DRFTUFGS_11_11_37.pdf

EVSE Charging Stations EVSE

PROJECT TABLE OF CONTENTS

DIVISION 11 - EQUIPMENT

11 11 37 ELECTRICAL VEHICLE SUPPLY EQUIPMENT

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 1

SECTION TABLE OF CONTENTS

DIVISION 11 - EQUIPMENT

SECTION 11 11 37

ELECTRICAL VEHICLE SUPPLY EQUIPMENT

11/18

PART 1 GENERAL

1.1 REFERENCES

1.2 DEFINITIONS

1.2.1 ELECTRICAL VEHICLE SUPPLY EQUIPMENT

1.2.2 Certified Installers

1.3 SUBMITTALS

1.4 QUALITY CONTROL

1.4.1 Regulatory Requirements

1.4.2 Standard Products

1.4.2.1 Qualifications

1.4.2.2 Material and Equipment Manufacturing Date

1.4.2.3 EVSE Installers

1.5 WARRANTY

PART 2 PRODUCTS

2.1 PRODUCT COORDINATION

2.2 ELECTRICAL VEHICLE SUPPLY EQUIPMENT

2.2.1 System Description

2.2.2 Level 2 EVSE

2.2.2.1 Level 2 Wall Mounted EVSE

2.2.2.2 Level 2 Pedestal Mounted EVSE

2.2.3 Cords

2.3 CONNECTOR HOLSTER DOCK

2.4 PEDESTAL CONSTRUCTION

2.5 ACCESSORIES

2.6 CAST-IN-PLACE CONCRETE

2.7 MANUFACTURER'S NAMEPLATES

2.8 PAVEMENT MARKINGS

2.9 ELECTRIC VEHICLE SUPPLY EQUIPMENT (EVSE) SIGNAGE

2.10 WHEEL STOPS AND BOLLARDS

PART 3 EXECUTION

3.1 INSTALLATION

3.2 GROUNDING

3.2.1 Grounding Electrodes

3.3 FIELD APPLIED PAINTING

3.4 FIELD FABRICATED NAMEPLATE MOUNTING

3.5 FOUNDATION FOR EQUIPMENT AND ASSEMBLIES

3.5.1 Exterior Location

3.6 OPERATION AND MAINTENANCE

3.6.1 Operation and Maintenance Training

3.7 FIELD QUALITY CONTROL

3.7.1 Testing of Electrical Vehicle Supply Equipment

SECTION 11 11 37 Page 1

3.7.2 Performance of Acceptance Checks and Tests

3.7.2.1 EVSE

-- End of Section Table of Contents --

SECTION 11 11 37 Page 2

SECTION 11 11 37

ELECTRICAL VEHICLE SUPPLY EQUIPMENT

11/18

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.

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

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

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

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; TIA 17-15; TIA 17-16; TIA 17-17 )

National Electrical Code

UNDERWRITERS LABORATORIES (UL)

UL 2202 (2012; Reprint Feb 2018) UL Standard for Safety Electric Vehicle (EV) Charging System Equipment

UL 2231-1 (2012; Reprint Aug 2016) UL Standard for Safety Personnel Protection Systems for Electric Vehicle (EV) Supply Circuits:

General Requirements

UL 2231-2 (2012; Reprint Aug 2016) UL Standard for Safety Personnel Protection Systems for Electrical Vehicle (EV) Supply Circuits:

Particular Requirements for Protection Devices for Use in Charging Systems

UL 2251 (2017) UL Standard for Safety Plugs, Receptacles and Couplers for Electric Vehicles

UL 2594 (2016) UL Standard for Safety Electric Vehicle Supply Equipment

UL 62 (2018) UL Standard for Safety Flexible Cords and Cables

SECTION 11 11 37 Page 3

1.2 DEFINITIONS

1.2.1 ELECTRICAL VEHICLE SUPPLY EQUIPMENT

Electrical Vehicle Supply Equipment (EVSE), also referred to as "charging stations," encompasses the conductors, including the ungrounded, grounded, and equipment grounding conductors and the electric vehicle connectors, attachment plugs, and all other fittings, devices, power outlets, or apparatus installed specifically for the purpose of delivering energy from the premises wiring to the electric vehicle (EV). There are three types of

