Complete_Swine_Generator_Specification_2_(2).pdf

BID SCHEDULE

ITEM NO. DESCRIPTION AMOUNT

BASIC BID For furnishing labor, supervision, materials, ITEM #1 tools, equipment, transportation, etc., necessary to install generators, panel boards, switches, and all other associated electrical work for the swine area at the UNITED

STATES DEPARTMENT OF AGRICULTURE,

Agricultural Research Service, Roman L.

Hruska U.S. Meat Animal Research Center, Clay Center, Nebraska, in accordance with the attached specifications and drawings.

ALL FOR THE LUMP SUM OF………………$___________

TABLE OF CONTENTS

DIVISION 1- GENERAL REQUIREMENTS

0101 - SUMMARY OF WORK

0130 - SHOP DRAWINGS

0160 - USE OF GOVERNMENT FACILITIES (UTILITIES, ETC.)

0180 - CLEANUP

DIVISION 3 – CONCRETE

0330 – CONCRETE

DIVISION 16 – ELECTRICAL

1604 - AUTOMATIC TRANSFER SWITCHES

1605 – ELECTRICAL SYSTEMS

2632 - GENERATORS AND ENGINES

DIVISION I

SECTION 0101

SUMMARY OF WORK

The work consists of providing all labor, material, and equipment and performing all work to install an emergency generator system in the swine area so that all buildings in this area shall be fully operable upon a loss of utility electrical service. The transfer from utility power to generator power shall be done automatically and shall return to utility power automatically upon restoration of utility power. This work shall include, but shall not be limited to the following:

1. Installation of 3 pad mounted emergency generators with generator locations as shown on the drawings.

2. Installation of all automatic transfer switches, conductors, controllers, panel boards, conduit, and all other material for a completely operable, automatic emergency electrical power system.

3. Connection to existing utility service electrical to swine buildings as shown on the drawings.

4. All trenching and back fill of conductors from generators/panel boards to automatic transfer switches and any other trenching and backfill to complete the project.

5. Concrete pads for generators and panel boards as approved by manufacturer.

6. Installation of additional pole mounted disconnect switches as shown.

7. Installation of pole mounted advanced electrical meters as shown.

8. All wiring, conduit, wire protection devices, etc. for a completely operable, and safe system.

9. Installation of panel boards with properly sized breakers.

10. All wiring between generators, panel boards, controllers, automatic transfer switches, utility power, etc.

11. Commissioning: Complete commissioning shall be performed by factory trained and experienced start-up personnel.

12. Training: Training of location personnel as necessary for complete maintenance and operation of system.

13. Contractor shall provide temporary generators as needed any time buildings are taken out of service for this project.

0101-1

14. If there is anything indicated for the project in the design documents that isn't compatible with contractor's supplier's equipment, the contractor shall still be responsible for providing all necessary equipment and material for the generators and generator systems to function as intended.

15. Contractor shall return after one year after completion of project to fully test operation of generators and associated equipment.

16. It is required that any personnel entering a swine building will be required to "shower in" at the location shower facility which is located on the north end of the swine area.

SECTION 0130

SHOP DRAWINGS

1. Submit shop drawings to the Contracting Officer’s Representative (COR) for approval prior to installation. Information in the form of drawings, product literature, manufacturer’s specification, equipment lists, etc. shall be submitted on the following:

Specification

Description Drawings Literature Schedule

a. Engines/Generators x x x

b. Automatic Transfer Switches x x x

d. Panel Boards x x

e. Controllers x

f. Items under Division 16 x

The Contracting Officer may request submittals in addition to those listed when deemed necessary to adequately describe the work covered in the respective sections.

2. Each submittal shall be complete and in sufficient detail for ready determination of compliance with the contract requirements.

3. Submittal shall be submitted in four (4) copies to the COR using the transmittal form. The form shall be properly completed by filling out all the heading block spaces and identifying each item submitted. Special care should be exercised to insure proper listing of the specification paragraph and/or sheet number of the contract drawings pertinent to the data submitted for each item. A separate transmittal form shall be attached to each copy of the data being submitted.

4. Brand Name: Identification of items in the contract documents is intended to be descriptive, not restrictive, and is to indicate the quality and characteristics of products that will be satisfactory.

0101-2, 0130-1

SECTION 0160

USE OF GOVERNMENT FACILITIES (UTILITIES, ETC.)

1. Water, Gas, Electricity:

a. As mutually agreed upon between the Contractor and the COR, the Contractor may use nearby utilities required for his performance under this contract.

b. Contractor shall bear the cost of temporary connections (if necessary) and restoration upon conclusion of use.

c. The Government shall bear the cost of reasonable utility consumption. Government will not pay the cost of utilities if usage is abused.

d. The Contractor shall submit for approval written notification not less than 4 working days in advance of requirement to shut down any utilities or other services to or within existing building or facilities used by others.

2. Telephone:

a. Contractor shall arrange and pay for any telephone service they choose to provide for themselves.

3. Toilet:

a. Contractor shall provide their own toilet facility.

4. Access to Buildings:

a. Contractor’s access to buildings shall be limited to those areas where work is being performed.

5. Material Receiving:

a. Contractor shall be on-site to receive materials. Contractor shall arrange for own storage of materials unless other arrangements have been agreed to by owner.

SECTION 0180

CLEANUP

0160-1, 0180-1

1. Cleanup:

a. The Contractor shall keep the premises clean during construction and shall remove all rejected material, rubbish, etc., after completion of work and prior to final inspection.

b. Materials removed by the Contractor shall become the property of the contractor and shall be removed from the site unless otherwise agreed to by the owner.

c. Government dumpsters shall not be used by the contractor.

