SOW_with_Specifications,_Replace_Transformer_P167.pdf

STATEMENT OF WORK

Replace Transformer P167

PROJECT NO.: HAYW192108

10 MAY 2019

144TH FIGHTER WING

CALIFORNIA AIR NATIONAL GUARD, FRESNO

TECHNICAL PROVISIONS

TABLE OF CONTENTS:

DESCRIPTION OF SERVICES

SITE OF WORK

STATEMENT OF WORK

CONTRACTOR LICENSE REQUIREMENTS

PROJECT SPECIFIC REQUIREMENTS

GENERAL REQUIREMENTS

TECHNICAL SPECIFICATIONS

CLOSEOUT DOCUMENTATION

DESCRIPTION OF SERVICES

This statement of work describes contractor requirements for the project titled “Replace Transformer P167”. All work will occur at the Fresno Air National Guard Station, Fresno, California. The contractor is responsible to furnish and install all labor and materials to complete the items listed in this Statement of Work. The contractor shall provide the government a complete and usable product that will be inspected/accepted by the government at the completion of the project. All information included in this document, along with the instructions and standards referenced in the document, shall be considered as part of the Statement of Work.

SITE OF WORK

All work will occur at:

Fresno Air National Guard Station 5323 McKinley Ave, Fresno, CA. 93727

STATEMENT OF WORK

1. Objectives: The purpose of this project is to remove and replace a three phase 150KVA mineral oil electrical transformer. The transformer is located adjacent to Bld 167 known as the Hush House. Listed voltage of the transformer is 12470V step down to 208Y/120V. The transformer concrete pad is in a lower elevation than the surrounding ground and accumulates rainfall runoff which has corroded the transformer base. This project is also to regrade the immediate area around the transformer so the existing pad is at a higher elevation so that a NEW transformer can be placed on. The end result should be a complete and usable commissioned electrical transformer performing as efficient or better than the replaced one. The NEW transformer will be sitting on a PCC pad elevated at a minimum of 2% (1/50) grade going away from the pad.

2. Items of Work include, but are not limited to:

2.1. Remove existing Transformer

2.2. Regrade surrounding soil

2.3. Install NEW transformer

2.4. Test and commission

3. Demolition Materials

3.1. Contractor shall remove all materials completely off 144th FW property. Contractor to provide weight tickets of either recycle or disposal to COR.

4. Finishing

4.1. Soil shall be neat and uniform sloping away from the PCC equipment pad. Deep machine ruts shall be healed, soil on adjacent concrete shall be swept clean, and equipment pad shall be clean of soil. Transformer shall be painted to prevent corrosion. All new electrical connections shall be tight and serviceable.

CONTRACTOR LICENSE REQUIREMENTS

1. The contractor shall possess a current and valid California “Class B” Contractors license and be able to provide proof of competence.

2. All listed sub-contractors working for the contractor shall possess all applicable California Contractors licenses. Refer to the Project Specific Requirements section for additional requirements

PROJECT SPECIFIC REQUIREMENTS

1. All subcontractors shall possess applicable California Contractors licenses. For this project a contractor that holds a C-10 Electrical License is most appropriate. A submittal to the COR for suitable subcontractor license review and approval needs to be made prior to workforce vetting.

2. The project shall be completed no later than 30 calendar days post Notice to Proceed (NTP). The contractor and government will negotiate the final phasing and schedule (as applicable) during a review of the project at the pre-construction conference.

3. All materials shall be compliant with the Buy American Act and FAR Clause 52.225-9. The following lists out minimum quality standard examples of materials required for this project. Contractor may request substitutes for approval during the pre-construction conference. All substitution requests shall be made in writing on the AF Form 3000 and shall document all salient characteristic differences between the specified material and the requested substitution. Requests for material substitutions made after the pre-construction conference may not be granted by the Government.

a. Mineral Oil Bath Transformer 150KVA (ASTM F 2656-07, UFGS 34 71 13.19)

GENERAL REQUIREMENTS

1 At ANG discretion and determination, the Contractor shall attend a Pre-Construction Conference (IAW FAR 52.236-26, Preconstruction Conference). The Pre-Construction Conference will generally be scheduled after award but prior to the NTP. At a minimum, the contractor shall have their project manager and site superintendent attend the meeting. The Contractor shall provide the following documents prior to or at the Pre- Construction Conference

a. Project Schedule (IAW FAR 52.236-15, Schedules for Construction Contracts)

b. Contract Schedule of Values (IAW FAR 52.232-5, Payments under Fixed-Price Construction Contracts)

c. Safety Plan (IAW FAR 52.236-13 Accident Prevention)

d. Quality Control Plan (IAW FAR 52.246-12 Inspection of Construction)

e. Material Submittals (IAW FAR 52.236-21 Specifications and Drawings for Construction)

f. Safety Data Sheets (IAW FAR 52.236-13 Accident Prevention)

2 Government Furnished Property and Services. The government will provide water, sewer and electrical utility services and shall review and approve of all contractor designed and proposed connections to those services prior to connection. Unsecure outdoor storage area at the base is available and must be requested through the project manager prior to storage of materials. Secured or environmentally controlled storage is the responsibility of the contractor.

3 Quality Control. Contractor shall develop and maintain a quality program that ensures work is performed as described in this Statement of Work and in accordance with all applicable local, state and federal codes and standards of the industry.

4 Quality Assurance. The Government will maintain a Quality Assurance inspection Program for the sole benefit of the government to assure the contractor’s quality control program is working as described in this Statement of Work to ensure contract compliance and project quality in accordance with all local, state, and federal codes and standards of the industry. The Government Construction Inspector is the government’s day-to-day Quality Assurance Evaluator.

5 Hours of Operation. The hours of work shall typically fall between 7:00 a.m. and 5:00 p.m. Monday through Friday, 144th Fighter Wing works a 9/9/8/80 work shift. This work shift effectively provides the base populous every other Monday off. This work shift shall be honored by the contractor except as follows: Unless otherwise requested and approved, work shall not be performed on Weekends, State and Federal Holidays, or on base regular days off which occur on one Monday every two weeks.