EVSE:

a. Level 1 - Refers to a freestanding or wall mounted charging device that delivers a 110/120V charge, replenishing an EV battery at a rate of 4 to 6 miles of range per hour of charging time. Charging an EV at Level 1 typically takes between 7 and 20 hours depending on the size of the vehicle's battery.

b. Level 2 - Refers to a freestanding or wall mounted charging device capable of being networked that delivers a 208/240V charge, replenishing an EV battery at a rate of 10 to 20 miles of range per hour of charging time. Charging an EV at Level 1 typically takes between 2 and 5 hours depending on the size of the vehicle's battery.

c. Direct Current (DC) Fast Charging, a freestanding or wall mounted device capable of being networked that is designed to charge vehicles more quickly than Level 1 or Level 2 with an electrical output ranging between 40 kW - 120 kW delivering a charge of up to 480V. DC Fast Charging can typically replenish an EV battery at a rate of 50 to 90 miles of range per 30 minutes of charging time.

1.2.2 Certified Installers

Installers must be certified by EVSE manufacturer or a recognized certified training agency.

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. Submittals with an "S" are for inclusion in the Sustainability eNotebook, in conformance with Section 01 33 29 SUSTAINABILITY REPORTING.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

In addition, submit in accordance with paragraph COORDINATED SUBMITTAL REVIEWS herein.

SD-02 Shop Drawings

Cords; G

Level 2 Wall Mounted EVSE; G

Level 2 Pedestal Mounted EVSE; G

SD-03 Product Data

Cords; G

SECTION 11 11 37 Page 4

Level 2 Wall Mounted EVSE; G

Level 2 Pedestal Mounted EVSE; G

SD-07 Certificates

Qualifications; G

Certified Installers; G

SD-08 Manufacturer's Instructions

Cords; G

Level 2 Wall Mounted EVSE; G

Level 2 Pedestal Mounted EVSE; G

SD-09 Manufacturer's Field Reports

Testing of Electrical Vehicle Supply Equipment; G

SD-10 Operation and Maintenance Data

Electrical Vehicle Supply Equipment, Data Package 3

SD-11 Closeout Submittals

OMSI Warranty; G

1.4 QUALITY CONTROL

1.4.1 Regulatory Requirements

In each of the publications referred to herein, consider the advisory provisions to be mandatory, as though the word, "shall" or "must" had been substituted for "should" wherever it appears. Interpret references in these publications to the "authority having jurisdiction," or words of similar meaning, to mean the Contracting Officer. Provide equipment, materials, installation, and workmanship in accordance with the mandatory and advisory provisions of NFPA 70 unless more stringent requirements are specified or indicated.

1.4.2 Standard Products

Provide materials and equipment that are products of manufacturers regularly engaged in the production of such products which are of equal material, design and workmanship and:

a. Have been in satisfactory commercial or industrial use for 2 years prior to bid opening including applications of equipment and materials under comparable circumstances and of similar size.

b. Have been on sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 2-year period.

c. Where two or more items of the same class of equipment are required, provide products of a single manufacturer; however, the component parts

SECTION 11 11 37 Page 5 of the item need not be the products of the same manufacturer unless stated in this section.

1.4.2.1 Qualifications

Products having less than a 2-year field service record will be acceptable if a certified record of satisfactory field operation for not less than 6000 hours, exclusive of the manufacturers' factory or laboratory tests, is furnished.

1.4.2.2 Material and Equipment Manufacturing Date

Provide products manufactured within 2 years prior to date of delivery to site. As a minimum, meet requirements of UL, where UL standards are established for those items, and requirements of NFPA 70 for all materials, equipment, and devices.

1.4.2.3 EVSE Installers

Submit documentation certifying that pertinent personnel are qualified for EVSE installation. The documentation must include installation experience on two projects of comparable size and scope of work.

1.5 WARRANTY

Provide equipment items supported by service organizations that are convenient to the equipment installation in order to render satisfactory service to the equipment within 24 hours of notification during the warranty period of the contract.

