Addendum 2 09/04/2008 Page 1 of 8 Business Affairs Finance and Accounting Division Purchasing and Disbursement Services http://purchasing.ufl.edu/ 102 Elmore Hall PO Box 115250 Gainesville, FL 32611-5250 352-392-1331 352-392-8837 Fax September 4, 2008 ADDENDUM NUMBER 2 ON INVITATION TO BID# ITB09SVF-112
TITLE: Jennings Electrical Primary Distribution Renovations Mandatory pre-bid meeting was held August 26, 2008 at 10:00 AM. Bid opening remains scheduled for September 9, 2008 at 2:00 PM.
This addendum shall be considered part of the Contract Documents for the above mentioned project as though it had been issued at the same time and incorporated integrally therewith. Where provisions of the following supplementary data differ from those of the original Contract documents, this addendum shall govern and take precedence. Bidders are hereby notified that they shall acknowledge receipt of the addendum. NOTES: See attached addendum per Moses & Associates dated September 3, 2008. Sarah Vidal-Finn Construction Coordinator PLEASE ACKNOWLEDGE RECEIPT OF ADDENDUM AND RETURN WITH YOUR BID. FAILURE TO ACKNOWLEDGE YOUR ADDENDUM COULD CONSTITUTE REJECTION OF YOUR BID. VENDOR NAME VENDOR ADDRESS SIGNATURE The Foundation for The Gator Nation
An Equal Opportunity Institution Addendum 2 09/04/2008 Page 2 of 8 Principals: Francis W. Moses, PE George R. Lebo, LEED AP, PE Mark R. Akin, RCDD, LEED AP, PE David L. Brooks, PE ADDENDUM TO THE PLANS AND SPECIFICATIONS FOR JENNINGS HALL RENOVATIONS ELECTRICAL PRIMARY DISTRIBUTION RENOVATIONS DHRE PROJECT NO. 09369-593/594/595 M&A PROJECT NO. 07147 SEPTEMBER 3, 2008 The above named Drawings and Specifications are hereby modified, corrected, and/or supplemented as follows: 1. PROJECT MANUAL: Section 00810/Minority Business Enterprise Requirements: This specification section was omitted from the project manual. The attached section dated September 3, 2008 shall be added to the contract documents. PROJECT MANUAL: Section 16454/Transformer - Liquid Filled - Pad Mounted: This specification section was omitted from the project manual. The attached section dated September 3, 2008 shall be added to the contract documents. Response to questions received by email (Clarifications): a. Feeders from the transformers to MDP1, MDP2 and CB-1 are not required to be encased in conduit. b. Scale of Drawing E-6 is 1" = 30'-0" as indicated on this drawing. Scale of Drawing A-1 is 1" = 30'-0" not 1" = 40'-0" as indicated. c. Telephone Room is south of the bathroom on ground floor, west of Room 1013. 2. 3. END OF ADDENDUM SEPTEMBER 3, 2008
H:\07147\AD02 9-3-08\AD02.wpd 2209 NW 40t h Terrace, Suite A Gainesville, FL 32605 v 352.372.1911 f 352.372.0186 www.moses-eng.com Addendum 2 09/04/2008 Page 3 of 8 SECTION 00810 - MINORITY BUSINESS ENTERPRISE REQUIREMENTS (Added 9/3/08) SECTION 00810 � MINORITY BUSINESS ENTERPRISE PARTICIPATION The University of Florida is an equal opportunity institution and, as such, encourages the use of Minority Business Enterprises (MBEs) in the provision of construction-related services. MBEs should have a fair and equal opportunity to compete for dollars spent by the University of Florida to procure construction-related services. Competition ensures that prices are competitive and a broad vendor base is available. MBE-related information shall be sent to the Division of Small Business and Vender Diversity Relations, PO Box 115250, Elmore Hall, Room 106, Gainesville, Florida 32611, Attn: Ms. Faylene Welcome. Please do not include the information with any bid documents." August 2001 Section 00810, Page 1 of 2 Addendum 2 09/04/2008 Page 4 of 8 Small Business & Vendor Diversity Relations
106 Elmore Hall P.O. Box 115250 Gainesville, Florida 32611-5250 Phone:(352) 392-1331 Fax:(352) 392-8837 e-mail: fwelcom@admin.ufl.edu Minority Business Enterprise (MBE) Participation Subcontracting Form Date:______________ Bidder's Name:_________________________________Bid/Project No:________ Project Title: ____________________________
Work to be Performed Dollar Value Of Work to to Performed Is Firm a Certified MBE? Yes(Y) No (N) Name of Firm Name of Certifying Agency Return completed form to: University of Florida
