Attachment 2-ShakeCreekGenSpecsFinal.03.13.2023.pdf

SECTION C - DESCRIPTION/SPECIFICATIONS/STATEMENT OF WORK 000001-1

Section C - Description/Specifications/Statement of Work

GENERAL SPECIFICATIONS

SHAKE CREEK GENERATOR REPLACEMENT

Final – 3/13/2023

1.1 SCOPE OF CONTRACT

A. This project includes removal and replacement of the generator at the Shake Creek Administration Site.

B. The work includes:

1. Removal and disposal of the existing generator.

2. Installation of replacement generator.

3. Installation of new controls and battery charging circuitry.

1.2 PROJECT LOCATION

A. The project is located in the Fairfield Ranger District of the Sawtooth National Forest, Elmore County, Idaho, at latitude 43° 36' 57.4" north and longitude 115° 09' 50.2" west.

It is located approximately 55 miles northwest of Fairfield, Idaho or approximately 66 miles northeast of Mountain Home, Idaho. The project may be accessed from US Highway 20 and Forest Road 61, see drawings cover sheet for complete directions.

1.3 SITE INFORMATION AND LIMITATIONS

A. The following site conditions are considered incidental to the contract and the contractor will not be paid directly for any of the following items:

1. Construction sites will be closed to the public during construction.

2. All construction equipment shall be pressure washed before entering National

Forest System lands. The removal of mud and debris from treads, tracks and undercarriage, with emphasis on axles, frame, cross-members, motor mounts, and underneath steps, running boards, and front bumper/brushguard assemblies will be required. The purpose is to reduce or eliminate the transportation of noxious weeds, which is required by Federal and State regulations.

3. Utilities are not available at the site for construction purposes.

1.4 WORK CAMPS, STAGING AND STORAGE AREAS

A. Areas for staging operations and storage of materials shall be approved by the CO. The Contractor must request in writing for approval from the CO to stage trailers (work) on site.

B. No overnight camping will be allowed on site.

Attachment 2-1240LT23Q0038

SECTION C - DESCRIPTION/SPECIFICATIONS/STATEMENT OF WORK 000001-2

1.5 INSPECTION OF WORKSITE

A. The contractor acknowledges they have taken the necessary steps to ascertain the nature and location of work and have investigated and satisfied themselves as to the general and local conditions that can affect the work or its cost. Any failure of the contractor to take the actions described and acknowledged in this paragraph will not relieve the Contractor from the responsibility of estimating properly the difficulty and cost of successfully performing the work, or for proceeding to successfully perform the work without additional expenses to the government.

1.6 START DATE

A. *

1.7 CONTRACT TIME

A. 90 Calendar Days

1.8 SPECIFICATIONS

A. The following specifications are attached. Some sections in the schedule of items refer to other sections not listed and are subsidiary to or are included in payment for other pay items in this contract. These items are considered incidental, and no additional compensation will be made.

SECTION 260000 - COMMON WORK RESULTS FOR ELECTRICAL

SECTION 260519 - LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND

CABLES

SECTION 260533.13 - CONDUITS FOR ELECTRICAL SYSTEMS

SECTION 260553 - IDENTIFICATION FOR ELECTRICAL SYSTEMS

SECTION 263213.16 - GAS-ENGINE-DRIVEN GENERATOR SETS

END OF SECTION C

April 2023

COMMON WORK RESULTS FOR ELECTRICAL 260000-1

USDA FOREST SERVICE, R4

SHAKE CREEK GENERATOR REPLACEMENT

SECTION 260000 - COMMON WORK RESULTS FOR ELECTRICAL

PART 1 - GENERAL

1.1 SUMMARY

A. This Section specifies supplemental requirements generally applicable to the Work specified in Division 26. This Section is also referenced by related Work specified in other Divisions.

B. Section Includes:

1. Electrical Submittals

2. Measurement and Payment

3. Electrical equipment coordination and installation.

4. Common electrical installation requirements.

5. Grounding for existing photovoltaic (PV) module. (Site specific.)

1.2 REFERENCES

A. Abbreviations and Acronyms for Electrical Terms and Units of Measure:

1. A: Ampere, unit of electrical current.

2. AC or ac: Alternating current.

3. AWG: American wire gauge; see ASTM B258.

4. CU or Cu: Copper.

5. DC or dc: Direct current.

6. ft: Foot.

7. GND: Ground.

8. kW: Kilowatt.

9. kWh: Kilowatt-hour.

10. LCD: Liquid-crystal display.

11. LED: Light-emitting diode.

12. LP-Gas: Liquefied petroleum gas.

13. m: Meter.

14. NC: Normally closed.

15. NO: Normally open.

16. OCPD: Overcurrent protective device.

17. PF or pf: Power factor.

18. PV: Photovoltaic.

19. PVC: Polyvinyl chloride.

20. RPM or rpm: Revolutions per minute.

21. TEFC: Totally enclosed fan-cooled.

22. UL: (standards) Underwriters Laboratories, Inc.; (product categories) UL, LLC.

23. UL CCN: UL Category Control Number.

24. V: Volt, unit of electromotive force.

COMMON WORK RESULTS FOR ELECTRICAL 260000-2

25. V(ac): Volt, alternating current.

26. V(dc): Volt, direct current.

27. VA: Volt-ampere, unit of complex electrical power.

28. VRLA: Valve regulated lead acid; also called "sealed lead acid (SLA)" or "valve regulated sealed lead acid."

29. W: Watt, unit of real electrical power.

30. Wh: Watt-hour, unit of electrical energy usage.

1.3 QUALITY ASSURANCE

A. The installation shall conform to the latest edition (based on published year) of the National Electrical Code (NFPA 70) and to the requirements specified herein.