6 Base Access. All personnel entering the installation must be cleared for access or escorted. The contractor shall provide first name, last name, driver’s license number and applicable vehicle data for all personnel requesting access to the base. The contractor shall submit this information to the base Contracting Office NLT two working days prior to the date of required access. Business and personal vehicle drivers must maintain a valid driver’s license, vehicle registration and proof of insurance at all time while on the base.

7 Technical Competence and Ability. Upon request by the Government, the Contractor shall provide proof of technical competence and experience in the professional and technical fields of construction required by this Statement of Work. The contractor shall be prepared to submit documents providing proof of successful competence such as training certificates or accreditations from recognized industry leaders. Contractors shall also be prepared to provide proof of successful project experience through references of former clients in related project types.

8 Dimensions and Quantity. All dimensions and quantities provided in the Statement of Work are estimates only. They are provided as a courtesy for contractors to identify the magnitude of work or materials necessary to complete the project. They are not intended to be final measurements or to support material take-offs or materials ordering. The Contractor is responsible for verifying all dimensions and quantities in the field prior to starting work.

9 Submittals. All submittals shall be transmitted with an AF Form 3000. When submitting on aesthetic finishes, textures, colors or other material characteristics, the Contractor shall, upon request, provide a sample of the material for review and approval along with the product cut-sheet.

10 Warranty. The contractor shall guarantee all workmanship and materials covered under this statement of work for a period of no less than one (1) year from the date of project acceptance. This contractor’s warranty shall be included with any manufacturer’s warranties that accompany materials or systems installed as part of this statement of work.

TECHNICAL SPECIFICATIONS

UFGS and UFC federal documents have been provided for this specific project. The specifications in the UFGS shall be used and not be deviated from. If there is a manufacturer’s specification that is contradicting the UFGS then the COR must be alerted.

CLOSEOUT DOCUMENTATION

• 10% Retainage will be released upon receipt of the following items:

Contractor workmanship letter of warranty up to one year.

Certificates of no debts to subcontractors, suppliers and vendors.

Electronic pictures showing the area before and after construction.

Recycling or Landfill proof of disposition document.

All applicable O&M manuals As-Built Drawings

"Contractor Manpower Reporting” The Contractor shall report all contractor labor hours (including subcontractor labor hours) required for performance of services provided under this contract for the Air Force collection site. The Contractor is required to completely fill in all required data fields using the following web address: http://www.ecmra.mil/.

Reporting inputs will be for the labor executed during the period of performance during each Government fiscal year (FY), which runs October 1 through September 30. While inputs may be reported any time during the FY, all data should be reported no later than October 31 of each calendar year. Contractors may direct questions to the help desk at http://www.ecmra.mil/.

Unit Identification Code (UIC) for the Requiring Activity: FFTQR0 Issuing Office DoDAAC:

W912LA"

TECHNICAL SPECIFICATIONS

UFGS and UFC federal documents have been provided for this specific project. The specifications in the UFGS shall be used and not be deviated from. If there is a manufacturer’s specification that is contradicting the UFGS then the COR must be alerted.

USACE / NAVFAC / AFCEC / NASA UFGS-26 12 19.00 40 (November 2014) Change 1 - 08/17 Preparing Activity: NASA Superseding UFGS-26 12 19.00 40 (February 2011)

UNIFIED FACILITIES GUIDE SPECIFICATIONS

References are in agreement with UMRL dated April 2019

SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

SECTION 26 12 19.00 40

PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE TRANSFORMERS

11/14

PART 1 GENERAL

1.1 REFERENCES

1.2 DEFINITIONS

1.3 SUBMITTALS

1.4 QUALITY CONTROL

1.4.1 Pad-Mounted Transformer Drawings

1.4.2 Regulatory Requirements

1.4.3 Standard Products

1.4.3.1 Alternative Qualifications

1.4.3.2 Material and Equipment Manufacturing Date

1.4.4 Predictive Testing And Inspection Technology Requirements

1.5 MAINTENANCE MATERIAL SUBMITTALS

1.5.1 Additions to Operation and Maintenance Data

1.6 WARRANTY

PART 2 PRODUCTS

2.1 MANUFACTURED UNITS

2.1.1 Three-Phase Pad-Mounted Transformers

2.1.1.1 Compartment Construction

2.1.1.2 High Voltage, Dead-Front

2.1.1.3 High Voltage, Live-Front

2.1.1.4 Low Voltage

2.1.1.5 Three-Phase Metering

2.1.1.6 Transformer

2.1.1.7 Specified Transformer Losses

2.1.1.8 Insulating Liquid

2.1.1.9 Liquid-Filled Transformer Nameplates

2.1.1.10 Corrosion Protection

2.2 ACCESSORIES

2.2.1 Warning Signs

2.2.2 Grounding and Bonding

2.2.3 Padlocks

2.2.4 Cast-In-Place Concrete

SECTION 26 12 19.00 40 Page 1

2.3 TESTS, INSPECTIONS, AND VERIFICATIONS

2.3.1 Transformer Test Schedule

2.3.2 Design Tests

2.3.3 Routine and Other Tests

PART 3 EXECUTION

3.1 PREPARATION

3.1.1 Foundation for Equipment and Assemblies

3.1.1.1 Cast-In-Place Concrete

3.1.1.2 Sealing

3.2 INSTALLATION

3.2.1 Grounding

3.2.1.1 Grounding Electrodes

3.2.1.2 Pad-Mounted Transformer Grounding

3.2.1.3 Connections

3.2.1.4 Grounding and Bonding Equipment

3.2.2 Transformer Grounding

3.2.3 Installation Of Equipment And Assemblies

3.2.3.1 Meters and Current Transformers

3.2.4 Field Applied Painting

3.2.5 Warning Sign Mounting

3.3 FIELD QUALITY CONTROL

3.3.1 Predictive & Acceptance Testing

3.3.2 Performance of Acceptance Checks and Tests

3.3.2.1 Pad-Mounted Transformers

3.3.2.2 Current Transformers

3.3.2.3 Watthour Meter

3.3.2.4 Grounding System

3.3.3 Follow-Up Verification

-- End of Section Table of Contents -- SECTION 26 12 19.00 40 Page 2 USACE / NAVFAC / AFCEC / NASA UFGS-26 12 19.00 40 (November 2014) Change 1 - 08/17 Preparing Activity: NASA Superseding UFGS-26 12 19.00 40 (February 2011)

UNIFIED FACILITIES GUIDE SPECIFICATIONS

References are in agreement with UMRL dated April 2019

SECTION 26 12 19.00 40

PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE TRANSFORMERS

11/14 NOTE: This guide specification covers the requirements for three-phase pad-mounted transformers of the dead-front and live-front types for exterior applications.

