R17PS00016_Amendment_0001_TRD_Powerplants_Replacement_of_Station_Service_Transformers_&_Low_Voltage_Bus_Systems.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE Page of Pages

2. AMENDMENT/MODIFICATION

3. EFFECTIVE DATE

1/17/2017

4. REQUISITION/PURCHASE NO.

SP PR #17802

5. PROJECT NO.

20-C0847

6. ISSUED BY CODE: R20

Bureau of Reclamation Mid-Pacific Region Regional Office Division of Acquisition Services 2800 Cottage Way, Room E-1815 Sacramento, California 95825-1898

7. ADMINISTERED BY CODE: R20

Bureau of Reclamation Mid-Pacific Regional Office 2800 Cottage Way, Room E-1815 Sacramento, California 95825-1898

8. NAME AND ADDRESS OF CONTRACTOR

X

9A. AMENDMENT OF SOLICITATION NO.

R17PS00016

9B. DATED (SEE ITEM 11)

12/28/2016

10A. MODIFICATION OF CONTRACT NO.

10B. DATED (SEE ITEM 13)

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 offers ( ) is extended (x) is not extended. Offerors 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 ACKNOWLEDGEMENT 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:

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 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 and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible) The Solicitation cited in block 9A above is hereby amended.

A. Title: RAX 566 Trinity River Division Powerplants Replacement of Station Service Transformers & Low Voltage Bus Systems

B. Purpose: The purpose of this amendment is to make revisions to the original specifications and the associated section B.

C. Description: This amendment hereby incorporates the following:

Attached revised documents are hereby incorporated.

a) Remove and replace Section B, Continuation Pages with Section B, Continuation Pages Amendment 0001

b) Remove and replace following Specification Sections:

Table of Contents with Table of Contents, Amendment 0001 Section 01 33 00 with Section 01 33 00, Amendment 0001 Section 26 09 14 with Section 26 09 14, Amendment 0001 Section 26 22 16 with Section 26 22 16, Amendment 0001 Section 26 25 43 with Section 26 25 43, Amendment 0001

c) Add Section 28 46 16, Amendment 0001 The offeror must acknowledge this amendment by following one of the methods mentioned in Item 11 above.

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) 16A. NAME AND TITLE OF CONTRACTING OFFICER

Erim Celik Contracting Officer

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

16C. DATE SIGNED

NSN 7540-01-152-807030-105 STANDARD FORM 30 (REV. 10-83)

PREVIOUS EDITION UNUSABLE Prescribed by GSA

MICROSOFT WORD VERSION

Solicitation No. R17PS00016 Amendment 0001 TRD Powerplants Replacement of Station Service Transformers & LV Bus Systems - RAX 566 Specifications No. 20-C0847

Schedule

B - 1

CONTINUATION OF

SECTION B – SUPPLIES OR SERVICES AND PRICES

RAX 566 REPLACEMENT OF STATION SERVICE TRANSFORMERS

& LOW VOLTAGE BUS SYSTEMS

B.1 PRICE SCHEDULE

(a) Offers will be considered for award on the following Price Schedule, but no offer will be considered for award on only a part of the Price Schedule.

(b) Offers are subject to the terms and conditions of this solicitation.

(c) See the contract clause at WBR 1452.232-81, Payment for Mobilization and Preparatory Work, for CLINS 1, 11 and 22.

(d) Definitions:

(1) CLIN – Contract Line Item Number.

(2) AU- Activity Unit: AU – Activity Unit is used solely for the purposes of allowing progress payments under the Department of Interior’s Financial & Business Management System (FBMS). This line represents the total value for the pricing proposal.

Spring Creek Powerplant

CLIN Section Supplies or Services Quantity and Unit

Unit Price

Amount

1 WBR

1452.232-

Mobilization and Preparatory Work

For the lump sum of $

2 01 31 30 Contract Document Management System

For the lump sum of $

3 02 83 30 Removal and Disposal of Equipment with Coatings Containing Heavy Metals

For the lump sum of $

B - 2

CLIN Section Supplies or Services Quantity and Unit

Unit Price

Amount

4 02 84 00 Removal and Disposal of Polychlorinated Biphenyls (PCBs)

For the lump sum of $

5 26 22 16 28 46 16

Power Transformers [KRB and KRC]

For the lump sum of $

6 26 25 13 Removing and Modifying Existing Equipment

For the lump sum of $

7 26 25 43 600-Volt Enclosed Non- Segregated Phase Bus

For the lump sum of $

8 26 28 30 Enclosed Circuit Breakers For the lump sum of $

9 26 05 02 26 05 10 26 05 33

Interior and Exterior Cable and Conduit

For the lump sum of $

10 26 09 14 Current Transformers For the lump sum of $

Total for Spring Creek Powerplant $_______________

B - 3

Trinity Powerplant

Unit Price

Amount

11 WBR

1452.232-

Mobilization and Preparatory Work

For the lump sum of $

12 01 31 30 Contract Document Management System

For the lump sum of $

13 02 83 30 Removal and Disposal of Equipment with Coatings Containing Heavy Metals

For the lump sum of $

14 02 84 00 Removal and Disposal of Polychlorinated Biphenyls (PCBs)

For the lump sum of $

15 26 22 16 28 46 16

Power Transformers [KRB and KRC]

For the lump sum of $

16 26 25 13 Removing and Modifying Existing Equipment

For the lump sum of $

17 26 25 43 600-Volt Enclosed Non- Segregated Phase Bus

For the lump sum of $

18 26 28 30 Enclosed Circuit Breakers For the lump sum of $

19 26 05 02 26 05 10 26 05 33

Interior and Exterior Cable and Conduit

20 26 32 10 Engine-Generator Set For the lump sum of $

B - 4

CLIN Section Supplies or Services Quantity and Unit

Unit Price

Amount

21 31 23 00 31 23 60 31 23 90 32 12 22

Exterior Powerplant Cable and Conduit in Trench for Supplemental Station Service Power

Total for Trinity Powerplant $____________

B - 5

Judge Francis Carr (JF) Carr Powerplant

Unit Price

Amount

22 WBR

1452.232-

Mobilization and Preparatory Work

For the lump sum of $

23 01 31 30 Contract Document Management System

For the lump sum of $

24 02 83 30 Removal and Disposal of Equipment with Coatings Containing Heavy Metals

For the lump sum of $

25 02 84 00 Removal and Disposal of Polychlorinated Biphenyls (PCBs)

