Draft Specs.pdf

PROJECT NO. FXSB17 2815

Repair - Install arctic package generator near bldg. 7079 Lift Station FAC 11415, JOINT BASE ELMENDORF-RICHARDSON, ALASKA

SPECIFICATIONS

8 February 2021

Prepared by:

673rd Contracting Squadron JBER, Alaska 99506-2500 DRAFT

INDEX

01010-1

TABLE OF

CONTENTS

DIVISION 3 – CONCRETE

03 30 00 Cast-in-Place Concrete

DIVISION 26 – ELECTRICAL

26 07 05.00 00 Electrical Identification 26 32 14.00 10 Diesel-Generator Set 26 36 00.00 10 ATS & By-Pass/Isolation Switch

-- END OF SECTION --

DRAFT

SECTION 03 30 00

CAST-IN-PLACE CONCRETE

PART 1 - GENERAL

1. DESCRIPTION:

1.1 Work covered in this Section includes, but is not limited to:

1.1.1 All cast-in-place concrete.

2. QUALITY ASSURANCE:

2.1 American Concrete Institute (ACI) Specifications, latest edition. Concrete work shall conform to all requirements of ACI 301 Specifications for Structural Concrete for Building, except as modified by the following Supplemental Requirements.

2.2 American Society for Testing Materials Standards and Specifications as noted in ACI 301.

2.3 Concrete Reinforcing Steel Institute: CRSI Manual of Standard Practice "Monolithic Reinforced Concrete"

2.6.1 Reinforcing Bars

a. Reinforcing bars must be deformed, except spirals, load-transfer dowels, and welded wire reinforcement, which may be plain.

b. ASTM A615/A615M with the bars marked A, Grade 60; or ASTM A996/A996M with the bars marked R, Grade 60, or marked A, Grade 60.

c. Reinforcing bars may contain post-consumer or post-industrial recycled content.

d. Plain welded wire reinforcement must conform to ASTM A1064/A1064M, with welded intersections spaced no greater than 12 in. apart in direction of principal reinforcement.

3. SUBMITTALS:

3.1 Manufacturer's Literature for:

3.1.1 Admixtures.

3.2 The selection of concrete proportions shall be in accordance with ACI 301, Article 3.8. Before any concrete is placed for the Project, the Contractor shall submit to the Contracting Officer for review all necessary data showing the method used for determining the proposed concrete mix design, including fine and coarse aggregate gradations; location of all borrow pits and stockpiles to be used in concrete production; proportions of all ingredients; water-cement ratio; slump; air content; 28-day cylinder breaks and other required data for each different concrete type specified. Mix designs and strength test results must be prepared by a qualified materials testing laboratory. (See also 8.2, Durability)

3.3 All ready-mixed concrete dispatched from a batch plant must be accompanied by dispatch slip showing concrete strength, slump, additives, time of introduction of mixing water, and must be signed by plant dispatcher. Truck driver's signature will not meet this requirement.

3.4 Placement Notification: Notify Contracting Officer’s representative 24 hours in advance of each intended concrete placement, and four days prior to scheduled first concrete pour.

3.5 Provide manufacturer's written recommendation for installation of his product.

3.6 Mix design showing entrained air content, cement content, maximum water content, slump range, cement type, and the estimated compressive strength.

3.7 Field and lab test results.

3.8 Submit an anchors design and layout plan.

4. PRODUCT HANDLING:

4.1 Storage of Materials: ACI 304.

5. ENVIRONMENTAL CONDITIONS:

5.1 Cold Weather: ACI 306R. Cold weather is defined as a period when for more than consecutive days the mean daily temperatures drop below 40 F (5 C). When temperatures above 50F (10 C) occur during more than half of any 24-hour period, the concrete should no longer be regarded as winter concrete. Heating of concrete should not exceed 90 F.

5.2 Inclement Weather: Protect freshly placed concrete against damage by infiltration of any adverse weather. When damage might occur, terminate placing against nearest construction joint bulkhead and cover at once with waterproof protection until concrete has set.

5.3 Sprayed-on Protective Coatings: Apply when air temperature is between 50 F (10 C) and 80 F (27 C), relative humidity below 80 percent. Do not apply when rain is forecast within 24 hours.

5.4 Hot weather: ACI 305. work plans must include preparation to limit the temperature affects on concrete. As the selected limiting temperatures, usually but not always between 75 F to 100 F (24C to 38 C) is approached and exceeded, it is likely that the unfavorable effects of high temperature will occur.

PART 2 - PRODUCTS

6. MATERIALS:

6.1 Concrete, General:

6.1.1 Portland Cement: ASTM C 150.

6.1.2 Aggregates: ASTM C 33.

6.1.3 Water: Potable.

6.2 Admixtures:

6.2.1 Air Entrainment: ASTM C 260.

6.2.2 Chemical Admixtures: ASTM C 494.

6.2.3 Pozzolanic Admixtures: ASTM C 494.

6.3 Expansion Joints:

6.3.1 Premolded Filler Strips: ASTM D 1751.

6.4 Control Joints: Non-Staining Material, Wood, Plastic, Metal: Formed to be removed without sampling concrete.

6.5 Curing Materials:

6.5.1 Moist Curing:

6.5.1.1 Mats.

6.5.1.2 Burlap.

6.5.2 Impervious Sheet Covering:

6.5.2.1 Polyethylene Sheeting: ASTM C 171, four (4) mil minimum thickness.

Exterior: black. Interior: white or clear.

6.5.3 Liquid Membrane-Forming Compound: ASTM C 309.

7. MIXES:

7.1 Concrete Mix:

7.1.1 Strength: Strength of concrete shall be as noted or scheduled on the plans.

Concrete shall be 5000 psi concrete minimum, at 28 days.

7.1.2 Aggregate Size:ACI 211-1.

7.1.3 Proportions: ASTM C33, Table 2.

7.1.4 Cement: Five sacks per cy minimum, type I/II or type III.

7.1.5 Maximum aggregate size to be 3/4" minus for finished slabs, 3/4 of minimum clear space between steel or between steel and forms in formed concrete, and 3/8" for grouting concrete masonry.