1. When conflicting with locally adopted electrical code, the most stringent shall apply.

B. The Contractor shall perform all work necessary and required to accomplish the task as detailed on the drawings and discussed in the installation notes. All work shall be done by a state licensed electrician.

C. Electrical equipment, general: Listed and labeled in accordance with NFPA 70, by qualified electrical testing laboratory recognized by authorities having jurisdiction, and marked for intended location and application.

1.4 SUBMITTALS

A. Product Data:

1. For any substitutions for equipment referred to by name in Division 26 specifications or the drawings submitted and approved before installation. See Article 2.1.

a. Proposed substitutions shall clearly indicate “Proposed Substitution #” and include the cutsheet for the item the proposed and the item it would replace labeled “For #.”

1) “#” indicates a unique number assigned to the substitution and the original item called for.

b. Also indicate purpose for each products submittal:

1) Or-Equal: Products deemed equal or better than the equipment or product listed. Considered requests for substitutions for convenience and require

2) Unavailable, or, Lead Time:

a) Unavailable: The listed product called for is no longer manufactured.

b) Lead Time: Because listed equipment significantly impacts construction schedule because of lead time.

COMMON WORK RESULTS FOR ELECTRICAL 260000-3

c) Contractor must declare the possibility as soon as possible to permit establishing a mitigation plan for minimizing risks to system performance and construction schedule.

3) As Called For: Submittals for equipment and products as called are not required unless noted for submittal in the related Section, or, submitted as part of the O&M Manual(s). These may not be reviewed by the Government.

2. Submittals for general common items such as for conduit, fittings, conductors and cables, connectors, etc. not called out by part number and manufacturer, are typically not required unless otherwise noted in the corresponding specification section.

a. Country of origin may be an issue which may be cause for rejection of some materials.

B. Operation and Maintenance Data:

1. Compile and submit based on this and other sections in Divisions 26, 27, and 28.

1.5 MEASUREMENT AND PAYMENT

A. The work in this section, including all incidentals in other electrical sections, shall be measured and paid for by the following method(s) as shown in the Schedule of Items:

1. Electrical Generator Replacement Complete - Lump Sum including full compensation for all labor, materials, and incidentals necessary to complete the work as shown on the drawings including all other incidentals necessary for a functional system.

PART 2 - PRODUCTS

2.1 PRODUCTS REFERRED TO BY NAME

A. The materials referred to by trade name, make, or catalog number on the drawings shall be regarded as establishing a minimum standard of quality; substitutions of equal or greater quality can be made by submitting a data sheet of the proposed substituted item to the Contracting Officer, for approval.

2.2 METHODS REFERENCED IN OTHER SECTIONS

A. General methods referenced in other Division 26, 27, and 28 sections indicate products and methods that are allowed for use during this project, including incidentals (fittings, connectors, etc).

1. Where the use of an alternative method is desired, the alternative method may be requested by submitting data sheets or description of the proposed method to the Contracting Officer, for approval, before installation. Include where the proposed product is requested for, how, and why.

COMMON WORK RESULTS FOR ELECTRICAL 260000-4

2. Alternative methods may also be proposed, however, these sections are to be regarded as establishing a minimum standard of quality where they exceed code and typical industry standards and may be rejected.

B. Unapproved alternative products and methods may be subject to removal and replacement with approved products and methods at the contractors’ expense.

PART 3 - EXECUTION

3.1 EXAMINATION

A. The contractor shall familiarize themselves with the project, requirements, and actual site conditions. Coordinate installation and routing with other trades.

3.2 INSTALLATION OF ELECTRICAL WORK

A. Unless more stringent requirements are specified in the Contract Documents or manufacturers' written instructions, comply with NFPA 70 and NECA NEIS 1 for installation of Work specified in Division 26. Consult Architect for resolution of conflicting requirements.

B. Treat entire system as if outdoors, wet location.

C. Measure indicated mounting heights to bottom of unit for suspended items and to center of unit for wall-mounting items, unless otherwise directed.

D. Headroom Maintenance: If mounting heights or other location criteria are not indicated, arrange and install components and equipment to provide maximum possible headroom consistent with these requirements.

E. Equipment: Install to facilitate service, maintenance, and repair or replacement of components of both electrical equipment and other nearby installations. Connect in such a way as to facilitate future disconnecting with minimum interference with other items in the vicinity.

F. Right of Way: Give to piping systems installed at a required slope.

3.3 GROUNDING FOR EXISTING PHOTOVOLTAIC (PV) MODULE

A. Grounding lug shall be listed to UL 2703 for the penetration of the anodized or oxidized aluminum of the modules frame (assumed). The following products may work but need to be verified with the module:

1. Brundy WEBL-6.7.

2. ILSCO SGB-4.

B. Install, separate from existing, listed bolted ground connector at the grounding electrode (ground rod).

C. Verify where the module is installed on the site and route grounding electrode conductor along shortest and straightest paths possible unless otherwise indicated or required by

COMMON WORK RESULTS FOR ELECTRICAL 260000-5

Code. Avoid obstructing access or placing conductors where they may be subjected to strain, impact, or damage.