Small Business & Vendor Diversity Relations 106 Elmore Hall P.O. Box 115250 Gainesville, Florida 32611-5250 Phone:(352) 392-1331 Fax:(352) 392-8837 e-mail: fwelcom@admin.ufl.edu End Of Section August 2001 Section 00810, Page 2 of 2 Addendum 2 09/04/2008 Page 5 of 8 Jennings Hall � Electrical Primary Renovations � DHRE Project No. 09369-593/594/595 � 7/25/08 M&A 07147 SECTION 16454/TRANSFORMER - LIQUID FILLED - PAD MOUNTED (Added 9/3/08) 1 1.1 1.1.1 GENERAL Related Documents Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. Summary This Section includes the following types of liquid-filled transformers rated over 600V, with capacities up to 3,750 kVA. Quality Assurance Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. Comply with ANSI/IEEE C 57.12.91. Coordination Coordinate size and location of concrete bases. Cast anchor-bolt inserts into bases. Concrete, reinforcement, and formwork requirements are specified in Division 3. Approval Submittals: Product Data: Include rated nameplate data, capacities, weights, dimensions, minimum clearances, installed devices and features, and performance for each type and size of transformer indicated. Shop Drawings for each transformer: Wiring and connection diagrams. Test Reports and Verification Submittals: Training: Submit letter verifying that Owner training has been received by factory representative. Perform the following field tests and inspections and prepare test reports: 1.2 1.2.1 1.3 1.3.1 1.3.2 1.4 1.4.1 1.5 1.5.1 1.5.2 1.5.2.1 1.6 1.6.1 1.6.1.1 1.6.1.1.1 NETA ATS: Perform each electrical test and visual and mechanical inspection stated in NETA ATS, Sections 7.2.2. Certify compliance with test parameters. 1.6.2 Record transformer secondary voltage at each unit for at least 48 hours of typical occupancy period. Adjust transformer taps to provide optimum voltage conditions at secondary terminals. TRANSFORMER - LIQUID FILLED - PAD MOUNTED 16454.1 REV. 10/12/06 Addendum 2 09/04/2008 Page 6 of 8 Jennings Hall � Electrical Primary Renovations � DHRE Project No. 09369-593/594/595 � 7/25/08 M&A 07147 Optimum is defined as not exceeding nameplate voltage plus 10 percent and not being lower than nameplate voltage minus 5 percent. Submit recording and tap settings as test results. 1.6.3 1.7 1.7.1 Output Settings Report: Prepare a written report recording output voltages and tap settings. O&M Data Submittals: Submit manufacturer's maintenance data. Include these data, a copy of approval submittals (product data & shop drawings) in O&M manual. PRODUCTS Manufacturers Manufacturers: Subject to compliance with requirements, provide products by one of the following: Cooper Power Systems. General Electric. Cutler Hammer. Square D/Group Schneider NA. ABB. Standards: Transformer shall comply with the latest applicable standards of the National Electrical Manufacturers Association (NEMA) and the American National Standards Institute (ANSI). Ratings: Transformers shall be rated as shown on the Drawings with primary voltage as required by utility. Impedance of transformers 150 KVA and below shall limit available short circuit current at secondary terminals to 10,000 amperes or less with infinite primary. Impedance of transformers 225 KVA through 500 KVA shall not be less than 4%. Impedance of transformers above 500 KVA shall not be less than 5.3%. Construction: Transformer shall be Envirotemp FR3 filled, self-cooled, dead-front, loop feed and weatherproof for mounting on a concrete pad. All windings shall be copper only. Aluminum is not permitted. 2 2.1 2.1.1 2.1.1.1 2.1.1.2 2.1.1.3 2.1.1.4 2.1.1.5 2.2 2.3 2.4 2.4.1 2.4.2 The transformer shall be sealed tank construction of sufficient strength to withstand a pressure of 7 psi without permanent distortion. The cover shall be bolted on and the fastenings tamperproof. Transformer shall remain effectively sealed for a top liquid temperature range of 50�C to 106�C. When required, corrugated cooling panels shall be provided on the back and sides of the tank. Lifting eyes and jacking pads shall be provided. TRANSFORMER - LIQUID FILLED - PAD MOUNTED 16454.2 REV. 10/12/06 Addendum 2 09/04/2008 Page 7 of 8 Jennings Hall � Electrical Primary Renovations � DHRE Project No. 09369-593/594/595 � 7/25/08 M&A 07147 2.4.3 Transformer assembly shall be designed to reduce losses and noise and provide adequate shortcircuit strength and heat dissipation. Internal leads are to be insulated, trained and anchored to prevent phase to phase flashover. A tap changing