0180-2

* End of Section

SECTION 0330

CONCRETE WORK

1. Scope:

a. Concrete work shall include all structural and miscellaneous items indicated or as obviously intended to be concrete as necessary to complete the project.

b. Submittals:

1. Submit data for proprietary materials and items, including admixtures, patching compounds, curing compounds, and others as requested by the C.O.R.

2. Reinforcement: Submit shop drawings for fabrication, bending, and placement of concrete reinforcement. Comply with ACI 315 “Manual of Standard Practice for

Detailing Reinforced Concrete Structures”.

3. Submit laboratory test reports for concrete materials and mix design test.

4. Provide material certificates in lieu of materials laboratory test reports when permitted by C.O.R. Materials certificates shall be signed by manufacturer and Contractor, certifying that each material item complies with, or exceeds, specified requirements.

Provide certification from admixture manufacturers that chloride content complies with specification requirements.

c. Codes and Standards: Comply with provisions of following codes, specifications and standards, except where more stringent requirements are shown or specified.

1. ACI 301 “Specifications for Structural Concrete for Buildings”.

2. ACI 318 “Building Code Requirements for Reinforced Concrete”.

3. Concrete Reinforcing Steel Institute, “Manual of Standard Practice”.

2. Concrete Materials:

a. Portland cement shall be ASTM CISO, Type I. Use one brand of cement through project.

b. Water: Drinkable.

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c. Air-Entraining Admixture: ASTM C 260, certified by manufacturer to be compatible with other required admixtures.

d. Water Reducing Admixtures: ASTM C 494, Type A, and containing not more than 0.1 percent chloride ions.

e. Water-Reducing, Non-Chloride Accelerator Admixture: ASTM C494, type E, and containing not more than 0.1 percent chloride ions.

f. Prohibited Admixtures: Calcium chloride thyocyanates or admixtures containing more than 0.1 percent chloride ions are not permitted.

g. Granular base shall be evenly graded mixture of fine and coarse aggregates to provide, when compacted, a smooth and even surface below slabs on grade.

h. Absorptive Cover: Burlap cloth made from jute or kenaf, weighing approximately 9 oz.

Per yd., complying with ASSHTO M 182, Class 2.

i. Moisture-Retaining Cover: One of the following, complying with ASTM C 171.

Waterproof paper.

Polyethylene film.

Polyethylene-coated burlap.

j. Liquid Membrane-Forming Curing Compound: Liquid type membrane- forming curing compound complying with ASTM C 309, Type I, Class A. Moisture loss not more than

.055 gr./sq. cm. when applied at 200 sq. ft./gal.

3. Proportioning and Design of Mixes:

a. Prepare design mixes for each type and strength of concrete by either laboratory trial batch or field experience methods as specified in ACI 301. If trial batch method is used, use an independent testing facility acceptable to C.O.R. for preparing and reporting proposed mix designs.

b. Submit written reports to C.O.R. of each proposed mix for each class of concrete at least

15 days prior to start of work. Do not begin concrete production until mixed have been reviewed by C.O.R.

c. Proportions of aggregate to cement and water shall be such as to produce a concrete which will work readily into corners, angles or forms and around reinforcement and without permitting material to segregate or excess water to collect on the surface.

Comply with requirements of ASTM C 94 and as herein specified for ready mix concrete.

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d. The combined aggregates shall be such that when separated on the No. 4 standard sieve, the weight passing the sieve, for fins aggregate, shall not be less than 44% nor greater than 88% of the total.

Strength Allowable water Portland Cement per sack of cement per cubic yd. of concrete

3,000 lbs. 6-1/2 Gals 6.0 sacks

(94 lbs., per sack)

e. Slump Limits: Proportion and design mixes to result in concrete slump at point of placement as follows:

Ramps, slabs, and sloping surfaces: Not more than 3” .

Reinforced foundation systems: Not less than 1” and not more than 3”.

Other concrete: Not less than 1” nor more than 4”.

4. Admixtures:

a. Use air-entraining admixture in exterior exposed concrete, unless otherwise indicated.

Add air-entraining admixture at manufacturer’s prescribed rate to result in concrete at point of placement, having total air content with a tolerance of plus-or-minus 1-1/2 percent within following limits.

1. Concrete structures and slabs exposed to freezing and thawing, deicer chemicals, or subjected to hydraulic pressure: 6.0 percent (severe exposure) 1” maximum aggregate.

2. Other concrete (including all interior concrete) (not exposed to freezing, thawing, or hydraulic pressure)” 2 percent to 4 percent air.

5. Mixing:

a. On-the-job mixed concrete shall be mixed in a revolving drum-type mixer. Concrete shall be mixed not less than 1-1/2 minutes after all materials, including water are in the mixer.

b. No caked or lumpy materials or partially set or re-tempered concrete shall be used.

c. Concrete shall be placed immediately after mixing, in such a manner as will prevent segregation of the aggregates or a displacement reinforcing. It shall be deposited as nearly as practicable in its final position to avoid re-handling.

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d. As far as practicable, concrete shall be placed in each section of the work in a continuous operation so as to avoid construction joints.

e. Cement shall be stored at the site in such a manner that it will not absorb moisture from the ground and shall be covered so as to be completely protected from the elements.

Cement which hardens or partially sets shall not be used.

