Section J Att 003 - Specifications - Volume 2 of 2.pdf

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040820 ELECTRICAL GENERAL PROVISIONS

SECTION 26 05 01 – ELECTRICAL GENERAL PROVISIONS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 1 Specification Sections, apply to this Section.

B. The provisions of This Section, Common Work Results for Electrical, apply to all sections in

Division 26.

C. All Sections of Division 26, ELECTRICAL, are interrelated. When interpreting any direction, material, and method specified in any section of Division 26, consider it within the entirety of

Work in Division 26.

1.2 SUMMARY

A. This Section includes

1. The intent of Division 26 Specifications and Drawings is to provide a complete and workable facility, with complete systems as required by applicable codes, as indicated, and as specified.

2. Include all work specified in Division 26 and indicated on Drawings, including appurtenances, connections, fasteners, and accessories required to make a complete working system, whether indicated or not indicated.

B. The Division 26 Specifications and the accompanying Drawings are complementary, and what is called for by one shall be as binding as if called for by both.

1. Items shown on the Drawings are not necessarily included in the Specifications and vice versa.

2. In case of conflict, Specifications supersede Drawings.

C. Imperative language used in Division 26 Sections addresses the Contractor, as specified in

Division 1 Section, “Summary”.

1.3 REFERENCES

A. The latest adopted revisions of the publications listed below apply to these Specifications as referenced:

1. International Building Code, (Latest adopted edition).

2. National Electrical Code (Latest adopted edition).

3. National Fire Protection Association (Latest adopted edition).

4. National Electrical Manufacturers Association (NEMA 2016).

5. National Electrical Contractors Association (NECA 2017).

6. American National Standards Institute (ANSI).

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

RFP No. 140P8621R0001 Section J - Attachment No. 003

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8. Underwriters Laboratories (UL).

9. Federal Specifications (Fed. Spec.).

10. Federal Acquisition Regulation (FAR).

11. The publications are referred to in the text by acronym or initials in parentheses above.

1.4 SYSTEM DESCRIPTION

A. Ground Systems:

1. Provide complete ground systems indicated.

2. Include conduit system, transformer housings, switchboard frame, and neutral bus, motors, and miscellaneous grounds required by Contract Documents and by applicable codes.

B. System Identification:

1. Clearly identify all elements of the Project electrical system to indicate the loads served, or the function of each item of equipment, connected under this work.

2. Comply with requirements of Division 26 Section, “Identification,” and with applicable codes.

C. Drawings:

1. The Drawings are diagrammatic: they do not show every offset, bend, tee, or elbow which may be required to install work in the space provided and avoid conflicts with other construction.

a. Prior to installing work, take field dimensions, and note conditions available for, installation.

b. Follow the Drawings as closely as practical to do so, and install additional bends, offsets, and elbows where required by installation conditions.

1) Additional offsets, bends, and other connectors are subject to approval by

Contract Officer.

2) Install additional offsets, bends, and other connectors without additional cost to

Government.

c. The right to make any reasonable changes in outlet location prior to roughing in is reserved to the Contracting Officer.

2. Luminaire Designations:

a. Lower case letters adjacent to devices or luminaires indicate switching arrangement or circuit grouping.

b. Numbers adjacent to devices indicate circuit connection.

3. Circuits and Switching:

a. Do not change branch circuiting and switching indicated; nor combine homeruns, without Contracting Officer’s prior approval.

b. Do not combine or change feeder runs.

4. Circuit Conductors:

a. Cross or hash marks on conduit runs indicate quantity of No. 12 copper branch circuit conductors, unless otherwise noted.

b. Where such marks do not appear, provide quantity of circuit conductors to the outlets shown to perform the control or circuiting indicated.

c. Include ground, travelers and switchlegs required by the circuiting arrangement indicated.

d. Provide a dedicated neutral conductor with each circuit, do not use a shared neutral conductor between phases unless specifically requested or directed.

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1.5 SUBMITTALS

A. Comply with Division 1 Section, “Submittal Procedures”.

B. Shop Drawings and Equipment Data:

1. Combine electrical shop drawings and equipment data in Submittal binders.

2. Include in Submittal binders:

a. A complete index of materials and equipment required by Specifications to be documented by submittals.

b. Manufacturer’s detailed specifications and data sheets to fully describe equipment furnished.

c. FAR Part 25.6 compliance documentation where required by Specifications.

d. All deviations from the Drawings and Specifications, noted on the submittals. Failure to comply will automatically void any implied approval for use of the equipment on this project.

C. Installation Drawings:

1. Submit prior to starting installation.

2. Show all outlets, devices, terminal cabinets, conduits, wiring, and connections required for the complete system described.

D. Record Drawings:

1. Keep record drawings up to date as the work progresses.

2. Show all changes, deviations, addendum items, change orders, corrections, and other variations from the Contract Drawings.

3. Keep record drawings at the jobsite and available for the Contracting Officer’s review.

4. At the completion of the work, incorporate all deviations from the installation drawings to indicate “as-built” conditions.

E. Operation and Maintenance Data:

1. As specified in Division 1 Section, “Closeout Procedures”.

2. Provide a separate manual or chapter for each system as follows:

a. Low voltage distribution system.

b. Fire alarm system.

c. Lighting system.

3. Description of system.

4. Operating Sequence and Procedures:

a. Step-by-step procedure for system start-up, including a pre-start checklist.

