Am0004_V2.pdf

Offers 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 or (c) By separate letter or electronic communication 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 letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

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

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

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

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, 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)

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.

15C. DATE SIGNED

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

16C. DATE SIGNED

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

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

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

Amendment No. 0004

480 Volt Station Service Switchgear & Transformer Upgrade, Fort Randall Dam, SD

See attached documentation for content of the amendment revisions

Date for receipt of Offer is 05 October 2017 at 2:00 pm

Government Point of Contact: Tim Boyte (402) 995-2589

U.S ARMY CORPS OF ENGINEERS, OMAHA DISTRICT

CONTRACTING OFFICE

1616 CAPITOL AVE.

OMAHA, NE 68102-4901

See Item 6

W9128F-17-T-0066

09/14/2017

07/21/2017

09/14/2017

Am #0004 - 2 (Continuation of SF 30)

DEPARTMENT OF THE ARMY

Omaha District, Corps of Engineers

1616 Capitol Avenue Omaha, Nebraska 68102-4901

:NOTICE: Failure to acknowledge :

:all amendments may cause rejec- :

:tion of the offer. :

Solicitation No. W9128F 17 T 0066

Date of Issue: 21 July 2017

Offer Due Date: 05 October 2017

Amendment No. 0004 14 September 2017

SUBJECT: Amendment No. 0004 to Specifications and Drawings for Construction of 480 Volt Station Service Switchgear & Transformer Upgrade, Fort

Randall Dam, SD.

Solicitation No. W9128F 17 T 0066.

TO: Prospective Offerors and Others Concerned

1. The specifications and drawings for subject project are hereby modified as follows (revise all specification indices, attachment lists, and drawing indices accordingly).

a. Specifications. (Descriptive Changes.)

(1) Standard Form SF 1449, delete date and time of receiving proposals shown and substitute "05 October 2017" at "2:00 pm".

b. Specifications (New and/or Revised and Reissued). Delete and substitute or add specification pages as noted below. The substituted pages are revised and reissued with this amendment.

Pages Deleted Pages Substituted or Added

Section 26 08 01.00 26 Section 26 08 01.00 26

SYSTEMS TESTING AND COMMISSIONING SYSTEMS TESTING AND COMMISSIONING

Section 26 11 16 Section 26 11 16 15kV AIR-BREAK SWITCHES 075 AND 077 15kV AIR-BREAK SWITCHES 075 AND 077

Section 26 23 10.10 26 Section 26 23 10.10 26

480 VOLT SWITCHGEAR RETROFILL 480 VOLT SWITCHGEAR RETROFILL

2. This amendment is a part of the solicitation papers and its receipt shall be acknowledged on the Standard Form 30. All other conditions and requirements of the specifications remain unchanged. If the offer has been mailed prior to receiving this amendment, you will notify the office where offers are received and of any changes in the offer occasioned thereby.

a. Hand-Carried Offers shall be delivered to the U.S. Army Corps of Engineers, Omaha District, Contracting Division, 1616 Capitol Avenue, Omaha, Nebraska 68102-4901.

Am #0004 - 3 (Continuation of SF 30)

b. Mailed Offers shall be addressed as noted in the Solicitation package.

3. Offers will be received until 2:00 p.m., local time at place of offers received, 05 October 2017.

Attachments: Spec Pages listed in 1.b. above

U.S. Army Engineer District, Omaha Corps of Engineers 1616 Capitol Avenue Omaha, Nebraska 68102-4901

06 Sep 2017

MFS/2184

Replace Interior 480V Station Service Equipment, Ft Randall Dam FRD7

SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

SECTION 26 08 01.00 26

SYSTEMS TESTING AND COMMISSIONING

PART 1 GENERAL

1.1 DESCRIPTION

1.2 APPLICABILITY

1.3 REFERENCED PUBLICATIONS

1.4 SUBMITTALS

1.5 GENERAL REQUIREMENTS

1.5.1 Sequence of Work

1.5.2 Equipment Removal, Installation, and Testing Plan and Schedule

1.5.3 Constraints and Outages

1.6 QUALIFICATIONS

1.6.1 Contractor's Representative

1.7 GENERAL RESPONSIBILITIES OF CONTRACTOR'S REPRESENTATIVE

1.8 RESPONSIBILITIES OF CONTRACTOR'S REPRESENTATIVE DURING CONTRACTOR'S

COMMISSIONING

1.9 RESPONSIBILITIES OF CONTRACTOR'S REPRESENTATIVE DURING GOVERNMENT'S

COMMISSIONING

PART 2 PRODUCTS - NOT USED

PART 3 EXECUTION

3.1 GENERAL INFORMATION

3.2 FIELD TESTING

3.3 CONTRACTOR'S COMMISSIONING AND TESTING

3.4 GOVERNMENT COMMISSIONING AND TESTING

-- End of Section Table of Contents --

SECTION 26 08 01.00 26 Page 1 Am0004

SECTION 26 08 01.00 26

SYSTEMS TESTING AND COMMISSIONING

PART 1 GENERAL

1.1 DESCRIPTION

a. This Section covers the testing and commissioning of electrical equipment installed under this contract and the sequencing of energized equipment. This Section expands and clarifies requirements described in the individual sections.

b. The work under this contract alters and interfaces with numerous systems within an operating Powerhouse and Dam. Therefore, final acceptance of installed equipment shall consist of the commissioning of the installed work and the verification of the overall Government system. The Contractor has lead responsibility for the commissioning of the installed work and the Government has lead responsibility for the verification of the overall Government system. Refer to SECTION 01 11 00.00 26 for SUMMARY OF WORK to be performed as base and optional items.

c. The Contractor shall furnish labor and material to accomplish and complete the commissioning as specified herein.