1. Bonding to metal roof not required.

D. Though not called out as an acceptable duct raceway in section 260533.13, Type PVC duct raceway used as a sleeve for the grounding electrode conductor to the PV module is allowed. If existing, it may also be routed through an existing conduit circuit to the PV module when there is adequate room.

3.4 BOXES AND ENCLOSURES

A. Boxes and enclosures shall be installed meeting wet location requirements, such as being NEMA 3R or other appropriate rating.

3.5 CLOSEOUT ACTIVITIES

A. Operation and Maintenance Data: Prepare and submit the following:

1. Provide operation and preventive maintenance manuals for the generator.

B. Demonstration: Demonstrate to Owner's maintenance and engineering personnel how to operate the following systems and equipment:

1. How to adjust, operate, and maintain equipment specified in Section 263213.16 "Gas-Engine-Driven Generator Sets."

END OF SECTION 260000

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 260519-1

SHAKE CREEK GENERATOR REPLACEMENT

SECTION 260519 - LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Copper building wire.

2. Metal-clad cable, Type MC.

3. Tray cable, Type TC-ER.

4. Connectors and splices.

1.2 MEASUREMENT AND PAYMENT

A. No separate payment will be made for the work included under this section; rather payment shall be considered to be included in the items for work listed in the Schedule of Items.

PART 2 - PRODUCTS

2.1 COPPER BUILDING WIRE

A. Description: Flexible, insulated and uninsulated, drawn copper current-carrying conductor with an overall insulation layer or jacket, or both, rated 600 V or less.

B. Standards:

1. Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

C. Conductor Insulation:

1. Type USE-2. Comply with UL 854.

2. Type THWN-2. Comply with UL 83.

3. Type XHHW-2. Comply with UL 44.

2.2 METAL-CLAD CABLE, TYPE MC

A. Description: A factory assembly of one or more current-carrying insulated conductors in an overall metallic sheath.

B. Standards:

1. Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

2. Comply with UL 1569.

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 260519-2

C. Circuits:

1. Single circuit.

2. Power-Limited Fire-Alarm Circuits: Comply with UL 1424.

D. Conductors: Copper, complying with ASTM B3 for bare annealed copper and with ASTM B8 for stranded conductors.

2.3 PHOTOVOLTAIC CABLE, TYPE PV

A. Listed type PV cables are allowed for 12 Vdc wiring, but are not required.

2.4 TRAY CABLE, TYPE TC

A. Description: A factory assembly of insulated current-carrying conductors with or without an equipment grounding conductor in a nonmetallic jacket.

B. Standards:

1. Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

2. Comply with UL 1277.

3. Comply with ICEA S-95-658/NEMA WC 70 for Type TC cables used for power distribution.

C. Conductors: Copper, complying with ASTM B3 for bare annealed copper and with ASTM B8 for stranded conductors.

D. Conductor Insulation: Type XHHW-2. Comply with UL 44.

1. Outer jacket shall be listed “Sunlight Resistant.”

2.5 CONNECTORS AND SPLICES

A. Description: Factory-fabricated connectors, splices, and lugs of size, ampacity rating, material, type, and class for application and service indicated; listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and use.

B. Jacketed Cable Connectors: For steel and aluminum jacketed cables, zinc die-cast with set screws, designed to connect conductors specified in this Section.

C. Lugs: One piece, seamless, designed to terminate conductors specified in this Section and meet installation requirements.

PART 3 - EXECUTION

3.1 CONDUCTOR INSULATION AND MULTICONDUCTOR CABLE APPLICATIONS

AND WIRING METHODS

A. Feeders and Circuits: Type THHN/THWN-2, or XHHW-2, single conductors in raceway.

LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 260519-3

B. Battery Charge Circuits: Type THHN/THWN-2, or XHHW-2, single conductors in raceway; and Type MC or TC-ER cables.

C. If change order replaced per requirements on drawings, PV Source Circuits: Type PV, USE-2, THHN/THWN-2, or XHHW-2, single conductors in raceway.

1. Final connection to module may be the same or continue from a junction box with Type MC or TC-ER cables, Type USE-2 or XHHW single conductors, or integrated module leads are allowed:

a. Sunlight resistant, wet location, and 90°C minimum ratings required.

3.2 INSTALLATION, GENERAL

A. Complete raceway installation between conductor and cable termination points in accordance with Section 260533.13 "Conduits for Electrical Systems" prior to pulling conductors and cables.

B. Use manufacturer-approved pulling compound or lubricant where necessary; compound used must not deteriorate conductor or insulation. Do not exceed manufacturer's recommended maximum pulling tensions and sidewall pressure values.

C. Use pulling means, including fish tape, cable, rope, and basket-weave wire/cable grips, that will not damage cables or raceway.

D. Install exposed cables parallel and perpendicular to surfaces of exposed structural members, and follow surface contours where possible.

3.3 CONNECTIONS

A. Tighten electrical connectors and terminals according to manufacturer's published torque-tightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A-486B.

B. Make splices, terminations, and taps that are compatible with conductor material.

C. Wiring at Outlets: Install conductor at each outlet, with at least 6 inch (150 mm) of slack.

3.4 IDENTIFICATION

A. Identify and color-code conductors and cables according to Section 260553 "Identification for Electrical Systems."

END OF SECTION 260519

CONDUITS FOR ELECTRICAL SYSTEMS 260533.13-1

SHAKE CREEK GENERATOR REPLACEMENT

SECTION 260533.13 - CONDUITS FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Type EMT duct raceways and elbows.