1) Refer to controls and indicators by nomenclature consistent with that used on panels and in control diagrams.

b. Detailed instruction in proper sequence, for each mode of operation (i.e., day-night, staging of equipment).

c. Emergency Operation:

1) If some functions of the equipment can be operated while other functions are disabled, give instructions for operations under those conditions.

2) Include here only those alternate methods of operations (from normal) which the operator can follow when there is a partial failure or malfunctioning of components or other unusual condition.

d. Shutdown Procedure:

1) Include instructions for stopping and securing the equipment after operation.

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2) If a particular sequence is required, give step-by-step instructions in that order.

5. Preventive Maintenance:

a. Schedule for preventive maintenance.

1) State the recommended frequency of performance of each preventive maintenance task such as cleaning, inspection, and scheduled overhauls.

b. Cleaning: Provide instructions and schedules for all routine cleaning and inspection with recommended lubricants.

c. Inspection: If periodic inspection of equipment is required for operation, cleaning, or other reasons, indicate the items to be inspected and give the inspection criteria.

d. Provide instructions for lubrication and adjustments required for preventive maintenance routines. Identify test points and given values for each.

6. Manufacturers’ Brochures:

a. Include manufacturers’ descriptive literature covering devices and equipment used in the system, together with illustrations, exploded views, and renewal parts lists.

b. Edit manufacturers’ standard brochures so that the information applying to the actual installed equipment is clearly defined.

7. Results of performance testing, as specified in Part 3 of This Section.

F. Submittals Procedures:

1. Review and recommendations by the Contracting Officer are not to be construed as change authorizations.

2. If discrepancies are discovered between the materials or equipment submitted, and the

Contract Documents, either prior to or after the data is processed, the Contract Documents govern.

1.6 QUALITY ASSURANCE

A. Regulatory Requirements:

1. Provide work and materials conforming to:

a. Local and State codes

b. Federal and State laws and regulations.

c. Other applicable laws and regulations.

2. Obtain and pay for all permits, licenses, and inspection certificates required by authorities having jurisdiction.

3. Pay any other fees required by governing authorities for work of this Division.

B. Install only electrical products listed by a recognized testing laboratory, or approved in writing by the local inspection authority as required by governing codes and ordinances.

1.7 COORDINATION

A. Coordinate Work of This Division with all other trades to ensure proper installation of electrical equipment.

1. Review Drawings of other trades or crafts to avoid conflicts with cabinets, counters, equipment, structural members, and other possible impediments to electrical work.

2. Report potential conflicts to Contracting Officer prior to rough-in.

3. Proceed with rough-in following the Contracting Officer’s directives to resolve conflicts.

4. In general, the Architectural Drawings govern.

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B. Verify the physical dimension of each item of electrical equipment to fit the available space.

Contractor’s responsibility includes:

1. Coordination of the equipment to fit into the available space.

2. Access routes through the construction.

C. Layout Drawings:

1. Equipment arrangement shown on Drawings is diagrammatic to indicate general equipment sizing and spatial relationship. Contractor shall include, as part of distribution equipment submittal, a scaled floor plan which includes all equipment shown with their submitted sizes. Include all feeder conduit routing, both above-ground and underground, including termination points at equipment. Submit for Contract Officer’s review prior to commencing work.

2. Provide additional wiring details at switchboards, motor control centers, and other areas where work is of sufficient complexity to warrant additional detailing for coordination.

3. Submit layout drawings for approval prior to commencing field installation.

D. Where electrical connections are required for equipment provided as Work of other Divisions, coordinate rough-in and wiring requirements for that equipment with its supplier and installer prior to commencing work. Notify the Contract Officer of any discrepancies between the actual rough-in and wiring requirements, and those identified on Drawings for resolution prior to installation.

E. Arrange raceways, wiring, and equipment to permit ready access to switches, motors, and control components.

1. Doors and access panels shall be kept clear.

F. Coordinate underground work with other contractors working on the site.

1. Coordinate particularly with contractors installing storm sewer, sanitary sewer, water, and irrigation lines to avoid conflicts.

2. Common trenches may be used with other trades, providing clearances required by codes and ordinances are maintained.

G. Coordinated Shop Drawings.

1. Shop drawings shall be prepared in two-dimensional format.

2. Shop drawings shall include but are not limited to:

a. Superplot plans of above ground work with a colored overlay of all trades including, but not limited to, HVAC piping, HVAC equipment, plumbing piping and equipment, sprinklers, lighting, lighting controls, cable tray, fire alarm devices, electrical power conduit, and ceiling system to a minimum of 1/2" = 1”-0” scale.

b. Superplot plans of below ground work with a colored overlay of all trades including, but not limited to, structural footings and foundation, HVAC piping, civil piping, plumbing piping, and power conduit to a minimum of 1/2" = 1”-0” scale.

c. Beam penetration drawings indicating beam penetrations meeting the requirements indicated on the floor plans and on the structural drawings to a minimum of 1/4" = 1'-

0" scale.

d. Slab penetration drawings of HVAC, plumbing, sprinklers, lighting and electrical to a minimum of 1/4-inch equals 1”-0” scale.

e. Fabrication drawings of radiant ceiling panels, architectural metal ceiling, including panel penetrations for lighting, sprinkler heads, fire alarm devices, and any other penetrations.

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1.8 CHANGE ORDERS

A. All supplemental cost proposals by the Contractor shall be accompanied with a complete itemized breakdown of labor and materials. At the Contracting Officer’s request, Contractor’s estimating sheets for the supplemental cost proposals shall be made available to the Contracting Officer.

Labor shall be separated and allocated for each item of work.

1.9 WARRANTY

A. Provide a written warranty covering the work of this Division as required by the General

Conditions.

