ATT_02a_Division_26_Electrical.pdf

1 Division 26 - Electrical

DIVISION 26 - ELECTRICAL

SECTION 26000- GENERAL CONDITIONS

PART 1 - GENERAL

A. Summary:

1. The Contractor will provide all services as defined by the specifications, the drawings, and in the Contract Scope of Work.

B. Quality Assurance:

1. All Codes and Standards referenced to be the latest published edition, unless otherwise noted.

2. Any conflicts between design documents and various Codes and Standards are to be brought to attention of the ESD Project Engineer prior to bid for resolution.

3. Codes:

a. National Electric Code (NEC)

b. Uniform Facilities Standard (UFC)

4. Standards:

a. The Specifications and Standards of the following organizations are by reference made a part of electrical Specifications.

1. Association of Edison Illuminating Companies (AEIC).

2. Institute of Electrical and Electronic Engineers (IEEE).

3. American National Standard Institute (ANSI).

4. American Society for Testing and Materials (ASTM).

5. Electrical Testing Laboratories (ETL).

6. Instrument Society of America (ISA).

7. National Electrical Testing Association (NETA).

8. National Electrical Contractors Association (NECA).

9. National Fire Protection Association (NFPA).

10. Reflector Luminaire Manufacturers (RLM).

11. Underwriters Laboratories, Inc. (UL).

12. National Electrical Manufacturers Association (NEMA).

5. Regulatory Agencies:

a. Occupational Safety and Health Administration (OSHA).

C. Interpretations:

1. In cases where there are differences between what is called for on the drawings and interpretations of governing Codes and Standards, it will be the Contractor’s responsibility to ensure that the installation is made according to the governing

Codes and Standards and the ESD Engineer and ESD Inspection representative is made aware of the situation.

D. Interferences:

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1. The drawings are generally of a diagrammatic nature. Except, where dimensioned locations are shown, plan and coordinate the work to eliminate interferences with other trades.

Section 26000- General Conditions Cont.

E. Substitutions:

1. Manufacturer’s catalog numbers noted in the specifications and on the drawings establish the Quality level of the equipment and materials and are not intended to limit competition. Substitutions are permitted provided that the substituted equipment is of the same level of quality as the originally specified equipment.

PART 2 – PRODUCTS

A. Contractor’s Submittals:

1. Throughout Division 26 requirements for various reports, confirmations and drawings which the Contractor is required to submit to the ESD PM thorough

MICC, for review.

B. Electrical Materials:

1. Electrical materials will be new and will be listed by the UL wherever Standards have been established by the agency. In lieu of the UL listing, consideration will be given to certified test reports of an adequately equipped, recognized, independent testing laboratory competent to perform such testing, indicating conformance to all requirements of the applicable UL standard.

2. When materials or equipment must conform to the Standards of organizations such as ANSI, NEMA, and UL, proof of such conformance will be submitted to the ESD Engineer for approval. Unless specifically exempted in the

Construction Services Contract Document, equipment listed solely by IEC is not acceptable. If an organization uses a label or listing as proof of conformance, this will be acceptable evidence, unless otherwise specified in the individual specifications. In lieu of the label or listing, the Contractor will submit a certificate from an independent testing organization which is competent to perform acceptable testing and must be approved by the ESD

Engineer.

C. Cataloged Products:

1. Materials and equipment will be the cataloged product of manufacturers regularly engaged in the production of such materials or equipment and will be thee manufacturer’s latest standard design that complies with the specification requirements. When two or more units of the same type, class and size of equipment are required, these units will be products of a single manufacturer;

the component parts will be of the manufacturer of the main product. Each major component of the equipment will have the manufacturer’s name, address, and the model and serial, number of a nameplate securely affixed in a

3 Division 26 - Electrical conspicuous location; the nameplate of the distributing agent is not an acceptable substitute.

PART 3 - EXECUTION: (Not Applicable)

End of Section- 26000

4 Division 26 - Electrical

SECTION 26050- BASIC ELECTRICAL MATERIALS AND METHODS

PART 1 – GENERAL

F. Summary:

1. This Section includes the following:

a. Supporting devices for electrical components.

b. Cutting and patching for electrical construction.

c. Equipment Pads (concrete).

d. Touchup Painting.

G. Quality Assurance:

1. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

H. Coordination:

1. Coordinate chases, slots, inserts, sleeves, and openings with general construction work and arrange in building structure during progress of construction to facilitate the electrical installations that follow.

a. Set inserts and sleeves in poured-in-place concrete, masonry work, and other structural components as they are constructed.

2. Sequence, coordinate, and integrate electrical materials and equipment for efficient flow of Work. Coordinate installation of large equipment requiring positioning before closing in the building.

3. Coordinate electrical service connections to components furnished by utility organizations.

a. Coordinate installation and connection of exterior underground and overhead utilities and service.

b. Comply with requirements of authorities having jurisdiction and of utilities organizations providing electrical power and other services.

PART 2 - PRODUCTS

A. Supporting Devices:

1. Conduit will be supported in a method and at a specing as approved by NEC, except as described herein.

2. Conduit will be supported by approved pipe straps or clamps.

a. Conduits installed on the interior of the building outside walls will be spaced off the wall surface a minimum of 1/4 “using “clamp-backs” or strut.

3. Pipe straps or clamps will be secured by means of:

a. Toggles bolts on hollow masonry.

b. Metal expansion bolts, or standard pre-set inserts, on concrete or solid masonry.

c. Machine screws or bolts on metal surfaces.

Section 26050- Basic Electrical Materials and Methods Cont.