For the lump sum of $

26 26 22 16 28 46 16

Power Transformer

[KRC]

For the lump sum of $

27 26 25 13 Removing and Modifying Existing Equipment

For the lump sum of $

28 26 25 43 600-Volt Enclosed Non- Segregated Phase Bus

For the lump sum of $

29 26 28 30 Enclosed Circuit Breakers For the lump sum of $

30 26 05 02 26 05 10 26 05 33

Interior and Exterior Cable and Conduit

For the lump sum of $

Total for JF Carr Powerplant $_______________

Sum of Trinity, JF Carr and Spring Creek Powerplants $_______________

END OF SECTION

Solicitation No. R17PS00016 Amendment 0001

Table of Contents 00 01 10 - 1

SECTION C - DESCRIPTION / SPECIFICATIONS

TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 Summary of Work 01 14 10 Use of Site 01 14 30 Outages 01 31 30 Contract Documents Management System 01 32 10 Construction Program 01 33 00 Submittals 01 33 26 Electrical Drawings and Data 01 35 10 Safety Data Sheets 01 35 20 Safety and Health 01 35 22 First Aid and Communication 01 35 30 Contractor's Onsite Safety Personnel 01 51 00 Temporary Utilities 01 55 00 Vehicular Access and Parking 01 56 10 Protection of Existing Installations 01 56 15 Protection of Existing Utilities 01 57 35 Oil Spill Prevention 01 60 00 Product Requirements 01 74 00 Cleaning and Waste Management 01 78 30 Project Record Documents

DIVISION 02 - EXISTING CONDITIONS

02 83 33 Removal and Disposal of Equipment with Coatings Containing Heavy Metals 02 84 40 Removal and Disposal of Polychlorinated Biphenyls (PCBs)

DIVISION 03 - CONCRETE

03 30 00 Cast-In-Place Concrete 03 62 20 Grouting Mortar For Equipment And Metalwork

DIVISION 05 - METALS

05 12 73 Adhesive-Anchored Bolts

DIVISION 26 - ELECTRICAL

26 05 02 Basic Electrical Materials and Methods 26 05 10 Conductors and Cables

Table of Contents 00 01 10 - 2

26 05 20 Grounding and Bonding 26 05 33 Electrical Conduit 26 09 14 Current Transformers 26 22 16 Power Transformers 26 25 13 Removing and Modifying Existing Equipment 26 25 43 600-Volt Enclosed Non-Segregated Phase Bus 26 28 30 Enclosed Circuit Breakers 26 32 10 Engine-Generator Set

DIVISION 28 - ELECTRONIC SAFETY AND SECURITY

28 46 16 Transformer Monitor

DIVISION 31 - EARTHWORK

31 23 00 Sand Backfill for Buried Electrical Conduit 31 23 60 Pipe Trench Earthwork 31 23 90 Disposal of Excavated Materials

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 12 22 Asphalt Concrete Pavement

DIVISION 51 - INFORMATION AVAILABLE TO OFFERORS

51 00 00 Information Available to Offerors Listing 51 00 01 Photographs: Trinity Powerplant 51 00 02 Photographs: Judge Francis (JF) Carr Powerplant 51 00 03 Photographs: Spring Creek Powerplant 51 02 84 Oil Test Results

DIVISION 52 - DRAWINGS

52 00 00 Drawings

END OF CONTENTS

Submittals 01 33 00 - 1

SECTION 01 33 00

SUBMITTALS

PART 1 GENERAL

1.01 PAYMENT

A. Cost:

1. Include in prices offered in the Schedules for other items of work.

1.02 DEFINITIONS

A. Days: Calendar days.

B. Required Submittal Number (RSN): Identifies items to be submitted together as a complete submittal.

1.03 SUBMITTAL REQUIREMENTS

A. In case of conflict between requirements of this section and requirements included elsewhere in these specifications, requirements included elsewhere take precedence.

B. General:

1. Prepare in English.

2. Label with contract number and title, and RSN.

3. Measurement units: US Customary Units.

C. Drawings:

2. Minimum identification in title block:

a. Contract number and title

b. Contractor’s or supplier’s title and drawing number

c. Responsible parties name and date on each revision

3. Provide 3-by-3-inch space next to title block for review stamps.

4. Size: D size (22 inches by 34 inches).

5. Draw to scale with neat lettering using drafting equipment or computer drafting equipment.

6. Government Format drawings:

01 33 00 - 2

a. Prepare drawings designated as “Government Format” in the specifications as follows:

1) Title block and sheet format:

(a) As shown on Drawing 40-D-7102.

(b) Government will provide specific title block information to be used.

2) Drawing format:

(a) AUTOCAD, Version 2014 or later.

(b) In accordance with NIBS NCS.

3) Size: D-size (22-inch by 34-inch) as defined by ASME Y14.1.

4) If necessary, Government will provide an electronic AutoCAD template.

7. Final drawings:

a. AutoCAD® format (.dwg) version 2012.

b. Original D size (22 inches by 34 inches) plots.

c. Provide computer drawing files on CD-ROM disc in AutoCAD® (*.dwg).

d. Show as-built changes, including revision dates, made during installation.

D. Product Data:

1. Mark manufacturer's data for commercial products or equipment, such as catalog cut sheets.

a. Identify manufacturer's name, type, model, size, and characteristics.

b. Illustrate that product or equipment meets requirements of specifications.

c. Mark items to be furnished in a manner that will photocopy (no highlighter).

d. Strike through items that do not apply.

E. Certifications:

1. Certifications by a registered professional: Signed and sealed by registered professional.

2. Manufacturer’s certifications: Signed by authorized representative of manufacturer.

F. Manuals:

1. Copies:

01 33 00 - 3

a. Printed copies: Bound and indexed.

b. Electronic copies: Adobe pdf on CD-ROM discs.

1) Bookmark longer files to assist in navigating file.

2. Contents:

a. Parts identification lists, lists of special tools, and accessories.

b. Schematics and wiring diagrams.

c. Detailed instructions for installing, operating, lubricating, and maintaining equipment.

d. As-built drawings, photographs, and test records or reports if required by the specifications.

1.04 SUBMITTALS PROCEDURES

A. Submit only checked submittals. Submittals without evidence of Contractor's approval will be returned for resubmission.

B. Submit complete sets of required materials for each RSN as specified in “Submittals Required” column in Table 01 33 00A - List of Submittals. A complete set includes all listed items for RSNs with multiple parts.