Provide warranty for Materials and Workmanship of EVSE: Two years.

PART 2 PRODUCTS

2.1 PRODUCT COORDINATION

Provide products and materials not considered to be ELECTRICAL VEHICLE SUPPLY EQUIPMENT and related accessories for power requirements as specified inthe socope of work.

2.2 ELECTRICAL VEHICLE SUPPLY EQUIPMENT

2.2.1 System Description

Electrical Vehicle Supply Equipment capable of charging multiple vehicles at Level 2.

2.2.2 Level 2 EVSE

2.2.2.1 Level 2 Wall Mounted EVSE

UL 2202, UL 2251, UL 2231-1, UL 2231-2, UL 2594. Type 2, SAE J1772 connector, 208 volt, .

2.2.2.2 Level 2 Pedestal Mounted EVSE

UL 2202, UL 2251, UL 2231-1, UL 2231-2, UL 2594. Type 2, SAE J1772 connector, 208 volt, .

SECTION 11 11 37 Page 6

2.2.3 Cords

UL 62.

a. 18 feet, minimum, UL rated charging cords with integral retractable cord management mechanism or separate cord management.

2.3 CONNECTOR HOLSTER DOCK

Provide connector holster dock to store charger plugs when not in use.

Holster construction consist of high strength injection molded plastic with temperature ratings of minus 30 deg C to 50 deg C. Provide holster to match EV plug.

2.4 PEDESTAL CONSTRUCTION

Provide corrosion resistant construction for outdoor use and continuous exposure to a marine environment. Pedestal shall be NEMA 4x Construction.

2.5 ACCESSORIES

a. Back-lit touch button interface keypad with audio feedback. LCD must display READY TO CHARGE, CHARGING, CHARGE COMPLETE, PAUSE-WAITING TO

CHARGE AND FAULT.

b. Daylight readable 64x480 active matrix LCD with auto brightness control.

c. Activation of EVSE upon identification utilizing , RFID.

e. Real-time energy measurement controls.

f. Fifteen minute energy measurement interval recording.

g. Time-of-day pricing capability.

h. Nuisance tripping avoidance and auto-re-closure features.

i. Cold Load Pickup (Randomized auto restart following power outage).

j. Provide minimum four keycards/barcodes/RFID keys for each charger to activate the charger and its data network.

k. EVSE must include automatic web-based tracking / metering and control connection via a cell phone service provider compatible with Electric Vehicle Management system.

The web-based application shall generate per vehicle kW usage and charging times based on user input intervals.

EVSE Electronic Data Interface shall capture and be capable of push and pull file transfer of the parameters listed below. Web-based control capability shall enable remote charger station administration and access control by the Government. Data must be User ID and Password protected.

(1) Kilowatt (kW) data report must be compatible Microsoft Excel (Version 2007 or higher).

(2) Must have option to limit usage to designated users with bar

SECTION 11 11 37 Page 7 code/key card type system (locked or open access).

(3) Manufacture control of EVSE is not allowed without prior written Government approval.

2.6 CAST-IN-PLACE CONCRETE

Concrete associated with electrical work for other than encasement of underground ducts shall be 4000 psi minimum 28-day compressive strength unless specified otherwise. .

2.7 MANUFACTURER'S NAMEPLATES

Each item of equipment shall have a nameplate bearing, as a minimum, the manufacturer's name, address, model number, and serial number securely affixed in a conspicuous place; the nameplate of the distributing agent will not be acceptable. Include additional information as applicable to fully identify the equipment. Nameplates shall be made of noncorrosive metal.

2.8 PAVEMENT MARKINGS

Provide pavement markings for the vehicle charging parking spots to indicate the restrictions for electrical vehicle parking.

2.9 ELECTRIC VEHICLE SUPPLY EQUIPMENT (EVSE) SIGNAGE

Provide signage Electrical Vehicle Supply Equipment per MUTCD and Base standards.

2.10 WHEEL STOPS AND BOLLARDS

Provide wheel stops or bollards in Electrical Vehicle parking spaces to provide protection for Electric Vehicle Supply Equipment.

