IFB_250103_Ochoa_Technical_Specs.pdf

CITY OF TUCSON

OCHOA PARK IMPROVEMENTS

TECHNICAL SPECIFICATIONS

260519 Low-Voltage Electrical Power Conductors and Cables

260526 Grounding and Bonding for Electrical Systems

260529 Hangers and Supports for Electrical Systems

260533 Raceways and Boxes for Electrical Systems

260543 Underground Ducts and Raceways for Electrical Systems

260553 Identification for Electrical Systems

260923 Lighting Control Devices

262213 Low-Voltage Distribution Transformers

262416 Panelboards

262726 Wiring Devices

262813 Fuses

262816 Enclosed Switches and Circuit Breakers

265119 LED Interior Lighting

265613 Lighting Poles and Standards

265619 LED Exterior Lighting

265658 Field Lighting

VOL 1 of 1

GLHN JOB No. 22066.00

December 20, 2024

T 520.881.4546 | F 520.795.1822 | GLHN.com

GLHN Architects & Engineers, Inc. | 2939 E Broadway Blvd, Tucson, AZ 85716

Ochoa Park Improvements

City of Tucson Parks and Recreation Technical Specifications

City of Tucson Parks and Recreation 260519 - 1 Low-Voltage Electrical Ochoa Park Improvements GLHN #22064.00 Power Conductors and Cables

SECTION 260519

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

PART 1 - GENERAL

1.01 SUMMARY

A. Section Includes:

1. Copper building wire rated 600 V or less.

2. Connectors, splices, and terminations rated 600 V and less.

1.02 ACTION SUBMITTALS

A. Product Data: For each type of product.

1.03 INFORMATIONAL SUBMITTALS

A. Field quality-control reports.

PART 2 - PRODUCTS

2.01 COPPER BUILDING WIRE

A. Description: Flexible, insulated and uninsulated, drawn copper current-carrying conductor with an overall insu-lation layer or jacket, or both, rated 600 V or less.

B. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

1. Alpha Wire Company.

2. American Bare Conductor.

3. Belden Inc.

4. Cerro Wire LLC.

5. Encore Wire Corporation.

6. General Cable; Prysmian Group North America.

7. Okonite Company (The).

8. Service Wire Co.

9. Southwire Company.

10. WESCO.

C. Standards:

1. Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

2. RoHS compliant.

3. Conductor and Cable Marking: Comply with wire and cable marking according to UL's "Wire and

Cable Marking and Application Guide."

D. Conductors: Copper, complying with ASTM B3 for bare annealed copper and with ASTM B3, B8 for stranded conductors.

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City of Tucson Parks and Recreation 260519 - 2 Low-Voltage Electrical

E. Conductor Insulation:

1. Type THHN and Type THWN-2: Comply with UL 83.

2. Type XHHW-2: Comply with UL 44.

2.02 METAL-CLAD CABLE, TYPE MC

A. Description: A factory assembly of one or more current-carrying insulated conductors in an overall metallic sheath.

B. Standards:

1. Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

2. Comply with UL 1569.

3. RoHS compliant.

4. Conductor and Cable Marking: Comply with wire and cable marking according to UL's "Wire and

Cable Marking and Application Guide."

C. Circuits:

1. Single circuit.

D. Conductors: Copper, complying with ASTM B3 for bare annealed copper and with ASTM B8 for stranded conductors.

E. Ground Conductor: Insulated.

F. Conductor Insulation:

1. Type TFN/THHN/THWN-2: Comply with UL 83.

G. Armor: Steel, interlocked.

H. Jacket: PVC applied over armor.

2.03 CONNECTORS AND SPLICES

A. Description: Factory-fabricated connectors, splices, and lugs of size, ampacity rating, material, type, and class for application and service indicated; listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

B. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

1. 3M Electrical Products.

2. ABB, Electrification Business.

3. AFC Cable Systems; Atkore International.

4. Gardner Bender.

5. Hubbell Utility Solutions; Hubbell Incorporated.

6. Ideal Industries, Inc.

7. ILSCO.

8. NSi Industries LLC.

9. O-Z/Gedney; Emerson Electric Co., Automation Solutions, Appleton Group.

10. Service Wire Co.

11. TE Connectivity Ltd.

12. Morris Products.

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City of Tucson Parks and Recreation 260519 - 3 Low-Voltage Electrical

C. Above-ground conductors No. 6 and smaller:

1. Connectors shall be solderless, screw on, pressure cable type, 600V-rated, 90 degree C, with integral insulation. They shall be approved for copper conductors, and shall be reusable.

2. The integral insulator shall have a skirt to completely cover the stripped wires.

3. The number, size, and combination of conductors, as listed on the manufacturers packaging shall be strictly complied with.

