15kV Switches for Hwy 411 Substation BID # 20-26

Location:	Tennessee
Posted:	Mar 11, 2026
Due:	Apr 1, 2026
Agency:	City of Maryville
Type of Government:	State & Local
Category:	59 - Electrical and Electronic Equipment Components
Publication URL:	To access bid details, please log in.

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City of Maryville

Purchasing Department - Utilities

332 Home Avenue

Maryville, TN 37801

(865) 273-3332

March 11, 2026

The City of Maryville (hereinafter City) will receive electronically or hard copy submitted bids until 2:00

p.m. Eastern Time, April 01, 2026, for 15kV Switches for Hwy 411 Substation. The bid opening will be held

in the Operations Center Purchasing Office located at 332 Home Avenue, Maryville, Tennessee 37801.

All prices quoted must be F.O.B. to the City of Maryville Operation Center located at 332 Home Avenue,

Maryville, TN 37801. The City of Maryville reserves the right to reject any or all bids; City reserves the right

to award on an item-by-item basis, schedule basis, all or none basis, or multiple award. City reserves the

right not to award this solicitation. Unsigned or late bids will not be considered under any circumstances.

Bids will be awarded based on price, previously demonstrated performance of products and/or services,

and ability to deliver in a timely manner.

Note on Shipping: Prices for all products shall reflect your anticipated shipping costs for the entire delivery.

NO AUTOMATIC FREIGHT OR FUEL SURCHARGE ADD-ONS WILL BE ACCEPTED. Any fuel surcharge

which you believe is necessary must be agreed upon by the City’s designee prior to shipping. Failure to

deliver in a timely manner per bid specifications may result in cancellation of contracts.

SUBMIT QUESTIONS: Prospective suppliers may submit questions concerning this solicitation until 4:30

p.m. Eastern Time on March 19, 2026. Submit questions via email to Karen Smitherman at

kdsmitherman@maryville-tn.gov. After the date and time that the supplier receives this solicitation, any

contact initiated by any supplier with any City representative concerning this solicitation, other than the

Purchasing Office representative listed herein, is strictly prohibited. Any such unauthorized contact may

cause the disqualification of the supplier from this procurement transaction.

Please quote your prices in the unit of measure requested on the bid form (failure to do so will result

in bid rejection) and submit your bid to Karen Smitherman, Buyer and Strategic Sourcing Specialist, City

of Maryville at:

For paper submittals please use the mailing address:

ATTN: Karen Smitherman, 332 Home Avenue, Maryville, TN 37801

For electronic submittals please use the email address:

COMsealedbid@maryville-tn.gov

Please mark the subject line “Bid No. 20-26 for 15kV Switches for Hwy 411 Substation”

Opening Date/Time: April 01, 2026, at 2:00 p.m. Eastern Time

Sincerely,

Karen D. Smitherman, NIGP-CPP, CPPB, PMP

Buyer & Strategic Sourcing Specialist

City of Maryville, Tennessee

Page 1 of 4

1. Project Overview

The successful bidder (packager) shall furnish two 15kV switches and necessary

materials for complete mounting and operation in accordance with the specifications

and drawings herein. Some steel and mounting hardware will be necessary but may

be supplied by the switch company, if preferred. See drawing for details. Switches

will be installed by the City of Maryville line crews.

2. Specifications

Three-Pole, Group-Operated, Air-Break Switches

The packager must submit their bid containing the switches specified herein. All

switches must conform to Table 3 of the American National Standards Institute

(hereinafter “ANSI”) C37.32-2002 or latest edition.

All three-pole, air-break switches shown in the drawings shall be supplied per the

specifications and drawings. All air-break switches shall be furnished with gray, post-

type insulators adequate to maintain the specified switch BIL rating. Construction of

the switches shall be such that the switch operation is not unduly impaired during icing,

high temperatures, or by industrial contaminates.

The main bearings on the rotating insulator shall be equipped with enclosed dust-proof

seals. The balls shall be stainless steel on a non-corrosive race of differing hardness;

or the use of Timkin tapered roller bearings shall be use don heavy-duty switches.

Aluminum housing and races are not acceptable. The bearings may be of the dry-

type or permanently filled with grease of the Bentone grade for maintenance-free

service. Sleeve-type bushings on the main switch bearing are acceptable; only ultra-

high molecular weight polyethylene is acceptable.

Switches shall be supplied completely assembled and adjusted by the

manufacturer.