7.1.6 Air Entrainment: 5% to 7%.

7.1.7 Slump: 2" to 4".

7.2 Job Mixed Concrete:

7.2.1 Mix only in equipment designed for concrete mixing and capable of proportioning components by weight batching.

7.2.2 Mix in power operated drum-type mixer.

7.2.3 Proportions: Same as mix design submitted under requirements of 3.2.

8. ADMIXTURES:

8.1 General:

8.1.1 Other than specified herein, or by reference, admixtures may be used only on written approval of the Contracting Officer.

8.1.2 Submit in Writing: Brand name, description, mix of concrete (including any other admixture), purpose for which used and location in which this concrete is to be placed;

for approval.

8.1.3 All admixtures shall be used in strict conformance with manufacturer's written instructions.

8.2 Durability (ACI 302, Article 3.4):

8.2.1 Air-entrained concrete shall be obtained by the use of an approved air entraining admixture only.

8.3 Calcium Chloride: Shall not be used.

8.4 Chemical Admixtures: Must receive approval by Contracting Officer.

8.5 Pozzolanic Admixtures: Must receive approval by Contracting Officer.

PART 3 - EXECUTION

9. PREPARATION:

9.1 General: ACI 318, Chapter 6.

9.2 Forms: Complete, obtain Contracting Officer's approval before placing concrete.

9.3 Concrete shall be produced in accordance with ACI 301, Chapter 7. Concrete transported by truck mixer or agitator shall be completely discharged within one and one half (1-1/2) hours (1 hour for hot weather concreting) after water has been added to the cement or cement has been added to the aggregate.

9.4 Give Contracting Officer minimum four (4) days notice prior to scheduled first concrete pour.

10. PLACING:

10.1 General: All concrete shall be placed in accordance with ACI 304.

10.2 Construction Joint: Follow ACI 318, Section 6.4, with maximum spacing between joints to be forty (40) feet for interior concrete work where not specified otherwise on the drawings. See EXPANSION & CONTRACTION JOINTS in this Section for jointing details.

10.3 Do not add water to mix after initial mixing.

10.4 Maximum slump for concrete shall be as shown in 7.1.7 above. Where field conditions require slump to exceed that shown, Contractor shall obtain written approval from the Contracting Officer who may require an adjustment to the mix.

10.5 The temperature of the concrete as placed shall not exceed 90 F without the approval of the Contracting Officer. All costs for any precautionary measures required by the Contracting Officer shall be borne by the Contractor. Cold weather concrete must meet the requirements of ACI 301 or ACI 306.1 unless otherwise specified. Do not allow concrete temperature to decrease below 50 degrees F. Obtain approval prior to placing concrete when the ambient temperature is below 40 degrees F or when concrete is likely to be subjected to freezing temperatures within 24 hours. Cover concrete and provide sufficient heat to maintain 50 degrees F minimum adjacent to both the formwork and the structure while curing. Limit the rate of cooling to 37 degrees F in any 1 hour and 50 degrees F per 24 hours after heat application.

11. TESTS:

11.1 Contractor to make a minimum of three test cylinders for each concrete compression test set.

11.2 Cylinders will be stored at job site 24 hours in a specially prepared wooden storage box before delivery to testing laboratory. Contractor to provide wooden box and a safe storage out of direct sunlight. Do not subject cylinders to freezing temperatures.

11.3 A compressive test will be taken at the rate of one test set per 20 CY with at least one test set per day of concrete placed. In any event, not less than one test for each individual pour unless requirement is waived by the Contracting Officer. Additional tests may be required by the Contracting Officer at the Contractor's expense if, in the Contracting Officer's opinion, there appears to be excessive variation in the concrete between loads or the concrete is watered or otherwise mishandled during placement.

11.3.1 Strength tests per ACI 39.

11.3.2 Air content per ASTM C 231.

11.3.3 Slump test per ASTM C 143. Slump for all concrete to conform to ACI 211.1, Table 5.3.1(c).

11.4 Within seven (7) days following date of concrete placement, Contractor shall transport test cylinders to a testing laboratory. Use care in transporting cylinders to preclude damage.

11.5 Contractor will pay for testing cylinders.

11.6 Quality of concrete to be based on average of three 28-day-old test cylinders or two 28 day old test cylinders if a 7-day break is requested by the Contracting Officer.

11.6.1 Adjust mix quantities immediately when results show strengths less than those required.

11.6.2 Test apparent problem areas in accordance with ASTM C-39.

11.6.2.1 Load tests at Contractor's expense where serious doubt exists as to quality of material.

11.6.3 All tests for and corrections of deficiencies at Contractor's expense.

11.7 Deficiencies:

11.7.1 Strength Tests: Where testing laboratory reports on breakage of cylinders shows concrete does not comply with specifications, the Contracting Officer may request further testing of concrete to determine strength of in-place concrete. Such further testing will be obtained by the Contracting Officer and the Contractor shall pay for all such further testing.

11.7.2 Air Content and Slump Tests: Make necessary corrections to bring concrete to specification requirements before placing.

11.8 Replacement Testing: If any rejected concrete is removed, the testing of concrete placed to replace the rejected material will be obtained and paid for by the Contractor.

12. FORM REMOVAL:

12.1 General: Forms shall remain in place for time recommended per ACI 347, Article 3.6.

12.2 Removal: Remove forms with care to avoid damage to concrete.

12.3 Surface defects shall be repaired in accordance with ACI 301, Chapter 9. Proprietary compounds used for adhesion or patching ingredients shall be submitted to the Contracting Officer for approval.

13. FINISHED, FORMED SURFACED:

13.1 General: Perform finishing immediately following form removal. Keep concrete damp until finishing is complete.

13.2 Patching: (Required for all Surfaces)

13.2.1 Cut honeycomb, gravel pockets and voids over 3/4-inch diameter back to solid concrete.

13.2.2 Fill prepared voids with 1:2 cement sand patching mortar.

13.2.3 Fill form tie holes with a non-shrinking patching concrete on exposed faces, patch shall match concrete wall finish.

