ADDENDUM_2_2026-04-193.pdf
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- 3534-20260420085949 Columbus
- Solicitation number
- 3170035553
- Issued by
- Lee County, Mississippi
About this file
This Addendum Number 2, issued April 19, 2026, by Atwell & Gent, P.A., modifies the Request for Proposals for Electric Distribution Materials & Appurtenances (Material Only) for Parkview Development, Project Number 119E3031, issued by the Columbus Redevelopment Authority in Columbus, Mississippi. The addendum revises quantities for Bid Items #91 (15 kV 200A Loadbreak Junction Bars, Three-Position) and #98 (Secondary Pedestal, Base & Cover), and adds Appendix E containing specifications for pad-mounted transformers. The bid encompasses 101 line items organized into 17 groups, including steel poles (16 units total), overhead utility wire (approximately 12,129 linear feet), crossarms and supports, distribution insulators, conductor accessories, switches and arresters, guying materials, grounding equipment, overhead transformers (7 units), hardware, equipment brackets, underground primary and secondary cables (8,690 linear feet combined), underground conductor accessories, pad-mounted transformers (13 units), secondary pedestals (17 units), and conduit materials (330 linear feet). Prospective bidders must acknowledge receipt of the addendum in the bid form to avoid disqualification. The original bid deadline was March 12, 2026, though this addendum was issued April 19, 2026, indicating a re-bid process.
The specification documents reference ANSI standards, IEEE guidelines, and NEMA requirements for all materials. Pad-mounted transformers must be 50 kVA, single-phase units rated at 12,470 Grd Y/7,200 volts primary and 240/120 volts secondary, manufactured in the United States by approved manufacturers including ABB, Eaton, Howard Industries, or Ermco. Transformers must be new units with new mineral oil, comply with DOE energy conservation standards (10 CFR Part 431), and include one-year manufacturer warranty. All materials require submission of manufacturer and catalog numbers with unit prices and extended prices. The bid form requires bidders to provide delivery times for each item and acknowledgment of addenda receipt. Bidder qualifications for transformers specify that suppliers must be transformer manufacturers, manufacturer-authorized Mississippi representatives, or manufacturer-authorized Mississippi utility distributors. Factory testing requirements for transformers include no-load losses, total losses, impedance, excitation current, winding resistance, ratio tests, polarity tests, induced potential tests, and impulse tests on at least 10 percent of units prior to shipment.
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Text version
Atwell & Gent, P.A.
Starkville, Mississippi
ADDENDUM NUMBER 2
DATE: April 19, 2026
PROJECT: Electric Distribution Materials & Appurtenances (Material Only) for Parkview Development
PROJECT NUMBER: 119E3031
OWNER: Columbus Redevelopment Authority
TO: Prospective Bidders This Addendum forms a part of the Contract Documents and modifies the March 25, 2026 Request for Proposals document with amendments and additions noted below. Acknowledge receipt of this Addendum in the space provided in the Bid Form. Failure to do so may disqualify the Bidder.
ADDENDUM TABLE OF CONTENTS:
This Addendum consists of one (1) page and three (3) attachments (revised Appendix A, Appendix B, and new Appendix E).
SPECIFICATION CHANGES
1. Changes in quantities required for Bid Item #91 shown in Appendix A and Appendix B.
2. Changes in quantities required for Bid Item #98 shown in Appendix A and Appendix B.
3. Add Appendix E - Specifications for Pad Mounted Transformers.
MATERIALMAN'S DETAILED BID FORM
ELECTRIC DISTRIBUTION MATERIALS AND APPURTENANCES (MATERIAL ONLY)
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
1 30/4 STEEL POLE. REFER TO TECHNICAL SPECIFICATION IN
APPENDIX C. 1 EA
2 45/H1 STEEL POLE. REFER TO TECHNICAL SPECIFICATION IN
APPENDIX C. 9 EA
3 50/H1 STEEL POLE. REFER TO TECHNICAL SPECIFICATION IN
APPENDIX C. 6 EA
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
4 WIRE, COVERED, THHN, #4 COPPER 20 LF
5 WIRE, COVERED, THHN, #2 COPPER 40 LF
6 WIRE, COVERED, THHN, #1/0 COPPER 20 LF
7 WIRE, COVERED, THHN, #2/0 COPPER 60 LF
8 WIRE, 336.4 KCMIL 18/1 ACSR "MERLIN" 5,694 LF
