that has straight-run length that exceeds 100 feet.

2. Install type and quantity of fittings that accommodate temperature change listed for each of the following locations:

a. Outdoor Locations Not Exposed to Direct Sunlight: 125 deg F temperature change.

b. Outdoor Locations Exposed to Direct Sunlight: 155 deg F temperature change.

c. Indoor Spaces Connected with Outdoors without Physical Separation: 125 deg F temperature change.

d. Attics: 135 deg F temperature change.

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3. Install fitting(s) that provide expansion and contraction for at least 0.00041 inch per foot of length of straight run per deg F of temperature change for PVC conduits. Install fitting(s) that provide expansion and contraction for at least 0.000078 inch per foot of length of straight run per deg F of temperature change for metal conduits.

4. Install expansion fittings at all locations where conduits cross building or structure expansion joints.

5. Install each expansion-joint fitting with position, mounting, and piston setting selected according to manufacturer's written instructions for conditions at specific location at time of installation. Install conduit supports to allow for expansion movement.

W. Hooks:

1. Size to allow a minimum of 25 percent future capacity without exceeding design capacity limits.

2. Shall be supported by dedicated support wires. Do not use ceiling grid support wire or support rods.

3. Hook spacing shall allow no more than 6 inches of slack. The lowest point of the cables shall be no less than 6 inches adjacent to ceilings, mechanical ductwork and fittings, luminaires, power conduits, power and telecommunications outlets, and other electrical and communications equipment.

4. Space hooks no more than 5 feet o.c.

5. Provide a hook at each change in direction.

X. Mount boxes at heights indicated on Drawings. If mounting heights of boxes are not individually indicated, give priority to ADA requirements. Install boxes with height measured to center of box unless otherwise indicated.

Y. Recessed Boxes in Masonry Walls: Saw-cut opening for box in center of cell of masonry block, and install box flush with surface of wall. Prepare block surface to provide a flat surface for a raintight connection between box and cover plate or supported equipment and box.

Z. Horizontally separate boxes mounted on opposite sides of walls, so they are not in the same vertical channel.

AA. Support boxes of three gangs or more from more than one side by spanning two framing members or mounting on brackets specifically designed for the purpose.

BB. Fasten junction and pull boxes to or support from building structure. Do not support boxes by conduits.

CC. Set metal floor boxes level and flush with finished floor surface.

DD. Set nonmetallic floor boxes level. Trim after installation to fit flush with finished floor surface.

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3.3 SLEEVE AND SLEEVE-SEAL INSTALLATION FOR COMMUNICATIONS

PENETRATIONS

A. Install sleeves and sleeve seals at penetrations of exterior floor and wall assemblies. Comply with requirements in Section 270544 "Sleeves and Sleeve Seals for Communications Pathways and Cabling."

3.4 FIRESTOPPING

A. Install firestopping at penetrations of fire-rated floor and wall assemblies. Comply with requirements in Section 078413 "Penetration Firestopping."

3.5 PROTECTION

A. Protect coatings, finishes, and cabinets from damage or deterioration.

1. Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer.

2. Repair damage to PVC coatings or paint finishes with matching touchup coating recommended by manufacturer.

END OF SECTION 270528

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SECTION 270536 - CABLE TRAYS FOR COMMUNICATIONS SYSTEMS

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Ladder cable tray.

2. Wire-mesh cable tray.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of cable tray.

1. Include data indicating dimensions and finishes for each type of cable tray indicated.

B. Shop Drawings: For each type of cable tray.

1. Show fabrication and installation details of cable trays, including plans, elevations, and sections of components and attachments to other construction elements. Designate components and accessories, including clamps, brackets, hanger rods, splice-plate connectors, expansion-joint assemblies, straight lengths, and fittings.

2. Cable tray layout, showing cable tray route to scale, with relationship between the tray and adjacent structural, electrical, and mechanical elements. Include the following:

a. Vertical and horizontal offsets and transitions.

b. Clearances for access above and to sides of cable trays.

c. Vertical elevation of cable trays above the floor or bottom of ceiling structure.

d. Load calculations to show dead and live loads as not exceeding manufacturer's rating for tray and its support elements.

1.4 INFORMATIONAL SUBMITTALS

A. Field quality-control reports.

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PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Delegated Design: Engage a qualified professional engineer, as defined in Section 014000 "Quality Requirements," to design cable tray supports and seismic bracing.

B. Seismic Performance: Cable trays and supports shall withstand the effects of earthquake motions determined according to ASCE/SEI 7.

1. The term "withstand" means "the cable trays will remain in place without separation of any parts when subjected to the seismic forces specified."

2. Component Importance Factor: 1.0.

C. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes in cable tray installed outdoors.

1. Temperature Change: 120 deg F, ambient; 180 deg F, material surfaces.

2.2 GENERAL REQUIREMENTS FOR CABLE TRAYS

A. Cable Trays and Accessories: Identified as defined in NFPA 70 and marked for intended location, application, and grounding.

1. Source Limitations: Obtain cable trays and components from single manufacturer.

B. Sizes and Configurations: See the Cable Tray Schedule on Drawings for specific requirements for types, materials, sizes, and configurations.

C. Structural Performance: See articles for individual cable tray types for specific values for the following parameters:

1. Uniform Load Distribution: Capable of supporting a uniformly distributed load on the indicated support span when supported as a simple span and tested according to

NEMA VE 1.

