14. Division 26 Elecrical Requirements.pdf

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SECTION 260000

BASIC ELECTRICAL REQUIREMENTS

PART 1 GENERAL

1.01 SUMMARY

A. Section includes general requirements for electrical work including temporary facilities.

B. Refer to Statement of Work 01010 for requirements.

1.02 SITE VISITATION

A. The Contractor is encouraged to visit the site of this project and thoroughly familiarize himself with existing conditions before submitting a proposal on this work. Failure on the contractor's part to inspect the existing conditions will not be sufficient cause for extras after the contract is signed, by reason of unforeseen conditions.

1.03 CODES AND STANDARDS

A. The Contractor must keep fully informed of any and all existing and current ordinances, laws, and regulations of the city, county, state and national governments, and the local utilities, which are applicable to the materials, labor, and work under this contract. He must at all times observe and comply with such regulations and must protect and indemnify the FAA against any claims or liability arising from or based on any violations of same.

B. In case the specifications or drawings conflict with such ordinances, laws, or regulation, the conflicting portion of work affected must be installed in strict accordance with the regulations above mentioned; the remainder of the drawings and specification, however, must remain in full force. In no case will work or materials inferior to these specifications be accepted even if permitted by code.

C. In places where codes conflict, the local code will have preference.

D. Permits: All necessary licenses, fees, or permits for the carrying out of this work must be secured and paid for by this Contractor. The Contractor must be responsible for any damage sustained due to his failure to secure such licenses, fees, or permits. This Contractor must pay all taxes applicable to his work or materials.

E. Cooperation: This Contractor is cautioned to examine all drawings and specifications relating to all other branches of the work, and he must make proper provisions to receive all other work.

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F. This Contractor must provide all other contractors or sub-contractors whose work will be in contact with the work under this heading with approved shop drawings, and request approved copies of their drawings, so that proper cooperation between different trades must result therefrom.

G. This Contractor must cooperate fully with all other contractors on the work. If any part of this Contractor's work depends for proper execution or results upon the work of any other contractor, this Contractor must inspect and promptly report to the COR any defects in such work that render it unsuitable for such execution and results. Failure to so inspect and report must constitute an acceptance of the other contractor's work as fit and proper for the reception of this work.

H. To insure proper execution of his subsequent work, this Contractor must measure work already in place, and must at once report to the COR any discrepancies between executed work and the drawings.

1.04 DRAWINGS AND SPECIFICATIONS

A. The drawings and specifications are to be considered as mutually explanatory, and any work required by one but not the other must be performed as though required by both. The work must be accomplished as called for in the specifications and/or shown on the drawings.

B. The drawings constitute an integral part of this contract and must serve as the working drawings. They indicate the general layout of the complete electrical system. Data presented on these drawings are as accurate as preliminary surveys and planning can determine, but absolute accuracy is not guaranteed.

Field verifications of scale dimensions on drawings is the responsibility of the Contractor since final locations, distances and heights will be governed by actual field conditions.

C. The Contractor must check all Civil, Architectural, Structural, Plumbing, Air Conditioning, Heating and Ventilating, and Landscape drawings to avert possible installation conflicts. Discrepancies shown on different drawings or between drawings and actual field conditions or between drawings and specifications, or other necessary changes must be brought to the attention of the COR promptly for resolution. It must be the responsibility of the Contractor to check all schedules with the drawings in order to verify all quantities and special requirements before ordering equipment. The right is reserved to move the location of any outlet, access floor service module or lighting fixture, before installation, up to a 8'-0" radius without additional cost to the Owner.

D. Any errors or ambiguities in the drawings and specifications that are discovered by the Contractor must be reported to the COR before work is started. Omission of specific reference to any item obviously necessary for a complete installation and proper operation thereof, or any item omitted from schedule, but shown on the drawings, or vice versa, must be included in the contract without additional

260000 - 3 cost. In case of a dispute concerning the true intent and meaning of these drawings and specifications, the COR must interpret the same and the Contractor must proceed accordingly. Changes from the drawings to make the work conform to the structure and to fit the work of other trades must be submitted to the COR for approval before any deviations are made.

1.05 ACCEPTANCE OF BASE BID MATERIALS AND SUBSTITUTION REQUIREMENTS

A. The drawings and specifications are based upon materials and equipment of certain named manufacturers. Where more than one manufacturer is specified for a particular item of equipment, each manufacturer's equipment will be acceptable for Base Bid.

B. It is to be emphasized that all Contractor's bids must be based on equipment specified or as approved by the COR. Submission of substitute items of equipment by the contractor or manufacturer must be in no way binding on the COR for acceptance.

1.06 SCOPE OF WORK

A. The work and materials to be furnished by this Contractor consist generally of the following items:

1. Furnish complete installation of branch circuit wiring, wiring devices, and other work indicated on the drawings or called for in these specifications.

2. Grounding of the equipment of each electrical system.

3. Furnish temporary electric power service, power distribution and lighting to construction site.

4. Unless specified otherwise, furnish power conductors, conduit, wiring and make connections to equipment and devices installed under other Divisions and Sections.

