Specifications For

Shermco Project 90001351 IRIS Substation

69kV Dead-end Structure

Mount Pleasant Municipal Utilities Mount Pleasant, Iowa

April 16th, 2019 BID ISSUE

Prepared Under Direction of: David Charles, P.E. 11126

Shermco Industries

March 2019 Shermco

NOTICE FOR BIDS

Furnishing and Delivery of 69KV DEAD-END STRUCTURE

IRIS SUBSTATION For Mount Pleasant Municipal Utilities

Mount Pleasant, 52641

Notice is hereby given that plans and specifications for furnishing and delivery of a 69,000 Volt Dead-End Structure and accessories for the Iris Substation were reviewed and approved at a regularly scheduled Utility Board Meeting held on April 16th, 2019. Sealed Bids in conformance with the project documents will be received by Mr. Jack Hedgecock, general manager of Mount Pleasant Municipal Utilities (MPU), until 2:00 p.m., May 16th, 2019, at the MPU office located at 509 North Adams Street, Mount Pleasant, Iowa 52641. A public hearing will be held for this project and the bids will be reviewed and acted upon at a regularly scheduled Utility Board Meeting to be held on May 21, 2019. Award will follow within 90 days. BID ITEM Furnish and deliver F.O.B. site located at 600 South Iris Street near the intersection of East Washington Street and Iris Street, on the east side of Mount Pleasant, Iowa, a new 69KV dead-end structure, 69KV Circuit Switcher, GOAB disconnect switch, Instrument Transformers, conductors and connectors, and related hardware in accordance with the attached plans and specifications. Bids shall be provided for that purpose and according to the Bidding Requirements prepared by Shermco Industries, dated March, 2019. The bid form shall be shall be submitted on paper in a sealed envelope to the Owner and the technical proposal submitted electronically to the Owner and Engineer. Submittals must contain the information required by these instructions to be considered complete. The Bidding Documents may be obtained at the following location: ENGINEER: David Charles Shermco 1711 Hawkeye Drive Hiawatha, Iowa 52233 (319) 981-9892 Contact: dcharles@shermco.com Submit Bids to OWNER: Mr. Jack Hedgecock Mount Pleasant Municipal Utilities 509 North Adams St. Mount Pleasant, Iowa, 52641

March 2019 Shermco

INSTRUCTIONS TO BIDDERS: 1. Bid Form shall be directed to Mr. Jack Hedgecock, securely sealed and endorsed upon the outside wrapper, “BID FOR FURNISHING AND DELIVERING OF A 69KV DEAD-END STRUCTURE FOR MOUNT PLEASANT MUNICIPAL UTILITIES” at 509 North Adams Street, Mount Pleasant, Iowa 52641. Bids dropped off at the MPU Office will be considered if they are in the possession of Mr. Hedgecock at the close of the bidding period. Technical submittal data may be submitted electronically any time prior to the close of bids. 2. Prices shall remain valid for a period of ninety (90) days after May 16th, 2019. 3. To be considered, Bids shall be submitted with a Bid Security conforming with the latest edition of the Iowa Public Bidding rules in the amount of five (5) percent of the base bid amount. Bid should be submitted on the Bid Proposal Form provided. The form may be reconstituted if the contents are duplicated. Failure to submit the required bid security, complete or submit the Bid proposal form, or provide the required technical submittals may result in rejection of proposal. 4. Payment will be made to the Vendor in an amount of ninety-five percent (95%) of the Proposal value, upon delivery, assembly, and testing of the Switchgear at the Owner’s site. The balance of the amount due the successful bidder will be made within 30 days following the successful energization of the Switchgear by the Owner, subject to the conditions and in accordance with the provisions of Chapters 384 and 573 of the Code of Iowa, no later than 180 days following delivery to site. 5. All bids shall indicate the Iowa sales tax (7% of the base bid amount) as a separate line item determined from the base bid amount. 6. The Owner reserves the right to reject any and all Bids, to waive irregularities and informalities therein and to award the purchase in the best interests of the Utility. 7. Exceptions to the specifications are not acceptable. Written questions regarding the specifications may be directed to Mr. David Charles, dcharles@shermco.com by e-mail at the address provided in the contact information. Please do not contact Mr. Hedgecock or any Owner representatives with questions regarding the specifications. 8. Delivery of the switchgear is scheduled for November, 2019.