Use pad-mounted transformers (properly protected with bayonet type, oil-immersed, expulsion fuses in series with oil-immersed, partial-range, current-limiting fuses) for kVA ratings up to and including 750 kVA on 5 kV systems and for kVA ratings up to and including 1500 kVA on 15 and 25 kV systems.

For voltages above 25 kV and in ratings above those previously indicated, this specification requires significant modifications and additional specification sections may need to be added on the project.

The use of pad-mounted transformers with secondary currents exceeding 2000 amperes is discouraged due to the size and quantity of secondary conductors.

Therefore, transformers above 750 kVA serving 208Y/120 volt loads and transformers above 1500 kVA serving 480Y/277 volt loads should be in a secondary unit substation configuration.

Contact the cognizant EFD or PWC for direction.

For SOUTHNAVFACENGCOM projects, determine the use of secondary unit substations on a case by case basis.

Use the following related guide specifications for power distribution equipment:

Section 26 08 00 APPARATUS INSPECTION AND TESTING Section 26 12 21 SINGLE-PHASE PAD-MOUNTED

TRANSFORMERS

SECTION 26 12 19.00 40 Page 3 Section 33 71 01 OVERHEAD TRANSMISSION AND

DISTRIBUTION

Section 26 11 14.00 10 MAIN ELECTRIC SUPPLY STATION

AND SUBSTATION

Section 26 11 13.00 20 PRIMARY UNIT SUBSTATION Section 26 11 16 SECONDARY UNIT SUBSTATIONS Section 26 28 00.00 10 MOTOR CONTROL CENTERS, SWITCHBOARDS AND PANELBOARDS

Section 26 22 00.00 10 480-VOLT STATION SERVICE

SWITCHGEAR AND TRANSFORMERS

Section 26 23 00 SWITCHBOARDS AND SWITCHGEAR Adhere to UFC 1-300-02 Unified Facilities Guide Specifications (UFGS) Format Standard when editing this guide specification or preparing new project specification sections. Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable item(s) or insert appropriate information.

Remove information and requirements not required in respective project, whether or not brackets are present.

Comments, suggestions and recommended changes for this guide specification are welcome and should be submitted as a Criteria Change Request (CCR).

NOTE: TO DOWNLOAD UFGS GRAPHICS

Go to http://www.wbdg.org/ffc/dod/unified-facilities-guide-specifications-ufgs/forms-Do not include list of tables, or tables themselves, in project specifications. Use tables to obtain values required in Part 2 of the specification.

For SOUTHNAVFACENGCOM facilities use Table PM-2.

TABLE NUMBER TITLE

PM-1 Transformer Loss & Impedance Data - for Energy Cost (EC) Less Than or Equal to $0.04 (2 pages) PM-2 Transformer Loss & Impedance Data - for Energy Cost (EC) Greater Than $0.04 and Less Than or Equal to $0.08 (2 pages) SECTION 26 12 19.00 40 Page 4

TABLE NUMBER TITLE

PM-3 Transformer Loss & Impedance Data - for Energy Cost (EC) Greater Than $0.08 and Less Than or Equal to $0.12 (2 pages)

EC-1 Energy costs at LANTNAVFACENGCOM Activities (2 pages) NOTE: Show the following information on the project drawings:

1. Single-line diagram showing pad-mounted transformer connectors, inserts, surge arresters, switches, fuses, current transformers with ratings, and meters as applicable.

2. Grounding plan.

3. Type and number of cables, and size of conductors for each power circuit.

4. Transformer primary and secondary voltages.

(Use IEEE C57.12.00, Table 11(b), "Designation of voltage ratings of three-phase windings".) State the primary voltage (nominal) actually in service and not the voltage class.

5. Special conditions, such as altitude, temperature and humidity; exposure to fumes, vapors, dust, and gases; and seismic requirements.

Section 26 08 00 APPARATUS INSPECTION AND TESTING applies to this section, with the additions and modifications specified herein.

1.1 REFERENCES

NOTE: This paragraph is used to list the publications cited in the text of the guide specification. The publications are referred to in the text by basic designation only and listed in this paragraph by organization, designation, date, and title.

Use the Reference Wizard's Check Reference feature when you add a Reference Identifier (RID) outside of SECTION 26 12 19.00 40 Page 5 the Section's Reference Article to automatically place the reference in the Reference Article. Also use the Reference Wizard's Check Reference feature to update the issue dates.

References not used in the text will automatically be deleted from this section of the project specification when you choose to reconcile references in the publish print process.