1.2 APPLICABILITY

This Section applies to all sections of these specifications unless otherwise indicated in the individual sections.

1.3 REFERENCED PUBLICATIONS

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 1248 (1998; R 2007) Commissioning of Electrical Systems in Hydroelectric Power Plants

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2014) Safety and Health Requirements Manual

1.4 SUBMITTALS

Government approval is required for all submittals required under this section. The following shall be submitted in accordance with SECTION 01 33 00, SUBMITTAL PROCEDURES unless otherwise indicated below:

SD-01 Preconstruction Submittals

Equipment Removal, Installation, and Testing Plan and Schedule; G, HDC & G, RO

SECTION 26 08 01.00 26 Page 2

Field Test Plans; G, HDC

SD-06 Test Reports

Field Test Reports; G, HDC

Conductor Insulation Resistance Test Report; G, HDC

Conductor Continuity and Labeling Test Report; G, HDC

Circuit Functionality Test Report; G, HDC

1.5 GENERAL REQUIREMENTS

1.5.1 Sequence of Work

All work shall be in accordance with the provisions of EM 385-1-1 and Fort Randall's Hazardous Energy Control Program ("Safe Clearance Procedure").

Work under this contract will require outages to energized systems. Proper sequencing of the work shall be required to minimize the duration of all outages of the station service switchgear and switchgear covered under this Contract.

1.5.2 Equipment Removal, Installation, and Testing Plan and Schedule

The Contractor shall submit at least 60 days prior to the starting work date the proposed step-by-step Equipment Removal, Installation, and Testing Plan and Schedule, hereinafter also referred to throughout these specifications as the "Sequence of Work" or the "Cutover Plan". This plan and schedule is in addition to the Project Schedule requirements of the contract. The Equipment Removal, Installation, and Testing Plan and Schedule shall include those activities and requirements listed in SECTIONS

26 00 00.00 26 GENERAL ELECTRICAL WORK AND EQUIPMENT, 26 05 19.00 26

INSULATED WIRE AND CABLE, 26 12 16.00 26 DRY-TYPE TRANSFORMERS,

26 23 10.10 26 26 480 VOLT SWITCHGEAR RETROFILL, and this section. The plan shall include a detailed sequential list of activities, duration of each activity, and duration of all outages required. Equipment outages shall be coordinated with Fort Randall project personnel. This plan shall be updated and resubmitted for approval when significant milestones are completed, updated, or scheduled. No work will be allowed to commence until the plan is approved.

1.5.3 Constraints and Outages

Only one 480 Vac switchgear or one switchgear bus if connected through a tie-breaker, will be allowed to be out of service at any one time for the removal of existing equipment, installation, and testing of the new equipment. Station service outages must be approved by the Contracting Officer's Representative. Both 480 Vac busses will be required to be de-energized in order to upgrade the Tie breaker section. This work must be coordinated at least 4 weeks in advance with the Contracting Officer's Representative. The outage time shall be limited to work that can only be done with the busses de-energized. All preparatory and staging work must be complete prior to bus de-energization.

The construction sequence will be critical in maintaining availability and operability of the plant during the change-out of the equipment. Temporary outages of individual circuits may be required as loads are transferred from the existing equipment to the new equipment. Outages shall be kept to

SECTION 26 08 01.00 26 Page 3 a minimum and shall be coordinated with the Contracting Officer's Representative prior to submittal of the Equipment Removal, Installation, and Testing Plan and Schedule. It is expected that the Contractor will maximize the pre-outage work and minimize the outage work.

1.6 QUALIFICATIONS

1.6.1 Contractor's Representative

The Contractor's representative shall have a minimum five years construction experience and is regularly engaged in testing and commissioning of electrical equipment of comparable type and complexity.

1.7 GENERAL RESPONSIBILITIES OF CONTRACTOR'S REPRESENTATIVE

The responsibilities of the Contractor's Representative shall include, but not limited to:

a. Coordinate with subcontractors to provide the Equipment Removal, Installation, and Testing Plan and Schedule, and monthly updates.

b. Attend commissioning coordination meetings.

c. Submit detailed Field Test Plans, specifically developed, for each system and piece of equipment installed under this contract.

d. Submit Field Test Reports, confirming in writing the proper installation and performance of electrical equipment installed.

1.8 RESPONSIBILITIES OF CONTRACTOR'S REPRESENTATIVE DURING CONTRACTOR'S

COMMISSIONING

The responsibilities of the Contractor's Representative during the Contractor's Commissioning shall include, but not limited to:

a. Coordinate with subcontractors to provide the Equipment Removal, Installation, and Testing Plan and Schedule, and monthly updates.

b. Attend commissioning coordination meetings.

c. Certify and submit results of Conductor Insulation Resistance Test Report, Conductor Continuity and Labeling Test Report, and Circuit Functionality Test Report and all other results as required in SECTIONS

26 00 00.00 26 GENERAL ELECTRICAL WORK AND EQUIPMENT, 26 05 19.00 26

INSULATED WIRE AND CABLE, 26 12 16.01 26 DRY-TYPE TRANSFORMERS,

26 23 10.10 26 26 480 VOLT SWITCHGEAR RETROFILL.

1.9 RESPONSIBILITIES OF CONTRACTOR'S REPRESENTATIVE DURING GOVERNMENT'S

COMMISSIONING

The responsibilities of the Contractor's Representative during the Government's Commissioning shall include, but not limited to:

a. Attend commissioning coordination meetings.

b. Provide one or more fully qualified craftsmen to assist during system commissioning for both the Contractor's Commissioning and Testing, and the Government's Commissioning and Testing.

