207_208_26 24 13.pdf

P-447 DD4 & Pier 3 Moderinization 204820999

SECTION 26 24 13

SWITCHBOARDS

05/15

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 in the text by the basic designation only.

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI C12.1 (2008) Electric Meters Code for Electricity Metering

ASTM INTERNATIONAL (ASTM)

ASTM A123/A123M (2017) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A153/A153M (2016) Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

ASTM A240/A240M (2017) Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM A653/A653M (2017) Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

ASTM A780/A780M (2009; R 2015) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

ASTM D149 (2009; R 2013) Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies

ASTM D1535 (2014) Specifying Color by the Munsell System

ASTM D709 (2017) Standard Specification for Laminated Thermosetting Materials

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 100 (2000; Archived) The Authoritative Dictionary of IEEE Standards Terms

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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 C37.90 (2005; R 2011) Standard for Relays and Relay Systems Associated With Electric Power Apparatus

IEEE C37.90.1 (2013) Standard for Surge Withstand Capability (SWC) Tests for Relays and Relay Systems Associated with Electric Power Apparatus

IEEE C57.12.29 (2014) Standard for Pad-Mounted Equipment

- Enclosure Integrity for Coastal Environments

IEEE C57.13 (2016) Requirements for Instrument Transformers

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

ANSI/NEMA PB 2.1 (2013) General Instructions for Proper Handling, Installation, Operation and Maintenance of Deadfront Distribution Switchboards Rated 600 V or Less

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

NEMA PB 2 (2011) Deadfront Distribution Switchboards

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 1558 (1999; Reprint Jun 2017) UL Standard for Safety Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear

UL 1581 (2001; Reprint Dec 2017) UL Standard for Safety Reference Standard for Electrical Wires, Cables, and Flexible Cords

UL 44 (2018) UL Standard for Safety Thermoset-Insulated Wires and Cables

UL 467 (2013; Reprint Jun 2017) UL Standard for Safety Grounding and Bonding Equipment

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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 RELATED REQUIREMENTS

Section 26 08 00 APPARATUS INSPECTION AND TESTING applies to this section, with the additions and modifications specified herein.

1.3 DEFINITIONS

Unless otherwise specified or indicated, electrical and electronics terms used in these specifications, and on the drawings, are as defined in

IEEE 100.

1.4 SUBMITTALS

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

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-02 Shop Drawings

Switchboard Drawings; G

SD-03 Product Data

Switchboard; G

Draw-out Circuit Breakers; G

Circuit Breaker Trip Units; G

Breaker Interface Module; G

Protocol Converter; G

Protective and Auxiliary Relays; G

Instrument Transformers; G

Batteries and Battery Charger; G

Battery Racks; G

Test Blocks/Trip Blocking Test Switches; G

Circuit Breaker Control Switches; G

Circuit Breakers; G

SIS Control Wire; G

MIMIC Panel; G

Mode Selector Control Switch; G

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Infrared Window Viewing Panes; G

Fiber Optic Transceivers; G

Terminal Boards; G

ARC FLASH Warning and Available Fault Current Labels; G

SD-05 Design Data

Capacity Calculations for Battery Charger and Batteries; G

Programming Documents for the Programming of the Relays; G

SD-06 Test Reports

Switchboard Design Tests; G

Switchboard Production Tests; G

Acceptance Checks and Tests; G

SD-07 Certificates

Switchboard Design Tests; G

Switchboard Production Tests; G

Draw-out Circuit Breakers Current Limiting Documentation; G

SD-09 Manufacturer's Field Reports

Equipment Test Schedule; G

SD-10 Operation and Maintenance Data

Switchboard Operation and Maintenance, Data Package 5; G

SD-11 Closeout Submittals

Warranty; G

As-Built Drawings; G

As-Built Cable Schedule Drawings; G

As-Built Interconnection Diagram; G

Assembled Operation and Maintenance Manuals; G

Equipment Test Schedule; G

Required Settings; G

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1.5 QUALITY ASSURANCE

1.5.1 Design Data

1.5.1.1 Battery Power Calculations

Submit Capacity Calculations for Battery Charger and Batteries.

Calculations for the battery and associated charger indicating the basis used in defining loads, selecting cell types, and determining the battery ampere-hour capacity and physical size. Capacity calculations shall include details and detailed calculations for the all the loads on the VDC system, including explanatory data. Calculations shall demonstrate that the output voltage and current provided are adequate for the substation requirements.

