Amendment_0004.pdf

W68SBV60677649

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

CONSTRUCTION PROJECT: McNary Turbine Storage Building

The purpose of this amendment is to incorporate the changes outlined in the Summary of Changes.

The bid opening date has been extended until 20 September 2016 at 2:00 pm local time.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 5

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 13-Sep-2016

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912EF-16-B-0010

X 9B. DATED (SEE ITEM 11)

10-Aug-2016

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer X is extended, is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

13-Sep-2016

CODE

USAED, WALLA WALLA - CONTRACTING DIV.

HILLARY A. MORGAN

201 N. THIRD AVENUE

WALLA WALLA WA 99362

W912EF 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912EF-16-B-0010

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

AMENDMENT 0004

Summary of changes for Amend - 0004 McNary Turbine Storage Building

CONTRACT

1. Section 0700 – CONTRACT CLAUSES

a. Revised Clause 252.236-7001 “CONTRACT DRAWINGS, MAPS, AND SPECIFICATIONS” – See highlights for location of revisions

SPECIFICATIONS

1. Section 33 70 02.00 27 “ELECTRICAL DISTRIBUTION SYSTEM, UNDERGROUND”

a. Revised paragraph 3.6.6 “Duct Line Markers” - See red line for location of revised wording

DRAWINGS

1. Revised drawing T-002 – See brackets for location of revisions

2. Revised drawing E-601 – See brackets for location of revisions

3 Revised drawing C-103 – See brackets for location of revisions

4 Revised drawing C-104 – See brackets for location of revisions

5 Revised drawing C-503 – See brackets for location of revisions

6 Revised drawing A-101 – See brackets for location of revisions

7 Revised drawing S-100 – See brackets for location of revisions

8 Revised drawing S-101 – See brackets for location of revisions

9 Revised drawing S-501 – See brackets for location of revisions

SECTION 00010 - SOLICITATION CONTRACT FORM

The required response date/time has changed from 16-Sep-2016 02:00 PM to 20-Sep-2016 02:00 PM.

SECTION 00700 - CONTRACT CLAUSES

The following have been modified:

252.236-7001 CONTRACT DRAWINGS AND SPECIFICATIONS (AUG 2000)

(a) The Government will provide to the Contractor, without charge, one set of contract drawings and specifications, except publications incorporated into the technical provisions by reference, in electronic or paper media as chosen by the Contracting Officer.

(b) The Contractor shall--

(1) Check all drawings furnished immediately upon receipt;

(2) Compare all drawings and verify the figures before laying out the work;

(3) Promptly notify the Contracting Officer of any discrepancies;

(4) Be responsible for any errors that might have been avoided by complying with this paragraph (b); and

(5) Reproduce and print contract drawings and specifications as needed.

(c) In general--

(1) Large-scale drawings shall govern small-scale drawings; and

(2) The Contractor shall follow figures marked on drawings in preference to scale measurements.

(d) Omissions from the drawings or specifications or the misdescription of details of work that are manifestly necessary to carry out the intent of the drawings and specifications, or that are customarily performed, shall not relieve the Contractor from performing such omitted or misdescribed details of the work. The Contractor shall perform such details as if fully and correctly set forth and described in the drawings and specifications.

(e) The work shall conform to the specifications and the contract drawings identified on the following index of drawings:

Drawing Number

Sheet Number

MCNARY TURBINE STORAGE BUILDING

Revision Number

Date

GENERAL

MDG-1-0-28/7 G-001 COVER SHEET AND LOCATION MAPS

MDG-1-0-28/8 G-002 INDEX TO DRAWINGS A 9/6/16

GEOTECHNICAL

MDG-1-7-28/1 B-101 GEOTECHNICAL INFORMATION

CIVIL

MDG-1-7-28/2 C-001 LEGEND, ABBREVIATIONS - AND GENERAL NOTES

MDG-1-7-28/3 C-101 OVERALL SITE PLAN

MDG-1-7-28/4 C-102 SITE PLAN

MDG-1-7-28/5 C-103 GRADING AND - STORM DRAINAGE PLAN A 9/13/16

MDG-1-7-28/6 C-104 POTABLE WATER PIPING - PLAN A 9/13/16

MDG-1-7-28/7 C-301 STORM DRAINAGE SECTIONS

MDG-1-7-28/8 C-501 STORM DRAINAGE DETAILS

MDG-1-7-28/9 C-502 MISC. DETAILS

MDG-1-7-28/10 C-503 FLOOR DETAILS A 9/13/16

MDG-1-7-28/11 C-504 POTABLE WATER PIPING - DETAILS

MDG-1-7-28/12 C-505 THRUST RESTRAINT - DETAILS

STRUCTURAL

MDG-1-5-28/25 S-100 FOUNDATION PLAN B 9/13/16

MDG-1-5-28/26 S-101 JOINTING PLAN A 9/13/16

MDG-1-5-28/27 S-501 JOINTING DETAILS A 9/13/16

MDG-1-5-28/28 S-502 JOINTING DETAILS

ARCHITECTURAL

MDG-1-2-28/29 A-001 LEGEND, ABBREVIATIONS - AND GENERAL NOTES

MDG-1-2-28/30 A-101 FLOOR PLAN A 9/13/16

MDG-1-2-28/31 A-102 ROOF PLAN

MDG-1-2-28/32 A-201

BUILDING ELEVATIONS 1 - SOUTH & WEST

ELEVATIONS

MDG-1-2-28/33 A-202

BUILDING ELEVATIONS 2 - NORTH & EAST

ELEVATIONS

MDG-1-2-28/34 A-301 BUILDING SECTION 1

MDG-1-2-28/35 A-302 BUILDING SECTION 2

MDG-1-2-28/36 A-401 PLAN OF SLOPED FLOOR AREA

MDG-1-2-28/37 A-501 BUILDING AND DOOR DETAILS

MDG-1-2-28/38 A-502 LOUVER SCHEDULE AND DETAILS

MDG-1-2-28/39 A-503 PIPE BOLLARD DETAILS

MDG-1-2-28/40 A-504 INTERIOR WALL DETAILS

MECHANICAL

NDG-1-3-28/34 M-101 MECHANICAL - (PLAN VIEW)