5 Division 26 - Electrical

d. Wood screws on wood construction.

B. Concrete Bases:

1. Concrete Forms and Reinforcement Materials: As specified in Division 3, Section “Cast-in-Place Concrete”.

2. Concrete- 3000-psi, 28-day compressive strength as specified in Division 3, Section “Cast-in-Place Concrete”.

C. Touchup Paint:

1. For Equipment- Equipment manufacturer’s paint selected to match installed equipment finish and color.

2. Galvanized Surfaces- Zinc-rich paint as recommended by item manufacturer.

PART 3 - EXECUTION

A. Electrical equipment Installation:

1. Headroom Maintenance- If mounting heights or other location criteria are indicated, arrange and install components and equipment to provide maximum possible headroom.

2. Material and Components- Install level, plumb, and parallel and perpendicular to other building systems and components, unless otherwise indicated.

3. Equipment- Install to facilitate service, maintenance, and repair or replacement of components. Connect for ease of disconnecting, with minimum interference with other installations.

4. Right of Way- Give to raceways and piping systems installed at a required slope.

B. Electrical Supporting Device Application:

1. Damp Locations and Outdoors- Hot-dip galvanized materials or nonmetallic, U-channel system components.

2. Dry Locations- Steel materials.

3. Support Clamps for PVC Raceways- Click-type clamp system.

4. Selection of Supports- Comply with manufacturer’s written instructions.

5. Strength of Supports- Adequate to carry present loads, times a safety factor of at least four.

C. Support Installation:

1. Install support device to securely and permanently fasten and support electrical components.

2. Install individual and multiple raceway hangers and riser clamps to support raceways. Provide U-bolts, clamps, attachments, and other hardware necessary for hanger assemblies and for securing hanger rods and conduits.

3. Support parallel runs of horizontal raceways together on trapeze- or bracket-type hangers.

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4. Install 1/4” diameter or larger threaded steel hanger rods, unless otherwise indicated.

5. Arrange supports in vertical runs so the weight of raceways and enclosed conductors is carried entirely by raceway supports, with no weight load on raceway terminals.

6. Simultaneously install vertical conductor supports with conductors.

7. Separately support cast boxes that are threaded to raceways and used for fixture support. Support sheet-metal boxes directly from the building structure.

8. Install metal channel racks for mounting cabinets, panelboards, disconnect switches, control enclosures, pull and junction boxes, and other devices unless components are mounted directly to structure elements of adequate strength.

9. Install and use sleeves for cable and raceway penetrations in concrete slabs and walls unless core-drilled holes are used. Install sleeves for cable and raceway penetrations of masonry and fire-rated gypsum walls and of all other fire-rated floor, slab-on-deck, and wall assemblies. Install sleeves during erection of concrete forms and installation of masonry walls.

D. Cutting and Patching:

1. Cut, channel, chase, and drill floors, walls, partitions, ceilings, and other building elements required to permit electrical installations. Perform cutting by skilled mechanic of trades involved.

2. Repair and refinish disturbed finish materials and other surfaces to material adjacent undisturbed surfaces. Install new fireproofing where existing firestopping has been disturbed. Repair and refinish materials and other surfaces by skilled mechanics of trades involved.

E. Firestopping:

1. Apply firestopping to cable and raceway penetrations of fire-rated floor and wall assemblies to achieve required fire-resistance rating of the assembly.

F. Equipment Pad:

1. Construct concrete pad of dimensions indicated, but not less than 4 inches oversized in each direction than unit being supported. Follow support equipment manufacturer’s anchorage recommendations and setting template for anchor-bolt and tie locations, unless otherwise indicated. Use 3000-psi, 28 day compressive strength concrete and reinforcement as specified in Division

3, Section “Cast-in-Place Concrete”.

G. Refinishing and Touchup Paint:

1. Refinish and touch up paint:

a. Clean damaged and disturbed areas and apply primer, intermediate, and finish coats to suit the degree of damage at each location.

b. Follow paint manufacturer’s written instructions for surface preparation and for timing and application of successive coats.

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

H. Cleaning and Protection:

1. Inspect exposed finish upon completion of installation, including receptacles, fittings, and devices and repair as necessary. Remove burrs, dirt, paint spots, and construction debris.

2. Protect equipment and installations and maintain conditions to ensure that coating, finishes, and cabinets are without damage or deterioration at time of

Substantial Completion.

End of Section- 26050

8 Division 26 - Electrical

SECTION 26060- GROUNDING AND BONDING

I. Summary:

1. This Section includes grounding of electrical systems and equipment. Grounding requirements specified in this Section may be supplemented by special requirements of systems described in other Sections.

J. Quality Assurance:

1. Testing Agency Qualifications: Testing agency as defined by OSHA in 29 CFR

1910.7 or a member company of the InterNational Electrical Testing Association and that is acceptable to authorities having jurisdiction.

a. Testing Agency’s Field Supervisor: Person currently certified by the

InterNational Electrical Testing Association to supervise on-site testing.

2. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

a. Comply with UL 467.

A. Grounding Conductors:

1. For insulated conductors, comply with Division 16, Section “Conductors and

Cables”.

2. Material: Copper

3. Equipment Grounding Conductors: The raceway system will not be relied on for ground continuity. A green grounding conductor, properly sized per NEC, will be run in ALL raceways.

