hydro unit refurbishment contract

Am #0003 - 1

DEPARTMENT OF THE ARMY Omaha District, Corps of Engineers 1616 Capitol Avenue Omaha, Nebraska 68102-4901

_________________________________

:NOTICE: Failure to acknowledge : Solicitation No. W9128F 12 R 0016 :all amendments may cause rejec- : :tion of the offer. See FAR : Date of Issue: 17 May 2012 :52.215-1 of Section 00 21 00 : Date of Receiving Proposals: 31 July 2012

Amendment No. 0003 03 July 2012

SUBJECT: Amendment No. 0003 to Request for Proposal Solicitation Package for Construction of Unit 2 Major Rehab, Fort Peck Dam, MT

Solicitation No. W9128F 12 R 0016.

TO: Prospective Offerors and Others Concerned

1. The specifications and drawings for subject project are hereby modified as follows (revise all specification indices, attachment lists, and drawing indices accordingly).

a. Specifications. (Descriptive Changes.) (1) Section 00 11 00 Page 12, See beginning of the last paragraph

on page, delete Within 15 days after receipt of signed task order and substitute Within 30 days after receipt of signed tasks order.

(2) Section 00 22 00 Page 2, under Attachments, for Attachment 1 add the following: The Blank Performance Evaluation Forms (DD Form 2626) is also referred to as the Past Performance Questionnaire and are to be considered one in the same.

b. Specifications (New and/or Revised and Reissued). Delete and substitute or add specification pages as noted below. The substituted pages are revised and reissued with this amendment.

Pages Deleted Pages Substituted or Added

SECTION 01 22 00.00 24 SECTION 01 22 00.00 24 MEASUREMENT AND PAYMENT MEASUREMENT AND PAYMENT

SECTION 48 13 13.01 26 SECTION 48 13 13.01 26 HYDRAULIC TURBINE HYDRAULIC TURBINE

2. This amendment is a part of the proposing papers and its receipt shall be acknowledged on the Standard Form 1442. All other conditions and requirements of the request for proposal remain unchanged. If the proposals have been mailed prior to receiving this amendment, you will notify the office where proposals are received, in the specified manner, immediately of its receipt and of any changes in your proposal occasioned thereby.

Am #0003 - 2

a. Hand-Carried Proposals shall be delivered to the U.S. Army Corps of Engineers, Omaha District, Contracting Division, 1616 Capitol Avenue, Omaha, Nebraska 68102-4901.

b. Mailed Proposals shall be addressed as noted in Item 8 on Page 00 11 00-1 of Standard Form 1442.

3. Offers will be received until 2:00 p.m., local time at place of receiving proposals, 31 July 2012.

Attachments: Spec Pages listed in 1.b. above Questions and Answers dated 03 July 2012 (For Information Only)

U.S. Army Corps of Engineers, Omaha District 1616 Capitol Avenue Omaha, Nebraska 68102-4901

03 July 2012 MFS/2184

Unit 2 Major Rehab, Fort Peck, MT FPUNIT2

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 22 00.00 24

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 GENERAL INFORMATION 1.2 MEASUREMENT 1.2.1 Lump Sum Measurement Items 1.2.2 Unit Price Measurement Items 1.2.3 Services of Miscellaneous Hire Items for Government Directed

Work 1.2.4 Miscellaneous Welding 1.3 PAYMENT

PART 2 PRODUCTS - NOT USED

PART 3 EXECUTION - NOT USED

-- End of Section Table of Contents --

SECTION 01 22 00.00 24 Page 1 Am0003


SECTION 01 22 00.00 24

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 GENERAL INFORMATION

In each instance, the contract price for an item will constitute full compensation as specified, as shown, or as otherwise approved. The contract price and payment will also constitute full compensation for all work incidental to completion of the item, unless such work is otherwise specifically mentioned for separate payment under another item. In the event any work is required by the specification sections or by the drawings and not specifically mentioned in the measurement and payment paragraphs, separate or direct payment will not be made, and all costs thereof are incidental to, and included in, the contract prices and payment for all items listed in 001100.

1.2 MEASUREMENT

1.2.1 Lump Sum Measurement Items

Measurement items for the work of this contract for which contract lump sum payments will be made are listed in the PRICE SCHEDULE and described below. All costs for items of work, which are not specifically mentioned to be included in a particular lump sum or unit price measurement item, shall be included in the listed lump sum item most closely associated with the work involved. The lump sum price for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided. Items indicated in the PRICE SCHEDULE will allow for progress payment.

1.2.2 Unit Price Measurement Items

Measurement items for the work of this contract on which the contract unit price payments will be made are listed in 00100 and described below. The unit price for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each of the unit price items.

1.2.3 Services of Miscellaneous Hire Items for Government Directed Work

Machinist hire, electrician hire, welding services, painter hire, other skilled craftsman hire, general laborer hire, liquid penetrant method, magnetic particle method, ultrasonic method, radiographic method, and thermal spraying measurement of time will be units of man-hours, with a man-hour defined as one person working as directed for a period of 60 minutes. To qualify as services of miscellaneous hire, the directed work will be additional to that necessary to comply with specifications requirements. Time will be computed by rounding off to the next higher one-half (1/2) hour. No separate measurement for supervision, helper

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labor, overhead and/or other markups will be made as they are incidental to the service being furnished.

1.2.4 Miscellaneous Welding

Miscellaneous welding will be measured as the number of pounds of welding rod or wire placed. When directed to perform welding under this item, the welding rod or wire for the work shall be weighed in the presence of a Government Inspector. Upon completion of the work, the rod studs and unused rods or wire shall be weighed in the presence of a Government Inspector and the difference in weight between the rods or wire issued and the stubs and rods or wire returned will be the amount for payment. If the number of studs plus the unused rods does not equal the number of rods issued, the weight of one rod will be deducted for each rod unaccounted for.

1.3 PAYMENT

Payment for all work specified, shown or incidental to complete the work will be made as follows:

SITE WORK - CLINS 0001-0050

Item No. 0001 Site Mobilization

a. Measurement shall be made as a lump sum item for mobilizing all plant, equipment, fuel, supplies, materials, and personnel to and from the job site. This line item applies to the Prime Contractor and all subcontractors mobilization and demobilization work unless noted otherwise.

b. Payment will be made in the Contract amount for Mobilization and will be paid as a lump sum under Line Item No. 0001. The Contractor shall be required to submit a schedule of mobilization costs prior to submitting the first request for payment.

c. Mobilization will be considered complete after all of the Contractor's equipment and site personnel have arrived and equipment has been set up to accomplish the work.

Item No. 0002 Site Demobilization to Restore Site to Original Condition

a. Measurement. Measurement shall be made as a lump sum item for demobilizing all plant, equipment, fuel, supplies, materials, and personnel from the job site. This line item applies to the Prime Contractor and all subcontractors mobilization and demobilization work unless noted otherwise.

b. Payment. Payment will be made in the Contract amount for Demobilization and will be paid as a lump sum under Line Item No. 0002. The Contractor shall be required to submit a schedule of demobilization costs prior to submitting the first request for payment.

c. Demobilization will be considered complete when the Contractor has removed all construction equipment, cleaned the area and restored the work area to "as found" pre-contract conditions, unless otherwise approved.

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Item No. 0003 On-Site Lead-Based Paint Removal

Payment for on-site lead-based paint removal and disposal will be made on a per square foot basis under Item No. 0003. Payment shall include all operations required to remove and dispose of lead-based paint in compliance with all federal, state and local laws and regulations as described in the specifications. This bid item only applies to on-site lead abatement. All lead abatement performed offsite shall be included in the cost of painting.

Item No. 0004 Fabricate and Deliver Draft Tube Platform

Payment for designing, furnishing, and installing the draft tube platform on for Unit 2 will be made on a lump sum basis. Payment shall include, labor, material, and equipment required to design, furnish, and install in accordance with SECTION 05 50 00.14 26.

Item No. 0005 Painting of Hydraulic Surfaces

Payment for painting will be made on a lump sum basis under Item No. 0005. Payment shall include all labor, materials and equipment required for the painting operations as described in SECTION 09 97 02.00 26.

Item No. 0006 Special Tools and Scaffolding

Payment for special tools and scaffolding will be made as a lump sum under Item No. 0006. Payment shall include all labor, materials, transportation and shipment required to furnish special tools & scaffolding as specified and as required to perform the work according to the schedule provided as part of the Contractor's proposal. Upon completion of the contract all special tools and scaffolding will become property of the Government. Non-special tools and scaffolding shall be retained by the Contractor in accordance with SECTION 48 13 13.02 26.

BASE BID ITEMS (MECHANICAL) - CLINS 0007-0040

Item No. 0007 Francis Runner including New Fasteners

Payment for the Francis turbine runner will be made on a lump sum basis under Item No. 0007. Payment shall include all engineering design, labor, material, equipment, and transportation required for the design, manufacture, and delivery of the runner, fasteners, and name plate in accordance with SECTION 48 13 13.01 26.

Item No. 0008 Conduct a Physical Model Test

Payment for the design, manufacture, testing and shipment of the hydraulic turbine model will be paid on a lump sum basis under Item No. 0008. Payment shall include but not be limited to labor, materials and equipment to design, manufacture and test a turbine model, conduct a witness test, prepare documentation, and when notified ship the model F.O.B. to Fort Peck Powerhouse. Payment will be made when the Contractor's performance guarantees have been verified at the laboratory and the model is delivered to the project in accordance with SECTION 48 13 13.00 26.

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Item No. 0009 Generating Unit Disassembly

Payment for disassembly will be made on a lump sum basis under Item No. 0009. Payment shall include, labor, material, and equipment required to disassemble and clean the generating unit in accordance with the Contractor's approved disassembly procedure, and as shown on the drawings and in accordance with SECTION 48 13 13.02 26.