4. All wires shall be twisted together before installing screw-on connectors.

D. Above-ground conductors No. 4 AWG and larger:

1. Connectors shall be compression type. Material shall be high conductivity copper. Compression connectors shall be applied with special tool sized appropriately for the conductor size, and tool shall not release until full compression is achieved.

2. Connectors for cable sizes 250 MCM and larger shall have not less than two clamping elements or compression indents per conductor. Connectors for cable sizes smaller than 250 MCM may have one clamping element or compression indent per conductor.

E. Underground conductors, all sizes: UL listed for direct burial, inline or multiport, for conductors indicated.

PART 3 - EXECUTION

3.1 CONDUCTOR MATERIAL APPLICATIONS

A. Feeders:

1. Copper; solid for No. 12 AWG and smaller; stranded for No. 8 AWG and larger.

B. Branch Circuits:

1. Copper, Solid for No. 12 AWG and smaller; stranded for No. 10 AWG and larger.

3.2 CONDUCTOR INSULATION AND MULTICONDUCTOR CABLE APPLICATIONS AND WIRING METHODS

A. Service Entrance: Type XHHW-2, single conductors in raceway.

B. Exposed Feeders: Type XHHW-2, single conductors in raceway.

C. Feeders Concealed in Ceilings, Walls, Partitions, and Crawlspaces: Type THHN/THWN-2, single conductors in raceway.

D. Feeders Concealed in Concrete, below Slabs-on-Grade, and Underground: Type XHHW-2, single conductors in raceway.

E. Exposed Branch Circuits, Including in Crawlspaces: Type THHN/THWN-2, single conductors in raceway.

F. Branch Circuits Concealed in Ceilings, Walls, and Partitions: Type THHN/THWN-2, single conductors in raceway.

G. Branch Circuits Concealed in Concrete, below Slabs-on-Grade, and Underground: Type XHHW-2, single conductors in raceway.

H. Branch Circuits Concealed in Ramada Steel Structure: Type THHN/THWN-2 MC cable, single conductors in raceway. MC cable will terminate at ramada manufacturer’s box in vertical steel tube, and continue to light fixture overhead. No other uses are allowed.

City of Tucson Parks and Recreation 260519 - 4 Low-Voltage Electrical

3.3 INSTALLATION OF CONDUCTORS AND CABLES

A. Conceal cables in finished walls, ceilings, and floors unless otherwise indicated.

B. Complete raceway installation between conductor and cable termination points according to Section 26- 05-33 "Raceways and Boxes for Electrical Systems" prior to pulling conductors and cables.

C. Use manufacturer-approved pulling compound or lubricant where necessary; compound used must not deteriorate conductor or insulation. Do not exceed manufacturer's recommended maximum pulling tensions and sidewall pressure values.

D. Use pulling means, including fish tape, cable, rope, and basket-weave wire/cable grips, that will not damage cables or raceway.

E. Install exposed cables parallel and perpendicular to surfaces of exposed structural members, and follow surface contours where possible.

F. Support cables according to Section 26-05-29 "Hangers and Supports for Electrical Systems."

G. No more than three circuits shall be pulled into one conduit, except as shown on plans.

H. Group and tie all current-carrying conductors (phase and neutral) of a single circuit together to facilitate current leakage testing.

3.4 CONNECTIONS

A. Tighten electrical connectors and terminals according to manufacturer's published torque-tightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A-486B.

B. Make splices, terminations, and taps that are compatible with conductor material.

C. Wiring at Outlets: Install conductor at each outlet, with at least 6 inches of slack.

D. Underground connections for feeders and branch circuits shall be made using connectors listed for direct-burial applications.

3.5 IDENTIFICATION

A. Identify and color-code conductors and cables according to Section 26-05-53 "Identification for Electrical Systems."

B. Identify each spare conductor at each end with identity number and location of other end of conductor, and identify as spare conductor.

3.6 FIRESTOPPING

A. Apply firestopping to electrical penetrations of fire-rated floor and wall assemblies to restore original fire-resistance rating of assembly according to Section 07-84-13 "Penetration Firestopping."

3.7 FIELD TESTING

A. All conductors shall be insulation-resistance tested (“megger” test) and current leakage tested. The

Contractor shall furnish the instruments, materials and labor for these tests.

B. Insulation-Resistance Test: Test all conductors phase-to-phase and phase-to-ground. Voltage shall be 1000 VDC for insulation rated for 600V. Minimum recorded resistance shall be 100 megohms. Wire and splices not meeting this requirement shall be repaired or replaced and retested until the requirement is met.

City of Tucson Parks and Recreation 260519 - 5 Low-Voltage Electrical

C. Current Leakage Test: Energize conductors and test as a complete circuit, except for equipment grounding conductors, using a clamp-on current leakage test device. Maximum recorded leakage current shall be less than 6mA. Wire and splices not meeting this requirement shall be repaired or replaced and retested until the requirement is met.