B. Apparatus:

1. Free of defects of material and workmanship and in accord with the Contract Documents.

2. Built and installed to deliver its full rated capacity at the efficiency for which it was designed.

3. Operate at full capacity without objectionable noise or vibration.

C. Include in Contractor’s warranty for Work of Division 26 system damage caused by failures of any system component.

PART 2 - PRODUCTS

2.1 GENERAL

A. Where specified materials or methods conflict with applicable codes, the more stringent requirement applies.

B. Provide apparatus built and installed to deliver its full rated capacity at the efficiency for which it was designed.

C. Ensure that entire electrical system operates at full capacity without objectionable noise or vibration.

D. Materials and Equipment:

1. Use materials and equipment that are:

a. New.

b. Of quality meeting or exceeding specified standards.

c. Free of faults and defects.

d. Conforming to Contract Documents.

e. Of size, make, type, and quality specified.

f. Suitable for the installation indicated.

g. Manufactured in accordance with NEMA, ANSI, U.L. or other applicable standards.

h. Compliant with FAR American Recovery and Reinvestment Act, buy American Act construction materials.

i. Otherwise as specified in Division 1 Section, “Product Requirements”.

2. Equipment not meeting all requirements will not be acceptable, even though specified by name.

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3. Where two or more units of the same class of equipment are furnished, use products of the same manufacturer.

a. Component parts of the entire system need not be products of same manufacturer.

4. Basis of Design:

a. Equipment scheduled or specified by performance or model number shall be considered the Basis of Design.

b. If other equipment is provided in lieu of the Basis of Design equipment, assume responsibility for all changes and costs which may be necessary to accommodate this equipment, including, but not limited to:

1) Different sizes and locations for connections.

2) Different dimensions.

3) Different access requirements.

4) Any other differences.

PART 3 - EXECUTION

3.1 INSTALLATION

A. General:

1. Provide a complete properly operating system for each item of equipment specified.

2. Install materials in a neat and professional manner.

3. Comply with equipment manufacturer’s written instructions, the best industry practices, and the Contract Documents.

4. Comply with latest published NECA Standard of Installation, and provide competent supervision.

B. Clarification:

1. Where there is a conflict among manufacturer’s instruction, best practice, and the

Documents, request clarification from the Contracting Officer prior to rough-in.

2. Contracting Officer’s decision will be final.

3. Work installed without clarification shall be removed and corrected by the Contractor at no cost to the Contracting officer.

C. Existing concrete, block or brick walls are considered not accessible and may require use of

Surface Mounted Raceway (SMR) if existing concealed raceway and device boxes are not available for reuse or do not meet the intent of the design (i.e. proximity to egress path, point of use, etc.). Coordinate route and installation where SMR is required with the Contracting Officer prior to rough-in. The contractor will be responsible for reinstalling SMR routed without such prior approval to the Contracting Officer’s satisfaction.

D. Existing stud walls (wood or metal) with or without blocking with plaster, plasterboard or paneling finish are considered accessible with accessible ceiling, attic, tunnel, or crawl space above, below, or adjacent. Remove, patch, and repair finished surface as required to conceal rough-in for new device locations. If it is determined that a specific instance will not permit concealment of rough-in due to obstructions such as beams, headers, and other structural elements prior approval before rough-in from the Contracting Officer is required.

3.2 INSTALLATION IN RATED CONSTRUCTION

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A. Install intumescent material around ducts, conduits, and other electrical elements penetrating rated construction.

B. Comply with firestop materials manufacturer’s written instructions to prevent spread of smoke or fire through sleeves or block-outs penetrating rated fire barriers.

C. Provide firestop materials specified in Division 7 Section, “Through-Penetration Firestop

Systems,” and as follows:

1. Capable of passing a 3-hour test per ASTM E-814 (UL 1479).

2. Consisting of material capable of expanding nominally eight times when exposed to temperatures of 250-350°F.

3. An alternate method utilizing intumescent materials in caulk or putty complying with

Division 7 Section, “Through-Penetration Firestop Systems” may be used.

3.3 EXCAVATION AND BACKFILL

A. Perform all necessary excavation and backfill for the installation of electrical work in compliance with Division 31.

B. For direct burial cable or non-metallic conduit, a minimum 3-inch cover of sand or clean earth fill shall be placed all around the cable or conduit on a leveled trench bottom. Lay all steel conduit on a smooth level trench bottom, so that contact is made for its entire length. Water shall be removed from trench while electrical conduit is being laid.

C. Place backfill in layers not exceeding 8-inches deep and compact to 95% of maximum density at optimum moisture to preclude settlement.

1. Interior: Bank sand or pea gravel.

2. Exterior: Excavated material with final 8-inches clean soil.

D. Following backfilling, grade all trenches to the level of surrounding soil. All excess soil shall be disposed of at the site as directed.

E. Provide 6-inches wide vinyl tape marked "ELECTRICAL" in backfill, 12-inches below finished grade, above all High and Low line voltage cable or conduit runs.

F. Coordinate patching of all asphalt or concrete surfaces disturbed by this work with General

Contractor.

3.4 NOISE CONTROL

A. Minimize transmission of noise between occupied spaces.

B. Outlet Boxes:

1. Do not install outlet boxes on opposite sides of partitions back to back.

2. Do not use straight through outlet boxes, except where indicated.

C. Conduit:

1. Route conduit along corridors or other “noncritical” space to minimize penetrations through sound rated walls, or through non-sound-rated partitions between occupied spaces.