Item No. 0010 Inspect All Guide Bearings

a. This line item shall be the summation of all line items within 0010.

b. Payment for generator and turbine guide bearing site inspection will be made on a lump sum basis under Item No. 0010AA and 0010AB. Payment shall include, labor, material, and equipment required to clean guide bearings and miscellaneous components, and to perform turbine guide, generator guide, spares, and miscellaneous component site inspections in accordance with SECTION 48 13 13.07 26.

c. List of all guide bearing inspections:

Item No. 0010AA Generator Guide Bearing (8 pads) including Spare (8 pads)Item No. 0010AB Turbine Guide Bearing including Spare

Item No. 0011 Thrust Bearing Phase I Inspections


b. Payment for thrust bearing phase I inspections will be made on a lump sum basis under Item No. 0011AA through 0011AC. Payment shall include, labor, material, and equipment required to clean thrust bearing components, to perform phase I inspections, and prepare report of findings with recommendations as shown on the drawings and in accordance with SECTION 48 13 13.06 26.

c. List of all thrust bearing phase I inspections:

Item No. 0011AA Generator Rotating Ring (Thrust Runner) Item No. 0011AB Generator Thrust CollarItem No. 0011AC Generator Thrust Bearing Stationary Segments (Shoes)(6 shoes) including Spare (6 shoes)

Item No. 0012 Inspect Generator and Turbine Shafts

Payment for turbine and generator shaft inspection and sleeve replacement will be made as a lump sum under Item No. 0012 for shaft inspection and shaft sleeve replacement. Payment shall include, labor, material, and equipment required to inspect the turbine and generator shafts including but not be limited to inspection, testing, cleaning, journal measurements, and turbine shaft sleeve installation as shown on the drawings and in accordance with SECTION 48 13 13.04 26. Shaft sleeve supply is included

SECTION 01 22 00.00 24 Page 5 Am0003


under a separate line item.

Item No. 0013 Inspect Generator Brake Ring

Payment for inspection of the generator brake ring will be made on a lump sum basis under Item No. 0013. Payment shall include, labor, material, and equipment required to inspect the brake rings on the unit in accordance with SECTION 22 00 00.00 26.

Item No. 0014 Inspect Generator Brake Cylinders

Payment for inspection of generator brake cylinders will be made on a lump sum basis under Item No. 0014. Payment shall include, labor, material, and equipment required to inspect the brake cylinders on the unit in accordance with SECTION 22 00 00.00 26.

Item No. 0015 Inspect Stay Ring

Payment for stay ring inspection will be made on a lump sum basis under Item No. 0015. Payment shall include, labor, material, and equipment required to perform the stay ring inspection including visual and liquid penetrant or magnetic particle techniques in accordance with SECTION 48 13 13.04 26.

Item No. 0016 Inspect Bottom Ring and Facing Plate

Payment for bottom ring and facing plate inspection will be made on a lump sum basis under Item No. 0016. Payment shall include, labor, material, and equipment required to perform the bottom ring and facing plate inspection including visual and liquid penetrant or magnetic particle techniques in accordance with SECTION 48 13 13.04 26.

Item No. 0017 Inspect Head Cover and Facing Plate

Payment for head cover and facing plate inspection will be made on a lump sum basis under Item No. 0017. Payment shall include, labor, material, and equipment required to perform the head cover and facing plate inspection including visual and liquid penetrant or magnetic particle techniques in accordance with SECTION 48 13 13.04 26.

Item No. 0018 Inspect Main Shaft Packing Box

Payment for main shaft packing box inspection will be made on a lump sum basis under Item No. 0018. Payment shall include, labor, material, and equipment required to perform the main shaft packing box inspection including visual and liquid penetrant or magnetic particle techniques in accordance with SECTION 48 13 13.04 26.

Item No. 0019 Inspect Wicket Gate Servomotors

Payment for wicket gate servomotors inspection will be made on a lump sum basis under Item No. 0019. Payment shall include, labor, material, and

SECTION 01 22 00.00 24 Page 6 Am0003


equipment required to perform the wicket gate servomotors inspection in accordance with SECTION 48 13 13.04 26.

Item No. 0020 Furnish New Stationary Sealing Rings

Payment for new stationary sealing rings will be made on a lump sum basis under Item No. 0020. Payment shall include, labor, material, and equipment required to furnish one upper and one lower stationary sealing ring, and sealing ring fasteners as shown on the drawings and in accordance with SECTION 48 13 13.04 26.

Item No. 0021 Furnish New Self-Lubricating Bushings (Wicket Gate, Linkages, and Operating Ring.

Payment for greaseless bushings/bearing plate will be made on a lump sum basis under Item No. 0021. Payment shall include, labor, material, and equipment required to furnish self-lubricating bushings including but not limited to bushings (guide bearings), guide bearing plate (rings, strips, pads), thrust bearing plate (pads), thrust bushings (washers, rings, discs), intermediate and lower wicket gate bushing seals, and required mounting hardware, to replace all existing grease-lubricated components in the wicket gates operating mechanism and turbine air and check valves as shown on the drawings and in accordance with SECTION 48 13 13.04 26.

Item No. 0022 Furnish New Wicket Gate Stem Sleeves

Payment for turbine shaft sleeves will be made on a lump sum basis under Item No. 0022. Payment shall include, labor, material, and equipment required to furnish and install new wicket gate stem sleeves on all 16 wicket gate stems in accordance with SECTION 48 13 13.04 26.

Item No. 0023 Furnish Turbine Shaft Sleeve

Payment for turbine shaft sleeves will be made on a per unit basis under Item No. 0023. Payment shall include, labor, material, and equipment required to furnish the shaft sleeves, fasteners, keys, and compression clamps used for manufacture, in accordance with SECTION 48 13 13.04 26. Quantity for this CLIN includes provision of a spare shaft sleeve to be delivered prior to startup of the first unit refurbished.

Item No. 0024 Replace High Pressure Lift System Flex Lines and Check Valves

Payment for replacement of the high pressure lift system flex lines and check valves will be made on a lump sum basis under Item No. 0024. There are 6 thrust bearing shoes. Payment shall include, labor, material, and equipment required to furnish the flex lines and check valves including supply and install in accordance with SECTION 48 13 13.04 26.

Item No. 0025 Furnish RTDs for All Thrust Bearing Shoes

Payment for the furnishing of RTDs for all thrust bearing shoes will be made on a lump sum basis under Item No. 0025. There are 6 thrust bearing shoes. Payment shall include, labor, material, and equipment required to

SECTION 01 22 00.00 24 Page 7 Am0003


furnish the RTDs including supply and install in accordance with SECTION 48 13 13.06 26.

Item No. 0026 Furnish RTDs for All Guide Bearing Pads

Payment for the furnishing of RTDs for all guide bearing shoes will be made on a lump sum basis under Item No. 0026. There are 8 guide bearing pads. Payment shall include, labor, material, and equipment required to furnish the RTDs including supply and install in accordance with SECTION 48 13 13.07 26.

Item No. 0027 Furnish New Packing for the Wicket Gate Stems and Turbine Shaft including 1 Spare set of Wicket Gate Stem Seal

Payment for wicket gate stem and turbine shaft packing including one spare set of wicket gate stem packing will be made on a lump sum basis under Item No. 0027. Payment shall include, labor, material, and equipment required to furnish the wicket gate stem and turbine shaft packing including supply and install in accordance with SECTION 48 13 13.04 26.

Item No. 0028 Miscellaneous Parts and Materials

Payment for miscellaneous parts and materials, etc. will be made as a lump sum under Item No. 0028. Transportation services of parts and material to and from the job site, costs for equipment rental (including such items as machine tool time) as well as parts and materials may be required and which cannot be determined prior to disassembly and inspection. The Contractor shall receive authorization from the Government prior to use of this bid item in accordance with SECTION 48 13 13.11 26. The Contractor shall submit invoices for transportation services, equipment rental, and parts and materials.

Item No. 0029 Provision of a Boring Bar

Payment for the provision of a boring bar will be made as a lump sum under Item No. 0029. Payment shall include labor, material, and equipment necessary to provide a field machining device that will remain in the possession of the Contractor in accordance with SECTION 48 13 13.04 26.

Item No. 0030 Refurbish Wicket Gates

Payment for wicket gate refurbishment will be made on a lump sum basis under Item No. 0030. Payment shall include, labor, material, and equipment required to refurbish the 16 wicket gates in accordance with SECTION 48 13 13.04 26.

Item No. 0031 Refurbish Turbine Bearing Housing Including Spigot Fits and Cleanging Flange Face

Payment for turbine bearing housing refurbishment will be made on a lump sum basis under Item No. 0031. Payment shall include, labor, material, and equipment required to inspect and refurbish the turbine bearing housing including installation of the operating ring and the machining of the

SECTION 01 22 00.00 24 Page 8 Am0003


spigot fits and flange faces in accordance with SECTION 48 13 13.04 26.

Item No. 0032 Refurbish Main Shaft Packing Box

Payment for main shaft packing box refurbishment will be paid on a lump sum basis under Item No. 0032. Payment shall include, labor, material, and equipment required to refurbish the main shaft packing box including but not be limited to inspection, machining, replacement of packing, fasteners, piping, tubing, valves, fittings, strainers, pressure gauges, and miscellaneous components, as shown on the drawings and in accordance with SECTION 48 13 13.04 26.

