Attach-2-Specifications.pdf

UVALDE NFH SOLAR PV INSTALLATION

UVALDE, TEXAS 2020

SPECIFICATIONS

TABLE OF CONTENTS

SECTION

01009 GENERAL INFORMATION AND REQUIREMENTS

16050 BASIC ELECTRICAL MATERIALS AND METHODS

16060 GROUNDING AND BONDING

16120 CONDUCTORS AND CABLES

16130 RACEWAYS AND BOXES

16410 EINCLOSED SAFETY SWITCHES

16442 PANELBOARDS

16630 UTILITY GRID-TIED PV ELECTRICAL GENERATION SYSTEMS

DRAWING

TABLE OF CONTENTS

DRAWING

1 CS Cover Map, Notes & Index of Drawings 2 L1 Notes and Legends 3 S1 Building Site Map Plan 4 PV1 PV One-line Electrical Diagram & Notes - 480/277VAC 5 PV2 PV Nameplate Label Schedule – NEC Label Details 6 Reference Drawing 1 - Existing One-Line Diagram 7 Reference Drawing 2 - Existing Office/Visitor Center Floor Plan 8 Reference Drawing 3 – Existing Electrical Panel Schedules

GENERAL INFORMATION AND REQUIREMENTS 01009-1

SECTION 01009 –GENERAL INFORMATION AND REQUIREMENTS

PART 1 - GENERAL

1.1 SUMMARY

A. GENERAL DESCRIPTION OF WORK REQUIRED IN THIS CONTRACT: The work shall consist of providing all labor, equipment, supplies and materials, to perform the following work at the Uvalde National Fish Hatchery (NFH) in accordance with these plans and specifications:

1. Design a 45Kw-AC solar photo-voltaic (PV) electric generation system in accordance with these plans and specifications and in accordance with the 2017 NEC (NFPA-70).

The design shall include detailed engineered drawings showing the PV array structural details, electrical equipment installation details, wire sizes, grounding details, and equipment technical cut-sheets. This shall also include acquiring the appropriate local utility’s Inter-connection agreement for the full 45Kw-AC PV generation system and obtain the new applicable utility rate tariff schedule.

2. Install ONLY, a fully operational, 30Kw-AC, grid-tied, PV system for the hatchery headquarters office/visitor center building in accordance with the approved design submittal. The remaining 15Kw-AC PV generation system will be install the future when the funds become available.

3. 3. The project also includes working with the local electric utility provider to provide all additional equipment required to connect the new PV electrical generation system to the local utility grid.

B. WORK LOCATION: The address of the work is at the Uvalde National Fish Hatchery, located on FM 481, approximately 2 miles west of the intersection of Hwy. 90 and FM 481. From Uvalde, drive west on Hwy. 90, turn left onto FM 481, drive approximately 2 miles.

C. SITE VISIT: Contractors shall contact Dr. Patricia Duncan, Project Leader, Uvalde National Fish Hatchery, telephone 830-278-2419 for scheduling appropriate time to complete the required work.

1.2 PERFORMANCE TIME: Performance time begins the day after the receipt of the Notice of Award. The government would like to have the project completed within 120 calendar days.

The performance time shall include submitting the detailed technical performance work statement proposal for approval, material and equipment acquisition, installation, testing, adjusting, reporting, clean-up, final inspection and project closeout.

1.3 REFERENCES: Referenced Standards are listed in the applicable specification section.

1.4 CODE COMPLIANCE: Project shall comply with the following:

A. Appropriate articles of the National Electric Code (NEC) version 2017, also known as NFPA 70.

GENERAL INFORMATION AND REQUIREMENTS 01009-2

B. Appropriate parts of the current version of Occupational Health and Safety Act (OSHA)

1.5 SITE CONDITIONS

A. Limited amounts of non-potable water is available for construction purposes. Contractor shall provide drinking water for all construction crews. All water expenses incurred during contract shall be incurred by the contractor.

B. Electrical power for construction purposes:

1. Refer to drawings for description of electrical power available on site. Contractor shall make arrangements as necessary for its use.

C. Provide notice to Fish Hatchery Manager for his/her approval at least 48 hours in advance of any requested power outage

D. EXISTING UNDERGROUND SURVEYS- Contractor shall conduct the following underground surveys to locate and mark any exiting underground utilities or water lines before performing any earth excavations or earth moving operations around the work site associated with the contract’s work execution:

1. Utility Locator Service: Notify local utility locator serving the Project area to locate and mark known utilities around the work site.

2. Contractor shall perform an underground survey for existing underground metallic pipe-lines, warning tapes, and electrical circuits before beginning any earth excavations or moving operations around the work site.

3. Contractor shall inquire and consult with hatchery personnel to identify any known underground utility, service, electrical, phone, and etc. before beginning any earth excavations or moving operations around the work site.

E. Existing property not indicated for demolition, shall be protected. All damage by Contractor’s activities shall be repaired by the Contractor at no additional cost to the Government.

F. BEFORE PERFORMING ANY ON-SITE MODIFICATION to the existing electrical, control, mechanical, plumbing systems, the contractor shall witness the current operational condition of the system or equipment and note any malfunctioning equipment in the building. The government’s designated construction inspector (CI) shall demonstrate the operations of the various existing systems. This demonstration shall be documented in the CI’s daily log along with documenting any specific operational problems or existing condition issues. Both, the contractor’s designated on-site representative and the government CI shall sign the daily log agreeing to the current operation conditions. The government inspector shall provide copies of the signed daily log to the contractor, the Contracting Officer (CO), the hatchery manager, and the Contracting Officer’s Representative (COR) before disturbing the existing system.