SECTION 26 08 01.00 26 Page 4

PART 2 PRODUCTS - NOT USED

PART 3 EXECUTION

3.1 GENERAL INFORMATION

Following installation, the equipment shall be inspected, tested, and commissioned following applicable procedures listed in IEEE 1248.

3.2 FIELD TESTING

a. During the construction and installation of electrical equipment, the contractor shall perform the necessary inspections to ensure that the installation is in accordance with manufacturer's instructions and the design documents.

b. Detailed testing shall be performed on all installed equipment as specified in SECTIONS 26 00 00.00 26, 26 05 19.00 26, 26 12 16.00 26, and 26 23 10.10 26, to ensure that operation and performance conform to contract documents. All tests shall be witnessed by the Contracting Officer's Representative. Field Test Plans shall be submitted for approval per paragraph 1.4. The Contractor shall notify the Government not less than 30 days prior to starting any test. All Field Test Reports shall be submitted prior to the commissioning tests.

c. The following data shall be recorded and submitted for all tests:

(1) Description of test

(2) Description of equipment tested

(3) Contractor shall provide calibration certificate from testing lab having A2LA Accreditation. Instruments and equipment used in certification and commissioning shall be calibrated to a minimum of ANSI/NCSL Z540.3 standards. Instruments or equipment not calibrated shall not be used for certification or commissioning purposes.

(4) Description of operation of all affected system components

3.3 CONTRACTOR'S COMMISSIONING AND TESTING

The following testing is required as part of the Contractor's commissioning process:

a. Insulation Resistance Test (100% of all Conductors). All conductors shall successfully pass an insulation resistance test at the values specified within the individual specification sections. The contractor shall tabulate these test results, certify them, and submit them prior to the system commissioning.

b. Conductor Continuity Test (100% of all Conductors). All conductors shall successfully pass a continuity test between each termination.

Proper termination shall also be verified for each conductor. The contractor shall tabulate these test results, certify them, and submit them prior to the system commissioning.

SECTION 26 08 01.00 26 Page 5

c. Circuit Functionality Test. All circuits installed by the contractor shall be given a complete functionality test, verifying that devices operate properly, and that the function of the circuit is as designed. This shall include tracing and verifying energy and/or signals are present at each point in the circuit at the proper time and in the proper sequence. The contractor shall also verify that conductors and terminations are properly labeled. The contractor shall tabulate these results, certify them, and submit them prior to the system commissioning.

d. Breaker Trip Unit Test. All breaker trip units installed by the contractor shall be given a complete functionality test, verifying that devices operate properly, and that the function of the trip unit is as designed. The Contractor shall tabulate these results, certify them, and submit them prior to the system commissioning. Breaker trip unit settings will be provided by the Government for all retro-fill breaker trip units.

e. Main and Tie breaker control circuits will be checked point to point and functionally to verify control from the Control Room and verification of all interlocks via contacts in the circuits.

f. Circuit Breaker remote racking device(s) will be tested to ensure proper functionality and that the device racks in the circuit breaker both locally and remotely.

3.4 GOVERNMENT COMMISSIONING AND TESTING

After the Contractor has completed all testing required under these specifications, the Government will conduct an independent verification of the results and a system commissioning procedure. The Contractor shall participate in these activities by reviewing and becoming familiar with the Government commissioning plan, and by participating in the commissioning process. The Contractor shall provide one or more fully qualified craftsmen to assist in the testing, by taking readings, observing equipment, verifying settings, and making adjustments as instructed by the Commissioning Engineer.