13.2.4 Slush wetted surface to be patched with 1:1 cement sand grout.

13.2.5 Finish patch flush to and matching adjacent wall surface.

13.2.6 Curing: Damp cure patch for 7 days.

14. FINISHING, EXTERIOR SITE WORK:

14.1 Work includes thrust blocks and anchors as required by plans.

14.2 Finish to true, even lines and leave surfaces free from defects.

15. CURING:

15.1 General:

15.1.1 Concrete shall be protected from premature drying, excessive hot or cold temperature, mechanical injury, or injury from rain or flowing water for 7 days following placing (3 days for Type III cement).

15.1.2 Maintain moist condition throughout curing period.

15.1.3 Commence curing as soon as finishing is complete and moisture has disappeared from surface.

15.2 Curing: Concrete shall be maintained in a continuously moist condition for at least 7 days after placement. Curing shall begin as soon as possible after concrete has been placed and finished. Materials and methods of curing shall be submitted to the Contracting Officer for approval. Unless specific methods are specified otherwise, any of the following curing methods will be allowed:

15.2.1 Moist Curing: Cover with burlap, mats or 1-inch sand, completely cover surface, lap sheet materials 3 inches. Thoroughly saturate cover with water and keep wet.

15.2.2 Impervious Sheet Curing: Thoroughly wet surfaces with a fine water spray.

Completely cover surfaces with waterproof sheet material. Lap all edges 4 inches or more and seal with adhesive or tape. Weight to prevent displacement. Repair or replace when damaged.

15.2.3 Liquid membrane-forming compound (not permitted where hardeners are specified unless specifically required for hardening progress).

15.2.3.1 Use only upon approval of Contracting Officer.

15.2.4 Do not allow surfaces to be alternately wet and dry.

16. CLEAN-UP: Remove all forms and materials and leave project site clear of all debris.

END OF SECTION

SECTION 16075

ELECTRICAL IDENTIFICATION

16075-1

SECTION 26 07 05.00 00

PART 1 GENERAL

1.1 IDENTIFICATION

A. Provide engraved nameplates, directories, termination points schedules, color-coding, and other identification as shown on Drawings and required in Specifications.

B. Provide identification labels, methods, and materials in submittals. Provide a list of all labels proposed for this Project. All items of the system shall be identified clearly with descriptions indicating purpose, origination, termination, subsystem, and characteristics.

1.2 RELATED WORK

A. Division 15: Mechanical.

PART 2 PRODUCTS

2.1 GENERAL

A. Provide all materials for complete identification of components, equipment, wire, cable, raceways, enclosures, operators, terminations, relays, contacts, controllers, etc., as noted in the following sections.

B. All materials for nameplates and other materials shall be specifically manufactured for use as identification devices.

2.2 MATERIALS

A. Nameplates:

1. Engraved nameplates of laminated plastic with black letters on a white background shall be provided for all enclosures, cabinets, and panels. Nameplates shall identify the individual enclosure, cabinet, or panel. Sizes of nameplates and text may vary depending on application, but in no case shall letters be smaller than 1/4 inch for any engraved nameplate. Nameplates shall be made from heavy-duty laminated plastic.

2.3 ACCEPTABLE MANUFACTURERS

A. Nameplates shall be manufactured by a company regularly engaged in the production of engraved plastic labels, such as Seton or Brady.

SECTION 16075

16075-2

B. Other manufacturer's products may be acceptable if characteristics, quality, appearance, etc. match those of named manufacturers.

PART 3 EXECUTION

3.1 GENERAL

A. All new panels, main, distribution, and branch circuit panelboards, cabinets, enclosures, equipment, contactors, enclosed switches for mechanical equipment, selector switches for mechanical equipment, operators, and controllers shall be labeled with engraved plastic nameplates consisting of a minimum of 3/8 inch tall letters. Affix nameplates to enclosures with countersunk machine screws with lock washers and hexhead nuts.

B. All conductors passing through pull boxes and junction boxes shall be labeled with durable tags having clearly legible data containing appropriate representation, identifying where the conductors originate and the device or equipment served by the conductors.

C. Terminals on terminal strips shall be numbered with durable printed nameplates and typed directories with clear plastic protective covers shall be provided in terminal enclosure which identifies the origin, function, and destination of each conductor.

D. Provide engraved nameplates and other identification as shown on

Drawings and specified in other Sections of this Division.

-- END OF SECTION --

Section 26 32 14.00 10 Page 1

SECTION 26 32 14.00 10

DIESEL-GENERATOR SET, STATIONARY 15-300 KW, STANDBY APPLICATIONS

02/10

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI C39.1 (1981; R 1992) Requirements for Electrical

Analog Indicating Instruments

ASME INTERNATIONAL (ASME)

ASME B16.11 (2016) Forged Fittings, Socket-Welding and

Threaded

ASME B16.3 (2011) Malleable Iron Threaded Fittings, Classes 150 and 300

ASME B16.5 (2017) Pipe Flanges and Flanged Fittings NPS

1/2 Through NPS 24 Metric/Inch Standard

ASME B31.1 (2016; Errata 2016) Power Piping

ASME BPVC SEC IX (2010) BPVC Section IX-Welding and Brazing

Qualifications

ASME BPVC SEC VIII D1 (2015) BPVC Section VIII-Rules for

Construction of Pressure Vessels Division 1

ASSOCIATION OF EDISON ILLUMINATING COMPANIES (AEIC)

AEIC CS8 (2013) Specification for Extruded Dielectric

Shielded Power Cables Rated 5 Through 46 kV

ASTM INTERNATIONAL (ASTM)

