2-EMERGENCY GENERATOR REPLACEMENT BID SPECIFICATIONS.pdf

MILFORD TOWNSHIP

EMERGENCY GENERATOR REPLACEMENT BID SPECIFICATIONS

Project Location:

Milford Township Municipal Building 2100 Krammes Road Quakertown, PA 18951 215.536.2090

General

The Work generally consists of the removal and disposal of the existing 60 kW standby generator, removal of the existing manual transfer equipment, removal and replacement of the existing undersized concrete generator pad, and furnishing and installation of a new diesel-fueled standby generator, sub-base fuel tank, 400-amp automatic transfer switch, consolidated utility service entrance/transfer equipment, and associated electrical work, all as more fully described below.

Scope of Work

1. Removal and Disposal of Existing Generator

Disconnect, unwire, remove, and properly dispose of the existing approximately 60 kW standby generator located within the fenced generator compound.

Removal shall include all lifting, rigging, transportation, recycling or lawful disposal, and associated work. Upon removal, the existing generator shall become the responsibility of the Contractor and shall be removed from Township property.

2. Removal and Replacement of Existing Concrete Pad

The existing concrete generator pad is undersized and shall be completely removed and replaced.

The Contractor shall furnish and install a new reinforced concrete equipment pad of sufficient dimensions, thickness, reinforcement, elevation, and load capacity for the proposed generator and sub-base fuel tank and in accordance with the generator manufacturer's requirements and applicable codes.

The Work shall include demolition and disposal of the existing pad, excavation, subbase preparation, forming, reinforcement, concrete, anchorage, grading, and restoration necessary for a complete installation.

3. New Standby Generator

Furnish and install a new commercial/industrial diesel standby generator in generally the same location as the existing generator within the fenced compound.

The generator shall meet the following minimum requirements:

• 130 kW minimum standby rating

• 120/208 volts, 3-phase, 4-wire, 60 Hz

• 400-amp main circuit breaker

• Diesel engine suitable for emergency standby service

• Brushless alternator

• Automatic electronic engine governing

• Automatic voltage regulation

• Electronic generator controller

• Automatic starting system

• Engine block or jacket-water heater

• Starting batteries

• Automatic battery charger

• Battery heater where recommended by the manufacturer

• Sound attenuation suitable for installation at a municipal building

• NFPA 110 level 2 compliance or greater

• Shall be EPA-certified for stationary emergency use and comply with all applicable federal and Pennsylvania Department of Environmental Protection (PA DEP) emissions requirements.

• Emergency shutdown capability

• Required operating instrumentation, alarms, protective devices, and safety shutdowns

The equipment shall be new and current production.

Acceptable manufacturers include Cummins, Caterpillar, Rehlko/Kohler, Generac Industrial, or approved equivalent.

The 130 kW generator capacity is based upon an estimated load calculation performed by an experienced electrical contractor. The bidder shall confirm that its proposed generator is suitable for the intended application and loads.

If the bidder determines that a 130 kW generator is insufficient for the intended loads or motor-starting requirements, the bidder shall notify the Township in writing prior to the deadline for bidder questions.

4. Sub-Base Diesel Fuel Tank

Provide a new UL-listed, double-wall diesel sub-base fuel tank designed for use with the proposed generator.

The tank shall provide sufficient usable fuel capacity for not less than 36 hours of continuous operation at 75% of rated standby load, based upon the generator manufacturer's published fuel-consumption data.

The bidder shall identify:

• Total tank capacity;

• Usable fuel capacity;

• Fuel consumption at 75% generator load; and

• Calculated operating time at 75% load.

The Contractor shall provide a complete initial fill of ultra-low sulfur diesel fuel to 100% capacity upon successful completion of testing and prior to final acceptance

All diesel fuel provided shall be chemically treated/winterized with anti-gel additives appropiate for the local climate.

The fuel system shall include all required containment, vents, fill connections, gauges, leak detection or alarms, and associated equipment required for a complete code-compliant installation.

5. Existing Security Fence and Equipment Access

The existing generator and generator pad are located within a secured fenced compound.