C. Submit number of sets specified in “No. of sets to be sent to:” columns in Table

1. 01 33 00A - List of Submittals.

a. Submittals identified with “CDMS” in the “Sets to be sent” column shall be submitted electronically in accordance with Section 01 31 30 - Contract Document Management System.

D. Include the following information in transmittal letters:

1. Contract number and title.

2. RSN for each attached submittal.

a. Responsible code.

3. Identify submittal as initial or resubmittal.

E. Resubmittal of submittals not approved:

1. Mark changes such that they are readily identifiable and show revision date.

2. Describe reasons for significant changes in transmittal letter.

3. Resubmit returned submittals within 21 days after receiving the comments, unless otherwise directed.

01 33 00 - 4

4. Requirements for initial submittals apply to resubmittals.

F. More than one RSN may be submitted under a transmittal letter, provided the responsible code is the same.

1.05 GOVERNMENT REVIEW OF SUBMITTALS

A. Time Required:

1. Submittal review will require 28 days for review of each submittal or resubmittal, unless otherwise specified.

2. ”Except for RSNs 01 32 10-2, 01 32 10-3, and 01 35 20-1, one set of submittals will be returned either approved, conditionally approved, or not approved.

RSNs 01 32 10-2, 01 32 10-3, and 01 35 20-1 will be returned accepted, conditionally accepted, or not.

3. More than 5 submittals submitted within one week will be prioritized by the Contractor and additional time will be required for the review process. An additional 7 days will be added to review time for each submittal submitted over the 5 submittal limit.

B. Time in Excess of Specified:

1. The CO may extend the contract completion date to allow additional time for completing work affected by excess review time.

a. The time extension will be to the extent that excess review time caused delay to the contract completion date.

b. The time extension will not exceed the time used in excess of the specified number of days for review of submittals or resubmittals.

c. Concurrent days of excess review time resulting from review of two or more separate submittals or resubmittals will be counted only once in extending the contract completion date.

2. No time extension will be allowed if the Contractor fails to make complete approval submittals in sequence and within time periods specified.

3. Adjustment for delay will be made only to the extent that:

a. Approval was required under the contract, and

b. Requests for approval were properly and timely submitted and were approved.

4. Adjustment will be subject to terms of paragraphs (b) and (c) of the clause at FAR 52.242-14, Suspension of Work, however, no such delay shall be deemed to be a “suspension order” as the term is used in that clause.

01 33 00 - 5

C. Return of Submittals:

1. Return of submittals will be by CDMS response or hard copy, as applicable.

2. Action Submittals: One set of submittals required for action will be returned either approved, conditionally approved, or not approved.

a. Revise and resubmit submittals not approved.

b. Do not change designs without approval of the CO after drawings, documentation, and technical data have been approved.

3. Tracking:

a. Show changes and revisions with revision date.

b. Describe reasons for significant changes in transmittal letter.

c. Resubmit returned submittals within 14 days after receiving the comments, unless otherwise specified.

d. Requirements for initial submittals apply to resubmittals.

4. Do not change designs without approval of the CO after approval drawings, documentation, and technical data have been approved.

1.06 HARD COPY TRANSMITTALS

A. Addresses for codes listed in Table 01 33 00A - List of Submittals:

1. Addresses to be furnished upon Notice to Proceed.

B. When “No. of sets to be sent to” is 0, send a copy of transmittal letter to that office.

C. Submittals required by the specifications, but not listed in Table 01 33 00A - List of Submittals:

1. Submit in accordance with this section.

2. Submit to Construction Engineer, unless otherwise specified.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

01 33 00 - 6

Table 01 33 00A - List of Submittals

** CE indicates Construction Engineer, OGR indicates Onsite Government Representative, RE indicates Regional Engineer, PM indicates Project Manager, CVO indicates Central Valley Operations Office, and TSC indicates Technical Service Center, COR indicates Contracting Officer’s Representative

RSN

Clause or

Section Title

Submittals required

Due date or delivery time

Re-spon-sible code

No. of sets to be sent to:

CE OGR RE PM CVO TSC COR

01 14 10-1 Use of Site Land Use and Landscape Rehabilitat ion Plan

At least 28 days before beginning on-site work.

CE 3 1 CDMS

01 14 30-1 Outages Outage Request

At least 14 days before date of proposed outage

CE 3 1 CDMS

01 31 30-1 Contract Document Management System

Approval Data

Within 7 days of Award

CE 3 0 1 1 0 0 CDMS

01 31 30-2 Contract Document Management System

Final Data Within 14 days of completion of work

CE 3 0 1 1 0 0 CDMS

01 32 10-1 Construction Program

Representa tive Informatio n

Within 7 days after receipt of Notice of Award

CE 3 1 CDMS

01 32 10-2 Construction Program

Baseline

Within 7 days after receipt of Notice to Proceed

CE 3 1 CDMS

01 32 10-3 Construction Program

Updated

With monthly requests for progress payments.

CE 3

1 CDMS

01 32 10-4 Construction Program

Time Impact Analysis

Within 28 days after the CO directs a contract change with schedule impacts.

CE 3 1 CDMS

01 33 00 - 7

RSN

Clause or

Section Title

Submittals required

Due date or delivery time

Re-spon-sible code

No. of sets to be sent to:

CE OGR RE PM CVO TSC COR

01 35 10-1 Safety Data Sheets

Complete LHM and

M\SDS

Submitted and accepted at least 14 days before jobsite delivery of hazardous material

CE 3 1 CDMS

01 35 10-2 Safety Data Sheets

Updated LHM and

SDS

At least 14 days before jobsite delivery of hazardous material not previously listed

CE 3 1 CDMS

01 35 20-1 Safety and Health

Safety Program

At least 21 days before commencing on site construction activities.

CE 3 1 CDMS

01 35 20-2 Safety and Health

Monthly Accident Summary Report

With monthly requests for progress payments.

CE 3 1 CDMS

01 35 30-1 Contractor‘s Onsite Safety Personnel

Resume Prior to employment.

CE 3 1

CDMS

01 35 30-2 Contractor’s Onsite Safety Personnel

Safety Inspection Reports

Weekly CE 3 1

01 74 00-1 Cleaning and Waste Management

Waste Production and Disposal Records

At least 28 days before starting onsite work

CE 3 1 CDMS

01 74 00-2 Cleaning and Waste Management

Hazardous Wastes Manifest

Within 7 days of hazardous waste disposal

CE 3 1 CDMS

01 74 00-3 Cleaning and Waste Management

Environme ntal Consultant Resume

At least 35 days before beginning environmental assessment.