4. Grounding electrode Conductors: Stranded cable.

5. Underground Conductors: Bare, tinned, stranded, unless otherwise indicated.

6. Bare Copper Conductors: As follows:

a. Solid Cable- 28 kcmil, 14 strands of No. 17 AWG copper conductor, 1/4 inch in diameter.

b. Bonding Conductor- No. 4 or No. 6 AWG, stranded copper conductor.

c. Bonding Jumper- Bare copper tape, braided bare copper conductors, terminated with copper ferrules; 1 5/8 inches wide and 1/16 inch thick.

B. Connector Products:

1. Comply with IEEE 837 and UL 467; listed for use for specific types, sizes, and combinations of conductors and connected items.

2. Bolted Connectors: Exothermic-welded type, in kit form, and selected per manufacturer’s written instructions.

3. Welded Connectors: exothermic-welded type, in kit form, and selected per manufacturer’s written instructions.

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Section 26060- Grounding and Bonding Cont.

C. Grounding Electrodes:

1. Ground Rods: Copper-clad steel.

2. Size: 3/4 inch diameter by 120 inches long.

PART 3 – EXECUTION

A. Application:

1. Use only copper conductors for both insulated and bare grounding conductors in direct contact with earth, concrete, masonry, crushed stone, and similar materials.

2. In raceways, use insulated equipment grounding conductors.

3. Exothermic-Welded Connections: Use for connections to structural steel and for underground connections, except those at test wells.

4. Equipment Grounding Conductor Terminations: Use bolted pressure clamps.

5. Underground Grounding Conductors: Use copper conductor, No. 2/0 AWG minimum. Bury at least 24 inches below grade or bury 12 inches above duct bank when installed as part of the duct bank.

B. Equipment Grounding Conductors:

1. Comply with NFPA 70, Article 250, for types, sizes, and quantities of equipment grounding conductors, unless specific types, larger sizes, or more conductors than required by NFPA 70 are indicated.

2. Install equipment grounding conductors in all feeders and circuits.

3. Install insulated grounding conductors with circuit conductors for the following items, in addition to those required by NEC.

a. Feeders and branch circuits.

b. Lighting circuits.

c. Receptacle circuits

d. Single-phase motor and appliances branch circuits.

e. Flexible raceway runs.

3. Nonmetallic Raceways: Nonmetallic raceways are prohibited.

C. Installation:

1. Ground Rods: All connections will be accessible for inspection.

a. Drive ground rods until tops are 2 inches above finished floor or final grade, unless otherwise indicated.

b. Interconnect ground rods with grounding electrode conductors. Use exothermic welds, except at test wells and as otherwise indicated. Make connections without exposing steel or damaging copper coating.

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

10 Division 26 - Electrical

3. Bonding Straps and Jumpers: Install so vibration of equipment mounted on vibration isolation hangers and supports is not transmitted to rigidly mounted equipment. Use exothermic-welded connections for outdoor locations, unless a disconnect-type connection is required; then use a bolted clamp. Bond straps directly to the basic structure taking care not to not to penetrate any adjacent parts. Install straps only in locations accessible for maintenance.

4. Metal Water Service Pipe: Provide 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 by grounding clamp connectors. Where a dielectric main water fitting is installed, connect grounding conductor to street side of fitting. Bond metal grounding conductor conduit or sleeve to conductor at each end.

5. Water Meter Piping: Use braided-type bonding jumpers to electrically bypass water meters. Connect to pipe with grounding clamp connectors.

D. Connections:

1. General: Make connections so galvanic action or electrolysis possibility is minimized. Select connectors, connection hardware, conductors, and connection methods so metal in direct contact will galvanically compatible.

a. Use electroplated or hot-tin-coated materials to ensure high conductivity and to make contact points closer to order of galvanic series.

b. Make connections with clean, bare metal at points of contact.

c. Make aluminum-to-steel connections with stainless-steel separators and mechanical clamps.

d. Make aluminum-to-galvanized steel connections with tin-plated copper jumpers and mechanical clamps.

e. Coat and seal connections of moisture to contact surfaces.

2. Exothermic-Welded Connections: Comply with manufacturer’s written instructions. Welds that are puffed-up or that show convex surfaces indicating improper cleaning are not acceptable.

3. Equipment Grounding Conductor Terminations: For No. 8 AWG and larger, use pressure-type grounding lugs. No. 10 AWG and smaller grounding conductors may be terminated with winged pressure-type connectors.

4. Noncontact Metal Raceway Terminations: If metallic, raceways terminate at metal housings without mechanical and electrical connection to housing, terminate each conduit with a grounding bushing. Connect grounding bushings with bare grounding conductor to grounding bus or terminal in housing. Bond electrical noncontinuous conduits at entrances and exits with grounding bushings and bare grounding conductors, unless otherwise indicated.

5. Tighten screws and bolts for grounding to bonding 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.

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6. Compression-Type Connections: Use hydraulic compression tools to provide correct circumferential pressure for compression connectors. Use tools and dies recommended by connector manufacturer. Provide embossing die code or other standard method to make a visible indication that a connection has been adequately compressed on grounding conductor.

7. Moisture Protection: If insulated grounding conductors are connected to ground rods or grounding buses, insulate entire area of connection and seal against moisture penetration of insulation and cable.

E. Field Quality Control:

1. Testing: Engage qualified personnel to perform the following field quality-control testing:

a. Upon completion of installation of the electrical grounding and bonding systems, the ground resistance will be tested with a ground resistance tester.