9 WIRE, 477.0 kCMIL 18/1 ACSR "PELICAN" 4,015 LF
10 WIRE, #1/0 AL TRIPLEX "NERTINA" 250 LF
11 WIRE, #2 AL TRIPLEX "CONCH" 500 LF
12 WIRE, GROUND, #4 SD BARE SOLID COPPER 1,000 LF
13 WIRE, GROUND, #2 SD BARE STRANDED COPPER 300 LF
14 WIRE, WILDLIFE, 15 KV, #4 COPPER 250 LF
TOTAL BID FOR GROUP #1 (BID ITEMS #1 THROUGH #3)
GROUP #1 (STEEL POLES)
GROUP #2 (OVERHEAD UTILITY WIRE)
TOTAL BID FOR GROUP #2 (BID ITEMS #4 THROUGH #14)
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
15 CROSSARM, TANGENT, FIBERGLASS, 8', GRAY 9 EA
16 CROSSARM, TANGENT, FIBERGLASS, 10' GRAY 2 EA
17 CROSSARM, DEADEND, FIBERGLASS, 8', GRAY 4 EA
18 CROSSARM, DEADEND, FIBERGLASS, 10', GRAY 5 EA
19 PIN, CROSSARM, CLAMP TYPE 14 EA
20 PIN, CROSSARM, PIN TYPE 14 EA
21 CLEVIS, SECONDARY, ONE SPOOL 8 EA
22 PIN, RIDGE, FIBERGLASS, 2" x 18" 14 EA
23 PIN, HORIZONTAL, FIBERGLASS, 1-1/2" x 18" 1 EA
24 FIBERGLASS EXTENSION LINK, CLEVIS-EYE, 12" 18 EA
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
25 INSULATOR, DEADEND, POLYMER, 35 KV 60 EA
26 INSULATOR, PIN TYPE, 15 KV 48 EA
27 INSULATOR, SPOOL 24 EA
TOTAL BID FOR GROUP #4 (BID ITEMS #25 THROUGH #27)
GROUP #3 (STEEL POLES)
TOTAL BID FOR GROUP #3 (BID ITEMS #15 THROUGH #24)
GROUP #4 (DISTRIBUTION INSULATORS)
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
28 CLAMP, DEADEND, #336.4 KCMIL - 954 kCMIL ACSR 70 EA
29 CLAMP, DEADEND, #4/0 ACSR - 556 KCMIL ACSR 10 EA
30 CLAMP, HOTLINE, #8 - #2/0 CU 25 EA
31 CLAMP, STIRRUP, #6- #2/0 ACSR 25 EA
32 CONNECTOR, MULTI TAP 21 EA
33 SERVICE GRIP, #2 AL TRIPLEX 5 EA
34 SERVICE GRIP, #1/0 AL TRIPLEX 10 EA
35 CONNECTOR, COMPRESSION, #4-6 CU-#4-6 CU 50 EA
36 CONNECTOR, COMPRESSION, #336.4 KCMIL ACSR-#2-#6 CU 50 EA
37 CONNECTOR, COMPRESSION, #2 CU-#4 CU 10 EA
38 CONNECTOR, COMPRESSION, #4/0-477.0 KCMIL ACSR-#4/0-
477.0 kCMIL ACSR 30 EA
39 CONNECTOR, COMPRESSION, #6 CU- GUY STRAND 10 EA
40 TOP TIE, 477.0 ACSR 50 EA
41 ALUMINUM TIE WIRE, #4 (25 LB SPOOL) 1 EA
42 TERMINAL, COMPRESSION, ALUMINUM OR COPPER, CABLE
TO NEMA 2 HOLE PAD, 477/0 KCMIL ACSR 6 EA
GROUP #5 (DISTRIBUTION CONDUCTOR ACCESSORIES)
TOTAL BID FOR GROUP #5 (BID ITEMS #28 THROUGH #42)
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
SWITCH, LOADBREAK, THREE POLE SIDEBREAK, 25 KV, 600
AMPERES, UNITIZED, HOOKSTICK TYPE, COMPLETE WITH
ALL MOUNTING HARDWARE
1 EA
44 SWITCH, FUSED CUTOUT, 15 KV, 100 AMPERE 26 EA
45 ARRESTER, SURGE, DISTRIBUTION CLASS, 10 KV 16 EA
46 ARRESTER, SURGE, RISER CLASS, 10 KV 10 EA
47 FUSE, EXPULSUION, 15 KV, 65 AMP TYPE "T" 10 EA
48 FUSE, EXPULSUION, 15 KV, 3 AMP TYPE "K" 3 EA
49 FUSE, EXPULSUION, 15 KV, 6 AMP TYPE "K" 2 EA
50 FUSE, EXPULSUION, 15 KV, 10 AMP TYPE "K" 2 EA
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
51 3/8" H.S. STEEL GUY STRAND, FURNISH ON 250' COILS 250 EA
52 7/16" E.H.S. STEEL GUY STRAND, FURNISH ON 250' COILS 250 EA
53 ANCHOR, POWER SCREW, 1-1/2" SS, 8/10" DOUBLE HELIX 5 EA
54 SQUARE SHAFT EXTENSION, 1-1/2" x 5' 10 EA
55 GUY TERMINATION, TWINEYE, 1-1/2" SS 5 EA
56 GUY STRAIN INSULATOR, FIBERGLASS, CLEVIS- ROLLER,
15,000 LB RATING, 144" LENGTH 2 EA
57 GUY STRAIN INSULATOR, FIBERGLASS, CLEVIS- ROLLER,
21,000 LB RATING, 144" LENGTH 4 EA
58 GUY GRIP, 3/8", PREFORMED 50 EA
59 GUY GRIP, 7/16", PREFORMED 25 EA
60 POLE EYE PLATE, WITHOUT CLEATS, 3" BOLT SPACING
REQUIRED 25 EA
61 GUY THIMBLE, CLEVIS TYPE 25 EA
62 GUY MARKER, YELLOW PLASTIC, 8' LENGTH 30 EA
TOTAL BID FOR GROUP #6 (BID ITEMS #43 THROUGH #50)
GROUP #7 (GUYING)
TOTAL BID FOR GROUP #7 (BID ITEMS #51 THROUGH #62)
GROUP #6 (DISTRIBUTION SWITCHES & ARRESTERS)
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
63 GROUND ROD, COPPER CLAD, 5/8" X 8' 16 EA
64 CLAMP, GROUND ROD, BRONZE, 5/8" 16 EA
65 GROUND ROD, COPPER CLAD, 3/4" X 10' 17 EA
66 CONNECTOR, COMPRESSION, 3/4" ROD - #2 CU 17 EA
67 CONNECTOR, COMPRESSION, #4/0-#2 CU - #4/0-#2 CU 75 EA
68 TRANSFORMER TANK GROUND LUG, #8-#2/0 CU, 1/2"-13
THREAD 50 EA
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
TRANSFORMER, CONVENTIONAL, SINGLE PHASE, 15 KVA,
12470Y/7200-120/240 VOLTS. REFER TO TECHNICAL
SPECIFICATION IN APPENDIX D.
3 EA
TRANSFORMER, CONVENTIONAL, SINGLE PHASE, 25 KVA,
12470Y/7200-120/240 VOLTS. REFER TO TECHNICAL
SPECIFICATION IN APPENDIX D.
2 EA
TRANSFORMER, CONVENTIONAL, SINGLE PHASE, 50 KVA,
12470Y/7200-120/240 VOLTS. REFER TO TECHNICAL
SPECIFICATION IN APPENDIX D.