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2. Grout solid and airtight all penetrations through sound rated partitions.

3. Use flexible connections or attachments between independent wall structures.

a. Do not rigidly connect (i.e., bridge) independent wall structures.

D. Do not install contactors, transformers, starters, and similar noise-producing devices on walls that are common to occupied spaces, unless otherwise indicated.

1. Where such devices are indicated to be mounted on walls common to occupied spaces, use shock mounts, or otherwise isolate them to prevent the transmission of noise to the occupied spaces.

E. Ballasts, contactors, starters, transformers, and like equipment which are found to be noticeably noisier than other similar equipment on the project will be deemed defective and shall be replaced.

3.5 EQUIPMENT CONNECTIONS

A. General:

1. Provide complete electrical connections for all items of equipment requiring such connections, including incidental wiring, materials, devices, and labor necessary for a finished working installation.

2. Verify the location and method for connecting to each item of equipment prior to roughing-in.

3. Check the amperage, maximum overcurrent protection, voltage, phase and similar attributes of each item of equipment before rough-in and connection.

B. Motor Connections:

1. Make motor connections for the proper direction of rotation.

2. Minimum Size Flex for Mechanical Equipment: 3/4-inch; except at small control devices where 3/8-inch flex may be used.

3. Exposed Motor Wiring: Jacketed metallic flex with minimum 6-inches slack loop.

4. Do not test run pump motors until liquid is in the system.

C. Control devices and wiring relating to the HVAC systems are furnished and installed under

Division 23; except for provisions or items indicated in Division 26 Drawings and Specifications.

3.6 EQUIPMENT SUPPORT

A. Minimum Support Capacity:

1. Provide fastening devices and supports for electrical equipment, luminaires, panels, outlets, and cabinets capable of supporting not less than four times the ultimate weight of the object or objects fastened to or suspended from the building structure.

B. Luminaire Supports:

1. Support luminaires from the building structure.

2. Use supports that provide proper alignment and leveling of luminaires.

3. Where permitted at exposed luminaires, install flexible connections neat and straight, without excess slack, and attached to the support device.

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C. Support all junction boxes, pull boxes, or other conduit terminating housings located above the suspended ceiling from the floor above, roof, or penthouse floor structure to prevent sagging or swaying.

D. Conduits:

1. Support suspended conduits 1-inch and larger from the overhead structural system with metal ring or trapeze hangers and threaded steel rod having a safety factor of four.

2. Conduits smaller than 1-inch installed in ceiling cavities, may be supported on the mechanical system supports when available space and support capacity has been coordinated with the subcontractor installing the supports.

3. Anchor conduit installed in poured concrete to the steel reinforcing with No. 14 black iron wire.

E. Powder actuated or similar shot-in fastening devices will not be permitted for any electrical work except by special permission from the Contracting Officer.

3.7 ACCESS DOORS

A. Location and size of access doors is Work of Division 26.

B. Furnishing and installation of access doors is work of Division 8 Section, “Access Doors and

Frames”.

3.8 ALIGNMENT

A. Install panels, cabinets, and equipment level and plumb, parallel with structural building lines.

B. Install distribution equipment and all electrical enclosures fitted neatly, without gaps, openings, or distortion.

C. Properly and neatly close all unused openings with approved devices.

D. Fit surface panels, devices, and outlets with neat, appropriate, trims, plates, or covers without overhanging edges, protruding corners, or raw edges.

3.9 CUTTING AND PATCHING

A. General:

1. Comply with Division 1 Section, “Cutting and Patching”.

2. Restore to original condition new or existing work cut or damaged by installation, testing, and removal of electrical Work.

3. Patch and finish spaces around conduits passing through floors and walls to match the adjacent construction, including painting or other finishes.

4. Clean up and remove all dirt and debris.

B. Make additional required openings by drilling or cutting. Use of jackhammer is prohibited.

C. Fill holes that are cut oversize so that a tight fit is obtained around the objects passing through.

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D. Obtain the Contracting Officer’s permission and direction prior to piercing beams or columns.

E. Where alterations disturb lawns, paving, walks, and other permanent site improvements, repair and refinish surfaces to condition existing prior to commencement of work.

3.10 PROTECTION OF WORK

A. Protect all electrical work and equipment installed under this Division against damage by other trades, weather conditions, or any other causes.

1. Equipment found damaged or in other than new condition will be rejected as defective.

B. Keep switchgear, transformers, panels, luminaires, and all electrical equipment covered or closed to exclude dust, dirt, and splashes of plaster, cement, paint, or other construction material spray.

1. Equipment not free of all such contamination is not acceptable.

C. Provide enclosures and trims in new condition, free of rust, scratches, and other finish defects.

1. If damaged, properly refinish in a manner acceptable to the Contracting Officer.

3.11 UNINTERRUPTED SERVICE

A. Maintain electrical service to all functioning portions of the building throughout construction.

B. Pre-arrange with Contracting officer outages necessary for new construction.

1. Apply for scheduled shut-downs minimum 4 weeks prior to time needed and reconfirm a minimum of 72 hours prior to time needed.

2. Contractor is liable for any damages resulting from unscheduled outages or for those not confined to the pre-arranged times. Damages include costs incurred by the Contracting officer and by the Contracting officer’s tenants.

C. Maintain signal and communication systems and equipment in operation at all times.

1. Outages of these systems shall be treated the same as electrical power outages.

D. Maintain telephone services in accordance with Division 1 Section, “Temporary Facilities and

Controls”.