2. Type ERMC duct raceways, elbows, couplings, and nipples.

3. Type IMC duct raceways.

4. Type LFMC duct raceways.

5. Type LFNC duct raceways.

6. Fittings for conduit, tubing, and cable.

1.2 DEFINITIONS

A. Conduit: A structure containing one or more duct raceways.

B. Duct Raceway: A single enclosed raceway for conductors or cable.

1.3 MEASUREMENT AND PAYMENT

A. No separate payment will be made for the work included under this section; rather payment shall be considered to be included in the items for work listed in the Schedule of Items.

PART 2 - PRODUCTS

2.1 TYPE EMT DUCT RACEWAYS AND ELBOWS

A. UL FJMX - Steel Electrical Metal Tubing (EMT-S) and Elbows:

1. Material: Steel. Aluminum may be used interior only.

2.2 TYPE ERMC-S DUCT RACEWAYS, ELBOWS, COUPLINGS, AND NIPPLES

A. UL DYIX - Galvanized-Steel Electrical Rigid Metal Conduit (ERMC-S-G), Elbows, Couplings, and Nipples:

2.3 TYPE IMC DUCT RACEWAYS

A. UL DYBY - Steel Intermediate Metal Conduit (IMC):

1. Exterior Coating: Zinc.

2.4 TYPE LFMC DUCT RACEWAYS

CONDUITS FOR ELECTRICAL SYSTEMS 260533.13-2

A. UL DXHR - Steel Liquidtight Flexible Metal Conduit (LFMC-S).

2.5 TYPE LFNC DUCT RACEWAYS

A. UL DXOQ - Liquidtight Flexible Nonmetallic Conduit (LFNC):

a. Markings: 90 deg C dry, Sunlight resistant, and Direct burial.

2.6 FITTINGS FOR CONDUIT, TUBING, AND CABLE

A. Fittings, General: Listed and labeled for type of conduit, location, and use.

B. Fittings for Type ERMC, and Type IMC Duct Raceways: UL CCN DWTT; including

UL 514B.

C. Fittings for Type EMT Duct Raceways: UL CCN FKAV; including UL 514B.

D. UL DXAS - Fittings for Type LFMC and Type LFNC Duct Raceways:

1. Listing Criteria: UL CCN DXAS; including UL 514B.

PART 3 - EXECUTION

3.1 SELECTION OF CONDUITS FOR ELECTRICAL SYSTEMS

A. Exposed and Not Subject to Physical Damage: ERMC, IMC, or Corrosion-resistant

EMT.

1) Do not use EMT in direct contact with concrete.

B. Connection to Generator: LFMC or LFNC.

C. Duct Fittings: Select fittings in accordance with NEMA FB 2.10 guidelines.

1. ERMC and IMC: Provide threaded-type fittings unless otherwise indicated.

D. If existing cabling method used for PV module connection, the existing method is allowed outside a raceway based on conditions noted in drawings.

E. Reuse/rework of existing duct raceways is allowed.

3.2 INSTALLATION OF CONDUITS FOR ELECTRICAL SYSTEMS

A. Comply with manufacturer's published instructions.

B. Special Installation Techniques:

1. General Requirements for Installation of Duct Raceways:

a. Complete duct raceway installation before starting conductor installation.

b. Support within 12 inch (300 mm) of changes in direction.

c. Make bends in duct raceway using large-radius preformed ells except for parallel bends. Field bending must be in accordance with NFPA 70 minimum

CONDUITS FOR ELECTRICAL SYSTEMS 260533.13-3

radii requirements. Provide only equipment specifically designed for material and size involved.

d. Do not install conduits within 2 inch (50 mm) of the bottom side of a metal deck roof.

e. Cut conduit perpendicular to the length. For conduits metric designator 53 (trade size 2) and larger, use roll cutter or a guide to make cut straight and perpendicular to the length. Ream inside of conduit to remove burrs.

f. Install duct raceways square to the enclosure and terminate at enclosures without hubs with locknuts on both sides of enclosure wall. Install locknuts hand tight, plus one-quarter turn more.

1) Termination fittings with shoulders do not require two locknuts.

g. Terminate threaded conduits into threaded hubs or with locknuts on inside and outside of boxes or cabinets. Install bushings on conduits up to metric designator 35 (trade size 1-1/4) and insulated throat metal bushings on metric designator 41 (trade size 1-1/2) and larger conduits terminated with locknuts.

2. Identification: Provide labels for conduit assemblies, duct raceways, and associated electrical equipment.

a. Provide warning signs.

3.3 PROTECTION

A. Protect coatings, finishes, and cabinets from damage and deterioration.

1. Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer.

END OF SECTION 260533.13

IDENTIFICATION FOR ELECTRICAL SYSTEMS 260553-1

SHAKE CREEK GENERATOR REPLACEMENT

SECTION 260553 - IDENTIFICATION FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Labels.

2. Tapes.

3. Signs.

4. As-built.

1.2 MEASUREMENT AND PAYMENT

A. No separate payment will be made for the work included under this section; rather payment shall be considered to be included in the items for work listed in the Schedule of Items.

PART 2 - PRODUCTS

2.1 LABELS

A. UL PGDQ2 - Vinyl Wraparound Labels: Preprinted, flexible labels laminated with clear, weather- and chemical-resistant coating and matching wraparound clear adhesive tape for securing label ends.

B. UL PGDQ2 - Self-Adhesive Labels: Polyester or Vinyl, thermal, transfer-printed, 3 mil (0.08 mm) thick, multicolor, weather- and UV-resistant, pressure-sensitive adhesive labels, configured for intended use and location.