(1) Transformer Disconnect Switches (3117, 3217)

Two 15kV, three-phase, gang-operated, air-break switches shall be supplied. The

switches shall be vertical break, manually operated, aluminum or copper, and

provided with vacuum interrupters. The switches shall have a continuous current

rating of 2000 Amperes RMS at the 30° Centigrade rise rating per National Electrical

Manufacturers Association (hereinafter “NEMA”) standards with a BIL rating of 110

kV. Switches shall be Cleaveland/Price type V2-C or V2-CA, complete with gray

porcelain post-type insulators, upright mounting, a swing-handle operating

mechanism, inter-phase linkages and proper braided shunts for grounding the

operating handle. Switches shall be provided with vacuum interrupters for full load

interrupting capabilities of power transformers. No alternates will be accepted for this

solicitation as these will be installed into our existing plant.

3. Approval Drawings

The successful bidder must submit one set of drawings to the Owner and the Engineer

(electronic submittal is preferred) for approval no later than twelve weeks after the

contract is signed. Contact information will be provided to the awarded bidder.

Page 2 of 4

4. Material and Equipment

All structural steel shall conform to ASTM International (hereinafter “ASTM”) A36-87

specifications. All bolts, except anchor bolts, shall conform to ASTM-A325-86 or

A307-86a. All structural steel pipe and square tube sections shall conform to ASTM

A53-88 grade B and ASTM A501-84, respectively. Galvanizing for all structural steel

shall conform to A123. Hot dip galvanizing for all bolts, nuts, and washers shall be

done in accordance with the latest revision of the “Standard Specifications for Zinc

Coating (Hot Dip) on Iron and Steel Hardware,” ASTM A153. Excess spelter shall be

removed by centrifugal spinning. All anchor bolts shall be galvanized to at least 12

inches below the threaded surface.

All bolted electrical connections shall use stainless steel bolts, stainless steel flat

washers, stainless steel Belleville washers, and silicon bronze nuts. In all cases

that require Belleville washers, at least one shall be used on each side of the

connection. All extremely thin or extremely thick connections shall be provided with

two Belleville washers on each side of the connection. All bolts shall include

certification markings. Stainless steel flat washers shall be a minimum of 1/16” thick.

Belleville washers shall be approximately 7/64” thick and shall be work-hardened

and/or spring steel. The Contractor shall furnish the Engineer a sample of the

bolts, Belleville washers, and the flat washers for approval, as well as the spec

sheet for the Belleville washers with torque specifications for approval prior to

use or installation. The Contractor shall never exceed the Belleville washer

manufacturer’s recommended maximum torque.

All bolted bus connections shall be made such that a low-resistance permanent

connection will be maintained. All adjacent surfaces of the connection shall be coated

with Alcoa No. 2 electrical joint compound of NO-OX-ID grade A special and then

abraded through the coating with a wire brush or abrasive cloth. The plated contact

surfaces shall not be scratch-brushed.

For all switches specified herein, the following table relating continuous current to

withstand/momentary current shall be used (Values taken from ANSI C37.32-2002

Table 3):

Rated Continuous

Short-time

Current (A)

Withstand (kA)

600

1200

2000

NOTE: All ratings are based on 30°C rise.

Peak

Withstand (kA)

114

Asymmetrical

Momentary (kA)

Page 3 of 4

Bid Form

PRICING: Suppliers must complete the pricing listed below and submit the forms with their

response. Failure to do so will result in your bid being deemed non-responsive. Pricing

will include all work, equipment, and supplies to provide the products and/or services listed.

Suppliers are to provide firm pricing for each item as listed in the table below. The price listed

must include all costs associated with the work (e.g.: insurance, salaries, training, per diems,

overhead, profit, technology fees, licenses, permits [if required], training, fuel surcharges, and

vehicle costs). No further compensation will be paid by City unless authorized in writing by the

City of Maryville designee and approved by the City Manager of the City of Maryville. Written

approval must be received prior to products being delivered and/or work being scheduled or

completed.

DESCRIPTION

QUANTITY

PRICE PER EACH

TOTAL PRICE

15kV, three-phase, gang-

operated, air-break switch

Confirm brand name and type of

switch being bid.

ADDITIONAL INFORMATION

Weight (per each)

Delivery (ARO)

Approval Drawing Available (ARO)

LBS

Weeks

☐ We are interested in being paid via Automatic Clearing House (ACH).

Company Name: _____________________________________________

Authorizing Signature: _________________________________________

Title: _______________________________________________________

Phone: _____________________________________________________

Email: ______________________________________________________

Page 4 of 4

This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.