ASTM A106/A106M (2014) Standard Specification for Seamless

Carbon Steel Pipe for High-Temperature Service

ASTM A135/A135M (2009; R2014) Standard Specification for

Electric-Resistance-Welded Steel Pipe

ASTM A181/A181M (2014) Standard Specification for Carbon

Steel Forgings, for General-Purpose Piping

Section 26 32 14.00 10 Page 2

ASTM A234/A234M (2017) Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service

ASTM A53/A53M (2012) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM B395/B395M (2013) Standard Specification for U-Bend

Seamless Copper and Copper Alloy Heat Exchanger and Condenser Tubes

ASTM D975 (2017a) Standard Specification for Diesel

Fuel Oils

ELECTRICAL GENERATING SYSTEMS ASSOCIATION (EGSA)

EGSA 101P (1995) Performance Standard for Engine Driven

Generator Sets

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 1 (2000; R 2011) General Principles for

Temperature Limits in the Rating of Electric Equipment and for the Evaluation of Electrical Insulation

IEEE 120 (1989; R 2007) Master Test Guide for

Electrical Measurements in Power Circuits

IEEE 404 (2012) Standard for Extruded and Laminated

Dielectric Shielded Cable Joints Rated 2500 V to 500,000 V

IEEE 48 (2009) Standard for Test Procedures and

Requirements for Alternating-Current Cable Terminations Used on Shielded Cables Having Laminated Insulation Rated 2.5 kV through 765 kV or Extruded Insulation Rated 2.5 kV through 500 kV

IEEE 519 (2014) Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems

IEEE 81 (2012) Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System

IEEE C2 (2017; Errata 1-2 2017; INT 1 2017) National

Electrical Safety Code

IEEE Stds Dictionary (2009) IEEE Standards Dictionary: Glossary of

Terms & Definitions

Section 26 32 14.00 10 Page 3

MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS

INDUSTRY (MSS)

MSS SP-58 (1993; Reaffirmed 2010) Pipe Hangers and

Supports - Materials, Design and Manufacture, Selection, Application, and Installation

MSS SP-80 (2013) Bronze Gate, Globe, Angle and Check

Valves

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA ICS 2 (2000; R 2005; Errata 2008) Industrial

Control and Systems Controllers, Contactors, and Overload Relays Rated 600 V

NEMA ICS 6 (1993; R 2016) Industrial Control and

Systems: Enclosures

NEMA MG 1 (2016; SUPP 2016) Motors and Generators

NEMA PB 1 (2011) Panelboards

NEMA WC 74/ICEA S-93-639 (2012) 5-46 kV Shielded Power Cable for Use in the Transmission and Distribution of Electric Energy

NEMA/ANSI C12.11 (2007) Instrument Transformers for Revenue

Metering, 10 kV BIL through 350 kV BIL (0.6 kV NSV through 69 kV NSV)

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 110 (2016) Standard for Emergency and Standby

Power Systems

NFPA 30 (2015; ERTA 1 2016) Flammable and Combustible

Liquids Code

NFPA 37 (2018) Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines

NFPA 70 (2017; ERTA 1-2 2017; TIA 17-1; TIA 17-2; TIA

17-3; TIA 17-4; TIA 17-5; TIA 17-6; TIA 17-7;

TIA 17-8; TIA 17-9; TIA 17-10; TIA 17-11; TIA

17-12; TIA 17-13; TIA 17-14) National Electrical Code

NFPA 99 (2018; TIA 18-1) Health Care Facilities Code

SOCIETY OF AUTOMOTIVE ENGINEERS INTERNATIONAL (SAE)

SAE ARP892 (1965; R 1994) DC Starter-Generator, Engine

SAE J537 (2016) Storage Batteries

Section 26 32 14.00 10 Page 4

UNDERWRITERS LABORATORIES (UL)

UL 1236 (2015; Reprint Mar 2016) UL Standard for

Safety Battery Chargers for Charging Engine- Starter Batteries

UL 489 (2016) UL Standard for Safety Molded-Case

Circuit Breakers, Molded-Case Switches and Circuit-Breaker Enclosures

UL 891 (2005; Reprint Oct 2012) Switchboards

1.2 SYSTEM DESCRIPTION

a. Provide and install one each engine-generator set complete and totally functional, with all necessary ancillary equipment to include air filtration; starting system; generator controls, protection, and isolation; instrumentation; lubrication; fuel system; cooling system;

and engine exhaust system. Each engine generator set shall satisfy the requirements specified in the Engine Generator Parameter Schedule.

Submit certification that the engine-generator set and cooling system function properly in the ambient temperatures specified.

b. Provide each engine-generator set consisting of one engine, one generator, and one exciter, mounted, assembled, and aligned on one base; and all other necessary ancillary equipment which may be mounted separately. Sets shall be assembled and attached to the base prior to shipping. Set components shall be environmentally suitable for the locations shown and shall be the manufacturer's standard product offered in catalogs for commercial or industrial use. Provide a generator strip heater for moisture control when the generator is not operating.

1.2.1 Engine-Generator Parameter Schedule

ENGINE GENERATOR PARAMETER SCHEDULE

Service Load 20 kW

Power Factor 0.8 lagging

Motor Starting kVA (maximum) 25 kVA

Maximum Speed 1800 rpm

Engine-Generator Application stand-alone

Engine Cooling Type water/ethylene glycol

Heat Exchanger Type fin-tube

Governor Type Isochronous

Frequency Bandwidth percent steady state

+ 0.25

Section 26 32 14.00 10 Page 5

ENGINE GENERATOR PARAMETER SCHEDULE

Frequency Regulation (droop) (No load to full load)

3 percent max.)

Frequency Bandwidth percent (steady state)

+ 0.25

Voltage Regulation (No load to full load)

+ 2 percent (max.)