3.12 DEMOLITION AND SALVAGE

A. General:

1. Remove all electrical wiring, equipment, luminaires, etc., as may be encountered in removed or remodeled areas in the existing construction affected by this work.

2. Disconnect electrical service to hard wired equipment scheduled for removal under other

Divisions of Work.

3. Wiring which serves usable existing outlets shall be restored and routed clear of the construction or demolition.

4. Safely cut off and terminate all wiring to be abandoned and remove to leave site clean.

B. Reuse of existing:

1. Existing concealed conduits in good condition may be reused for installation of new wiring where available.

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2. Existing undamaged, properly supported surface conduits may be reused where surface conduits are called for, if the installation meets all workmanship requirements of the

Specifications.

3. Where new wiring is added or existing wiring disturbed in existing branch circuit raceways, all existing wires shall be replaced with new.

C. Salvage and Disposal:

1. Removed materials not scheduled for reuse shall become the property of the Contractor for removal from the site, except for those items specifically indicated on the Demolition

Drawings for salvage or reuse or noted on the pre-demo walk-through.

2. Neatly store salvaged items at one location at the site where directed by the Contracting

Officer.

3. Salvage properly operating circuit breakers from panels scheduled for removal and use to replace faulty or inadequate breakers in existing panels scheduled to remain.

3.13 WIRING IN PRECAST CONSTRUCTION

A. Coordinate installation of electrical conduit, boxes, fittings, anchors, and miscellaneous items to be concealed in precast concrete assemblies with the General Contractor.

B. Where electrical items are required to be installed in concrete assemblies precast off-site, it will be the Electrical Contractor’s responsibility to place the electrical items necessary in the concrete at the off-site locations or pay for the General Contractor to make arrangements for the installation of these items in the precast assemblies. The Electrical Contractor will be held responsible for the proper placement and locations of electrical items at the off-site location.

3.14 COMPLETION AND TESTING

A. General:

1. Comply with Division 1 Section, “Quality Requirements”.

B. Upon completion, test systems to show that installed equipment operates as designed and specified, free of faults and unintentional grounds.

1. Schedule system tests so that several occur on the same day.

2. Coordinate testing schedule with construction phasing.

3. Conduct tests in the presence of the Contracting Officer or its representative.

4. Notify the Contracting Officer of tests 48 hours in advance.

C. Engage a journeyman electrician with required tools to conduct equipment tests. Arrange to have the equipment factory representative present for those test where the manufacturer’s warranty could be impacted by the absence of a factory representative.

D. Perform tests per the requirements of each of the following systems:

1. Low voltage distribution system.

2. Fire alarm system.

3. Lighting system.

E. Provide a written record of performance tests and submit with operation and maintenance data.

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END OF SECTION 26 05 01

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040820 LOW VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

SECTION 26 05 19- LOW VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 1 Specification Sections, apply to this Section.

B. The provisions of Division 26 Section, Electrical General Provisions apply to this section.

1.2 SUMMARY

A. This Section includes:

1. Copper conductors. Indicated sizes shall be considered minimum for ampacities and voltage drop requirements.

2. Conductors for special systems shall be as recommended by the equipment manufacturer except as noted.

3. Deliver conductors to the job site in cartons, protective covers, or on reels.

B. Related Sections include:

1. Section 26 05 26 Grounding and Bonding for Electrical Systems.

2. Section 26 05 33 Raceways and Boxes for Electrical Systems.

3. Section 26 05 53 Identification for Electrical Systems.

1.3 REFERENCED STANDARDS

A. ASTM: American Society For Testing and Materials:

1. ASTM B 3 – Soft or Annealed Copper Wire.

2. ASTM B 8 – Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft.

3. ASTM B 33 – Tinned Soft or Annealed Copper Wire for Electrical Purposes.

B. ICEA: Insulated Cable Engineers Association:

1. S-95-658 – Non-shielded 0-2 kV Cables

C. IEEE: Institute of Electrical and Electronic Engineers:

1. IEEE 383 – Type Test of Class IE Electric Cables, Field Splices, and Connections.

D. UL: Underwriters Laboratories:

1. UL 44 – Rubber-Insulated Wires and Cables.

2. UL 83 – Thermoplastic-Insulated Wires and Cables.

3. UL 1277 – Type TC Power and Control Tray Cable.

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1.4 SUBMITTALS

A. Submit product data for the following materials:

1. Single conductor 600-volt power and control conductors.

2. MC cable.

B. Submittals of the following materials shall consist only of a listing of the manufacturer’s name and the applicable catalog numbers of the items to be utilized.

1. Connectors.

2. Branch circuit conductor splices.

3. Splices with compression fitting and heat-shrinkable insulator.

C. Submit cable test data per testing requirements of Part 3.

PART 2 - PRODUCTS

2.1 CONDUCTORS – 600V

A. Type:

1. Copper: No. 12 AWG minimum size unless noted otherwise. No. 12 and No. 10, solid or stranded, No. 8 or larger, Class B concentric or compressed stranded.

2. Aluminum is not permitted and shall not be utilized.

B. Insulation:

1. THHN/THWN-2 for conductors 6 AWG and smaller.

2. XHHW-2 for conductors 4 AWG and larger.

C. Thru wiring for all lighting fixtures shall be rated for 90 degree C minimum.

D. Manufacturers: General, Essex, Southwire, or equivalent.

2.2 POWER LIMITED WIRING

A. Copper, stranded or solid as recommended by the system manufacturer.

B. Insulation shall be appropriate for the system and location used.

2.4 MC CABLE

A. Sheath: Steel, of the interlocking metal type, continuous and close fitting. The sheath shall not be considered a current carrying or grounding conductor.