01 33 00 - 8

RSN

Clause or

Section Title

Submittals required

Due date or delivery time

Re-spon-sible code

No. of sets to be sent to:

CE OGR RE PM CVO TSC COR

01 74 00-4 Cleaning and Waste Management

Environme ntal Site Assessmen t

Within 14 days after completion of work or as deemed necessary by the CO.

CE 3 1 CDMS

01 78 30-1 Project Record Documents

Final As- Built Drawings / Record of Materials

Within 28 days of final on‐site testing

CE 3 1 CDMS

02 83 33-1 Removal and Disposal of Equipment with Coatings Containing Heavy Metals

Resumes At least 28 days before disturbing existing coatings or equipment.

CE 3 1 CDMS

02 83 33-2 Removal and Disposal of Equipment with Coatings Containing Heavy Metals

Written Complianc e Program for Worker Protection

At least 28 days before disturbing existing coatings or equipment.

CE 3 1 CDMS

02 83 33-3 Removal and Disposal of Equipment with Coatings Containing Heavy Metals

Containme nt System Plan with Complianc e System Plan

At least 28 days before disturbing existing coatings.

CE 3 1 CDMS

02 83 33-4 Removal and Disposal of Equipment with Coatings Containing Heavy Metals

Certificate of Disposal

Within 14 days after completion of disposal work.

CE 3 1 CDMS

02 83 33-5 Removal and Disposal of Equipment with Coatings Containing Heavy Metals

Post Environme ntal Sampling

Within 14 days after completion of sampling.

CE 3 1 CDMS

02 84 40-1 Removal and Disposal of Polychlorinat ed Biphenyls (PCBs)

PCB

Removal and Disposal Plan

At least 28 days before removing equipment containing PCBs

01 33 00 - 9

RSN

Clause or

Section Title

Submittals required

Due date or delivery time

Re-spon-sible code

No. of sets to be sent to:

CE OGR RE PM CVO TSC COR

02 84 40-2 Removal and Disposal of Polychlorinat ed Biphenyls (PCBs)

Certificates and Reports

Within 14 days after

PCB

completion of removal

CE 3 1 CDMS

03 30 00-1 Cast-in Place Concrete

Concrete Mix Design

At least 21 days prior to placing concrete

CE 3 1 CDMS

03 30 00-2 Cast-in Place Concrete

Transform er Concrete Pad Design

At least 21 days prior to placing concrete

RE 3 1 CDMS

03 30 00-3 Cast-in Place Concrete

Engine- Generator Concrete Pad Design

At least 21 days prior to placing concrete

RE 3 1 CDMS

03 62 20-1 Grouting Mortar for Equipment and Metalwork

Packaged Nonshrink Grout Data

At least 21 days before grout installation

CE 3 1 CDMS

05 12 73-1 Adhesive- Anchored Bolts

Product Data and Instruction s

At least 35 days before installation

CE 3 1 CDMS

05 12 73-2 Adhesive- Anchored Bolts

Shop Drawings

At least 35 days before installation

CE 3 1 CDMS

05 12 73-3 Adhesive- Anchored Bolts

Structural Calculation s and Anchorage Details

At least 35 days before installation

CE 3 1 CDMS

26 05 02-1 Basic Electrical Materials and Methods

Equipment Layout Plan and Coordinati on Approval Drawings

Within 35 days after receipt of Notice to Proceed

RE 3 1 1

and

CDMS

CDMS

26 05 10-1 Conductors and Cables

Approval Data

Within 35 days after receipt of Notice to Proceed

RE 3 1 1

and

01 33 00 - 10

RSN

Clause or

Section Title

Submittals required

Due date or delivery time

Re-spon-sible code

No. of sets to be sent to:

CE OGR RE PM CVO TSC COR

26 05 10-2 Conductors and Cables

Field Test Reports

Within 35 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

26 05 20-1 Grounding and Bonding

As-Built Drawings

Within 28 days of final on‐site testing

RE 3 1 1

and

CDMS

CDMS

26 05 20-2 Grounding and Bonding

Test Reports

Within 28 days of final on‐site testing

RE 3 1 1

and

CDMS

CDMS

26 05 33-1 Electrical Conduit

Approval Data

Within 35 days after receipt of Notice to Proceed

RE 3 1 1

and

CDMS

CDMS

26 05 33-2 Electrical Conduit

As-Built Drawings

Within 28 days of final on-site work

RE 3 1 1

and

CDMS

CDMS

26 09 14-1 Current Transformers

Approval Data

Within 35 days after receipt of Notice to Proceed

RE 3 1 1

and

CDMS

CDMS

26 09 14-2 Current Transformers

Field Test Reports

Within 35 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

26 09 14-3 Current Transformers

Operation and Maintenan ce (O&M) Instruction Books

Within 28 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

26 09 14-4 Current Transformers

Final Drawings

Within 35 days of final on-site testing at each powerplant

RE 3 1 1

and

CDMS

CDMS

26 22 16-1 Power Transformer

Approval Data

Within 35 days after receipt of Notice to Proceed

RE 3 1 1

and

CDMS

CDMS

26 22 16-2 Power Transformer

Factory Test Reports

Within 14 days after Factory Tests

RE 3 1 1

and

01 33 00 - 11

RSN

Clause or

Section Title

Submittals required

Due date or delivery time

Re-spon-sible code

No. of sets to be sent to:

CE OGR RE PM CVO TSC COR

26 22 16-3 Power Transformer

Operation and Maintenan ce (O&M) Instruction Books

Within 28 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

26 22 16-4 Power Transformer

Field Test Reports

Within 35 days of final on-site testing at each powerplant

RE 3 1 1

and

CDMS

CDMS

26 22 16-5 Power Transformer

Final Drawings

Within 35 days of final on-site testing at each powerplant

RE 3 1 1

and

CDMS

CDMS

26 25 13-1 Removing and Modifying Existing Equipment

Removal Drawings and Plans

At least 28 days before commencing on site construction activities.

RE 3 1 1

and

CDMS

CDMS

26 25 13-2 Removing and Modifying Existing Equipment

Modificati on Drawings and Plans

At least 28 days before commencing on site construction activities.