Voltage Bandwidth (steady state) + 0.5 percent

Frequency 60 Hz

Voltage 208/120 volts

Phases Design Build Contractor to confirm it is 3 Phase Wye, or 3 Phase Delta

Minimum Generator Reactance 12 percent Subtransient

Nonlinear Loads 25 kVA

Max Step Load Increase 100 percent of Service Load at 0.8 PF

Max Step Load Decrease (w/o shutdown) 100 percent of Service Load at 0.8 PF

Max Time to Start and be Ready to Assume Load

10 seconds

Max Summer Indoor Temp (Prior to Genset Operation)

105 degrees F

Min Winter Indoor Temp (Prior to Genset Operation)

40 degrees F

Min Winter Indoor Temp 40 degrees F

Max Allowable Heat Transferred To Engine Generator Space at Rated Output Capacity

Per manufacturer recommendation MBTUH/hr

Max Summer Outdoor Temp (Ambient) 95 degrees F

Min Winter Outdoor Temp (Ambient) -30 degrees F

Installation Elevation 100 above sea level

Section 26 32 14.00 10 Page 6

1.2.2 Output Capacity

Provide each generator set with power equal to the sum of service load plus the machine's efficiency loss and associated ancillary equipment loads.

Rated output capacity shall also consider engine and/or generator oversizing required to meet requirements in paragraph Engine-Generator Parameter Schedule.

1.2.3 Power Rating

Standby ratings shall be in accordance with EGSA 101P.

1.2.4 Engine Generator Set Enclosure

The engine generator set enclosure shall be corrosion resistant, fully weather resistant, contain all set components, and provide ventilation to permit operation at rated load under secured conditions. Provide doors for access to all controls and equipment requiring periodic maintenance or adjustment. Provide removable panels for access to components requiring periodic replacement. The enclosure shall be capable of being removed without disassembly of the engine-generator set or removal of components other than exhaust system. The enclosure shall reduce the noise of the generator set to within the limits specified in the paragraph SOUND

LIMITATIONS.

1.2.5 Vibration Isolation

1.2.5.1 Vibration Limitations

The maximum engine-generator set vibration in the horizontal, vertical and axial directions shall be limited to 6 mils (peak-peak RMS), with an overall velocity limit of 0.95 inches/seconds RMS, for all speeds through 110 percent of rated speed. The engine-generator set shall be provided with vibration-isolation in accordance with the manufacturer's standard recommendation. Where the vibration-isolation system does not secure the base to the structure floor or unit foundation, provide seismic restraints in accordance with the seismic parameters specified.

1.2.5.2 Torsional Analysis

Submit torsional analysis including prototype testing or calculations which certify and demonstrate that no damaging or dangerous torsional vibrations will occur when the prime mover is connected to the generator, at synchronous speeds, plus/minus 10 percent.

1.2.5.3 Performance Data

Submit vibration isolation system performance data for the range of frequencies generated by the engine-generator set during operation from no load to full load and the maximum vibration transmitted to the floor. Also submit a description of seismic qualification of the engine-generator mounting, base, and vibration isolation.

1.2.6 Reliability and Durability

Submit documentation which cites engines and generators in similar service to demonstrate compliance with the requirements of this specification.

Section 26 32 14.00 10 Page 7

Certification does not exclude annual technological improvements made by a manufacturer in the basic standard model set on which experience was obtained, provided parts interchangeability has not been substantially affected and the current standard model meets all the performance requirements of this specification. For each different set, 2 like sets shall have performed satisfactorily in a stationary power application, independent and separate from the physical location of the manufacturer's and assembler's facilities, for a minimum of 2 consecutive years without any failure to start, including periodic exercise. The certification shall state that for the set proposed to meet this specification, there were no failures resulting in downtime for repairs in excess of 72 hours or any failure due to overheating during 2 consecutive years of service. Like sets are of the same model, speed, bore, stroke, number and configuration of cylinders, and output power rating. Like generators are of the same model, speed, pitch, cooling, exciter, voltage regulator and output power rating.

A list shall be provided with the name of the installations, completion dates, and name and telephone number of a point of contact.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. PROCEDURES:

SD-02 Shop Drawings

Detailed Drawings; G Acceptance; G

SD-03 Product Data

Manufacturer's Catalog Instructions; G Experience Field Engineer Site Welding General Installation Site Visit

SD-05 Design Data

Sound Limitations; G Generator Integral Main Fuel Storage Tank Day Tank Power Factor Heat Exchanger Time-Delay on Alarms Cooling System Vibration Isolation

SD-06 Test Reports

Performance Tests Onsite Inspection and Tests; G

SD-07 Certificates

Section 26 32 14.00 10 Page 8

Vibration Isolation Prototype Tests Reliability and Durability Emissions Sound limitations Current Balance Materials and Equipment Factory Inspection and Tests Inspections Cooling System

SD-10 Operation and Maintenance Data

Operation Manual; G Maintenance Manual; G Extra Materials

1.4 QUALITY ASSURANCE

1.4.1 Conformance to Codes and Standards

Where equipment is specified to conform to requirements of any code or standard such as UL, the design, fabrication and installation shall conform to the code.

1.4.2 Site Welding

Weld structural members in accordance with Section 05 05 23.16 STRUCTURAL WELDING located in the UFC Unified Facility Criteria, refer to JBER Policies. For all other welding, qualify procedures and welders in accordance with ASME BPVC SEC IX.

a. Welding procedures qualified by others, and welders and welding operators qualified by a previously qualified employer may be accepted as permitted by ASME B31.1.

b. Welder qualification tests shall be performed for each welder whose qualifications are not in compliance with the referenced standards.

Notify the Contracting Officer 24 hours in advance of qualification tests. The qualification tests shall be performed at the work site if practical.

c. The welder or welding operator shall apply the assigned personal symbol near each weld made as a permanent record

d. Submit a letter listing the welder qualifying procedures for each welder, complete with supporting data such as test procedures used, what was tested to, and a list of the names of all welders and their qualifications symbols.

1.4.3 Experience

Each component manufacturer shall have a minimum of 3 years experience in the manufacture, assembly and sale of components used with stationary diesel engine-generator sets for commercial and industrial use. The engine-generator set manufacture/assembler shall have a minimum of 3 years

Section 26 32 14.00 10 Page 9 experience in the manufacture, assembly and sale of stationary diesel engine-generator sets for commercial and industrial use. Submit a statement showing and verifying these requirements.