2.2 TAPES AND STENCILS

A. Marker Tapes: Vinyl or vinyl-cloth, self-adhesive wraparound type, with circuit identification legend machine printed by thermal transfer or equivalent process.

B. Self-Adhesive Vinyl Tape: Colored, heavy duty, waterproof, fade resistant; not less than 3 mil (0.08 mm) thick by 1 to 2 inch (25 to 50 mm) wide; compounded for outdoor use.

2.3 SIGNS

A. Laminated Acrylic or Melamine Plastic Signs:

1. Engraved legend.

2. Thickness:

a. For signs up to 20 sq. inch (129 sq. cm), minimum 1/16 inch (1.6 mm) thick.

IDENTIFICATION FOR ELECTRICAL SYSTEMS 260553-2

b. For signs larger than 20 sq. inch (129 sq. cm), 1/8 inch (3.2 mm) thick.

c. Engraved legend with black letters on white face unless otherwise required on drawings.

d. Punched or drilled for mechanical fasteners with 1/4 inch (6.4 mm) grommets in corners for mounting, or Self-adhesive.

PART 3 - EXECUTION

3.1 PREPARATION

A. Self-Adhesive Identification Products: Before applying electrical identification products, clean substrates of substances that could impair bond, using materials and methods recommended by manufacturer of identification product.

3.2 SELECTION OF SIGNS AND HAZARD MARKINGS

A. Comply with 29 CFR 1910.145 for danger, caution, warning, and safety instruction signs.

B. Signs, labels, and tags required for personnel safety must comply with the following standards:

1. Safety Colors: NEMA Z535.1.

2. Facility Safety Signs: NEMA Z535.2.

3. Safety Symbols: NEMA Z535.3.

4. Product Safety Signs and Labels: NEMA Z535.4.

5. Safety Tags and Barricade Tapes for Temporary Hazards: NEMA Z535.5.

C. Electrical Hazard Warnings:

1. Arc-Flash Hazard Warning: Self-adhesive labels.

a. Legend: “WARNING - ARC FLASH & SHOCK HAZARD.

APPROPRIATE PPE REQUIRED.”

2. Multiple Power Sources Warning Legend: "HAZARD - EQUIPMENT HAS

MULTIPLE POWER SOURCES."

3. DC Cables or Raceways Warning: Self-adhesive labels.

a. Legend: “SOLAR PV DC CIRCUIT” or PHOTOVOLTAIC POWER

SOURCE.”

b. Color: White on red background.

c. Text height, minimum: 9.5 mm (3/8 inch).

D. Warning Labels for Existing Feeder Disconnect and New Control Enclosure: Self-adhesive labels; Baked-enamel warning signs; or Metal-backed, butyrate warning signs.

1. Apply to exterior of door, cover, or other access.

2. For equipment with multiple power or control sources, apply to door or cover of new control enclosure.

E. Warning Labels for All DC Cabling or Raceways: Self-adhesive labels.

IDENTIFICATION FOR ELECTRICAL SYSTEMS 260553-3

1. Apply to raceway or cable .

F. Equipment Labels for Controls: Self-adhesive labels, or laminated acrylic or melamine plastic signs.

1. Switches shall be labeled both inside and on exterior of controls enclosure.

2. Equipment to be labeled:

a. Timer A “A - GENERATOR ON-DELAY.”

b. Timer B “B - GENERATOR CONTROLLER OFF-DELAY”

c. Switch C “CONTROLS POWER.”

d. Switch D “GENERATOR.”

e. Sunsaver E “E - CONTROLS BATTERY CHARGER.”

f. Sunsaver F “F - GENERATOR BATTERY CHARGER.”

g. Switch G “ARRAY DISCONNECT.”

G. Operating Instruction Signs: Laminated acrylic or melamine plastic signs.

1. At entry: “RAPID SHUTDOWN NOT REQUIRED. SYSTEM Voc < 25 VOLTS DC. Isc < 8 AMPS.”

2. At controls enclosure:

“KEEP ‘ARRAY DISCONNECT’ IN ON POSITION EXCEPT WHEN SERVICING

CONTROLS OR GENERATOR WHEN BATTERIES ARE INSTALLED. When servicing ARRAY DISCONNECT, CONTROLS POWER, and GENERATOR switches shall be in the OFF or STOP positions.

SUMMER OPERATION:

WARNING - DO NOT OPERATE IF KEYED ‘CONTROLS POWER’ IS OFF. VERIFY

THAT ELECTRICAL SYSTEM IS NOT BEING WORKED ON (LOCKOUT/TAGOUT

PROCEDURE) OR OTHERWISE IN AN UNSAFE CONDITION.

- DO NOT OPERATE UNLESS ALL SCHEDULED GENERATOR MAINTENANCE IS

COMPLETE AND YOU HAVE PERMISSION TO OPERATE. Do not operate longer than you have permission for.

- System requires both batteries to be installed electrically isolated from each other and fully charged to operate.

- Keep ARRAY DISCONNECT and keyed CONTROLS POWER in the ON position.

- TO START GENERATOR:

Verify generator has adequate engine oil and coolant fluid.

Place control enclosure GENERATOR switch in the ON position. Generator mounted controls will activate and the generator will automatically start in 5 minutes.

-TO STOP GENERATOR: Place control enclosure GENERATOR switch in the OFF position. Generator will shutdown (there may be a cooldown cycle for up to 5 minutes), then after 10 minutes the generator mounted controls will deactivate.

