W912EF21R0010-0004 w amended specifications.pdf

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

The purpose for this amendment is to update technical specifications section: 26 05 00.00 26 BASIC ELECTRICAL MATERIALS AND

METHODS.

See summary of changes for further details.

All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

1 2

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

16C. DATE SIGNED

BY 16-Jul-2021

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 W912EF21R0010

X 9B. DATED (SEE ITEM 11)

11-Jun-2021

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 is extended, X 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 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

15-Jul-2021

CODE

USAED, WALLA WALLA - CONTRACTING DIV.

LEANNE WALLING

201 N. THIRD AVENUE

WALLA WALLA WA 99362-1876

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

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912EF21R0010

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE (SF 30)

The following have been added by full text:

AMENDMENT 0004

1. Revised the following Specifications (See revised specification for details):

a. SECTION 26 05 00.00 26 BASIC ELECTRICAL MATERIALS AND METHODS

Added Paragraph 3.3 “PAINTING”.

(End of Summary of Changes)

Lower Monumental Transformer T2 Leak & Bushing Repair W912EF21R0010

PROJECT TABLE OF CONTENTS

DI VI SI ON 00 - PROCUREMENT AND CONTRACTI NG REQUI REMENTS

00 01 15.00 28 LIST OF DRAWINGS

DI VI SI ON 01 - GENERAL REQUI REMENTS

01 00 00.00 28 GENERAL REQUIREMENTS

01 11 00.00 28 SUMMARY OF WORK

01 11 01.00 28 SUPPLEMENTARY REQUIREMENTS

01 14 00.10 28 PROJECT SITE RESTRICTIONS

01 14 00.90 28 INTEGRATING ANTITERRORISM (AT) AND OPERATIONS SECURITY

(OPSEC)

01 22 00.00 28 MEASUREMENT AND PAYMENT

01 32 16.00 28 SMALL PROJECT CONSTRUCTION PROGRESS SCHEDULES

01 33 00 SUBMITTAL PROCEDURES

01 35 29.10 28 GOVERNMENTAL SAFETY REQUIREMENTS

01 42 00 SOURCES FOR REFERENCE PUBLICATIONS

01 45 01.00 28 RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE (RMS CM)

01 45 04.00 28 CONTRACTOR QUALITY CONTROL

01 51 00.00 28 TEMPORARY UTILITIES

01 55 10.00 28 CONTRACTOR WORK, ACCESS AND STORAGE AREAS

01 57 20.00 28 ENVIRONMENTAL PROTECTION

01 78 00.00 28 CLOSEOUT SUBMITTALS

01 78 23.00 28 OPERATION AND MAINTENANCE DATA

DI VI SI ON 26 - ELECTRI CAL

26 05 00.00 26 BASIC ELECTRICAL MATERIALS AND METHODS

26 05 19.00 26 INSULATED WIRE AND CABLE

DI VI SI ON 48 - ELECTRI CAL POWER GENERATI ON

48 19 23.20 26 CLASS II GSU POWER TRANSFORMER BUSHING & OIL LEAK REPAIR

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 1 g4ecctgh Line Amendment-0004 - Section 26 05 00.00 26

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PROJECT TABLE OF CONTENTS Page 2

Amend-0004

SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

SECTION 26 05 00.00 26

BASIC ELECTRICAL MATERIALS AND METHODS

PART 1 GENERAL

1.1 DESCRIPTION OF WORK

1.2 REFERENCES

1.3 SUBMITTALS

1.4 GENERAL REQUIREMENTS

1.4.1 Materials, Equipment and Installation

1.4.2 Standard Products

1.4.3 Corrosion Prevention

1.4.3.1 General

1.4.3.2 Fastenings and Fittings

1.4.3.2.1 Corrosion-Resisting Materials

1.5 DELIVERY, STORAGE AND HANDLING

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.1.1 Compliance with Standards