The Contractor shall provide all work necessary to access the fenced compound and remove the existing generator and concrete pad and install the new pad and generator.

Any temporary removal or modification of fencing, gates, posts, or related components necessary to perform the Work shall be included in the Base Bid.

All fencing and other improvements disturbed during construction shall be reinstalled and restored to their existing or better condition upon completion.

6. Removal of Existing Manual Transfer Equipment

The existing standby generator system utilizes a manual transfer arrangement. There is presently no automatic transfer switch.

The Contractor shall disconnect and completely remove the existing manual transfer equipment and associated components that are superseded by the new automatic transfer system.

Existing electrical equipment intended to remain shall be properly incorporated into the new installation.

7. Automatic Transfer Switch

Furnish and install a new 400-amp, 120/208V, 3-phase, 4-wire, 4-pole switched-neutral automatic transfer switch (ATS).

The ATS shall be installed at the location currently occupied by the existing manual transfer equipment, subject to required code clearances and field verification.

The ATS shall:

• Have a continuous rating of not less than 400 amperes;

• Be 4-pole with switched neutral;

• Be suitable for the installation location;

• Automatically monitor normal utility power;

• Automatically start the generator upon loss or unacceptable condition of normal utility power;

• Automatically transfer the building load to generator power following an appropriate adjustable time delay;

• Automatically retransfer the load following restoration and stabilization of normal utility power;

• Provide an adjustable generator cool-down period;

• Include manual test capability;

• Provide appropriate status indication and controls;

• Be UL-listed for its intended application; and

• Have a withstand and closing rating appropriate for the available fault current and upstream overcurrent protection.

8. Consolidated ATS and Utility Service Entrance

The existing arrangement in which the utility service entrance equipment and manual transfer equipment are located in two separate structures/enclosures shall not be replicated.

The new installation shall provide a single, unified and coordinated utility service entrance and automatic transfer switch installation, utilizing an integrated assembly, common equipment structure, or other code-compliant consolidated arrangement acceptable to the serving electric utility and applicable reviewing authorities.

The consolidated installation shall be located at the existing manual transfer equipment location unless otherwise approved by the Township.

The Contractor shall provide all service-entrance equipment, disconnecting means, overcurrent protection, metering provisions, supports, enclosures, conduit, conductors, grounding, bonding, and related equipment necessary for the complete installation.

The existing 400-amp building distribution panel shall remain in service and shall not be replaced.

The contractor shall coordinate the new service entrance/ATS arrangement with the serving electric utility and obtain required utility approvals.

Temporary Generator: If the planned power outage exceeds 120 minutes, the Contractor shall provide a temporary mobile generator to maintain essential municipal building operations during the transition.

Prior to ordering equipment, the contractor shall submit for Township review a manufacturer's equipment drawing and electrical one-line diagram showing the proposed arrangement.

9. Electrical Installation

Provide all wiring, conduit, conductors, controls, overcurrent protection, terminations, grounding, bonding, labeling, and related electrical equipment required to connect:

Utility Service → New 400A Service Entrance/4-Pole ATS → Existing 400A Building Distribution Panel and:

New 130 kW Generator → 400A Generator Circuit Breaker → New ATS

All electrical work shall comply with the applicable National Electrical Code, Pennsylvania Uniform Construction Code, utility requirements, and other applicable Township and Commonwealth requirements.

10. Remote Emergency Stop/Annunciator Panel

Furnish and install a remote emergency stop (E-stop) station in a location readily accessible to emergency personnel while protected from accidental activation.

Furnish and install an Annunciator panel installed inside building to alert staff if the generator has a low fuel, low battery, or fault condition.

Final locations shall be coordinated with the Township.

11. Crane, Rigging, and Equipment Handling

Provide all crane, rigging, lifting, and equipment-handling services required for removal of the existing 60 kW generator and placement of the new generator.

Because the generator is located within a secured fenced compound, the bidder shall account for site-access restrictions and necessary lifting arrangements in its Base Bid.