G. PROTECTION OF EXISTING LANDSCAPE: Protect all vegetation inside and outside work limits. All rutting caused by Contractor activities shall be filled and contoured to match adjacent areas. Areas damaged by Contractor activities shall be repaired at no addition cost to the government.

H. This is a NON SMOKING facility. Contractor personnel are not allowed to smoke on FWS property. Smoking is only allowed in contractor’s personal vehicles and all trash generated from such activities must be removed from FWS grounds.

GENERAL INFORMATION AND REQUIREMENTS 01009-3

1.6 SUBMITTALS

A. PROPOSAL SUBMITTAL REQUIREMENTS: “Request for Proposals” shall include the following which will be evaluated for contract award:

1. Qualifications

2. Past Similar Experience

3. Proposed Project Implementation Plan

a. Shop drawing showing equipment installation locations

b. Technical data sheets for major pieces of equipment.

c. General description of changes, modification to existing infrastructure

d. Written description of sequence of operations.

e. List of applicable codes and standards to be followed and incorporated into the required work.

f. List of inspections, and tests that will be performed and submitted to the COR to prove the intent of the contract is satisfactory, reliable and safe. This shall include providing start-up and commissioning procedure to followed.

g. Proposed Project Schedule.

4. Price for the stated work objectives.

5. Refer to Contract FAR Clauses for Proposal Evaluation procedures.

B. SUBMITTAL PROCEDURES AND REQUIRMENTS AFTER AWARD:

1. All Submittals, technical data for materials and supplies to be provided under the contract, Request for Information (RFI), and Request for Contract Changes, shall be delivered to the governments designated Contracting Officer (CO) and/or Contracting Officer’s Representative (COR) at U.S. Fish and Wildlife Service, Region 2, Division of Engineering, P.O. Box 1306, Albuquerque, NM 87103-1306. The designated COR will be assigned by the CO as part of the Contract Award Package along with their contact information.

2. Contractor shall email electronic (PDF) submittal drawings, specification, shop drawings and etc, to the designated government COR for review, comment, and approval. After reviewing the submittals, the CO/COR will return the appropriate electronic (PDF) comments and approvals by email to the contractor’s designated project manager.

Contractor shall be responsible for distributing the government’s review, comments and approvals to his suppliers and sub-contractors.

3. Submittals shall come directly from the Contractor with their stamp and signature of approval; submittals will not be accepted from sub-contractors or suppliers.

4. Do not commence with work which requires review of any submittals until receipt of returned submittals with an acceptable action. Do not allow submittals without an acceptable action marking to be used for the project.

5. There will be no approval of technical data submittals prior to contract award.

6. All Technical Product Data, Description and Shop Drawings shall be submitted to the designated Contracting Officer’s Representative (COR) for review and approval before ordering or installing equipment. Submittals will be evaluated based on the contract requirements stated in the specifications and on the drawings. Refer to specification sections for submittals required. Unapproved equipment may not be accepted.

7. Each Technical Submittal shall have an appropriately filled out USFWS Submittal Transmittal Form (#REN-021) which will serve as a submittal summary and tracking device. The form will be provided as part of the Contract Award Package.

8. Each Technical Submittal shall be highlighted to clearly show contract compliance requirements and what options or features will be provided.

GENERAL INFORMATION AND REQUIREMENTS 01009-4

9. APPROVALS: Approval of the technical submittals is an indication that the Contractor's submittals have been reviewed and that there are no exceptions taken, except as noted.

Approval of deviations shall apply only to those deviations or omissions from the requirements of the drawings and specifications brought to the Contracting Officer's attention in writing. After an item has received an approval and a substitution is necessary, resubmit the new substitute item for a new approval. Approval of submittals does not relieve the Contractor of errors, omissions, or from complying with the Contract’s requirements.

10. REVIEW TIME: Allow at least 10 WORKING DAYS for review, plus transmittal time back and forth.

11. The Technical Submittal process SHALL NOT BE USED for Requesting Information (RFI) or clarification. Contractor shall submit separate written RFI’s to both the CO and the COR in a form which will allow for a formal written response from the CO and/or COR. Each RFI shall have a separate identifying number and date.

12. The Technical Submittal process SHALL NOT BE USED for requesting changes or price changes to the contract. Refer to FAR Clauses for Contract Change procedures.

C. PROJECT CLOSEOUT SUBMITALS

1. Test and Inspection Reports: Submit to the designated COR all contract specified inspections/witnessing reports, tests results documentation and/or commissioning test results before requesting final inspection. Refer to individual specification sections for required inspection, test, and reports.

2. Operation and Maintenance Manual: Submit two copies of Operation and Maintenance Manuals to the COR which shall include product approved technical cut sheets and sequence of operations for the new equipment’s maintenance and operating instructions.

3. Warranties: In addition to one year construction warranty, provide standard manufacturer's written warranty, signed by manufacturer agreeing to promptly repair or replace products that fail in materials or workmanship for the period as specified in each of the technical specification sections.

1.7 QUALITY ASSURANCE:

A. Qualifications: The contractor shall be a licensed GENERAL Contractor having successfully completed five projects of similar complexity and scope within the past three years.

B. Codes and Standards: The work shall comply with codes and standards applicable to each type of work and as listed in the individual specification sections. This contract incorporates materials, applications, and tests by reference, with the same force and effect as if they were given in full text.