2.1.2 Standard Products

2.2 BOXES AND ENCLOSURES

2.2.1 Receptacle Boxes and Pull Boxes

2.2.2 Enclosures

2.3 NAMEPLATES

PART 3 EXECUTION

3.1 DISASSEMBLY AND REASSEMBLY

3.1.1 Disassembly

3.1.2 Re-installation

3.2 ISOLATED PHASE BUS WELDING

3.2.1 Tubular Bus Welding Procedure

3.2.2 Welding

3.3 PAINTING

3.4 INSPECTION AND TESTING

-- End of Section Table of Contents --

SECTION 26 05 00.00 26

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Amendment-0004 - Section 26 05 00.00 26 - Paragraph 3.3

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SECTION 26 05 00.00 26

SECTION 26 05 00.00 26

BASIC ELECTRICAL MATERIALS AND METHODS

PART 1 GENERAL

1.1 DESCRIPTION OF WORK

This section covers the electrical equipment and work necessary for the repair of transformer bank at Lower Monumental. Repair work shall follow specific work sequence described in this section and Section 48 19 23.20 26 , CLASS II GSU POWER TRANSFORMER BUSHING & OIL LEAK REPAIR.

1.2 REFERENCES

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE C2 (2017; Errata 1-2 2017; INT 1 2017) National Electrical Safety Code

INTERNATIONAL ELECTRICAL TESTING ASSOCIATION (NETA)

NETA MTS (2015) Standard for Maintenance Testing Specifications for Electrical Power Equipment and Systems

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA 250 (2014) Enclosures for Electrical Equipment (1000 Volts Maximum)

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

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

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

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

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

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

National Electrical Code

UNDERWRITERS LABORATORIES (UL)

UL 50 (2007; Reprint Apr 2012) Enclosures for Electrical Equipment, Non-environmental Considerations

UL 514A (2013; Reprint Aug 2017) UL Standard for Safety Metallic Outlet Boxes

1.3 SUBMITTALS

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

submittals having an "I" designation are for information only. A designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Within 45 calendar days after Notice of Award submit the following:.

1. Isophase Work Plan ; G, HDC

2. Isophase Inspection And Test Plan ; G, HDC

3. Tubular Bus Welding Procedure ; G, HDC

SD-03 Product Data

Within 45 calendar days after Notice of Award , submit complete descriptive literature and specifications of each product or system of products listed with original, legible manufacturer's cut sheets and data sheets to clearly indicate physical construction, operation, electrical characteristics, ratings, and associated hardware, as applicable. Include manufacturer's catalog numbers and designations, and clearly cross-reference with shop drawings as appropriate. Product data submitted for approval shall clearly show conformance with these specifications, including, but not being limited to, product manufacturers' declarations of conformance to applicable technical standards. Product data shall be approved prior to procurement of associated materials and equipment.

1. Receptacle Boxes and Pull Boxes ; G, HDC

2. Enclosures ; G, HDC

3. Corrosion Prevention ; G, HDC

4. NAMEPLATES; G, HDC

SD-06 Test Reports

1. Isophase As-Found Inspections And Tests Report ; G, HDC

2. Isophase Final Inspections And Tests Report ; G, HDC

1.4 GENERAL REQUIREMENTS

1.4.1 Materials, Equipment and Installation

New materials and equipment shall be furnished and any defective material or equipment damaged in the course of installation shall be replaced or repaired. Testing shall be performed to check the installation of and the proper operational functions of the electrical equipment. The installations shall be in accordance with the National Electrical Code, NFPA 70 , and the National Electrical Safety Code, IEEE C2 , except where specified otherwise in the specifications and/or plan sheets, whereas the specifications then drawings shall govern. Omission of details on the drawings or in the specifications shall not be construed as permitting deviations from Code requirements.

1.4.2 Standard Products

Material and equipment shall be the standard products of manufacturers regularly engaged in the manufacture of these products and shall essentially duplicate items that have been in satisfactory use for at least 5 years prior to proposal due date.

1.4.3 Corrosion Prevention

1.4.3.1 General

All equipment shall be protected to prevent deterioration from corrosion.

The general requirements are specified below; however, other corrosion-resisting treatments that are the equivalent of those specified may be used. Materials used for corrosion prevention shall be submitted for approval under SD-03 Product Data.