2 EA
GROUP #9 (OVERHEAD TRANSFORMERS)
TOTAL BID FOR GROUP #9 (BID ITEMS #69 THROUGH #71)
GROUP #8 (GROUNDING)
TOTAL BID FOR GROUP #8 (BID ITEMS #63 THROUGH #68)
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
72 BOLT, MACHINE, 5/8" X 12" 75 EA
73 BOLT, MACHINE, 5/8" X 14" 75 EA
74 BOLT, MACHINE, 5/8" X 16" 50 EA
75 EYEBOLT, 5/8" X 12" 25 EA
76 EYEBOLT, 5/8" X 14" 25 EA
77 EYEBOLT, 5/8" X 16" 25 EA
78 EYENUT, 5/8" 25 EA
79 LOCKNUT, MF, 3/4" 25 EA
80 LOCKNUT, MF, 5/8" 200 EA
81 WASHER, SQUARE, 2-1/4", 11/16" HOLE 200 EA
82 WASHER, 3" SQUARE, CURVED, 11/16" HOLE 50 EA
83 WASHER, 3" SQUARE, CURVED, 13/16" HOLE 50 EA
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
84 BRACKET, EQUIPMENT, SINGLE PHASE, FIBERGLASS 17 EA
85 BRACKET, EQUIPMENT, THREE PHASE, FIBERGLASS 1 EA
86 BRACKET, TRANSFORMER CLUSTER MOUNT, COMPLETE
WITH MOUNTING HARDWARE 1 EA
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
87 WIRE, #4/0 ALUMINUM 15KV UD CABLE 5,690 LF
TOTAL BID FOR GROUP #10 (BID ITEMS #72 THROUGH #83)
GROUP #11 (EQUIPMENT BRACKETS)
TOTAL BID FOR GROUP #11 (BID ITEMS #84 THROUGH #86)
GROUP #12 (UTILITY UNDERGROUND PRIMARY CABLE WIRE)
TOTAL BID FOR GROUP #12 (BID ITEM #87)
NOTE: MAXIMUM REEL SIZE SHALL BE 72" FLANGE HEIGHT x 56" OUTSIDE WIDTH. ACTUAL CABLE LENGTHS PER REEL SHALL NOT BE LESS THAN SPECIFIED OR MORE 5% GREATER THAN SPECIFIED
(MINIMUM TOLERANCE 0%, MAXIMUM TOLERANCE 5%)
GROUP #10 (HARDWARE)
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
CABLE, UNDERGROUND TRIPLEX, #4/0 ALUMINUM,
RUGGEDIZED OR HI-SCORE, SWEETBRIAR, PACKAGED ON
THREE (3) 1000' REELS
3,000 LF
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
89 200A 15 KV 3-WAY CABLE JUNCTION ENCLOSURE 2 EA
90 200A 15 KV KV 3-WAY CABLE JUNCTION ENCLOSURE BOX
PAD 2 EA
91 15 KV 200A LOADBREAK JUNCTION BARS, THREE-POSITION 6 EA
92 15 KV 200A FEEDTHRU PARKING STAND, 2-WAY 1 EA
93 200A 15 KV LOADBREAK ELBOW TERMINATION, #4/0 AL
WITH CABLE SHIELD 43 EA
94 BUSHING CAP, 15 kV, 200A LOADBREAK 6 EA
95 CABLE TERMINATOR, 15 KV, FOR #4/0 AL 15 KV 220 MIL JCN
CABLE 13 EA
96 10KV ELBOW SURGE ARRESTER 1 EA
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
97 50 KVA 1P PAD-MOUNTED TRANSFORMER 13 EA
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
98 SECONDARY PEDESTAL, BASE & COVER, WITH HEX HEAD
BOLTS & 3-350 MCM CONNECTORS 17 EA
TOTAL BID FOR GROUP #14 (BID ITEMS #89 THROUGH #96)
TOTAL BID FOR GROUP #15 (BID ITEM #97)
GROUP #15 (PAD MOUNTED TRANSFORMERS)
TOTAL BID FOR GROUP #16 (BID ITEM #98)
GROUP #16 (SECONDARY PEDESTALS)
GROUP #13 (UTILITY UNDERGROUND SECONDARY CABLE WIRE)
TOTAL BID FOR GROUP #13 (BID ITEM #88)
GROUP #14 (UNDERGROUND CONDUCTOR ACCESSORIES)
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
Bid Item Description Unit Price
No.
Req'd Unit Extended Price Manufacturer & Catalog No. Delivery Time
99 CONDUIT, CABLE RISER, SCHEDULE 80 PVC, 2" 330 LF
100 CONDUIT STANDOFF BRACKET AND T-SLOT BAR,
ALUMINUM 32 EA
101 CONDUIT STRAP, 2" 44 EA
TOTAL BID FOR GROUP #17 (BID ITEMS #99 THROUGH #101)
GROUP #17 (CONDUIT)
BILL OF MATERIALS
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
ITEM # ITEM MANUFACTURER & CATLOG NO.