B. Conductors: Solid copper, of the same ampacity as the conduit/wire system indicated for the specific location. Provide separate green insulated grounding conductors in circuits where an isolated ground is called for.

2.5 CONNECTORS – 600V AND BELOW

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A. Branch Circuit Conductor Splices:

1. Live spring type, Scotchlok, Ideal Wire Nut, Buchanan B-Cap, or 3M Series 560 self-stripping type.

B. Cable Splices: Compression tool applied sleeves, Kearney, Burndy, or equivalent with 600V heat shrink insulation. Except where specifically indicated on the plans, all proposed splice locations shall be submitted for review by the Contracting Officer.

C. Terminator Lugs for Stranded Wire:

1. 10 AWG Wire and Smaller: Spade flared, tool applied.

2. 8 AWG Wire and Larger: Compression tool applied, Burndy, Anderson, or equivalent.

3. Setscrew type terminator lugs furnished as an integral part of switches and circuit breakers will be acceptable.

PART 3 - EXECUTION

3.1 CONDUCTORS

A. Pulling compounds may be used for pulling all conductors. Clean residue from the conductors and raceway entrances after the pull is made.

B. Pulleys or blocks shall be used for alignment of the conductors when pulling. Pulling shall be in accordance with manufacturer’s specifications regarding pulling tensions, bending radii of the cable, and compounds.

C. Make up and insulate wiring promptly after installation of conductors. Wire shall not be pulled in until all bushings are installed and raceways terminations are completed. Wire shall not be pulled into conduit embedded in concrete until after the concrete is poured and forms are stripped.

D. Provide a dedicated neutral conductor with each branch circuit, do not use a shared neutral conductor between phases unless specifically requested or directed.

3.2 MC CABLE

A. No MC type cabling shall be provided in walls in new construction, unless directed otherwise.

MC is allowed only where concealed within wall, ceiling cavities, and location where cables are not exposed to a possibility of being damage.

B. MC cable shall not be used for branch circuit homeruns to branch panelboards. EMT or RMC conduit shall be utilized for all branch circuit homeruns to branch panelboards.

3.4 CONNECTORS

A. Control and special systems wires shall be terminated with a tool applied spade flared lug when terminating at a screw connection.

B. All screw and bolt type connectors shall be made up tight and retightened after an eight hour period.

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C. All tool applied compression connectors shall be applied per manufacturer’s recommendations and physically checked for tightness.

3.5 COLOR CODING

A. Secondary service, feeders, and branch circuit conductors shall be color coded. Phase color code to be consistent at all feeder terminations, A-B-C left-to-right, A-B-C top-to-bottom, or A-B-C front-to-back. Color code shall be as follows:

120/240 volt

208Y/120 volt

Phase

480 volt

480Y/277 volt

Black A Brown

Red B Orange

Blue C Yellow

White Neutral Gray*

Green Ground** Green

* or white with colored (other than green) tracer

**Ground for isolated ground receptacles shall be green with yellow tracer.

B. Use solid color compound or solid color coating for No. 12 and No. 10 branch circuit conductors and neutral sizes.

C. Phase conductors No. 8 and larger color code using one of the following:

1. Solid color compound or solid color coating.

2. Stripes, bands, or hash marks of color specified above.

3. Colored as specified using 3/4-inch wide tape. Apply tape in half overlapping turns for a minimum of three inches for terminal points and in junction boxes, pull boxes, troughs, manholes, and handholes. Apply the last two laps of tape with no tension to prevent possible unwinding. Where cable markings are covered by tape, apply tags to cable stating size and insulation type.

D. Switchlegs, travelers, etc., to be consistent with the phases to which connected or a color distinctive from that listed.

E. Color-coding of the flexible wiring system conductors and connectors shall be the manufacturer’s standard.

F. For modifications and additions to existing wiring systems, color-coding shall conform to the existing wiring system.

3.6 FIELD TESTING

A. All 600-volt rated conductors shall be tested by the Contractor for continuity. Conductors 100A and over in size shall be meggered after installation and prior to termination. Provide the megger, rated 1,000 volts d.c., and record and maintain the results, in tabular form, clearly identifying each conductor being tested.

1. Replace cables when test value is less than 15 megaohms.

2. Cable test submittal shall include results, equipment used, and date.

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END OF SECTION 26 05 19

SEKI Lodgepole – Visitor Center 26 05 26 - 1

040820 GROUNDING AND BONDING

SECTION 26 05 26 - GROUNDING AND BONDING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 1 Specification Sections, apply to this Section.

B. The provisions of Division 26 Section, Electrical General Provisions, apply to this section.

1.2 SUMMARY

A. This Section includes:

1. Provide complete ground systems as indicated. Include conduit system, transformer housings, switchboard frame and neutral bus, motors, and miscellaneous grounds required.

2. Provide 600 volt insulated main bonding jumper for utility company connection between ground bus in switchgear lineup and ground termination point or service ground in transformer vault as directed by the utility.

3. Provide an insulated ground conductor in every conduit or raceway containing power conductors.

4. Continue existing system as specified herein and shown on the Drawings.

B. Related Sections include:

1. Section 26 05 19 Low Voltage Electrical Power Conductors and Cables.

2. Section 26 05 33 Raceways and Boxes for Electrical Systems.

3. Section 26 27 26 Wiring Devices.

PART 2 - PRODUCTS

2.1 GROUND CONDUCTORS

A. Green insulated copper for use in conduits, raceways, and enclosures.

B. Bare copper for ground grids and grounding electrode systems.

2.2 CONNECTORS

A. Cast, set screw or bolted type.

B. Form poured, exothermic welds.

C. Grounding lugs where provided as standard manufacturer’s items on equipment.

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2.3 GROUND BAR

A. Provide a ground bar at each location shown on the Drawings. Bar shall be 1000A rated copper bus nominally 1/4"x4"x12" long or as shown on the plans.