1.4.3.2 Fastenings and Fittings

Screws, bolts, nuts, pins, studs, springs, washers and other miscellaneous fastening and fittings shall be of corrosion-resistant material or shall be treated in an approved manner to render them resistant to corrosion.

All fastenings which are to be exposed directly to the weather shall be of corrosion-resisting material.

1.4.3.2.1 Corrosion-Resisting Materials

Corrosion-resisting steel, copper, brass, bronze, copper-nickel-copper alloys are acceptable corrosion-resisting materials.

1.5 DELIVERY, STORAGE AND HANDLING

Ship all equipment and/or materials completely assembled and wired as possible to minimize installation work. Shipped equipment and/or materials shall be arranged on delivery vehicles in an up-right position to avoid damage occurring during shipping. The Contractor shall be responsible for damage that occurs during shipping to all parts and painted surfaces, and shall repair all damage at no cost to the Government. Carefully package and clearly mark all spare parts and accessories.

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.1.1 Compliance with Standards

Equipment shall be new and meet all applicable NEMA and UL construction and rating requirements. No equivalent will be acceptable. Immediately notify the Contracting Officer of any requirements of the specifications or Contractor proposed materials or assemblies that do not comply with UL or NEMA. International Electromechanical Commission (IEC) rated equipment will not be considered an acceptable alternative to specified NEMA ratings.

2.1.2 Standard Products

Provide materials and equipment that are products of manufacturers regularly engaged in the production of such products which are of equal material, design and workmanship, and have been in satisfactory industrial use for 5 years prior to bid opening including applications of equipment and materials under similar circumstances and of similar size.

2.2 BOXES AND ENCLOSURES

2.2.1 Receptacle Boxes and Pull Boxes

Provide receptacle boxes and pull boxes made of malleable iron conforming to UL 514A with threaded fittings and shall be zinc-coated both inside and outside by hot-dip galvanizing method.

2.2.2 Enclosures

Provide stainless steel NEMA Type 3R enclosures that conform to UL 50 and NEMA 250, made from a minimum of 12 Standard Gage thickness and painted Munsell color system 5BG 7/0.4 high gloss (ANSI No. 70 gray), with provisions for locking. Piano type hinges are not acceptable for enclosure doors.

2.3 NAMEPLATES

a. Provide nameplates made from melamine plastic conforming to ASTM D709.

b. Nameplates shall be 0.125 inch thick, black with white center core. Surface shall be matte finish. Corners shall be square.

Accurately align lettering and engrave into the core. Minimum size of nameplates shall be 1 inch by 2.5 inches. Lettering shall be a minimum of 0.25 inch high, normal block style.

c. Plates shall be fastened with black-finished or silver-finished, corrosion-resisting, round-head machine screws or approved non-adhesive metal fasteners.

PART 3 EXECUTION

3.1 DISASSEMBLY AND REASSEMBLY

3.1.1 Disassembly

Prior to performing any work on the transformer as described in Section

48 19 23.20 26 , CLASS II GSU POWER TRANSFORMER BUSHING & OIL LEAK REPAIR

the following work shall be performed:

Submit a isophase work plan for this job that describes in detail the sequence of tasks for all work required by this Section for approval no less than 45 days after Notice to Proceed . The plan shall account for all work items that affect operation of Lower Monumental Powerhouse and identify any equipment that will be brought onto the intake deck.

Submit a isophase inspection and test plan that incorporates all Contract requirements, and subcontractor activities associated with removing and installing the isolated phase bus. The plan shall be submitted before performing the as-found and final inspections and tests. The plan shall include, but not be limited to, the following:

(1) A schedule for all tests and inspection activities.

(2) Equipment inspections, detailed step-by-step test procedures and reports to meet the requirements of the technical specifications, manufacturer recommendations, and NETA MTS.

