33 72 63.13 15KV 3-PHASE SWITCH - AS-229.pdf

[AS-229]

[AS-229] 15KV STA. 3 PH. SWITCH

REVISED MM/DD/YY 33 72 63.13 - 1

SECTION 33 72 63.13

ELECTRIC UTILITY SUBSTATION 15KV 1200A 3-PHASE SWITCH

PART 1 – GENERAL

1.01 SUMMARY

A. Section Includes: This specification is intended to cover the minimum requirements for furnishing, testing, assembly and delivering a three pole, single throw, group-operated, 15kV, 1200A, 110 kV BIL, vertical break with arcing horns, horizontal upright mounted switch with a swing handle.

B. Ampere rating, for the switch and other specific requirements are stated in the Invitation to Bid.

C. The supplier shall furnish all parts, including insulators, stainless steel mounting bolts and fabricated galvanized steel structural shape mounting details and all operating mechanism shafts or links of galvanized standard pipe. Owner will furnish supporting structure.

D. Related Requirements: Contract Drawings and general provisions of the Contract, including General and

Supplementary Conditions and Division 01 specification sections, apply to this Section.

1. Section 33 72 23.13, Bus Support Insulators

1.02 REFERENCES

A. Abbreviations and Acronyms:

1. ANSI – American National Standards Institute

2. ASTM – American Society for Testing and Materials

3. IEEE – Institute of Electrical and Electronics Engineers

4. NEMA – National Electrical Manufacturers Association

B. Reference Standards: The following specifications and standards of the organizations and documents listed in this paragraph form a part of the specification to the extent required by the references thereto.

In the event the requirements of the following referenced standards and specifications conflict with the specification section, the requirement of this specification shall prevail. In the event the requirements of any of the following referenced standards and specifications conflict with each other, the more stringent requirement shall prevail.

1. The switch shall conform to the latest revision of ANSI C37.30, C37.32 and C37.34, IEEE, NEMA, and ASTM applicable standards.

a. ANSI C37.30 – Standard Requirements for AC High Voltage Air Switches rated above 1000 V.

b. ANSI C37.32 – High-Voltage Switches, Bus Supports and Accessories Schedule of Preferred

Ratings, Construction Guidelines and Specifications.

c. ANSI C37.34 – Standard Test Code for High-Voltage Switches.

15KV STA. 3PH SWITCH [AS-229]

33 72 63.13 - 2 REVISED MM/DD/YY

1.03 SUBMITTALS

A. Prior to construction of the switches the manufacturer shall submit a complete Approval Drawing package to owner in Adobe.PDF format for review and approval as soon as possible after receiving the purchase order. Approval drawing lead time is a critical component in evaluating which bid to select.

B. After approval the manufacturer shall submit three (3) sets of all drawings, factory certified test reports and installation/maintenance instructions to Owner in addition to the two sets included with the switches (see "PACKING AND MARKING").

C. Final drawing package and instruction manuals shall be furnished to Owner in Adobe.PDF format.

D. All correspondence, drawings, instruction books, and emails shall contain Owner’s purchase order number and Owner’s Equipment File number on the invitation to Bid.

E. All submittals shall be sent to:

Knoxville Utilities Board ATTN: Steve Carringer, Engineering 4505 Middlebrook Pike, Knoxville TN 37921 Phone #: 865-558-2681 Email: steve.carringer@kub.org

1.04 PACKING AND MARKING

A. All parts shall be adequately marked to facilitate field erection. Markings shall conform to those shown on the drawings listed below.

B. Boxes and crates shall be marked with Owner purchase order number, switch ratings and mounting position, Owner’s Equipment File number shown on the Invitation to Bid, and any other data as directed in the wording of the purchase order.

C. Each three-pole switch supplied shall be shipped in a separate container with all parts assembled, including insulators, to form a complete switch. Pipe for each three-pole switch shall be bundled, labeled and shipped with the switches. Each switch shall be shipped on a pallet for easy handling by Owner.

D. Two (2) copies of all installation drawings and instructions shall be packaged in weatherproof packaging and securely fastened to each switch furnished. Such package shall be clearly identified as drawings and instructions and noted that no invoices or other shipping materials are enclosed.

E. The drawings shall tabulate the sizes and lengths of operating, offset connecting, and interpole shafts required for each truss length and mounting height shown on Owner drawings.

1.05 WARRANTY

REVISED MM/DD/YY 33 72 63.13 - 3

A. Manufacturer shall ensure the entire switch assembly is free of any defects in design, materials, and workmanship.

B. Manufacturer shall warranty the complete shipment of switches for a minimum of twenty-four (24) months after Owner’s receipt of the order.

C. Any unit that fails during the warranty period may be returned to the Manufacturer for repair or replacement at no cost to Owner.