Item No. 0033 Refurbish Components to Accept Self Lubricating Bushings


b. Payment for the furnishing of spares will be made on a lump sum basis under Item No. 0033AA through 0033AF. Payment shall include, labor, material, and equipment required to refurbish components to accept self lubricating bushings in accordance with SECTION 48 13 13.04 26.

c. List of components to be refurbished:

Item No. 0033AA Wicket Gate Linkages Item No. 0033AB Operating RingItem No. 0033AC Servomotor LinksItem No. 0033AD Facing Plates Item No. 0033AE Head CoverItem No. 0033AF Bottom Ring

Item No. 0034 Refurbish Wicket Gate Servomotor

Payment for servomotor refurbishment will be made on a lump sum basis under Item No. 0034. The work under this line item includes two (2) servomotors. Payment shall include, labor, material, and equipment required to refurbish the wicket gate servomotors including but not be limited to inspection, leakage testing, disassembly, cleaning, replacement of packing, and miscellaneous components, and installation of bushings as shown on the drawings and in accordance with SECTION 48 13 13.04 26.

Item No. 0035 Refurbish Turbine Air Inlet Valve Refurbishment

Payment for air inlet valve refurbishment will be made on a lump sum basis under Item No. 0035. Payment shall include, labor, material, and equipment required to refurbish the turbine air inlet valve including but not be limited to inspection, refurbishment of mating surfaces, replacement of greased bushings with self lubricating bushings, replacing packing, o-rings, gaskets, additional refurbishments as required and perform leakage tests as shown on the drawings and in accordance with SECTION 48 13 13.04 26.

Item No. 0036 Refurbish Head Cover

a. This line item shall be the summation of all line items within

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0036.

b. Payment for head cover refurbishment will be made on a lump sum basis under Item No. 0036. Payment shall include, labor, material, and equipment required to refurbish those listed in Item No. Item No. 0036AA through 0036AF in accordance with SECTION 48 13 13.04 26. If performed in the Contractor's workshop provide roundtrip transportation of the headcover.

c. List of components to be refurbished:

Item No. 0036AA Clean/True All Flanges Item No. 0036AB Clean/True Stationary Seal Mounting Surface Item No. 0036AC Clean/True Head Cover to Stay Ring Seal Surface (includes new seal) Item No. 0036AD Modify for New Wicket Gate Seals Item No. 0036AE Install New Upper Stationary Seal Ring Item No. 0036AF Field Machine Head Cover Facing Plate 0.005 inches Including Setup

Item No. 0037 Refurbish Bottom Ring

Payment for bottom ring refurbishment will be made on a lump sum basis under Item No. 0037AA through 0037AB. Payment shall include, labor, material, and equipment required to refurbish the bottom ring including installation of the replacement stationary sealing ring, installation of wicket gate bushings, machining of facing plates, and machining of mounting surfaces as shown on the drawings and in accordance with SECTION 48 13 13.04 26. If performed in the Contractors workshop provide roundtrip transportation of the bottom ring.


b. List of optional refurbishment items for the bottom ring:

Item No. 0037AA Clean/True All FlangesItem No. 0037AB Field Machine Bottom Ring Facing Plate 0.005 inches Including Setup

Item No. 0038 Center and Level Stator Frame

Payment for efforts to center and level the stator frame will be made on a lump sum basis under Item No. 0038. Payment shall include engineering, labor, material, and equipment required to raise the stator frame, level the sole plates, provide new dowel pins, address the possible structural changes to the sole plates such as repositioning and regrouting, and move the stator frame in accordance with SECTION 48 13 13.02 26.

Item No. 0039 Generating Unit Reassembly

Payment for reassembly will be made on a lump sum basis under Item No. 0039. Payment shall include, labor, material, and equipment required to reassemble the generating unit including all new fasteners, sealing between mating surfaces, adjustments, performing reassembly measurements, and alignments in accordance with the Contractors approved reassembly

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procedure, and as shown on the drawings and in accordance with SECTION 48 13 13.02 26.

Item No. 0040 Re-tube Generator Thrust Bearing Coolers

Payment for re-tubing and testing of the thrust bearing oil coolers will be made on a lump sum basis under Item No. 0040. A set consists of the thrust bearing coolers for a single unit. Payment shall include, labor, material, and equipment required to remove tubes, clean heads, re-tube, inspect, pressure test, and provide a report for the generator thrust bearing oil coolers in accordance with SECTION 22 00 00.00 26.

Item No. 0041 Clean and Inspect Existing Cooling and Packing Water Piping

Payment for cleaning and inspecting cooling and packing water piping will be made as a lump sum under Item No. 0041. Payment shall include, labor, material, and equipment required to clean and inspect all cooling and packing water piping that shall not be replaced in accordance with SECTION 22 00 00.00 26.

BASE BID ITEMS (ELECTRICAL) - CLINS 0042-0052

Item No. 0042 Furnish Completed Set of Stator Coils Including Suppliesand Accessories for a Complete New Winding Including Factory Testing

Payment will be made under Bid Item No. 0042 on a lump sum basis. Payment shall include the furnishing of a complete set of stator coils, including all supplies and accessories to make up a complete new winding, including factory testing as specified in SECTION 48 13 16.00 26, GENERATOR REWIND.

Item No. 0043 Furnish For Test and Have Tested Prototype CoilsIdentical to Coils to be Supplied in Item No. 0042.

Payment will be made under Bid Item No. 0043 on a lump sum basis. Payment shall include furnishing and testing prototype stator coils, and having them tested by an independent testing laboratory, as specified in SECTION 48 13 16.00 26, GENERATOR REWIND.

Item No. 0044 Furnish Spare Generator Parts

Payment will be made at the contract lump sum price under Bid Item No. 0044. Payment shall include the furnishing of all spare parts as specified in SECTION 48 13 16.00 26, GENERATOR REWIND.

Item No. 0045 Furnish and Install Stator Core Laminations

Payment for furnishing and installing the the stator core will be made on a lump sum basis under Item No. 0045. Payment shall include, labor, material, and equipment required to furnish a complete new stator core by stamping, core clamping system, keybars and to install and test the new stator core as specified in SECTION 48 13 16.00 26, GENERATOR REWIND.

Item No. 0046 Install and Test New Stator Winding

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Payment will be made under bid item No. 0046 on a lump sum basis. Payment shall include the installation and testing of the new stator winding, together with all accessories, as specified in SECTION 48 13 16.00 26, GENERATOR REWIND.

Item No. 0047 Inspect, Clean, and Test Rotor

Payment will be made under Bid Item No. 0047 on a lump sum basis. Payment shall include inspection, cleaning and testing of the rotor. Payment shall also include reinsulating the rotor field leads and inspection of the generator slip rings as specified in SECTION 48 13 16.00 26, GENERATOR REWIND.

Item No. 0048 Remove Stator Core

Payment will be made under Bid Item No. 0048 on a lump sum basis. Payment shall include the removal of the stator core as specified in SECTION 48 13 16.00 26, GENERATOR REWIND.

Item No. 0049 Remove Stator Winding

Payment will be made under Bid Item No. 0049 on a lump sum basis. Payment shall include removal of the stator winding as specified in SECTION 48 13 16.00 26, GENERATOR REWIND.

Item No. 0050 Furnish and Install New PDA System

Payment will be made under Bid Item No. 0050 on a lump sum basis. Payment shall include the furnishing and installation of a new PDA system as specified in SECTION 48 13 16.00 26.

Item No. 0051 Furnish and Install New Vibration and Air Gap Monitoring System

Payment will be made under Bid Item No. 0051 on a lump sum basis. Payment shall include the furnishing and installation of a new vibration and air gap monitoring system as specified in SECTION 48 13 16.01 26.

Item No. 0052 Main Leads and Surge Protection

Payment will be made under Bid Item No. 0052 on a lump sum basis. Payment shall include removal of the existing main leads and surge protection and replace with items as specified in SECTION 26 25 00.00 26, GENERATOR REWIND.

BASE BID ITEMS (FIELD TESTING) - CLINS 0053-0059

Item No. 0053 Pre-Disassembly Investigation and Testing Including Vibration Testing

Payment for investigations prior to disassembly will be made on a lump sum basis under Item No. 0053. Payment shall include labor, material, and equipment required to perform investigations, pre-disassembly operational

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testing including vibration analysis, and un-watered unit inspections and measurements in accordance with SECTION 48 13 13.02 26.

Item No. 0054 Post-Disassembly Testing and Determination of Centerline Using Laser Tracking

Payment for investigations after disassembly will be made on a lump sum basis under Item No. 0054. Payment shall include labor, material, and equipment including a laser tracking system required to temporarily reassemble stationary components, perform investigations and measurements, incrementally disassemble the stationary components while conducting investigations and measurements, and provide recommendations in determining the unit centerline, and process to correct known alignment problems in accordance with SECTION 48 13 13.02 26.

Item No. 0055 Phase I Investigations on Rotor

Payment for the Phase I Investigations on Rotor inspection and testing will be made on a lump sum basis under Item No. 0055. Payment shall include labor, material, and equipment including a laser tracking system required to investigate the rotating equipment including generator rotor rim measurements after the removal of the poles, and to provide recommendations to correct deficiencies in accordance with SECTION 48 13 13.02 26.

Item No. 0056 Phase II Investigations on Combined Generator Shaft, Thrust Collar, and Thrust Runner

Item No. 0056 Phase II Investigations on Combined Generator Shaft, Thrust Collar, and Thrust Runner inspection and testing will be made on a lump sum basis under Item No. 0056. Payment shall include transportation to and from shop, labor, material, and equipment investigate the rotating equipment including the unit runout and the diameters of pertinent interference fits, and to provide recommendations to correct deficiencies in accordance with SECTION 48 13 13.02 26.