QTY
REQ'D
GROUP #1 (STEEL POLES)
1 30/4 STEEL POLE. REFER TO TECHNICAL SPECIFICATION IN APPENDIX C. VALMONT, MEYERS, GRID STRUCTURES, OR MD HENRY 1 2 45/H1 STEEL POLE. REFER TO TECHNICAL SPECIFICATION IN APPENDIX C. VALMONT, MEYERS, GRID STRUCTURES, OR MD HENRY 9 3 50/H1 STEEL POLE. REFER TO TECHNICAL SPECIFICATION IN APPENDIX C. VALMONT, MEYERS, GRID STRUCTURES, OR MD HENRY 6
GROUP #2 (OVERHEAD UTILITY WIRE)
4 WIRE, COVERED, THHN, #4 COPPER SOUTHWIRE OR EQUAL 20
5 WIRE, COVERED, THHN, #2 COPPER SOUTHWIRE OR EQUAL 40
6 WIRE, COVERED, THHN, #1/0 COPPER SOUTHWIRE OR EQUAL 20
7 WIRE, COVERED, THHN, #2/0 COPPER SOUTHWIRE OR EQUAL 60
8 WIRE, 336.4 KCMIL 18/1 ACSR "MERLIN" SOUTHWIRE OR EQUAL 5,694
9 WIRE, 477.0 kCMIL 18/1 ACSR "PELICAN" SOUTHWIRE OR EQUAL 4,015
10 WIRE, #1/0 AL TRIPLEX "NERTINA" SOUTHWIRE OR EQUAL 250
11 WIRE, #2 AL TRIPLEX "CONCH" SOUTHWIRE OR EQUAL 500
12 WIRE, GROUND, #4 SD BARE SOLID COPPER SOUTHWIRE OR EQUAL 1,000
13 WIRE, GROUND, #2 SD BARE STRANDED COPPER SOUTHWIRE OR EQUAL 300
14 WIRE, WILDLIFE, 15 KV, #4 COPPER SOUTHWIRE OR EQUAL 250
GROUP #3 (DISTRIBUTION CROSSARMS & SUPPORTS)
15 CROSSARM, TANGENT, FIBERGLASS, 8', GRAY PUPI "TB2000-096-04X2", ALFO "FTA20-4-096-A-IP" OR EQUAL 9 16 CROSSARM, TANGENT, FIBERGLASS, 10' GRAY PUPI "TB2000-120-05X2", ALFO "FTA20-6-120-A-IP" OR EQUAL 2 17 CROSSARM, DEADEND, FIBERGLASS, 8', GRAY PUPI "DA3000-096-E2-B7X2", ALFO "FDA30-2-96-EB-IP-FG" OR EQUAL 4 18 CROSSARM, DEADEND, FIBERGLASS, 10', GRAY PUPI "DA3000-120-E2-B9X2", ALFO "FDA30-2-120-EB-IP-FG" OR EQUAL 5
19 PIN, CROSSARM, CLAMP TYPE MPS "J3322Z", HPS "14322P", ALFO "AF3322" 14
20 PIN, CROSSARM, PIN TYPE "MPS "J626Z", HPS "883P", ALFO "AF207" 14
21 CLEVIS, SECONDARY, ONE SPOOL MPS "J251", HPS "C2070024", ALFO "AF1300", ALLIED BOLT "8479" 8 22 PIN, RIDGE, FIBERGLASS, 2" x 18" MPS "G1HDR118AS1", HPS "RPH181", ALFO "F1CS-HV-V18-RHP1" 14 23 PIN, HORIZONTAL, FIBERGLASS, 1-1/2" x 18" MPS "G1MDA118AS1", HPS "1SBM18H1", ALFO "F1CS-MV-18-BHP-1" 1 24 FIBERGLASS EXTENSION LINK, CLEVIS-EYE, 12" MPS "GTCE15-12R", HPS "GS16012CE", ALFO "FGS16-12CT" 18
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
ITEM # ITEM MANUFACTURER & CATLOG NO.
QTY
REQ'D
GROUP #4 (DISTRIBUTION INSULATORS)
25 INSULATOR, DEADEND, POLYMER, 35 KV MPS "DS35M", PPC "PDEI-35", GAMMA "PS035", ALFO "DEI-35" 60
26 INSULATOR, PIN TYPE, 15 KV PPC "366-S", VICTOR "6R", GAMMA "6183-R" 48
27 INSULATOR, SPOOL PPC "5101", VICTOR "VI 2612", GAMMA "8442-70" 24
GROUP #5 (DISTRIBUTION CONDUCTOR ACCESSORIES)
28 CLAMP, DEADEND, #336.4 KCMIL - 954 kCMIL ACSR MPS "HDSO-116-2", HPS "ADEZ116N", ALFO "DES-HDSO-116" 70 29 CLAMP, DEADEND, #4/0 ACSR - 556 KCMIL ACSR MPS "ASO-858-2-N", HPS "ADEZ88N", ALFO "DES-ASO-858-2-N" 10 30 CLAMP, HOTLINE, #8 - #2/0 CU MPS "C-1520", HPS "BC20", ALFO "AF-BC20", R1MA "BHLC-100" 25
31 CLAMP, STIRRUP, #6- #2/0 ACSR MPS "L8-0-N", HPS "AHLS022019E" 25
32 CONNECTOR, MULTI TAP UTILICO "PTT4-250", BLACKBURN "ABP440", POLARIS "PPT250-4" 21
33 SERVICE GRIP, #2 AL TRIPLEX PREFORMED "SG4504" OR EQUAL 5
34 SERVICE GRIP, #1/0 AL TRIPLEX PREFORMED "SG4506" OR EQUAL 10
35 CONNECTOR, COMPRESSION, #4-6 CU-#4-6 CU BLACKBURN "CF-44-1" OR EQUAL 50
36 CONNECTOR, COMPRESSION, #336.4 KCMIL ACSR-#2-#6 CU BURNDY "YHN-500", BLACKBURN "WR699" OR EQUAL 50
37 CONNECTOR, COMPRESSION, #2 CU-#4 CU BLACKBURN "CF-44-1" OR EQUAL 10
38 CONNECTOR, COMPRESSION, #4/0-477.0 KCMIL ACSR-#4/0-477.0 kCMIL ACSR BURNDY "YHN-525" OR BLACKBURN "WR885" 30
39 CONNECTOR, COMPRESSION, #6 CU- GUY STRAND BURNDY "UCK1UL", BLACKBURN "K1" 10
40 TOP TIE, 477.0 ACSR PLP UTF-1211 50
41 ALUMINUM TIE WIRE, #4 (25 LB SPOOL) PRIORITY WIRE & CABLE "AL-TIEWIRE-4" OR EQUAL 1
TERMINAL, COMPRESSION, ALUMINUM OR COPPER, CABLE TO NEMA 2 HOLE PAD,
477/0 KCMIL ACSR SEFCOR "AL-90-2B" OR EQUAL 6
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
ITEM # ITEM MANUFACTURER & CATLOG NO.