C. Conflict: Where a conflict occurs between reference documents, drawings, and project specifications, refer to the FAR’s and the Contracting office for resolution.

D. Product basis: Where specifications or drawings call out a specific product or manufacturer, it is understood that an equal or better product is acceptable, as approved in the submittal process.

PART 2 - PRODUCTS – NOT USED- REFER TO INDIVIDUAL SPECIFIC TECHNICAL

SPECIFICATIONS FOR ALL NEW EQUIPMENT AND MATERIALS

GENERAL INFORMATION AND REQUIREMENTS 01009-5

PART 3 - EXECUTION

3.1 PROJECT MEETINGS:

A. Preconstruction Conference: Telephone conference call is anticipated.

B. Progress Meetings: To be held at the project site as required.

C. Inspections:

1. Contractor shall perform and maintain records of their construction inspection to ensure their own construction quality assurance and contract compliance. Refer to FAR 52.246

2. The government’s on-site construction inspector (CI) and/or COR will conduct routine inspections to monitor the contracts progress. Inspection of work items by the CI will not relieve the Contractor of the requirement to meet project specifications. The CI shall be informed 24 hours in advance of work requiring his observation. After being informed in advance, the CI’s non-attendance shall not prohibit the Contractor from proceeding with work in the CI’s absence.

3. For final inspection, notify the COR and CI in writing at least 14 working days before the completion date so the Government can schedule final inspection. The contractor’s project superintendent shall be present during the final inspection.

4. Notify COR and CI ten working days in advance of anticipated date for equipment start-up and operational tests.

3.2 SEQUENCING AND SCHEDULING WORK

A. Work Schedule: The schedule shall be submitted at the pre-work conference. When requested, submit an updated schedule within 3 calendar days. As a minimum, the estimated start and completion dates shall be shown on the schedule.

B. The Contractor’s normal work schedule shall be 7:30 a.m. to 4:00 p.m., Monday through Friday. No work shall be performed on Saturdays, Sundays, or federal holidays, unless authorized in writing by the Contracting Officer.

3.3 PROJECT AS-BUILT RECORD DRAWINGS: As the job progresses, continuously maintain as-built drawings of the work. The changes shall be noted legibly in red pencil or red ink.

These drawings shall be submitted to the COR prior to final inspection. Should final inspection reveal changes in the Project not so noted on the As-Built Drawings, the Contractor shall record these changes on the As-Built Drawings within 3 working days. Deliver completed As-Built Drawings to the COR at final inspection and before requesting final payment.

3.4 SAFETY:

A. SAFETY PLAN: Contractor shall submit, for approval before any work is conducted on site, a safety and a quality assurance plan for the project. Plans shall be site specific for this project.

The safety plan shall address all OSHA personnel safety equipment and clothing to be worn on the construction site.

GENERAL INFORMATION AND REQUIREMENTS 01009-6

B. SUPERINTENDENT RESPONSIBILITY: Contractor’s on-site superintendent shall ensure all personnel (including all sub contactors) comply with the approved safety plan/manual. In addition, the Superintendent shall ensure compliance with all applicable state and local safety codes and regulations including but not limited to Occupational Safety and Health Administration regulations, 29 CFR, Part 1926.

C. MSDS’s : Contractor shall maintain copies of all the Material Safety Data Sheets for all materials on the construction site for the duration of the contract.

D. DISPOSAL OF DEBRIS: Demolition debris shall be removed from the project site and disposed of in a legal disposal site by the Contractor. Contractor shall pay all fees required for disposal.

E. Work areas shall be roped off to alert unauthorized personnel to work in progress.

3.5 DELIVERY, STORAGE, AND HANDLING:

A. Delivery: Protect products incorporated into the work from damage while in transit to the site.

Products must be delivered in original unopened containers with manufacturer’s name, brand designation, and contents legibly indicated. The containers shall bear the referenced specification number, type, and class as applicable.

B. Contractor shall be responsible for providing all equipment and labor required for offloading/unloading all equipment and supplies to be provided under the contact. Contractor shall also inspect and accept all equipment and supplies delivered to the site. The government will not perform any offloading, inspection and accepting for the contractor.

C. Storage: Provide temporary storage facilities for products. Storage shall comply with the manufacturer’s instructions. The storage area shall permit access for inspection and handling.

D. Handling: Loading and unloading of products shall be protected from damage. Damaged products shall be replaced with new products; repairs shall not be acceptable.

3.6 PROJECT WARRANTEES:

A. All project construction shall be provided with a one-year warranty in accordance with FAR 52.246-21.

B. With respect to warranties, expressed or implied, from manufacturers or suppliers of materials or equipment furnished under the contract, the Contractor shall:

1. Obtain the most favorable warranties that would be given by the Contractor in normal commercial practices, but in no case less than called for by the specifications.

2. Submit warranties to the COR prior to the final inspection.

3.7 PAYMENTS:

A. Payments shall be made in accordance with procedures outline in FAR 52.232-27.

GENERAL INFORMATION AND REQUIREMENTS 01009-7

B. Construction progress payments will be made on a monthly basis based on the work completed per the approved Schedule of Values, as agreed to by the Construction Inspector and the Superintendent or Project Manager.

C. Retainage will not be implemented unless the Contracting Officer determines that construction progress and/or quality are not satisfactory.

3.8 SPECIFIC WORK REQUIREMENTS – REFER TO SPECIFIC TECHNICAL

SPECIFICATIONS.