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

AMERICAN CONCRETE INSTITUTE (ACI)

ACI 318M (2014; ERTA 2015) Building Code Requirements for Structural Concrete & Commentary

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI C12.1 ((2014; Errata 2016) Electric Meters - Code for Electricity Metering

ASTM INTERNATIONAL (ASTM)

ASTM A240/A240M (2018) Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications ASTM C260/C260M (2010a; R 2016) Standard Specification for Air-Entraining Admixtures for Concrete ASTM D117 (2018) Standard Guide for Sampling, Test Methods, and Specifications for Electrical Insulating Liquids ASTM D1535 (2014; R 2018) Standard Practice for Specifying Color by the Munsell System ASTM D3487 (2016; E2017) Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus ASTM D877/D877M (2013) Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes ASTM D92 (2012a) Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester ASTM D97 (2017b) Standard Test Method for Pour Point of Petroleum Products SECTION 26 12 19.00 40 Page 6

FM GLOBAL (FM)

FM APP GUIDE (updated on-line) Approval Guide http://www.approvalguide.com/

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 386 (2016) Separable Insulated Connector Systems for Power Distribution Systems Rated 2.5 kV through 35 kV IEEE C2 (2017; Errata 1-2 2017; INT 1 2017) National Electrical Safety Code IEEE C37.47 (2011) Standard for High Voltage Distribution Class Current-Limiting Type Fuses and Fuse Disconnecting Switches IEEE C57.12.00 (2015) General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers IEEE C57.12.25 (1990) Standard for Transformers - Pad-Mounted, Compartmental-Type, Self-Cooled, Single-Phase Distribution Transformers With Separable Insulated High-Voltage Connectors; High Voltage, 34,500 Grdy/ 19,920 Volts and Below; Low Voltage, 240/120 Volts; 167 kVa and Smaller Requirements IEEE C57.12.28 (2014) Standard for Pad-Mounted Equipment

- Enclosure Integrity IEEE C57.12.34 (2015) Standard Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers, 10 MVA and Smaller; High Voltage, 34.5 kV Nominal System Voltage and Below; Low Voltage, 15 kV Nominal System Voltage and Below IEEE C57.12.80 (2010) Standard Terminology for Power and Distribution Transformers IEEE C57.12.90 (2015; Corr 2017) Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers

IEEE C57.13 (2016) Requirements for Instrument Transformers IEEE C57.98 (2011) Guide for Transformer Impulse Tests IEEE C62.11 (2012) Standard for Metal-Oxide Surge Arresters for Alternating Current Power Circuits (>1kV) IEEE Stds Dictionary (2009) IEEE Standards Dictionary: Glossary SECTION 26 12 19.00 40 Page 7 of Terms & Definitions

INTERNATIONAL ELECTRICAL TESTING ASSOCIATION (NETA)

NETA ATS (2017; Errata 2017) Standard for Acceptance Testing Specifications for Electrical Power Equipment and Systems

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (NASA)

RCBEA GUIDE (2004) NASA Reliability Centered Building and Equipment Acceptance Guide

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

ANSI C12.7 (2014) Requirements for Watthour Meter Sockets NEMA LI 1 (1998; R 2011) Industrial Laminating Thermosetting Products NEMA/ANSI C12.10 (2011) Physical Aspects of Watthour Meters

- Safety Standards

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2017; ERTA 1-2 2017; TIA 17-1; TIA 17-2;

TIA 17-3; TIA 17-4; TIA 17-5; TIA 17-6;

TIA 17-7; TIA 17-8; TIA 17-9; TIA 17-10;

TIA 17-11; TIA 17-12; TIA 17-13; TIA

17-14; TIA 17-15; TIA 17-16; TIA 17-17 )

National Electrical Code

ORGANISATION FOR ECONOMIC CO-OPERATION AND DEVELOPMENT (OECD)

OECD Test 203 (1992) Fish Acute Toxicity Test

U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)

EPA 600/4-90/027F (1993) Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms EPA 712-C-98-075 (1998) Fate, Transport and Transformation Test Guidelines - OPPTS 835.3100- "Aerobic Aquatic Biodegradation"

UNDERWRITERS LABORATORIES (UL)

UL 467 (2013; Reprint Jun 2017) UL Standard for Safety Grounding and Bonding Equipment

1.2 DEFINITIONS

Unless otherwise specified or indicated, electrical and electronics terms used in these specifications, and on the drawings, are as defined in IEEE Stds Dictionary.

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only or as otherwise designated. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submittals with an "S" are for inclusion in the Sustainability eNotebook, in conformance to Section 01 33 29 SUSTAINABILITY REPORTING.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

NOTE: Include the bracketed option on "CIEE and 074 review" for NAVFAC Atlantic and SOUTHNAVFACENGCOM projects respectively. For other projects, submittal review is performed by the designer of record. If submittal review by NAVFAC Atlantic or SOUTHNAVFACENGCOM is specifically desired

1.4 QUALITY CONTROL

1.4.1 Pad-Mounted Transformer Drawings

Submit pad-mounted transformer drawings. Indicate on drawings, but not limit to the following:

a. An outline drawing, with front, top, and side views.

b. ANSI nameplate data.

NOTE: Navy policy requires that all facilities be metered. If exception is taken, coordinate with paragraphs ADDITIONS TO OPERATION AND MAINTENANCE DATA and THREE PHASE METERING.

c. Elementary diagrams and wiring diagrams with terminals identified of watthour meter and current transformers.

d. One-line diagram, including switch(es), current transformers, meters, and fuses.

1.4.2 Regulatory Requirements

In each of the publications referred to herein, consider the advisory provisions to be mandatory, as though the word, "shall" had been substituted for "should" wherever it appears. Interpret references in these publications to the "authority having jurisdiction," or words of similar meaning, to mean the Contracting Officer. Ensure equipment, materials, installation, and workmanship are in accordance with the mandatory and advisory provisions of NFPA 70 unless more stringent requirements are specified or indicated.

1.4.3 Standard Products

Provide materials and equipment that are products of manufacturers regularly engaged in the production of such products which are of equal material, design and workmanship. Provide products that have been in satisfactory commercial or industrial use for 2 years prior to bid opening. The 2-year period includes applications of equipment and materials under similar circumstances and of similar size. Provide products that have been on sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 2-year period. Where two or more items of the same class of equipment are required, use items of a single manufacturer; however, the component parts of the item need not be the products of the same manufacturer unless stated in this section.

1.5 MAINTENANCE MATERIAL SUBMITTALS

1.5.1 Additions to Operation and Maintenance Data

In addition to requirements of Data Package 5, include the following on the actual transformer(s) provided:

a. An instruction manual with pertinent items and information highlighted

b. An outline drawing, front, top, and side views

d. Routine and field acceptance test reports

f. Information on watthour demand meter, CT's, and fuse block

g. Actual nameplate diagram

h. Date of purchase

1.6 WARRANTY

Provide [_3_] copies of the warranty to the Contracting Officer. Ensure the equipment items are supported by service organizations which are reasonably convenient to the equipment installation in order to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of the contract.