Item No. 0057 Generator Testing

Item 0057AA Machine Parameter Tests

Payment will be made at the contract lump sum price under Bid Item No. 0057AA. Payment shall include performing machine parameter testing as specified in SECTION 48 13 16.00 26, GENERATOR REWIND.

Bid Item 0057AB Perform Special Field Tests

Payment will be made at the contract lump sum price under Bid Item No. 0057AB. Payment shall include performing all special field testing as specified in SECTION 48 13 16.00 26, GENERATOR REWIND.

Item No. 0058 Testing After Reassembly

Payment for testing after reassembly will be made on a lump sum basis under Item No. 0058. Payment shall include, labor, material, and equipment required to perform testing after reassembly of the generating unit

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including unit alignment to ensure proper perpendicularity, circularity, and verticality. It will also include system and component tests, electrical tests, post-overhaul operational testing including vibration testing and 72-hour operational test in accordance with the Contractors approved startup procedure and in accordance with SECTION 48 13 13.02 26.

Item No. 0059 Model Validation Testing and Tuning

Payment for model validation will be made on a lump sum basis under Item No. 0059. Payment shall include labor, material, and equipment required to perform model validation testing and tuning in accordance with SECTION 48 72 16.00 26.

ADDITIONAL MISCELLANEOUS OPTIONAL WORK - CLINS 0060-0062

Item No. 0060 Miscellaneous Hire Items, Weld Inspection and Non-Destructive Testing (OPTIONAL)

a. Miscellaneous welding, as measured in paragraph 1.2.4, will be made at the contract unit price per pound under Item No. 0060AA at the option of the Government. This price and payment shall be full compensation for furnishing all labor, materials, and equipment for performing miscellaneous welding as directed, SECTION 48 13 13.11 26.

b. Other miscellaneous hire items, as measured in paragraph 1.2.3, will be paid by the applicable contract unit price per hour for items 0060AB - 0060AL at the option of the Government.

c. List of all miscellaneous hire items:

Item No. 0060AA Miscellaneous Welding (OPTIONAL)Item No. 0060AB Machinist Hire (OPTIONAL)Item No. 0060AC Electrician Hire (OPTIONAL)Item No. 0060AD Welding Services (OPTIONAL)Item No. 0060AE Painter Hire (OPTIONAL)Item No. 0060AF Other Skilled Craftsman Hire (OPTIONAL)Item No. 0060AG General Laborer Hire (OPTIONAL)Item No. 0060AH Liquid Penetrant Method (OPTIONAL)Item No. 0060AI Magnetic Particle Method (OPTIONAL)Item No. 0060AJ Ultrasonic Method (OPTIONAL)Item No. 0060AK Radiographic Method (OPTIONAL)Item No. 0060AL Thermal Spraying (OPTIONAL)

Item No. 0061 Additional Touch Up Painting (OPTIONAL)

Payment for additional quantity of spiral case and draft tube touch up painting beyond what is specified in SECTION 09 97 02.00 26 will be made on a per square foot basis under Item No. 0061 at the option of the Government. Payment shall include all labor, materials and equipment required for touch up painting of the spiral case and draft tube in accordance with Federal, State, and local, laws, regulations and ordinances as described in the specifications.

Item No. 0062 Parts, Materials, Transportation, and Equipment Rental (OPTIONAL)

SECTION 01 22 00.00 24 Page 14 Am0003


Payment for weld repairs of the rotor spider will be made on a lump sum basis under Item No. 0062. The Contractor shall receive authorization from the Government prior to use of this bid item. The Contractor shall submit invoices and shall be reimbursed at the rate of cost plus ____ percent(Contractor Fill In Percentage).

ADDITIONAL MECHANICAL OPTIONAL WORK - CLINS 0063-0085

Item No. 0063 Phase III Investigations on Rotor Spider

Item No. 0063 Phase III Investigations on Rotor Spider inspection and testing will be made on a lump sum basis under Item No. 0063. Payment shall include labor, material, and equipment investigate the rotating equipment including unpiling of the rotor rim, the disassembly of the brake ring, and the measuring of the rotor spider outer diameter and the brake ring mounting surface, and to provide recommendations to correct deficiencies in accordance with SECTION 48 13 13.02 26.

Item No. 0064 Rotor Spider and Rim Analysis (OPTIONAL)

Payment for Rotor Spider and Rim Analysis will be made on a lump sum basis under Item No. 0064 Payment shall include all design engineering, software, and research to perform analysis in accordance with SECTION 48 13 16.20 26

Item No. 0065 Thrust Bearing Phase II Inspections (OPTIONAL)


b. Payment for thrust bearing phase I inspections will be made on a lump sum basis under Item No. 0065AA through 0065AC. Payment shall include, labor, material, and equipment required to clean thrust bearing components, to perform phase I inspections, and prepare report of findings with recommendations as shown on the drawings and in accordance with SECTION 48 13 13.06 26.

c. List of all thrust bearing Phase II inspections:

Item No. 0065AA Generator Rotating Ring (Thrust Runner) (OPTIONAL)Item No. 0065AB Generator Thrust Collar (OPTIONAL)Item No. 0065AC Generator Thrust Bearing Stationary Segments (Shoes, 6 shoes) including Spare (OPTIONAL)

Item No. 0066 Furnish New Components and Equipment (OPTIONAL)

Item No. 0066AA Furnish New Coupling Bolts (OPTIONAL)

Payment for new coupling bolts will be made on a lump sum basis under Item No. 0066AA. Payment shall include, labor, material, and equipment required to furnish the wicket gate shear pins including supply and install in accordance with SECTION 48 13 13.04 26.

Item No. 0066AB Furnish New Rotor Rim Including Design, Fabrication,

SECTION 01 22 00.00 24 Page 15 Am0003


and Installation (OPTIONAL)

Payment for new rotor rim will be made on a lump sum basis under Item No. 0066AB. Payment shall include design engineering, labor, transport, material, and equipment required to design, fabricate, and install a new rotor rim in accordance with SECTION 48 13 16.20 26.

Item No. 0066AC Furnish New Rotor Spider Including Design, Fabrication, and Installation (OPTIONAL)

Payment for new rotor spider will be made on a lump sum basis under Item No. 0066AC. Payment shall include design engineering, labor, transport, material, and equipment required to design, fabricate, and install a new rotor spider in accordance with SECTION 48 13 16.20 26.

Item No. 0066AD Furnish and Install Group I Turbine Oil delivered in Barrels (OPTIONAL)

Payment for supply and filling of new oil will be made on a per gallon basis under Item No. 0066AD. Quantities listed in SECTION 00 11 00 are estimates only and the billed amount shall be the actual amount supplied. Payment shall include, labor, material, and equipment required to perform all supply, shipping, transfer, and filling of the sumps with new turbine oil in accordance with SECTION 48 13 13.09 26.

Item No. 0066AE Furnish Kidney Loop Filtration System (OPTIONAL)

Payment for will be made as a lump sum under Item No. 0066AE. Payment shall include material and shipping required to furnish kidney loop filtration systems and 12 spare filters on the sump in accordance with SECTION 22 00 00.00 26.

Item No. 0066AF Furnish Thrust Bearing Float Switch (OPTIONAL)

Payment for will be made as a lump sum under Item No. 0066AF. Payment shall include material and shipping required to furnish the thrust bearing float switch in accordance with SECTION 22 00 00.00 26.

Item No. 0066AG Spare Servomotor Packing Box Stem Seals (OPTIONAL)

Payment for spare servomotor packing box stem seals will be made on a lump sum basis under Item No. 0066AG. Payment shall include, labor, material, and equipment required to furnish the spare servomotor packing box stem seals in accordance with SECTION 48 13 13.04 26.

Item No. 0066AH Furnish New Wicket Gates (16 Wicket Gates) (OPTIONAL)

Payment for new wicket gates will be made on a lump sum basis under Item No. 0066AH. Payment shall include, labor, material, and equipment required to furnish and ship the 16 new wicket gates in accordance with SECTION 48 13 13.04 26.

Item No. 0067 Refurbish Generator Brake Ring (OPTIONAL)

Payment for generator brake ring refurbishment will be made under on a lump sum basis under Item No. 0067 at the option of the Government. Payment shall include all labor, shop work, materials, and equipment required in SECTION 22 00 00.00 26 to refurbish the generator brake rings.

SECTION 01 22 00.00 24 Page 16 Am0003


Item No. 0068 Refurbish Generator Brake Cylinders (OPTIONAL)

Payment for generator brake cylinders will be made on a lump sum basis under Item No. 0068 Payment shall include, labor, material, and equipment required to refurbish, test as required, and provide a report for the generator brake cylinders in accordance with SECTION 22 00 00.00 26.

Item No. 0069 Refurbish Generator Thrust Runner (OPTIONAL)

Item No. 0069AA Resurface Thrust Bearing Runner Backside and Running Surfaces(OPTIONAL)

Payment for thrust runner resurfacing of backside and running surface will be made on a lump sum basis under Item No. 0069AA at the option of the Government. Payment shall include, labor, material, and equipment required to resurface backside and running surface of the thrust bearing runner in accordance with 48 13 13.06 26.

Item No. 0069AB Resurface Thrust Bearing Runner Running Surface Only (OPTIONAL)

Payment for resurfacing of the thrust runner running surface only will be made on a lump sum basis under Item No. 0069AB at the option of the Government. Payment shall include, labor, material, and equipment required to resurface running surface only of the thrust bearing runner in accordance with 48 13 13.06 26.

Item No. 0069AC Refurbish Thrust Bearing Runner Split Faces (OPTIONAL)

Payment for refurbishing the thrust runner running split faces will be made on a lump sum basis under Item No. 0069AC at the option of the Government. Payment shall include, labor, material, and equipment required to refurbish the split faces of the thrust bearing runner in accordance with 48 13 13.06 26.