NDG-1-3-28/35 M-401 MECHANICAL - ENLARGED VIEWS AND DETAILS

NDG-1-3-28/36 M-601 MECHANICAL - SCHEDULES AND CONTROLS

ELECTRICAL

MDG-1-6-28/35 E-001 LEGEND, ABBREVIATIONS - AND GENERAL NOTES

MDG-1-6-28/36 E-002 ELECTRICAL SITE PLAN

MDG-1-6-28/37 E-101 LIGHTING PLAN

MDG-1-6-28/38 E-102 POWER PLAN

MDG-1-6-28/39 E-501 LIGHTING DETAILS

MDG-1-6-28/40 E-502 LIGHTING CONTROL DETAILS

MDG-1-6-28/41 E-503 GROUNDING DETAILS

MDG-1-6-28/42 E-504 TRANSFORMER/JUNCTION - VAULT DETAILS

MDG-1-6-28/43 E-505 VAULT GROUNDING DETAILS

MDG-1-6-28/44 E-506 DUCTBANK DETAILS

MDG-1-6-28/45 E-507

EXISTING 4-WAY SWTICHGEAR - AND

WAREHOUSE TRANSFORMERS

MDG-1-6-28/46 E-508 6-WAY SWTICHGEAR - VAULT DETAILS

MDG-1-6-28/47 E-601 ONE LINE DIAGRAM A 9/13/16

MDG-1-6-28/48 E-602 PANEL SCHEDULES

MDG-1-6-28/49 E-603 PANEL SCHEDULES

TELECOMMUNICATIONS

MDG-1-6-10/4 T-001 LEGEND, ABBREVIATIONS - AND GENERAL NOTES A 8/31/16

MDG-1-6-10/5 T-002 TELECOMMUNICATIONS - SITE PLAN A 9/13/16

MDG-1-6-10/6 T-101 TELECOMMUNICATION - FLOOR PLAN A 8/31/16

MDG-1-6-10/7 T-501 TELECOMMUNICATION - DETAILS

MDG-1-6-10/8 T-502 TELECOMMUNICATION - DETAILS A 9/6/16

EQUIPMENT

MDG-1-3-28/37 Q-101 TURBINE COMPONENT - LAYOUT

(End of drawing list)

(End of Clause)

Contract drawings created on CADD will be available in electronic form for use by the Contractor. No For Information Only drawings are available on CADD. The Contractor assumes all risks associated in using electronic CADD drawings. The contract drawings shall govern if there are any discrepancies between the electronic copy and the contract drawing. The Contractor shall promptly notify the Contracting Officer of any discrepancies. The Government will not be responsible to correct the electronic CADD drawing. If contract modifications are issued, the associated electronic CADD drawings will not be available to the Contractor. Electronic copies of CADD drawings are only available in Bentley MicroStation format. The Government will provide the files on CD ROM. If the Contractor requires different media, such as floppy disks, the Contractor shall be responsible for all conversions required for their use and associated conversion inaccuracies.

(End of Summary of Changes)