WINTERIZING:

- Place all switches in the off position.

- Disconnect and remove batteries marking which battery is for the controls and which is for the generator. Top off batteries charge and store batteries in heated storage.

IDENTIFICATION FOR ELECTRICAL SYSTEMS 260553-4

- Perform all needed maintenance.

SUMMER START-UP:

- Top off batteries charge before bringing them to the site after they have sat for the winter.

- Perform all required maintenance according to O&M manual.

- Visually inspect and verify site electrical system is in good repair, look for both environmental and animal caused damage.

- Once all maintenance and any electrical issues are corrected, the generator may be placed into service.”

H. Wiring Labels, Control Enclosure Interior: Vinyl wraparound labels unique to each control wire at both ends and coordinated with and noted on final control drawing.

I. Control Drawing, Provide As-built Control Drawings.

1. Hard copies (2 required): One shall be laminated and installed next to or inside control enclosure, the other shall be installed in the O&M manual.

2. Electronic copy: Full size (11”x17”) PDF. The file may be scanned from the as-built.

3.3 INSTALLATION

A. Install identification materials and devices at locations for most convenient viewing without interference with operation and maintenance of equipment. Install access doors or panels to provide view of identifying devices.

B. Verify and coordinate identification names, abbreviations, colors, and other features with requirements in other Sections requiring identification applications, Drawings, Shop Drawings, manufacturer's wiring diagrams, and operation and maintenance manual. Use consistent designations throughout Project.

C. Verify identity of item before installing identification products.

D. Coordinate identification with Project Drawings, manufacturer's wiring diagrams, and operation and maintenance manual.

E. Apply identification devices to surfaces that require finish after completing finish work.

F. Install signs with approved legend to facilitate proper identification, operation, and maintenance of electrical systems and connected items.

G. Self-Adhesive Wraparound Labels: Secure tight to surface at location with high visibility and accessibility.

H. Marker Tapes: Secure tight to surface at location with high visibility and accessibility.

I. Self-Adhesive Vinyl Tape: Secure tight to surface at location with high visibility and accessibility.

1. Field-Applied, Color-Coding Conductor Tape: Apply in half-lapped turns for minimum distance of 6 inch (150 mm) where splices or taps are made. Apply last two turns of tape with no tension to prevent possible unwinding.

IDENTIFICATION FOR ELECTRICAL SYSTEMS 260553-5

J. Laminated Acrylic or Melamine Plastic Signs: Attach signs that are not self-adhesive type with mechanical fasteners appropriate to location and substrate.

END OF SECTION 260553

GAS-ENGINE-DRIVEN GENERATOR SETS 263213.16-1

SHAKE CREEK GENERATOR REPLACEMENT

SECTION 263213.16 - GAS-ENGINE-DRIVEN GENERATOR SETS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. LP gas engine.

2. Gaseous fuel system.

3. Control.

4. Generator overcurrent and fault protection.

5. Generator, exciter, and voltage regulator.

6. Outdoor generator-set enclosure.

1.2 SUBMITTALS

A. Product Data: For each product specified.

1. Include rated capacities, operating characteristics, electrical characteristics, and furnished specialties and accessories.

2. Include time-current characteristic curves for generator protective device.

3. Include fuel consumption in cubic feet per hour (cubic meters per hour) at 0.8 power factor at 0.5, 0.75 and 1.0 times generator capacity.

4. Include generator efficiency at 0.8 power factor at 0.5, 0.75, and 1.0 times generator capacity.

5. Include generator characteristics, including, but not limited to, kilowatt rating, efficiency, reactances, and short-circuit current capability.

6. Include plans and elevations for engine generator and other components specified.

7. Include details of equipment assemblies. Indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of each field connection.

8. Identify fluid drain ports and clearance requirements for proper fluid drain.

9. Include diagrams for power, signal, and control wiring. Complete schematic, wiring, and interconnection diagrams showing terminal markings and functional relationship between all electrical components.

B. Field quality-control reports.

C. Operation and Maintenance Data: For engine generators to include operation, and maintenance manuals.

1.3 WARRANTY

GAS-ENGINE-DRIVEN GENERATOR SETS 263213.16-2

A. Manufacturer's Warranty: Manufacturer agrees to repair or replace components of packaged engine generators and associated auxiliary components that fail in materials or workmanship within specified warranty period.

1. Standard Limited Warranty Period: 5 year/2000 hours from date of Substantial Completion.

1.4 MEASUREMENT AND PAYMENT

A. No separate payment will be made for the work included under this section; rather payment shall be considered to be included in the items for work listed in the Schedule of Items.

PART 2 - PRODUCTS

2.1 GENERATOR

A. Subject to compliance with requirements, other products may be incorporated into the Work. The following product sets the minimum standard:

1. Kohler Power Systems, Model 25CCL.

a. 120/240 V(ac), single phase, fully rated standby.

b. Water cooled.

c. APM402 controller.

1) Run relay.

d. Sound enclosure with enclosed silencer and other standard features.

e. Battery.

f. Battey charger, 10 amp with temperature compensation.

g. Air cleaner restriction indicator.

h. Startup service.

i. Maintenance kit.

j. General maintenance literature.

B. Source Limitations: Obtain packaged engine generators and auxiliary components through one source from a single manufacturer.