-- End of Section --

SECTION 26 08 01.00 26 Page 6

DIVISION 26 - ELECTRICAL

SECTION 26 11 16

15kV AIR-BREAK SWITCHES 075 and 077

02/10

PART 1 GENERAL

1.1 REFERENCES

1.2 RELATED REQUIREMENTS

1.3 DEFINITIONS

1.4 SUBMITTALS

1.5 QUALITY ASSURANCE

1.5.1 Drawing Requirements

1.5.1.1 15kV Air-Break Switch Drawings

1.5.2 Paint Coating System

1.5.3 15kV Air-Break Switch Product Data

1.5.4 Test Reports

1.5.5 Regulatory Requirements

1.5.6 Standard Products

1.5.6.1 Alternative Qualifications

1.5.6.2 Material and Equipment Manufacturing Date

1.6 MAINTENANCE

1.6.1 Assembled Operation and Maintenance Manuals

1.6.2 Operation and Maintenance Data

1.7 WARRANTY

PART 2 PRODUCTS

2.1 PRODUCT COORDINATION

2.2 15 KV AIR-BREAK SWITCHES

2.2.1 Incoming Section

2.2.1.1 Incoming Section Enclosure

2.2.1.2 Cable and Bus Connections

2.2.1.3 Surge Arresters

2.2.1.4 Load Interrupter Switch

2.2.1.5 Primary Protective Device Connection

2.2.2 Heaters

2.2.3 Insulated Barriers

2.2.4 Terminal Boards

2.2.5 Wire Marking

2.2.6 Grounding and Bonding

2.2.7 Cast-in-Place Concrete

2.3 MANUFACTURER'S NAMEPLATES

2.4 FIELD FABRICATED NAMEPLATES

2.5 WARNING SIGNS

2.6 SOURCE QUALITY CONTROL

2.6.1 Equipment Test Schedule

2.6.2 Load Interrupter Switch Production Tests

PART 3 EXECUTION

SECTION 26 11 16 Page 1

3.1 INSTALLATION

3.2 GROUNDING

3.2.1 Connections

3.2.2 Grounding and Bonding Equipment

3.3 INSTALLATION OF EQUIPMENT AND ASSEMBLIES

3.3.1 Interrupter Switchgear

3.3.2 Field Applied Painting

3.3.3 Field Fabricated Nameplate Mounting

3.3.4 Warning Sign Mounting

3.3.5 Galvanizing Repair

3.4 FOUNDATION FOR EQUIPMENT AND ASSEMBLIES

3.4.1 Interior Location

3.4.2 Cast-in-Place Concrete

3.5 FIELD QUALITY CONTROL

3.5.1 Performance of Acceptance Checks and Tests

3.5.1.1 Interrupter Switchgear (Air Switches)

3.5.1.2 Grounding System

3.5.2 Pre-Energization Services

3.5.3 Follow-Up Verification

-- End of Section Table of Contents --

SECTION 26 11 16 Page 2

SECTION 26 11 16

15kV AIR-BREAK SWITCHES 075 and 077 02/10

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 in the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM A780/A780M (2009; R 2015) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

ASTM D1535 (2014) Specifying Color by the Munsell System

ASTM D709 (2016) Standard Specification for Laminated Thermosetting Materials

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 100 (2000; Archived) The Authoritative Dictionary of IEEE Standards Terms

IEEE 386 (2016) Separable Insulated Connector Systems for Power Distribution Systems Rated 2.5 kV through 35 kV

IEEE C2 (2017) National Electrical Safety Code

IEEE C37.121 (2012) American National Standard for Switchgear-Unit Substations - Requirements

IEEE C37.20.3 (2013) Standard for Metal-Enclosed Interrupter Switchgear

IEEE C57.12.29 (2014) Standard for Pad-Mounted Equipment

- Enclosure Integrity for Coastal Environments

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

INTERNATIONAL ELECTRICAL TESTING ASSOCIATION (NETA)

NETA ATS (2013) Standard for Acceptance Testing Specifications for Electrical Power Equipment and Systems

SECTION 26 11 16 Page 3

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA ICS 6 (1993; R 2011) Industrial Control and Systems: Enclosures

NEMA LI 1 (1998; R 2011) Industrial Laminating Thermosetting Products

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2017) National Electrical Code

UNDERWRITERS LABORATORIES (UL)

UL 467 (2013) Grounding and Bonding Equipment

1.2 RELATED REQUIREMENTS

Section 26 08 01.00 26 SYSTEM TESTING AND COMMISSIONING applies to this section, with the additions and modifications specified herein.

1.3 DEFINITIONS

Unless otherwise specified or indicated, electrical and electronics terms used in these specifications, and on the drawings, shall be as defined in

IEEE 100.

1.4 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

15kV Air-Break Switch drawings; G, DO

Include wiring diagrams and installation details of switching equipment indicating proposed location, layout and arrangement, accessories, bus work, cabling, surge arresters and other items that must be shown to ensure a coordinated installation. Wiring diagrams shall identify circuit terminals and indicate the internal wiring for each item of equipment and the interconnection between each item of equipment. Drawings shall indicate adequate clearance for operation, maintenance, and replacement of operating equipment devices. Submittals shall include the nameplate data, size, and capacity. Submittals shall also include applicable federal, industry, and technical society publication references.

SD-03 Product Data

15kV Air-Break Switches; G, DO

Surge Arresters; G, DO

Submittal shall include manufacturer's information for each component, device, and accessory provided with the each 15kV

SECTION 26 11 16 Page 4

Air-Break Switch.

SD-06 Test Reports

Acceptance checks and tests; G, RO

SD-07 Certificates

Paint coating system; G, RO

SD-09 Manufacturer's Field Reports

15kV Air-Break Switch production tests; G, RO

SD-10 Operation and Maintenance Data

15kV Air-Break Switch, Data Package 5; G, RO

SD-11 Closeout Submittals

Assembled Operation and Maintenance Manuals; G, RO

Equipment test schedule; G, RO

1.5 QUALITY ASSURANCE

1.5.1 Drawing Requirements

1.5.1.1 15kV Air-Break Switch Drawings

Drawings shall include, but are not limited to the following:

a. An outline drawing, with front, top, and side views showing incoming and outgoing sections.

b. One-line diagram showing load interrupter switch and ampere rating of bus bars and cable connections.

c. Elementary diagrams and wiring diagrams with terminals identified, and indicating prewired interconnections between items of equipment and the interconnection between the items.

1.5.2 Paint Coating System

Submit IEEE C57.12.29 coating system performance requirement tests. When 15kV Air-Break Switches and dry-type transformers are provided by two different manufacturers, each one shall provide certification.

1.5.3 15kV Air-Break Switch Product Data

Submittal shall include manufacturer's information for each component, device, and accessory provided with the equipment.

1.5.4 Test Reports

Submit report of acceptance test results as specified by paragraph entitled "Field Quality Control."

SECTION 26 11 16 Page 5

1.5.5 Regulatory Requirements

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

1.5.6 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. Products shall have been in satisfactory commercial or industrial use for 2 years prior to bid opening. The 2-year period shall include applications of equipment and materials under similar circumstances and of similar size. The product shall have been on sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 2-year period. Where two or more items of the same class of equipment are required, these items shall be products of a single manufacturer; however, the component parts of the item need not be the products of the same manufacturer unless stated in this section.

1.5.6.1 Alternative Qualifications

Products having less than a 2-year field service record will be acceptable if a certified record of satisfactory field operation for not less than 6000 hours, exclusive of the manufacturers' factory or laboratory tests, is furnished.