McNary Turbine Storage Building W912EF-16-B-0010 Amend-0004

SECTION TABLE OF CONTENTS

DIVISION 33 - UTILITIES

SECTION 33 70 02.00 27

ELECTRICAL DISTRIBUTION SYSTEM, UNDERGROUND

PART 1 GENERAL

1.1 REFERENCES

1.2 SYSTEM DESCRIPTION

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 Detail Drawings

1.4.2 As-Built Drawings

1.5 DELIVERY, STORAGE, AND HANDLING

1.6 EXTRA MATERIALS

PART 2 PRODUCTS

2.1 STANDARD PRODUCT

2.2 NAMEPLATES

2.2.1 General

2.2.2 Liquid-Filled Transformer Nameplates

2.3 CORROSION PROTECTION

2.3.1 Aluminum Materials

2.3.2 Ferrous Metal Materials

2.3.2.1 Hardware

2.3.2.2 Equipment

2.3.3 Finishing

2.4 CABLES

2.4.1 Medium-Voltage Cables

2.4.1.1 General

2.4.1.2 Ratings

2.4.1.3 Conductor Material

2.4.1.4 Insulation

2.4.1.5 Shielding

2.4.1.6 Jackets

2.4.2 Low-Voltage Cables

2.4.2.1 Conductor Material

2.4.2.2 Insulation

2.4.2.3 Jackets

2.4.2.4 In Duct

2.5 CABLE JOINTS, TERMINATIONS, AND CONNECTORS

2.5.1 Medium-Voltage Cable Joints

2.5.2 Medium-Voltage Separable Insulated Connectors

2.5.3 Low-Voltage Cable Splices

2.5.4 Terminations

2.5.4.1 Factory Preformed Type

2.5.4.2 Taped Terminations

2.6 CONDUIT AND DUCTS

2.6.1 Metallic Conduit

2.6.2 Nonmetallic Ducts

SECTION 33 70 02.00 27 - Page 1

2.6.2.1 Concrete Encased Ducts

2.6.2.2 Direct Burial

2.6.3 Conduit Sealing Compound

2.7 MANHOLES, HANDHOLES, AND PULLBOXES

2.7.1 Power Manholes, Handholes, and Pullboxes

2.7.2 Telecommunications Maintenance Hole

2.8 TRANSFORMERS AND SWITCHGEAR

2.8.1 Pad-Mounted Transformers

2.8.1.1 High-Voltage Compartments

2.8.1.2 Load-Break Switch

2.8.1.3 Transformer Tank Sections

2.8.1.4 Low-Voltage Cable Compartments

2.8.1.5 Accessories

2.8.2 Pad-Mounted, Metal-Enclosed Switchgear

2.8.2.1 Ratings at 60 Hz shall be:

2.8.2.2 Operators, Devices, and Controls

2.8.2.3 Enclosures

2.9 METERING AND PROTECTIVE DEVICES

2.9.1 Circuit Breakers, Low-Voltage

2.9.1.1 Molded-Case Circuit Breakers

2.9.2 Fuses, Medium-Voltage, Including Current-Limiting

2.9.2.1 Construction

2.9.2.2 Ratings

2.9.2.3 E-Rated, Current-Limiting Power Fuses

2.9.2.4 C-Rated, Current-Limiting Power Fuses

2.9.3 Fuses, Low-Voltage, Including Current-Limiting

2.9.3.1 Cartridge Fuses

2.9.3.2 Transformer Circuit Fuses

2.9.4 Instrument Transformers

2.9.4.1 General

2.9.5 Watthour Meters

2.10 SURGE ARRESTERS

2.11 GROUNDING AND BONDING

2.11.1 Driven Ground Rods

2.11.2 Grounding Conductors

2.12 CONCRETE AND REINFORCEMENT

2.13 CABLE FIREPROOFING SYSTEMS

2.13.1 Fireproofing Tape

2.13.2 Plastic Tape

2.14 LIQUID DIELECTRICS

2.15 FACTORY TESTS

2.16 COORDINATED POWER SYSTEM PROTECTION

2.16.1 Scope of Analyses

2.16.2 Determination of Facts

2.16.3 Single Line Diagram

2.16.4 Fault Current Analysis

2.16.4.1 Method

2.16.4.2 Data

2.16.5 Coordination Study

2.16.6 Study Report

PART 3 EXECUTION

3.1 EXAMINATION

3.2 INSTALLATION REQUIREMENTS

3.2.1 Conformance to Codes

3.2.2 Disposal of Liquid Dielectrics

3.3 CABLE INSTALLATION

3.3.1 Cable Installation Plan and Procedure

SECTION 33 70 02.00 27 - Page 2

3.3.1.1 Cable Inspection

3.3.1.2 Duct Cleaning

3.3.1.3 Duct Lubrication

3.3.1.4 Cable Installation

3.3.1.5 Cable Installation Plan

3.3.2 Duct Line

3.3.3 Electric Manholes

3.3.4 Telecommunications Maintenance Holes

3.4 CABLE JOINTS

3.5 FIREPROOFING

3.5.1 Tape Method

3.6 DUCT LINES

3.6.1 Requirements

3.6.2 Treatment

3.6.3 Concrete Encasement

3.6.4 Nonencased Direct-Burial

3.6.5 Installation of Couplings

3.6.5.1 Plastic Duct

3.6.6 Duct Line Markers

3.7 MANHOLES, HANDHOLES, AND PULLBOXES

3.7.1 General

3.7.2 Electric Manholes

3.7.3 Telecommunications Maintenance Holes

3.7.4 Handholes

3.7.5 Pullboxes

3.7.6 Ground Rods

3.8 PAD-MOUNTED EQUIPMENT INSTALLATION

3.8.1 Concrete Pads

3.8.1.1 Construction

3.8.1.2 Concrete and Reinforcement

3.8.1.3 Sealing

3.8.2 Padlocks

3.9 GROUNDING

3.9.1 Grounding Electrodes

3.9.2 Grounding and Bonding Connections

3.9.3 Grounding and Bonding Conductors

3.9.4 Surge Arrester Grounding

3.9.5 Manhole, Handhole, or Concrete Pullbox Grounding

3.9.6 Metal Splice Case Grounding

3.10 FIELD TESTING

3.10.1 General

3.10.2 Safety

3.10.3 Ground-Resistance Tests

3.10.4 Medium-Voltage Cable Test

3.10.5 Low-Voltage Cable Test

3.10.6 Liquid-Filled Transformer Tests

3.10.7 Circuit Breaker Tests

3.10.8 Pre-Energization Services

3.10.9 Operating Tests

3.11 MANUFACTURER'S FIELD SERVICE

3.11.1 Onsite Training

3.12 ACCEPTANCE

-- End of Section Table of Contents --

SECTION 33 70 02.00 27 - Page 3 g4edddca Line

SECTION 33 70 02.00 27

ELECTRICAL DISTRIBUTION SYSTEM, UNDERGROUND

PART 1 GENERAL

1.1 REFERENCES

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

ASSOCIATION OF EDISON ILLUMINATING COMPANIES (AEIC)

AEIC CS8 (2007) specification for Extruded Dielectric Shielded Power Cables Rated 5 Through 46 kV

ASTM INTERNATIONAL (ASTM)

ASTM D 1654 (2008) Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments

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

ASTM A153/A153M (2009) Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

ASTM A48/A48M (2003; R 2012) Standard Specification for Gray Iron Castings

ASTM B117 (2011) Standard Practice for Operating Salt Spray (Fog) Apparatus

ASTM B3 (2012) Standard Specification for Soft or Annealed Copper Wire

ASTM B496 (2013) Standard Specification for Compact Round Concentric-Lay-Stranded Copper Conductors

ASTM B8 (2011) Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft

ASTM C 478 (2013) Standard Specification for Precast Reinforced Concrete Manhole Sections

ASTM D 1654 (2008) Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments

SECTION 33 70 02.00 27 - Page 4

ASTM D 4059 (2000; R 2010) Analysis of Polychlorinated Biphenyls in Insulating Liquids by Gas Chromatography

ASTM D 923 (2007) Standard Practice for Sampling Electrical Insulating Liquids

FM GLOBAL (FM)

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

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 242 (2001; Errata 2003) Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems - Buff Book

IEEE 386 (2006; INT 1 2011) Standard for Separable Insulated Connector Systems for Power Distribution Systems Above 600V

IEEE 399 (1997) Brown Book IEEE Recommended Practice for Power Systems Analysis

IEEE 404 (2012) Standard for Extruded and Laminated Dielectric Shielded Cable Joints Rated 2500 V to 500,000 V

IEEE 48 (2009) Standard for Test Procedures and Requirements for Alternating-Current Cable Terminations Used on Shielded Cables Having Laminated Insulation Rated 2.5 kV through 765 kV or Extruded Insulation Rated 2.5 kV through 500 kV