March 2019 P-1

PROPOSAL

Furnishing and Delivery of a 69 KV Dead-End Structure and Accessories For Mount Pleasant Municipal Utilities

Mt. Pleasant, Iowa 52641

The undersigned agrees to perform the work as specified for the prices as stated: VENDOR NAME: _______________________________________ VENDOR ADDRESS: _______________________________________ VENDOR PHONE: _______________________________________ VENDOR E-MAIL: _______________________________________ VENDOR CONTACT: _______________________________________ BASE BID LUMP SUM BID PRICE: _____________________________________________Dollars (______________) (words) (figures) Iowa Sales Taxes (7% of Base Bid Amount) ADD $_____________ Vendor discount for early payment: DEDUCT $_____________ TOTAL BID AMOUNT: $__________________ NAME (TYPED OR PRINTED): _________________________________ TITLE: _________________________________ BY: _________________________________ (Individual’s signature)

March 2019 P-2

GENERAL: Manufacturer _____________________________________ Factory Location _____________________________________ Delivery after receipt of order ______________________________(weeks) Drawings to be issued ARO Outline Drawings ______________________________(weeks) Electrical Drawings ______________________________(weeks) AS PART OF THIS PROPOSAL, THE FOLLOWING ITEMS ARE TO BE SUBMITTED TO OWNER AND ENGINEER AS PDF FILES VIA EMAIL: Approximate Outline Drawings Bill of Materials Description of Construction and Galvanizing Process General Descriptive Literature for Components Description and Part Number for Circuit Switcher Clarifications

   shermco.com

SECTION 337213 SUBSTATION DEAD-END STRUCTURESS

PART 1 - GENERAL

1.1 SUMMARY OF WORK:

A. DESCRIPTION OF PROJECT: 1. Furnish a new dead end structure and circuit switcher for the new Iris substation

for installation by Others. 2. The dead-end structure is to be a pre-engineered package complete with

foundation design. 3. Receiving, erection, and assembly required at the jobsite will be performed by

the others.

B. PROJECT SCHEDULE: 1. Delivery to site fall 2019.

C. SCOPE: 1. Furnish and deliver all substation structures as shown on the drawings, including

miscellaneous structural steel, electrical components, wire, connectors, and pre-designed concrete foundation designs.

D. WORK INCLUDED: 1. High Voltage connections to Circuit Switcher, Transformer, Surge Arresters. 2. Design and construction of dead-end structure 3. Design of concrete foundations. 4. Instrument Transformers and Surge Arresters 5. 69 kV Circuit Switcher. 6. Conductor, connectors, and materials for a complete installation.

1.2 SUBMITTALS:

A. Submit electronic shop drawings as PDF files. Shop drawings shall indicate: 1. Outline drawings with top, front, and side views of structures with overall

dimensions and weights. 2. Catalog cuts, drawings, manufacturer’s specifications and data, instruction books

and other information necessary to confirm that the equipment and materials comply with the intent of the bid documents.

3. General arrangement and outline drawings showing the following: a. Locations of equipment and outline information. b. Outline of assembled equipment and material components drawn to scale,

including separate outlines of components as necessary. c. Order and arrangement of assembled sections. d. Dimensions of equipment and material weights of assemblies to be

handled separately.