1.5.6.2 Material and Equipment Manufacturing Date

Products manufactured more than 3 years prior to date of delivery to site shall not be used, unless specified otherwise.

1.6 MAINTENANCE

1.6.1 Assembled Operation and Maintenance Manuals

Manuals shall be assembled in durable, hard covered, water resistant binders. The manual shall be assembled and indexed in the order noted in a table of contents. The contents of the assembled operation and maintenance manuals shall be as follows:

a. Manufacturer's O&M information required by the paragraph entitled, "SD-10 Operation and Maintenance Data."

b. Catalog data required by the paragraph entitled, "SD-03 Product Data."

c. Drawing required by the paragraph entitled, "SD-02 Shop Drawings."

d. Price for spare parts and supply list

e. Routine and field acceptance test reports

SECTION 26 11 16 Page 6

1.6.2 Operation and Maintenance Data

Submit operation and maintenance data in accordance with Section 01 30 60.00 26 OPERATION AND MAINTENANCE DATA and as specified herein.

1.7 WARRANTY

The equipment items shall be supported by service organizations which are reasonably convenient to the equipment installation in order to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of the contract.

PART 2 PRODUCTS

2.1 PRODUCT COORDINATION

Products and materials not considered to be secondary unit substations and related accessories are specified in Section 26 12 16.01 26 DRY-TYPE TRANSFORMERS and Section 26 05 13.00 26 MEDIUM-VOLTAGE CABLE AND

TERMINATIONS.

2.2 15 KV AIR-BREAK SWITCHES

Secondary 15 kV Air-Break Switches shall comply with IEEE C37.121. 15 kV Air-Break Switches shall be designed for indoor service. 15 kV Air-Break Switches shall be subassembled and coordinated by one manufacturer and shall be shipped in complete sections ready for connection at the site.

Where practicable, 15 kV Air-Break Switches shall be shipped as one unit.

External doors shall have provisions for padlocking.

2.2.1 Incoming Section

The incoming section shall consist of a metal-enclosed interrupter switchgear section for connecting the incoming circuit through a nonfused load interrupter switch as indicated on the One-Line Diagram. If required for proper connection and alignment, include a transition section with the incoming section.

2.2.1.1 Incoming Section Enclosure

The incoming section enclosure shall be NEMA ICS 6 Type 1. Bases, frames and channels of enclosure shall be corrosion resistant and shall be fabricated of galvanized steel. Base shall include any part of enclosure that is within 3 inches of concrete pad. Paint enclosure, including bases, ASTM D1535 light gray No. 61 or No. 49. Paint coating system shall comply with IEEE C57.12.29.

2.2.1.2 Cable and Bus Connections

Provide medium voltage cable terminations as specified in Section

26 05 13.00 26 MEDIUM-VOLTAGE CABLE AND TERMINATIONS.

IEEE 386. Insulated High-Voltage Connectors. Connectors shall have steel reinforced hook-stick eye, grounding eye, test point, and arc-quenching contact material.

a. 600 ampere deadbreak connector ratings: Voltage: 15 kV, 95 kV BIL.

Short time rating: 40,000 rms symmetrical amperes. Connectors shall have 200 ampere bushing interface for surge arresters.

SECTION 26 11 16 Page 7

b. Existing switches 075 and 077 are bus connected on the bottom and cable connected on the top of the switches.

2.2.1.3 Surge Arresters

IEEE C62.11, rated 15.3 kV, fully shielded, dead-front, metal oxide varistor, elbow type with resistance-graded gap, suitable for plugging into inserts. Arresters shall be station class. Arresters shall be equipped with mounting brackets suitable for the indicated installations.

2.2.1.4 Load Interrupter Switch

IEEE C37.20.3, UL listed and labeled load interrupter switchgear. Provide a three-pole, single-throw, deadfront, metal-enclosed, load interrupter switch with manual stored energy operator. Switch shall be non-fused and designed for easy inspection. The switch shall be operated by a manually charged spring stored energy mechanism which shall simultaneously disconnect or connect ungrounded conductors. The moveable blade of the switch shall be deenergized when in the open position. The mechanism shall enable the switch to close against a fault equal to the momentary rating of the switch without affecting its continuous current carrying or load interrupting ability. A ground bus shall extend the width of the switch enclosure and shall be bolted directly thereto. Connect frame of unit to ground bus. The door shall have an inspection window to allow full view of the position of the three switch blades through the closed door. Switch shall have provision for padlocking in the open and closed positions.

Switch integrated ratings shall be as follow:

Rated Maximum Voltage, kV

Rated Withstand Impulse Voltage, kV BIL

Continuous and Load Interrupting Current, A

Short-Circuit Current kA rms Sym

Short-Time / Fault-Close Current kA

15 95 600 38 61

2.2.1.5 Primary Protective Device Connection

Connections between the primary protective device and transformer shall be bus mounted on porcelain insulators, and sized and braced to withstand the specified short-circuit and short-time currents.

2.2.2 Heaters

Provide 120-volt heaters in each 15 kV Air-Break Switch. Heaters shall be of sufficient capacity to control moisture condensation in the compartments, shall be 250 watts minimum, and shall be controlled by a thermostat and humidistat located in each section. Thermostat shall be industrial type, high limit, to maintain compartments within the range of 60 to 90 degrees F. Humidistat shall have a range of 30 to 60 percent relative humidity. If heater voltage is different than switch equipment voltage, provide transformer rated to carry 125 percent of heater full load rating. Transformer shall have 220 degrees C insulation system with a temperature rise not exceeding 115 degrees C and shall conform to NEMA ST 20.