QTY
REQ'D
GROUP #6 (DISTRIBUTION SWITCHES & ARRESTERS)
SWITCH, LOADBREAK, THREE POLE SIDEBREAK, 25 KV, 600 AMPERES, UNITIZED,
HOOKSTICK TYPE, COMPLETE WITH ALL MOUNTING HARDWARE S&C "147442R4-H-A2", HPS "AR113FHHL" 1
44 SWITCH, FUSED CUTOUT, 15 KV, 100 AMPERE MPS "SC15HG116-D", HPS "CP710114PB", ALFO "CSG15-100A-110-CB-16KA" 26 45 ARRESTER, SURGE, DISTRIBUTION CLASS, 10 KV MPS "ZHP010-0C00100", HPS "2137097324", ALFO "AHD10B-1GA-4X1-4X" 16 46 ARRESTER, SURGE, RISER CLASS, 10 KV MPS "ZRP010-0C00100", HPS "2216097324", ALFO "ARP10B-1GA-4X1-4X" 10
47 FUSE, EXPULSUION, 15 KV, 65 AMP TYPE "T" HPS "M65T23" OR EQUAL 10
48 FUSE, EXPULSUION, 15 KV, 3 AMP TYPE "K" HPS "M3K23" OR EQUAL 3
49 FUSE, EXPULSUION, 15 KV, 6 AMP TYPE "K" HPS "M6K23" OR EQUAL 2
50 FUSE, EXPULSUION, 15 KV, 10 AMP TYPE "K" HPS "M10K23" OR EQUAL 2
GROUP #7 (GUYING)
51 3/8" H.S. STEEL GUY STRAND, FURNISH ON 250' COILS NATIONAL STRAND, AMERICAN WIRE GROUP OR EQUAL 250 52 7/16" E.H.S. STEEL GUY STRAND, FURNISH ON 250' COILS NATIONAL STRAND, AMERICAN WIRE GROUP OR EQUAL 250 53 ANCHOR, POWER SCREW, 1-1/2" SS, 8/10" DOUBLE HELIX MPS "D6632", HPS "012642AE" 5 54 SQUARE SHAFT EXTENSION, 1-1/2" x 5' MPS "D6620-U", HPS "12656" 10
55 GUY TERMINATION, TWINEYE, 1-1/2" SS MPS "D6604US", HPS "C1020024" 5
GUY STRAIN INSULATOR, FIBERGLASS, CLEVIS- ROLLER, 15,000 LB RATING, 144"
LENGTH MPS "GCC15-144R", HPS "GS16144CC1", ALFO "FGS16-144CR" 2
GUY STRAIN INSULATOR, FIBERGLASS, CLEVIS- ROLLER, 21,000 LB RATING, 144"
LENGTH MPS "GCC21-144R", HPS "GS21144CC1", ALFO "FGS21-144CR" 4
58 GUY GRIP, 3/8", PREFORMED PLP "GDE-1107", HPS "FWDE1107" 50
59 GUY GRIP, 7/16", PREFORMED PLP "GDE-1108", HPS "FWDE1108" 25
60 POLE EYE PLATE, WITHOUT CLEATS, 3" BOLT SPACING REQUIRED MPS "MGA-345N", ALLIED BOLT "22002" 25
61 GUY THIMBLE, CLEVIS TYPE MPS "CT88", HPS "TC1", ALFO "AFCT88" 25
62 GUY MARKER, YELLOW PLASTIC, 8' LENGTH PLP "PG6500SC", MPS "J1493Y" 30
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
ITEM # ITEM MANUFACTURER & CATLOG NO.
QTY
REQ'D
GROUP #8 (GROUNDING)
63 GROUND ROD, COPPER CLAD, 5/8" X 8' ERICO "615883" OR EQUAL 16
64 CLAMP, GROUND ROD, BRONZE, 5/8" ERICO "HDC58R", BURNDY "GRC58" OR EQUAL 16
65 GROUND ROD, COPPER CLAD, 3/4" X 10' ERICO "615883" OR EQUAL 17
66 CONNECTOR, COMPRESSION, 3/4" ROD - #2 CU BURNDY "YSHG3429" OR EQUAL 17
67 CONNECTOR, COMPRESSION, #4/0-#2 CU - #4/0-#2 CU BURNDY "YH2929" OR EQUAL 75
68 TRANSFORMER TANK GROUND LUG, #8-#2/0 CU, 1/2"-13 THREAD MPS "TG-820", HPS "GTCL34A" OR EQUAL 50
GROUP #9 (OVERHEAD TRANSFORMERS)
TRANSFORMER, CONVENTIONAL, SINGLE PHASE, 15 KVA, 12470Y/7200-120/240
VOLTS. REFER TO TECHNICAL SPECIFICATION IN APPENDIX D. ABB/HITACHI, ERMCO, EATON, POWER PARTNERS, HOWARD 3
TRANSFORMER, CONVENTIONAL, SINGLE PHASE, 25 KVA, 12470Y/7200-120/240
VOLTS. REFER TO TECHNICAL SPECIFICATION IN APPENDIX D. ABB/HITACHI, ERMCO, EATON, POWER PARTNERS, HOWARD 2
TRANSFORMER, CONVENTIONAL, SINGLE PHASE, 50 KVA, 12470Y/7200-120/240
VOLTS. REFER TO TECHNICAL SPECIFICATION IN APPENDIX D. ABB/HITACHI, ERMCO, EATON, POWER PARTNERS, HOWARD 2
GROUP #10 (HARDWARE)
72 BOLT, MACHINE, 5/8" X 12" MPS "J8812", HPS "8812", ALFO "AF8812" 75
73 BOLT, MACHINE, 5/8" X 14" MPS "J8814", HPS "8814", ALFO "AF8814" 75
74 BOLT, MACHINE, 5/8" X 16" MPS "J8816", HPS "8816", ALFO "AF8816" 50
75 EYEBOLT, 5/8" X 12" MPS "J9412", HPS "29962", ALFO "AF9412" 25
76 EYEBOLT, 5/8" X 14" MPS "J9414", HPS "29964", ALFO "AF9414" 25
77 EYEBOLT, 5/8" X 16" MPS "J9416", HPS "29966", ALFO "AF9416" 25
78 EYENUT, 5/8" MPS "J1092", HPS "6502", ALFO "AF1092", ALLIED BOLT "5876" 25
79 LOCKNUT, MF, 3/4" MPS "J8583", HPS "3512", ALFO, "AF8583", ALLIED BOLT "22010" 25 80 LOCKNUT, MF, 5/8" MPS "J8584", HPS "3513", ALFO "AF8584", ALLIED BOLT "22011" 200 81 WASHER, SQUARE, 2-1/4", 11/16" HOLE MPS "J1075", HPS "6813", ALFO "AF1075", ALLIED BOLT "11500" 200 82 WASHER, 3" SQUARE, CURVED, 11/16" HOLE MPS "J113", HPS "682312", ALFO "AF113", ALLIED BOLT "233" 50 83 WASHER, 3" SQUARE, CURVED, 13/16" HOLE MPS "J6823", HPS "682312", ALFO "AF6823", ALLIED BOLT "244" 50
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
ITEM # ITEM MANUFACTURER & CATLOG NO.