D. The Contractor shall present to the Architect/Engineer three copies of all test reports and shall include one copy in each maintenance manual. Test reports shall include date, time, and temperature in addition to megger and leakage current readings and identification of circuits or feeders tested.

E. Tests shall be made in the presence of the Owner’s Representative, at Owner’s option. Notify Owner minimum 48 hours in advance of testing.

END OF SECTION 260519

City of Tucson Parks and Recreation 260519 - 6 Low-Voltage Electrical

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City of Tucson Parks and Recreation 260526 - 1 Grounding and Bonding for Ochoa Park Improvements GLHN #22064.00 Electrcial Systems

SECTION 260526

GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL

1.01 SUMMARY

A. Section includes grounding and bonding systems and equipment.

B. Section includes grounding and bonding systems and equipment, plus the following special applications:

1. Underground distribution grounding.

2. Foundation steel electrodes.

1.02 ACTION SUBMITTALS

C. Product Data: For each type of product.

PART 2 - PRODUCTS

2.01 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.

2.02 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

1. ABB, Electrification Business.

2. Advanced Lightning Technology, Ltd.

3. Burndy; brand of Hubbell Electrical Solutions; Hubbell Incorporated.

4. Dossert; AFL Telecommunications LLC.

5. ERICO; nVent.

6. Fushi Copperweld Inc.

7. Galvan Industries, Inc.; Electrical Products Division, LLC.

8. Harger Lightning & Grounding.

9. ILSCO.

10. O-Z/Gedney; Emerson Electric Co., Automation Solutions, Appleton Group.

11. Robbins Lightning, Inc.

12. Siemens Industry, Inc., Energy Management Division.

2.03 CONDUCTORS

A. Insulated Conductors: Copper wire or cable insulated for 600 V unless otherwise required by applicable Code or authorities having jurisdiction.

B. Bare Copper Conductors:

1. Solid Conductors: ASTM B3.

2. Stranded Conductors: ASTM B8.

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City of Tucson Parks and Recreation 260526 - 2 Grounding and Bonding for

C. Grounding Bus: Predrilled rectangular bars of annealed copper, 1/4 by 4 inches in cross section, with 9/32-inch holes spaced 1-1/8 inches apart. Stand-off insulators for mounting shall comply with UL 891 for use in switchboards, 600 V and shall be Lexan or PVC, impulse tested at 5000 V.

2.04 CONNECTORS

A. Listed and labeled by an NRTL acceptable to authorities having jurisdiction for applications in which used and for specific types, sizes, and combinations of conductors and other items connected.

B. Welded Connectors: Exothermic-welding kits of types recommended by kit manufacturer for materials being joined and installation conditions.

C. Cable-to-Cable Connectors: Compression type, copper or copper alloy.

D. Conduit Hubs: Mechanical type, terminal with threaded hub.

E. Ground Rod Clamps: Mechanical type, copper or copper alloy, terminal with hex head bolt.

F. Water Pipe Clamps:

1. Mechanical type, two pieces with zinc-plated bolts.

(a) Material: Tin-plated aluminum.

(b) Listed for direct burial.

2. U-bolt type with malleable-iron clamp and copper ground connector.

2.05 GROUNDING ELECTRODES

A. Ground Rods: Copper-clad steel, 5/8 by 96 inches.

PART 3 - EXECUTION

3.01 APPLICATIONS

A. Conductors: Install solid conductor for No. 12 AWG and smaller, and stranded conductors for No. 10 AWG and larger unless otherwise indicated.

B. Underground Grounding Conductors: Install bare copper conductor.

1. Bury at least 30 inches below grade.

C. Grounding Bus: Install in electrical equipment rooms, in rooms housing service equipment, and elsewhere as indicated.

1. Install bus horizontally, on insulated spacers 2 inches minimum from wall, 6 inches above finished floor unless otherwise indicated.

2. 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.

D. Conductor Terminations and Connections:

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

2. Underground Connections: Welded connectors.

3. Connections to Structural Steel: Welded connectors.

3.02 GROUNDING AT THE SERVICE

A. Equipment grounding conductors and grounding electrode conductors shall be connected to the ground bus. Install a main bonding jumper between the neutral and ground buses.

City of Tucson Parks and Recreation 260526 - 3 Grounding and Bonding for

3.03 GROUNDING SEPARATELY DERIVED SYSTEMS

A. Transformers: Install grounding electrode(s) at each transformer location. The electrode shall be connected to the equipment grounding conductor and to the enclosure of the transformer.

3.04 GROUNDING UNDERGROUND DISTRIBUTION SYSTEM COMPONENTS

A. Comply with IEEE C2 grounding requirements.

B. Grounding Manholes: Install a driven ground rod through manhole or handhole floor, close to wall, and set rod depth so 4 inches will extend 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.