END OF STATEMENT OF WORK

BASIC ELECTRICAL MATERIALS AND METHODS 16050 - 1

SECTION 16050 - BASIC ELECTRICAL MATERIALS AND METHODS

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Supporting devices for electrical components.

2. Electrical identification.

3. Utility electrical-metering components.

4. Fish and Wildlife Service (FWS) Owned Electric Metering Equipment

5. Electrical demolition.

6. Cutting and patching for electrical construction.

7. Touchup painting.

1.2 SUBMITTALS

A. Product Data:

1. FWS electricity-metering equipment: Submit manufactures engineering/ technical specification sheet providing a description type of meter, sensor, enclosures, data screens and accessories. Technical and performance data showing tested ratings complying with specification.

2. Electric Utility Required Equipment: Technical and performance data showing tested ratings complying with specification.

1.3 QUALITY ASSURANCE

A. 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.

B. Comply with NFPA 70.

1.4 COORDINATION

A. Coordinate chases, slots, inserts, sleeves, and openings with general construction work and to facilitate the electrical installations that follow. Set inserts and sleeves in poured-in-place concrete, masonry work, and other structural components as they are constructed.

B. Sequence, coordinate, and integrate installing electrical materials and equipment for efficient flow of the Work.

C. Coordinate electrical service connections to components furnished by utility companies.

1. Coordinate installation and connection of exterior underground and overhead utilities and services, including provision for electricity-metering components.

BASIC ELECTRICAL MATERIALS AND METHODS 16050 - 2

2. Comply with requirements of authorities having jurisdiction and of utility company providing electrical power and other services.

3. The local utility serving the new building site is Champion Energy Service, 1500 Randin Rd, Houston, TX 77073, Telephone: 1-877-653-5090, www.Championenergyservices.com. The servicing agency is AEP Central Texas, Telephone 1-866-223-8508.

D. Where electrical identification devices are applied to field-finished surfaces, coordinate installation of identification devices with completion of finished surface.

PART 2 - PRODUCTS

2.1 SUPPORTING DEVICES

A. Material: Cold-formed steel, with corrosion-resistant coating

B. Metal Items for Use Outdoors or in Damp Locations: Hot-dip galvanized steel.

C. Slotted-Steel Channel Supports: Flange edges turned toward web, and 9/16-inch- (14-mm-) diameter slotted holes at a maximum of 2 inches (50 mm) o.c., in webs.

D. Raceway and Cable Supports: Manufactured clevis hangers, riser clamps, straps, threaded C-clamps with retainers, ceiling trapeze hangers, wall brackets, and spring-steel clamps or click-type hangers.

E. Pipe Sleeves: ASTM A 53, Type E, Grade A, Schedule 40, galvanized steel, plain ends.

F. Cable Supports for Vertical Conduit: Factory-fabricated assembly consisting of threaded body and insulating wedging plug for non-armored electrical cables in riser conduits. Plugs have number and size of conductor gripping holes as required to suit individual risers. Body constructed of malleable-iron casting with hot-dip galvanized finish.

G. Expansion Anchors: Carbon-steel wedge or sleeve type.

H. Toggle Bolts: All-steel springhead type.

I. Powder-Driven Threaded Studs: Heat-treated steel.

2.2 ELECTRICAL IDENTIFICATION

A. Identification Devices: A single type of identification product for each application category.

Use colors prescribed by ANSI A13.1, NFPA 70, and these Specifications.

B. Raceway and Cable Labels: Comply with ANSI A13.1, Table 3, for minimum size of letters for legend and minimum length of color field for each raceway and cable size.

1. Type: Preprinted, flexible, self-adhesive, vinyl. Legend is over-laminated with a clear, weather- and chemical-resistant coating.

2. Color: Black letters on orange background.

http://www.championenergyservices.com/

BASIC ELECTRICAL MATERIALS AND METHODS 16050 - 3

3. Legend: Indicates voltage.

C. Colored Adhesive Marking Tape for Wires, and Cables: Self-adhesive vinyl tape, not less than 1 inch wide by 3 mils thick (25 mm wide by 0.08 mm thick).

D. Underground Warning Tape: Permanent, bright-colored, continuous-printed, vinyl tape with the following features:

1. Not less than 6 inches wide by 4 mils thick (150 mm wide by 0.102 mm thick).

2. Compounded for permanent direct-burial service.

3. Embedded continuous metallic strip or core.

4. Printed legend that indicates type of underground line.

E. Tape Markers for Wire: Vinyl or vinyl-cloth, self-adhesive, wraparound type with preprinted numbers and letters to identify panel board and circuit numbers.

F. Color-Coding Cable Ties: Type 6/6 nylon, self-locking type. Colors to suit coding scheme.

G. Engraved-Plastic Labels, Signs, and Instruction Plates: Engraving stock, melamine plastic laminate drilled for mechanical fasteners 1/16-inch (1.6-mm) minimum thickness for signs up to 20 sq. in. (129 sq. cm) and 1/8-inch (3.2-mm) minimum thickness for larger sizes. Engraved 1/8” high lettering in black letters on yellow background.

H. Mechanical Fasteners for Nameplates and Signs: Self-tapping, stainless-steel screws or No. 10/32 stainless-steel machine screws with nuts and flat and lock washers.

I. ARC FLASH HAZZARD WARNING LABELING: Provide NEC 110.16 required Arc Flash and Shock Hazard Labeling for all new electrical equipment provided in this project including but not limited to service equipment, switchboards, electric panels and transfer switches.