IEEE 81 (2012) Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System

IEEE C135.30 (1988) Standard for Zinc-Coated Ferrous Ground Rods for Overhead or Underground Line Construction

IEEE C2 (2012; Errata 2012; INT 1-4 2012; INT 5-7 2013) National Electrical Safety Code

IEEE C37.46 (2010) Standard for High Voltage Expulsion and Current-Limiting Type Power Class Fuses and Fuse Disconnecting Switches

IEEE C57.12.00 (2010) Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers

IEEE C57.12.26 (1992) Pad-Mounted Compartmental-Type, Self-Cooled, Three-Phase Distribution

SECTION 33 70 02.00 27 - Page 5

Transformers for Use with Separable Insulated High-Voltage Connectors

IEEE C57.13 (2008; INT 2009) Standard Requirements for Instrument Transformers

IEEE C62.11 (2012) Standard for Metal-Oxide Surge Arresters for Alternating Current Power Circuits (>1kV)

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

ANSI C119.1 (2011) Electric Connectors - Sealed Insulated Underground Connector Systems Rated 600 Volts

ANSI C12.4 (1984; R 2011) Registers - Mechanical Demand

ANSI C80.1 (2005) American National Standard for Electrical Rigid Steel Conduit (ERSC)

ANSI/NEMA FB 1 (2007) Standard for Fittings, Cast Metal Boxes, and Conduit Bodies for Conduit, Electrical Metallic Tubing, and Cable

NEMA FU 1 (2002; R 2007) Low Voltage Cartridge Fuses

NEMA LA 1 (2009) Standard for Surge Arresters

NEMA/ANSI C12.10 (2011) Physical Aspects of Watthour Meters

- Safety Standards

NEMA/ANSI C12.11 (2007) Instrument Transformers for Revenue Metering, 10 kV BIL through 350 kV BIL (0.6 kV NSV through 69 kV NSV)

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2014) National Electrical Code

U.S. ARMY (DA)

I3A (Feb 2010) Technical Criteria for the Installation Information Infrastructure Architecture

U.S. DEPARTMENT OF DEFENSE (DOD)

UFC 3-310-04 (2012) Seismic Design for Buildings

UNDERWRITERS LABORATORIES (UL)

UL 1072 (2006; Reprint Jun 2013) Medium-Voltage Power Cables

UL 1242 (2006; Reprint Jul 2007) Standard for Electrical Intermediate Metal Conduit -- Steel

SECTION 33 70 02.00 27 - Page 6

UL 198M (2003; Reprint Feb 2013) Standard for Mine-Duty Fuses

UL 467 (2007) UL Standard for Safety Grounding and Bonding Equipment

UL 486A-486B (2013) Wire Connectors

UL 489 (2013) Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures

UL 510 (2005; Reprint Jul 2013) Polyvinyl Chloride, Polyethylene and Rubber Insulating Tape

UL 514A (2013) Metallic Outlet Boxes

UL 6 (2007; Reprint Nov 2014) Electrical Rigid Metal Conduit-Steel

UL 651 (2011; Reprint Mar 2012) Standard for Schedule 40 and 80 Rigid PVC Conduit and Fittings

1.2 SYSTEM DESCRIPTION

Items provided under this section shall be specifically suitable for service conditions. Seismic details shall conform to UFC 3-310-04 and the manufacturer's specifications.

1.3 SUBMITTALS

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

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Detail Drawings; G EE As-Built Drawings; G EE

Drawings, as specified.

SD-03 Product Data

Fault Current Analysis; G EE;

Protective Device; G EE;

Coordination Study; G EE

The study with protective device equipment submittals. No time extension or similar contract modifications will be granted for work arising out of the requirements for this study. Approval of protective devices proposed shall be based on recommendations of this study. The Government will not be responsible for any changes to equipment, device ratings, settings, or additional

SECTION 33 70 02.00 27 - Page 7 labor for installation of equipment or devices ordered and/or procured prior to approval of the study.

Nameplates; G EE

Catalog cuts, brochures, circulars, specifications, product data, and printed information in sufficient detail and scope to verify compliance with the requirements of the contract documents.

Material and Equipment; G EE

A complete itemized listing of equipment and materials proposed for incorporation into the work. Each entry shall include an item number, the quantity of items proposed, and the name of the manufacturer of each such item.

Installation Requirements; G EE

As a minimum, installation procedures for transformers and splices. Procedures shall include cable pulling plans, diagrams, instructions, and precautions required to install, adjust, calibrate, and test the devices and equipment. Alternately, submit written justification of non-use per Section 01 62 35

RECYCLED / RECOVERED MATERIALS

Insulation; G EE

Submit manufacturer documentation indicating type of recovered materials and the percentage of such material that is recovered.

Insulating Dielectric Fluid; G EE

Submit manufacturer documentation indicating type and percentage of biobased content or written justification of non-use.

SD-06 Test Reports

Factory Tests; G EE

Certified factory test reports shall be submitted when the manufacturer performs routine factory tests, including tests required by standards listed in paragraph REFERENCES. Results of factory tests performed shall be certified by the manufacturer, or an approved testing laboratory, and submitted within 7 days following successful completion of the tests. The manufacturer's pass-fail criteria for tests specified in paragraph FIELD TESTING shall be included.

Field Testing; G EE

A proposed field test plan, 30 days prior to testing the installed system. No field test shall be performed until the test plan is approved. The test plan shall consist of complete field test procedures including tests to be performed, test equipment required, and tolerance limits.

Operating Tests; G EE

Two copies of the tests report in 8-1/2 by 11-inch binders

SECTION 33 70 02.00 27 - Page 8 having a minimum of three rings, including a separate section for each test. Sections shall be separated by heavy plastic dividers with tabs.

Cable Installation; G EE

Two copies of the information described below in 8-1/2 by 11-inch binders having a minimum of three rings from which material may readily be removed and replaced, including a separate section for each cable pull. Sections shall be separated by heavy plastic dividers with tabs, with all data sheets signed and dated by the person supervising the pull.

a. Site layout drawing with cable pulls numerically identified.

b. A list of equipment used, with calibration certifications.