6. Forms:

a. Forms shall be provided for all concrete work with exposed vertical surfaces.

b. Form Materials:

1. Forms for Unexposed Finish Concrete: Plywood, lumber, metal, or other acceptable material. Provide lumber dressed on at least 2 edges and one side for tight fit.

2. Forms for Exposed Finish Concrete: Plywood, metal, metal-framed plywood faced, or other acceptable panel-type materials, to provide continuous, straight, smooth, exposed surfaces. Furnish in largest practicable sizes to minimize number of joints and to conform to joint system shown on drawings.

a. Use overlaid plywood complying with U.S. Product Standard PS-1 “A-C or B-B

High Density Overlaid Concrete Form”, Class I.

3. Form Coatings: Provide commercial formulation form-coating compounds that will not bond with, stain, nor adversely affect concrete surfaces, and will not impair subsequent treatments of concrete surfaces.

c. Forms shall be built true to line, and shall be mortar-tight and sufficiently rigid to prevent displacement or bulging between supports. All forms for concrete walls which will be exposed shall be of sound plywood or fiberboard closely fitted to give best surface possible without special lining. Joints shall be minimized as much as possible. Other forms may be of sound lumber, free from loose knots.

d. All forms not oiled shall be wet down immediately before concrete is poured.

e. All anchors, ties, inserts, drains, etc., required in connection with other work shall be placed accurately and built into the forms.

f. All form work shall be cleaned before placing concrete.

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g. Screeds shall be provided until concrete has attained sufficient strength on the judgement of the COR, to support its own weight plus construction live loads.

7. Reinforcement:

a. Reinforcing Materials:

1. Reinforcing Bars (Rebar): ANSI/ASTM A 615, Grade 40, deformed.

2. Steel Wire: ANSI/ASTM A 82, plain, cold-drawn, steel.

3. Welded Wire Fabric (WWF): ANSI/ASTM A 185, welded steel wire fabric.

b. Supports for Reinforcement:

1. Provide supports for reinforcement including bolsters, chairs, spacers, and other devices for spacing, supporting and fastening reinforcing bars and welded wire fabric in place. Use wire bar type supports complying with CRSI recommendations, unless otherwise acceptable.

a. For slabs-on-grade, use supports with sand plates or horizontal runners where base material will not support chair legs.

b. For exposed-to-view concrete surfaces, where legs of supports are in contact with forms, provide supports with legs which are plastic protected (CRSI, Class I or stainless steel protected (CRSI, Class 2).

c. Placing Reinforcement:

1. Comply with concrete reinforcing steel institute’s recommended practice for “Placing

Reinforcing Bars” which shows details and methods for reinforcement placement and supports. Additionally, comply with placing reinforcing as herein specified.

a. Accurately position, support, and secure reinforcement against displacement by formwork, construction, or concrete placement operation. Locate and support reinforcing by metal chairs, runners, bolsters, spacers, and hangers, as required.

b. Place reinforcement to obtain at least minimum coverage for concrete protection.

Arrange, space, and securely tie bars and bar supports to hold reinforcement in position during concrete placement operations. Set wire ties so ends are directed into concrete, not toward exposed concrete surfaces.

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c. Install welded wire fabric in as long of lengths as practicable, aligned with building grid. Lap adjoining pieces at least one full mesh and lace splices with wire. Offset end laps in adjacent widths to prevent continuous laps in either direction.

1. Terminate wire fabric at each construction joint in slab on grade. Do not extend across joint.

2. Extend wire fabric across control joints, but cut out and remove alternate wires crossing control joints.

d. Reinforcing steel fabricated to shapes and dimensions shown on approved shop drawings, or required to carry out intent of drawings and specifications. Before being placed, reinforcement shall be thoroughly cleaned of rust, mill scale, coating, including ice, that would reduce or destroy the bond. Reinforcement reduced in section shall not be used. Following any substantial delay in the work, previously placed reinforcement left for future bonding shall be inspected and cleaned.

Reinforcement shall not be bent or straightened in a manner injurious to the materials.

Bars with kinks or bends not shown on drawings shall not be placed. Laps or splices shall be of adequate length to transmit stresses: Splices in adjacent bars shall be staggered.

e. Concrete covering reinforcing steel, where concrete surfaces, after removal of forms, are exposed to weather or ground except as otherwise shown on the drawings or specified shall conform to the following requirements:

Reinforcement Min Concrete Cover

For bars more than 5/8 inch in dia. 2 inches

For bars 5/8 inch or less in dia. 1-1/2 inches

d. Shop Drawings:

1. Shop detail and placing drawings for all reinforcing steel shall be furnished for approval.

8. Joints:

a. Construction Joints: Locate and install construction joints as indicated or, if not indicated, locate so as not to impair strength and appearance of the structure as acceptable to C.O.R.

0330-6

b. Provide keyway at least 1-1/2” deep in construction joints in walls, slabs, and between walls and footings. Accepted bulkheads designed for this purpose may be used for slabs.

c. Isolation Joints in Slabs-on-Ground: Construct isolation joints in slabs-on-ground at points of contact between slabs-on-ground and vertical surfaces, such as column pedestals, foundation walls, grade beams, and elsewhere as indicated.

1. Joint filler and sealant materials are specified in Division-7 sections of these specifications.

d. Contraction (Control) Joints in Slabs-on-Ground: Construct contraction joints in slabs-on-ground to form panels of patterns as shown. Use inserts ¼” wide x ¼ of slab depth, unless otherwise indicated.