5. Install telephone and data systems complete including cabling and terminations.

6. All necessary drilling, cutting, and patching of walls, floors, partitions, ceilings, etc., required for the proper installation of the work under this contract must be done at the contractor's expense in a neat, careful, and workmanlike manner and as approved by the COR. No concrete joints, beams, girders, or columns shall be cut by the contractor without first obtaining the written permission of the COR.

1.07 SUBMITTALS

A. Submittals shall be submitted in accordance with requirements stated in Statement of Work 01010.

B. Submittals must be complete and entire. Partial submittals will be returned to the Contractor for proper preparation and resubmission in complete form.

C. Any equipment or material submitted which are not in accordance with the specification requirements because of standard shop practice or other reasons

260000 - 4 must be specifically noted in the letter of transmittal including all points of variance. If the submittals are not marked in this way, the Contractor remains responsible to execute his work in accordance with the contract documents even if such submittals are approved.

D. The COR's approval of submittals indicates general compliance with the design concept, but must not be considered as permitting any departure from the contract documents. Nor shall it relieve the Contractor's responsibility for any errors in the submittal, such as in details, dimensions, materials, etc.

E. Contractor must submit dimensioned shop drawings of all electrical and telephone room layouts, and any other locations where electrical equipment is grouped. Shop drawings must show relationship of electrical equipment with the building structure and equipment of other trades. Shop drawings must also be provided for the following systems:

1. Telephone and data systems

2. Fire alarm system

1.08 PROTECTION AND RESPONSIBILITY

A. This Contractor must be responsible for the proper care of all his materials, equipment, etc., delivered at the site.

B. The Contractor must protect and be responsible for any damage to his work or materials, from the date of agreement until final acceptance is made, and must make good without cost to the Owner any damage or loss that may occur during this period. Contractor must handle all materials as directed so that the COR may inspect them at any time.

C. Should any material be found defective or in any way conflicting with the contract, this material, no matter in what stage of completion, may be rejected by the COR, and must be removed immediately.

D. No waste material or rubbish resulting from this work will be allowed to accumulate on or about the premises. Contractor must remove waste and debris promptly at his expense.

1.09 ACCEPTANCE

A. Final acceptance will be made upon approval of the Owner when all systems are completed and operating properly.

1.010 GUARANTEE

A. The Contractor must guarantee the apparatus as installed by him to perform as specified, and must guarantee to keep the entire system except lamps, as installed by him or his subcontractors, in repair and perfect working order for one year after date of substantial completion. The Contractor must furnish to the Owner, free of cost, all material, labor and other expenses necessary to comply

260000 - 5 with the above guarantee, said guarantee being based upon defective material, workmanship, and equipment performance.

1.011 AS-BUILT DRAWINGS AND OPERATING MANUALS

A. In order to provide accurate as-built drawings to the Owner, the Contractor must keep a complete set of Contract Drawings on which is shown in colored pencil any changes made in actual installation as to type, size, location, depth, routing, etc. of all equipment, conduit, fixtures, switches, panels, etc. The Contractor must deliver the as-built drawing set to the COR at the completion of the job and before final payment is made.

B. The Electrical Plot Plan must show by dimension, the final location and depth of all electrical, telephone or other communication buried conduits.

C. Operations Manual: Upon completion of the project and before final payment is made the Contractor must prepare and submit an operations manual for the COR's approval. The manual must include copies of complete submittal data as approved, shop drawings, engineering data, and manufacturer's operating and maintenance bulletins, and stock item parts list for each item of equipment, as well as names, phone numbers and addresses for each manufacturer. This data must be bound in hard cover vinyl three-ring binders with clear sleeve on front, back and spine, and indexed by material type. After approval by the COR, submit four (4) copies for the Owner's retention.

1.012 TEMPORARY ELECTRICAL FACILITIES

A. The types of temporary facilities and uses requiring electrical work include (but are not necessarily limited to) the following:

1. Temporary power distribution.

2. Temporary lighting.

3. Temporary use of permanent electrical facilities.

B. Refer to Division 1 for basic requirements and administrative requirements relating to electrical work of temporary facilities.

1.013 EXCAVATION WORK

A. Prior to any excavation, 72 hours prior notification must be made to the Department of Airports, Planning and Development Division as an agent of the Oklahoma City Airport Trust. It is the policy of the Oklahoma City Airport Trust and the Department of Airports that excavation for maintenance, repair or construction not be undertaken over, crossing or near energized underground electric feeders, distribution or service lines; pressurized underground natural gas distribution or service lines; or pressurized underground water or fire suppression pipelines. The potential for destruction or damage to equipment and property, possible personal injury, and long-term interruption of essential tenant missions and activities has made it necessary that all utility lines be de-energized or de-pressurized prior to excavation.

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B. Excavation procedures must meet the requirements set forth in the Standard Specifications for Construction of Public Improvements for the City of Oklahoma City, Section 110.14.

PART 2 PRODUCTS

2.01 TEMPORARY ELECTRICAL FACILITIES

A. Provide either new or used materials and equipment for electrical temporary facilities. Material must be suitable for intended uses and must ensure safe, adequate performance of the facilities in accordance with governing regulations and codes.