RE 3 1 1

and

CDMS

CDMS

26 25 13-3 Removing and Modifying Existing Equipment

Modificati on Drawings and Plans- 480V

At least 28 days before commencing on site construction activities.

RE 3 1 1

and

CDMS

CDMS

26 25 43-1 600-Volt Enclosed Non- Segregated Phase Bus

Approval Drawings and Data

Within 35 days after receipt of Notice to Proceed

RE 3 1 1

and

CDMS

CDMS

26 25 43-2 600-Volt Enclosed Non-

Factory Test Reports

Within 14 days after Factory Tests

RE 3 1 1

and

01 33 00 - 12

RSN

Clause or

Section Title

Submittals required

Due date or delivery time

Re-spon-sible code

No. of sets to be sent to:

CE OGR RE PM CVO TSC COR

26 25 43-3 600-Volt Enclosed Non-

Operation and Maintenan ce (O&M) Instruction Books

Within 28 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

26 25 43-4 600-Volt Enclosed Non- Segregated Phase Bus

Field Test Reports

Within 28 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

26 25 43-5 600-Volt Enclosed Non- Segregated Phase Bus

Final Drawings

Within 35 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

26 28 30-1 Enclosed Circuit Breakers

Approval Drawings and Data

Within 35 days after receipt of Notice to Proceed

RE 3 1 1

and

CDMS

CDMS

26 28 30-2 Enclosed Circuit Breakers

Factory Test Reports

Within 14 days after Factory Tests

RE 3 1 1

and

CDMS

CDMS

26 28 30-3 Enclosed Circuit Breakers

Operation and Maintenan ce (O&M) Instruction Books

Within 28 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

26 28 30-4 Enclosed Circuit Breakers

Field Test Reports

Within 35 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

26 28 30-5 Enclosed Circuit Breakers

Final Drawings

Within 35 days of final on-site testing at each powerplant

RE 3 1 1

and

CDMS

CDMS

26 32 10-1 Engine- Generator Set

Approval Drawings and Data

Within 35 days after receipt of Notice to Proceed

RE 3 1 1

and

CDMS

CDMS

26 32 10-2 Engine- Generator Set

Final Drawings and Data

Within 35 days of final on-site testing

RE 3 1 1

and

01 33 00 - 13

RSN

Clause or

Section Title

Submittals required

Due date or delivery time

Re-spon-sible code

No. of sets to be sent to:

CE OGR RE PM CVO TSC COR

26 32 10-3 Engine- Generator Set

Field Test Reports

Within 35 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

28 46 16-1 Transformer Monitor

Approval Data and Drawings

Within 35 days after receipt of Notice to Proceed

RE 3 1 1

and

CDMS

CDMS

28 46 16-2 Transformer Monitor

Installatio n Plan

Within 28 days before installation

RE 3 1 1

and

CDMS

CDMS

28 46 16-3 Transformer Monitor

Field Testing Plan

Within 28 days before testing

RE 3 1 1

and

CDMS

CDMS

28 46 16-4 Transformer Monitor

Field Testing Results

Within 35 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

28 46 16-5 Transformer Monitor

Operations and Maintenan ce Instruction Manual

Within 35 days of final on-site testing

RE 3 1 1

and

CDMS

CDMS

28 46 16-6 Transformer Monitor

Final Drawings

Within 35 days of final on-site testing at each powerplant

RE 3 1 1

and

CDMS

CDMS

28 46 16-7 Transformer Monitor

Training Materials

Within 28 days of the training at each powerplant

RE 3 1 1

and

CDMS

CDMS

32 12 22-1 Asphaltic Concrete Pavement

Mix Design Data

At least 28 days before commencing on site construction activities.

RE 3 1 1

and

CDMS

CDMS

32 12 22-2 Asphaltic Concrete Pavement

Certificatio ns

At least 28 days before commencing on site construction activities.

RE 3 1 1

and

01 33 00 - 14

Current Transformers 26 09 14 - 1

SECTION 26 09 14

CURRENT TRANSFORMERS

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Current Transformers:

1. Payment: Include cost in the lump sum prices offered in the Schedules for Current Transformers.

1.02 REFERENCE STANDARDS

A. Institute of Electrical and Electronic Engineers (IEEE)

1. IEEE C2-2012 National Electrical Safety Code (NESC)

2. IEEE C57.13-2008 Standard Requirements for Instrument Transformers

3. IEEE C57.13.1-2006 Guide for Field Testing of Relaying Current Transformers

4. IEEE C57.13.3-2005 Guide for Grounding of Instrument of Instrument Transformer Secondary Circuits and Cases

B. National Fire Protection Association (NFPA)

1. NFPA 70-2014 National Electric Code (NEC)

1.03 PERFORMANCE REQUIREMENTS

A. Completely assembled and installed transformers shall operate as specified without derating under following conditions:

1. Elevation: 650 ft.

2. Temperature Range: 20 degrees F to 150 degrees F.

3. Installed within isophase bus enclosure on the primary side of the Spring Creek Powerplant located outside on transformer deck.

26 09 14 - 2

1.04 SUBMITTALS

A. Submit the following in accordance with Section 01 33 00 - Submittals and 01 33 26 - Electrical Drawings and Data.

B. RSN 26 09 14-1, Approval Data:

1. Equipment layout drawings, schematic wiring diagram drawings, and manufacturer’s catalog data.

C. RSN 26 09 14-2, Field Test Reports:

1. Provide in accordance with Section 01 33 26 - Electrical Drawings and Details.

D. RSN 26 09 14-3, Operation and Maintenance (O&M) Instruction Books:

1. Provide in accordance with Section 01 33 26 - Electrical Drawings and Details

2. Installation and operating instructions, maintenance, troubleshooting and repair procedures and technical literature pertaining to all components or instruments provided.

E. RSN 26 09 14-4, Final Drawings:

1. Current transformer and location drawings on the low voltage bus.

2. Shop drawings.

3. Provide computer drawing files on CD-ROM disc in AutoCAD (*.dwg) 2014 version or newer.

PART 2 PRODUCTS

2.01 CURRENT TRANSFORMERS (CTS)

A. Dimensions of CTs provided during the original construction of the powerplant ARE not available. Expect to verify all dimensions in the field. Refer to specification drawings 416-D1382, 416-D2662, and 416-D-2761 in this specification. The following is provided for bidding purposes only.