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e. Clearance required for erection, installation, operation, and maintenance. 4. Erection Information:

a. Arrangement of components to be erected and installed identified by piece mark numbers, corresponding to fabrication information and bill of material.

b. Erection, assembly, and installation sequences. c. Tolerances to be maintained in erection, assembly, and installation. d. Locations and details of field welds and other field connections and

attachments. 5. Bills of material:

a. Complete listing of all equipment and material that is shipped unassembled.

b. Complete listing of all assemblies, c. Listing of components by piece numbers corresponding to the fabrications

and erection information. d. Bill of Material identification numbers must match drawing numbers.

B. Submit manufacturer’s installation instructions as electronic files in PDF format. Instructions shall include: 1. Storage procedures and precautions. 2. Handling recommendations and precautions. 3. Examination prior to installation. 4. Assembly and installation. 5. Tests and adjustments prior to energization.

C. Submit with proposal: 1. Bill of material. 2. Lead times.

PART 2 - DESIGN REQUIREMENTS

2.1 DESCRIPTION

A. Design and furnish all structures, equipment, and materials for complete high voltage installation and connection as indicated and as specified with the exception of equipment and materials supplied by others.

2.2 LISTING OF DESIGN REQUIREMENTS:

A. Conform to the requirements of NEMA SG6 and REA Bulletin 65-1 for outdoor substations, equipment and materials. These are minimum requirements which may be superseded by any more stringent requirements of this specification.

B. Conform as nearly as possible to the layouts as indicated; variation to make structures fit the manufacturer's standard equipment or material or to give an improved installation is permissible, provided the following space requirements are maintained. 1. Sufficient space for operation and maintenance of the equipment.

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2. Clearances from fences, structures and other equipment for both the present and future development as indicated is maintained.

C. Conform interphase spacing and clearances to the dimensions that are indicated, unless recommended IEEE and NEMA standards require larger ones.

D. Use only new, unused equipment and materials of first quality and free of defects designed for outdoor service.

E. Basic design level shall be 69kV, 350kV BIL, 25,000 Amps RMS symmetrical.

F. In addition to the requirements of NEMA SG6, all equipment and materials furnished shall meet the specified ratings and performance under all of the following environmental conditions: 1. An altitude of 1000 feet above sea level. 2. An ambient temperature between -40 and 110 degrees Fahrenheit. 3. Uniform Building Code Seismic Zone 0. 4. NESC "Heavy" loading district. 5. Line conductor tension 3000 pounds per wire @ 5° line angle. 6. Static wire tension 2000 pounds per wire @ 15° line angle. 7. Suitable for contaminated environment, i.e. humidity, particulates, salts. 8. Minimum height from top of foundation to bottom of porcelain on equipment and

bus supports shall conform to existing design. 9. Design baseplates and anchor bolts for concrete having an allowable

compressive strength equal to 3000 pounds per square inch in accordance with the ACI building code.

PART 3 - EXECUTION

3.1 DESCRIPTION:

A. This division covers the design, detailing, materials, fabrication, and labor necessary to furnish and deliver all substation steel structures and materials.

B. Major items to be furnished under this division include, but are not limited to, the items listed below: 1. Dead end ‘H’ structure with foundation design. 2. Circuit switcher and foundation design (S&C 597736-AE10H2KMRTT2VY). 3. Surge arresters: (3) 72kV class, 57kV MCOV 4. Three metering accuracy combined VT-PT instrument transformers with current

ratio 400:5 and relay accuracy. 5. Conductors from dead end to transformer: #336 MCM Linnet ACSR. 6. Suspension insulators: (10 strings) 10” Ball-Socket, 6 per string. 7. Operating grounding pads. 8. Grounding material for provided equipment. 9. Anchor bolts and templates for all foundations designed. 10. All connection, mounting, and anchor hardware for above listed equipment.