The manufacturer and quantity of lubricant used on pull.

c. The cable manufacturer and type of cable.

d. The dates of cable pulls, time of day, and ambient temperature.

e. The length of cable pull and calculated cable pulling tensions.

f. The actual cable pulling tensions encountered during pull.

SD-07 Certificates

Material and Equipment; G EE

Where materials or equipment are specified to conform to the standards of the Underwriters Laboratories (UL) or to be constructed or tested, or both, in accordance with the standards of the American National Standards Institute (ANSI), the Institute of Electrical and Electronics Engineers (IEEE), or the National Electrical Manufacturers Association (NEMA), submit proof that the items provided conform to such requirements. The label of, or listing by, UL will be acceptable as evidence that the items conform. Either a certification or a published catalog specification data statement, to the effect that the item is in accordance with the referenced ANSI or IEEE standard, will be acceptable as evidence that the item conforms. A similar certification or published catalog specification data statement to the effect that the item is in accordance with the referenced NEMA standard, by a company listed as a member company of NEMA, will be acceptable as evidence that the item conforms. In lieu of such certification or published data, the Contractor may submit a certificate from a recognized testing agency equipped and competent to perform such services, stating that the items have been tested and that they conform to the requirements listed, including methods of testing of the specified agencies.

Compliance with above-named requirements does not relieve the Contractor from compliance with any other requirements of the specifications.

Cable Joints; G EE

SECTION 33 70 02.00 27 - Page 9

A certification that contains the names and the qualifications of people recommended to perform the splicing and termination of medium-voltage cables approved for installation under this contract. The certification shall indicate that any person recommended to perform actual splicing and terminations has been adequately trained in the proper techniques and have had at least three recent years of experience in splicing and terminating the same or similar types of cables approved for installation. In addition, any person recommended by the Contractor may be required to perform a practice splice and termination, in the presence of the Contracting Officer, before being approved as a qualified installer of medium-voltage cables. If that additional requirement is imposed, provide short sections of the approved types of cables along with the approved type of splice and termination kits, and detailed manufacturer's instruction for the proper splicing and termination of the approved cable types.

SD-10 Operation and Maintenance Data

Operation and Maintenance Manuals; G EE

Two complete hard copies, in booklet form and indexed, and one electronic copy in Adobe Acrobat (.pdf) format on CD or DVD, of operation and maintenance manuals, within 7 calendar days following the completion of tests and including assembly, installation, operation and maintenance instructions, spare parts data which provides supplier name, current cost, catalog order number, and a recommended list of spare parts to be stocked.

Manuals shall also include data outlining detailed procedures for system startup and operation, and a troubleshooting guide which lists possible operational problems and corrective action to be taken. A brief description of all equipment, basic operating features, and routine maintenance requirements shall also be included. Documents shall be bound in a binder marked or identified on the spine and front cover. A table of contents page shall be included and marked with pertinent contract information and contents of the manual. Tabs shall be provided to separate different types of documents, such as catalog ordering information, drawings, instructions, and spare parts data. Index sheets shall be provided for each section of the manual when warranted by the quantity of documents included under separate tabs or dividers.

1.4 QUALITY ASSURANCE

1.4.1 Detail Drawings

Submit detail drawings consisting of equipment drawings, illustrations, schedules, instructions, diagrams manufacturers standard installation drawings and other information necessary to define the installation and enable the Government to check conformity with the requirements of the contract drawings.

a. If departures from the contract drawings are deemed necessary by the Contractor, complete details of such departures shall be included with the detail drawings. Approved departures shall be made at no additional cost to the Government.

b. Detail drawings shall show how components are assembled, function

SECTION 33 70 02.00 27 - Page 10 together and how they will be installed on the project. Data and drawings for component parts of an item or system shall be coordinated and submitted as a unit. Data and drawings shall be coordinated and included in a single submission. Multiple submissions for the same equipment or system are not acceptable except where prior approval has been obtained from the Contracting Officer. In such cases, a list of data to be submitted later shall be included with the first submission. Detail drawings shall consist of the following:

(1) Detail drawings showing physical arrangement, construction details, connections, finishes, materials used in fabrication, provisions for conduit or busway entrance, access requirements for installation and maintenance, physical size, electrical characteristics, foundation and support details, and equipment weight. Drawings shall be drawn to scale and/or dimensioned. All optional items shall be clearly identified as included or excluded.

(2) Internal wiring diagrams of equipment showing wiring as actually provided for this project. External wiring connections shall be clearly identified.

(3) Detail drawings shall as a minimum depict the installation of the following items:

(a) Medium-voltage cables and accessories including cable installation plan.

(b) Transformers.

(c) Surge arresters.

(d) Medium-voltage switchgear

1.4.2 As-Built Drawings

The as-built drawings shall be a record of the construction as installed.

The drawings shall include the information shown on the contract drawings as well as deviations, modifications, and changes from the contract drawings, however minor. The as-built drawings shall be a full sized set of prints marked to reflect deviations, modifications, and changes. The as-built drawings shall be complete and show the location, size, dimensions, part identification, and other information. Additional sheets may be added. The as-built drawings shall be jointly inspected for accuracy and completeness by the Contractor's quality control representative and by the Contracting Officer prior to the submission of each monthly pay estimate. Upon completion of the work, provide three full sized sets of the marked prints to the Contracting Officer for approval. If upon review, the as-built drawings are found to contain errors and/or omissions, they will be returned to the Contractor for correction. Correct and return the as-built drawings to the Contracting Officer for approval within 10 calendar days from the time the drawings are returned to the Contractor.

1.5 DELIVERY, STORAGE, AND HANDLING

Visually inspect devices and equipment when received and prior to acceptance from conveyance. Protect stored items from the environment in accordance with the manufacturer's published instructions. Damaged items shall be replaced. Store oil filled transformers in accordance with the

SECTION 33 70 02.00 27 - Page 11 manufacturer's requirements. Metal poles shall be handled and stored in accordance with the manufacturer's instructions.