2.2.3 Insulated Barriers

Where insulated barriers are required by reference standards, provide

SECTION 26 11 16 Page 8 barriers in accordance with NEMA LI 1, Type GPO-3, 0.25 inch minimum thickness.

2.2.4 Terminal Boards

Provide with engraved plastic terminal strips and screw type terminals for external wiring between components and for internal wiring between removable assemblies. Terminal board identification shall be identical in similar units. External wiring shall be color coded consistently for similar terminal boards.

2.2.5 Wire Marking

Mark control conductors at each end. Provide factory-installed, white, plastic tubing, heat stamped with black block type letters on factory-installed wiring. On field-installed wiring, provide white, preprinted, polyvinyl chloride (PVC) sleeves, heat stamped with black block type letters. Each sleeve shall contain a single letter or number, shall be elliptically shaped to securely grip the wire, and shall be keyed in such a manner to ensure alignment with adjacent sleeves. Provide specific wire markings using the appropriate combination of individual sleeves.

Each wire marker shall indicate the device or equipment, including specific terminal number to which the remote end of the wire is attached.

2.2.6 Grounding and Bonding

Provide as specified in Section 26 05 26.00 26 GROUNDING.

2.2.7 Cast-in-Place Concrete

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

Fine aggregate shall be of hard, dense, durable, clean, and uncoated sand.

The coarse aggregate shall be reasonably well graded from 3/16 inch to one inch. The fine and coarse aggregates shall be free from injurious amounts of dirt, vegetable matter, soft fragments or other deleterious substances.

Water shall be fresh, clean, and free from salts, alkali, organic matter, and other impurities. Concrete associated with electrical work for other than encasement of underground ducts shall be 4000 psi minimum 28-day compressive strength unless specified otherwise. Slump shall not exceed 4 inches. Retempering of concrete will not be permitted. Exposed, unformed concrete surfaces shall be given a smooth, wood float finish. Concrete shall be cured for a period of not less than 7 days, and concrete made with high early strength portland cement shall be repaired by patching honeycombed or otherwise defective areas with cement mortar as directed by the Contracting Officer. Air entrain concrete exposed to weather using an air-entraining admixture conforming to ASTM C260/C260M. Air content shall be between 4 and 6 percent.

2.3 MANUFACTURER'S NAMEPLATES

Each item of equipment shall have a nameplate bearing, as a minimum, the manufacturer's name, address, model number, and serial number securely affixed in a conspicuous place; the nameplate of the distributing agent will not be acceptable. Include additional information as applicable to fully identify the equipment. Nameplates shall be made of noncorrosive metal. Switch nameplates shall have a schematic with all switch positions shown and labeled. As a minimum, provide nameplates for transformers, and switches.

SECTION 26 11 16 Page 9

2.4 FIELD FABRICATED NAMEPLATES

ASTM D709. Provide laminated plastic nameplates for each 15 kV Air-Break Switch; as specified in this section or as indicated on the drawings. Each nameplate inscription shall identify the function and, when applicable, the position. Nameplates shall be melamine plastic, 0.125 inch thick, white with black 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 one by 2.5 inches. Lettering shall be a minimum of 0.25 inch high normal block style.

2.5 WARNING SIGNS

Provide warning signs for the enclosures of secondary unit substations having a nominal rating exceeding 600 volts.

a. When the enclosure integrity of such equipment is specified to be in accordance with IEEE C57.12.29, such as for secondary unit substations, provide self-adhesive warning signs on the outside of the high voltage compartment door(s). Sign shall be a decal and shall have nominal dimensions of 7 by 10 inches with the legend "DANGER HIGH VOLTAGE" printed in two lines of nominal 2 inch high letters. The word "DANGER" shall be in white letters on a red background and the words "HIGH VOLTAGE" shall be in black letters on a white background. Decal shall be Panduit No. PPSO710D72 or approved equal.

2.6 SOURCE QUALITY CONTROL

2.6.1 Equipment Test Schedule

The Government reserves the right to witness tests. Provide equipment test schedules for tests to be performed at the manufacturer's test facility.

Submit required test schedule and location, and notify the Contracting Officer 30 calendar days before scheduled test date. Notify Contracting Officer 15 calendar days in advance of changes to scheduled date.

Test Instrument Calibration

1. The manufacturer shall have a calibration program which assures that all applicable test instruments are maintained within rated accuracy.

2. The accuracy shall be directly traceable to the National Institute of Standards and Technology.

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

4. Dated calibration labels shall be visible on all test equipment.

5. Calibrating standard shall be of higher accuracy than that of the instrument tested.

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

SECTION 26 11 16 Page 10

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

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

2.6.2 Load Interrupter Switch Production Tests

IEEE C37.20.3. Furnish reports of production tests performed on the actual equipment for this project. Required Production Tests shall be as follows:

1. Dielectric.

2. Mechanical operation.

3. Electrical operation.

PART 3 EXECUTION

3.1 INSTALLATION

Electrical installations shall conform to IEEE C2, NFPA 70, and to the requirements specified herein.

3.2 GROUNDING

NFPA 70 and IEEE C2, except that grounds and grounding systems shall have a resistance to solid earth ground not exceeding 25 ohms.

3.2.1 Connections

Make joints in grounding conductors and loops by exothermic weld or compression connector. Exothermic welds and compression connectors shall be installed as specified in Section 26 05 26.00 26 GROUNDING, paragraph regarding "GROUND CONNECTIONS".

3.2.2 Grounding and Bonding Equipment

UL 467, except as indicated or specified otherwise.