1. Form contraction joints by inserting pre-molded plastic, hardboard or fiberboard strip into fresh concrete until top surface of strip is flush with slab surface. Tool slab edges round on each side of insert. After concrete has cured, remove inserts and clean groove of loose debris.

2. If joint pattern not shown, provide joints not exceeding 15’-0” in either direction and located to conform to bay spacing wherever possible (at column centerlines, half bays, third-bays).

9. Concrete Placement:

a. Before placing concrete, inspect and complete formwork installation, reinforcing steel, and items to be embedded or cast-in. Notify other crafts to permit installation of their work and cooperate with other trades in setting such work. Moisten wood forms immediately before placing concrete where form coatings are not used. Formwork & reinforcing steel must be approved by the C.O.R. before placing concrete.

b. Comply with ASI 304: Recommended Practice for Measuring, Mixing, Transporting, and Placing Concrete”, and as herein specified.

c. Deposit concrete continuously or in layers of such thickness that no concrete will be placed on concrete which has hardened sufficiently to cause the formation of seams or planes of weakness. If a section cannot be placed continuously, provide construction joints as herein specified. Deposit concrete as nearly as practicable to its final location to avoid segregation.

0330-7

d. Deposit concrete in forms in horizontal layers not deeper than 24” and in a manner to avoid inclined construction joints. Where placement consists of several layers, place each layer while preceding layer is still plastic to avoid cold joints.

e. Do not use vibrators to transport concrete inside forms. Insert and withdraw vibrators vertically at uniformly spaced locations not farther than visible effectiveness of machine.

Place vibrators to rapidly penetrate placed layer and at least 6” into preceding layer. Do not insert vibrators into lower layers of concrete that have begun to set. At each insertion limit duration of vibration to time necessary to consolidate concrete and complete impediment of reinforcement and other embedded items without causing segregation of mix.

f. Deposit and consolidate concrete slabs in a continuous operation, within limits of construction joints, until the placing of a panel or section is completed.

g. Consolidate concrete during placing operations so that concrete is thoroughly soaked around reinforcement and other embedded items and into corners.

h. Bring slab surfaces to correct level with straightedge and strike-off. Use bull floats or darbies to smooth surface free of humps or hollows. Do not disturb slab surface prior to beginning finishing operations.

i. Maintain reinforcing in proper position during concrete placement operations.

j. Protect concrete work from physical damage or reduce strength which could be caused by frost, freezing actions, or low temperatures, in compliance with ACI 306 and as herein specified.

k. When air temperature has fallen to or is expected to fall below 40 deg F (4 deg C), uniformly heat water and aggregates before mixing to obtain a concrete mixture temperature of not less than 50 deg F (10 deg C), and not more than 89 deg F (27 deg C) at point of placement.

l. Do not use frozen materials or materials containing ice or snow. Do not place concrete on frozen subgrade or on subgrade containing frozen materials.

m. When not weather conditions exist that would seriously impair quality and strength of concrete, place concrete in compliance with ACI 305 and as herein specified.

0330-8

n. Cool ingredients before mixing to maintain concrete temperature at time of placement below 90 deg C (32 deg C). Mixing water may be chilled, or chopped ice may be used to control temperature provided water equivalent of ice is calculated to total amount of mixing water. Use of liquid nitrogen to cool concrete is contractor’s option.

o. Cover reinforcing steel with water-soaked burlap if it becomes too hot so that steel temperature will not exceed the ambient air temperature immediately before embodiment in concrete.

p. Fog spray forms, reinforcing steel, and subgrade just before concrete is placed.

q. Use water reducing retarding admixture (Type D) when required by high temperatures, low humidity, or other adverse placing conditions.

10. Finish of Formed Surfaces:

a. Provide as-cast concrete surface obtained with specified form facing material, arranged orderly and with a minimum of seams. Repair and patch defective areas; completely remove fins and other projections, leaving a smooth surface.

11. Monolithic Slab Finishes:

a. Apply float finish to monolithic slab surfaces to receive trowel finish and other finishes as herein after specified.

1. After screeding, consolidating, and leveling concrete slabs, do not work surface until ready for floating. Begin floating when surface water has disappeared or when concrete has stiffened sufficiently to permit operation of power-driven floats, or both.

Consolidate surface with power-driven floats, or by hand-floating if area is small or inaccessible to power units. Check and level surface place to tolerances appropriate to achievement of specified trowel finish tolerances. Where float finish is to be final finish, or to receive non-slip finish, finish to tolerance ¼” in 10’ when tested with 10’ straightedge. Cut down high spots and fill low spots. Uniformly slope surfaces to drains. Immediately after leveling, refloat surface to a uniform, smooth, granular texture.

b. Apply trowel finish:

1. After floating, begin first trowel finish operation using a power-driven trowel or hand trowel if area is small or inaccessible to power units. Begin final trawling when surface produces a ringing sound as trowel is moved over surface. Consolidate concrete surface by final hand-trawling operation, free of trowel marks, uniform in texture and appearance, and with surface leveled to tolerances of ¼” in 10’ when tested with 10’ straightedge.

0330-9

12. Concrete Curing & Protection:

a. Protect freshly placed concrete from premature drying and excessive cold or hot temperature.

b. Start initial curing as soon as free water has disappeared from concrete surface after placing and finishing. Keep continuously moist for not less than 7 days.

c. Begin final curing procedures immediately following initial curing and before concrete has dried. Continue final curing for at least 7 days in accordance with ACI 301 procedures. Avoid rapid drying at end of final curing period.

d. Curing methods shall be subject to indicated restrictions, perform curing of concrete by curing and sealing compound, by moist curing by moisture-retaining cover curing, , and by combinations thereof, as herein specified.

e. Provide moisture curing by following methods.