(3) Calibration information, to include a list of the test equipment to be used during testing and commissioning, stating calibration requirements by the instrument manufacturer and certification that the instruments to be used have been calibrated within the past 6 months.

c. Coordinate with the Government to place the transformer Safe Clearance.

d. Electrically disconnect the tubular conductors from the test terminal on the transformer high-voltage bushings. Remove the test terminal from the transformer high-voltage bushing and store for re-installation. Remove the low-voltage bushing housing and electrically disconnect the flexible conductors from the low-voltage bushings and store for re-installation. Protect the hardware on the low-voltage terminals from damage, they have a long lead time if they must be replaced.

e. Perform the as-found inspections and tests of the isolated phase bus and submit the results on the isophase as-found inspections and tests report within 7 days of completing the inspections and tests.

f. Cut a section of isolated phase bus, including cover, as indicated on the contract drawings. The cut shall be made at the existing weld joint as indicated on the contract drawings. The bus segment shall be removed and safely relocated for subsequent reconnection.Seal up the portion of the cut bus going back to the powerhouse to prevent water intrusion. Include the process for sealing up the cut bus in the isophase work plan.

g. Unbolt and remove the isolation phase support structure and hardware as indicated on the contract drawings. The support structures and hardware shall be removed and safely relocated for subsequent re-installation.

h. Perform the required transformer work as specified in Section

48 19 23.20 26 , CLASS II GSU POWER TRANSFORMER BUSHING & OIL LEAK

REPAIR

3.1.2 Re-installation

After the work specified in Section 48 19 23.20 26 , CLASS II GSU POWER TRANSFORMER BUSHING & OIL LEAK REPAIR the following work shall be performed. Note all work performed shall comply with the applicable requirements of IEEE C2 and NFPA 70

a. Re-install the isolation phase support structure and hardware as indicated on the contract drawings.

b. Reinstall the section of the isolated phase bus and weld in accordance with paragraph ISOLATED PHASE BUS WELDING. Re-install the isolated phase bus covers.

c. Perform final inspection and test on the isolated phase bus. Submit the results on the isophase final inspections and tests report within 7 days of completing the inspections and tests.

d. Re-install the test terminal to the high-voltage bushing.

Electrically connect the tubular conductors to the test terminal.

Reinstall the flexible conductors to the transformer low-voltage bushings. Re-install the low-voltage bushing housing.

e. Coordinate with the Government to lift the Safe Clearance on the transformer.

f. Perform Final Testing and Commissioning in accordance with Section

48 19 23.20 26 , CLASS II GSU POWER TRANSFORMER BUSHING & OIL LEAK

REPAIR

3.2 ISOLATED PHASE BUS WELDING

3.2.1 Tubular Bus Welding Procedure

Submit a tubular bus welding procedure that details the process for welding the segment of the aluminum isophase bus conductor previously removed back to existing isophase bus conductor, and for welding the isophase bus enclosure. The procedure shall define the inspection requirements for each weld and identify the equipment and material required to perform the welding.

3.2.2 Welding

Splice butt-welding of the aluminum tubular conductor shall be accomplished by the inert-gas-shielded electric arc method using argon or helium gas and a tungsten electrode with an uncoated aluminum wire filler without flux, in accordance with AWS D10.7. Welders shall be ASME BPVC IX certified for welding on nonferrous materials. Welders' qualifications shall be submitted for approval. All butt welds between tubes shall be assembled with a 24-inch long reinforcing sleeve of aluminum tubular conductor, slit and spread by means of a mandrel to form a snug fit to the inside circumference of the bus. Plug welds between the conductor and the insert tube shall be made to position the insert and to provide maximum stiffness of the but-welded joint. The aluminum work piece shall be preheated to help avoid weld cracking. The preheat temperature shall not exceed 230 degrees Fahrenheit, as verified with a temperature indicator to prevent overheating.

3.3 PAINTING

Paint the welded section the isophase bus enclosure by degreasing, sanding, feather-edging, priming, and finishing with a polyurethane top coat over an epoxy base coat of matching color. Tiny nicks and other similar damage may, if approved, be repaired with matching finish color alone.

3.4 INSPECTION AND TESTING

Testing of the isolated phase bus shall be performed as specified in Section 48 19 23.20 26 .

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SECTION 26 05 00.00 26

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Amendment-0004 - Paragraph 3.3