2.2 PERFORMANCE REQUIREMENTS

A. NFPA Compliance:

1. Comply with NFPA 70.

B. UL Compliance: Comply with UL 2200.

C. Noise Emission: 57 dB(A) log average @ 7 m (23 ft.) at no load, less than 70 dB(A) at full load.

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D. Environmental Conditions: Engine generator system shall withstand the following environmental conditions without mechanical or electrical damage or degradation of performance capability:

1. Ambient Temperature: 5 to 104 deg F (Minus 15 to plus 40 deg C), no deration.

2. Altitude: 4800 feet (1440 m), no deration.

2.3 ENGINE GENERATOR ASSEMBLY DESCRIPTION

A. Factory-assembled and -tested, water-cooled engine, with brushless generator and accessories.

B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a testing agency acceptable to authorities having jurisdiction, and marked for intended location and use.

C. Power Rating: Standby/Industrial.

D. Power Factor: 0.8, lagging.

E. Frequency: 60 Hz.

F. Voltage: 240 V ac.

G. Phase: Single-phase, three wire.

H. Induction Method: Turbocharged.

I. Governor: Adjustable isochronous, with speed sensing.

J. Mounting Frame: Structural steel framework to maintain alignment of mounted components without depending on concrete foundation.

K. Engine Generator Performance:

1. Capable of 1 step transfer of rated load.

2. Steady-State Voltage Operational Bandwidth: 3 percent of rated output voltage from no load to full load.

3. Transient Voltage Performance: Not more than 20 percent variation for 50 percent step-load increase or decrease. Voltage shall recover and remain within the steady-state operating band within three seconds.

4. Steady-State Frequency Operational Bandwidth: 0.5 percent of rated frequency from no load to full load.

5. Steady-State Frequency Stability: When system is operating at any constant load within the rated load, there shall be no random speed variations outside the steady-state operational band and no hunting or surging of speed.

6. Transient Frequency Performance: Less than 5 percent variation for 50 percent step-load increase or decrease. Frequency shall recover and remain within the steady-state operating band within five seconds.

7. Output Waveform: At no load, harmonic content measured line to line or line to neutral shall not exceed 5 percent total and 3 percent for single harmonics.

GAS-ENGINE-DRIVEN GENERATOR SETS 263213.16-4

Telephone influence factor, determined according to NEMA MG 1, shall not exceed 50 percent.

8. Start Time:

a. 10 seconds.

b. Extended start time expected at temperatures below 32 deg F (0 deg C).

2.4 GAS ENGINE

A. Fuel: LP gas.

B. Rated Engine Speed: 1800 rpm.

C. Lubrication System: Engine or skid-mounted.

1. Filter and Strainer: Rated to remove 90 percent of particles 5 micrometers and smaller while passing full flow.

2. Thermostatic Control Valve: Control flow in system to maintain optimum oil temperature. Unit shall be capable of full flow and is designed to be fail-safe.

3. Crankcase Drain: Arranged for complete gravity drainage to an easily removable container with no disassembly and without use of pumps, siphons, special tools, or appliances.

D. Air-Intake Filter: Heavy-duty, engine-mounted air cleaner with replaceable dry-filter element and "blocked filter" indicator.

E. Starting System: 12-V electric, with negative ground.

1. Components: Sized so they are not damaged during a full engine-cranking cycle with ambient temperature at maximum specified in "Performance Requirements" Article.

2. Cranking Motor: Heavy-duty unit that automatically engages and releases from engine flywheel without binding.

3. Cranking Cycle: 60 seconds.

4. Battery: Lead acid, with capacity within ambient temperature range specified in

"Performance Requirements" Article to provide specified cranking cycle at least three times without recharging.

5. Battery Cable: Size as recommended by engine manufacturer for cable length indicated. Include required interconnecting conductors and connection accessories.

6. Battery-Charging Alternator: Factory mounted on engine with solid-state voltage regulation and 90 A minimum rating.

2.5 GAS FUEL SYSTEM

A. LP Gas Piping: Verify that existing line size is adequate.

B. Engine Fuel System:

C. LP Gas, Vapor-Withdrawal System:

1. Carburetor.

GAS-ENGINE-DRIVEN GENERATOR SETS 263213.16-5

2. Gas Fuel System includes:

a. Fuel mixer.

b. Electronic secondary gas regulator

c. Gas solenoid valve.

3. Flexible Fuel Connectors.

2.6 CONTROL AND MONITORING

A. Manual Starting System Sequence of Operation: Switching on-off switch on the generator control panel to the on position starts engine generator. The off position of same switch initiates generator-set shutdown. When engine generator is running, specified system or equipment failures or derangements automatically shut down engine generator and initiate alarms.

B. Comply with UL 508A.

C. Configuration:

1. Operating and safety indications, protective devices, basic system controls, and engine gages shall be grouped in a common control and monitoring panel mounted on the engine generator. Mounting method shall isolate the control panel from generator-set vibration. Panel shall be powered from the engine generator battery.

D. Control and Monitoring Panel:

1. Digital controller with integrated LCD, controls, and microprocessor, capable of local and remote control, monitoring, and programming, with battery backup.

2. Instruments: Located on the control and monitoring panel and viewable during operation.

a. Engine lubricating-oil pressure gage.

b. Engine-coolant temperature gage.

c. DC voltmeter (alternator battery charging).

d. Running-time meter.

e. AC voltmeter, for each phase.

f. AC ammeter, for each phase.

g. AC frequency meter.

h. Generator-voltage adjusting to plus or minus 10%.