B. Provide 1/4-inch and 1/2-inch bolt holes per ANSI TIA/EIA 607 standards for telecom ground bars.

C. Mount ground bar with stand-off devices to provide a minimum of 1-1/2 inches free space behind bar for access to lug nuts and washers.

2.4 GROUND RODS

A. Copperclad steel, 5/8"x10'-0" long ground rods. Where ground wells are indicated, provide a 12-inch deep, 8-inch diameter precast concrete well with flush lid for accessibility and inspection of welded connections, RCP Vaults No. 12R12A with 12R12-t cover.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Grounding Conductors: Sized in accordance with Article 250, Tables 250.66 and 250.122 of the

National Electrical Code.

B. Grounding Conductor Connectors: Made up tight and located for future servicing and to insure low impedance.

C. Ground the electrical system, the cold-water service, structural steel, and transformers to the building ground grid.

D. All Plug-in Receptacles: Bonded to the boxes, raceways, and grounding conductor.

E. Provide a separate insulated grounding conductor in every branch circuit and feeder.

3.2 GROUND RING

A. Provide exterior ground ring/ground grid as indicated, with pigtails for extension as indicated. All connections shall be exothermic welds.

3.3 UFER GROUND

A. Provide a concrete encased building grounding electrode where shown on the Drawings.

Grounding electrode shall consist of a minimum of 20 feet of No. 4/0 bare copper conductor cast into the bottom 6 inches of an exterior concrete foundation or footing.

3.4 EQUIPMENT

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A. Provide separate green insulated equipment ground conductor in all non-metallic and flexible electrical raceways. Effectively ground all luminaires, panels, controls, motors, disconnect switches, exterior lighting standards, and noncurrent carrying metallic enclosures. Use bonding jumpers, grounding bushings, lugs, buses, etc., for this purpose.

B. Provide grounding bushings on all feeder conduit entrances to panels and equipment enclosures and bond bushings to enclosures with minimum 10 AWG conductor. Connect the equipment ground to the building system ground. Use the same size equipment ground conductors as phase conductors, up through 10 AWG.

3.5 GROUND BAR

A. Drill ground bar as necessary for attachment of all grounding conductors as required.

B. Utilize 2-hole bar for terminating 4/0 AWG and larger ground conductors.

C. Bond ground bar to adjacent structural steel with #4/0 bare copper cable, using form poured exothermic welds.

3.6 GROUND RESISTANCE TEST

A. Ground electrode resistance test shall be accomplished with a ground resistance direct-reading single test meter utilizing the Fall-of-Potential method and two reference electrodes. Perform test prior to interconnection to other grounding systems. Orient the concrete-encased ground electrode to be tested and the two reference electrodes in a straight line spaced fifty (50) feet apart. Drive the two reference electrodes five (5) feet deep.

B. Test results shall be in writing and shall show temperature, humidity, and condition of the soil at the time of the tests. In the case where the ground resistance exceeds 5 ohms the Contracting

Officer will issue additional instructions.

END OF SECTION 26 05 26

SEKI Lodgepole – Visitor Center 26 05 29 - 1

040820 HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

SECTION 26 05 29 - HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

1.1 SECTION INCLUDES

A. Support and attachment components for equipment, conduit, cable, boxes, and other electrical work.

B. Conduit and equipment supports.

C. Anchors and fasteners.

1.2 REFERENCE STANDARDS

A. ASTM A123/A123M - Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products; 2013.

B. ASTM A153/A153M - Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel

Hardware; 2009.

C. ASTM B633 - Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel;

2013.

D. MFMA-4 - Metal Framing Standards Publication; Metal Framing Manufacturers Association;

2004.

E. NECA 1 - Standard for Good Workmanship in Electrical Construction; National Electrical

Contractors Association; 2010.

F. NFPA 70 - National Electrical Code; National Fire Protection Association; Most Recent Edition

Adopted by Authority Having Jurisdiction, Including All Applicable Amendments and

Supplements.

PART 2 - PRODUCTS

2.1 SUPPORT AND ATTACHMENT COMPONENTS

A. General Requirements:

1. Provide all required hangers, supports, anchors, fasteners, fittings, accessories, and hardware as necessary for the complete installation of electrical work.

2. Provide products listed, classified, and labeled by Underwriter's Laboratories Inc. (UL) or testing firm acceptable to authority having jurisdiction as suitable for the purpose indicated, where applicable.

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3. Where support and attachment component types and sizes are not indicated, select in accordance with manufacturer's application criteria as required for the load to be supported with a minimum safety factor. Include consideration for vibration, equipment operation, and shock loads where applicable.

4. Do not use products for applications other than as permitted by NFPA 70 and product listing.

5. Steel Components: Use corrosion resistant materials suitable for the environment where installed.

a. Zinc-Plated Steel: Electroplated in accordance with ASTM B633.

b. Galvanized Steel: Hot-dip galvanized after fabrication in accordance with ASTM

A123/A123M or ASTM A153/A153M.