J. Provide a permanent, engraved, label showing the Available Fault-Current at the all new electrical service equipment per NEC 110.24 and 110.9.

2.3 UTILITY COMPANY'S ELECTRICITY METERING EQUIPMENT

A. Current-Transformer Cabinets: Comply with requirements of electrical power utility company.

B. Meter Sockets: Comply with requirements of electrical power utility company.

2.4 FACILITY (FWS) OWNED ELECTRIC METERING EQUIPMENT

A. Meter type: KWH Meter (KWh) with Power Demand (KW), Utility Grade Accuracy,

1. Electronic with digital LCD display.

2. Meter shall have non-volatile memory to maintain data during power failures.

3. Split-core current sensor designed and manufactured to function reliably with meter and for the type and range of the load to be monitored.

B. Load Monitoring electrical Characteristics:

1. 480/277VAC, 3 Phase, 4 Wire – Solar PV Generation Monitoring

BASIC ELECTRICAL MATERIALS AND METHODS 16050 - 4

C. Certifications:

1. Accuracy – ANSI C12.1 and C12.16

2. UL Listed – Utility-Grade Accuracy

D. Enclosure:

1. NEMA 4X fiberglass for Out-door installation locations. Enclosure shall have lockable cover to prevent unauthorized access.

2. Single Meter Enclosure

E. Manufacture: E-Mon Class 2000- Model#E20-408100-J-D-KIT or an approved equal.

2.5 TOUCHUP PAINT

A. For Equipment: Equipment manufacturer's paint selected to match installed equipment finish.

B. Galvanized Surfaces: Zinc-rich paint recommended by item manufacturer.

PART 3 - EXECUTION

3.1 ELECTRICAL EQUIPMENT INSTALLATION APPLYING TO ALL NEW ELECTRICAL

INSTALLATIONS.

A. Headroom Maintenance: If mounting heights or other location criteria are not indicated, arrange and install components and equipment to comply with NEC 110.26 and provide the maximum possible headroom.

B. Materials and Components: Install level, plumb, and parallel and perpendicular to other building systems and components, unless otherwise indicated.

C. Equipment: Install to facilitate service, maintenance, and repair or replacement of components.

Connect for ease of disconnecting, with minimum interference with other installations.

D. Right of Way: Give way to all to piping systems or other systems which are installed at a required slope.

3.2 ELECTRICAL SUPPORTING DEVICE APPLICATION

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

B. Dry Locations: Steel materials.

C. Support Clamps for PVC Raceways: Click-type clamp system.

D. Selection of Supports: Comply with manufacturer's written instructions.

E. Strength of Supports: Adequate to carry present and future loads, times a safety factor of at least four; minimum of 200-lb (90-kg) design load.

BASIC ELECTRICAL MATERIALS AND METHODS 16050 - 5

3.3 SUPPORT INSTALLATION

A. Install support devices to securely and permanently fasten and support electrical components.

B. Install 1/4-inch- (6-mm-) diameter or larger threaded steel hanger rods, unless otherwise indicated.

C. Provide and arrange equipment supports so all vertical loads are not supported by raceways raceway terminals, enclosed conductors or by raceway supports.

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

E. Install sleeves for cable and raceway penetrations of 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 and wall assemblies. Install sleeves during erection of concrete and masonry walls.

F. Securely fasten electrical items and their supports to the building structure, unless otherwise indicated. Perform fastening according to the following unless other fastening methods are indicated:

1. Wood: Fasten with wood screws or screw-type nails.

2. Masonry: Toggle bolts on hollow masonry units and expansion bolts on solid masonry units.

3. New Concrete: Concrete inserts with machine screws and bolts.

4. Existing Concrete: Expansion bolts.

5. Instead of expansion bolts, threaded studs driven by a powder charge and provided with lock washers may be used in existing concrete.

6. Steel: Welded threaded studs or spring-tension clamps on steel. Field Welding shall comply with AWS D1.1.

7. Welding to steel structure may be used only for threaded studs, not for conduits, pipe straps, or other items.

8. Light Steel: Sheet-metal screws.

9. Fasteners: Select so the load applied to each fastener does not exceed 25 percent of its proof-test load.

3.4 IDENTIFICATION MATERIALS AND DEVICES

A. Install at locations for most convenient viewing without interference with operation and maintenance of equipment.

B. Coordinate names, abbreviations, colors, and other designations used for electrical identification with corresponding designations indicated in the Contract Documents or required by codes and standards. Use consistent designations throughout Project.

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

D. Identify raceways and cables with color banding as follows:

BASIC ELECTRICAL MATERIALS AND METHODS 16050 - 6

1. Locations: At changes in direction, at penetrations of walls and floors, at 50-foot (15-m) maximum intervals in straight runs, and at 25-foot (8-m) maximum intervals in congested areas.

E. Tag and label circuits designated to be extended in the future. Identify source and circuit numbers in each cabinet, pull and junction box, and outlet box. Color-coding may be used for voltage and phase identification.

F. Install continuous underground plastic markers during trench backfilling, for exterior underground power, control, signal, and communication lines located directly above power and communication lines. Locate 6 to 8 inches (150 to 200 mm) below finished grade. If width of multiple lines installed in a common trench or concrete envelope does not exceed 16 inches (400 mm), overall, use a single line marker.

G. Color-code 240/120VAC single/split phase system secondary service, feeder, and branch-circuit conductors throughout the secondary electrical system as follows:

1. Phase A: Black.

2. Phase B: Red.

H. Install engraved-laminated emergency-operating signs with white letters on red background with minimum 3/8-inch- (9-mm-) high lettering for emergency instructions on power transfer, load shedding, and other emergency operations.