Where tests show resistance-to-ground is over 25 ohms, appropriate action should be taken to reduce the resistance to 25 ohms or less, by driving additional ground rods. The compliance should be demonstrated by retesting.

b. Test the completed grounding system where a maximum ground-resistance level is specified at service disconnect enclosure grounding terminal. Measure ground resistance not less than two full days after the last trace of precipitation, and without the soil being moisturized by any means other than natural drainage or seepage and without chemical treatment or other artificial means of reducing natural ground resistance. Perform tests, by the “fall-of-potential” method according to IEEE 81, IEEE 141, and IEEE 142.

c. Provide drawings locating each ground rod and ground rod assembly and other grounding electrodes, identify each by letter in alphabetical order, and key to record tests and observations. Include the number of rods driven and their depth at each location and include observations of weather and other phenomena that may affect the results. Describe measures taken to improve test results. NFPA 70 has minimum value of 25 ohms. See “Evaluations for discussion on appropriate grounding resistance values”. Values listed are typical, adjust to suit Project conditions.

F. Grading and Planting:

1. Restore surface features, including vegetation, at areas disturbed by Work of this

Section. Reestablish original grades, unless otherwise indicated. If sod has been removed, replace it as soon as possible after backfilling is completed. Restore areas disturbed by trenching, storing of dirt, cable laying, and other activities to their original condition. Include application of topsoil, fertilizer, lime, seed sod, sprig, and mulch. Restore disturbed paving as required.

End of Section- 26060

12 Division 26 - Electrical

SECTION 26075- ELECTRICAL IDENTIFICATION

K. Summary:

1. This Section includes electrical identification materials and devices required to comply with ANSI, NFPA, OSHA standards.

L. Quality Assurance:

a. Comply with ANSI C2.

b. Comply with NFPA 70.

c. Comply with ANSI A13.1 and NFPA 70 for color-coding.

A. Raceway and Cable Labels:

d. Adhesive Labels- Pre-printed, flexible, self-adhesive vinyl with legend overlaminated with a clear, weather- and chemical-resistant coating.

e. Pre-tensioned, Wraparound Plastic Sleeves- Flexible, pre-printed, color-coded, acrylic band sized to suit the diameter of the line it identifies and arranged to stay in place by pre-tensioned gripping action when placed into position.

f. Colored Adhesive Tape- Self-adhesive vinyl tape not less than 3 mils thick by

1 to 2 inches wide.

g. Underground-Line Warning Tape- Permanent, bright-colored, continuous-printed, vinyl tape.

1. Not less than 6 inches wide by 4 mils thick.

2. Compounded for direct-burial service.

3. Embedded continuous metallic strip or core.

4. Printed legend indicating type of underground line.

B. Nameplates and Signs:

1. Safety Signs: Comply with 29 CFR, Chapter XVII, Part 1910.145.

2. Engraved Plastic Nameplates and Signs: Engraving stock, melamine plastic laminate, minimum 1/16 inch thick for signs up to 20 sq. in. and 1/8 inch thick for larger sizes.

a. Engraved legend with black letters on white face.

b. Punched or drilled for mechanical fasteners.

A. Installation:

1. Identification Materials and Devices: Install at all locations for most convenient viewing without interference with operation and maintenance of equipment.

Section 26075- Electrical Identification Cont.

13 Division 26 - Electrical

2. Lettering, Colors, and Graphics: Coordinate names, abbreviations, colors, and other designations with corresponding designations in the Contract Documents or with those required by Codes and Standards. Use consistent designations throughout Project.

3. Sequence of Work: Apply identification applied to surfaces that require field finish after completing finish Work.

4. Self-Adhesive Identification Products: Clean surfaces before applying.

5. Caution Labels for Indoor Boxes and enclosures for Power and Lighting: Install pressure-sensitive, self-adhesive labels identifying system voltage with black letters on orange background. Install on exterior of door or cover.

6. Circuit Identification Labels on Boxes: Install labels externally.

a. Exposed Boxes: Pressure-sensitive, self-adhesive plastic label on cover.

b. Labeling Legend: Permanent, waterproof listing of panel and circuit number or equivalent.

7. Paths of Underground electrical Lines: During trench backfilling, for exterior underground power, install continuous underground plastic line marker located directly above line at 6 to 8 inches below finished grade. Where width of multiple lines installed in a common trench or concrete envelope does not exceed 16 inches overall width, use a single line marker.

8. Secondary Service, Feeder, and Branch-Circuit Conductors: Color-code throughout the secondary electrical system.

a. Color-code 208/120-V system as follows:

1. Phase A: Black

2. Phase B: Red

3. Phase C: Blue

4. Neutral: white

5. Ground: Green

b. Color-code 480/277-V system as follows:

1. Phase A: Brown

2. Phase B: Orange

3. Phase C: Yellow

4. Neutral: Gray

5. Ground: Green

c. Factory apply color the entire length of conductors, except the following field-applied, color-coding methods may be used instead of factory-coded wire for sizes larger than No. 10 AWG.

1. Colored, pressure-sensitive plastic tape in half-lapped turns for a distance of 6 inches from terminal points and in boxes where splices are made.

Apply last two turns of tape with no tension to prevent possible unwinding. Use 1 inch wide tape in colors specified. Adjust tape bands to avoid obscuring cable identification marking.

d. Power-Circuit Identification: Metal tags or aluminum, wraparound marker bands for power circuits.

Section 26075- Electrical Identification Cont.

14 Division 26 - Electrical

1. Legend: 1/4 inch steel letter and number stamping or embossing with legend corresponding to indicated circuit designations.