3. Controls and Protective Devices: Controls, shutdown devices, and common visual alarm indication, including the following:

a. Cranking control equipment.

b. Run-Off-Auto switch.

c. Control switch not in automatic position alarm.

d. Overcrank alarm.

e. Overcrank shutdown device.

f. Overspeed alarm.

g. Coolant low-level alarm.

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h. Coolant high-temperature prealarm.

i. Coolant low-temperature alarm.

j. Coolant high-temperature shutdown device.

k. Contacts for local and remote common alarm.

l. Emergency manual stop shutdown device.

m. Hours of operation.

n. Engine generator metering, including voltage, current, Hz, kW, kVA, and power factor.

4. Event log (stores up to 1000 system events).

5. Run-Off-Auto switch.

6. Lamp test.

E. Supporting Items: Include sensors, transducers, terminals, relays, and other devices and include wiring required to support specified items. Locate sensors and other supporting items on engine or generator, unless otherwise indicated.

2.7 GENERATOR OVERCURRENT AND FAULT PROTECTION

A. Generator Overcurrent Protective Device:

1. Molded-case circuit breaker, thermal-magnetic type; 100 percent rated; complying with UL 489:

a. Tripping Characteristic: Designed specifically for generator protection.

b. Trip Rating: Matched to generator output rating.

c. Mounting: Adjacent to or integrated with control and monitoring panel.

2.8 GENERATOR, EXCITER, AND VOLTAGE REGULATOR

A. Comply with NEMA MG 1.

B. Drive: Generator shaft shall be directly connected to engine shaft. Exciter shall be rotated integrally with generator rotor.

C. Electrical Insulation: Class H.

D. Stator-Winding Leads: Brought out to terminal box to permit future reconnection for other voltages if required. Provide 4 lead alternator.

E. Enclosure: Self-ventilated and dripproof.

F. Voltage Regulator: Solid-state type, separate from exciter, providing performance as specified.

1. Maintain voltage within 30 percent on one step, full load.

2. Provide anti-hunt provision to stabilize voltage.

3. Maintain frequency within 5 percent and stabilize at rated frequency within 5 seconds.

G. Sustained short-circuit current enabling downstream circuit breakers to trip without collapsing the alternator field.

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H. Windings: Two-thirds pitch stator winding and fully linked amortisseur winding.

I. Subtransient Reactance: 12 percent, maximum.

2.9 OUTDOOR GENERATOR-SET ENCLOSURE

A. Description:

1. Sound-attenuating, weatherproof aluminum housing. Multiple panels shall be lockable and provide adequate access to components requiring maintenance. Panels shall be removable by one person without tools. Instruments and control shall be mounted within enclosure.

B. Muffler Location: Within enclosure.

C. Engine Cooling Airflow through Enclosure: Maintain temperature rise of system components within required limits when unit operates at rated load for 4 hours with ambient temperature at top of range specified in system service conditions.

2.10 FINISHES

A. Indoor and Outdoor Enclosures and Components: Manufacturer's standard finish over corrosion-resistant pretreatment and compatible primer.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas, equipment bases, and conditions, with Installer present, for compliance with requirements for installation and other conditions affecting packaged engine generator performance.

B. Examine existing roughing-in for piping systems and electrical connections. Verify actual locations of connections before packaged engine generator installation.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Interruption of Existing Electrical Service: Do not interrupt electrical service to facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary electrical service according to requirements indicated:

1. Notify Contracting Officer no fewer than two working days in advance of proposed interruption of electrical service.

2. Do not proceed with interruption of electrical service without Contracting Officer’s written permission.

B. Prepare existing generator for replacement and removal from site.

GAS-ENGINE-DRIVEN GENERATOR SETS 263213.16-8

3.3 INSTALLATION

A. Comply with NECA 1 and NECA 404.

B. Comply with packaged engine generator manufacturers' written installation and alignment instructions.

C. Equipment Mounting:

1. Install packaged engine generators on existing concrete floor. Provide access around generator per manufacturers requirements and all for 4-ft (1220 mm) work from the rooms long solid wall for future equipment. In other words keep the generator towards the wall with the removable siding (for cooling during operational months).

a. Install packaged engine generator to provide access, without removing connections or accessories, for periodic maintenance.

D. Electrical Wiring:

3.4 CONNECTIONS

A. Gaseous Fuel Connections:

1. Connect to existing LP gas piping and shutoff valve. Extend as needed with black piping to the interior of the generator enclosure and supply new final flexible piping to generator gas fuel system.

2. Connect fuel piping to engines with a gate valve and union and flexible connector.

3. Install manual shutoff valve in a remote location to isolate gaseous fuel supply to the generator.

4. Vent gas pressure regulators outside building a minimum of 60 inches (1500 mm) from building openings.

B. Connect to existing electrical feeder and conductors and grounding electrode system.

Extend as needed with IMC conduit and conductors with LFNC or LFMC for the final connection.

1. Neutral bond to grounding electrode system connection shall exist at existing disconnect equipment as currently exists.

3.5 FIELD QUALITY CONTROL

A. Testing and Startup Service

1. Engage a factory-authorized service representative to test and inspect components, assemblies, and equipment installations, including connections.

a. Perform tests recommended by manufacturer and each visual and mechanical inspection. Certify compliance with test parameters.

GAS-ENGINE-DRIVEN GENERATOR SETS 263213.16-9

1) Functionally test engine shutdown for low oil pressure, overtemperature, overspeed, and other protection features as applicable.

3.6 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain packaged engine generators.

END OF SECTION 263213.16

April 2023