PART 3 EXECUTION

3.1 INSTALLATION

Electrical installations shall conform to IEEE C2, NFPA 70, and to the requirements specified herein.

a. The EVSE installer must be certified by the manufacturer or a recognized training facility to perform the installation.

b. Provide chargers per manufacturer instructions and recommendations.

EVSE must be programmed and configured by a certified installer.

3.2 GROUNDING

NFPA 70 and IEEE C2, except provide grounding systems with a resistance to solid earth ground not exceeding 25 ohms.

3.2.1 Grounding Electrodes

Provide driven ground rods as specified in Section 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION. Connect ground conductors to the upper end of ground rods by exothermic weld or compression connector. Provide compression connectors at equipment end of ground conductors.

SECTION 11 11 37 Page 8

3.3 FIELD APPLIED PAINTING

Where field applied painting of enclosures is required to correct damage to the manufacturer's factory applied coatings, provide manufacturer's recommended coatings and apply in accordance with manufacturer's instructions.

3.4 FIELD FABRICATED NAMEPLATE MOUNTING

Provide number, location, and letter designation of nameplates as indicated. Fasten nameplates to the device with a minimum of two sheet-metal screws or two rivets.

3.5 FOUNDATION FOR EQUIPMENT AND ASSEMBLIES

3.5.1 Exterior Location

Mount on concrete slab, unless otherwise indicated. The slab shall be at least 8 inches thick, reinforced with a 6 by 6 - W2.9 by W2.9 mesh placed uniformly 4 inches from the top of the slab. Slab shall be placed on a 6 inch thick, well-compacted gravel base. Top of concrete slab shall be approximately 4 inches above the finished grade. Edges above grade shall have 1/2 inch chamfer. The slab shall be of adequate size to project at least 8 inches beyond the equipment. Provide conduit turnups and cable entrance space required by the equipment to be mounted. Seal voids around conduit openings in slab with water- and oil-resistant caulking or sealant. Seals shall be of sufficient strength and durability to protect all energized live parts of the equipment from rodents, insects, or other foreign matter. Cut off and bush conduits 3 inches above slab surface.

3.6 OPERATION AND MAINTENANCE

3.6.1 Operation and Maintenance Training

Conduct a training course for the members of the operating staff as designated by the Contracting Officer. Make the training period consist of a total of 4 hours for Level 1 or level 2 and 8, hours for DC Fast Charge of normal working time and start it after all work specified herein is functionally completed and the Performance Tests have been approved.

Conduct field instruction that covers all of the items contained in the Operation and Maintenance Manuals as well as demonstrations of routine maintenance operations. Submit the proposed On-site Training Materials and schedule concurrently with the Operation and Maintenance Manuals and at least 30 days prior to conducting the training course.

3.7 FIELD QUALITY CONTROL

3.7.1 Testing of Electrical Vehicle Supply Equipment

Provide testing of Electrical Vehicle Supply Equipment with test equipment per current standards and manufacturers recommendations. Provide data submittal indicating time of charge and kW level used.

3.7.2 Performance of Acceptance Checks and Tests

Perform in accordance with the manufacturer's recommendations and include the following visual and mechanical inspections and electrical tests.

Submit reports, including acceptance criteria.

SECTION 11 11 37 Page 9

3.7.2.1 EVSE

a. Visual and mechanical inspection.

(1) Compare equipment nameplate data with specifications and approved shop drawings.

(2) Inspect physical and mechanical condition. Check for damage.

(3) Inspect anchorage, alignment, and grounding.

(4) Perform specific inspections and mechanical tests as recommended by manufacturer.

b. Electrical Tests

(1) Perform resistance measurements through all bolted connections with low-resistance ohmmeter.

(2) Verify voltage levels.

(3) Check ground fault circuit interrupt.

(4) Check pilot signal detection and verification.

(5) Verify current limit.

(6) Verify operation of alarms.

(7) Verify EVSE Electronic Data Interface.

Values of test shall be within limits of manufacturer's recommendations.

-- End of Section --

SECTION 11 11 37 Page 10