C. 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, stranded, hard-drawn copper bonding conductor. Train conductors level or plumb around corners and fasten to manhole walls. Connect to cable armor and cable shields according to written instructions by manufacturer of splicing and termination kits.

D. Pad-Mounted Transformers and Switches: Install two ground rods and ground ring around the pad.

Ground pad-mounted equipment and noncurrent-carrying metal items associated with substations by connecting them to underground cable and grounding electrodes. Install tinned-copper conductor not less than No. 2 AWG for ground ring and for taps to equipment grounding terminals. Bury ground ring not less than 6 inches from the foundation.

3.05 EQUIPMENT GROUNDING

A. Install insulated equipment grounding conductors with all feeders and branch circuits.

B. Water Heater, Heat-Tracing, and Antifrost Heating Cables: Install a separate insulated equipment grounding conductor to each electric water heater and heat-tracing cable. Bond conductor to heater units, piping, connected equipment, and components.

C. Poles Supporting Outdoor Lighting Fixtures: Install grounding electrode and a separate insulated equipment grounding conductor in addition to grounding conductor installed with branch-circuit conductors. Grounding electrode shall be not less than 20’ of bare copper conductor coiled in bottom of excavation prior to concrete pour.

1. Musco Lighting poles are equipped with an integral grounding plate, and do not require the grounding electrode in the bottom of the excavation.

3.06 EQUIPOTENTIAL GROUNDING AT WATER FEATURES:

A. Install #8 bare copper equipotential bonding conductor and connect to all metallic items as required by

NEC.

3.07 INSTALLATION

A. Grounding Conductors: Route along shortest and straightest paths possible unless otherwise indicated or required by Code. Avoid obstructing access or placing conductors where they may be subjected to strain, impact, or damage.

City of Tucson Parks and Recreation 260526 - 4 Grounding and Bonding for

B. Ground Rods: Drive rods until tops are 2 inches below finished floor or final grade unless otherwise indicated.

1. Interconnect ground rods with grounding electrode conductor below grade and as otherwise indicated. Make connections without exposing steel or damaging coating if any.

C. Bonding Straps and Jumpers: Install in locations accessible for inspection and maintenance except where routed through short lengths of conduit.

1. Bonding to Structure: Bond straps directly to basic structure, taking care not to penetrate any adjacent parts.

2. Bonding to Equipment Mounted on Vibration Isolation Hangers and Supports: Install bonding so vibration is not transmitted to rigidly mounted equipment.

3. Use exothermic-welded connectors for outdoor locations.

D. Grounding and Bonding for Piping:

1. Metal Water Service Pipe: Install insulated copper grounding conductors, in conduit, from building's main service equipment, or grounding bus, to main metal water service entrances to building.

Connect grounding conductors to main metal water service pipes; use a bolted clamp connector or bolt a lug-type connector to a pipe flange by using one of the lug bolts of the flange. Where a dielectric main water fitting is installed, connect grounding conductor on street side of fitting. Bond metal grounding conductor conduit or sleeve to conductor at each end.

2. Water Meter Piping: Use braided-type bonding jumpers to electrically bypass water meters. Connect to pipe with a bolted connector.

3. Bond each aboveground portion of gas piping system downstream from equipment shutoff valve.

3.08 FIELD QUALITY CONTROL

A. Perform tests and inspections.

B. Tests and Inspections:

1. After installing grounding system but before permanent electrical circuits have been energized, test for compliance with requirements.

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

END OF SECTION 260526

City of Tucson Parks and Recreation 260529 - 1 Hangers and Supports for

SECTION 260529

HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes:

1. Steel slotted support systems.

2. Conduit and cable support devices.

3. Support for conductors in vertical conduit.

4. Mounting, anchoring, and attachment components, including powder-actuated fasteners, mechanical expansion anchors, concrete inserts, clamps, through bolts, toggle bolts, and hanger rods.

1.02 ACTION SUBMITTALS

A. Product Data: For each type of product.

PART 2 PRODUCTS

2.01 SUPPORT, ANCHORAGE, AND ATTACHMENT COMPONENTS

A. Steel Slotted Support Systems: Preformed steel channels and angles with minimum 13/32-inch-diameter holes at a maximum of 8 inches o.c. in at least one surface.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

(a) ABB, Electrification Business.

(b) Allied Tube & Conduit; Atkore International.

(c) B-line; Eaton, Electrical Sector.

(d) CADDY; nVent.

(e) Flex-Strut Inc.

(f) Gripple Inc.

(g) G-Strut.

(h) Haydon Corporation.

(i) Metal Ties Innovation.

(j) MIRO Industries.

(k) Unistrut; Atkore International.

(l) Wesanco, Inc.