B. Conduit and Cable Supports: Straps, clamps, etc. suitable for the conduit or cable to be supported.

1. Conduit Straps: One-hole or two-hole type; steel or malleable iron.

2. Conduit Clamps: Bolted type unless otherwise indicated.

C. Outlet Box Supports: Hangers, brackets, etc. suitable for the boxes to be supported.

D. Metal Channel (Strut) Framing Systems: Factory-fabricated continuous-slot metal channel (strut) and associated fittings, accessories, and hardware required for field-assembly of supports.

1. Comply with MFMA-4.

E. Hanger Rods: Threaded zinc-plated steel unless otherwise indicated.

F. Anchors and Fasteners:

1. Unless otherwise indicated and where not otherwise restricted, use the anchor and fastener types indicated for the specified applications.

2.2 MANUFACTURERS

A. Conduit Fasteners: OZ/Gedney, T&B, Minerallac, or approved equivalent

B. Spring Fasteners: Erico, B-Line Systems, or approved equivalent.

C. Steel Channel and Rod: B-Line Systems, Unistrut, Kindorf, or approved equivalent.

D. Anchors-Drill In: Hilti, Rawlplug, Star Expansion, Redhead, or approved equivalent.

E. Substitutions: See Section 016000 - Product Requirements or approved equivalent.

2.3 MATERIALS

A. Hangers, Supports, Anchors, and Fasteners - General: Corrosion-resistant materials of size and type adequate to carry the loads of equipment and conduit, including weight of wire in conduit.

B. Supports: Fabricated of structural steel or formed steel members; galvanized.

C. Anchors and Fasteners:

1. Do not use powder-actuated anchors, spring clips, or beam clamps.

2. Obtain permission from Contracting Officer before using powder-actuated anchors.

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3. Concrete Structural Elements: Use precast inserts, expansion anchors, powder-actuated anchors, or preset inserts.

4. Steel Structural Elements: Use beam clamps, steel spring clips, steel ramset fasteners, or welded fasteners.

5. Concrete Surfaces: Use self-drilling anchors or expansion anchors.

6. Hollow Masonry, Plaster, and Gypsum Board Partitions: Use toggle bolts or hollow wall fasteners.

7. Solid Masonry Walls: Use expansion anchors or preset inserts.

8. Sheet Metal: Use sheet metal screws.

9. Wood Elements: Use wood screws.

D. Formed Steel Channel:

1. Substitutions: See Section 016000 - Product Requirements.

2. Description: 1.5 inch by 1.5 inch, 12-gauge, electro-galvanized steel channel, with pre-drilled mounting holes.

3. Fittings and Straps: Manufactured for steel channel use; electro-galvanized finish.

4. Spring Nuts and Bolts: Manufactured for steel channel use; electro-galvanized finish.

6. Substitutions: See Section 016000 - Product Requirements.

E. Concrete Inserts: Pressed galvanized steel, spot insert, with oval slot capable of accepting support nuts of 1/4-inch to 1/2-inch diameter thread.

F. Threaded Rod: Galvanized rod, sized for the load unless other indicated.

G. Conduit Fasteners:

1. Indoor Dry Locations: Plated straps and hangers.

2. Outdoor, Damp and Wet Locations: Galvanized straps and galvanized hangers. Equip straps with clamp backs when installing to concrete or metal surfaces.

H. Anchors and Fasteners:

1. Expansion, Stud and Rod Coupling Anchors: Zinc plated carbon steel. Hilti Kwik Bolt II series or equivalent.

2. Adhesive Anchors: Self-Contained capsule with quartz sand, hardening agent and vinylester resin. Hilti HVA Adhesive System-HAS Series or equivalent.

3. Sleeve Anchors: Zinc plated carbon steel. Hilti HX series or equivalent.

4. Plastic Screw Anchors: Screw size 10 by 1 inch, with phillips head. Molded collar and ribs.

Hilti PSA series or equivalent.

I. Spring Fasteners:

1. Description: Fabricated from high carbon, spheroidized annealed stripped steel.

2. Loading: Manufactured to withstand a load equal to 3 times the specified rating.

3. Finish: Corrosion resistant coating that meets the 72-hour salt spray rust test criteria.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install products in accordance with manufacturer's instructions.

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B. Install support and attachment components in a neat and workmanlike manner in accordance with

NECA 1.

C. Provide independent support from building structure. Do not provide support from piping, ductwork, or other systems.

D. Unless specifically indicated or approved by Contracting Officer, do not provide support from suspended ceiling support system or ceiling grid.

E. Unless specifically indicated or approved by Contracting Officer, do not provide support from roof deck.

F. Do not penetrate or otherwise notch or cut structural members without approval of Structural

Contracting officer.

G. Equipment Support and Attachment:

1. Use metal fabricated supports or supports assembled from metal channel (strut) to support equipment as required.

2. Use metal channel (strut) secured to studs to support equipment surface-mounted on hollow stud walls when wall strength is not sufficient to resist pull-out.

3. Use metal channel (strut) to support surface-mounted equipment in wet or damp locations to provide space between equipment and mounting surface.

4. Securely fasten floor-mounted equipment. Do not install equipment such that it relies on its own weight for support.

H. Secure fasteners according to manufacturer's recommended torque settings.

I. Remove temporary supports.

J. Install hangers and supports in accordance with manufacturer's instructions as required to adequately and securely support electrical system components, in a neat and workmanlike manner, as specified in NECA 1.

1. Do not fasten supports to pipes, ducts, mechanical equipment, or conduit.

2. Obtain permission from Contracting Officer before drilling or cutting structural members.

K. Rigidly weld support members or use hexagon-head bolts to present neat appearance with adequate…