Item No. 0069AD Furnish and Install New Thrust Bearing Runner Split Line Keys (OPTIONAL)

Payment for furnishing and installing split line keys for the thrust bearing runner will be made on a lump sum basis under Item No. 0069AD at the option of the Government. Payment shall include, labor, material, and equipment required to furnish and install split line keys for the thrust bearing runner in accordance with 48 13 13.06 26.

Item No. 0069AE Furnish and Install New Thrust Bearing Runner Fasteners (OPTIONAL)

Payment for furnishing and installing fasteners for the thrust bearing runner will be made on a lump sum basis under Item No. 0069AE at the option of the Government. Payment shall include, labor, material, and equipment required to furnish and install fasteners for the thrust bearing runner in accordance with 48 13 13.06 26.

SECTION 01 22 00.00 24 Page 17 Am0003


Item No. 0070 Refurbish Generator Thrust Bearing Runner and Thrust Collar (OPTIONAL)

Payment for refurbishing the thrust runner and thrust collar will be made on a lump sum basis under Item No. 0070 at the option of the Government. Payment shall include, labor, material, and equipment required to refurbish the thrust bearing runner and thrust collar in accordance with 48 13 13.06 26.

Item No. 0071 Refurbish Generator Thrust Bearing Shoes (OPTIONAL)

Item No. 0071AA Ship Generator Thrust Bearing Shoes (Full Set) (OPTIONAL)

Payment for shipment of thrust bearing shoes (6 shoes) will be made on a per set basis under Item No. 0071AA at the option of the Government. Payment shall include, labor, material, and equipment required to inspect, package and ship the thrust bearing shoes in accordance with SECTION 48 13 13.06 26.

Item No. 0071AB Ship Generator Thrust Bearing Shoe (Individual Shoe) (OPTIONAL)

Payment for shipment of thrust bearing shoe (individual shoes) will be made on a per shoe basis under Item No. 0071AB at the option of the Government. Payment shall include, labor, material, and equipment required to inspect, package and ship the thrust bearing shoe in accordance with 48 13 13.06 26.

Item No. 0071AC Machine Bearing Surface (Full Set) (OPTIONAL)

Payment for machining of the babbitted face of a set of shoes will be made on a per set basis basis under Item No. 0071AC at the option of the government. Payment shall include, labor, material, and equipment required to machine the babbitted face of one set of thrust bearing shoes (6 shoes per set) as shown on the drawings and in accordance with 48 13 13.06 26. Quantity for this CLIN includes the spare set.

Item No. 0071AD Machine Bearing Surface (Individual Shoe) (OPTIONAL)

Payment for machining of the babbitted face of an individual shoe will be made on a per shoe basis basis under Item No. 0071AD at the option of the government. Payment shall include, labor, material, and equipment required to machine the babbitted face of one set of thrust bearing shoes (6 shoes per set) as shown on the drawings and in accordance with 48 13 13.06 26. Quantity for this CLIN includes the spare set.

Item No. 0071AE Refurbish Thrust Bearing Shoes including Rebabbitting (Full Set) (OPTIONAL)

Payment for refurbishing a set of shoes including babbitting will be made on a per set basis under Item No. 0071AE at the option of the Government. Payment shall include, labor, material, and equipment required to refurbish one set of thrust bearing shoes (6 shoes per set), including but not limited to removing existing

SECTION 01 22 00.00 24 Page 18 Am0003


babbitt, pouring new Babbitt and machining of the babbitt including provision of oil supply grooves and other detail, machining of the backside if needed, inspection of finished shoes and final report as shown on the drawings and in accordance 48 13 13.06 26. Quantity for this CLIN includes the spare set.

Item No. 0071AF Refurbish Thrust Bearing Shoe Including Rebabbitting (Individual Shoe) (OPTIONAL)

Payment for refurbishing an individual shoe will be made on an individual basis under Item No. 0071AF at the option of the Government. Payment shall include, labor, material, and equipment required to refurbish one thrust bearing shoe, including but not limited to removing existing Babbitt, pouring new Babbitt and machining of the Babbitt including provision of oil supply grooves and other detail, machining of the backside if needed, and inspection of finished shoes and final report as shown on the drawings and in accordance with 48 13 13.06 26.

Item No. 0072 Refurbish Guide Bearings (OPTIONAL)

Item No. 0072AA Ship Generator Guide Bearing Pads (Full Set) (OPTIONAL)

Payment for shipment of the generator guide bearing pads (8 pads) will be made on a per set basis under Item No. 0072AA at the option of the Government. Payment shall include, labor, material, and equipment required to inspect, package and ship the generator guide bearing pads in accordance with SECTION 48 13 13.07 26.

Item No. 0072AB Ship Generator Guide Bearing Pad (Individual Pad) (OPTIONAL)

Payment for shipment of generator guide bearing pad (individual pad) will be made on a per pad basis under Item No. 0072AB at the option of the Government. Payment shall include, labor, material, and equipment required to inspect, package and ship the generator guide bearing pad in accordance with 48 13 13.07 26.

Item No. 0072AC Machine Bearing Surface of Generator Guide Bearing Pads (Full Set) (OPTIONAL)

Payment for machining of the babbitted face of a set of pads will be made on a per set basis basis under Item No. 0072AC at the option of the government. Payment shall include, labor, material, and equipment required to machine the babbitted face of one set of generator guide bearing pads (8 pads per set) in accordance with 48 13 13.07 26. Quantity for this CLIN includes the spare set.

Item No. 0072AD Machine Bearing Surface of Generator Guide Bearing Pad (Individual pad) (OPTIONAL)

Payment for machining of the babbitted face of an individual pad will be made on a per pad basis basis under Item No. 0072AD at the option of the government. Payment shall include, labor, material, and equipment required to machine the babbitted face of one generator guide bearing pad in accordance with 48 13 13.07 26. Quantity for this CLIN includes the spare set.

SECTION 01 22 00.00 24 Page 19 Am0003


Item No. 0072AE Refurbish Set of Generator Guide Bearing Pads including Rebabbitting (OPTIONAL)

Payment for refurbishing a set of pads including babbitting will be made on a per set basis under Item No. 0072AE at the option of the Government. Payment shall include, labor, material, and equipment required to refurbish one set of generator guide bearing pads (8 pads per set), including but not limited to removing existing babbitt, pouring new babbitt and machining of the babbitt including provision of oil supply grooves and other detail, machining of the hardened disc if needed, inspection of finished pads and final report in accordance with 48 13 13.07 26. Quantity for this CLIN includes the spare set.

Item No. 0072AF Refurbish Individual Generator Guide Bearing Pad including Rebabbitting (OPTIONAL)

Payment for refurbishing an individual shoe will be made on an individual basis under Item No. 0072AF at the option of the Government. Payment shall include, labor, material, and equipment required to refurbish one generator guide bearing pad, including but not limited to removing existing Babbitt, pouring new babbitt and machining of the babbitt including provision of oil supply grooves and other detail, machining of the hardened disc if needed, and inspection of finished pads and final report in accordance with 48 13 13.07 26.

Item No. 0072AG Ship Turbine Guide Bearing (OPTIONAL)

Payment for shipment of the turbine guide bearing will be made on a per unit basis under Item No. 0072AG at the option of the Government. Payment shall include, labor, material, and equipment required to inspect, package and ship the turbine guide bearing in accordance with 48 13 13.07 26.

Item No. 0072AH Refurbish Turbine Guide Bearing including Rebabbitting (OPTIONAL)

Payment for refurbishing a turbine guide bearing will be made on a per unit basis under Item No. 0072AGH at the option of the Government. Payment shall include, labor, material, and equipment required to refurbish one turbine guide bearing, including but not limited to removing existing babbitt and tinning material, pouring new babbitt and machining of the babbitt including provision of oil supply groves and other detail, perform build up and machining of OD taper fits, skim cut machining of split flange faces, inspection of finished guide bearing refurbishment and final report in accordance with 48 13 13.07 26. Quantity for this CLIN includes the spare turbine guide bearing.

Item No. 0073 Chrome Plate Gate Servomotor Piston Rods (OPTIONAL)

Payment for chrome plating gate servomotor piston rods will be made on a per servomotor basis under Item No. 0073 at the option of the Government. Payment shall include, labor, material, and equipment required to machine and chrome plate a piston rod, if necessary as shown on the drawings and in accordance with SECTION 48 13 13.04 26.

SECTION 01 22 00.00 24 Page 20 Am0003


Item No. 0074 Machine Additional 0.005 inch on Head Cover Facing Plate (OPTIONAL)

Payment for head cover refurbishment will be made on a lump sum basis under Item No. 0074. Payment shall include, labor, material, and equipment required to machine an additional 0.005 inches on the head cover facing plate in accordance with SECTION 48 13 13.04 26. If performed in the Contractor's workshop provide roundtrip transportation of the headcover.

Item No. 0075 Machine Additional 0.010 inch on Head Cover Flange Face (OPTIONAL)

Payment for head cover refurbishment will be made on a lump sum basis under Item No. 0075. Payment shall include, labor, material, and equipment required to machine an additional 0.010 inches on the head cover flange face in accordance with SECTION 48 13 13.04 26.

Item No. 0076 Machining of Turbine Shaft Below Shaft Sleeve (OPTIONAL)

Payment for machining of turbine shaft below shaft sleeve will be made on a lump sum basis under Item No. 0076. Payment shall include, labor, material, and equipment required for turbine shaft machining below the shaft sleeve. If necessary, a light machining cut shall be made on the surfaces below the packing box sleeve for the purpose of removing existing corrosion. Also, if necessary a light machining cut shall be made on the flange face and the spigot OD (male rabbet OD). The Contractor shall perform the machining on a lathe in the shop in accordance with SECTION 48 13 13.04 26.