1.6 EXTRA MATERIALS

One additional spare fuse or fuse element for each furnished fuse or fuse element shall be delivered to the contracting officer when the electrical system is accepted. Two complete sets of all special tools required for maintenance shall be provided, complete with a suitable tool box. Special tools are those that only the manufacturer provides, for special purposes (to access compartments, or operate, adjust, or maintain special parts).

PART 2 PRODUCTS

2.1 STANDARD PRODUCT

Provide material and equipment which are the standard product of a manufacturer regularly engaged in the manufacture of the product and that essentially duplicate items that have been in satisfactory use for at least 2 years prior to bid opening. Items of the same classification shall be identical including equipment, assemblies, parts, and components. Insulation and concrete materials shall conform to EPA requirements in accordance with 01 62 35 RECYCLED / RECOVERED MATERIALS.

All references to oil in this specification section shall be interpreted to include any liquid dielectric or insulating fluid.

2.2 NAMEPLATES

2.2.1 General

Each major component of this specification shall have the manufacturer's name, address, type or style, model or serial number, and catalog number on a nameplate securely attached to the equipment. Nameplates shall be made of noncorrosive metal. Equipment containing liquid dielectrics shall have the type of dielectric on the nameplate. As a minimum, nameplates shall be provided for transformers, panelboards, circuit breakers and meters.

2.2.2 Liquid-Filled Transformer Nameplates

Power transformers shall be provided with nameplate information in accordance with IEEE C57.12.00 . Nameplates shall indicate the number of gallons and composition of liquid-dielectric, and shall be permanently marked with a statement that the transformer dielectric to be supplied is non-polychlorinated biphenyl. If transformer nameplate is not so marked, furnish manufacturer's certification for each transformer that the dielectric is non-PCB classified, with less than 2 ppm PCB content in accordance with paragraph LIQUID DIELECTRICS. Certifications shall be related to serial numbers on transformer nameplates. Transformer dielectric exceeding the 2 ppm PCB content or transformers without certification will be considered as PCB insulated and will not be accepted.

2.3 CORROSION PROTECTION

2.3.1 Aluminum Materials

Aluminum shall not be used.

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2.3.2 Ferrous Metal Materials

2.3.2.1 Hardware

Ferrous metal hardware shall be hot-dip galvanized in accordance with ASTM A153/A153M and ASTM A123/A123M .

2.3.2.2 Equipment

Equipment and component items, including but not limited to transformer stations and ferrous metal luminaries not hot-dip galvanized or porcelain enamel finished, shall be provided with corrosion-resistant finishes which shall withstand 120 hours of exposure to the salt spray test specified in ASTM B117 without loss of paint or release of adhesion of the paint primer coat to the metal surface in excess of 1/16 inch from the test mark. The scribed test mark and test evaluation shall be in accordance with ASTM D 1654 with a rating of not less than 7 in accordance with TABLE 1, (procedure A). Cut edges or otherwise damaged surfaces of hot-dip galvanized sheet steel or mill galvanized sheet steel shall be coated with a zinc rich paint conforming to the manufacturer's standard.

2.3.3 Finishing

Painting required for surfaces not otherwise specified and finish painting of items only primed at the factory shall be as specified.

2.4 CABLES

Cables shall be single conductor type unless otherwise indicated.

2.4.1 Medium-Voltage Cables

2.4.1.1 General

Cable construction shall be Type MV, conforming to NFPA 70 and UL 1072 .

Cables shall be manufactured for use in duct applications.

2.4.1.2 Ratings

Cables shall be rated for a circuit voltage of 15 kV.

2.4.1.3 Conductor Material

Underground cables shall be soft drawn copper complying with ASTM B3 and ASTM B8 for regular concentric and compressed stranding or ASTM B496 for compact stranding.

2.4.1.4 Insulation

Cable insulation shall be ethylene-propylene-rubber (EPR) insulation conforming to the requirements of AEIC CS8 . A 133 percent insulation level shall be used on 15 kV rated cables.

2.4.1.5 Shielding

Cables rated for 2 kV and above shall have a semiconducting conductor shield, a semiconducting insulation shield, and an overall copper tape or wire shield for each phase. The shield shall be sized to meet IEEE C2 requirements for a ground fault availability of the circuit.

SECTION 33 70 02.00 27 - Page 13

2.4.1.6 Jackets

Cables shall be provided with a PVC or polyethylene jacket.

2.4.2 Low-Voltage Cables

Cables shall be rated 600 volts and shall conform to the requirements of NFPA 70 , and must be UL listed for the application or meet the applicable section of either ICEA or NEMA standards.

2.4.2.1 Conductor Material

Underground cables shall be annealed copper complying with ASTM B3 and ASTM B8. Intermixing of copper and aluminum conductors is not permitted.

2.4.2.2 Insulation

Insulation must be in accordance with NFPA 70 , and must be UL listed for the application or meet the applicable sections of either ICEA, or NEMA standards.

2.4.2.3 Jackets

Multiconductor cables shall have an overall PVC outer jacket.

2.4.2.4 In Duct

Cables shall be single-conductor cable, in accordance with NFPA 70 .

2.5 CABLE JOINTS, TERMINATIONS, AND CONNECTORS

2.5.1 Medium-Voltage Cable Joints

Medium-voltage cable joints shall comply with IEEE 404 . Medium-voltage cable terminations shall comply with IEEE 48 . Joints shall be the standard products of a manufacturer and shall be either of the factory preformed type or of the kit type containing tapes and other required parts. Joints shall have ratings not less than the ratings of the cables on which they are installed. Splice kits may be of the heat-shrinkable type for voltages up to 15 kV, of the premolded splice and connector type, the conventional taped type, or the resin pressure-filled overcast taped type for voltages up to 35 kV; except that for voltages of 7.5 kV or less a resin pressure-filled type using a plastic-tape mold is acceptable.