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C. 69 kV Circuit Switcher: 1. S&C Electric Model 2030, Part Number 597736-AE10H2KMRTT2VY 2. 69KV 84-inch spacing, 1200 AMP, 350 KV BIL 3. 25-KA Fault Interrupting rating 4. Two mounting pedestals 5. Features:

· 48V DC control voltage (-A) · 10 foot mounting pedestal (-E10) · 240V AC heater voltage (-H2) · Space Heater T-Stat (-K) (Non-Adjustable) · Position Indicating Lamps (-M) · Remote Gas-Density Monitor (-R) · Trip-Circuit-Monitoring Relay (-T) · Loss of Control Voltage Relay (ac/dc) (-T2) · Duplex Receptacle w/Control Cabinet Light (V) · Local-Remote Selector Switch.(-Y)

6. Anchor Bolts – eight (8) required, part number S-81365-1

D. All items listed above shall be designed to match or conform to the enclosed drawings as much as possible.

3.2 QUALITY ASSURANCE:

A. Design of the structures shall conform to the requirements of the following, as specified and as modified by provisions of this specification: 1. American Institute of Steel Construction (AISC).

a. Manual of Steel Construction. 2. National Electrical Manufacturers Association (NEMA).

a. SG6 - Power Switching Equipment. b. TT1 - Tapered Tubular Steel Structures.

3. Rural Utilities Service (RUS). a. (REA) Bulletin 65-1.

4. American Concrete Institute (ACI). a. 318-77 Building Code Requirements of Reinforced Concrete.

5. International Conference of Building Officials. a. Uniform Building Code.

B. Structures shall be fabricated, assembled and tested in conformance with the latest revision of the following, as applicable. 1. American National Standards Institute (ANSI).

a. B18.2.1 - Square and Hex bolts and Screws including Askew Head bolts, Hex Cap Screws, and Lag Screws.

b. B18.2.2 - Square and Hex Nuts. 2. American Society for Testing and Materials (ASTM).

a. A6 - General Requirements for Delivery of Rolled Steel Plates, Shapes, Sheet Piling, and Bars for Structural use.

b. A36 - Structural Steel.

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c. A90 - Tests for Weight of Coating on Zinc-Coated (Galvanized) Iron or Steel Articles.

d. A123 - Zinc (Hot-Galvanized) Coatings on Products Fabricated from Rolled, Pressed, and Forged Steel Shapes, Plates, Bars, and Strips.

e. A143 - Safeguarding Against Embrittlement of Hot-Dip Galvanized Structural Steel Products and Procedure for Detecting Embrittlement.

f. A153 - Zinc Coating (Hot Dip) on Iron and Steel Hardware. g. A239 - Locating the Thinnest Spot in a Zinc (Galvanized) Coating on Iron

or Steel Articles by the Preece Test (Copper Sulfate Dip). h. A307 - Carbon Steel Externally and Internally Threaded Standard

Fasteners. i. A325 - High Strength Bolts for Structural Steel Joints, Including

Suitable Nuts and Plain Hardened Washers. j. A370 - Mechanical Testing of Steel Products. k. A384 - Safeguarding Against Warpage and Distortion During Hot-Dip

Galvanizing of Steel Assemblies. l. A394 - Galvanized Steel Transmission Tower Bolts and Nuts. (13) A440 -

High-Strength Structural Steel. m. A449 - Quenched and Tempered Steel Bolts and Studs. n. A490 - Quenched and Tempered Alloy Steel Bolts and Structural

Steel Joints. o. A563 - Carbon Steel Nuts. p. A572 - High-Strength Low Alloy Columbium - Vanadium Steels of

Structural Quality. q. A678 - Quenched and Tempered Carbon Steel Plates for Structural

Applications. r. E376 - Coating Thickness by Magnetic-Field or Eddy-current (Electro

magnetic) Test Methods. 3. American Welding Society Structural Welding Code (AWS) D.1.1.

3.3 DESIGN:

A. Structures shall have the number of support points (legs) and general layout indicated.

B. All field connections shall use galvanized bolts and nuts as fasteners. A lock washer or Joslyn MF No. 1 locknut shall be installed. Furnish at least five percent overage of each size bolt, nut, washer, lock washer, locknut, etc., required in assembly. Self-locking type nuts shall not be used. No field welding shall be required.