2. Concentrated Load: A load applied at midpoint of span and centerline of tray.

3. Load and Safety Factors: Applicable to both side rails and rung capacities.

2.3 LADDER CABLE TRAY

A. Description:

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1. Configuration: Two longitudinal side rails with transverse rungs swaged or welded to side rails, complying with NEMA VE 1.

2. Width: 12 inches unless otherwise indicated on Drawings.

3. Minimum Usable Load Depth: 4 inches.

4. Straight Section Lengths: 10 feet, except where shorter lengths are required to facilitate tray assembly.

5. Rung Spacing: 9 inches o.c.

6. Radius-Fitting Rung Spacing: 9 inches at center of tray's width.

7. Minimum Cable-Bearing Surface for Rungs: 7/8-inch width with radius edges.

8. No portion of the rungs shall protrude below the bottom plane of side rails.

9. Structural Performance of Each Rung: Capable of supporting a maximum cable load, with a safety factor of 1.5, plus a 200-lb concentrated load, when tested according to

NEMA VE 1.

10. Fitting Minimum Radius: 12 inches.

11. Splicing Assemblies: Bolted type using serrated flange locknuts.

12. Splice-Plate Capacity: Splices located within support span shall not diminish rated loading capacity of cable tray.

B. Materials and Finishes:

1. Steel:

a. Straight Section and Fitting Side Rails and Rungs: Steel complies with the minimum mechanical properties of ASTM A 1011/A 1011M, SS, Grade 33.

b. Steel Tray Splice Plates: ASTM A 1011/A 1011M, HSLAS, Grade 50, Class 1.

c. Fasteners: Steel complies with the minimum mechanical properties of

ASTM A 510/A 510M, Grade 1008.

d. Finish: Hot-dip galvanized after fabrication, complying with

ASTM A123/A123 M, Class B2.

1) Hardware: Galvanized, ASTM B 633.

e. Finish: Hot-dip galvanized after fabrication, complying with

ASTM A 653/A 653M, G90.

1) Hardware: Galvanized, ASTM B 633.

f. Finish: Electrogalvanized after fabrication, complying with ASTM B 633.

1) Hardware: Galvanized, ASTM B 633.

g. Finish: Powder-coat enamel paint.

1) Powder-Coat Enamel: Cable tray manufacturer's recommended primer and corrosion-inhibiting treatment, with factory-applied powder-coat paint.

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2) Hardware: Chromium-zinc plated, ASTM F 1136.

h. Finish: Factory-standard primer, ready for field painting, with chromium-zinc-plated hardware according to ASTM F 1136.

i. Finish: Black oxide finish for support accessories and miscellaneous hardware according to ASTM D 769.

2.4 WIRE-MESH CABLE TRAY

A. Description:

1. Configuration: Galvanized- steel wire mesh, complying with NEMA VE 1.

2. Width: 12 inches unless otherwise indicated on Drawings.

3. Minimum Usable Load Depth: 4 inches.

4. Straight Section Lengths: 10 feet, except where shorter lengths are required to facilitate tray assembly.

5. Structural Performance: Capable of supporting a maximum cable load, with a safety factor of 1.5, plus a 200-lb concentrated load, when tested according to NEMA VE 1.

6. Splicing Assemblies: Bolted type using serrated flange locknuts.

7. Splice-Plate Capacity: Splices located within support span shall not diminish rated loading capacity of cable tray.

B. Materials and Finishes:

1. Steel:

a. Straight Sections and Fittings: Steel complies with the minimum mechanical properties of ASTM A 1011/A 1011M, SS, Grade 33.

b. Steel Tray Splice Plates: ASTM A 1011/A 1011M, HSLAS, Grade 50, Class 1.

c. Fasteners: Steel complies with the minimum mechanical properties of

ASTM A 510/A 510M, Grade 1008.

d. Finish: Hot-dip galvanized after fabrication, complying with

ASTM A123/A123 M, Class B2.

1) Hardware: Galvanized, ASTM B 633.

e. Finish: Hot-dip galvanized after fabrication, complying with

ASTM A 653/A 653M, G90.

1) Hardware: Galvanized, ASTM B 633.

f. Finish: Electrogalvanized after fabrication, complying with ASTM B 633.

1) Hardware: Galvanized, ASTM B 633.

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g. Finish: paint.

1) Hardware: Chromium-zinc plated, ASTM F 1136.

h. Finish: Factory-standard primer, ready for field painting, with chromium-zinc-plated hardware according to ASTM F 1136.

i. Finish: Black oxide finish for support accessories and miscellaneous hardware according to ASTM D 769.

2.5 SOURCE QUALITY CONTROL

A. Testing: Test and inspect cable trays according to NEMA FG 1 NEMA VE 1.

PART 3 - EXECUTION

3.1 CABLE TRAY INSTALLATION

A. Install cable trays according to NEMA VE 2.

B. Install cable trays as a complete system, including fasteners, hold-down clips, support systems, barrier strips, adjustable horizontal and vertical splice plates, elbows, reducers, tees, crosses, cable dropouts, adapters, covers, and bonding.

C. Install cable trays so that the tray is accessible for cable installation and all splices are accessible for inspection and adjustment.

D. Remove burrs and sharp edges from cable trays.

E. Join aluminum cable tray with splice plates; use four square neck-carriage bolts and locknuts.

F. Fasten cable tray supports to building structure.

G. Design fasteners and supports to carry cable tray, the cables, and a concentrated load of 200 lb.

Comply with requirements in Section 270529 "Hangers and Supports for Communications Systems."

H. Place supports so that spans do not exceed maximum spans on…