PART 3 EXECUTION

3.01 TEMPORARY ELECTRICAL FACILITIES

A. General: Connect and terminate electrical temporary facilities at locations as determined by the General Contractor and COR to fulfill project requirements.

Install meters where required for the proper allocation of charges for temporary power use. Unless specifically indicated otherwise elsewhere in these specifications, the General Contractor will pay the electric utility bills to the local power company during the period of construction.

B. Electrical Work:

1. Temporary power distribution (temporary wiring) for the purpose of supplying convenience outlets; connections for construction tools and machines including hoists/cranes and elevators; connections for temporary pumping, heating; temporary lighting; and similar facilities for construction, general services, security and protection. Work includes outlets with ground fault circuit interrupter protection, overload-protected disconnect switches, and similar devices and facilities; but does not include extension cords and actual temporary mechanical equipment connections.

2. Temporary lighting for construction areas; for temporary offices, shops, storage sheds and similar temporary space enclosures; for exterior construction areas, parking roadways and walkways; and for special lighting for security, protection and project identification; but excluding plug-in type task lighting (defined as "tools"), needed to supplement general temporary lighting for specific construction activities.

3. A ground fault protective system per the N.E.C. must be installed and maintained and will be subject to the approval of the authority having jurisdiction.

4. Coordinate with the removal and installation of building service transformers to be performed by others.

C. Removal and Restoration

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1. When no longer needed for construction work, remove electrical temporary facilities. Repair and restore or replace work damaged by installation and operation of electrical temporary facilities. Electrical equipment and devices installed as temporary facilities will, upon removal, remain the property of the Installer. All debris and unused materials must be removed from the site at the Contractors expense.

2. Restore any permanent equipment used for temporary facilities to original condition including lamps that have been in operation for one half or more of their rated life. All equipment must be cleaned and touched up with manufacturer's matching paint. Light fixtures must be carefully cleaned so as to not scratch or dull specular surfaces.

END OF SECTION

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SECTION 260519

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

PART 1 - GENERAL

1.01 RELATED DOCUMENTS

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

1.02 SUMMARY

A. Section Includes:

1. Building wires and cables rated 600 V and less.

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

1.03 DEFINITIONS

A. VFC: Variable frequency controller.

1.04 ACTION SUBMITTALS

A. Product Data: For each type of product.

PART 2 - PRODUCTS

2.01 CONDUCTORS AND CABLES

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. Alpha Wire.

2. Belden Inc.

3. General Cable Technologies Corporation.

4. Southwire Incorporated.

B. Copper Conductors: Comply with NEMA WC 70/ICEA S-95-658.

C. Conductor Insulation: Comply with NEMA WC 70/ICEA S-95-658 for Type THHN-2-THWN-2.

2.02 CONNECTORS AND SPLICES

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. Hubbell Power Systems, Inc.

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2. Ideal Industries, Inc.

3. Ilsco; a branch of Bardes Corporation.

4. NSi Industries LLC.

5. O-Z/Gedney; a brand of the EGS Electrical Group.

6. 3M; Electrical Markets Division.

7. Tyco Electronics.

B. Description: Factory-fabricated connectors and splices of size, ampacity rating, material, type, and class for application and service indicated.

2.03 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 NFPA 70.

PART 3 - EXECUTION

3.01 CONDUCTOR MATERIAL APPLICATIONS

A. Feeders: Copper. Solid for No. 10 AWG and smaller; stranded for No. 8 AWG and larger.

B. Branch Circuits: Copper. Solid for No. 10 AWG and smaller; stranded for No. 8 AWG and larger, except VFC cable, which must be extra flexible stranded.

3.02 CONDUCTOR INSULATION AND MULTICONDUCTOR CABLE

APPLICATIONS AND WIRING METHODS

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

B. Feeders Concealed in Ceilings, Walls, Partitions, and Crawlspaces:

Type THHN-2-THWN-2, single conductors in raceway.

C. Feeders Concealed in Concrete, below Slabs-on-Grade, and Underground:

Type THHN-2-THWN-2, single conductors in raceway.

D. Feeders Installed below Raised Flooring: Type THHN-2-THWN-2, single conductors in raceway.

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

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

G. Branch Circuits Installed below Raised Flooring: Type THHN-2-THWN-2, single conductors in raceway.

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H. Cord Drops and Portable Appliance Connections: Type SO, hard service cord with stainless-steel, wire-mesh, strain relief device at terminations to suit application.

3.03 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 260533 "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 260529 "Hangers and Supports for Electrical Systems."

3.04 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 and that possess equivalent or better mechanical strength and insulation ratings than unspliced conductors.

1. Use oxide inhibitor in each splice, termination, and tap for aluminum conductors.

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

3.05 IDENTIFICATION

A. Identify and color-code conductors and cables according to Section 260553 "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.

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3.06 SLEEVE AND SLEEVE-SEAL INSTALLATION FOR ELECTRICAL

PENETRATIONS

A. Install sleeves and sleeve seals at penetrations of exterior floor and wall assemblies. Comply with requirements in Section 260544 "Sleeves and Sleeve Seals for Electrical Raceways and Cabling."