1.4.4 Field Engineer

The engine-generator set manufacturer or assembler shall furnish a qualified field engineer to supervise the complete installation of the engine-generator set, assist in the performance of the onsite tests, and instruct personnel as to the operational and maintenance features of the equipment.

The field engineer shall have attended the engine-generator manufacturer's training courses on installation and operation and maintenance for engine generator sets. Submit a letter listing the qualifications, schools, formal training, and experience of the field engineer.

1.4.5 Seismic Requirements

Seismic requirements shall be in accordance with UFC 3-310-04.

1.4.6 Detailed Drawings

Submit detailed drawings showing the following:

a. Base-mounted equipment, complete with base and attachments including anchor bolt template and recommended clearances for maintenance and operation.

b. Starting system.

c. Fuel system.

d. Cooling system.

e. Exhaust system.

f. Electric wiring of relays, breakers, programmable controllers, and switches including single line and wiring diagrams.

g. Lubrication system, including piping, pumps, strainers, filters, electric heater, controls and wiring.

h. Location, type, and description of vibration isolation devices.

i. The safety system, including wiring schematics.

j. One-line schematic and wiring diagrams of the generator, exciter, regulator, governor, and all instrumentation.

k. Panel layouts.

l. Mounting and support for each panel and major piece of electrical equipment.

m. Engine-generator set rigging points and lifting instructions.

1.5 DELIVERY, STORAGE AND HANDLING

Section 26 32 14.00 10 Page 10

Properly protect materials and equipment in accordance with the manufacturers recommended storage procedures, before, during, and after installation. Protect stored items from the weather and contamination.

During installation, piping and similar openings shall be capped to keep out dirt and other foreign matter.

1.6 MAINTENANCE SERVICE

Submit the operation and maintenance manuals and have them approved prior to commencing onsite tests.

1.6.1 Operation Manual

Provide three copies of the manufacturer’s standard operation manual.

Sections shall be separated by heavy plastic dividers with tabs which identify the material in the section. Drawings shall be folded blue lines, with the title block visible, and placed in 8-1/2 by 11 inch plastic pockets with reinforced holes. The manual shall include:

a. Step-by-step procedures for system startup, operation, and shutdown;

b. Drawings, diagrams, and single-line schematics to illustrate and define the electrical, mechanical, and hydraulic systems with their controls, alarms, and safety systems;

c. Procedures for interface and interaction with related systems to include automatic transfer switches fire alarm/suppression systems .

1.6.2 Maintenance Manual

Provide three copies of the manufacturer’s standard maintenance manual.

Each section shall be separated by a heavy plastic divider with tabs.

Drawings shall be folded, with the title block visible, and placed in plastic pockets with reinforced holes. The manual shall include:

a. Procedures for each routine maintenance item. Procedures for troubleshooting. Factory-service, take-down overhaul, and repair service manuals, with parts lists.

b. The manufacturer's recommended maintenance schedule.

c. A component list which includes the manufacturer's name, address, type or style, model or serial number, rating, and catalog number for the major components listed in paragraph GENERAL REQUIREMENTS.

d. A list of spare parts for each piece of equipment and a complete list of materials and supplies needed for operation.

1.6.3 Extra Materials

Provide two sets of special tools and two sets of filters required for maintenance. Special tools are those that only the manufacturer provides, for special purposes, or to reach otherwise inaccessible parts. One handset shall be provided for each electronic governor when required to indicate and/or change governor response settings. Supply two complete sets of filters in a suitable storage box in addition to filters replaced after testing.

Section 26 32 14.00 10 Page 11

PART 2 PRODUCTS

2.1 NAMEPLATES

Each major component of this specification shall have the manufacturer's name, type or style, model or serial number, and rating number on a plate secured to the equipment. As a minimum, nameplates shall be provided for:

Engines; Relays; Generators; Day tanks; Transformers (CT & PT); Regulators;

Pumps and pump motors; Governors; Generator Breaker; Economizers; Heat exchangers (other than base-mounted).

Where the following equipment is provided as a standard component by the diesel-engine generator set manufacturer, the nameplate information may be provided in the maintenance manual in lieu of nameplates.

Battery charger Heaters Exhaust mufflers Exciters Switchgear Silencers Battery

2.2 SAFETY DEVICES

Exposed moving parts, parts that produce high operating temperatures, parts which may be electrically energized, and parts that may be a hazard to operating personnel during normal operation shall be insulated, fully enclosed, guarded, or fitted with other types of safety devices. The safety devices shall be installed so that proper operation of the equipment is not impaired.

2.3 MATERIALS AND EQUIPMENT

Materials and equipment shall be as specified. Submit a letter certifying that where materials or equipment are specified to comply with requirements of UL, or other standards, written proof of such compliance has been obtained. The label or listing of the specified agency, or a written certificate from an approved, nationally recognized testing organization equipped to perform such services, stating that the items have been tested and conform to the requirements and testing methods of the specified agency are acceptable as proof.

2.3.1 Circuit Breakers, Low Voltage

UL 489 and UL 489.

2.3.2 Filter Elements (Fuel-oil, Lubricating-oil, and Combustion-air)

Manufacturer's standard.

2.3.3 Instrument Transformers

NEMA/ANSI C12.11.

2.3.4 Pipe (Fuel/Lube-oil, Compressed-Air, Coolant and Exhaust)

Section 26 32 14.00 10 Page 12

ASTM A53/A53M, ASTM A106/A106M or ASTM A135/A135M, steel pipe. Pipe smaller than 2 inches shall be Schedule 80. Pipe 2 inches and larger shall be Schedule 40.

2.3.5 Pipe Flanges and Fittings

2.3.5.1 Pipe Flanges and Flanged Fittings

ASTM A181/A181M, Class 60, or ASME B16.5, Grade 1, Class 150.