3.3 INSTALLATION OF EQUIPMENT AND ASSEMBLIES

Install and connect unit substations furnished under this section as indicated on project drawings, the approved shop drawings, and as specified herein.

3.3.1 Interrupter Switchgear

IEEE C37.20.3.

3.3.2 Field Applied Painting

Where field applied painting of enclosures is required to correct damage to the manufacturer's factory applied coatings, provide manufacturer's recommended coatings and apply in accordance with manufacturer's instructions.

SECTION 26 11 16 Page 11

3.3.3 Field Fabricated Nameplate Mounting

Provide number, location, and letter designation of nameplates as indicated. Fasten nameplates to the device with a minimum of two sheet-metal screws or two rivets.

3.3.4 Warning Sign Mounting

Provide the number of signs required to be readable from each accessible side, but space the signs a maximum of 30 feet apart.

3.3.5 Galvanizing Repair

Repair damage to galvanized coatings using ASTM A780/A780M, zinc rich paint, for galvanizing damaged by handling, transporting, cutting, welding, or bolting. Do not heat surfaces that repair paint has been applied to.

3.4 FOUNDATION FOR EQUIPMENT AND ASSEMBLIES

3.4.1 Interior Location

Mount unit substation on concrete slab. Unless otherwise indicated, the slab shall be at least 4 inches thick. The top of the concrete slab shall be approximately 4 inches above finished floor. Edges above floor shall have 1/2 inch chamfer. The slab shall be of adequate size to project at least 4 inches beyond the equipment. Provide conduit turnups and cable entrance space required by the equipment to be mounted. Seal voids around conduit openings in slab with water- and oil-resistant caulking or sealant. Seals shall be of sufficient strength and durability to protect all energized live parts of the equipment from rodents, insects, or other foreign matter. Cut off and bush conduits 3 inches above slab surface.

3.4.2 Cast-in-Place Concrete

Cast-in-place concrete work shall conform to the requirements of Section

03 60 00.00 CONCRETE DEMOLITION, REPAIR OF CONCRETE SURFACES, AND EQUIPMENT

FOUNDATIONS.

3.5 FIELD QUALITY CONTROL

3.5.1 Performance of Acceptance Checks and Tests

Perform in accordance with the manufacturer's recommendations and include the following visual and mechanical inspections and electrical tests, performed in accordance with NETA ATS.

3.5.1.1 Interrupter Switchgear (Air Switches)

a. Visual and Mechanical Inspection:

1. Compare equipment nameplate data with specifications and approved shop drawings.

2. Inspect physical and mechanical condition.

3. Confirm correct application of manufacturer's recommended lubricants.

4. Verify appropriate anchorage and required area clearances.

SECTION 26 11 16 Page 12

5. Verify appropriate equipment grounding.

6. Verify correct blade alignment, blade penetration, travel stops, and mechanical operation.

7. Inspect all bolted electrical connections for high resistance using low-resistance ohmmeter, verifying tightness of accessible bolted electrical connections by calibrated torque-wrench method, or performing thermographic survey.

8. Test interlocking systems for correct operation and sequencing.

9. Verify correct phase barrier materials and installation.

10. Compare switch blade clearances with industry standards.

11. Inspect all indicating devices for correct operation.

b. Electrical Tests:

1. Perform insulation-resistance tests.

2. Perform over-potential tests.

3. Perform resistance measurements through all bolted connections with low-resistance ohmmeter, if applicable.

4. Measure closed contact-resistance across each switch blade.

5. Verify heater operation.

3.5.1.2 Grounding System

a. Visual and Mechanical Inspection:

1. Inspect ground system for compliance with contract plans and specifications.

b. Electrical Tests:

1. Perform ground-impedance measurements utilizing the fall-of-potential method. On systems consisting of interconnected ground rods, perform tests after interconnections are complete.

On systems consisting of a single ground rod perform tests before any wire is connected. Take measurements in normally dry weather, not less than 48 hours after rainfall. Use a portable ground testing megger in accordance with manufacturer's instructions to test each ground or group of grounds. The instrument shall be equipped with a meter reading directly in ohms or fractions thereof to indicate the ground value of the grounding systems under test.

2. Submit the measured ground resistance of each grounding system, indicating the location of the grounding system. Include the test method and test setup (i.e., pin location) used to determine ground resistance at the time the measurements were made.

SECTION 26 11 16 Page 13

3.5.2 Pre-Energization Services

Calibration, testing, adjustment, and placing into service of the installation shall be accomplished by a manufacturer's product field service engineer or independent testing company with a minimum of 2 years of current product experience. The following services shall be performed subsequent to testing but prior to the initial energization. The equipment shall be inspected to ensure that installation is in compliance with the recommendations of the manufacturer and as shown on the detail drawings.

Terminations of conductors at major equipment shall be inspected to ensure the adequacy of connections. Bare and insulated conductors between such terminations shall be inspected to detect possible damage during installation. If factory tests were not performed on completed assemblies, tests shall be performed after the installation of completed assemblies.

Components shall be inspected for damage caused during installation or shipment to ensure packaging materials have been removed. Components capable of being both manually and electrically operated shall be operated manually prior to the first electrical operation. Components capable of being calibrated, adjusted, and tested shall be calibrated, adjusted, and tested in accordance with the instructions of the equipment manufacturer.

3.5.3 Follow-Up Verification

Upon completion of acceptance checks, settings, and tests, the Contractor shall show by demonstration in service that circuits and devices are in good operating condition and properly performing the intended function.

Test shall require each item to perform its function not less than three times. As an exception to requirements stated elsewhere in the contract, the Contracting Officer shall be given 5 working days' advance notice of the dates and times for checks, settings, and tests.