B. Provide and install three current transformers within isolated phase bus of estimated 17.5-inch outside diameter.

C. Install one current transformer per phase in feeder bus to Spring Creek transformer KRB to be replaced as described in section 26 22 16 of this specification.

26 09 14 - 3

D. In accordance with IEEE C57.13.

E. Ratings for medium voltage CTs:

1. Type: Single-phase, 60 hertz, single-ratio, outdoor type.

2. Maximum system voltage: 15.5 kilovolts.

3. Basic Insulation Level (BIL): 110 kilovolts.

4. Ratio, primary to secondary: 400:5 amperes.

5. Relaying accuracy class: C200

6. Connection: Wye

F. Construction:

1. Expect to reuse existing secondary junction box; shorting terminal blocks and ground terminals.

2. Refer to 51 00 01 Photographs: Spring Creek Powerplant photographs 2 and 3 for existing installation.

G. Nameplate: Mount on current transformer or as approved by OGR.

H. Install a set of three CTs with the following rating on the secondary side of each KRC transformer (Trinity, Spring Creek and JF Carr) located on each new low voltage bus.

Refer to specification Sections 28 46 16 Transformer Monitor and 26 25 43 600V Non- Segregated Bus.

I. Rating of low voltage CTs:

1. Type: Single-phase, 60 Hertz, single-ratio, outdoor type.

2. Maximum system voltage: 600 volts.

3. Basic Insulation Level (BIL): 45 kilovolts.

4. Ratio, primary to secondary: 1200:5 amperes.

5. Relaying accuracy class: C400

6. Connection: Wye

J. Test Switches:

26 09 14 - 4

1. FTL Type manufactured by Secucontrol, 2873 Duke Street, Alexandria, VA 22314; or equal, with the following essential characteristics:

a. Rating: 125VDC, 30 Amperes.

b. Semi-flush panel mount.

c. Capable of being wired behind access panel.

d. Barriers between terminals.

e. Black opaque cover.

2. Provide disconnect pins for isolation to permit secondary injection using banana jacks on the front side of the test switch. Separate plug-in test kit is not required.

3. Pole Configuration:

a. For potential sources and output contacts, provide 10 potential places with non-shorting blade.

b. For current and potential sources, provide the configuration of

P,P,P,CC,C-C,C-C,P:

1) Three potential poles with non-shorting blade.

2) Three pairs of shorting current poles, (make before break), with test jack and blade.

3) One potential pole with non-shorting blade.

2.02 CONDUIT AND CABLES

A. Use existing cable path to be verified in field. Expect to reuse existing conduit for signals designated SSQ0, SSQA, SSQB, and SSQC.

B. Provide new cable 1QRB-CSA5R connecting station service transformer KRB CT’s to terminal block locations that supply CT signals to existing GE 51 relay located in section 5R of main control board CSA. Signals are designated SSQ0, SSQA, SSQB, and SSQC as shown in the upper right area of drawing 416-D-1382 and also the upper left area of drawing 416-D-2761. Expect to land new 10 AWG 5/C cable up to terminal block H, shown on drawing 416-D-2662.

C. Cable must be Type TC and rated for wet locations. Use Southwire, Type TC, Control Cable-XHHW/CPE or approved equal. Expect to bid for up to 600 feet of new control cable.

26 09 14 - 5

D. Proved new 10 AWG 5/C cable and corresponding conduit, from each new current transformer to its corresponding transformer monitoring device, located on each KRC transformer (Trinity, Spring Creek, JF Carr).

1. Cable must be Type TC and rated for wet locations. Use Southwire, Type TC, Control Cable-XHHW/CPE or approved equal.

E. Provide test switch for inputs and outputs to and from the transformer monitoring device. At a minimum individual test switches are required for:

1. All Current Transformer circuits.

2. All Potential Transformer circuits.

3. All output contacts.

2.03 FINISH

A. Manufacturer’s standard finish.

PART 3 EXECUTION

3.01 DEMOLITION

A. Remove existing QRB current transformers and signal cable from existing CT’s to terminal block H in section 5R of main control board CSA.

3.02 INSTALLATION

A. In accordance IEEE C2, IEEE C57.13.3, NFPA 70, and these specifications.

B. Install as indicated on drawings and as directed by OGR.

C. Route control wiring from CTs to station service overcurrent relay terminal block H on main control board CSA in control room.

D. Ground and bond transformers to existing UFERs (concrete-encased grounding electrodes) of the powerplant grounding system in accordance with Section 26 05 20 - Grounding and Bonding.

E. Government will recalibrate relay to complete installation

3.03 CONTRACTOR FIELD QUALITY TESTING

A. Provide COR 10 days' notice of field testing. Report field testing results must be witnessed by OGR.

26 09 14 - 6

B. Test each CT in accordance with IEEE C57.13.1 and Reclamation Facilities Instructions Standards and Techniques (FIST) 3-8.

1. Ratio test.

2. Excitation test.

3. Internal resistance test.

4. Polarity, phasing and connection tests.

5. Single point to ground test.

6. Insulation resistance test.

7. Burden test.

8. Burden comparison.

9. Verify signal at the protective relay.

C. Provide written report for RSN 26 09 14-2, Results of Field Testing.

Power Transformers 26 22 16 - 1

SECTION 26 22 16

POWER TRANSFORMERS

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Power Transformers:

1. Price:

a. Includes cost of extra materials; special tools.

b. Includes cost of labor, material and equipment required for the power transformer.

c. Includes cost of labor, material and equipment required for the neutral of the power transformer.

d. Includes cost of labor, material and equipment required for meters, switches and relays for the power transformer assembly.

e. Includes cost of labor, material and equipment required for the NEMA 3R enclosure of the power transformer.

f. Includes cost of labor, material and equipment required for nameplates, accessory devices, fabrication and finish of the power transformer.

g. Includes cost of labor, material and equipment required for rigid steel conduit and cables internal to the power transformer.

h. Includes cost of labor, material and equipment required for connections to high-voltage (HV) and low-voltage (LV) circuits for the power transformer assembly.

i. Includes cost of contractor’s source quality testing.

j. Includes cost of furnishing and installing the power transformer and its corresponding equipment.

k. Includes cost of labor, material and equipment required to make electrical connections to equipment and devices.

l. Includes cost of labor and equipment required to program and calibrate all new equipment and any existing interface equipment.

26 22 16 - 2

m. Include cost of furnishing and installing Transformer Monitoring Devices.