2. Tag Fasteners: Nylon cable ties.

3. Band Fasteners: Integral ears.

e. Equipment Identification Labels: Engraved plastic laminate. Install on each unit of equipment, including central or master unit of each system. This includes power, lighting, communications, signal, and alarm systems, unless otherwise indicated, provide a single line of text with 1/2 inch high lettering on 1 1/2 inch high label; where two lines of text are required, use labels 2 inches high. Use white lettering on blue field. Apply labels for each unit of the following categories of equipment, using mechanical fasteners:

1. Panelboards, electrical cabinets, and enclosures.

2. Access doors and panels for concealed electrical items.

3. Disconnect switches.

4. Contactors.

5. Transformers.

End of Section- 26075

15 Division 26 - Electrical

SECTION 26120- CONDUCTORS AND CABLES

M. Summary:

1. Listing and Labeling: Provide UL listed wires and cables as specified in this

Section.

N. Quality Assurance:

1. All Codes and Standards referenced to be the latest published edition, unless otherwise noted.

2. Any conflicts between design documents and various Codes and Standards are to be brought to attention of the ESD Project Engineer prior to bid for resolution.

3. Codes:

a. National Electric Code (NEC)

b. Uniform Facilities Standard (UFC)

O. References:

1. Association of Edison Illuminating Companies (AEIC).

2. Institute of Electrical and Electronic Engineers (IEEE).

3. American National Standard Institute (ANSI).

4. American Society for Testing and Materials (ASTM).

5. Electrical Testing Laboratories (ETL).

6. Instrument Society of America (ISA).

7. National Electrical Testing Association (NETA).

8. National Electrical Contractors Association (NECA).

9. National Fire Protection Association (NFPA).

10. Reflector Luminaire Manufacturers (RLM).

11. Underwriters Laboratories, Inc. (UL).

12. National Electrical Manufacturers Association (NEMA).

A. Building wiring and cables: UL-listed building wires and cables with conductor material, insulation type, cable construction, and rating as specified.

1. Rubber Insulation Material: Comply with NEMA WC 3.

2. Thermoplastic Insulation Material: Comply with NEMA WC 5.

3. Cross-Linked Polyethylene Insulation Material: Comply with NEMA WC 7.

4. Ethylene Propylene Rubber Insulation Material: Comply with NEMA WC 8.

5. Conductor Material: Copper

6. Stranding: Solid conductor for No. 10 AWG and smaller; stranded conductor for larger sizes use No. 10 AWG.

Section 26120- Conductors and Cables Cont.

16 Division 26 - Electrical

b. Connectors and Splices: UL-listed, factory-fabricated wiring connectors of size, ampacity rating, material, type, and class for application and service indicated.

A. Use the following wires and insulating materials for the application listed below:

1. Service entrance: Type RHW or THWN, in conduit or raceway.

2. Feeders: Type THHN/THWN, in conduit or raceway.

3. Branch Circuits: Type THHN/THWN, in conduit or raceway.

4. Branch Circuits (Concealed office areas): Type MC or THHN/THWN.

5. Fire Alarm Circuits: Type THHN/THWN, in conduit or raceway.

6. Class 1 Control Circuits: Type THHN/THWN, in conduits or raceway.

7. Class 2 Control Circuits: Type THHN/THWN, in conduits or raceway.

B. Install wires and cables according to NECA, “Standard of Installation”.

C. Pull Conductors: Use manufacturer-approved pulling compound or lubricant where necessary. Do not exceed manufacturer’s recommended maximum pulling tensions and sidewall pressure. Use pulling means that will not damage cables or conduit/raceway.

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

E. Support cables according to Division 26, Section “Basic electrical Materials and

Methods”.

F. Identify wires and cables according to Division 26, Section “Electrical

Identification”.

G. Conductor Splices: Keep to minimum. Splices must be in an accessible junction box.

H. Use splice and tap connectors compatible with conductor material.

I. Wiring at Outlets: Install conductor at each outlet, with at least 12 inches of slack.

J. Connect outlets and components to wiring and to ground.

End of Section- 26120

17 Division 26 - Electrical

SECTION 26121- CONTROL/SIGNAL TRANSMISSION MEDIA

1. This Section includes the following types of control and signal transmission media:

a. Twisted-pair cable.

b. Power Amplifier

c. Microphone

d. Microphone Cable

e. Volume Control

B. Related Sections:

1. Division 26000, Section “General Conditions”.

2. Division 26, Section “Basic Electrical Material and Methods”.

3. Division 26, Section “Conductors and Cables”.

C. Definitions:

1. PTFE: Polytetrafluoroethylene.

D. Submittals:

1. Submittals: Submit in accordance with Division 1 requirements.

2. Product Data: Submit product data for each type of media specified.

E. Quality Assurance:

in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

2. All Codes and Standards referenced to be the latest published edition, unless otherwise noted.

3. Any conflicts between design documents and various Codes and Standards are to be brought to attention of the ESD Project Engineer prior to bid for resolution.

4. Codes:

a. National Electric Code (NEC)

b. Uniform Facilities Standard (UFC)

5. Testing Agency Qualifications: An independent testing agency will meet OSHA criteria for accreditation of testing laboratories, Title 29, Part 1907; or will be a full-member company of the InterNational Electrical Testing Association.

6. Source Limitations: Obtain all cable of type through one source from a single manufacturer.

7. Listing and Labeling: Provide products specified in this Section that are listed and labeled.

a. The Terms “Listed” and “Labeled”: As defined in NFPA 70, Article 100.

Section 26121- Control/Signal Transmission Media Cont.

18 Division 26 - Electrical

b. Listing and Labeling Agency Qualifications: A “Nationally Recognized

Testing Laboratory” as described in OSHA Regulation 1910.7.