Item No. 0077 Refurbish Speed Ring Flange Surfaces (OPTIONAL)

a. Payment for machining of speed ring flange surface refurbishment will be made on a lump sum basis under Item No. 0077AA through 0077AC Payment shall include, labor, material, and equipment required to weld buildup and machine the speed ring mounting flange (the surface to which the head cover mounts) as shown on the drawings and in accordance with SECTION 48 13 13.04 26.

b. List of refurbishment items for the speed ring:

Item No. 0077AA Weld Buildup and Machining to Correct for a Unit Out of Vertical Condition of 0.035 degrees Including Setup

Item No. 0077AB Additional Weld Buildup and Machining to Correct for a Unit Out of Vertical Condition of an addition 0.005 degrees

Item No. 0077AC Machining to Correct for a Unit Out of Vertical for Wicket Gate Operation

Item No. 0078 Machine Additional 0.005 inches on Bottom Ring Facing Plate (OPTIONAL)

Payment for bottom ring refurbishment will be made on a lump sum basis

SECTION 01 22 00.00 24 Page 21 Am0003


under Item No. 0078. Payment shall include, labor, material, and equipment required to refurbish the bottom ring by machining an addtional 0.005 inches including setup and machining of the bottom ring facing plate as shown on the drawings and in accordance with SECTION 48 13 13.04 26. If performed in the Contractors workshop provide roundtrip transportation of the bottom ring.

Item No. 0079 Machine Additional 0.010 inch on Bottom Ring Flange Face (OPTIONAL)

Payment for bottom ring refurbishment will be made on a lump sum basis under Item No. 0079. Payment shall include, labor, material, and equipment required to machine an additional 0.010 inches on the head cover flange face in accordance with SECTION 48 13 13.04 26.

Item No. 0080 Refurbish Curb Ring Flange Surfaces (OPTIONAL)


b. Payment for curb ring flange surface refurbishment will be made on a lump sum basis under Item No. 0080AA through 0080AB. Payment shall include, labor, material, and equipment required to weld buildup and machine the curb ring mounting flange (the surface to which the bottom ring mount) as shown on the drawings and in accordance with SECTION 48 13 13.04 26.

c. List of refurbishment items for the curb ring:

Item No. 0080AA Weld Buildup and Machining to Correct for a Unit Out of Vertical Condition of 0.035 degrees Including Setup

Item No. 0080AB Additional Weld Buildup and Machining to Correct for a Unit Out of Vertical Condition of an addition 0.005 degrees

Item No. 0081 Refurbish the Generator Shaft to Thrust Collar Connection (OPTIONAL)

Payment for refurbishing of the generator shaft to thrust collar will be made on a lump sum basis under Item No. 0081 Payment shall include labor, material, and equipment required for refurbishing and inspection of the existing generator shaft in order to return the connection to a perpendicular state in accordance with SECTION 48 13 13.04 26.

Item No. 0082 Refurbish Rotor Rim Laminations, Wedges, or Clamping, Including Design Engineering, Transport, Repairs, Inspections, and Installation (OPTIONAL)

Payment for refurbishing of the Rotor Rim Laminations, Wedges, or Clamping will be made on a lump sum basis, NTE $300,000, under Item No. 0082. Payment shall include all design engineering, transport, repairs, inspections, and installation in accordance with SECTION 48 13 16.20 26 . The Contractor shall receive authorization from the Government prior to use of this bid item. The Contractor shall submit invoices and shall be reimbursed at the rate of cost plus ____ percent (Contractor Fill In

SECTION 01 22 00.00 24 Page 22 Am0003


Percentage).

Item No. 0083 Refurbish Rotor Spider Including Design Engineering, Transport, Repairs, Inspections, and Installation (OPTIONAL)

Item No. 0083AA Design, Execute, and Inspect Weld Repairs

Payment for weld repairs of the rotor spider will be made on a lump sum basis, NTE $150,000, under Item No. 0083AA. Payment shall include all design, execution, and inspection of welds in accordance with SECTION 48 13 16.20 26 . The Contractor shall receive authorization from the Government prior to use of this bid item. The Contractor shall submit invoices and shall be reimbursed at the rate of cost plus ____ percent(Contractor Fill In Percentage).

Item No. 0083AB Design, Supply, and Install New Brake Ring and Appurtenances

Payment for new brake ring and appurtenances will be made on a lump sum basis, NTE $30,000, under Item No. 0083AB. Payment shall include all design, supply and installation of brake ring and appurtenances in accordance with SECTION 48 13 16.20 26 . The Contractor shall receive authorization from the Government prior to use of this bid item. The Contractor shall submit invoices and shall be reimbursed at the rate of cost plus ____ percent(Contractor Fill In Percentage).

Item No. 0083AC Design, Execute, and Inspect Spider Arm Concentricity/Verticality Corrections

Payment for Spider Arm Concentricity/Verticality Corrections will be made on a lump sum basis, NTE $200,000, under Item No. 0083AC. Payment shall include all design, execution, and inspection of cladding and/or machining in accordance with SECTION 48 13 16.20 26 . The Contractor shall receive authorization from the Government prior to use of this bid item. The Contractor shall submit invoices and shall be reimbursed at the rate of cost plus ____ percent (Contractor Fill In Percentage).

Item No. 0083AD Design, Execute, and Inspect Spider Modifications Including Stiffening and/or Coping

Payment for Spider Modifications Including Stiffening and/or Coping will be made on a lump sum basis, NTE $100,000, under Item No. 0083AD Payment shall include all design, execution, and inspection of spider modifications in accordance with SECTION 48 13 16.20 26 . The Contractor shall receive authorization from the Government prior to use of this bid item. The Contractor shall submit invoices and shall be reimbursed at the rate of cost plus ____ percent (Contractor Fill In Percentage).

Item No. 0083AE Perform "Heat Shrink" Installation of Rim Onto Spider

Payment for "Heat Shrink" will be made on a lump sum basis under Item No. 0083AE Payment shall include all equipment, expertise, and labor to perform "shrink" of rim onto spider in accordance

SECTION 01 22 00.00 24 Page 23 Am0003


with SECTION 48 13 16.20 26 .

Item No. 0084 Replace Steel Cooling and Packing Water Piping (OPTIONAL)

Payment for replacing steel cooling and packing water piping will be made on a lump sum basis under Item No. 0084 Payment shall include, labor, material, and equipment required to replace all steel cooling and packing water piping 1 1/2 inch and smaller in diameter. This work shall also include labor, materials, and equipment to install new modulating control valves for the surface air coolers, new on/off valves, new flow meters, removing the existing modulating valves and altering the piping to accommodate the new valves in accordance with SECTION 22 00 00.00 26.

Item No. 0085 Replace Copper Cooling and Packing Water Piping (OPTIONAL)

Payment for replacing copper cooling and packing water piping will be made on a lump sum basis under Item No. 0085 Payment shall include, labor, material, and equipment required to replace all copper cooling and packing water piping smaller than 3 inches in diameter in accordance with SECTION 22 00 00.00 26.

Item No. 0086 All Other Remaining Work

Paymen for all other remaining work shall be made on a lump sum basis under Item No. 0086. Payment shall include the labor, materials, mobilization, permits, and all work incidental to the completion of the required work according to the plans and specifications not covered on the Bidding Schedule in bid items No. 0001 thru No. 0085.

ALTERNATIVE PROPOSALS

Item No. 0087 and 0088 Alternative Proposals

Offerors proposing modifications or replacements not required by these specifications shall provide prices for those items on the blank lines shown on the Bid Schedule. The Offerors shall also provide Measurement and Payment paragraphs to be included in SECTION 01 22 00.00 24 and the information required by 00 22 00. If the Offeror's proposed modification requires that a Bid Schedule base or optional item not be provided, the Offeror shall insert "NA" for the amount of the Bid Schedule base or optional item.

PART 2 PRODUCTS - NOT USED

PART 3 EXECUTION - NOT USED

-- End of Section --

SECTION 01 22 00.00 24 Page 24 Am0003


SECTION TABLE OF CONTENTS

DIVISION 48 - ELECTRICAL POWER GENERATION

SECTION 48 13 13.01 26

HYDRAULIC TURBINE

PART 1 GENERAL

1.1 GENERAL INFORMATION 1.1.1 Existing Unit 1.1.2 Additional Modifications/Replacements 1.1.3 Replacement Turbine Assembly 1.1.4 Lifting and Handling 1.1.5 Minimum Requirements 1.2 REFERENCES 1.3 SUBMITTALS 1.4 STRESS REQUIREMENTS 1.4.1 Working Stresses 1.4.2 Higher Allowable Stresses 1.5 PERFORMANCE CONDITIONS AND GUARANTEES 1.5.1 Hydraulic Operating Conditions 1.5.2 Turbine Efficiency Guarantee 1.5.3 Cavitation 1.5.3.1 Cavitation Guaranteed Operating Region 1.5.3.2 Excessive Pitting 1.5.3.3 Repairs 1.5.4 Speed and Runaway Speed 1.5.5 Thrust Bearing Capacity 1.5.6 Stability, Vibration, and Noise 1.5.7 Previous Test Data 1.5.8 Performance Testing 1.5.8.1 General 1.5.8.2 Performance Requirements