1. Keep concrete surface continuously wet by covering with water.

2. Continuos water-fog spray.

3. Covering concrete surface with specified absorptive cover, thoroughly saturating cover with water and keeping continuously wet. Place absorptive cover to provide coverage of concrete surfaces and edges, with 4” lap over adjacent absorptive covers.

f. Provide moisture-cover curing by following method:

1. Cover concrete surfaces with moisture-retaining cover for curing concrete, placed in widest practicable width with sides and ends pagged at least 3” and sealed by waterproof tape or adhesive. Immediately repair any holes or tears during curing period using cover material and waterproof tape.

h. Cure formed concrete surfaces by moist curing with forms in place for full curing period or until forms are removed. If forms are removed, continue curing by methods specified above, as applicable.

i. Cure slabs by application of appropriate curing method.

13. Removal of Forms:

a. Formwork not supporting weight of concrete, such as sides of beams, walls, columns, and similar parts of the work, may be removed after cumulatively curing at not less than 50 deg. F. for 24 hours after placing concrete, provided concrete is sufficiently hard to not be damaged by form removal operation, and provided curing and protection operation are maintained. 0330-10

b. Clean and repair surfaces of forms to be re-used. Split, frayed, delaminated, or otherwise damaged form facing concrete will not be acceptable for exposed surfaces. Apply new form coating compound as specified for new formwork.

c. When forms are extended for successive concrete placement, thoroughly clean surfaces, remove fins and Latinate, and tighten forms to close joints. Align and secure joint to avoid offsets, Do not use “patched” forms for exposed concrete surfaces, except as acceptable to C.O.R.

14. Miscellaneous Concrete Items:

a. Fill-in holes and openings left in concrete structures for passage of work by other trades, unless otherwise shown or directed, after work of other trades is in place. Mix, place, and cure concrete as herein specified, to blend with in-place construction. Provide other miscellaneous concrete filling shown or required to complete work.

b. Grout base plates and foundations as indicated, using non-shrink, non-metallic grout.

15. Concrete Surface Repairs:

a. Test unformed surfaces, such as monolithic slabs, for smoothness and verify surface plane to tolerances specified for each surface and finish. Correct low and high areas as herein specified. Test unformed surfaces sloped to drain for trueness of slope, in addition to smoothness using a template having required slope.

b. Repair finished unformed surfaces that contain defects which affect durability of concrete. Surface defects, as such, indulge crazing, cracks in excess of 0.01” wide or which penetrate to reinforcement or completely through non-reinforced sections regardless of width, spalling, popouts, honeycomb, rack pockets, and other objectionable conditions.

c. Correct high areas in unformed surfaces by grinding, after concrete has cured at least 14 days.

d. Correct low areas in unformed surfaces during or immediately after completion of surface finishing operation, by cutting out low areas and replacing with fresh concrete. Finish repaired areas to blend into adjacent concrete. Proprietary patching compounds may be used when acceptable to Contracting Officer.

e. Exposed vertical surfaces shall have honeycomb, etc., patched, all projections removed and shall be smooth.

16. Testing:

0330-11

a. Employ, at contractor’s expense, a testing laboratory acceptable to owner to perform material evaluation tests and to design concrete mixes. Testing shall include the following information:

Concrete Type Ticket No.

Class, psi Identification, laboratory

Mix No. Identification, field

Coarse agg, lb Date cast

Fine agg, lb Date received at laboratory

Cement, lb Date tested

Total water, gal Days cured in field

Admixture, type Days cured in laboratory

Admixture, quantity Age of test, days

Cement factor, sk/yd3 Weight when received, lb

Water-cement ratio, gal./sk Length of specimen, in.

Slump, in. Diameter of specimen, in.

Weight per cubic foot, lb Cross-sectional area, in.2

Air content, % Maximum load, lb

Temperature of concrete, F Type of fracture

Required strength, psi

b. Materials and installed work may require testing and retesting, as directed by owner, at any time during progress of work. Allow free access to material stockpiles and facilities.

Tests, not specifically indicated to be done at owner’s expense, including retesting of rejected materials and installed work, shall be done at contractor’s expense.

c. Concrete Test Specimens: During the progress of the work, compression tests specimens shall be made and cured by the testing laboratory in accordance with

ASTM C-31. Not less than three specimens (cylinders, 6” diameter x 12” long) shall be made for each 100 cubic yards of concrete or one day’s pour. Specimens shall be cured out of direct sunlight at jobsite or in the laboratory unless, in the opinion of the C.O.R., there is a possibility of the surrounding air temperature falling below 40 degrees F. In this case additional specimens shall be taken and cured entirely under jobsite conditions. One specimen shall be “broken” at 7 days and a second one “broken” at 28 days. The third specimen shall be “broken”, if, and when, needed.

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SECTION 1604

AUTOMATIC TRANSFER SWITCH

1. General:

a. Furnish all labor, materials, tools, equipment, and services for automatic transfer switches, as indicated and in accordance with contract documents for complete and automatic operation.

2. System Description:

a. Provide automatic transfer switches with number of poles, amperage, voltage, withstand, and close-on ratings as described and/or shown.

b. Provide interface control wiring in conduit to other equipment as required for complete and operational systems.

c. Transfer switches and controllers shall be products of same manufacturer. Transfer switches shall consist of double throw power transfer and microprocessor controller to provide automatic operation.