F. References:

13. Association of Edison Illuminating Companies (AEIC).

14. Institute of Electrical and Electronic Engineers (IEEE).

15. American National Standard Institute (ANSI).

16. American Society for Testing and Materials (ASTM).

17. Electrical Testing Laboratories (ETL).

18. Instrument Society of America (ISA).

19. National Electrical Testing Association (NETA).

20. National Electrical Contractors Association (NECA).

21. National Fire Protection Association (NFPA).

22. Reflector Luminaire Manufacturers (RLM).

23. Underwriters Laboratories, Inc. (UL).

24. National Electrical Manufacturers Association (NEMA).

G. Project Conditions:

1. Existing Utilities: Do not interrupt utilities servicing facilities occupied by End

User or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

a. Notify ESD Inspections at least 2 days in advance of proposed utility interruptions.

b. Do not proceed with interruptions without ESD Inspections written permission.

1. Coordinate with and obtain review of cable characteristics and certification for use with the connected system equipment by the connected equipment manufacturer.

A. Electrical Cable:

1. Twisted Pair: Single twisted pair of No. 22 AWG tinned-copper conductors;

color-coded, low-loss polyethylene insulation; unshielded.

2. 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:

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1. Power Amplifier:

1. Manufacturer: Bogen Power Amplifier

2. Model: BPA60

2. Microphone:

1. Manufacturer: Bogen Public Address Microphone

2. Model: HDO100

3. Microphone Cable:

1. Manufacturer: Bogen Microphone Cable

2. Model: XLR25

4. Volume Control:

1. Manufacturer: Bogen Signal Level Control

2. Model: SLC

A. Examination:

1. Examination: Examine raceways and other elements to receive cables for conductors with requirements for installation tolerances and other conditions affecting performance of transmission media. Do not proceed with installation until unsatisfactory conditions have been corrected.

B. Installation:

1. Install cable as indicated, according to manufacturer’s written instructions.

2. Install transmission media without damaging conductors, shield, or jacket.

5. Do not bend cable, in handling or installation, to smaller radii than minimum recommended by manufacturer.

3. Pull cables without exceeding cable manufacturer’s recommended pulling tensions.

a. Pull cables simultaneously if more than one is being installed in same raceway.

b. Use pulling compound or lubricant where necessary; compound used must not deteriorate conductor or insulation.

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

4. Install exposed cables parallel and perpendicular to surface or exposed structural members, and follow surface contours where possible.

5. Support cables according to Division 26, Section “Basic Electrical Materials and

Methods”.

6. Make no splices except at indicated splice points.

7. Bond shields and drain conductors to ground at only one point in each circuit.

8. Connect components to wiring system and to ground as indicated and instructed by manufacturer.

20 Division 26 - Electrical

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

C. Field Quality Control:

1. Copper Cable Testing Procedures: Inspect for physical damage and test cable for continuity and shorts. Test cable segments for faulty connectors, splices, terminations, and the integrity of the cable and its component parts.

2. Replace malfunctioning cables at Project site, where possible, and retest to demonstrate compliance.

End of Section- 26121

21 Division 26 - Electrical

SECTION 26130- RACEWAYS AND BOXES

P. Summary:

1. This Section includes raceways, fittings, boxes, enclosures, and cabinets for electrical wiring.

Q. Quality Assurance:

in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

2. All Codes and Standards referenced to be the latest published edition, unless otherwise noted.

3. Any conflicts between design documents and various Codes and Standards are to be brought to attention of the ESD Project Engineer prior to bid for resolution.

4. Codes:

a. National Electric Code (NEC)

b. Uniform Facilities Standard (UFC)

R. Definitions:

1. EMT: electrical metallic tubing.

2. FMC: Flexible metal conduit.

3. LFMC: Liquidtight flexible metal conduit.

4. LFNC: Liquidtight flexible nonmetallic conduit.

5. RSC: Rigid steel conduit.

S. Coordination:

1. Coordinate layout and installation of raceways, boxes, enclosures, cabinets, and suspension system with other construction that penetrates ceilings or is supported by them, including light fixtures, HVAC equipment and ductwork, fire-suppression system, and partition assemblies.

A. Factory Finishes:

1. For raceway, enclosures, or cabinet components, provide manufacture’s standard prime-coat finish.

A. Raceway Application:

1. Outdoors:

a. Exposed: rigid Steel

b. Concealed: rigid steel

Section 26130- Raceways and Boxes Cont.

22 Division 26 - Electrical

c. Underground, Single run: RNC

d. Underground, Grouped: RNC

e. Under Asphalt of Roadway, Single Run: rigid galvanized steel.

f. Connection to vibrating equipment (Including Transformers and Hydraulic, Pneumatic, electrical Solenoid, or Motor-Driven Equipment): LFMC.

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

2. Indoors:

a. Exposed (Office Areas when specified): EMT with compression fittings.

b. Exposed and Concealed (Bay Areas): Rigid steel to a minimum of 10 feet above finished floor. EMT with compression fittings may be used above 10 feet.

c. Concealed (Typical for Office Areas): EMT with compression fittings.

d. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic, Electrical Solenoid, or Motor-Driven Equipment): FMC, except use LFMC in damp or wet locations.

e. Damp or Wet Locations: Rigid steel conduit.

f. Boxes and Enclosures: NEMA 250, Type 1, except as follows:

1. Damp or Wet Locations: NEMA 250, Type 4, stainless steel or nonmetallic.

3. Minimum raceway size: 1/2 inch trade size (DN 16).

4. Raceway Fittings: Compatible with raceway and suitable for use and location.

5. Do not install aluminum conduits embedded in or in contact with concrete.

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

2. Complete raceway installation before starting conductor installation.

3. Support raceways as specified in Division 26, “Basic Electrical Materials and

Methods”.