All crane, rigging, mobilization, and equipment-handling costs shall be included in the Base Bid.

12. Permits, Inspections, and Utility Coordination

The Contractor shall obtain all permits and approvals required for the Work and shall coordinate:

• Required plan review

• Electrical and other required inspections;

• Utility service interruption and reconnection;

• Utility metering requirements;

• Utility approval of the service entrance/ATS arrangement; and

• Final inspection and project closeout.

13. Submittals

Before ordering major equipment, the Contractor shall submit:

• Generator manufacturer and model;

• Generator technical data;

• Standby kW and kVA ratings;

• Manufacturer's generator-sizing information;

• Fuel-consumption data;

• Sub-base fuel tank specifications and usable capacity;

• ATS/service entrance manufacturer and model;

• ATS electrical ratings;

• ATS withstand and closing rating;

• Generator circuit-breaker information;

• Enclosure and sound data;

• Warranty information;

• Manufacturer's drawings for the consolidated service entrance/ATS equipment; and

• Electrical one-line diagram showing the utility service, ATS, generator, and existing

400A distribution panel.

Township review of submittals shall not relieve the Contractor of responsibility for providing a complete, code-compliant, and operational installation.

14. Startup, Testing, and Commissioning

Provide factory-authorized startup, testing, and commissioning of the complete system.

Testing shall include:

• Generator startup;

• Verification of voltage, frequency, and phase rotation;

• Simulation of utility power failure;

• Automatic generator starting;

• Automatic transfer from utility to generator;

• Operation of intended building loads on generator power;

• Automatic retransfer following restoration of utility power;

• Generator cool-down and shutdown;

• Verification of ATS operation and settings;

• Verification of alarms and safety shutdowns; and

• Provide and perform a two (2) hour resistive load-bank test, including 30 minutes at 50% load, 30 minutes at 75% load, and 60 minutes at 100% load. The Contractor shall provide a certified test report documenting the results. The Contractor shall correct deficiencies identified during testing at no additional cost to the Township.

Written startup, testing, and commissioning reports shall be provided to the Township.

15. Training and Closeout

Provide instruction to designated Township personnel regarding:

• Generator operation;

• ATS operation;

• System testing;

• Emergency shutdown;

• Fuel-system inspection;

• Routine maintenance; and

• Response to generator alarms and faults.

At completion, provide operating and maintenance manuals, warranty documents, equipment information, test and commissioning reports, and an as-built electrical one-line diagram.

16. Warranty and Service

The Base Bid shall include a minimum two-year comprehensive manufacturer's warranty covering the generator, diesel engine, alternator, controls, ATS, and associated factory equipment. The date of the warranty shall commence on the final acceptance by the township.

The bidder shall identify the factory-authorized service organization that will provide warranty and emergency service at the Milford Township Municipal Building and provide its address, telephone number, email address, and service contact information.

17. Bidder Qualifications

The bidder shall have demonstrated experience with commercial, industrial, institutional, or governmental standby-generator installations of comparable size and complexity.

The prime contractor need not be the generator manufacturer's authorized dealer, provided that manufacturer-required startup, commissioning, and warranty services are performed by a factory-authorized service organization.

The Township may require references for comparable installations.

18. Site Inspection

Bidders are strongly encouraged to inspect the project site prior to submitting a bid.

Each bidder shall be responsible for examining the existing generator, fenced compound, concrete pad, manual transfer equipment, utility service entrance, existing 400A electrical equipment, proposed ATS location, conduit routes, access, clearances, and other reasonably observable conditions affecting the Work.

Questions or requests for clarification shall be submitted in writing in accordance with the bidding requirements.

19. Complete Turnkey Installation

The Base Bid shall constitute a single lump-sum turnkey price and shall include all labor, equipment, materials, demolition, removal and disposal, new concrete pad, generator, sub-base fuel tank, consolidated service entrance/ATS equipment, electrical work, crane and rigging, permits, utility coordination, testing, commissioning, training, restoration, warranty, and incidental work reasonably necessary to provide Milford Township with a complete and fully operational automatic standby power system.