B. Payment: Include cost in the lump sum prices offered in the Schedules for Power Transformer(s).

1.02 RELATED SECTIONS

A. Section 26 25 13 - Removing and Modifying Existing Equipment

B. Section 03 30 00 - Cast-In-Place Concrete

C. Section 26 05 02 - Basic Electrical Materials and Methods

D. Section 26 05 10 - Conductors And Cables

E. Section 26 05 33 - Electrical Conduit

F. Section 28 46 16 - Transformer Monitor

1.03 REFERENCE STANDARDS

A. Use current version unless noted.

B. American National Standards Institute (ANSI; also ANSI/IEEE)

1. ANSI C57.12.01 Standard General Requirements for Dry-Type Distribution and Power Transformers Including Those with Solid Cast and/or Resin-Encapsulated Windings.

2. ANSI C57.12.51 Requirements for Ventilated Dry-Type Power Transformers, 501 KVA and Larger, Three-Phase with

High-Voltage 601 to34 500 Volts, Low Voltage 208Y/120 to 4160

3. ANSI C57.12.91 Test Code for Dry-Type Distribution and Power Transformer

4. ANSI C57.98 Impulse Tests, Guide for Transformer

C. Institute of Electrical and Electronic Engineer (IEEE)

1. IEEE C2-2012 National Electric Safety Code (NESC)

2. IEEE C57.12.56™ Standard Test Procedure for Thermal Evaluation of Insulation System for Ventilated Dry-Type Power and

Distribution Transformer

3. IEEE C57.12.59™ Guide for Dry-Type Transformer Through-Fault Current Duration

26 22 16 - 3

4. IEEE C57.12.70™ Terminal Markings and Connections for Distribution and Power Transformer

5. IEEE C57.12.94™ Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type General Purpose Distribution and Power Transformer

6. IEEE C57.12.96™ Guide for Loading Dry-Type Distribution and Power Transformers

D. International Electrical Testing Association, Inc. (NETA)

1. NETA ATS-2013 Acceptance Testing Specifications for Electrical Power Distribution Equipment and Systems

E. International Code Council (IBC)

1. IBC-2012 International Building Code

F. National Electrical Manufacturers Association (NEMA)

1. NEMA ST- 20 Dry Type Transformers for General Applications

2. NEMA ICS 5-2000 Industrial Control and Systems: Control Circuit and Pilot Pilot Devices

3. NEMA ST 20-1997 Dry Type Transformers for General Applications

4. NEMA WC 3-1992 Rubber-Insulated Wire and Cable for the Transmission and Distribution of Natural Energy

G. National Fire Protection Association (NFPA)

1. NFPA 70-2014 National Electrical Code (NEC)

H. Underwriters Laboratories, Inc. (UL)

1. UL 1561 Standard for Dry-Type General Purpose and Power

Transformers; Current Edition, Including All Revisions.

1.04 SUBMITTALS

A. Submit the following in accordance with Section 01 33 00 - Submittals and Section 01 33 26 - Electrical Drawings and Data.

B. RSN 26 22 16-1, Approval Data:

1. Manufacturer’s technical data.

2. Transformer outline, nameplate, connection diagrams, and shop drawings.

C. RSN 26 22 16-2, Factory Test Reports:

26 22 16 - 4

1. Certified test reports.

D. RSN 26 22 16-3, Operation and Maintenance (O&M) Instruction Books:

1. Provide in accordance with Section 01 33 26 - Electrical Drawings and Details

2. Installation and operating instructions, maintenance, troubleshooting and repair procedures and technical literature pertaining to all components or instruments provided.

E. RSN 26 22 16-4, Field Test Reports:

1. Provide in accordance with Section 01 33 26 - Electrical Drawings and Details.

F. RSN 26 22 16-5, Final Drawings:

1. Transformer installation and location drawings.

2. Shop drawings.

3. Provide computer drawing files on CD-ROM disc in AutoCAD (*.dwg) 2014 version or newer.

1.05 QUALITY ASSURANCE

A. The manufacturer shall be ISO 9001 or 9002 certified.

B. The manufacturer shall have specialized experience in the design, manufacture and assembly of dry-type power transformer for a minimum of 20 years.

C. The power transformers at each location shall meet all applicable seismic requirements of the 2012 International Building Code (IBC).

1. Judge Francis Carr Powerplant and Spring Creek Powerplant are located in Shasta County, California.

2. Trinity Powerplant is located in Trinity County, California.

D. The three phase rotation delivered to the primary of existing station service transformers varies with location and transformer. Refer to specification drawing 416-D-755, 416-D-785, and 416-D-4701 Single Line Drawings for the Trinity, JF Carr and Spring Creek Powerplants respectively.

1.06 REGULATORY REQUIREMENTS

A. Contractor shall be licensed as classification type C-10 by the California Contractors State License Board (CLSB).

B. The power transformer shall be listed by Underwriters Laboratories and shall bear a UL label.

26 22 16 - 5

1.07 DELIVERY, STORAGE, AND HANDLING

A. Deliver, store, protect, and handle products in accordance with recommended practices listed in manufacturer's Installation and Maintenance Books.

B. Handle transformer in accordance with manufacturer's written instructions to avoid damaging equipment, installed devices, and finish. Lift only by installed lifting provisions.

C. Inspect and report any damage to OGR immediately in writing.

1.08 FIELD MEASUREMENTS

A. Contractor is required to make all necessary field measurements to ensure that new power transformer designed and provided shall fit in existing space, shall accommodate existing high voltage (HV) isolated phase bus and low voltage (LV) bus ducts, and shall be in full compliance with minimum required clearances recommended by the manufacturer and specified in National Electrical Code.

B. Refer to Section 26 25 13 - Removing and Modifying Existing Equipment.

PART 2 PRODUCTS

2.01 GENERAL:

A. Type: Dry type, self-cooled, pad mount power transformer that is ABB Vacuum Pressure Impregnated (VPI) Secondary Unit Substation type or equal. Refer to existing JF Carr KRB transformer photographs 1, 2 and 10 in section 51 00 03 Photographs: JF Carr Powerplant in this specification.

B. Elevation:

1. Trinity Powerplant: 1950 feet

2. Judge Francis Carr Powerplant: 1250 feet.

3. Spring Creek Powerplant: 650 feet

C. Each of the five transformers shall be vacuum pressure impregnated (VPI) construction and shall be mounted in a ventilated outdoor enclosure (NEMA 3R). They shall be designed and manufactured in accordance with ANSI/IEEE C57.12.01 (2008).