4. Install temporary closers to prevent foreign matter from entering raceway.

5. Protect stub-ups from damage where conduits rise through floor slabs. Arrange so curved portions of bends are not visible above finished slab.

6. Make bends and offsets so that OD is not reduces. Keep legs of bends in the same plane and keep straight legs of offsets parallel, unless otherwise indicated.

7. Conceal conduit and EMT within finished walls, ceilings, and floors, unless otherwise indicated.

a. Install concealed raceway with a minimum of bends in the shortest practical distance, considering type of building construction and obstructions, unless otherwise indicated.

8. Raceways Embedded in Slabs: Install in middle 1/3 of slab thickness where practical and leave at least 2 inches of concrete cover.

a. Secure raceways to reinforcing rods to prevent sagging or shifting during concrete placement.

b. Space raceways laterally to prevent voids in concrete.

23 Division 26 - Electrical

c. Run conduit larger than 1 inch trade size (DN 27) parallel or at right angles to main reinforcement. Where at right angles to reinforcement, place conduit close to slab support.

d. Change from metallic tubing to rigid steel conduit before rising above the floor.

9. Install exposed raceways parallel to or at right angles to nearby surfaces or structural members and follow surface contours as much as possible.

a. Run parallel or banked raceways together in common supports.

b. Make bends in a parallel manner in parallel or banked runs. Use factory elbows only where elbows can be installed parallel; otherwise, provide field bends for parallel raceways installation.

10. Join raceway fittings designed and approved for the particular use and make joints tight.

a. Use insulating bushings to protect conduits.

11. Tighten set screws of threadless fittings with suitable tools.

12. Terminations:

a. Where raceways are terminated with locknuts and bushings, align raceways to enter squarely and install locknuts with dished part against box. Use locknuts, one inside and one outside box.

b. Where raceways are terminated with threaded hubs, screw raceways of fittings tightly into hub so the ends bear against wire protection shoulder.

Where chase nipples are used, align raceways so coupling is square to box; tighten nipple so no threads are exposed.

13. 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 slack at each end of pull wire.

14. Telephone and signal system Raceways, 2 inch Trade Size (DN53) and Smaller:

in addition to the requirements stated above, install raceways in maximum lengths of 150 ft. and with a maximum of two 90 degree bends, or equivalent.

Separate lengths with pull or junction boxes where necessary to comply with these requirements.

15. Stub-up Connections: Extend conduits through concrete floor slab for connection with freestanding equipment. Install with an adjustable top and coupling, threaded inside, for plugs to be set flush with finish floor. Extend conductors to equipment with rigid steel conduit; FMC may be used from 6 inches above finished floor. Install screwdriver operated, threaded plugs flush with floor for future equipment connections.

16. Flexible Connections: Use maximum of 72 inches of flexible conduit for recessed and semi-recessed lighting fixtures; for equipment subject to vibrate, noise transmission, or movement; and all motors. Use LFMC in damp or wet locations. Install separate ground conductor across flexible connections.

17. Surface Raceways: Install a separate green, ground conductor in raceways from junction box supplying raceways to receptacle or fixture ground terminals.

C. Protection:

24 Division 26 - Electrical

1. Provide final protection and maintain conditions that ensure coatings, finished, and cabinets are without damage or deterioration at time of Substantial

Completion.

a. Repair damage to galvanize finished with zinc-rich paint recommended by manufacturer.

b. Repair damage to PVC or paint finished with matching touchup coat recommended by manufacturer.

D. Cleaning:

1. After completing installation of exposed, factory-finished raceways and boxes, inspect exposed finished and repair damaged finishes.

End of Section- 26130

25 Division 26 - Electrical

SECTION 26140- WIRING DEVICES

A. General:

in NFPA 70, Article 100, or by a testing agency acceptable to authorities having jurisdiction.

2. Comply with NEMA WD 1.

3. Comply with NFPA 70.

B. Submittals:

2. Product Data: Submit manufacturer’s standard product data submittal literature for item specified.

A. Products, General:

1. Straight-Blade and Locking Receptacles: Heavy-Duty grade.

2. GFCI Receptacles: Feed-through type, with integral NEMA WD 6, Configuration 5-20R duplex receptacle arranged to protect connected downstream receptacles on same circuit. Design units for installation in a 2-3/4 inch deep outlet box without an adaptor.

3. Pendant/Chord Connector Devices: Matching, locking type, plug and receptacle body connector, NEMA WD 6, Configuration L5-20P and L5-20R, Heavy-Duty grade.

a. Body: Nylon with screw-open cable-gripping jaws and provision for attaching external cable grip.

b. External Cable Grip: Woven wire-mesh type made of high-strength galvanized-steel wire strand, matched to cable diameter, and with attachment provision designed for corresponding connector.

4. Cord and Plug Sets: Match voltage and current ratings and number of conductors to requirements of equipment being connected.

a. Cord: Rubber-insulated, stranded-copper conductors, with type SOW-A jacket.

b. Green-insulated grounded conductor, and equipment-rating ampacity plus a minimum of 30 percent.

c. Plug: Nylon body integral cable-clamping jaws. Match cord and receptacle type for connection.

5. Snap Switches: Heavy-Duty, quiet type, white.

6. Wall Plates: Standard size, non-corrosive 302/304 stainless steel, single and combination types to be stainless steel, brushed finish.