PART 2 PRODUCTS

2.1 MANUFACTURED UNITS

Products and materials not considered to be pad-mounted transformers and related accessories are specified in[ Section 33 71 01 OVERHEAD TRANSMISSION AND DISTRIBUTION,][ Section 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION,][ and][ Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM].

2.1.1 Three-Phase Pad-Mounted Transformers

NOTE: Use dead-front transformers unless available system fault current exceeds equipment ratings. If live-front transformers are required, approve their use by the cognizant EFD.

IEEE C57.12.34, IEEE C57.12.28 and as specified herein.

][2.1.1.3 High Voltage, Live-Front

Provide a high-voltage compartment containing the incoming line, transformer high-voltage bushings, load-break switch handle(s), access to [oil-immersed fuses][dry-well fuse canisters],[ surge arresters,] tap changer handle, insulated phase barriers, and ground pad.

a. Cable terminators: Provide as specified in Section 33 71 02

UNDERGROUND ELECTRICAL DISTRIBUTION.

b. Load-break switch NOTE: Choose one of the following options.

[ (1) Radial-feed oil-immersed type rated at [15][_12_] kV,with a continuous current rating and load-break rating of [200][_150KV_] amperes, and a make-and-latch rating of 10,000 rms amperes symmetrical. Locate the switch handle in the high-voltage compartment.

NOTE: Installation of circuit breakers in the secondary compartment is not recognized by ANSI standards, and limits accessibility by covering lugs, gages, and accessories. Do not use.

Provide low-voltage compartment containing low-voltage bushings with NEMA spade terminals, accessories,[ metering,] stainless steel or laser-etched anodized aluminum diagrammatic transformer nameplate, and ground pad.

a. Accessories include drain valve with sampler device, fill plug, pressure relief device, liquid level gage, pressure-vacuum gage, and dial type thermometer with maximum temperature indicator.

2.1.1.5 Three-Phase Metering

NOTE: When Section Section 23 09 00 INSTRUMENTATION AND CONTROL FOR HVAC is used, coordinate meter requirements. Form 9S, in text below, is for three-phase, four-wire wye systems, for other system configurations, the designer determines the appropriate form designation.

a. Design: Provide meter designed for use on a 3-phase, 4-wire, [208Y/120] volt system with 3 current transformers. Include necessary KYZ pulse initiation hardware for Energy Monitoring and Control System (EMCS)[ as specified in Section 23 09 00 INSTRUMENTATION

f. Demand Register:

(1) Provide solid state

(2) Meter reading multiplier:

(a) Indicate multiplier on the meter face.

(b) Demand interval length: program for [15][30][60] minutes with rolling demand up to six subintervals per interval.

g. Meter fusing: Provide a fuse block mounted in the secondary compartment containing one fuse per phase to protect the voltage input to the watthour meter. Size fuses as recommended by the meter manufacturer.

h. Socket: ANSI C12.7. Provide NEMA Type 3R, box-mounted socket having automatic circuit-closing bypass and having jaws compatible with requirements of the meter. Cover unused hub openings with blank hub plates. Paint box Munsell 7GY3.29/1.5 green to match the pad-mounted transformer to which the box-mounted socket is attached. The Munsell color notation is specified in ASTM D1535.

i. Current transformers: IEEE C57.13. Provide butyl-molded window type current transformers with 600-volt insulation, 10 kV BIL and mount on the low-voltage bushings. Route current transformer leads in a location as remote as possible from the power transformer secondary cables to permit current measurements to be taken with hook-on-ammeters. Provide three current transformers per power transformer with characteristics listed in the following table.

[ (1) NEMA/ANSI C12.10. Metering for two-compartment transformers:

Provide a socket-mounted electronic programmable outdoor watthour meter, surface mounted flush against the side of the low-voltage compartment as indicated. Meter is either programmed at the factory or programmed in the field. When field programming is performed, turn field programming device over to the Contracting Officer at completion of project. Coordinate meter to system requirements.

NOTE: The following guidelines for specifying current transformers are based on the standard current transformer primary rating which is just below the full load current of the power transformer.

1. Select the appropriate current transformer (CT) ratio, continuous-thermal-current rating factor (RF) at 30 degrees C and ANSI Metering Accuracy Class values based on transformer kVA size and secondary voltage. Example: for a 500 kVA transformer at 208 volts - select 1200/5, 1.5, 0.3 - B-0.5.

SECTION 26 12 19.00 40 Page 21

|---------------------------(VOLTS)---------------------------|

| 208 | 240 | | CT | | Meter | CT | | Meter | kVA | Ratio | RF | Class | Ratio | RF | Class |

| 75 | 200/5, 4.0, 0.3 thru B-0.1 | 200/5, 4.0, 0.3 thru B-0.1 | |112.5 | 300/5, 3.0, 0.3 thru B-0.2 | 200/5, 4.0, 0.3 thru B-0.1 | | 150 | 400/5, 4.0, 0.3 thru B-0.2 | 300/5, 3.0, 0.3 thru B-0.2 | | 225 | 600/5, 3.0, 0.3 thru B-0.5 | 400/5, 4.0, 0.3 thru B-0.2 | | 300 | 800/5, 2.0, 0.3 thru B-0.5 | 600/5, 3.0, 0.3 thru B-0.5 | | 500 | 1200/5, 1.5, 0.3 thru B-0.5 | 1200/5, 1.5, 0.3 thru B-0.5 | | 750 | 2000/5, 1.5, 0.3 thru B-1.8 | 1500/5, 1.5, 0.3 thru B-0.9 |