3. Quality Assurance:

a. UL 1008 Standard for Transfer Switch Equipment

b. IEC 947-6-1 Low-voltage switchgear and control gear

c. IEEE Standard 446 Recommended Practice for Emergency and Standby Power

d. NEMA Standard ICS10-1993

e. UL 508 Industrial Control Equipment

f. Certified to ISO 9001 International Quality Standard

4. Submittals:

a. Switches:

1. Outline drawings of assembly

2. One line diagrams and wiring diagrams for assembly and components

3. Interconnection wiring diagrams

b. Product Data:

1. Technical data on each size and type of transfer switch

2. Factory test reports

3. Letter certifying compliance with all requirements of specifications.

1604-1

c. Closeout Information:

1.Operation and maintenance data

2. Owner instruction report

3. Field test reports

5. Products:

a. Acceptable manufacturers:

1. Kohler

2. Cummins/Onan

3. Caterpillar

4. Generac

5. GE-Zenith Products ZTS

b. Service:

1. Service center's personnel must be factory trained and on call 24 hours per day, 365 days per year.

2. Manufacturer shall keep records of each switch , by serial number, for min. of 20 yrs.

c. Characteristics:

1. Electrically operated, mechanically held.

2. Switches shall be positively locked and unaffected by momentary outages

3. All transfer switch sizes shall use only one type of main operator for ease of maintenance

4. Parts which are not intended for continuous duty, repetitive switching or transfer between two active power sources are not acceptable.

5. All transfer switches serving line to neutral load(s) shall be 4 pole switches unless otherwise noted. Transfer switches serving strictly line to line load(s) shall be 3 pole switches unless otherwise noted.

6. Make all contacts and coils readily accessible for replacement from front of panel without major disassembly.

7. Provide red and green indicating lights with fuses, identification nameplates, and test switch on front to simulate normal power failure at switch.

8. Provide cable terminal lugs to accommodate conductors indicated on one line diagram.

9. Provide engine starting contacts and all other auxiliary contacts and accessory devices for functions to be performed.

10. Time delays:

a. Provide time delay on engine start, field adjustable from 0 to 6 sec, by sec, and set at 2 sec, to avoid unnecessary starting caused by short time outages.

b. Provide time delay on transfer to emergency, field adjustable from 0-60 minutes.

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c. Provide two independently adjustable time delay modes on retransfer to normal, field adjustable from 0 to 60 minutes to avoid erratic operation caused by short time reestablishment of normal source. Set time delay at 5 minutes.

d. Provide engine shut down time delay for engine generator cool down, adjustable from 0 to 60 minutes. Set at 5 minutes.

e. Provide time delay activated output signal to drive external relay(s) for selective load disconnect control.

f. All time delays shall be adjustable in 1 second increments unless otherwise indicated.

g. All time delays shall be adjustable by using LCD display and keypad or with remote device connected to serial communications port. Time delay value displayed on LCD or remote device shall be remaining time until next event occurs.

h. Provide three position momentary-type test/automatic/reset switch.

i. Provide SPDT contact, rated 5 amps at 30 VDC, for low-voltage engine start signal.

j. Provide minimum of two sets of auxiliary contacts, rated 10 amps, 250 VAC consisting of one contact, closed when transfer switch is connected to normal source and one contact closed, when automatic transfer switch is connected to emergency source.

k. Provide LED indicating lights (16 mm industrial grade, type 12) shall be provided;

one to indicate when automatic transfer switch is connected to normal source

(green) and one to indicate when automatic transfer switch is connected to emergency source (red).

l. Provide LED indicating lights energized by controller to provide true source availability of normal and emergency sources, as determined by voltage sensing trip and reset settings for each source.

d. Microprocessor Controller:

1. Sensing and logic shall be provided by single built-in microprocessor in each switch for maximum reliability, minimum maintenance, and ability to communicate serially through optional serial communication module.

2. Single controller shall provide selectable nominal voltages for maximum application flexibility and minimal spare part requirements.

3. Controller shall be connected to transfer switch by interconnecting wiring harness with keyed disconnect plug to enable controller to be disconnected from transfer switch for routine maintenance.

4. All customer connections shall be wired to common terminal block to simplify field-wiring connections.

5. Provide LCD display three to four lines, up to 20 character and keypad as part of controller for viewing all available data and setting desired operational parameters.

6. Operation:

a. Engine starting contacts shall be normally open contacts that close to start engine(s).

1604-3

b. Controller operational parameter shall be available for viewing and limited control through serial communications input port. The following parameters shall be adjustable on controller:

1. Nominal line voltage and frequency.

2. Single or three phase sensing.

3. Operating parameter protection.

4. Transfer operating mode configuration.

c. All instructions and controller settings shall be easily accessible, readable and accomplished without use of codes, calculations or instruction manuals.

d. Continuously monitor voltage and frequency on both normal and emergency sources and provide adjustable dropout and pickup setting ranges (nominal) as follows:

1. Under-voltage dropout: 70 to 98 percent of nominal voltage. (3 phase)

2. Under-voltage pickup: 85 to 100 percent of nominal voltage. (3 phase)

3. Over-voltage dropout: 102 to 115 percent of nominal voltage. (3 phase)

4. Over-voltage pickup: 2 percent below over-voltage dropout. (3 phase)

5. Under-frequency dropout: 85 to 98 percent of nominal frequency.

6. Under-frequency pickup: 90 to 100 percent of nominal frequency.

7. Over-frequency dropout: 102 to 110 percent of nominal frequency.

8. Over-frequency pickup: 2 percent below over-frequency dropout.

9. Voltage unbalance dropout: 5 to 20 percent of nominal voltage.

10. Voltage unbalance pickup: 1 percent below voltage unbalance dropout.

e. Repetitive accuracy of all settings shall be within plus or minus 0.5 percent over an operating temperature range of minus 20 degC to plus 60 degC.

f. Voltage and frequency settings shall be field adjustable in 1 percent increments either locally with display and keypad or remotely via serial communications port access.

g. Controller shall be capable (when activated by keypad or through serial port) of sensing phase rotation of both normal and emergency sources. Source shall be considered unacceptable if phase rotation is not preferred rotation selected (ABC or CBA).

h. Source status screens shall be provided for both normal and emergency to provide digital readout of voltage on all 3 phases, frequency, and phase rotation.

i. Following features shall be built into controller and shall also be capable of being activated through keypad programming or serial port when required by user:

1. Provide ability to select “commit/no commit to transfer” to determine whether load should be transferred to the emergency generator if normal source restores before generator(s) are ready to accept load.

1604-4

2. Provide in-phase monitor in controller to control transfer so that motor load inrush currents do not exceed normal starting currents and shall not require external control of power sources. In-phase monitor shall be specifically designed for and be product of automatic transfer switch manufacturer.

3. Controller shall be capable of accepting normally open contact that will allow transfer switch to function in non-automatic mode using an external control device.

4. Provide internal engine exerciser that shall allow user to program up to seven different exercise routines.

a. For each routine, user shall be able to:

1) Enable or disable routine.

2) Enable or disable transfer of load during routine.

3) Set start time:

a) Time of day.

b) Day of week.

c) Week of month (1st, 2nd, 3rd, 4th, alternate or every)

4) Set duration of run.

b. At end of specified duration switch shall transfer load back to normal and run generator(s) for specified cool down period.

c. 10-year life battery that supplies power to real time clock in event of power loss will maintain all time and date information.

j. System Status:

1. Controller LCD display shall include “System Status” screen which shall be readily accessible from any point in menu by depressing “ESC” key maximum of two times. This screen shall display clear description of active operating sequence and switch position. For example:

Normal Failed

Load on Normal

TD Normal to Emerg

2min 15s

2. Controllers that require multiple screens to determine system status or display

“coded” system status messages, which must be explained by references in operator’s manual, are not permissible.

k. Self diagnostics:

1. Controller shall contain diagnostic screen for purpose of detecting system errors.

Screen shall provide information on status input signals to controller which may be preventing load transfer commands from being completed.

l. Communications interface:

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1. Controller shall be capable of interfacing, through optional serial communication module, with network of transfer switches, locally (up to 4000 ft.) or remotely through modem serial communications.

2. Standard software specific for transfer switch applications shall be available by transfer switch manufacturer.

3. Software shall allow for monitoring, control and setup of parameters.

m. Data Logging:

1. Controller shall have ability to log data and to maintain last 99 events, even in event of total power loss. Following events shall be time and date stamped and maintained in non-volatile memory:

a. Event Logging:

1) Date, time and reason for transfer normal to emergency.

2) Date, time and reason for transfer emergency to normal.

3) Date, time and reason for engine start.

4) Date and time engine stopped.

5) Date and time emergency source available.

6) Date and time emergency source not available.

b. Statistical Data:

1) Total number of transfers.

2) Total number of transfers due to source failure.

3) Total number of days controller is energized.

4) Total number of hours both normal and emergency sources are available.

n. Communications Module:

1. Full duplex RS485 interface shall be installed in controller to enable serial communications.

2. Serial communications shall be capable of direct connect or multi-drop configured network.

3. Module shall allow for seamless integration of existing or new communication transfer devices.

7. Installation:

a. Locate automatic transfer switches at locations shown on drawings. Switches and controllers shall be installed in Type 3R enclosures.

b. Adjust relays per manufacturer's recommendations unless otherwise noted.

c. Provide and terminate all interface control wiring in conduit from automatic transfer switches to other equipment or systems as required including but not limited to:

1604-6

1. Generator control panel (engine start circuiting): Provide separate engine start circuit from each transfer switch to generator control panel.

2. Annunciator/control panels if provided.

3. Time delay signal prior to and after transfer from one source to another where indicated.

4. Building Control System

5. Label both ends of all conductors noting points of opposite termination.

8. Testing:

a. Each automatic transfer switch shall be factory tested to ensure proper operation of individual components, correct overall sequence of operation and to ensure that operating transfer time, voltage, frequency and time delay settings are in compliance with specification requirements. Document and submit report.

b. Each automatic transfer switch shall be field tested by authorized factory representative to confirm proper operation of individual components, correct overall sequence of operation and to verify that operating transfer time, voltage, frequency and time delay settings are in compliance with specification requirements. Document and submit report.

1604-7

*End of Section

DIVISION 16

SECTION 1605

ELECTRICAL SYSTEMS

1. Scope:

The work covered by this section of the specifications consists of furnishing all labor, equipment, supplies, materials, and in performing all operations necessary for installing the generators/engines and controllers, panel boards, automatic transfer switches and controllers, conductors, conduit, disconnects, electrical meters, and all other electrical components as required for complete automatic emergency generators systems for the swine buildings as shown on the drawings.