7. Receptacles: Duplex convenience with ground, white.

8. GFCI Receptacle Covers: Expandable Cover, Model ML500Z as manufactured by Hubbell/Taymac or an approved equal, white.

26 Division 26 - Electrical

Section 26140- Wiring Devices Cont.

B. Control Devices:

1. Manufacturers: 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. Ballast Controller:

1. Manufacturer: Synergy Lighting Controls

2. Model: ISD BC

b. Motion Sensors: Wall Mount:, Break Rooms, Offices, Small Conference

Rooms (8 personnel or less):

1. Manufacturer: Sensorswitch

a. Model: WSD PDT

c. Motion Sensors: Ceiling Mount: Restrooms, Corridors, Large Conference

Rooms (9 or more personnel):

1. Manufacturer: Sensorswitch

2. Model: CM PDT 10

d. Electronic Access Control:

1. Manufacturer: Ingersoll-Rand/ Schlage

2. Cylindrical: CM5100

3. Mortis: CM5500

4. Unit Locks: CM5700

A. Installation, General:

1. Install devices and assemblies plumb and secure.

2. Install all typical convenience receptacles at 18 inches above finished floor to center of device, spaced at 12’-0” on center and on any usable wall 48 inches wide and wider, unless noted otherwise.

3. Install all switches at 50 inches above finished floor to center of device, unless otherwise noted.

4. Install wall plates when painting is complete.

5. Arrangement of Devices:

a. Unless otherwise indicated, mount flush, with long dimension vertical, and grounding terminal of receptacles on top. Group adjacent switches under single, multigang wall plates.

6. Protect devices and assemblies during paint touchup.

7. Identify devices according to Division 26, Section “Basic Electronic Material and Methods”.

8. Connect wiring device grounding terminal to branch-circuit equipment grounding conductor.

27 Division 26 - Electrical

Section 26140- Wiring Devices Cont.

9. 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 and UL 486B.

10. Test wiring devices for proper polarity and ground continuity. Operate each device at least six times for testing prior to Substantial Completion.

11. Replace damaged or defective components.

End of Section- 26140

28 Division 26 - Electrical

SECTION 26410- ENCLOSED SWITCHES

C. Summary:

4. This Section includes individually mounted enclosed switches and circuit breakers used for the following:

a. Feeder and Branch-Circuit protection.

b. Motor and Equipment disconnecting means.

D. Related Sections:

9. Division 26, Section Wiring Devices”.

10. Division 26, Section “Fuses”.

E. Definitions:

2. GFCI: Ground-fault circuit interrupter.

3. RMS: Root mean square.

4. SPDT: Single pole, double throw.

F. References:

1. ANSI: American National Standard Institute.

2. NFPA: National Fire Protection Association.

3. UL: Underwriters Laboratories.

4. NEMA: Nation Electrical Manufacturer’s Association.

5. NETA: National Electrical Testing Association.

G. Submittals:

2. Product Data: For each type of switch, circuit breaker, accessory, and component indicated. Include dimensions and manufacturer’s technical data on features, performance, electrical characteristics, ratings, and finishes.

3. Shop Drawings: For each switch>

a. Include the following:

1. Enclosure types and details.

2. Current and voltage.

3. Short-circuit rating.

4. Features, characteristics, ratings, and factory settings of individual overcurrent protective devices and auxiliary components.

H. Quality Assurance:

6. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction and marked for intended use.

7. Comply with NEMA AB 1 and NEMA KS 1.

8. Comply with NFPA 70.

29 Division 26 - Electrical

Section 26410- Enclosed Switches Cont.

G. Project Conditions:

1. Environmental Limitations: Rate equipment for continuous operation under the following conditions, unless otherwise indicated:

b. Ambient Temperature: Not less than minimum 22 deg. F. and not exceeding

104 deg. F.

1. Coordinate layout and installation of switches, circuits breakers, and components with other construction, including conduit, piping, equipment, and adjacent surfaces. Maintain required workspace clearances and required clearances for equipment, equipment access doors and panels.

A. Enclosed Switches:

1. Enclosed, Nonfusible Switch: NEMA KS 1, Type HD.

2. Enclosed, Fusible Switch, 800 A and Smaller: NEMA KS 1, Type HD, with clips to accommodate specific fuses, lockable handle with two padlocks, and interlocked with cover in closed position.

B. Enclosures:

1. NEMA AB 1 and NEMA KS 1 to meet environmental conditions of the installed location.

a. Outdoor Locations: NEMA 250, Type 3R.

b. Other Wet or Damp Indoor Locations: NEMA 250, Type 4.

C. Factory Finishes:

1. Manufacturer’s standard prime-coat ready for field painting.

1. Examine elements and surfaces to receive enclosed switches for compliance with installation tolerances and other conditions affecting performance.

a. Proceed with installation only after unsatisfactory conditions have been corrected.

1. Temporary Lifting Provisions: Remove temporary lifting eyes, channels, and brackets and temporary blocking of moving parts from enclosures and components.

30 Division 26 - Electrical

Section 26410- Enclosed Switches Cont.

C. Identification:

1. Identify field-installed conductors, interconnection wiring, and components;

provide warning signs as specified in Division 26, Section “Electrical

Identification”.

2. Enclosed Nameplates: Label each enclosure with engrave metal or laminated-plastic nameplate mounted with corrosion-resistant screws.

D. Connections:

1. Install equipment grounding connections for switches and circuit breakers with ground continuity to main electrical ground bus.

2.