|---------------------------(VOLTS)--------------------------|

| 480 | 600 | | CT | | Meter | CT | | Meter | kVA | Ratio | RF | Class | Ratio | RF | Class | | 75 | 200/5, 4.0, 0.3 thru B-0.1 | 200/5, 4.0, 0.3 thru B-0.1 | |112.5 | 200/5, 4.0, 0.3 thru B-0.1 | 200/5, 4.0, 0.3 thru B-0.1 | | 150 | 200/5, 4.0, 0.3 thru B-0.1 | 200/5, 4.0, 0.3 thru B-0.1 | | 225 | 200/5, 4.0, 0.3 thru B-0.1 | 200/5, 4.0, 0.3 thru B-0.1 | | 300 | 300/5, 3.0, 0.3 thru B-0.2 | 200/5, 4.0, 0.3 thru B-0.1 | | 500 | 600/5, 3.0, 0.3 thru B-0.5 | 400/5, 4.0, 0.3 thru B-0.2 | | 750 | 800/5, 2.0, 0.3 thru B-0.5 | 600/5, 3.0, 0.3 thru B-0.5 | | 1000 | 1200/5, 1.5, 0.3 thru B-0.5 | 800/5, 2.0, 0.3 thru B-0.5 | | 1500 | 1500/5, 1.5, 0.3 thru B-0.9 | 1200/5, 1.5, 0.3 thru B-0.5 | | 2000 | 2000/5, 1.5, 0.3 thru B-1.8 | 1500/5, 1.5, 0.3 thru B-0.9 | | 2500 | 3000/5, 1.33, 0.3 thru B-1.8 | 2000/5, 1.5, 0.3 thru B-1.8 |

2. Incorporate the appropriate values in table below.

2.1.1.6 Transformer

NOTE: Use the following guidelines for specifying transformers.

1. Previously the use of mineral oil filled transformers were recommended wherever possible.

The recent availability of biodegradable less-flammable transformer liquids may have altered that recommendation. For NAVFAC Atlantic , choose less-flammable transformer liquids as specified below for all projects unless there is a specific requirement to do otherwise. Where adequate distance from structures cannot be attained, consult NAVFAC design manuals and UFC 3-600-01, "Design:

Fire Protection Engineering For Facilities." Do not use Silicon-filled and R-temp filled transformers for less-flammable requirements.

SECTION 26 12 19.00 40 Page 22

2. Use IEEE C57.12.00, Table 11(b), voltage designations, such as "4160 V - 480Y / 277 V".

3. Select impedance value in accordance with technical note under paragraph SPECIFIED TRANSFORMER

LOSSES.

4. Delete inapplicable sound levels.

5. Delete last sentence if transformer secondary winding is delta type.

a. [Oil-insulated][Less-flammable liquid-insulated], two winding, 60 hertz, 65 degrees C rise above a 30 degrees C average ambient, self-cooled type.

b. Transformer is rated [_____] kVA, [95][60][_____] kV BIL.

c. Transformer voltage ratings: [_____] V - [_____] V.[ For GrdY - GrdY transformers, provide transformer with five-legged core design for third harmonic suppression.]

d. Ensure tap changer is an externally operated, manual type for changing tap setting when the transformer is de-energized. Provide four 2.5 percent full capacity taps, two above and two below rated primary voltage. Ensure tap changers clearly indicate which tap setting is in use.

e. Minimum tested impedance cannot be less than [_____] percent at 85 degrees C on Three-Phase transformers [and [_____] at 85 degrees C on Single-Phase transformers].

f. Ensure audible sound levels comply with the following:

kVA DECIBELS (MAX) 75 51

112.5 55 150 55 225 55 300 55 500 56 750 57 1000 58 1500 60

g. Include lifting lugs for the transformer and provisions for jacking under base. Ensure the transformer base construction is suitable for using rollers or skidding in any direction. Provide transformer top with an access handhole.[ Conspicuously display its kVA rating on its enclosure.] Ensure the transformer has an insulated low-voltage neutral bushing with NEMA spade terminal, and with removable ground strap.

[2.1.1.7 Specified Transformer Losses SECTION 26 12 19.00 40 Page 23 NOTE: Steps to specifying transformer losses.

1. Print Tables PM-1, PM-2, PM-3, and EC-1 as applicable (directions included at the front of this specification).

2. Obtain energy cost for the specific activity from the cognizant EFD or PWC. Energy costs should be based on the cost of energy without the demand charge factors scaled in. Use Table EC-1 for energy costs at the NAVFAC Atlantic activities indicated.

Use Table PM-2 for energy costs at all SOUTHNAVFACENGCOM activities. (Additional tables will be added for other EFD's as the information becomes available.)

3. Use Tables PM-1, PM-2, and PM-3 to specify losses and impedances for transformers based on energy cost range, and transformer primary and secondary voltages.

4. Perform fault current calculations to verify that distribution equipment is coordinated with impedance specified.

No-load losses (NLL) are [_____] watts at 20 degrees C and load losses (LL) are [_____] watts at 85 degrees C. Use the values for the specified losses for comparison with the losses determined during the routine tests. If the routine test values for no-load losses exceed the specified no-load losses by more than 10 percent, or the total losses exceed the specified total losses (sum of no-load and load losses) by more than 6 percent, the transformer is unacceptable.

Submit certification from the manufacturer indicating conformance with requirements.

]2.1.1.8 Insulating Liquid NOTE: Choose one of the following options. For NAVFAC Atlantic , choose less-flammable transformer liquids for all projects unless there is a specific requirement to do otherwise.

[ a. Mineral oil: ASTM D3487, Type II, tested in accordance with ASTM D117.

Provide identification of transformer as "non-PCB" and "Type II mineral oil" on the nameplate.

]2.1.1.9 Liquid-Filled Transformer Nameplates Provide distribution transformers with nameplate information in accordance with IEEE C57.12.00 and as modified or supplemented by this section.

2.1.1.10 Corrosion Protection

NOTE: Use stainless steel bases and cabinets for most applications. In hostile environments, the additional cost of totally stainless steel tanks and metering may be justified. Manufacturer's standard construction material is acceptable only in noncoastal and non-corrosive environments. Choose the second bracketed option for hostile environments.