D. Each transformer core shall be constructed of high-grade non-aging silicon steel laminations with high magnetic permeability, low hysteresis and eddy current losses.

Magnetic flux density is to be kept well below the saturation point. Core construction shall include mitered joints to keep core losses, excitation current and noise level at a minimum.

26 22 16 - 6

E. Each transformer coil shall be impregnated using the VPI process. Coils shall be pre-heated. Individual windings shall be pressure impregnated with polyester resin/varnish such that the resin/varnish penetrates and seals the windings. The VPI process shall effectively impregnate the entire core and coil assembly which results in a unit which is virtually impermeable to moisture, dust, dirt, salt air and other industry contaminants.

F. Vibration isolation pads shall be provided to isolate the core and coil assembly from the casing.

G. Provide and install VIB-X-PAD by VIBRASCIENCES INCORPORATED or approved equal.

H. At each of the TRD powerplants (Trinity, JF Carr and Spring Creek), the existing high side current transformers (CTs) are located in the isolated phase bus (IPB) which is the High Voltage bus to the transformer KRB. These CTs feed existing overcurrent relays (GE 51) which provide protection to the existing KRB transformer.

I. The existing Trinity CTs and corresponding relays will not be affected by the Trinity KRB transformer replacement, will be reused for the new Trinity KRB transformer and are not part of this project.

J. The new Spring Creek CTs shall be furnished and installed on the primary side of the Spring Creek KRB transformer as described in specification Section 26 09 14 Current Transformers.

K. Design, furnish, install and test high voltage (HV) connections to the primary side of the new transformers (KRC); Trinity, JF Carr and Spring Creek Powerplants. Refer to specification Section 26 25 13, 3.02 MODIFICATION OF STATION SERVICE

TRANSFORMERS HV AND LV SIDE CONNECTIONS.

2.02 RATING:

A. The KRB transformer at Trinity Powerplant and the KRB and KRC transformers at Spring Creek Powerplant shall be rated as follows:

1. 750 kVA

2. Three phases

3. Primary voltage (HV):

a. 13.8 kV, 60 Hz, delta connection

b. Basic impulse level (BIL): 110 kV

c. Taps: Two 2½ percent full-capacity above normal and two 2½ percent full-capacity below normal, on the high voltage winding.

26 22 16 - 7

d. HV bushings located on top of the transformer, similar configuration as the existing bushings shown on specification drawing 416-M-208-000046- 050, Y1000-1, for connecting with existing isolated phase bus ducts.

4. Secondary voltage (LV):

a. 480/277 VAC, 60 Hz, Wye connection

b. Basic impulse level (BIL): 45kV

c. LV bushings (if applicable) located on the right when facing the transformer front, similar configuration as the existing bushings shown on drawing 416-M-000046-054, Y1001, for connecting with existing bus ducts.

d. Per the specification drawings, the low voltage bus duct interface will include bus to ends with a throat.

e. Existing low voltage bus connection into existing switchgear is shown in specification photographs and drawings. The contractor shall field verify all measurements and connections.

f. Low voltage side enclosed circuit breaker (52C) is required for each of the KRB transformers (total of two circuit breakers). Refer to Section 26 28 30 - Enclosed Circuit Breakers. This breaker is in a separate enclosure from the transformer.

5. The coils (HV and LV conductor windings) shall be wound with copper conductors.

6. All insulating materials shall be in accordance with ANSI/IEEE C57.12.01 for 220°C UL insulation system.

7. Transformer average temperature raise: 115°C above a 40°C maximum, 30°C average ambient. The transformer shall not exceed the specified temperature rise when it is operated continuously at full name plate rating.

8. Space heaters and corresponding thermostat are required for dry type transformers located outdoors. This is especially important if the transformer is turned off for any length of time.

9. Sound level shall not exceed the maximum specified by ANSI/IEEE C57.12.01 for applicable KVA size of dry-type transformer.

10. UL listed.

11. Impedance Rating: Provide impedance rating of 5.84% with +/- 7.5% tolerance.

12. Transformer Neutral: The three new transformers shall each have a neutral ground which will allow grounding external from each of the transformers.

B. The KRC transformer at Trinity Powerplant and the KRC transformer at JF Carr Powerplant shall be rated as follows:

26 22 16 - 8

1. 750 kVA

2. Three phases

3. Primary voltage (HV):

a. 12 kV, 60 Hz, delta connection

b. Basic impulse level (BIL): 110 kV

c. Taps: Two 2½ percent full-capacity above normal and two 2½ percent full-capacity below normal, on the high voltage winding.

d. HV bushings located on top of the transformer. The contractor shall field verify all connections.

4. Secondary voltage (LV):

a. 480/277 VAC, 60 Hz, Wye connection

b. Basic impulse level (BIL): 45 kV

c. LV bushings (if applicable) located on the right when facing the transformer front, similar configuration as the existing bushings shown on drawing 416-M-000046-054, Y1001, for connecting with existing bus ducts.

d. Per the specification drawings, the low voltage bus duct interface will include bus to ends with a throat.

5. The coils (HV and LV conductor windings) shall be wound with copper conductors.

6. All insulating materials shall be in accordance with ANSI/IEEE C57.12.01 for 220°C UL insulation system.

7. Transformer average temperature raise: 115°C above a 40°C maximum, 30°C average ambient. The transformer shall not exceed the specified temperature rise when it is operated continuously at full name plate rating.

8. Space heaters and corresponding thermostat are required for dry type transformers located outdoors. This is especially important if the transformer is turned off for any length of time.

9. Sound level shall not exceed the maximum specified by ANSI/IEEE C57.12.01 for applicable KVA size of dry-type transformer.

10. UL listed.

11. Impedance Rating: Provide impedance rating of 5.84% with +/- 7.5% tolerance.

12. Transformer Neutral: the two new transformers shall have a neutral ground which will allow grounding external from each of the transformers.

C. Provide five transformers that meet the Department of Energy Efficiency Standard based on the year of manufacture.

26 22 16 - 9

• https://www.regulations.gov

D. Year of manufacture shall be 2016 or greater.

2.03 ENCLOSURE:

A. NEMA 3R

B. The contractor shall verify the existing space for the two new KRB transformers. Refer to the following resources:

1. 51 00 01 Photographs Trinity Powerplant

2. 51 00 02 Photographs Judge Francis Carr Powerplant

3.…