mechanism shall be provided for accurate voltage adjustment without opening the transformer tank. The tap changing mechanism shall be externally operated and shall be for de-energized operation only. Transformers shall have four 2-1/2% rated taps, two above and two below, rated primary voltage. The high and low voltage compartments shall be located side-by-side separated by a steel barrier. When facing the transformer, the low voltage compartment shall be on the right. Terminal compartments shall be full height with individual doors. The high voltage door fastenings shall not be accessible until the low voltage door has been opened. The low voltage door shall have a 3-point latching mechanism with vault type handle having provisions for a single padlock. The doors shall be equipped with lift-off type stainless steel hinges and door stops to hold doors open when working in the compartments. The front sill of the compartment shall be removable to allow the transformer to be rolled or skidded into position over conduit stubs. ANSI tank grounding provisions shall be furnished in each compartment. The high voltage bushings shall be dead front and conform to ANSI C57.12.26 requirements. Provide ON-OFF load break, gang operated, liquid immersed switch. Switch handle with eye for operation with distribution hot stick shall be located in the high voltage compartment. Provide three M.O.V.E. style distribution class lightning arresters mounted in the high voltage compartment in the unused loop feed bushings for surge protection. The low voltage bushings shall be molded epoxy and provided with blade type spade terminals with NEMA standard hole spacing arranged for vertical take-off. The low voltage neutral shall be an insulated bushing grounded to the transformer tank by a removable grounding strap. Wyewye connected transformers shall have the high and low voltage neutrals internally tied with a removable link for testing. Accessories: Furnish the following accessories: Nameplate in low voltage compartment. One-inch drain valve with sampling device located in the primary side compartment. One-inch upper filter press and filling plug. Liquid level indication (pipe plug at 25/ C liquid level). Dial type thermometer with resettable maximum reading indicator. Liquid level gauge. Pressure-vacuum gauge. 2.4.4 2.4.5 2.4.6 2.4.7 2.4.8 2.5 2.5.1 2.5.2 2.5.3 2.5.4 2.5.5 2.5.6 2.5.7 TRANSFORMER - LIQUID FILLED - PAD MOUNTED 16454.3 REV. 10/12/06 Addendum 2 09/04/2008 Page 8 of 8 Jennings Hall � Electrical Primary Renovations � DHRE Project No. 09369-593/594/595 � 7/25/08 M&A 07147 2.5.8 2.5.9 2.5.10 2.6 2.7 Pressure relief valve. Mounting provision for low voltage current transformers and potential transformers. Schraeder valve. Provide all H.V. and L.V. connectors. Provide primary fuses Bay-o-net liquid-immersed and two sets of spares for each transformer provided. EXECUTION Grounding: Provide a copper clad driven ground rod 3/4" x 10'-0". Install ground rod as indicated on Drawings. Concrete Pad: Provide a reinforced concrete pad sized to accommodate size of transformer supplied or as shown on plans, whichever is of greater size. Minimum thickness shall be 6". Conductor Terminals: Provide all conductor terminals with NEMA bolt configuration and sized to accommodate conductors shown on the Drawings. Nitrogen Gas Blanket: Transformer shall be delivered with a minimum internal positive pressure of 2 PSIG of nitrogen gas blanket above the liquid. Contractor shall provide field repressurization with dry nitrogen as necessary to prevent internal pressure from falling below 2 PSIG. Contractor shall maintain a log of all repressurizations, including date, time, operator, and pressure readings before and after. Contractor shall notify Engineer within 24 hours of all repressurizations. Pressure shall not exceed maximum rating. If internal pressure is found to be below 2 PSIG, contractor shall immediately report this to Engineer and request instructions for corrective actions. Such actions may include transformer testing and/or replacement and shall be completed by the contractor without change in the contract amount. Surge Arrestors: Mount M.O.V.E. surge arresters in the second set of primary loop bushings. 3 3.1 3.2 3.3 3.4 3.5 END OF SECTION TRANSFORMER - LIQUID FILLED - PAD MOUNTED 16454.4 REV. 10/12/06