2. Standard: Comply with MFMA-4 factory-fabricated components for field assembly.

3. Material for Channel, Fittings, and Accessories: Galvanized steel.

4. Channel Width: 1-5/8 inches.

5. Metallic Coatings: Hot-dip galvanized after fabrication and applied according to MFMA-4.

B. Conduit and Cable Support Devices: Steel hangers, clamps, and associated fittings, designed for types and sizes of raceway or cable to be supported.

C. Support for Conductors in Vertical Conduit: Factory-fabricated assembly consisting of threaded body and insulating wedging plug or plugs for nonarmored electrical conductors or cables in riser conduits.

Plugs shall have number, size, and shape of conductor gripping pieces as required to suit individual conductors or cables supported. Body shall be made of malleable iron.

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City of Tucson Parks and Recreation 260529 - 2 Hangers and Supports for

D. Mounting, Anchoring, and Attachment Components: Items for fastening electrical items or their supports to building surfaces include the following:

1. Mechanical-Expansion Anchors: Insert-wedge-type, zinc-coated steel, for use in hardened portland cement concrete, with tension, shear, and pullout capacities appropriate for supported loads and building materials where used.

(a) Manufacturers: Subject to compliance with requirements, provide products by one of the following:

(i) B-line; Eaton, Electrical Sector.

(ii) Empire Tool and Manufacturing Co., Inc.

(iii) Hilti, Inc.

(iv) ITW Ramset/Red Head; Illinois Tool Works, Inc.

(v) MKT Fastening, LLC.

2. Concrete Inserts: Steel or malleable-iron, slotted support system units are similar to MSS Type 18 units and comply with MFMA-4 or MSS SP-58.

3. Clamps for Attachment to Steel Structural Elements: MSS SP-58 units are suitable for attached structural element.

4. Through Bolts: Structural type, hex head, and high strength. Comply with ASTM F3125/F3125M, Grade A325.

5. Toggle Bolts: All-steel springhead type.

6. Hanger Rods: Threaded steel.

PART 3 EXECUTION

3.01 APPLICATION

A. Comply with the following standards for application and installation requirements of hangers and supports, except where requirements on Drawings or in this Section are stricter:

1. NECA 1.

2. NECA 101

3. NECA 102.

4. NECA 105.

5. NECA 111.

B. Comply with requirements in Section 07-84-13 "Penetration Firestopping" for firestopping materials and installation for penetrations through fire-rated walls, ceilings, and assemblies.

C. Comply with requirements for raceways and boxes specified in Section 26-05-33 "Raceways and Boxes for Electrical Systems."

D. Maximum Support Spacing and Minimum Hanger Rod Size for Raceways: Space supports for EMT, IMC, and RMC as required by NFPA 70. Minimum rod size shall be 1/4 inch in diameter.

E. Multiple Raceways or Cables: Install trapeze-type supports fabricated with steel slotted support system, sized so capacity can be increased by at least 25 percent in future without exceeding specified design load limits.

1. Secure raceways and cables to these supports with two-bolt conduit clamps.

F. Spring-steel clamps designed for supporting single conduits without bolts may be used for 1-1/2-inch and smaller raceways serving branch circuits and communication systems above suspended ceilings, and for fastening raceways to trapeze supports.

3.02 SUPPORT INSTALLATION

A. Comply with NECA 1 and NECA 101 for installation requirements except as specified in this article.

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City of Tucson Parks and Recreation 260529 - 3 Hangers and Supports for

B. Raceway Support Methods: In addition to methods described in NECA 1, EMT IMC and RMC may be supported by openings through structure members, according to NFPA 70.

C. Strength of Support Assemblies: Where not indicated, select sizes of components so strength will be adequate to carry present and future static loads within specified loading limits. Minimum static design load used for strength determination shall be weight of supported components plus 200 lb.

D. Mounting and Anchorage of Surface-Mounted Equipment and Components: Anchor and fasten electrical items and their supports to building structural elements by the following methods unless otherwise indicated by code:

1. To Wood: Fasten with lag screws or through bolts.

2. To New Concrete: Bolt to concrete inserts.

3. To Masonry: Approved toggle-type bolts on hollow masonry units and expansion anchor fasteners on solid masonry units.

4. To Existing Concrete: Expansion anchor fasteners.

5. To Steel: Beam clamps (MSS SP-58, Type 19, 21, 23, 25, or 27), complying with MSS SP-69.

6. To Light Steel: Sheet metal screws.

7. Items Mounted on Hollow Walls and Nonstructural Building Surfaces: Mount cabinets, panelboards, disconnect switches, control enclosures, pull and junction boxes, transformers, and other devices on slotted-channel racks attached to substrate.

E. Drill holes for expansion anchors in concrete at locations and to depths that avoid the need for reinforcing bars.

3.03 INSTALLATION OF FABRICATED METAL SUPPORTS

A. Cut, fit, and place miscellaneous metal supports accurately in location, alignment, and elevation to support and anchor electrical materials and equipment.