QTY
REQ'D
GROUP #11 (EQUIPMENT BRACKETS)
84 BRACKET, EQUIPMENT, SINGLE PHASE, FIBERGLASS MPS "G1MA0HBDDB", HPS "1SBM18CTB", ALFO "F1CA-MV-H18-D3-H" 17 85 BRACKET, EQUIPMENT, THREE PHASE, FIBERGLASS MPS "G3MA014824DDB", HPS "3SBM4818CTB", ALFO "F3CA-MV-H4824-D3-H" 1
BRACKET, TRANSFORMER CLUSTER MOUNT, COMPLETE WITH MOUNTING
HARDWARE MPS "C15M39", HPS "C15M3-9", ALFO "15M3-9" 1
GROUP #12 (UTILITY UNDERGROUND PRIMARY CABLE WIRE)
87 WIRE, #4/0 ALUMINUM 15KV UD CABLE
OKONITE "162-23-3081", OR EQUAL BY PRYSMIAN, KERITE, SOUTHWIRE -
FURNISHED ON THREE (3) 830 FOOT REELS AND ONE (1) 3,200 FOOT REEL 5,690
GROUP #13 (UTILITY UNDERGROUND SECONDARY CABLE WIRE)
CABLE, UNDERGROUND TRIPLEX, #4/0 ALUMINUM, RUGGEDIZED OR HI-SCORE,
SWEETBRIAR, PACKAGED ON THREE (3) 1000' REELS SOUTHWIRE OR EQUAL 3,000
GROUP #14 (UNDERGROUND CONDUCTOR ACCESSORIES)
89 200A 15 KV 3-WAY CABLE JUNCTION ENCLOSURE HOWARD "4584-268-770-4YY" OR EQUAL 2 90 200A 15 KV KV 3-WAY CABLE JUNCTION ENCLOSURE BOX PAD CONCAST "FC-23-85-32-1880" OR EQUAL 2 91 15 KV 200A LOADBREAK JUNCTION BARS, THREE-POSITION 3M "215J3B", ELASTIMOLD "164J3-5", OR EQUAL 6 92 15 KV 200A FEEDTHRU PARKING STAND, 2-WAY ELASTIMOLD "164FT", EATON "LPF215H", OR EQUAL 1
93 200A 15 KV LOADBREAK ELBOW TERMINATION, #4/0 AL WITH CABLE SHIELD
3M "215LB508B", ELASTIMOLD "162LR-C5270-S", EATON "LE215-CC-09-CS" OR
EQUAL 43
94 BUSHING CAP, 15 kV, 200A LOADBREAK 3M "215LBI", ELASTIMOLD "167DRG", OR EQUAL 6
95 CABLE TERMINATOR, 15 KV, FOR #4/0 AL 15 KV 220 MIL JCN CABLE
3M “7652-S-4(L)” (TERMINATOR), CROSS ARM MOUNTING BRACKET "MB-4",
AND “SC0040”(STEM CONNECTOR), OR EQUAL 13
96 10KV ELBOW SURGE ARRESTER 3M "215SA10", ELASTIMOLD "167ESA-10", EATON "3238018C10M", OR EQUAL 1
GROUP #15 (PAD MOUNTED TRANSFORMERS)
97 50 KVA 1P PAD-MOUNTED TRANSFORMER ERMCO, HOWARD, OR HITACHI 13
GROUP #16 (SECONDARY PEDESTALS)
SECONDARY PEDESTAL, BASE & COVER, WITH HEX HEAD BOLTS & 3-350 MCM
CONNECTORS PENCELL "AG18-L350" 17
NOTE: MAXIMUM REEL SIZE SHALL BE 72" FLANGE HEIGHT x 56" OUTSIDE WIDTH. ACTUAL CABLE LENGTHS PER REEL SHALL NOT BE LESS THAN SPECIFIED OR MORE 5% GREATER
THAN SPECIFIED (MINIMUM TOLERANCE 0%, MAXIMUM TOLERANCE 5%)
CONSTRUCTION OF PARKVIEW DEVELOPMENT ELECTRICAL SITE PACKAGE (RE-BID)
COLUMBUS REDEVELOPMENT AUTHORITY
COLUMBUS, MISSISSIPPI
ITEM # ITEM MANUFACTURER & CATLOG NO.
QTY
REQ'D
GROUP #17 (CONDUIT)
99 CONDUIT, CABLE RISER, SCHEDULE 80 PVC, 2" CARLON, CANTEX, ALLIED TUBE & CONDUIT, OR EQUAL 330
100 CONDUIT STANDOFF BRACKET AND T-SLOT BAR, ALUMINUM HPS "C6CSO24" 32
101 CONDUIT STRAP, 2" HPS "CSTK2", ALFO "STK2", OR EQUAL 44
Page-1 Columbus Light & Water Columbus, Mississippi
APPENDIX F
SPECIFICATIONS FOR SINGLE PHASE PAD
MOUNTED TRANSFORMERS
COLUMBUS LIGHT & WATER
PART 1 GENERAL
1.1 SCOPE
A. Section Includes:
1. Liquid Filled Transformers.
2. Service Conditions.
3. Ratings.
4. Transformer Efficiencies and Losses.
5. Accessories.
6. Noise.
7. Factory Finishing.
8. Quality Control.
1.2 REFERENCES
A. American National Standards Institute:
1. ANSI C57.12.25 - Requirements for Pad Mounted, Compartmental-Type, Distribution Transformers, 167 kVA and Smaller, High Voltage, 34 500 Volts and Below; Low Voltage, 240/120 Volts and Below.
2. ANSI C57.12.28 - ANSI Standard for Pad Mounted Equipment - Enclosure Integrity.
3. ANSI C57.12.90 - Test Code for Liquid-Immersed Distribution, Power and Regulation Transformers and Guide for Short-Circuit Testing of Distribution and Power Transformers.