2.3.5.2 Pipe Welding Fittings

ASTM A234/A234M, Grade WPB or WPC, Class 150, or ASME B16.11, 3000 lb.

2.3.5.3 Threaded Fittings

ASME B16.3, Class 150.

2.3.5.4 Valves

MSS SP-80, Class 150.

2.3.5.5 Gaskets

Manufacturers Standard.

2.3.6 Pipe Hangers

MSS SP-58.

2.3.7 Electrical Enclosures

2.3.7.1 General

NEMA ICS 6.

2.3.7.2 Panelboards

NEMA PB 1.

2.3.8 Electric Motors

Electric motors shall conform to the requirements of NEMA MG 1. Motors shall have sealed ball bearings, a maximum speed of 1800 rpm and integral automatic or manual reset thermal overload protectors. Motors used indoors shall have drip proof frames; those used outside shall be totally enclosed.

AC motors larger than 1/2 Hp shall be of the squirrel cage induction type for standard voltage of 208 volts, 60 Hz three phase power. AC motors 1/2 Hp or smaller, shall be for standard voltage 115 volts, 60 Hz, single phase power.

2.3.9 Motor Controllers

Motor controllers and starters shall conform to the requirements of NFPA 70 and NEMA ICS 2.

Section 26 32 14.00 10 Page 13

2.4 ENGINE

Each engine shall operate on No. DF-2 fuel (ULSD), conforming to ASTM D975, shall be designed for stationary applications and shall be complete with ancillaries. The engine shall be a standard production model described in the manufacturer's catalog data, which describes and depicts each engine-generator set and all ancillary equipment in sufficient detail to demonstrate specification compliance. The engine shall be naturally aspirated, scavenged, supercharged or turbocharged. The engine shall be two- or four-stroke-cycle and compression-ignition type. The engine shall be vertical inline, V-, or opposed-piston type, with a solid cast block or individually cast cylinders. The engine shall have a minimum of two cylinders. Opposed-piston type engines shall have no less than four cylinders. Each block shall have a coolant drain port. Each engine shall be equipped with an overspeed sensor.

2.5 FUEL SYSTEM

The fuel system for each engine generator set shall conform to the requirements of NFPA 30 and NFPA 37 and contain the following elements.

2.5.1 Pumps

2.5.1.1 Main Pump

Each engine shall be provided with an engine driven pump. The pump shall supply fuel at a minimum rate sufficient to provide the amount of fuel required to meet the performance indicated within the parameter schedule.

The fuel flow rate shall be based on meeting the load requirements and all necessary recirculation.

2.5.1.2 Auxiliary Fuel Pump

Auxiliary fuel pumps shall be provided to maintain the required engine fuel pressure, either required by the installation or indicated on the drawings.

The auxiliary pump shall be driven by a dc electric motor powered by the starting/station batteries. The auxiliary pump shall be automatically actuated by a pressure detecting device.

2.5.2 Filter

A minimum of one full flow fuel filter shall be provided for each engine.

The filter shall be readily accessible and capable of being changed without disconnecting the piping or disturbing other components. The filter shall have inlet and outlet connections plainly marked.

2.5.3 Relief/Bypass Valve

A relief/bypass valve shall be provided to regulate pressure in the fuel supply line, return excess fuel to a return line, and prevent the build-up of excessive pressure in the fuel system.

2.5.4 Integral Main Fuel Storage Tank

N/A

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2.5.4.1 Capacity

2.5.4.2 N/A

2.5.4.3 Fuel Level Controls

N/A

2.5.4.4 Arrangement

2.5.5 Day Tank

Provide each engine with integral day tank. Each engine-generator set provided with weatherproof enclosures shall have its day tank mounted within the enclosure. The fuel fill line shall be accessible without opening the enclosure.

2.5.5.1 Capacity, Standby

Day tank shall have capacity to supply fuel to the engine for an uninterrupted 72 hours period at 100 percent rated load without being refilled.

2.5.5.2 Drain Line

Each day tank drain line shall be accessible and equipped with a shutoff valve. Self supporting day tanks shall be arranged to allow drainage into a 12 inch tall bucket.

2.5.5.3 Local Fuel Fill

Provide each local fuel fill port on the day tank with a screw-on cap.

2.5.5.4 Fuel Level Controls

Each day tank shall have a float-switch-assembly to perform the following functions:

a. when the fuel level is at the "Low" level mark, 75 of the rated tank capacity.

b. when the fuel level is at 90 percent of the rated tank capacity.

c. Activate the "Overfill Fuel Level" alarm at 95 percent of the rated tank volume.

d. Activate the "Low Fuel Level" alarm at 70 percent of the rated tank Capacity.

e. Activate the automatic fuel supply shut-off valve located on the fill line of the day tank and shut down the fuel pump which supplies fuel to the day tank at 95 percent of the rated tank volume. The flow of fuel shall be stopped before any fuel can be forced into the fuel overflow line.

Section 26 32 14.00 10 Page 15

2.5.5.5 Arrangement

Integral day tanks may allow gravity flow into the engine. Gravity flow tanks shall be provided with an internal or external valve located as near as possible to the shell of the tank. The valve shall close when the engine is not operating. Integral day tanks shall be provided with any necessary pumps to supply fuel to the engine as recommended by the generator set manufacturer. The overflow connection and the fuel supply line for integral day tanks which do not rely upon gravity flow shall be arranged so that the highest possible fuel level is below the fuel injectors. The fuel supply line from the day tank to the manufacturer's standard engine connection shall be welded pipe.

2.6 LUBRICATION

Each engine shall have a separate lube-oil system conforming to NFPA 30 and NFPA 37. Each system shall be pressurized by engine-driven oil pumps. Each system shall be furnished with a relief valve for oil pressure regulation (for closed systems) and a dip-stick for oil level indications. The crankcase shall be vented in accordance with the manufacturer's recommendation except that it shall not be vented to the engine exhaust system. Crankcase breathers, if provided on engines installed in buildings or enclosures, shall be piped to vent to the outside. The system shall be readily accessible for service such as draining, refilling, etc. Each system shall permit addition of oil and have oil-level indication with the set operating. The system shall utilize an oil cooler as recommended by the engine manufacturer.