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT 2.1.1 General 2.1.1.1 Classification/Grade of Materials 2.1.1.2 Rejected Equipment, Materials & Articles 2.1.1.3 Non-Utilized Materials 2.1.2 Steel Castings 2.1.2.1 General 2.1.2.2 Materials 2.1.2.3 Inspection 2.1.2.4 Repair 2.1.3 Not Used 2.1.4 Not Used 2.1.5 Corrosion-Resisting Steel Strip, Plate, Sheet & Bar 2.1.6 Not Used 2.1.7 Not Used 2.1.8 Chromium-Nickel Steel 2.1.9 Handling and Working of Corrosion Resistant Materials 2.1.10 Steel Plate 2.1.10.1 Steel Plates - Fabricated Turbine Parts 2.1.10.2 Steel Plates- Low-stress Parts

SECTION 48 13 13.01 26 Page 1 Am0003


2.1.11 Steel Forging 2.1.12 Bronze 2.1.12.1 Bronze Castings 2.1.12.2 Bronze Bearings, Bushings, and Thrust Discs 2.1.13 Hydraulic Packing

PART 3 EXECUTION

3.1 DRAWINGS / DESIGN DATA / CALCULATIONS 3.2 MEASUREMENTS 3.3 INSPECTION REPORTS & SHOP INSPECTIONS 3.4 NOT USED 3.5 GEOMETRIC SIMILARITY 3.5.1 General 3.5.2 Allowable Tolerances 3.5.3 Methodology for Assuring Similarity 3.5.4 Assembled Runner Measurements 3.6 PROTOTYPE RUNNER 3.6.1 General 3.6.2 Stress Analysis 3.6.3 Design 3.6.4 Turbine Air Admission 3.6.5 Crown Coupling Surface 3.6.6 Runner Cone 3.6.7 Runner Construction Plan and Schedule 3.6.8 Runner Construction and Materials 3.6.9 Surface Finishing Prior to Welding 3.6.10 Welding Requirements 3.6.11 Supplemental Inspection 3.6.12 Welding Inspection Report 3.6.13 Stress Relieving/Heat Treating 3.6.14 Hydraulic Surface Finish Requirements 3.6.15 Mechanical Balance 3.6.16 Not Used 3.6.17 Blade Shape Numerical File and CFD Files 3.6.17.1 Blade Shape Numerical File 3.6.17.2 CFD Computer Code/Technique 3.6.17.3 CFD Results, Analysis, and Evaluation Report 3.6.17.4 Govt. Use of Blade Shape and CFD Files 3.6.18 Finished Runner Inspection 3.7 RUNNER / SHAFT COUPLING FASTENERS 3.8 NAMEPLATE 3.9 MODIFICATIONS TO STAY RING OR STAY VANES 3.10 MODIFICATIONS TO DRAFT TUBE ELBOW 3.11 NOT USED 3.12 TURBINE, GENERATOR, AND GOVERNOR PIPING 3.13 TURBINE ELECTRICAL WIRING AND EQUIPMENT 3.14 SPECIAL TOOLS AND SCAFFOLDING 3.15 PRESERVATION FOR SHIPMENT

-- End of Section Table of Contents --

SECTION 48 13 13.01 26 Page 2 Am0003


SECTION 48 13 13.01 26

HYDRAULIC TURBINE

PART 1 GENERAL

1.1 GENERAL INFORMATION

1.1.1 Existing Unit

The existing Fort Peck Unit 2 turbine is a vertical Francis type supplied by the S. Morgan Smith Corporation. The turbine, which was placed in service in 1948, is rated at 20,000 hp at a net head of 140 feet. The current shafting limits operation to 28,000 hp. The turbine runner has 17 blades and a throat diameter of 103.6 inches, with 16 wicket gates. The wicket gate leaf height is approximately 26.28 inches. The unit turns in a clockwise direction when viewed from above, at 163.6 rpm. The generator, which was supplied by Allis-Chalmers Corporation and re-wound in 1978 by NEC, is rated at 19,211 KVA and 0.95 power factor, with a maximum overload of 100 percent and efficiency of 98%. The primary purpose for replacing the runner is to provide enhanced broad range performance using modern design technologies. The secondary purpose is to increase hydraulic efficiency.

1.1.2 Additional Modifications/Replacements

a. Non-contracted turbine modifications or replacement components shall not be incorporated in the new turbine without the written approval of the Government.

b. Unless otherwise specifically stated in these specifications, the Government does not intend to change the existing surface profile, finish (roughness), or fairness (waviness) of the turbine water passage elements. Hollows, depressions and projections resulting from existing surface profile deviation and various types of surface pitting will not be changed by the Government. Damage in excess of that described above and features in non-compliance with specification drawing dimensions (including IEC 60193 allowances for similarity and uniformity) will be repaired by the Government (refer to paragraph 1.5.3.1 for more details). If the Contractor determines better surface conditions are required to meet his performance or cavitation guarantees, he shall rehabilitate the surfaces at his expense.

1.1.3 Replacement Turbine Assembly

The Contractor shall provide all that is necessary to furnish and install a replacement turbine which is geometrically similar to the Contractor's computer model turbine and which achieves the performance guaranteed in the contract. The assembly shall interface with existing, modified, refurbished or replacement structural, mechanical and electrical components to produce a satisfactory operating generating unit. The replacement runner shall not cause the existing generating unit's electrical or mechanical characteristics to be altered or degraded in any way, unless otherwise specified herein or as approved. Components and structures affected by the Contractor's work, including component replacement or modification, shall be evaluated by the Contractor to determine if they are adequate for the intended future operation. Any modifications or equipment replacements to make these affected components useful and safe for future operation shall

SECTION 48 13 13.01 26 Page 3 Am0003


be at the Contractor's expense. In the event that Contractor proposed modifications impact other systems or components, the Contractor shall modify or replace said systems or components in such a manner as to maintain the functions and functionality which existed prior to commencing the refurbishment.

1.1.4 Lifting and Handling

Satisfactory means shall be provided for conveniently assembling and disassembling the entire unit from above. Additional lifting devices shall be furnished by the Contractor to handle the turbine parts and assemblies during the erection or disassembly of the unit as required to compliment and supplement existing Government devices and handling facilities, see SECTIONS 01 12 00 and 48 13 13.02 26.

1.1.5 Minimum Requirements

The following articles and paragraphs, except for those that specify requirements for spare parts and special wrenches and tools, prescribe the minimum requirements for one turbine receiving a new runner. Similar parts of the turbine shall be of the same materials and workmanship.

1.2 REFERENCES

The publications listed below form a part of these specifications to the extent referenced. The publications are referred to in the text by basic designation only.

AMERICAN WELDING SOCIETY (AWS)

AWS A5.4/A5.4M (2006) Stainless Steel Electrodes for Shielded Metal Arc Welding

ASME INTERNATIONAL (ASME)

ASME Section VIII Boiler and Pressure Vessel Code and Interpretations Rules for Construction of Pressure Vessels

ASTM INTERNATIONAL (ASTM)

ASTM A 27 (2005) Steel Castings, Carbon, for GeneralApplication

ASTM A 148/A 148M (2005) Steel Castings, High Strength, forStructural Purposes

ASTM A 176 (1999; R 2004) Stainless and Heat-Resisting Chromium Steel Plate, Sheet and Strip

ASTM A 193/A 193M (2008b) Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service

ASTM A 194/A 194M (2008b) Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both

SECTION 48 13 13.01 26 Page 4 Am0003


ASTM A 240/A 240M (2009) Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM A 283 (2003) Low and Intermediate Tensile Strength Carbon Steel Plates

ASTM A 285/A 285M (2003; R 2007) Standard Specification for Pressure Vessel Plates, Carbon Steel, Low- and Intermediate-Tensile Strength

ASTM A 380 (2006) Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems

ASTM A 479/A 479M (2006) Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

ASTM A 487/A 487M (1993; R 2007) Standard Specification for Steel Castings Suitable for Pressure Service

ASTM A 516 (2006) Pressure Vessel Plates, Carbon Steel, for Moderate and Lower Temperature Service

ASTM A 609/A 609M (1991, R2002) Standard Practice for Castings, Carbon, Low-Alloy, and Martensitic Stainless Steel, Ultrasonic Examination Thereof

ASTM A 668 (2004) Steel Forgings, Carbon and Alloy, for General Industrial Use

ASTM A 743 (2006) Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, forGeneral Application

ASTM B 22 (2002) Bronze Castings for Bridges and Turntables

ASTM B 584 (2006a) Copper Alloy Sand Castings forGeneral Applications

CAHIER DES CHARGES HYDRAULIQUES (CCH)

CCH 70-3 (1996) Specification for Inspection of Steel Castings for Hydraulic Machines

INTERNATIONAL ELECTROTECHNICAL COMMISSION (IEC)

IEC 60193 (1999) Hydraulic Turbines, Storage Pumps and Pump Turbines - Model Acceptance Tests

IEC 60609 (1978) Cavitation Pitting Evaluation inHydraulic Turbines, Storage Pumps and Pump-Turbines First Edition

SECTION 48 13 13.01 26 Page 5 Am0003


INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 810 (1987; R 2001) Hydraulic Turbine and Generator Integrally Forged Shaft Couplings and Shaft Runout Tolerances

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)

ISO 1940-1 (2003) Mechanical Vibration - Balance Quality Requirements for Rotors in a Constant (Rigid) State - Part 1: Specification and Verification of Balance Tolerance

SOCIETY OF AUTOMOTIVE ENGINEERS INTERNATIONAL (SAE)

SAE J 462 (1976, R 1981) Cast Copper Alloys

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation; submittals not having "G" designation are for Information Only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with SECTION 01 33 00.00 24, " SUBMITTAL PROCEDURES":

NOTE: For all submittals to be reviewed by the Hydro-Electric Design Center, so indicated by a "G, HDC" designation or an "F, HDC" designation, submittals and cover sheets/forms shall be sent via FTP or email in Adobe Acrobat PDF format, in addition to meeting all requirements of SECTION 01 33 00.00 24 SUBMITTAL PROCEDURES.