4. ANSI C57.91 - Guide for Loading Mineral Oil Transformers.
B. Institute of Electrical and Electronics Engineers:
1. IEEE C57.12.00 - Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers.
Page-2
Columbus, Mississippi
2. IEEE C57.106 - Guide for Acceptance and Maintenance of Insulating Oil in Equipment.
C. National Electrical Manufacturers Association:
1. NEMA TR1 - Transformers, Regulators and Reactors.
D. Department of Energy:
1. 10 CFR Part 431 - Department of Energy - Energy Conservation Program for Commercial Equipment: Distribution Transformers Energy Conservation Standards;
Final Rule.
1.3 QUALITY ASSURANCE
A. Furnish manufacturer's standard one-year warranty on pole mounted transformer.
PART 2 PRODUCTS
2.1 LIQUID-FILLED TRANSFORMERS
A. Manufacturers: ABB, Eaton; Howard Industries; or Ermco. New units only.
Remanufactured units not accepted.
B. Product Description: ANSI C57.12.25, single phase, pad mounted, self-cooled transformer unit. Transformers shall be new and shall be manufactured in the United States of America.
C. Substitutions: As Accepted.
D. Cooling and Temperature Rise: IEEE C57.12.00, Class OA, 65 degrees C, self-cooled.
E. Insulating Liquid: Furnish with new (unused) mineral oil conforming to IEEE C57.106.
2.2 SERVICE CONDITIONS
A. Meet requirements for usual service conditions described in IEEE C57.12.00.
B. Maximum Ambient Temperature: 104 degrees F.
2.3 RATINGS
A. Capacity and Quantities:
1. 50 kVA, Units Total
Page-3
Columbus, Mississippi
B. Type: Compartmental Type Pad Mount, ANSI Type 1
C. Primary Voltage: 12,470 Grd Y/7,200 volts
D. Taps: Standard NEMA primary taps. Taps shall be suitable for de-energized operation only.
E. Secondary Voltage: 240/120 volts
F. Impedance: ANSI C57.12.00 standard impedance.
G. Basic Impulse Level: 95 kV primary, 30 kV secondary.
2.4 TRANSFORMER EFFICIENCIES AND LOSSES
A. Efficiencies and Losses: 10 CFR Part 431. Transformers shall comply with the latest DOE Energy Conservation Standards and Test Procedures, with the allowed tolerances as defined in the DOE Test Procedures.
2.5 ACCESSORIES
A. Primary Bushings: Furnish with universal bushing wells and parking stands in accordance with ANSI C57.12.25. Dead front, loop feed construction, externally clamped bushing wells for loadbreak or non-loadbreak inserts shall include dust covers for contamination resistance. Primary bushing arrangement shall be for a loop feed. Primary bushings shall be labeled according to ANSI C57.12.70.
B. Primary Protection: Bay-O-Net type oil immersed fuses with drip guard shall be provided.
C. Secondary Bushings: Furnish with externally clamped, 6 hole in-line set screw type terminals for use with copper or aluminum conductors. The low voltage neutral shall be an insulated bushing grounded to the transformer tank by a removable grounding strap.
Secondary bushings shall be labeled according to ANSI C57.12.70. Secondary bushings shall be on the right side of the compartment when facing the front of the unit.
D. Grounding: Furnish with tank grounds per ANSI C57.12.25 with connectors to accept AWG 4 solid copper ground wire.
E. Nameplate: Furnish stainless steel or anodized aluminum instruction nameplate in accordance with ANSI C57.12.00 and located on the secondary side of the compartment above the bushings. Nameplate shall indicate transformer ratings, proper connection and fusing information and total gallons of oil. Nameplate shall also indicate that the PCB
Page-4
Columbus, Mississippi content of said transformer is less than 1 part per million or at time of manufacture gas chromatograph analysis certified non-detectable PCB.
F. Pressure Relief: Furnish transformer with pressure relief device in accordance with ANSI C57.12.25. Pressure relief device shall include an Internal Fault Detector with a non-resettable orange or red indicator.
G. Tap Changer: Externally-operated no-load tap changer type with straddle taps.
H. Labeling: Rating of transformer in kVA, primary voltage, secondary voltage, and company number shall be placed on the front of all transformer tanks as a reflective sticker, using yellow numbers with black background. The company number and kVA size will be a 2.5 inches sticker, and the primary and secondary voltage will be 2.0 inches
2.6 NOISE
A. Transformer sound levels shall not exceed the values specified in the latest revision of NEMA Publication TR-1.
2.7 FABRICATION
A. Transformer tanks shall be of welded steel construction sealed type design complete with cover and gaskets. Tanks shall have lifting provisions and diagrammatic nameplate in accordance with ANSI C57.12.25. Standard Penta Head bolt shall be included for cabinet locking along with provision for a standard pad lock.
B. Conform to requirements of ANSI C57.12.25.
2.8 FACTORY FINISHING
A. Finish: The coating system shall meet or exceed ANSI C57.12.28 coating system requirements for pad-mount equipment.
2.9 QUALITY CONTROL:
A. The following tests shall be performed at the factory on at least 10% of each unit to be supplied prior to shipment:
1. No-Load (85°C or 20°C) losses at rated current.
2. Total (85°C) losses at rated current.
3. Percent Impedance (85°C) at rated current.
4. Excitation current (100% voltage) test.
Page-5
Columbus, Mississippi
5. Winding resistance measurement tests.
6. Ratio tests using all tap settings.
7. Polarity and phase relation tests.
8. Induced potential tests.
9. Full wave and reduced wave impulse test.
PART 3 OTHER CONSIDERATIONS
3.1 BIDDER’S QUALIFICATIONS
A. Bidder shall be transformer manufacturer, manufacturer’s authorized Mississippi representative, or manufacturer’s authorized Mississippi utility distributor.