PART 2 – PRODUCTS

2.01 OWNER’S SWITCH DESCRIPTION

A. Switch 15 kV vertical break, group operated, station class, 1200A, 3-PST, 110 kV BIL, 61kA MOM, KUB stock item number 180281 for horizontal mounting on top of a steel structure. Arcing horns, swing handle, open-close indicators with insulators per specifications 33 72 23.13. Add extra nameplate.

Approval drawings required.

2.02 MANUFACTURED UNITS

A. Regulatory Requirements: Switches shall be in compliance with the latest revision of IEEE and ANSI standards.

B. Performance/Design Criteria:

1. An "OPEN" and "CLOSED" position indicating device shall be provided at or near the operating crank in a conspicuous location.

2. An adequate flexible conductor shall be furnished for connecting the handle end of the vertical operating shaft to Owner's grounding system. The current-carrying capacity of such conductor shall not be less than that of #2/0 AWG copper cable. A connector suitable for connecting the flexible conductor to the vertical operating shaft shall be furnished. The connection shall be such that the stranding of the conductor will not lay against the vertical operating shaft. It is preferable that the angle of approach of the conductor to the shaft be adjustable, but if it is fixed it is desirable that it be at 90 degrees.

3. No part of the operating shaft or swing handle grip shall be insulated.

C. Fabrication:

1. Both hinge and jaw terminal pads, if fabricated of copper or bronze, shall be tinned, top and bottom, by hot dipping in either pure tin or a solder metal bath of at least 50 percent tin. Aluminum pads shall not be tinned.

2. Switches are to be supplied with porcelain insulators per Owner Section 33 72 23.13, attached.

Insulators shall be installed by the Manufacturer prior to shipment.

3. Terminal connectors are not to be supplied.

15KV STA. 3PH SWITCH [AS-229]

33 72 63.13 - 4 REVISED MM/DD/YY

4. Each single-pole element and switch operating mechanism shall have, affixed to the base, a permanent nameplate bearing the following information:

a. Name of manufacturer

b. Type designation

c. Continuous current rating

d. Voltage rating

e. Momentary current withstand rating

f. Manufacturer's shop order or work order number

g. Owner's purchase order number and date

h. Owner’s Equipment File number shown on the Invitation to Bid

5. The operating mechanism shall be a non-removable swing handle, padlock provision, open and close position indicators.

6. Base construction and drilling details are shown on KUB Drawing A-6242.

7. All operating shafts shall be standard galvanized pipe (furnished by Mfg.). Vertical operating shaft shall be supported on non-friction bearing (requiring no lubrication) located near the top. All connections to operating shafts shall be provided with a positive means (self-piercing set screws and/or through-bolts) for prevention of slipping along or around shafts. Connections employing threaded shafts are not acceptable.

8. Switches shall be fully assembled, and factory adjusted for proper operation prior to shipment.

2.03 SOURCE QUALITY CONTROL

A. Tests and Inspections:

1. No switch will be acceptable unless a switch of the same manufacture and type has been inspected and approved by the Owner prior to the issuance of Invitation to Bid. After initial approval of a switch type and design, departure from the approved design will be permitted in minor details only, provided such departures are, in the opinion of Owner, definite improvements over the earlier design.

PART 3 – EXECUTION (NOT USED)

END OF SECTION

REVISED MM/DD/YY 33 72 63.13 - 5

[AS-229] SECTION TITLE

REVISED MM/DD/YY SECTION NUMBER [ATTACHMENT OR SUPPLEMENT] - 1

Master Specification Section Owner: Electric Systems Engineering Department Discipline Reviewer: Electric Systems Engineering Manager Cross-Discipline Reviewer: Procurement Department

Summary of Changes:

Rev. No. Revision Date Description / Justification Author

1. 10/30/2024 Original Issuance

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[PROJECT NAME]

[PROJECT ID]

SECTION TITLE

SECTION NUMBER - 2 REVISED MM/DD/YY

KUB AS-229 BID DATA SHEET

(MUST BE COMPLETED BEFORE BID WILL BE ACCEPTED)

Switch Type (circle one): Lattice Horizontal Lattice Vertical

Switch Voltage Class: kV

Switch Continuous Current Rating: Ampere

Switch Momentary Current Rating: Ampere

Lump Sum Cost of each Switch (USD, $): $

Approval Drawing Availability (weeks ARO):

Approval Drawing Review Period (weeks):

Warranty Period (Months) ________________

Shipping Lead Time (weeks ARO):

Switch Meets KUB Specification Requirements? (YES) (NO)

Descriptive Switch Literature Submitted with Bid? (YES) (NO)

References Submitted with Bid? (YES) (NO)

Shipping is Paid by Manufacturer? (YES) (NO)

Is the Switch Crated or Palletized as a single unit with all three poles, assembly/connecting parts, instructions and drawings all secured as one (1) package for Delivery to KUB?

(YES) (NO)

EXCEPTIONS TO SPECIFICATION, if any:

Company:

Address:

Person Authorized to Sign Bid:

Signature:

E-mail Address:

Direct Phone No.: ____________________________________

3 part 3 – EXECUTION (not used)