[Provide corrosion resistant transformer cabinets and bases fabricated of stainless steel conforming to ASTM A240/A240M, Type 304 or 304L. Base includes any part of pad-mounted transformer that is within75 mm 3-inches of concrete pad. Paint bases, cabinets, and tanks Munsell 7GY3.29/1.5 green. Ensure paint coating system complies with IEEE C57.12.28. The Munsell color notation is specified in ASTM D1535.][Fabricate entire transformer assembly, including tank and radiator, base, enclosure, and metering enclosure of stainless steel conforming to ASTM A240/A240M, Type 304 or 304L. Form enclosure of stainless steel sheets. Paint entire transformer assembly Munsell 7GY3.29/1.5 green. Ensure paint coating system complies with IEEE C57.12.28. The Munsell color notation is specified in ASTM D1535.]

2.2 ACCESSORIES

2.2.1 Warning Signs

Provide warning signs for the enclosures of pad-mounted transformers having a nominal rating exceeding 600 volts.

a. When the enclosure integrity of such equipment is specified to be in accordance with IEEE C57.12.28, such as for pad-mounted transformers, provide self-adhesive warning signs on the outside of the high voltage compartment door(s). Provide a decal type sign and have nominal dimensions of 178 by 255 mm 7 by 10-inches with the legend "DANGER HIGH VOLTAGE" printed in two lines of nominal 50 mm 2-inch high letters.

The word "DANGER" is printed in white letters on a red background and the words "HIGH VOLTAGE" is printed in black letters on a white background. Decal is Panduit No. PPSO710D72 or approved equal.

[ b. When such equipment is guarded by a fence, mount signs on the fence.

Provide metal signs having nominal dimensions of 355 by 255 mm 14 by 10-inches with the legend "DANGER HIGH VOLTAGE KEEP OUT" printed in SECTION 26 12 19.00 40 Page 25 three lines of nominal 75 mm 3-inch high white letters on a red and black field.

]2.2.2 Grounding and Bonding Ensure equipment conforms to UL 467. Provide grounding and bonding as specified in Section[ 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION].

[2.2.3 Padlocks NOTE: Designer assures that Section 08 71 00 DOOR HARDWARE is included and is edited to include padlocks.

Do not use this paragraph for NAVFAC Atlantic projects.

Provide padlocks for pad-mounted equipment [and for each fence gate]. Key padlocks [alike] [as directed by the Contracting Officer]. Ensure padlocks comply with Section 08 71 00 DOOR HARDWARE.

]2.2.4 Cast-In-Place Concrete NOTE: Use the first bracketed paragraph when project includes a concrete section in Division 3;

otherwise, the second bracketed paragraph may be used. Coordinate requirements with Section03 30 00 CAST-IN-PLACE CONCRETE, for other projects.

[ Concrete associated with electrical work for other than encasement of underground ducts is 30 MPa 4000 psi minimum 28-day compressive strength unless specified otherwise. Ensure all concrete conforms to the requirements of Section 03 30 00 CAST-IN-PLACE CONCRETE for other projects.

NOTE: If concrete requirements are detailed and no cast-in-place section is to be included in the project specification, refer to Section 03 30 00 CAST-IN-PLACE CONCRETE and select such portions as needed to provide complete requirements in addition to the requirements below.

[ Concrete composed of fine aggregate, coarse aggregate, portland cement, and water so proportioned and mixed as to produce a plastic, workable mixture.

Fine aggregate is of hard, dense, durable, clean, and uncoated sand. The coarse aggregate is well graded from 4.75 mm to 25 mm 3/16 inch to 1-inch.

Ensure the fine and coarse aggregates are free from injurious amounts of dirt, vegetable matter, soft fragments or other deleterious substances.

Use fresh, clean water, free from salts, alkali, organic matter, and other impurities. Concrete associated with electrical work for other than encasement of underground ducts is30 MPa 4000 psi minimum 28-day compressive strength unless specified otherwise. Slump cannot exceed 100 mm 4-inches. Retempering of concrete will not be permitted. Give exposed, unformed concrete surfaces a smooth, wood float finish. Cure concrete for a period of not less than 7 days. Repair concrete made with high early SECTION 26 12 19.00 40 Page 26 strength portland cement by patching honeycombed or otherwise defective areas with cement mortar as directed by the Contracting Officer. Air entrain concrete exposed to weather using an air-entraining admixture conforming to ASTM C260/C260M. Ensure air content is between 4 and 6 percent.

]2.3 TESTS, INSPECTIONS, AND VERIFICATIONS

NOTE: Use "reserves the right to" on all projects, except those for SOUTHNAVFACENGCOM.

2.3.1 Transformer Test Schedule

The Government [reserves the right to][will] witness tests. Provide transformer test schedule for tests to be performed at the manufacturer's test facility. Submit required test schedule and location, and notify the Contracting Officer 30 calendar days before scheduled test date. Notify Contracting Officer 15 calendar days in advance of changes to scheduled date.

a. Test Instrument Calibration

(1) The manufacturer has a calibration program which assures that all applicable test instruments are maintained within rated accuracy.

(2) The accuracy is directly traceable to the National Institute of Standards and Technology.

(3) Instrument calibration frequency schedule does not exceed 12 months for both test floor instruments and leased specialty equipment.

(4) Dated calibration labels are visible on all test equipment.

(5) Calibrating standard is of higher accuracy than that of the instrument tested.

(6) Keep up-to-date records that indicate dates and test results of instruments calibrated or tested. For instruments calibrated by the manufacturer on a routine basis, in lieu of third party calibration, include the following:

(a) Maintain up-to-date instrument calibration instructions and procedures for each test instrument.

(b) Identify the third party/laboratory calibrated instrument to verify that calibrating standard is met.

2.3.2 Design Tests

IEEE C57.12.00, and IEEE C57.12.90. Section 5.1.2 in IEEE C57.12.80 states that "design tests are made only on representative apparatus of basically the same design." Submit design test reports (complete with test data, explanations, formulas, and results), in the same submittal package as the catalog data and drawings for[ each of] the specified transformer(s).