3.07 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 078413 "Penetration Firestopping."

3.08 FIELD QUALITY CONTROL

A. Perform the following tests and inspections:

1. After installing conductors and cables and before electrical circuitry has been energized, test service entrance and feeder conductors for compliance with requirements.

2. Perform each visual and mechanical inspection and electrical test stated in NETA Acceptance Testing Specification. Certify compliance with test parameters.

B. Test and Inspection Reports: Prepare a written report to record the following:

1. Procedures used.

2. Results that comply with requirements.

3. Results that do not comply with requirements and corrective action taken to achieve compliance with requirements.

C. Cables will be considered defective if they do not pass tests and inspections.

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SECTION 260526

GROUNDING AND BONDING

PART 1 GENERAL

A. The general provisions of the contract, including General and Supplementary Conditions and General Requirements (if any), apply to the work specified in this section.

1.02 DESCRIPTION OF WORK

A. The requirements of this section apply to the grounding work specified elsewhere in these specifications.

B. The extent of grounding work is indicated on the drawings and by the requirements of this section.

1. Power system grounding.

2. Equipment grounding

1.03 QUALITY ASSURANCE

A. NEC Compliance: Comply with the applicable portions of the National Electrical Code (NFPA No. 70) as applicable to grounding of main service, branch and feeder circuits, conduit, equipment, separately derived systems, transformers, etc.

B. FAA Std 19a and 20a: Comply with applicable portions the FAA standards for lightning protection, grounding, bonding and shielding requirements for facilities and equipment.

1.04 SUBMITTALS

A. Product Data: Submit manufacturer's data on wire, conduit, connectors, rods, accessories and devices required for a complete and proper building ground system.

1.05 TESTS

A. Measure ground resistance with earth test megger and install additional ground rods and conductors as required until resistance to ground complies with Code requirements.

PART 2 PRODUCTS

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2.01 MATERIAL

A. Make cable and wire connections for splicing or terminating with compression deforming type connectors as manufactured by Burndy Corp., Thomas & Betts Co., Inc., Dossert Manufacturing Corp., Ilsco Corp., or accepted substitute.

B. Twist-on insulated connectors, of proper size and resistant to vibration, may be used for wires smaller than #6 AWG. Use twist-on connectors as manufactured by Minnesota Mining & Manufacturing Co., Thomas & Betts Co., Inc., Ideal Industries, Inc., or approved equal.

C. Provide terminal connectors with the hole sizes and spacing in accordance with

NEMA standards. Provide terminal connectors with two holes in tongue for use on conductor sizes 250 MCM and larger. Terminal connectors are not required for connections to circuit breakers in the lighting and/or receptacle panels.

D. Insulate connections made with non-insulated connectors. Use three layers of plastic tape, each layer being half lapped. Use No. 35+ plastic tape as manufactured by Minnesota Mining and Manufacturing Co., or similar and equal plastic tape as manufactured by Plymouth Rubber Co.

PART 3 EXECUTION

3.01 POWER SYSTEM GROUNDING

A. Circuit Grounding: Install grounding bushings, grounding studs, and grounding jumpers at pullboxes, motors and panelboards.

B. Bonding Jumpers: Provide Green insulation, sized correlated with over-current device protecting the wire, attach to grounding bushings on conduit, to lugs on boxes and other enclosures. Connection to neutral only at service main neutral bar.

C. Bonding Wires: Install bonding wire in flexible conduit connected at each end to a grounding bushing.

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SECTION 260529

HANGERS AND SUPPORTS

PART 1 - GENERAL

1.01 RELATED DOCUMENTS

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

1.02 SUMMARY

A. This Section includes the following:

1. Hangers and supports for electrical equipment and systems.

2. Construction requirements for concrete bases.

1.03 DEFINITIONS

A. EMT: Electrical metallic tubing.

B. RMC: Rigid metal conduit.

1.04 PERFORMANCE REQUIREMENTS

A. Design supports for multiple raceways capable of supporting combined weight of supported systems and its contents.

B. Design equipment supports capable of supporting combined operating weight of supported equipment and connected systems and components.

1.05 ACTION SUBMITTALS

A. Product Data: For the following:

1. Steel slotted support systems.

1.06 QUALITY ASSURANCE

A. Welding: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding Code - Steel."

B. Comply with NFPA 70.

1.07 COORDINATION

A. Coordinate size and location of concrete bases. Cast anchor-bolt inserts into bases. Concrete, reinforcement, and formwork requirements are specified together with concrete Specifications.

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B. Coordinate installation of roof curbs, equipment supports, and roof penetrations.

These items are specified in Section 077200 "Roof Accessories."

PART 2 - PRODUCTS

2.01 SUPPORT, ANCHORAGE, AND ATTACHMENT COMPONENTS

A. Steel Slotted Support Systems: Comply with MFMA-4, factory-fabricated components for field assembly.

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

a. Allied Tube & Conduit.

b. Cooper B-Line, Inc.; a division of Cooper Industries.

c. ERICO International Corporation.

d. GS Metals Corp.

e. Thomas & Betts Corporation.

f. Unistrut; Tyco International, Ltd.