C. All bolted shear connections shall be designed as bearing connections with the bolts' threads in the shear plane or planes.

D. Deflections of structures under all the specified loads shall be less than those specified in NEMA SG-6.

E. Baseplates and anchor bolts shall be designed for structures and stands to be supported by leveling nuts on the anchor bolts without grouting.

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F. Arrange all structural members so that there are no pockets which can accumulate moisture without draining.

G. Provide all drilling, punching, mounting plates, brackets, etc., for all miscellaneous equipment to be mounted on the structures such as conduit, nameplates, fuses and terminal cabinets, phase identification tags, etc.

H. Movement of the switch stand structure shall be limited to the maximum allowed when subjected to the forces imposed during the opening and closing operation of the switch.

3.4 DETAILS:

A. A 3’ X 4’ switch operating ground pad of galvanized steel or aluminum grating shall be provided for each air switch or circuit switcher operator, and shall be furnished with provisions for ground connections at each end.

B. Each member of a structure shall have identifying numbers and letters (piece marks), keyed to the fabrication and erection drawings with characters a minimum of 1/2-inch high stamped into the steel prior to galvanizing. Piece marks shall be circled with black indelible ink after the galvanizing.

C. Provide specific instructions and torque values required for each type of connection.

3.5 PROTECTIVE COATING:

A. All steel members shall be galvanized after all hole punching, drilling, bending, clipping, coping, welding or other forming or fabricating operations have been completed.

B. Galvanizing shall be done in accordance with ASTM A123 and ASTM A143, except that the minimum thickness shall not be less than 5 mils.

C. Bolts shall be galvanized in accordance with ASTM A123 except that a 1.65 ounce coating shall be provided.

D. A minimum of one gallon of a cold galvanizing compound shall be supplied for field repair of damage to the galvanized coating occurring during shipping or erection.

3.6 ANCHOR BOLTS:

A. All Anchor bolts with two zinc-coated nuts and two flat washers per bolt shall be supplied for all structures specified.

B. Anchor bolts shall be designed for embedment in concrete having a minimum compressive strength of 3000 psi in accordance with ACI 318-77.

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C. The nuts and the threaded portion of anchor bolts plus a minimum of six additional inches shall be galvanized in accordance with ASTM A123.

D. Anchor bolts shall either be shipped as preassembled clusters or shall have templates adequate to properly align the bolts for each individual base plate shipped with them.

E. No anchor bolts shall be furnished in the same size as other of different strength values.

3.7 CONNECTORS AND FITTINGS:

A. Furnish as required to completely erect the substation and connect all equipment and materials installed therein. Include 5% extra connectors.

B. Connectors shall be of the following types: 1. Proper size and design to assure permanent, secure, low resistance

connections. 2. Bolted clamping type for aluminum tubing and aluminum cable connections.

Furnish adequate AFL #2 Electrical Joint Compound for all provided connectors plus 20%.

3. Use tubular aluminum splicing couplers for necessary splices in aluminum tubing. 4. For connections to 4 hole pads, stainless steel bolts, nuts, Belleville washers,

and stainless steel flat washers shall be used. 5. All connections between AAC conductors and equipment stud terminals shall be

made with a stud-to-bolted clamping type conductor termination. 6. Fittings shall develop at least 90 percent of the full strength of the conductor, and

shall be capable of carrying the full current capacity of the conductor. 7. Provide bolted ground connector and flexible grounding jumper for operating

handles of disconnect switches. 8. All grounding connectors in contact with galvanized structure shall be tinned

bronze material. 9. It shall be the Seller's responsibility to furnish all materials so as to have

mechanical and electrical ratings, types, sizes, etc. coordinate with adjacent hardware and fittings.

C. MAINTENANCE EQUIPMENT AND SPARE PARTS: 1. All spare parts standard with manufactured equipment and materials supplied or

required for maintenance. 2. Furnish 5% spare connectors or minimum of 1 for each type.