I. Permanently identify required working space around all electrical equipment as required by

NEC 110.26

3.5 UTILITY COMPANY ELECTRICITY-METERING EQUIPMENT: Install equipment according to utility company's written requirements. Provide grounding and empty conduits as required by utility company.

3.6 FACILITY OWNED (FWS) METERING

A. Before installing the meter, the contractor shall inspect the installation location to ensure it is complies with meter manufacture’s installation recommendations and instructions. Ensure meter and sensor will provide proper and reliable monitoring for the equipment to be monitored.

Notify contracting officer representative if problems exist with installation location or meter.

B. Install separate FWS electric metering equipment for each building to comply with the Energy Policy Act of 2005.

C. Provide a separate FWS electric meter for the solar photovoltaic electrical generation system to track the amount of electrical power and energy generated by the system as shown on the drawings.

D. Coordinate all power interruptions with facility manager. Interruptions shall be mutually agreed upon.

E. Install facility owned meters and accessories, in accordance with the manufactures installation instructions at the location shown on the drawings.

BASIC ELECTRICAL MATERIALS AND METHODS 16050 - 7

F. Installation shall comply with all applicable articles of the latest National Electric Code.

G. Perform all required calibration and testing recommended by meter manufacture to ensure accurate meter readings.

3.7 DEMOLITION

A. Protect existing electrical equipment and installations indicated to remain. If damaged or disturbed in the course of the Work, remove damaged portions and install new products of equal capacity, quality, and functionality.

B. Accessible Work: Remove exposed electrical equipment and installations, indicated to be demolished, in their entirety.

C. Abandoned Work: Cut and remove buried raceway and wiring, indicated to be abandoned in place, 2 inches (50 mm) below the surface of adjacent construction. Cap raceways and patch surface to match existing finish.

D. Remove demolished material from Project site.

E. Remove, store, clean, reinstall, reconnect, and make operational components indicated for relocation.

3.8 CUTTING AND PATCHING

A. Cut, channel, chase, and drill floors, walls, partitions, ceilings, and other surfaces required to permit electrical installations. Perform cutting by skilled mechanics of trades involved.

B. Repair and refinish disturbed finish materials and other surfaces to match 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.

3.9 FIELD QUALITY CONTROL

A. Inspect installed components for damage and faulty work, including the following:

1. Supporting devices for electrical components.

2. Electrical identification.

3. Electricity-metering components.

4. Electrical demolition.

5. Cutting and patching for electrical construction.

6. Touchup painting.

3.10 REFINISHING AND TOUCHUP PAINTING

A. Refinish and touch up paint.

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

BASIC ELECTRICAL MATERIALS AND METHODS 16050 - 8

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

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

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

3.11 CLEANING AND PROTECTION

A. On completion of installation, including outlets, fittings, and devices, inspect exposed finish.

Remove burrs, dirt, paint spots, and construction debris.

B. Protect equipment and installations and maintain conditions to ensure that coatings, finishes, and cabinets are without damage or deterioration at time of Substantial Completion.

END OF SECTION 16050

GROUNDING AND BONDING 16060 - 1

SECTION 16060 - GROUNDING AND BONDING

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes methods and materials for grounding systems and bonding equipment.

1.2 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Field quality-control test reports.

1. Tests shall be to determine if ground resistance or impedance values remain within specified maximums, and instructions shall recommend corrective action if they do not.

1.3 QUALITY ASSURANCE

A. 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.

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

PART 2 - PRODUCTS

2.1 CONDUCTORS

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

B. Grounding Electrode Conductors: ASTM B 8. Stranded conductor in conduit.

C. Equipment Grounding Conductors: Insulated with green-colored insulation.

D. Bare Copper Conductors:

1. Solid Conductors: ASTM B 3.

2. Stranded Conductors: ASTM B 8.

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

4. Bonding Jumper: Copper tape, braided conductors, terminated with copper ferrules; 1-

5/8 inches (41 mm) wide and 1/16 inch (1.6 mm) thick.

5. Counterpoise: ASTM B 33. NO.32 Standard -32 strands of 17 Gauge, 7/16” diameter, braided smooth twist, 65500 circular mils.

E. Grounding Bus: Rectangular bars of annealed copper with insulators.

GROUNDING AND BONDING 16060 - 2

2.2 CONNECTORS

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

B. Bolted Connectors for Conductors and Pipes and Ground Rods: Shall be Grounding Pipe Clamps using copper or copper alloy, bolted pressure-type, with at least two bolts. Pipe connectors shall be proper for size of pipe. Connectors shall have separate bolted connections-one per conductor connection and one for pipe or ground rod connection. Single bolt compression type clamps for both ground rod and grounding conductor will not be accepted.

C. Welded Connectors: Exothermic-welding type with kits recommended by manufacturer for materials being joined and installation conditions. Cadweld or equal.

2.3 GROUNDING ELECTRODES

A. Ground Rods: Copper-clad steel 3/4 inch by10 feet (19 mm by 3 m) in diameter.

PART 3 - EXECUTION

3.1 SUMMARY OF PROJECT GROUNDING REQUIREMENTS

A. Tie NEW grounding PV system components required by NEC 690 into the refuge’s existing electrical service and lightning protection systems grounding system per NEC 250, 690, and 705 and NFPA 780.