Joints used in manholes, handholes, vaults and pull boxes shall be certified by the manufacturer for waterproof, submersible applications.

2.5.2 Medium-Voltage Separable Insulated Connectors

Separable insulated connectors shall comply with IEEE 386 and shall be of suitable construction or standard splice kits shall be used. Separable insulated connectors are acceptable for voltages up to 35 kV. Connectors shall be of the loadbreak type as indicated, of suitable construction for the application and the type of cable connected, and shall include cable shield adaptors. Separable insulated connectors shall not be used as substitutes for conventional permanent splices. External clamping points and test points shall be provided.

SECTION 33 70 02.00 27 - Page 14

2.5.3 Low-Voltage Cable Splices

Low-voltage cable splices and terminations shall be rated at not less than 600 Volts. Splices in conductors No. 10 AWG and smaller shall be made with an insulated, solderless, pressure type connector, conforming to the applicable requirements of UL 486A-486B . Splices in conductors No. 8 AWG and larger shall be made with noninsulated, solderless, pressure type connector, conforming to the applicable requirements of UL 486A-486B .

Splices shall then be covered with an insulation and jacket material equivalent to the conductor insulation and jacket. Splices below grade or in wet locations shall be sealed type conforming to ANSI C119.1 or shall be waterproofed by a sealant-filled, thick wall, heat shrinkable, thermosetting tubing or by pouring a thermosetting resin into a mold that surrounds the joined conductors.

2.5.4 Terminations

Terminations shall be in accordance with IEEE 48 , Class 1 or Class 2; of the molded elastomer, wet-process porcelain, prestretched elastomer, heat-shrinkable elastomer, or taped type. Acceptable elastomers are track-resistant silicone rubber or track-resistant ethylene propylene compounds, such as ethylene propylene rubber or ethylene propylene diene monomer. Separable insulated connectors may be used for apparatus terminations, when such apparatus is provided with suitable bushings.

Terminations shall be of the outdoor type, except that where installed inside outdoor equipment housings which are sealed against normal infiltration of moisture and outside air, indoor, Class 2 terminations are acceptable. Class 3 terminations are not acceptable. Terminations, where required, shall be provided with mounting brackets suitable for the intended installation and with grounding provisions for the cable shielding, metallic sheath, and armor.

2.5.4.1 Factory Preformed Type

Molded elastomer, wet-process porcelain, prestretched, and heat-shrinkable terminations shall use factory preformed components to the maximum extent practicable rather than tape build-up. Terminations shall have basic impulse levels as required for the system voltage level. Leakage distances shall comply with wet withstand voltage test requirements of IEEE 48 for the next higher Basic Insulation Level (BIL) level.

Anti-tracking tape shall be applied over exposed insulation of preformed molded elastomer terminations.

2.5.4.2 Taped Terminations

Taped terminations shall use standard termination kits providing terminal connectors, field-fabricated stress cones, and rain hoods. Terminations shall be at least 35 inches long from the end of the tapered cable jacket to the start of the terminal connector, or not less than the kit manufacturer's recommendations, whichever is greater.

2.6 CONDUIT AND DUCTS

Ducts shall be single, round-bore type, with wall thickness and fittings suitable for the application. Medium-voltage duct lines shall be Schedule 40 PVC ducts encased in 3000 psi concrete. Low-voltage and secondary duct lines shall be non-encased direct-burial, Schedule 40 PVC.

Telecommunications ducts shall be Schedule 40 PVC ducts encased in 3000

SECTION 33 70 02.00 27 - Page 15 psi concrete. Provide insulated #12 AWG tracer wire embedded in the encasement centered on top of the ducts in accordance with I3A Technical Criteria.

2.6.1 Metallic Conduit

Intermediate metal conduit shall comply with UL 1242 . Rigid galvanized steel conduit shall comply with UL 6 and ANSI C80.1 . Metallic conduit fittings and outlets shall comply with UL 514A and ANSI/NEMA FB 1 .

2.6.2 Nonmetallic Ducts

2.6.2.1 Concrete Encased Ducts

UL 651 Schedule 40.

2.6.2.2 Direct Burial

UL 651 Schedule 40 .

2.6.3 Conduit Sealing Compound

Compounds for sealing ducts and conduit shall have a putty-like consistency workable with the hands at temperatures as low as 35 degrees F, shall neither slump at a temperature of 300 degrees F, nor harden materially when exposed to the air. Compounds shall adhere to clean surfaces of fiber or plastic ducts; metallic conduits or conduit coatings;

concrete, masonry, or lead; any cable sheaths, jackets, covers, or insulation materials; and the common metals. Compounds shall form a seal without dissolving, noticeably changing characteristics, or removing any of the ingredients. Compounds shall have no injurious effect upon the hands of workmen or upon materials.

2.7 MANHOLES, HANDHOLES, AND PULLBOXES

2.7.1 Power Manholes, Handholes, and Pullboxes

Manholes, handholes, and pullboxes shall be as indicated. Strength of manholes, handholes, and pullboxes and their frames and covers shall conform to the requirements of IEEE C2 . Precast-concrete manholes shall have the required strength established by ASTM C 478 . Frames and covers shall be made of gray cast iron and a machine-finished seat shall be provided to ensure a matching joint between frame and cover. Cast iron shall comply with ASTM A48/A48M, Class 30B, minimum. Handholes for low voltage cables installed in parking lots, sidewalks, and turfed areas shall be fabricated from an aggregate consisting of sand and with continuous woven glass strands having an overall compressive strength of at least 10,000 psi and a flexural strength of at least 5,000 psi.

Pullbox and handhole covers in sidewalks, and turfed areas shall be of the same material as the box. Concrete pullboxes shall consist of precast reinforced concrete boxes, extensions, bases, and covers.