END OF SECTION 260529

City of Tucson Parks and Recreation 260529 - 4 Hangers and Supports for

City of Tucson Parks and Recreation 260533 - 1 Raceways and Boxes for

SECTION 260533

RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes:

1. Metal conduits and fittings.

2. Metal wireways and auxiliary gutters.

3. Surface raceways.

4. Boxes, enclosures, and cabinets.

B. Related Requirements:

1. Section 078413 "Penetration Firestopping" for firestopping at conduit and box entrances.

2. Section 260543 "Underground Ducts and Raceways for Electrical Systems" for exterior ductbanks, manholes, and underground utility construction.

1.02 ACTION SUBMITTALS

A. Product Data: For each type of product.

PART 2 PRODUCTS

2.01 METAL CONDUITS AND FITTINGS

A. Metal Conduit:

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

(a) ABB, Electrification Business.

(b) AFC Cable Systems; Atkore International.

(c) Allied Tube & Conduit; Atkore International.

(d) Anaconda Sealtite; Anamet Electrical, Inc.

(e) Calconduit; Atkore International.

(f) Electri-Flex Company.

(g) FSR Inc.

(h) Korkap.

(i) NEC, Inc.

(j) NewBasis.

(k) Opti-Com Manufacturing Network, Inc (OMNI).

(l) O-Z/Gedney; Emerson Electric Co., Automation Solutions, Appleton Group.

(m) Patriot Aluminum Products, LLC.

(n) Perma-Cote; Robroy Industries.

(o) Picoma; Zekelman Industries.

(p) Plasti-Bond; Robroy Industries.

(q) Republic Conduit; Nucor Corporation, Nucor Tubular Products.

(r) Southwire Company.

(s) Topaz Lighting & Electric.

(t) Western Tube; Zekelman Industries.

(u) Wheatland Tube; Zekelman Industries.

2. Listing and Labeling: Metal conduits, tubing, and fittings shall be listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

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

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City of Tucson Parks and Recreation 260533 - 2 Raceways and Boxes for

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

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

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

7. FMC: Comply with UL 1; zinc-coated steel.

8. LFMC: Flexible steel conduit with PVC jacket and complying with UL 360.

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

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

(a) ABB, Electrification Business.

(b) AFC Cable Systems; Atkore International.

(c) Allied Tube & Conduit; Atkore International.

(d) Anaconda Sealtite; Anamet Electrical, Inc.

(e) Calconduit; Atkore International.

(f) Electri-Flex Company.

(g) FSR Inc.

(h) Korkap.

(i) NEC, Inc.

(j) NewBasis.

(k) Opti-Com Manufacturing Network, Inc (OMNI).

(l) O-Z/Gedney; Emerson Electric Co., Automation Solutions, Appleton Group.

(m) Patriot Aluminum Products, LLC.

(n) Perma-Cote; Robroy Industries.

(o) Picoma; Zekelman Industries.

(p) Plasti-Bond; Robroy Industries.

(q) Republic Conduit; Nucor Corporation, Nucor Tubular Products.

(r) Southwire Company.

(s) Topaz Lighting & Electric.

(t) Western Tube; Zekelman Industries.

(u) Wheatland Tube; Zekelman Industries.

2. Listing and Labeling: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

3. Fittings, General: Listed and labeled for type of conduit, location, and use.

4. Conduit Fittings for Hazardous (Classified) Locations: Comply with UL 1203 and NFPA 70.

5. Fittings for EMT:

(a) Material: Steel.

(b) Type: Compression.

6. Expansion Fittings: PVC or steel to match conduit type, complying with UL 651, rated for environmental conditions where installed, and including flexible external bonding jumper.

C. Joint Compound for IMC, GRC, or ARC: Approved, as defined in NFPA 70, by authorities having jurisdiction for use in conduit assemblies, and compounded for use to lubricate and protect threaded conduit joints from corrosion and to enhance their conductivity.

2.02 METAL WIREWAYS AND AUXILIARY GUTTERS

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

1. ABB, Electrification Business.

2. B-line; Eaton, Electrical Sector.

3. Hoffman; nVent.

4. MonoSystems, Inc.

5. Square D; Schneider Electric USA.

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City of Tucson Parks and Recreation 260533 - 3 Raceways and Boxes for

6. Wiegmann; brand of Hubbell Electrical Solutions; Hubbell Incorporated.

B. Description: Sheet metal, complying with UL 870 and NEMA 250, Type 1 or Type 3R, as required by installed conditions,, and sized according to NFPA 70.

1. Metal wireways installed outdoors shall be listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

C. Fittings and Accessories: Include covers, couplings, offsets, elbows, expansion joints, adapters, hold-down straps, end caps, and other fittings to match and mate with wireways as required for complete system.