B. Test and document installed grounding electrode system resistance for the new electrical service equipment (electric panel “MCB”) for the Office complex in accordance with paragraph 3.5 below.

C. Provide an effective electrical equipment grounding system for all new electrical circuits for the new PV Combiner electric panel and modified existing electrical circuits as specified by all NEC articles, contract drawings and contract specifications. Bond the equipment grounding system and electrical system’s grounded conductor only at the existing electrical service equipment and keep the two systems separated down stream per NEC250.24A-5.

D. Bond the following metal, non-electric system equipment and systems to the refuges existing grounding electrode system through an accessible equipment grounding connection.

1. PV array structure

2. PV module frames

3. PV DC electrical equipment

4. PV AC system electrical equipment.

3.2 APPLICATIONS

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

GROUNDING AND BONDING 16060 - 3

B. Exothermic-Welded Connections: Use for connections to ground rod connections and for all underground connections.

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

D. Specific Conductor Termination Connections:

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

2. Underground Connections: Welded connectors, except as otherwise indicated.

3. Connections to Ground Rods: Welded connectors.

4. Connections to Structural Steel: Welded connectors.

E. Underground Grounding Conductors: Use tinned copper conductor. Bury at least 6 inches (150

mm) below grade.

3.3 EQUIPMENT GROUNDING

A. Install insulated equipment grounding conductors inside conduit with all feeders and branch circuits. Metal conduit and raceways SHALL NOT BE USED as equipment grounding conductors. All raceways and conduits shall have an appropriately sized copper equipment grounding conductor (IAW NEC Table 250-122) ran with the circuit conductors.

3.4 INSTALLATION

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

B. Ground Rods: Drive rods until tops are 1 inches (25 mm) above final grade, unless otherwise indicated.

1. Interconnect ground rods with grounding electrode conductor above grade or as otherwise indicated.

2. For grounding electrode system, install at least two rods spaced at least one-rod length from each other and located at least the same distance from other grounding electrodes, and connect to the service grounding electrode conductor.

3. Use exothermic-welded connectors for all ground rods.

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

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

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

3. Use exothermic-welded connectors for outdoor locations, but if a disconnect-type connection is required, use a bolted clamp.

GROUNDING AND BONDING 16060 - 4

3.5 FIELD QUALITY CONTROL

A. Perform the following tests and inspections and prepare test reports:

1. Test completed grounding system at each location where a maximum ground-resistance level is specified, and at individual ground rods. Make tests at ground rods before any conductors are connected.

a. Measure ground resistance not less than two full days after last trace of precipitation and without soil being moistened by any means other than natural drainage or seepage and without chemical treatment or other artificial means of reducing natural ground resistance.

b. Perform and document a electrical system grounding electrode resistance test using a Clamp-On Ground Resistance Meter at the Main Bonding Jumper location.

c. Acceptable ground resistances shall not exceed the following values: 10 ohms

d. Excessive Ground Resistance: If resistance to ground exceeds specified values, notify Contracting Officer promptly and include recommendations to reduce ground resistance.

e. Report measured ground resistances in final report before final inspection and payment request.

END OF SECTION 16060

CONDUCTORS AND CABLES 16120 - 1

SECTION 16120 - CONDUCTORS AND CABLES

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

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

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

3. Sleeves and sleeve seals for cables.

B. Related Sections include the following:

1. Division 16 Section 16130 "Raceways and Boxes" for Type AC and MC cabling.

1.2 DEFINITIONS

A. Ampacity: Refer to current edition of NEC, article 100.

B. EPDM: Ethylene-propylene-diene tetrapolymer rubber.

C. NBR: Acrylonitrile-butadiene rubber.

1.3 SUBMITTALS: Provide Product Data: for each type of product indicated.

1.4 QUALITY ASSURANCE

A. 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.

B. Comply with NFPA 70.

C. At Final Inspection, provide torque-wrench to demonstrate proper conductor connection tightness on electrical service equipment and other connections as directed to by COTR.

1.5 COORDINATION: Set sleeves in cast-in-place concrete, masonry walls, and other structural components as they are constructed.

PART 2 - PRODUCTS

2.1 CONDUCTORS AND CABLES

A. Copper Conductors: Comply with NEMA WC 70.

CONDUCTORS AND CABLES 16120 - 2

B. Conductor Insulation: Comply with NEMA WC 70 for Types THHN-THWN, UF, USE.

C. Multiconductor Cable: Comply with NEMA WC 70 for armored cable, Type AC, metal-clad cable, Type MC, and Type USE with ground wire. See additional requirements specified in section 16130 “Raceways and Boxes” for Type AC and MC cables.

D. Solar PV Wire: UL4703- Type PV: Soft Annealed Stranded Copper with XLPE Insulation and UV-resistant Polyvinyl Chloride Jacket (PVC) having 2000V Maximum Operating Voltage and Rated temperature Range from -40ºC to 90ºC.

2.2 CONNECTORS AND SPLICES: Factory-fabricated connectors and splices of size, ampacity rating, material, type, and class for application and service indicated.

2.3 SLEEVES FOR CABLES

A. Steel Pipe Sleeves: ASTM A 53/A 53M, Type E, Grade B, Schedule 40, galvanized steel, plain ends.

2.4 SLEEVE SEALS

A. Description: Modular sealing device, designed for field assembly, to fill annular space between sleeve and cable.

1. Sealing Elements: EPDM interlocking links shaped to fit surface of cable or conduit.

Include type and number required for material and size of raceway or cable.