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

3. Nonmetallic Coatings: Manufacturer's standard PVC, polyurethane, or polyester coating applied according to MFMA-4.

4. Painted Coatings: Manufacturer's standard painted coating applied according to MFMA-4.

5. Channel Dimensions: Selected for applicable load criteria.

B. Raceway and Cable Supports: As described in NECA 1 and NECA 101.

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

D. Support for Conductors in Vertical Conduit: Factory-fabricated assembly consisting of threaded body and insulating wedging plug or plugs for non-armored electrical conductors or cables in riser conduits. Plugs must have number, size, and shape of conductor gripping pieces as required to suit individual conductors or cables supported. Body must be malleable iron.

E. Structural Steel for Fabricated Supports and Restraints: ASTM A 36/A 36M, steel plates, shapes, and bars; black and galvanized.

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

1. Powder-Actuated Fasteners: Threaded-steel stud, for use in hardened portland cement concrete, steel, or wood, with tension, shear, and pullout capacities appropriate for supported loads and building materials where used.

a. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be

260529-3 incorporated into the Work include, but are not limited to, the following:

1) Hilti Inc.

2) ITW Ramset/Red Head; a division of Illinois Tool Works, Inc.

3) MKT Fastening, LLC.

4) Simpson Strong-Tie Co., Inc.; Masterset Fastening

Systems Unit.

2. 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 in which used.

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

1) Cooper B-Line, Inc.; a division of Cooper Industries.

2) Empire Tool and Manufacturing Co., Inc.

3) Hilti Inc.

4) ITW Ramset/Red Head; a division of Illinois Tool Works, Inc.

5) MKT Fastening, LLC.

3. Concrete Inserts: Steel or malleable-iron, slotted support system units similar to MSS Type 18; complying with MFMA-4 or MSS SP-58.

4. Clamps for Attachment to Steel Structural Elements: MSS SP-58, type suitable for attached structural element.

5. Through Bolts: Structural type, hex head, and high strength. Comply with ASTM A 325.

6. Toggle Bolts: All-steel springhead type.

7. Hanger Rods: Threaded steel.

2.02 FABRICATED METAL EQUIPMENT SUPPORT ASSEMBLIES

A. Description: Welded or bolted, structural-steel shapes, shop or field fabricated to fit dimensions of supported equipment.

B. Materials: Comply with requirements in Section 055000 "Metal Fabrications" for steel shapes and plates.

PART 3 - EXECUTION

3.01 APPLICATION

A. Comply with NECA 1 and NECA 101 for application of hangers and supports for electrical equipment and systems except if requirements in this Section are stricter.

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

C. Multiple Raceways or Cables: Install trapeze-type supports fabricated with steel slotted or other 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 single-bolt conduit clamps.

D. 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.

B. Raceway Support Methods: In addition to methods described in NECA 1, EMT, IMC, and RMC may be supported by openings through structure members, as permitted in 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 must 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. Instead of expansion anchors, powder-actuated driven threaded studs provided with lock washers and nuts may be used in existing standard-weight concrete 4 inches thick or greater. Do not use for anchorage to lightweight-aggregate concrete or for slabs less than 4 inches thick.

6. To Steel: Beam clamps (MSS Type 19, 21, 23, 25, or 27) complying with

MSS SP-69.

7. To Light Steel: Sheet metal screws.

8. 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 by means that meet seismic-restraint strength and anchorage requirements. Plywood on wall is not required.

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

3.03 INSTALLATION OF FABRICATED METAL SUPPORTS

A. Comply with installation requirements in Section 055000 "Metal Fabrications" for site-fabricated metal supports.

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

C. Field Welding: Comply with AWS D1.1/D1.1M.

3.04 CONCRETE BASES

A. Construct concrete bases of dimensions indicated but not less than 4 inches larger in both directions than supported unit, and so anchors will be a minimum of 10 bolt diameters from edge of the base.

B. Use 3000-psi, 28-day compressive-strength concrete. Concrete materials, reinforcement, and placement requirements are specified in Section 033000 "Cast-in-Place Concrete."

C. Anchor equipment to concrete base.

1. Place and secure anchorage devices. Use supported equipment manufacturer's setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

2. Install anchor bolts to elevations required for proper attachment to supported equipment.

3. Install anchor bolts according to anchor-bolt manufacturer's written instructions.

3.05 PAINTING

A. Touchup: Clean field welds and abraded areas of shop paint. Paint exposed areas immediately after erecting hangers and supports. Use same materials as used for shop painting. Comply with SSPC-PA 1 requirements for touching up field-painted surfaces.

1. Apply paint by brush or spray to provide minimum dry film thickness of 2.0 mils.

B. Touchup: Comply with requirements in Section 099113 "Exterior Painting" and Section 099123 "Interior Painting" for cleaning and touchup painting of field welds, bolted connections, and abraded areas of shop paint on miscellaneous metal.

C. Galvanized Surfaces: Clean welds, bolted connections, and abraded areas and apply galvanizing-repair paint to comply with ASTM A 780.