-- End of Section --

SECTION 26 11 16 Page 14

DIVISION 26 - ELECTRICAL

SECTION 26 23 10.10 26

480 VOLT SWITCHGEAR RETROFILL

PART 1 GENERAL

1.1 GENERAL

1.2 REFERENCES

1.3 SUBMITTALS

1.4 GENERAL REQUIREMENTS

1.4.1 General

1.4.2 Delivery, Storage, and Handling

1.4.3 Qualifications

1.5 MATERIALS, EQUIPMENT AND INSTALLATION

1.5.1 Standard Products

1.5.2 Corrosion Prevention

1.5.2.1 General

1.5.2.2 Fastenings and Fittings

1.5.2.3 Corrosion-Resisting Materials

1.5.2.4 Corrosion-Resisting Treatments

1.5.2.5 Finish

1.5.3 Storage and Handling

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 General

2.1.2 Device Arrangement

2.1.3 Connections

2.2 480 VOLT SWITCHGEAR

2.2.1 Assembly And Detail Drawings

2.2.2 Outline Drawings

2.2.3 Schematic Diagrams And Connection Diagrams

2.2.4 Circuit Breakers

2.2.4.1 General

2.2.4.2 Bus Supply and Bus Tie Circuit Breakers

2.2.4.3 Feeder Air Circuit Breakers

2.2.4.4 Digital Trip Units

2.2.4.5 High-Interrupt Motor Circuit Protectors (HMCPs)

2.2.4.6 Doors

2.2.5 Wiring

2.2.6 Terminals And Installation

2.2.7 Terminal Blocks

2.2.8 Molded-Case Circuit Breakers

2.2.9 Nameplates

2.2.10 Remote Racking Device

2.2.11 Remote Control Device

2.3 ESCUTCHEONS

2.4 INSTRUMENT TRANSFORMERS

2.4.1 General

2.4.2 Voltage Transformers

2.4.3 Current Transformers

2.4.3.1 General

2.4.3.2 Window or Bushing Type Current Transformers

SECTION 26 23 10.10 26 Page 1

2.4.3.3 Rating

2.4.3.4 Burden Analysis

2.5 PAINT

2.6 ACCESSORIES

2.7 SPARE PARTS

PART 3 EXECUTION

3.1 EQUIPMENT INSTALLATION

3.2 FACTORY INSPECTION AND TESTS

3.2.1 General

3.2.2 Breaker Assembly Tests

3.2.2.1 Assembled Equipment

3.2.2.2 Wiring

3.2.2.3 Breaker Assembly

3.2.2.4 Circuit Breaker

3.3 480 VAC BUS BRACING STUDY AND REBRACING

3.4 FEEDER CABLE REPLACEMENT

3.5 FIELD INSPECTION, TESTING AND COMMISSIONING

3.5.1 General

3.5.2 Low Voltage Breakers

3.5.3 Commissioning

3.6 PAINTING

3.7 QUALIFICATIONS OF FIELD ENGINEERING SERVICE PERSONNEL

3.8 CONTRACTOR FURNISHED TRAINING OF GOVERNMENT PERSONNEL

-- End of Section Table of Contents --

SECTION 26 23 10.10 26 Page 2

SECTION 26 23 10.10 26

480 VOLT SWITCHGEAR RETROFILL

PART 1 GENERAL

1.1 GENERAL

These specifications include the design, fabrication, assembly, wiring, testing, and delivery of the equipment necessary to complete the Fort Randall Replace Interior 480V Station Service Equipment including integration with the equipment specified in SECTIONS 26 00 00.00 26 GENERAL

ELECTRICAL WORK AND EQUIPMENT, 26 05 19.00 26 INSULATED WIRE AND CABLE,

26 12 16.01 26 DRY-TYPE TRANSFORMERS, 26 23 10.10 26 26 480 VOLT SWITCHGEAR

RETROFILL.

1.2 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.

ASME INTERNATIONAL (ASME)

ASME B1.1 (2003; R 2008) Unified Inch Screw Threads (UN and UNR Thread Form)

ASME B1.20.1 (2013) Pipe Threads, General Purpose (Inch)

ASTM INTERNATIONAL (ASTM)

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

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 1248 (1998; R 2007) Commissioning of Electrical Systems in Hydroelectric Power Plants

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

IEEE C37.13 (2008; INT 1 2009; AMD 1 2012) Standard for Low-Voltage AC Power Circuit Breakers Used in Enclosures

IEEE C37.16 (2009) Standard for Preferred Ratings, Related Requirements, and Application Recommendations for Low-Voltage AC (635 V

SECTION 26 23 10.10 26 Page 3 and below) and DC 3200 V and below) Power Circuit Breakers

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

IEEE C37.20.1 (2002; INT 1 2005; AMD A 2005; AMD B 2006;

R 2007) Standard for Metal-Enclosed Low-Voltage Power Circuit-Breaker Switchgear

IEEE C37.59 (2017) Requirements for Conversion of Power Switchgear Equipment

IEEE C57.13.3 (2006) Grounding of Instrument Transformer Secondary Circuits and Cases

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA C37.50 (2012) American National Standard for Switchgear--Low-Voltage AC Power Circuit Breakers Used in Enclosures - Test Procedures

NEMA SG 4 (2009) Alternating-Current High-Voltage Circuit Breaker

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2017) National Electrical Code

UNDERWRITERS LABORATORIES (UL)

UL 44 (2014; Reprint Jun 2014) Thermoset-Insulated Wires and Cables

UL 1581 (2001; Reprint Oct 2009) Electrical Wires,…