| Appendix A and B.pdf |
| Appendix A |
| Appendix B |
| 1 Phase Pad Mounted Transformers 50kva rev ifd 04062022.pdf |
| PART 1 GENERAL |
| 1.1 SCOPE |
| A. Section Includes: |
| 1. Liquid Filled Transformers. |
| 2. Service Conditions. |
| 3. Ratings. |
| 4. Transformer Efficiencies and Losses. |
| 5. Accessories. |
| 6. Noise. |
| 7. Factory Finishing. |
| 8. Quality Control. |
| 1.2 REFERENCES |
| A. American National Standards Institute: |
| 1. ANSI C57.12.25 - Requirements for Pad Mounted, Compartmental-Type, Distribution Transformers, 167 kVA and Smaller, High Voltage, 34 500 Volts and Below; Low Voltage, 240/120 Volts and Below. |
| 2. ANSI C57.12.28 - ANSI Standard for Pad Mounted Equipment - Enclosure Integrity. |
| 3. ANSI C57.12.90 - Test Code for Liquid-Immersed Distribution, Power and Regulation Transformers and Guide for Short-Circuit Testing of Distribution and Power Transformers. |
| 4. ANSI C57.91 - Guide for Loading Mineral Oil Transformers. |
| B. Institute of Electrical and Electronics Engineers: |
| 1. IEEE C57.12.00 - Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers. |
| 2. IEEE C57.106 - Guide for Acceptance and Maintenance of Insulating Oil in Equipment. |
| C. National Electrical Manufacturers Association: |
| 1. NEMA TR1 - Transformers, Regulators and Reactors. |
| D. Department of Energy: |
| 1. 10 CFR Part 431 - Department of Energy - Energy Conservation Program for Commercial Equipment: Distribution Transformers Energy Conservation Standards; Final Rule. |
| 1.3 QUALITY ASSURANCE |
| A. Furnish manufacturer's standard one-year warranty on pole mounted transformer. |
| PART 2 PRODUCTS |
| 2.1 LIQUID-FILLED TRANSFORMERS |
| A. Manufacturers: ABB, Eaton; Howard Industries; or Ermco. New units only. Remanufactured units not accepted. |
| B. Product Description: ANSI C57.12.25, single phase, pad mounted, self-cooled transformer unit. Transformers shall be new and shall be manufactured in the United States of America. |
| C. Substitutions: As Accepted. |
| D. Cooling and Temperature Rise: IEEE C57.12.00, Class OA, 65 degrees C, self-cooled. |
| E. Insulating Liquid: Furnish with new (unused) mineral oil conforming to IEEE C57.106. |
| 2.2 SERVICE CONDITIONS |
| A. Meet requirements for usual service conditions described in IEEE C57.12.00. |
| B. Maximum Ambient Temperature: 104 degrees F. |
| 2.3 RATINGS |
| A. Capacity and Quantities: |
| 1. 50 kVA, Units Total |
| B. Type: Compartmental Type Pad Mount, ANSI Type 1 |
| C. Primary Voltage: 12,470 Grd Y/7,200 volts |
| D. Taps: Standard NEMA primary taps. Taps shall be suitable for de-energized operation only. |
| E. Secondary Voltage: 240/120 volts |
| F. Impedance: ANSI C57.12.00 standard impedance. |
| G. Basic Impulse Level: 95 kV primary, 30 kV secondary. |
| 2.4 TRANSFORMER EFFICIENCIES AND LOSSES |
| A. Efficiencies and Losses: 10 CFR Part 431. Transformers shall comply with the latest DOE Energy Conservation Standards and Test Procedures, with the allowed tolerances as defined in the DOE Test Procedures. |
| 2.5 ACCESSORIES |
| A. Primary Bushings: Furnish with universal bushing wells and parking stands in accordance with ANSI C57.12.25. Dead front, loop feed construction, externally clamped bushing wells for loadbreak or non-loadbreak inserts shall include dust covers for ... |
| B. Primary Protection: Bay-O-Net type oil immersed fuses with drip guard shall be provided. |
| C. Secondary Bushings: Furnish with externally clamped, 6 hole in-line set screw type terminals for use with copper or aluminum conductors. The low voltage neutral shall be an insulated bushing grounded to the transformer tank by a removable groundin... |
| D. Grounding: Furnish with tank grounds per ANSI C57.12.25 with connectors to accept AWG 4 solid copper ground wire. |
| E. Nameplate: Furnish stainless steel or anodized aluminum instruction nameplate in accordance with ANSI C57.12.00 and located on the secondary side of the compartment above the bushings. Nameplate shall indicate transformer ratings, proper connecti... |
| F. Pressure Relief: Furnish transformer with pressure relief device in accordance with ANSI C57.12.25. Pressure relief device shall include an Internal Fault Detector with a non-resettable orange or red indicator. |
| G. Tap Changer: Externally-operated no-load tap changer type with straddle taps. |
| H. Labeling: Rating of transformer in kVA, primary voltage, secondary voltage, and company number shall be placed on the front of all transformer tanks as a reflective sticker, using yellow numbers with black background. The company number and kVA si... |
| 2.6 NOISE |
| A. Transformer sound levels shall not exceed the values specified in the latest revision of NEMA Publication TR-1. |
| 2.7 FABRICATION |
| A. Transformer tanks shall be of welded steel construction sealed type design complete with cover and gaskets. Tanks shall have lifting provisions and diagrammatic nameplate in accordance with ANSI C57.12.25. Standard Penta Head bolt shall be included... |
| B. Conform to requirements of ANSI C57.12.25. |
| 2.8 FACTORY FINISHING |
| A. Finish: The coating system shall meet or exceed ANSI C57.12.28 coating system requirements for pad-mount equipment. |
| 2.9 QUALITY CONTROL: |
| A. The following tests shall be performed at the factory on at least 10% of each unit to be supplied prior to shipment: |
| 1. No-Load (85(C or 20(C) losses at rated current. |
| 2. Total (85(C) losses at rated current. |
| 3. Percent Impedance (85(C) at rated current. |
| 4. Excitation current (100% voltage) test. |
| 5. Winding resistance measurement tests. |
| 6. Ratio tests using all tap settings. |
| 7. Polarity and phase relation tests. |
| 8. Induced potential tests. |
| 9. Full wave and reduced wave impulse test. |
| PART 3 OTHER CONSIDERATIONS |
| 3.1 BIDDER’S QUALIFICATIONS |
| A. Bidder shall be transformer manufacturer, manufacturer’s authorized Mississippi representative, or manufacturer’s authorized Mississippi utility distributor. |
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