END OF SECTION 260529

260533 - 1

SECTION 260533

RACEWAY AND BOXES

PART 1 GENERAL

1.01 SUMMARY

A. Section includes conduit and tubing, surface raceways, wireways, outlet boxes, pull and junction boxes, and handholes.

1.02 REFERENCES

A. American National Standards Institute:

1. ANSI C80.1 - Rigid Steel Conduit, Zinc Coated.

2. ANSI C80.3 - Specification for Electrical Metallic Tubing, Zinc Coated.

3. ANSI C80.5 - Aluminum Rigid Conduit - (ARC).

B. National Electrical Manufacturers Association:

1. NEMA 250 - Enclosures for Electrical Equipment (1000 Volts Maximum).

2. NEMA FB 1 - Fittings, Cast Metal Boxes, and Conduit Bodies for Conduit and Cable Assemblies.

3. NEMA OS 1 - Sheet Steel Outlet Boxes, Device Boxes, Covers, and Box

Supports.

4. NEMA OS 2 - Nonmetallic Outlet Boxes, Device Boxes, Covers, and Box

Supports.

5. NEMA RN 1 - Polyvinyl Chloride (PVC) Externally Coated Galvanized Rigid

Steel Conduit and Intermediate Metal Conduit.

6. NEMA TC 2 - Electrical Polyvinyl Chloride (PVC) Tubing and Conduit.

7. NEMA TC 3 - PVC Fittings for Use with Rigid PVC Conduit and Tubing.

C. Underwriters Laboratory Listed and Labeled.

D. National Electrical Code (NFPA 70)

E. FAA Standards, including Division 27 Telecommunications Section 27000 Standard.

1.03 SYSTEM DESCRIPTION

A. Raceway and boxes located as indicated on Drawings, and at other locations required for splices, taps, wire pulling, equipment connections, and compliance with regulatory requirements. Raceway and boxes are shown in approximate locations unless dimensioned. Provide raceway as required to form a complete wiring system.

B. Underground Utility Structures (Ductbanks): Provide Schedule 40 PVC conduit, unless noted otherwise.

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C. Underground More than 5 feet (1500 mm) outside Foundation Wall: Provide Schedule 40 PVC Conduit. Provide cast concrete handholes, unless noted otherwise.

D. Underground Within 5 feet (1500 mm) from Foundation Wall: Provide PVC coated rigid galvanized steel conduit. Provide cast concrete handholes, unless noted otherwise.

E. Concealed In or Under Slab on Grade (Not leaving building): Provide Schedule 40 PVC Conduit with PVC coated rigid galvanized steel sweep and riser. Provide cast, or concrete tight steel floor boxes, unless noted otherwise.

F. Concealed In Slab Above Grade: Provide PVC coated rigid galvanized steel conduit. Provide cast, or concrete tight steel floor boxes, unless noted otherwise.

G. Concealed Wet and Damp Locations: Provide Electrical Metallic Tubing. Provide steel outlet, pull, and junction boxes with weatherproof-while-in-use device covers.

Provide flush mounted boxes, unless noted otherwise.

H. Exposed Wet and Damp Locations: Provide Rigid Galvanized Steel Conduit.

Provide cast metal outlet boxes with weatherproof-while-in-use covers. Provide steel pull, and junction boxes.

I. Concealed Dry Locations: Provide Electrical Metallic Tubing. Provide steel outlet, pull, and junction boxes. Provide flush mounted boxes, unless noted otherwise.

J. Exposed Dry Locations: Provide Rigid Galvanized Steel Conduit. Provide cast metal outlet boxes. Provide steel pull, and junction boxes.

1.04 DESIGN REQUIREMENTS

A. Minimum Interior Power System Raceway Size: 3/4 inch.

B. Minimum Exterior Power System Raceway Size: 1 inch

C. Minimum Telephone / Data System Raceway Size: 1-1/4 inch.

D. Minimum CCTV / Audio-Visual System Raceway Size: 3/4 inch.

1.05 SUBMITTALS

A. Submittal procedures: Comply with submittal procedures as specified in the Statement of Work 01010 and Section 260000.

B. Product Data: Submit for the following:

1. Flexible metal conduit.

2. Liquidtight flexible metal conduit.

3. Nonmetallic conduit.

4. Raceway fittings.

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5. Conduit bodies.

6. Surface raceway.

7. Wireway.

8. Pull and junction boxes.

9. Device boxes.

10. Handholes.

C. Manufacturer's Installation Instructions: Submit application conditions and limitations of use stipulated by Product testing agency specified under Regulatory Requirements. Include instructions for storage, handling, protection, examination, preparation, and installation of Product.

1.06 CLOSEOUT SUBMITTALS

A. Refer to Statement of Work 01010, Section 8.3 - Closeout Procedures: Submittals

B. Project Record Documents:

1. Record actual routing of conduits larger than 2 inch trade size.

2. Record actual locations and mounting heights of outlet, pull, and junction boxes.

1.07 DELIVERY, STORAGE, AND HANDLING

A. Refer to Statement of Work 01010, Section 6.3 – Storage and Protection: Product storage and handling requirements.

B. Protect conduit from corrosion and entrance of debris by storing above grade.

Provide appropriate covering.