All electrical components shall be NEMA 3R rated enclosures.

2. General:

a. Rules:

The installation shall be in strict accordance with the requirements of the latest rules of the National Electrical Code and the National Fire Protection Association and as indicated on the drawings.

b. Coordination:

The drawings indicate the extent and general location and arrangement of equipment, conduit, and wiring. The contractor shall study building plans and details so that the outlets and equipment shall be properly located and readily accessible. Equipment and outlets shall be located to avoid interference with mechanical or structural features.

c. Materials and Schedules:

As soon as practical and before starting installation of any material and equipment, the contractor shall submit to the Contracting Officer’s Representative (COR) for approval, a complete list in triplicate of materials and equipment proposed for installation. This list shall include manufacturer’s names and materials equipment identification such as styles, types, catalog numbers, etc., to permit ready and complete identification. The label or listing of the Underwriters’

Laboratories, Inc. will be acceptable as evidence that the materials or equipment conform to the applicable standards of that Agency.

3. Materials and Equipment:

1605-1

a. Raceway

1. All wiring shall be installed in raceways.

2. Raceways exposed to weather, and any other area subject to damage shall be zinc-coated, rigid steel conduit.

3. Raceways for underground conductors shall be schedule 80 pvc.

4. Rigid steel conduit and steel electrical metallic tubing shall be hot dipped galvanized as manufactured by Allied Tube and Conduit Corporation, or approved equal. IMC conduit shall be as manufactured by Allied Tube and

Conduit Corporation, or approved equal.

5. No raceway smaller than 3/4” shall be used unless otherwise noted. Flexible conduit may be used where conditions warrant its use.

6. Existing conduit may be reused as approved by owner.

b. Boxes:

1. Boxes and outlets shall be hot dipped galvanized Raco or equal and shall be water tight.

2. Conduit fittings shall be as manufactured by T & B or Raco. Bushings on all conduits 1” and larger shall be the O.Z. Type “B” insulated type, with body, threads and conduit stop of malleable iron or steel, and with phenolic insulation molded on an irregular surface at the top so that it becomes an integral part of the bushing. Grounding bushings shall be the O.Z. Type “BL”.

3. Provide minimum NEC required size pull boxes unless larger box is noted.

c. Conductors:

1. Conductors shall be copper or aluminum for above ground wiring:

a. Conductor insulation shall be THHN.

b. No wire shall be smaller than #12 unless otherwise noted, except that wiring for signal and pilot control circuits may be #14. All wire shall be such that a maximum of 2% voltage drop is maintained.

c. Insulated ground wires shall be run with circuit conductors for all circuits.

1605-2

d. All conductors shall be color coded in their entirety for wire sizes where color coding is commercially available. Phase wires of different multi-wire circuits in same raceway shall be of different color to provide identification.

e. Conductors in sizes which are not commercially available in color coding shall be taped with corresponding colors at all termination points and in all pullboxes, wireways, gutters, etc. All conductors found not to conform to these requirements will be directed to be removed and replaced as specified at no additional cost for the Owner.

f. Conductors shall be continuous from outlet to outlet and no splices shall be made except within outlet or junction boxes. Junction boxes may be utilized where required. All outlet, junction and pull boxes used with rigid conduit shall be water tight.

g. Splices and taps for smaller than #6 wire shall be made with 3M Ideal, or

Buchanan twist-on insulated connectors. Connectors of the porcelain cup type, with or without metal inserts, shall not be used. Splices in wire #6 and larger, shall be made with approved solderless lugs. If any other type of connector is proposed for use in any size conductor, it shall be specifically submitted for approval prior to use.

2. Conductors shall be aluminum from panel boards to automatic transfer switches.

3. Conductors used on poles for connection to automatic transfer switches shall be of the type currently being used off of the pole transformers.

d. Disconnects: Heavy Duty Non-fusible disconnects amp as shown shall be provided at locations shown on the drawings.

e. Panel Boards: Panel boards shall be 120/208v, 3 phase except panel board for generator #3 shall be 120/240v, single phase. Enclosures shall be NEMA 3R.

Panel boards shall be I-Line circuit breaker panel boards as manufactured by

Schneider Electric, or equal.

f. Electrical meter shall be a 120/208/480 volt, three phase, 4-wire, class 200, 7 terminal multi-functional electronic meter. Meter shall be capable of providing watt-hrs, power factor, demand, per phase voltage and amperage, as a minimum, depending on how meter is programmed. Programming shall be for watt-hrs and is required prior to delivery. Meter shall be an Itron Sentinel, model

#F222011, or equal. Meter socket shall be for minimum 200 Amp service and shall be as manufactured by Durham, model #UTH7213B, or equal. It is required that submittals on this equipment are to be provided and approved prior to ordering. 1605-3

4. Excavating, Trenching, & Back-filling:

a. Excavating and Trenching:

Trenches for all underground conduit shall be excavated to the required depths.

The bottom of trenches shall be tamped hard and graded to secure the required fall. Conduit shall rest on solid ground for its entire length.

b. Back-filling:

Materials for back-filling shall consist of the excavation, or borrow of sand, gravel, or other materials approved by the Project Inspector, and shall be free of trash, lumber, or other debris. Backfill shall be placed in horizontal layers, not exceeding 9 inches in thickness, and density that will prevent excessive settlement or shrinkage. Backfill shall be brought to a suitable elevation above grade to provide for anticipated settlement and shrinkage.

5. Installation and Workmanship:

a. The installation of all electrical work…