2.03 BOXES, ENCLOSURES, AND CABINETS

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

1. ABB, Electrification Business.

2. Adalet.

3. Arlington Industries, Inc.

4. Crouse-Hinds; Eaton, Electrical Sector.

5. EGS; Emerson Electric Co., Automation Solutions, Appleton Group.

6. Erickson Electrical Equipment Company.

7. FSR Inc.

8. Hoffman; nVent.

9. Hubbell Electrical Solutions; Hubbell Incorporated.

10. Hubbell Wiring Device-Kellems; brand of Hubbell Electrical Solutions; Hubbell Incorporated.

11. Kraloy Fittings.

12. Milbank Manufacturing Co.

13. MonoSystems, Inc.

14. Oldcastle Infrastructure Inc.; CRH Americas.

15. O-Z/Gedney; Emerson Electric Co., Automation Solutions, Appleton Group.

16. Plasti-Bond; Robroy Industries.

17. Raco Taymac Bell; brand of Hubbell Electrical Solutions; Hubbell Incorporated.

18. Spring City Electrical Manufacturing Company.

19. Stahlin Non-Metallic Enclosures.

20. Topaz Lighting & Electric.

21. Wiremold; Legrand North America, LLC.

B. General Requirements for Boxes, Enclosures, and Cabinets: Boxes, enclosures, and cabinets installed in wet locations shall be listed for use in wet locations.

C. Sheet Metal Outlet and Device Boxes: Comply with NEMA OS 1 and UL 514A.

D. Cast-Metal Outlet and Device Boxes: Comply with NEMA FB 1, ferrous alloy, Type FD, with gasketed cover.

E. Small Sheet Metal Pull and Junction Boxes: NEMA OS 1.

F. Cast-Metal Access, Pull, and Junction Boxes: Comply with NEMA FB 1 and UL 1773, galvanized, cast iron with gasketed cover.

G. Box extensions used to accommodate new building finishes shall be of same material as recessed box.

H. Device Box Dimensions: 4 inches square by 2-1/8 inches deep.

I. Gangable boxes are prohibited.

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City of Tucson Parks and Recreation 260533 - 4 Raceways and Boxes for

J. Hinged-Cover Enclosures: Comply with UL 50 and NEMA 250, Type 1 or Type 3R as required by installed conditions, with continuous-hinge cover with flush latch unless otherwise indicated.

1. Metal Enclosures: Steel, finished inside and out with manufacturer's standard enamel.

2. Interior Panels: Steel; all sides finished with manufacturer's standard enamel.

K. Cabinets:

1. NEMA 250, Type 1 or Type 3R as required by installed conditions, galvanized-steel box with removable interior panel and removable front, finished inside and out with manufacturer's standard enamel.

2. Hinged door in front cover with flush latch and concealed hinge.

3. Key latch to match panelboards.

4. Metal barriers to separate wiring of different systems and voltage.

5. Accessory feet where required for freestanding equipment.

PART 3 EXECUTION

3.01 RACEWAY APPLICATION

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

1. Exposed Conduit: GRC or IMC.

2. Concealed Conduit, Aboveground: EMT.

3. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic, Electric

Solenoid, or Motor-Driven Equipment): LFMC.

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

B. Indoors: Apply raceway 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 or IMC]. Raceway locations include the following:

(a) Loading dock.

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

(c) Mechanical rooms.

(d) Areas accessible to the public.

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

5. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic, Electric

Solenoid, or Motor-Driven Equipment): FMC, except use LFMC in damp or wet locations.

6. Damp or Wet Locations: GRC or IMC.

7. Boxes and Enclosures: NEMA 250, Type 1.

C. Minimum Raceway Size: 3/4-inch trade size.

D. Raceway Fittings: Compatible with raceways 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. EMT: Use compression steel fittings. Comply with NEMA FB 2.10.

3. Flexible Conduit: Use only fittings listed for use with flexible conduit. Comply with NEMA FB 2.20.

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

F. Install surface raceways only where indicated on Drawings.

3.02 INSTALLATION

A. Comply with requirements in Section 26-05-29 "Hangers and Supports for Electrical Systems" for hangers and supports.

City of Tucson Parks and Recreation 260533 - 5 Raceways and Boxes for

B. Comply with NECA 1 and NECA 101 for installation requirements except where requirements on Drawings or in this article are stricter. Comply with NECA 102 for aluminum conduits. Comply with NFPA 70 limitations for types of raceways allowed in specific occupancies and number of floors.

C. Do not install raceways or electrical items on any "explosion-relief" walls or rotating equipment.

D. Do not fasten conduits onto the bottom side of a metal deck roof.

E. Keep raceways at least 6 inches away from parallel runs of flues and steam or hot-water pipes. Install horizontal raceway runs above water and steam piping.

F. Comply with requirements in Section 26-05-29 "Hangers and Supports for Electrical Systems" for hangers and supports.

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

H. Install no more than the equivalent of three 90-degree bends in any conduit run except for control wiring conduits, for which fewer bends are allowed. Support within 12 inches of changes in direction.