C. Protect PVC conduit from sunlight.

1.08 COORDINATION

A. Refer to Statement or Work 01010 for all administrative requirements regarding coordination and project conditions.

B. Coordinate mounting heights, orientation and locations of outlets mounted above counters, benches, and backsplashes.

C. Coordinate mounting heights, orientation and locations of Fire Alarm System outlet boxes.

D. Coordinate raceway expansion fittings with seismic and expansion joints.

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PART 2 PRODUCTS

2.01 RACEWAYS:

A. For each electrical raceway system indicated, provide a complete assembly of conduit and tubing with fittings, including, but not necessarily limited to, connectors, nipples, couplings, expansion fittings, bonding jumpers, conduit seals, conduit bodies and other components and accessories as needed to form a complete system of the type indicated.

2.02 METAL CONDUIT

A. Manufacturer: Company specializing in manufacturing Products specified in this section with minimum five years documented experience.

B. Rigid Galvanized Steel Conduit:

1. Rigid galvanized steel conduit must be hot-dip galvanized steel with threads hot-dip galvanized after cutting.

2. Rigid galvanized steel conduit must be produced in accordance with the following standards:

a. U.L. Safety Standard #6

b. ANSI C80.1

c. Federal Specification WW-C-581E

d. CSA Standard C22.22 #45

C. Fittings and Conduit Bodies: NEMA FB 1; material to match conduit. Conduit bodies must be constructed of cast alloy material.

2.03 PVC COATED RIGID GALVINIZED STEEL CONDUIT

A. Manufacturers:

1. OCAL.

2. Robroy.

B. Product Description: NEMA RN 1; rigid steel conduit with external PVC coating.

1. The galvanized conduit, prior to plastic coating, must be new, unused material and conform to specifications given above for rigid galvanized steel conduit.

2. The exterior galvanized surfaces must be coated with primer before PVC coating to insure a bond between the zinc substrate and the PVC coating.

3. Nominal thickness of the exterior coating must be 40 mils.

4. A PVC sleeve extending one pipe diameter or two inches, whichever is less, must be formed at every female conduit opening on fittings except unions. The inside diameter of the sleeve must be the same as the outside diameter of the conduit to be used.

5. The PVC coating on the exterior of conduit couplings must have a series of longitudinal ribs 40 mils thick to protect the coating from tool damage during installation.

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6. A urethane coating must be uniformly and consistently applied to the interior of all conduit and fittings. This internal coating must be a nominal two mil thickness. Conduit having areas with thin or no coating will not be accepted.

7. All male and female threads on conduit, elbows and nipples must be protected by application of a urethane coating.

C. Fittings and Conduit Bodies: NEMA FB 1; steel fittings with external PVC coating to match conduit.

1. Conduit bodies must be supplied with stainless steel cover screws. Screw heads must be encapsulated with plastic to assure corrosion protection.

2.04 FLEXIBLE METAL CONDUIT

A. Manufacturer: Company specializing in manufacturing Products specified in this section with minimum five years documented experience.

B. Product Description: Interlocked reduced wall hot dipped galvanized steel construction.

C. Fittings: Squeeze type meeting NEMA FB 1.

2.05 LIQUIDTIGHT FLEXIBLE METAL CONDUIT

A. Manufacturers: Company specializing in manufacturing Products specified in this section with minimum five years documented experience.

B. Product Description: Interlocked steel construction with PVC jacket. Constructed of single strip, continuous, flexible, interlocked, double wrapped steel, galvanized inside and outside; forming smooth internal wiring channel; liquid tight jacket of flexible polyvinyl chloride (PVC). Provide separate green insulated equipment grounding conductor.

C. Fittings: NEMA FB 1.

2.06 ELECTRICAL METALLIC TUBING (EMT)

A. Manufacturer: Company specializing in manufacturing Products specified in this section with minimum five years documented experience.

B. Product Description: ANSI C80.3; galvanized tubing.

C. Fittings and Conduit Bodies: NEMA FB 1; steel compression type. Set screw or indenter type fittings are not acceptable.

2.07 NONMETALLIC CONDUIT

A. Manufacturer: Company specializing in manufacturing Products specified in this section with minimum five years documented experience.

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B. Product Description: NEMA TC 2; Schedule 40 PVC, unless noted otherwise.

C. Fittings and Conduit Bodies: NEMA TC 3.

2.08 SURFACE METAL RACEWAY

A. Manufacturer: Company specializing in manufacturing Products specified in this section with minimum five years documented experience.

B. Product Description: Sheet metal channel with fitted cover, suitable for use as surface metal raceway.

C. Size: As indicated on drawings.

D. Finish: Gray enamel, unless noted otherwise.

E. Fittings, Boxes, and Extension Rings: Furnish manufacturer's standard accessories as required to form a complete system; match finish on raceway.

2.09 WIREWAY

A. Manufacturer: Company specializing in manufacturing Products specified in this section with minimum five years documented experience.

B. Product Description: Provide general purpose, oiltight and dust-tight, or raintight type wireways as required by the environment installed or as otherwise described on the drawings.