2.7.2 Telecommunications Maintenance Hole

Telecommunications Maintenance Hole shall be precast reinforced concrete, Utility Vault model number 4484-TCA or as indicated with a minimum compressive strength of 7000 psi at 28-days and with AASHTO H-20 load rating. Maintenance hole shall be equipped with PVC duct terminators at all points of entry (Term-a-duct or similar) and galvanized C-channels on

SECTION 33 70 02.00 27 - Page 16 longitudinal sides. Provide galvanized embedded corrosion resistant pulling irons installed in each corner, top and bottom. Each maintenance hole shall have a galvanized steel ladder and a sump with a cast iron grill type frame and cover. Provide a ground rod hole, ground rod and bonding ribbon along the upper perimeter with one bonding ribbon from floor to ceiling on each wall. Provide an entrance collar, frame, and cover. Cover shall use reducing entrance collars as required to provide for a Contractor furnished and installed 30-inch diameter manhole cover marked "COMMUNICATIONS."

2.8 TRANSFORMERS AND SWITCHGEAR

Transformers and switchgear shall be of the outdoor type having the ratings and arrangements indicated. Medium-voltage ratings of cable terminations shall be 15 kV between phases for 133 percent insulation level.

2.8.1 Pad-Mounted Transformers

Pad-mounted transformers shall comply with IEEE C57.12.26 and shall be of the loop feed type. Pad-mounted transformer stations shall be assembled and coordinated by one manufacturer and each transformer station shall be shipped as a complete unit so that field installation requirements are limited to mounting each unit on a concrete pad and connecting it to primary and secondary lines. Stainless steel pins and hinges shall be provided. Barriers shall be provided between high- and low-voltage compartments. High-voltage compartment doors shall be interlocked with low-voltage compartment doors to prevent access to any high-voltage section unless its associated low-voltage section door has first been opened. Compartments shall be sized to meet the specific dimensional requirements of IEEE C57.12.26 . Pentahead locking bolts shall be provided with provisions for a padlock.

2.8.1.1 High-Voltage Compartments

The high-voltage compartment shall be dead-front construction. Primary switching and protective devices shall include loadbreak switching, oil-immersed, current-limiting, bayonet-type fuses, medium-voltage separable loadbreak connectors, universal bushing wells and inserts or integral one piece bushings and surge arresters. Fuses shall comply with the requirements of paragraph METERING AND PROTECTIVE DEVICES. The switch shall be mounted inside transformer tank with switch operating handle located in high-voltage compartment and equipped with metal loop for hook stick operation. Fuses shall be interlocked with switches so that fuses can be removed only when the associated switch is in the "OPEN" position.

Adjacent to medium-voltage cable connections, a nameplate or equivalent stenciled inscription shall be provided inscribed "DO NOT OPEN CABLE CONNECTORS UNLESS SWITCH IS OPEN." Surge arresters shall be fully insulated and configured to terminate on the same bushing as the primary cable by means of a loadbreak, feed-through bushing insert.

2.8.1.2 Load-Break Switch

a. Loop feed sectionalizer switches: Provide three, two-position, oil-immersed type switches to permit closed transition loop feed and sectionalizing. Each switch shall be rated at 15 kV, 95 kV BIL, with a continuous current rating and load-break rating of 200 amperes, and a make-and-latch rating of 10,000 rms amperes symmetrical. Locate the switch handle in the high-voltage compartment. Operation of switches

SECTION 33 70 02.00 27 - Page 17 shall be as follows:

DESCRIPTION OF SWITCH ARRANGEMENT SWITCH POSITION

LINE A SW LINE B SW XFMR SW

OPEN CLOSE OPEN CLOSE OPEN CLOSE

1 Line A connected to Line B and both lines connected to transformer

X X X

2 Transformer connected to Line A only X X X

3 Transformer connected to Line B only X X X

4 Transformer open and loop closed X X X

5 Transformer open and loop open X X X

2.8.1.3 Transformer Tank Sections

Transformers shall comply with IEEE C57.12.00 and IEEE C57.12.26 and shall be of the less-flammable, liquid-insulated type bio-based biodegradable dielectric liquid dervied from natural esters with high molecular-weight hydrocarbon or dimethyl silicone liquid. Transformers shall be suitable for outdoor use and shall have two separate windings per phase. Standard NEMA primary taps shall be provided. Where primary taps are not specified, 4, 2-1/2 percent rated kVA high-voltage taps shall be provided 2 above and 2 below rated, primary voltage. Operating handles for primary tap changers for de-energized operation shall be located within high-voltage compartments, externally to transformer tanks. Adjacent to the tap changer operating handle, a nameplate or equivalent stenciled inscription shall be provided and inscribed "DO NOT OPERATE UNDER LOAD."

Transformer ratings at 60 Hz shall be as indicated on the drawings.

2.8.1.4 Low-Voltage Cable Compartments

Neutrals shall be provided with fully-insulated bushings. Clamp type cable terminations, suitable for copper conductors entering from below, shall be provided as necessary.

2.8.1.5 Accessories

High-voltage warning signs shall be permanently attached to each side of transformer stations. Voltage warning signs shall comply with IEEE C2 .

Copper-faced steel or stainless steel ground connection pads shall be provided in both the high- and low-voltage compartments. Dial-type thermometer, liquid-level gauge, and drain valve with built-in sampling

SECTION 33 70 02.00 27 - Page 18 device shall be provided for each transformer station.

Insulated-bushing-type parking stands shall be provided adjacent to each separable load-break elbow to provide for cable isolation during sectionalizing operations.

2.8.2 Pad-Mounted, Metal-Enclosed Switchgear

The switchgear shall be configured with 6 compartments equipped with bio-degradable type oil-insulated, load-interrupter switches, as indicated. The switch and tap sections shall be rated 200A.

2.8.2.1 Ratings at 60 Hz shall be:

a. Nominal voltage (kV)......................................13.8, 12.47 (dual voltage).

b. Rated maximum voltage (kV)................................15.

c. Rated continuous current (A)..............................200.

d. BIL (kV)..................................................95.

2.8.2.2 Operators, Devices, and Controls

Operators and controls shall be provided for the switchgear as follows:

a. Switches shall be provided with a manual, handle-type operator or a push-button mechanical spring tripping…