SECTION 26 12 19.00 40 Page 27 Perform design tests prior to the award of this contract.

a. Submit test reports certified and signed by a registered professional engineer.

b. Temperature rise: "Basically the same design" for the temperature rise test means a pad-mounted transformer with the same coil construction (such as wire wound primary and sheet wound secondary), the same kVA, the same cooling type (ONAN), the same temperature rise rating, and the same insulating liquid as the transformer specified.

c. Lightning impulse: "Basically the same design" for the lightning impulse dielectric test means a pad-mounted transformer with the same BIL, the same coil construction (such as wire wound primary and sheet wound secondary), and a tap changer, if specified. Design lightning impulse tests includes the primary windings only of that transformer.

(1) IEEE C57.12.90, paragraph 10.3 LIGHTNING IMPULSE TEST PROCEDURES and IEEE C57.98.

(2) State test voltage levels.

(3) Provide photographs of oscilloscope display waveforms or plots of digitized waveforms with test report.

d. Lifting and moving devices: "Basically the same design" requirement for the lifting and moving devices test means a test report confirming that the lifting device being used is capable of handling the weight of the specified transformer in accordance with IEEE C57.12.34.

e. Pressure: "Basically the same design" for the pressure test means a pad-mounted transformer with a tank volume within 30 percent of the tank volume of the transformer specified.

f. Short circuit: "Basically the same design" for the short circuit test means a pad-mounted transformer with the same kVA as the transformer specified.

2.3.3 Routine and Other Tests

IEEE C57.12.00. Routine and other tests are performed by the manufacturer on[ each of] the actual transformer(s) prepared for this project to ensure that the design performance is maintained in production. Submit test reports, by serial number and receive approval before delivery of equipment to the project site. Required tests and testing sequence are as follows:

a. Cold resistance measurements (provide reference temperature)

b. Phase relation

c. Ratio

d. No-load losses (NLL) and excitation current

e. Load losses (LL) and impedance voltage

f. Dielectric

(1) Impulse SECTION 26 12 19.00 40 Page 28

(2) Applied voltage

(3) Induced voltage

g. Leak

h. Dissolved gas analysis (DGA)

PART 3 EXECUTION

3.1 PREPARATION

3.1.1 Foundation for Equipment and Assemblies

NOTE: Mounting slab connections may have to be given in detail depending on the requirements for the seismic zone in which the requirement is located. Include construction requirements for concrete slab only if slab is not detailed in drawings. At some activities, curbs or raised edges may also be required around liquid filled transformer.

Mount transformer on concrete slab. Unless otherwise indicated, the slab is at least 200 mm 8-inches thick, reinforced with a 152 mm x 152 mm - MW19 by MW19 (6 by 6 - W2.9 by W2.9) 6 by 6 - W2.9 by W2.9 mesh, placed uniformly 100 mm 4-inches from the top of the slab. Place the slab on a 150 mm 6-inch thick, well-compacted gravel base. Top of concrete slab is approximately 100 mm 4-inches above finished grade with gradual slope for drainage. Edges above grade are 15 mm 1/2-inch chamfer. Ensure slab is of adequate size to project at least 200 mm 8-inches beyond the equipment.

Stub up conduits, with bushings, 50 mm 2-inches into cable wells in the concrete pad. Coordinate dimensions of cable wells with transformer cable training areas.

3.1.1.1 Cast-In-Place Concrete

NOTE: Use the first bracketed option when project includes a concrete section in Division 3;

otherwise, the second bracketed option may be used.

Ensure cast-in-place concrete work conforms to the requirements of Section[

03 30 00 CAST-IN-PLACE CONCRETE][ ACI 318M].

[3.1.1.2 Sealing NOTE: Require sealing of holes (windows) in the concrete pad if rodent intrusion is a problem.

When the installation is complete, seal all conduit and other entries into the equipment enclosure with an approved sealing compound. Ensure seals SECTION 26 12 19.00 40 Page 29 are of sufficient strength and durability to protect all energized live parts of the equipment from rodents, insects, or other foreign matter.

]3.2 INSTALLATION

Ensure electrical installations conform to IEEE C2, NFPA 70, and to the requirements specified herein. Provide new equipment and materials unless indicated or specified otherwise.

3.2.1 Grounding

NOTE: For SOUTHNAVFACENGCOM projects, delete this paragraph and its subparagraphs, and use optional paragraph TRANSFORMER GROUNDING instead.

NOTE: Where rock or other soil conditions prevent obtaining a specified ground value, other methods of grounding should be specified. Where it is impractical to obtain the indicated ground resistance values, make every effort within reason to obtain ground resistance values as near as possible to the indicated values.

Conform grounding to NFPA 70 and IEEE C2, except that grounding systems have a resistance to solid earth ground not exceeding 5 ohms.

3.2.1.2 Pad-Mounted Transformer Grounding

NOTE: Ensure plans show the secondary neutral grounding conductor sized in accordance with NFPA 70 and the primary neutral grounding conductor when required.

Provide separate copper grounding conductors and connect them to the ground loop as indicated. When work in addition to that indicated or specified is required to obtain the specified ground resistance, the provision of the contract covering "Changes" applies.

3.2.1.3 Connections

Make joints in grounding conductors and loops by exothermic weld or compression connector. Install exothermic welds and compression connectors as specified in Section 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION.

SECTION 26 12 19.00 40 Page 30

3.2.1.4 Grounding and Bonding Equipment

Conform equipment to UL 467, except as indicated or specified otherwise.

[3.2.2 Transformer Grounding

NOTE: For SOUTHNAVFACENGCOM projects, use this paragraph in lieu of the previous paragraph

GROUNDING.

Provide a 1/0 bare copper-ground girdle around transformer. Bury girdle 305 mm one-foot deep and placed 915 mm 3-feet laterally from the transformer enclosure. Connect girdle to enclosure at two opposite places using 1/0 copper. Exothermically weld joints.

]3.2.3 Installation Of Equipment And Assemblies Install and connect pad-mounted transformers furnished under this section as indicated on project…