C. Knockouts: Manufacturer's standard for general purpose wireways only.

D. Size: As indicated on Drawings.

E. Cover: Hinged cover, unless noted otherwise. Provide full gaskets where required.

F. Connector: Flanged, unless noted otherwise.

G. Fittings: As required or noted on drawings.

H. Finish: Rust inhibiting primer coating with gray enamel finish, unless noted otherwise.

2.010 OUTLET BOXES

A. Manufacturer: Company specializing in manufacturing Products specified in this section with minimum five years documented experience.

B. Boxes must not be less than 1-1/2 inches deep except where shallower boxes required by structural conditions indicated on the drawings or in other sections of these specifications are approved. Boxes for other than lighting-fixture outlets

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C. Sheet Metal Outlet Boxes: NEMA OS 1, galvanized steel.

1. Luminaire and Equipment Supporting Boxes: Rated for weight of equipment supported; furnish 1/2 inch (13 mm) male fixture studs where required.

2. Concrete Boxes: Concrete type for poured in place and CMU.

D. Cast Boxes: NEMA FB 1, Type FD, cast alloy, unless noted otherwise. Furnish heavy duty gasketed cover by box manufacturer. Furnish threaded hubs.

E. Weatherproof Outlet Boxes: Provide corrosion-resistant cast metal weatherproof outlet wiring boxes, of the type, shape and size, including depth of box, with threaded conduit ends, cast metal, or non-metallic face plate with weatherproof-while-in-use cover (Taymac or approved equal) suitably configured for each application, including face plate gasket and corrosion proof fasteners.

F. Access Floor Service Modules: Provide 6"x8"x5" semi-flush, multi-system boxes for installation in access floor panel. Boxes must be configured with (2) duplex receptacles as specified under Wiring Devices and a Combination Telephone / Data outlet as specified under Division 25. AFC #AFM5 or approved equal.

G. Wall Plates for Finished Areas: As specified in Section 262726.

H. Wall Plates for exposed work in unfinished areas: Furnish heavy duty gasketed cover.

2.011 PULL AND JUNCTION BOXES

A. Manufacturer: Company specializing in manufacturing Products specified in this section with minimum five years documented experience.

B. Sheet Metal Boxes: NEMA OS 1, galvanized steel.

1. NEMA 1 for dry locations.

2. NEMA 12 for industrial locations.

3. NEMA 4 for wet locations.

4. NEMA 4X for corrosive locations.

5. Or as noted on the drawings.

C. Hinged Enclosures: As specified on plans.

D. Precast Handholes: Die-molded, glass-fiber, concrete composite hand holes:

1. Cable Entrance: Pre-cut cable entrance in bottom, unless noted otherwise.

2. Cover: Glass-fiber concrete composite, weatherproof cover with non-skid finish.

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PART 3 EXECUTION

3.01 EXAMINATION

A. Refer to Statement or Work 01010 for all administrative requirements regarding Project inspections, coordination and project conditions.

B. Verify outlet locations and routing and termination locations of raceway prior to rough-in.

3.02 INSTALLATION

A. Ground and bond raceway and boxes in accordance with Section 260526.

B. Identify raceway and boxes in accordance with Section 260553.

C. Arrange raceway and boxes to maintain headroom and present neat appearance.

3.03 INSTALLATION - RACEWAY

A. Raceway routing is shown in approximate locations unless dimensioned. Route as required to form a complete wiring system.

B. Install conduit and tubing products in accordance with the manufacturer's written instructions, the applicable requirements of NEC, the National Electrical Contractors Association's "Standard of Installation", and in accordance with recognized industry practices to ensure that products serve the intended function.

C. Conduits must be of sizes required to accommodate the number and size of conductors required in accordance with the tables given in the latest edition of the National Electrical Code. Where space will not permit the installation of one conduit of sufficient size to contain the conductors required, two conduits must be provided, each conduit must contain duplicate phase, neutral and grounding conductors. The number and size of conduits indicated on the drawings are minimum for the various systems required. If larger conduits or greater numbers are required, they must be provided as necessary to accommodate the wiring as recommended by the manufacturer supplying the particular equipment.

D. Arrange raceway supports to prevent deflection or misalignment during wiring installation.

E. Support raceway using coated steel or malleable iron straps, lay-in adjustable hangers, clevis hangers, and split hangers.

F. Group related raceway; support using conduit rack. Construct rack using steel channel; provide space on each for 25 percent additional raceways.

G. Do not support raceway with wire or perforated pipe straps. Remove wire used for temporary supports

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H. Do not attach raceway to ceiling support wires or other piping systems.

I. Construct wireway supports from steel channel as specified.

J. Route exposed raceway parallel and perpendicular to walls.

K. Route raceway installed above accessible ceilings parallel and perpendicular to walls.

L. Route conduit in and under slab from point-to-point.

M. Maximum Size Conduit in Slab Above Grade:

1. All conduits installed in concrete slabs must not be larger in outside diameter than 1/3 the thickness of the slab, wall, or beam in which they are embedded.

2. Conduits must be positioned in the middle third of the slab thickness and must be spaced laterally a minimum of three diameters.

3. In the slabs…