I. Make bends in raceway using large-radius preformed ells. Field bending shall be according to NFPA 70 minimum radii requirements. Use only equipment specifically designed for material and size involved.

J. Conceal conduit and EMT within finished walls, ceilings, and floors unless otherwise indicated. Install conduits parallel or perpendicular to building lines.

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

L. Raceways Embedded in Slabs:

1. Run conduit larger than 1-inch trade size, parallel or at right angles to main reinforcement. Where at right angles to reinforcement, place conduit close to slab support. Secure raceways to reinforcement at maximum 10-foot intervals.

2. Arrange raceways to cross building expansion joints at right angles with expansion fittings.

3. Arrange raceways to keep a minimum of 1 inch of concrete cover in all directions.

4. Do not embed threadless fittings in concrete unless specifically approved by Architect for each specific location.

M. Stub-ups to Above Recessed Ceilings:

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

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

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

O. Raceway Terminations at Locations Subject to Moisture or Vibration: Use insulating bushings to protect conductors including conductors smaller than No. 4 AWG.

P. Terminate threaded conduits into threaded hubs or with locknuts on inside and outside of boxes or cabinets. Install bushings on conduits up to 1-1/4-inch trade size and insulated throat metal bushings on 1-1/2-inch trade size and larger conduits terminated with locknuts. Install insulated throat metal grounding bushings on service conduits.

Q. Install pull wires in empty raceways. 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. Cap underground raceways designated as spare above grade alongside raceways in use.

R. Surface Raceways:

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

City of Tucson Parks and Recreation 260533 - 6 Raceways and Boxes for

2. Secure surface raceway with screws or other anchor-type devices at intervals not exceeding 48 inches and with no less than two supports per straight raceway section. Support surface raceway according to manufacturer's written instructions. Tape and glue are not acceptable support methods.

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

T. Install devices to seal raceway 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 raceways at the following points:

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

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

3. Conduit extending from interior to exterior of building.

4. Conduit extending into pressurized duct and equipment.

5. Conduit extending into pressurized zones that are automatically controlled to maintain different pressure set points.

6. Where otherwise required by NFPA 70.

U. Flexible Conduit Connections: Comply with NEMA RV 3. Use a maximum of 36 inches of flexible conduit for recessed and semirecessed luminaires, equipment subject to vibration, noise transmission, or movement; and for transformers and motors.

1. Use LFMC in damp or wet locations subject to severe physical damage.

2. Use LFMC or LFNC in damp or wet locations not subject to severe physical damage.

V. 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.

W. 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 surfaces to provide a flat surface for a raintight connection between the box and cover plate or the supported equipment and box.

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

Y. Locate boxes so that cover or plate will not span different building finishes.

Z. 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.

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

3.03 FIRESTOPPING

A. Install firestopping at penetrations of fire-rated floor and wall assemblies. Comply with requirements in Section 07-84-13 "Penetration Firestopping."

3.04 PROTECTION

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

END OF SECTION 260533

City of Tucson Parks and Recreation 260543 - 1 Underground Ducts and Ochoa Park Improvements GLHN #22064.00 Raceways for Electrcial Systems

SECTION 260543

UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes:

1. Metal conduits and fittings, including GRC steel conduit.

2. Rigid nonmetallic duct.

3. Duct accessories.

4. Polymer concrete handholes and boxes with polymer concrete cover.

1.02 DEFINITIONS

A. Direct Buried: Duct or a duct bank that is buried in the ground, without any additional casing materials such as concrete.

B. Duct: A single duct or multiple ducts. Duct may be either installed singly or as component of a duct bank.

C. Duct Bank:

1. Two or more ducts installed in parallel, with or without additional casing materials.

2. Multiple duct banks.

1.03 ACTION SUBMITTALS

A. Product Data: For each type of product.

PART 2 PRODUCTS

2.01 METAL CONDUIT AND FITTINGS

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

B. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

1. ABB, Electrification Business.

2. AFC Cable Systems; Atkore International.

3. Allied Tube & Conduit; Atkore International.

4. Anaconda Sealtite; Anamet Electrical, Inc.

5. Calconduit; Atkore International.

6. Champion Fiberglass, Inc.

7. Electri-Flex Company.

8. FSR Inc.

9. Korkap.

10. NEC, Inc.

11. NewBasis.

12. Opti-Com Manufacturing Network, Inc (OMNI).

13. O-Z/Gedney; Emerson Electric Co., Automation Solutions, Appleton Group.

14. Patriot Aluminum Products, LLC.

15. Perma-Cote; Robroy Industries.

16. Picoma; Zekelman Industries.

17. Plasti-Bond; Robroy Industries.

18. Republic Conduit; Nucor Corporation, Nucor Tubular Products.

19. Southwire Company.

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