2.6.1 Filter

One full-flow filter shall be provided for each pump. The filter shall be readily accessible and capable of being changed without disconnecting the piping or disturbing other components. The filter shall have inlet and outlet connections plainly marked.

2.6.2 Lube-Oil Sensors

Each engine shall be equipped with lube-oil pressure sensors. Pressure sensors shall be located downstream of the filters and provide signals for required indication and alarms.

2.7 COOLING SYSTEM

Each engine cooling system shall operate automatically while the engine is running. Each cooling system shall be sized for the maximum summer outdoor design temperature and site elevation. Water-cooled system coolant shall use a combination of water and ethylene-glycol sufficient for freeze protection at the minimum winter outdoor temperature specified. The maximum temperature rise of the coolant across the engine shall be no more than that recommended and submitted.

a. The maximum and minimum allowable inlet temperatures of the coolant fluid.

Section 26 32 14.00 10 Page 16

b. The maximum allowable temperature rise in the coolant fluid through the engine.

c. The minimum allowable inlet fuel temperature.

2.7.1 Coolant Pumps

Coolant pumps shall be the centrifugal type. Each engine shall have an engine-driven primary pump. Secondary pumps shall be electric motor driven and have automatic controllers.

2.7.2 Heat Exchanger

Each heat exchanger shall be of a size and capacity to limit the maximum allowable temperature rise in the coolant across the engine to that recommended and submitted in accordance with paragraph SUBMITTALS for the maximum summer outdoor design temperature and site elevation. Each heat exchanger shall be corrosion resistant, suitable for service in ambient conditions of application. Submit manufacturers data to quantify heat rejected to the space with the engine generator set at rated capacity.

2.7.2.1 Fin-Tube-Type Heat Exchanger (Radiator)

Heat exchanger may be factory coated with corrosive resistant film providing that corrosion measures are taken to restore the heat rejection capability of the radiator to the initial design requirement via oversizing, or other compensating methods. Internal surfaces shall be compatible with liquid fluid coolant used. Materials and coolant are subject to approval by the Contracting Officer. Heat exchangers shall be pressure type incorporating a pressure valve, vacuum valve and a cap. Caps shall be designed for pressure relief prior to removal. Each heat exchanger and the entire cooling system shall be capable of withstanding a minimum pressure of 7 psi. Each heat exchanger shall be protected with a strong grille or screen guard. Each heat exchanger shall have at least two tapped holes. One tapped hole in the heat exchanger shall be equipped with a drain cock, the rest shall be plugged.

2.7.2.2 Shell and U-Tube Type Heat Exchanger

Heat exchanger shall be multiple pass shell and U-tube type. Exchanger shall operate with low temperature water in the shell and high temperature water in the tubes. Exchangers shall be constructed in accordance with ASME BPVC SEC VIII D1 and certified ASME stamp secured to the unit. U-tube bundles shall be completely removable for cleaning and tube replacement and shall be free to expand with the shell. Shells shall be constructed of seamless steel pipe or welded steel. Tubes shall be cupronickel or inhibited admiralty, constructed in accordance with ASTM B395/B395M, suitable for the temperature and pressure specified. Tubes shall be not less than 3/4 inch unless otherwise indicated. Shell side and tube side shall be designed for 150 psi working pressure and factory tested at 300 psi. High and low temperature water and pressure relief connections shall be located in accordance with the manufacturers standard practice. Water connections larger than 3 inches shall be ASME Class 150 flanged. Water pressure loss through clean tubes shall be as recommended by the engine manufacturer. Minimum water velocity through tubes shall be 1 foot per second and assure turbulent flow. One or more pressure relief valves shall be provided for each heat exchanger in accordance with ASME BPVC SEC VIII D1. The aggregate relieving capacity of the relief valves shall be not less

Section 26 32 14.00 10 Page 17 than that required by the above code. Discharge from the valves shall be installed as indicated. The relief valves shall be installed on the heat exchanger shell. A drain connection with 3/4 inch hose bib shall be installed at the lowest point in the system near the heat exchanger.

Additional drain connection with threaded cap or plug shall be installed wherever required for thorough draining of the system.

2.7.3 Expansion Tank

The cooling system shall include an air expansion tank which will accommodate the expanded water of the system generated within the normal operating temperature range, limiting the pressure increase at all components in the system to the maximum allowable pressure at those components. The tank shall be suitable for an operating temperature of 250 degrees F and a working pressure of 125 psi. The tank shall be constructed of welded steel, tested and stamped in accordance with ASME BPVC SEC VIII D1 for the stated working pressure. A bladder type tank shall not be used.

The tank shall be supported by steel legs or bases for vertical installation or steel saddles for horizontal installation.

2.7.4 Ductwork

Ductwork shall be as specified except that a flexible connection shall be used to connect the duct to the diesel engine radiator. Material for the connection shall be wire-reinforced glass. The connection shall be rendered practically airtight.

2.7.5 Temperature Sensors

Each engine shall be equipped with coolant temperature sensors. Temperature sensors shall provide signals for pre-high and high indication and alarms.

2.8 SOUND LIMITATIONS

The noise generated by the diesel generator set operating at 100 percent load shall not exceed the following sound pressure levels in any of the indicated frequencies when measured in a free field at a radial distance of 22.9 feet at 45 degrees apart in all directions.

Submit data to demonstrate compliance with these sound limitation requirements.

The designer should consider sound within the equipment room, adjacent areas and building exterior. As a minimum the design should comply with the following OSHA safety requirements.

Frequency Band (Hz) Maximum Acceptable Sound Level (Decibels)

Industrial Acceptable Tested Pressure Level (Decibels) 20-75 87 75-150 77 150-300 70 300-600 64 600-1,200 61 1,200-2,400 60 2,400-4,800 60 4,800-10…