SD-02 Shop Drawings

Drawings of All Steel Castings, Showing the Location of Tension and Bend Test Specimens; G, HDC

90 calendar days prior to foundry work, paragraph 2.1.2.2

Detailed, Assembly, Sectional, Etc. Drawings of All New, Modified and Refurbished Components; G, HDC

120 calendar days following the date of formal written notice to proceed with prototype runner fabrication, but in no case later than 30 calendar days prior to commencing fabrication, rehabilitation, modification and/or replacement, paragraph 3.1

Runner Nameplate Drawing; G, HDC

30 calendar days prior to delivery of the first turbine runner, paragraph 3.8.b

SD-04 Samples

Upon Written Request, Samples of materials;

Within 10 calendar days of request, para. 2.1.1.1

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SD-05 Design Data

Deviations In Material Specifications; G, HDC

A minimum of 90 calendar days prior to use of materials, para. 2.1.1.1

Upon Written Request, Design Data and Calculations On Specific Systems Or Components; G, HDC

Within 15 calendar days from the date of request, para. 3.1.e

Static Balancing Results; G, HDC

Within 7 days of completion of balance, paragraph 3.6.15

Blade Shape Numerical File; G, HDC

60 calendar days following the date of formal written notice to proceed with prototype runner fabrication, para. 3.6.17.1.a

CFD Results, Analysis, and Evaluation Report; G, HDC

60 calendar days following the date of formal written notice to proceed with prototype runner fabrication, para. 3.6.17.3

Runner/Shaft Coupling Fastener Preload and Stress Calculations; G, HDC

60 calendar days following the date of formal written notice to proceed with prototype runner fabrication, para. 3.7.d

Stay Ring/Vane Modification Stress Analysis and Procedure (if applicable); G, HDC

120 calendar days following the date of formal written notice to proceed with prototype runner fabrication, para. 3.9.b

Draft Tube Elbow Modification Stress Analysis and Procedure (if applicable); G, HDC

120 calendar days following the date of formal written notice to proceed with prototype runner fabrication, para. 3.10.c

SD-06 Test Reports

For Each Component, Contractor's Internal Quality, NDT and Dimensional Inspection Reports; G, HDC

Including material test results. Within 7 calendar days of performing the inspection, para. 3.3.a

Prototype Blade Geometric Similarity / Uniformity Report; G, HDC

Within 7 days of final checks, para 3.5.3.c

Runner Stress Analysis; G, HDC

90 calendar days following date of formal written notice to

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proceed with prototype runner fabrication, para. 3.6.2

Finished Runner Shop Inspection Report; G, HDC

Preliminary report seven calendar days in advance of the date scheduled for the inspection, final report within 14 calendars of the completion of the inspection, para. 3.6.18

SD-07 Certificates

Notice of Coupon Removal;

At least 30 calendar days in advance, 45 days if a Visa is required for travel, para. 2.1.2.2.d

Notice of Final Casting Witness Inspection;

At least 30 calendar days prior to the commencement of the work, or 60 days for countries that require a Visa for U.S. Govt. visitors, paragraph 2.1.2.3.g

Notice of Finished Runner Inspection;

At least 30 calendar days in advance, para. 3.6.18

SD-08 Manufacturer's Instructions

Method and procedure for determining the volume of cavitation damage; G, HDC

A minimum of 90 calendar days prior to the inspection, paragraph 1.5.3.2.b

Cavitation Repair Procedure; G, HDC

A minimum of 90 calendar days prior to commencement of the work, para. 1.5.3.3.a

Welding Repair Procedure; G, HDC

A minimum of 7 calendar days prior to repair, paragraph 2.1.2.4

Procedure For Checking Geometric Similarity Between Design And Prototype; G, HDC

150 calendar days following the date of formal written notice to proceed with prototype runner fabrication, paragraph 3.5.3.b

Runner Construction Plan and Work Schedule; G, HDC

Within 30 calendar days of the formal written notice to proceed with prototype runner fabrication, paragraph 3.6.7

1.4 STRESS REQUIREMENTS

1.4.1 Working Stresses

a. Appropriate safety factors shall be used throughout the design,

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especially in the design of all parts subject to alternating stresses or shock. Maximum unit stresses in tension and compression for parts of the turbine under normal operating conditions shall not exceed the values in the following table:

Allowable Maximum Unit Stress

Material Maximum Allowable Stress

Cast Iron 2,000 psi Tension & 10,000 psi Compression

Steel & Other Ductile 20 percent of ultimate strength or 33Materials percent of yield strength

b. The unit stress for ductile materials shall be defined as the combined stress calculated for a triaxial stress state using the three principal stresses. The combined stress shall be calculated using the distortion-energy (von Mises-Hencky) theory.

c. If a stress analysis is performed on a component and local stress exceeds the levels identified above, the Contractor shall demonstrate to the satisfaction of the Government that the elevated stresses do not jeopardize the function or life expectancy of the component. The component design shall be modified, if necessary, to address the Government concerns.

d. The following shall be considered normal operating conditions to be assumed for the stress calculations:

(1) Operation throughout the net head and tail water range identified in paragraph 1.5.1, from speed-no-load up to and including the gate openings at which the turbine is capable of producing 28,000 hp.

(2) Load rejection at 208 feet net head from 28,000 hp with the wicket gates timed to move a full closing stroke with the turbine watered in 8.7 seconds, as originally designed.

1.4.2 Higher Allowable Stresses

Unit stresses higher than those permitted by 1.4.1 above, but not to exceed two-thirds (2/3) of the yield point, will be permitted for all affected parts of the turbine when operating at maximum runaway speed under conditions of maximum head with the wicket gates at the maximum runaway position and no load on the generator.

1.5 PERFORMANCE CONDITIONS AND GUARANTEES

1.5.1 Hydraulic Operating Conditions

The turbine shall operate safely, effectively, and efficiently over a range of net heads and flows as described in Table 3 and the Table 2 tailwater elevations. Additionally, the turbine shall operate safely at flows as low as 500 cfs with low levels of cavitation and vibration. The centerline of the turbine is located at an elevation of 2040 feet. The measurement of net head is described in paragraph 1.5.8.3.

SECTION 48 13 13.01 26 Page 9 Am0003


1.5.2 Turbine Efficiency Guarantee

a. The Contractor shall guarantee a weighted prototype hydraulic efficiency; weightings are not defined by amount of time operated in each location. The weighted efficiency shall be calculated as follows:

(1) Determine the expected prototype hydraulic efficiencies at twelve (12) operational conditions (150, 179, and 208 feet net head each at 25% max power, 50% max power, peak efficiency, and maximum power)

(2) Multiply each of the twelve efficiencies in Step 1 by its corresponding weighting factor listed in Table 1.

(3) The weighted efficiency is the sum of the twelve products calculated in Step 2.

b. The guaranteed weighted prototype hydraulic efficiency shall be no less than 88.5%.

c. The guaranteed efficiencies shall be valid for the hardware configuration offered. The verification of the Contractor's guaranteed weighted turbine efficiency shall be based on the SECTION 48 13 13.00 26model testing as specified in this section.

d. The adjustment for efficiency to be applied for a runner of different diameter shall be 1/2 of the correction factor determined by the Moody formula (see SECTION 48 13 13.00 26). The prototype turbine shall be designed to have good efficiencies throughout a wide load range and over its operating head range.

e. The peak efficiency for individual net heads shall conform to Table 2.

f. Should the power guarantees mentioned in Table 3, the efficiency at the points in Table 1 shall be considered 0%.

g. Turbine performance shall be evaluated using the value of $50 006 per 0.1% efficency.

TABLE 1Turbine Prototype Hydraulic Efficiency Weighting Factors

Net Head Power:25% Max Power

Power:50% Max Power

Power:Peak

Efficiency

Power:Maximum

(see Table 3)

150 ft 0.01925 0.11725 0.09625 0.11725

179 ft 0.0165 0.1005 0.0825 0.1005

208 ft 0.01925 0.11725 0.09625 0.11725

TABLE 2Turbine Prototype Peak Efficiencies

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Net Head Peak Range

150 ft 15,000 hp to 18,000 hp

179 ft 19,500 hp to 22,100 hp

208 ft 22,500 hp to 25,500 hp

1.5.3 Cavitation

1.5.3.1 Cavitation Guaranteed Operating Region

a. The Contractor shall guarantee that the cavitation requirements will be met within the operating region described by the Table 2 tailwater elevations and the net heads and corresponding power ranges indicated in Tables 3 and 4.

b. The Contractor shall guarantee that while operating within this region, the turbine shall meet the cavitation requirements as specified in SECTION 48 13 13.00 26 paragraph 3.1.10. The verification of the guaranteed operating range shall be based on the SECTION 48 13 13.00 26 model testing.

TABLE 3No Visible Cavitation Guaranteed Operating Range

Determined by Model

Net Head Minimum Power Maximum Power Tailwater

150 ft 13,000 hp 20,000 hp 2031 ft msl

179 ft 17,000 hp 26,000 hp 2031 ft msl

208 ft 19,500 hp 28,000 hp 2031 ft msl

TABLE 4No Contacting Cavitation Guaranteed Operating Range

Determined by Model

Net Head Minimum Power Maximum Power Tailwater

150 ft 7,850 hp 20,000 hp 2031 ft msl

179 ft 9,500 hp 26,000 hp 2031 ft msl

208 ft 10,900 hp 28,000 hp 2031 ft msl

c. The Contractor shall guarantee/warrant the new, refurbished and modified turbine components, and rehabilitated water passage surfaces, against excessive pitting due to c

hydro unit refurbishment contract

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