2. Pressure Plates: Plastic Include two for each sealing element.

3. Connecting Bolts and Nuts: Stainless steel of length required to secure pressure plates to sealing elements. Include one for each sealing element.

PART 3 - EXECUTION

3.1 CONDUCTOR MATERIAL APPLICATIONS

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

B. Branch Circuits: Copper. Solid for No. 10 AWG and smaller; stranded for No. 8 AWG and larger.

C. PV Source and Output Circuits: Copper, stranded, 12Awg or larger. Conductors smaller than 12Awg shall not be permitted.

CONDUCTORS AND CABLES 16120 - 3

3.2 CONDUCTOR INSULATION AND MULTICONDUCTOR CABLE APPLICATIONS AND

WIRING METHODS

A. Conductor sizes and types along with raceway sizes and types shall be as shown on drawings. If conductors and raceways are not shown on drawings, they shall be in accordance with the following:

1. Exposed Feeders: Type THWN-2, single conductors in raceway.

2. Feeders Concealed in Concrete, below Slabs-on-Grade, and Under-ground: Type THWN-

2 or XHHW-2 single conductors in raceway.

3. Exposed Branch Circuits:

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

b. Armored cable, Type AC per restrictions specified in 16130 “Raceways” paragraph 3.2.M “Flexible Metal Conduit Use”.

c. Metal-clad cable, Type MC per restrictions specified in 16130 “Raceways” paragraph 3.2.M “Flexible Metal Conduit Use”.

4. Branch Circuits Concealed in Concrete, below Slabs-on-Grade, and Underground:

Type THWN-2, single conductors in raceway.

5. Solar PV Source and Output Circuits: USE-2 Solar PV wire.

6. Inverter output circuit: THWN-2 in raceway

7. Exposed DC PV Wiring/cables: Solar PV Wire: UL4703- Type PV

3.3 INSTALLATION OF CONDUCTORS AND CABLES

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

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

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

D. Identify and color-code conductors and cables according to Division 16 Section "Electrical Basic Materials and Methods."

3.4 CONNECTIONS

A. Tighten electrical connectors and terminals according to manufacturer's published torque-tightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A and UL 486B. Record, document and submit torque termination values for conductor terminations 3Awg and larger to COTR before requesting final inspection.

B. Make splices and taps that are compatible with conductor material and that possess equivalent or better mechanical strength and insulation ratings than un-spliced conductors.

CONDUCTORS AND CABLES 16120 - 4

3.5 SLEEVE INSTALLATION FOR ELECTRICAL PENETRATIONS

A. Concrete Slabs and Walls: Install sleeves for penetrations unless core-drilled holes or formed openings are used. Install sleeves during erection of slabs and walls.

B. Cut sleeves to length for mounting flush with both wall surfaces.

C. Extend sleeves installed in floors 2 inches (50 mm) above finished floor level.

D. Size pipe sleeves to provide 1/4-inch (6.4-mm) annular clear space between sleeve and cable unless sleeve seal is to be installed

E. Seal space outside of sleeves with grout for penetrations of concrete and masonry.

F. Aboveground Exterior-Wall Penetrations: Seal penetrations using sleeves and mechanical sleeve seals. Size sleeves to allow for 1-inch (25-mm) annular clear space between pipe and sleeve for installing mechanical sleeve seals.

G. Underground Exterior-Wall Penetrations: Install cast-iron "wall pipes" for sleeves. Size sleeves to allow for 1-inch (25-mm) annular clear space between cable and sleeve for installing mechanical sleeve seals.

END OF SECTION 16120

RACEWAYS AND BOXES 16130 - 1

SECTION 16130 - RACEWAYS AND BOXES

PART 1 - GENERAL

1.1 SUMMARY

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

1.2 DEFINITIONS

A. EMT: Electrical metallic tubing.

B. ENT: Electrical nonmetallic tubing.

C. FMC: Flexible metal conduit including Type AC and MC Cable.

D. IMC: Intermediate metal conduit.

E. LFMC: Liquidtight flexible metal conduit.

F. LFNC: Liquidtight flexible nonmetallic conduit.

G. RNC: Rigid nonmetallic conduit.

1.3 SUBMITTALS: Product Data for surface raceways, wireways and fittings, floor boxes, hinged-cover enclosures, and cabinets.

1.4 QUALITY ASSURANCE

A. 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.

B. Comply with NFPA 70.

PART 2 - PRODUCTS

2.1 METAL CONDUIT AND TUBING

A. Rigid Steel Conduit: ANSI C80.1.

B. IMC: ANSI C80.6.

C. PVC-Coated Steel Conduit: PVC-coated rigid steel conduit and IMC.

RACEWAYS AND BOXES 16130 - 2

1. Comply with NEMA RN 1.

2. Coating Thickness: 0.040 inch (1 mm), minimum.

D. EMT: ANSI C80.3.

E. FMC: Zinc-coated steel. Type AC and MC cables shall comply with the insulation and conductor type requirements specified in specification 16120 “Conductors and Cables”.

F. LFMC: Flexible steel conduit with PVC jacket.

G. Fittings for Conduit (Including all Types and Flexible and Liquidtight), EMT, and Cable:

NEMA FB 1; listed for type and size raceway with which used, and for application and environment in which installed.

1. Conduit Fittings for Hazardous (Classified) Locations: Comply with UL 886.

2. Fittings for EMT: Steel or die-cast, compression type.

3. Coating for Fittings for PVC-Coated Conduit: Minimum thickness, 0.040 inch (1 mm),…