Use concepts from IEEE 485 and IEEE standard 946 and provide additional load requirements as indicated. Note that the methodology used in the calculations shall be fully explained in the submittal. Values used in calculations shall include detailed explanatory information and additional calculations as required to complete the explanatory information.

The batteries shall have a minimum ampere-hour capacity equal to 125 percent of the station's direct-current requirements adequate for a 24-hour period which shall include the normal continuous loads, intermittent loads and momentary loads. Intermittent/momentary load capacity shall be adequate so that a minimum of three openings and three closings of each of the draw-out circuit breaker can be performed at end of the 24-hour period.

The Intermittent/ Momentary load capacity shall be adequate to rack-out each draw-out circuit breaker at the end of the 24-hour period.

Calculations shall verify that battery capacity exceeds station DC power requirements and that the charger has the capacity to support the battery requirements. The calculations shall be approved or rejected by the government within 20 working days after receipt. If rejected, the contractor shall resubmit the data for approval or rejection within 20 working days after receipt of re-submittal requirement. The Government shall have 15 working days for approval or rejection of a re-submittal.

1.5.1.2 Programming Documents for the Programming of the Relays

Submit Programming Documents to be used for the programming of the relays 45 days working days before contractor proposed date of programming for validation by the government. Programmed Protection setting of the relays shall conform to the approved Coordinated Power System Protection study.

The Programming Documents shall be approved or rejected by the government within 20 working days after receipt. If rejected, the contractor shall resubmit the data for approval or rejection within 20 working days after receipt of re-submittal requirement. The Government shall have 15 working days for approval or rejection of a re-submittal. In addition, before the documents are submitted to the government for approval, the manufacturer of the equipment item shall certify that the programming is correct per the requirements of the contract and provide review comments of the programming documents for government records.

1.5.1.3 Switchboard Drawings

The government shall have 20 working days to review the initial submittal.

If a submittal is rejected by the government the contractor shall have 20 working days for re-submittals after receipt of notice from the government that a re-submittal is required.

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Drawings shall include, but are not limited to, the following:

a. Outline drawings including front elevation, section views, footprint, and overall dimensions.

b. Bus configuration, including dimensions and ampere ratings of bus bars.

c. Maximum short-curcuit bracing.

d. Nameplate data (manufacturer's name, catalog number, and ratings).

e. Circuit breaker and switch type(s), interrupting ratings, and trip devices including available settings.

f. Elementary diagrams and wiring diagrams with terminals identified and indicating prewired interconnections between items of equipment and the interconnection between the items.

g. Complete One-line and Three-line diagrams, including switches, circuit breakers, current and potential transformers, relays, meters, control power transformers, ground detector and trip units. Note that circuit number identification in the shop drawings shall match the circuit numbers in this RFP.

h. Manufacturer's instruction manuals and published time-current curves (on full size 11 x 17 inches logarithmic paper) of circuit breakers.

i. Details of an Auxiliary dc control power system; Which shall include VDC Control Breakers and Panel; a complete one-line diagram of all VDC circuits, and shall include the upstream over-current protection, VDC panel, branch circuits, wiring and all equipment items. In addition, for the Auxiliary dc control power system provide coordination curves to determine the required settings of protective devices to assure selective coordination and adequate protection for fault current.

j. VDC panel schedule with load calculations.

k. Provide a block diagram of switchboard protective relaying and powering monitoring devices, and communication with SCADA system (including communication parameters, SCADA inputs and outputs with port connections identified on the drawing, wiring, and configurations options).

l. Provide a complete point-to-point interconnection wiring diagram between substation equipment items such as, but not limited to, the SCADA termination cabinet,Mimic Manual Control Interface Panel, Power circuit breaker,circuit breaker Bell Alarm and shunt trip connections, circuit breaker trip units, Circuit Breaker Interface Module, Communication Protocol and interface converters and auxiliary power supplies, Mode Selector Control Switch, Switchboard Protective and Auxiliary Relays, Ship Trip Receptacle, Ground Detector, service transformer protective relays, Main Bus relay and other equipment as shown or indicated. Include on the diagrams the identification of terminal boards where applicable and the terminals of all equipment.

Indicate the function of each control circuit clearly on the diagram.

m. Provide drawings showing seismic-force-restraint and related calculations. Drawings and calculations shall be prepared by a professional structural engineer experienced in the area of seismic

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force restraints.

n. Provide a complete detailed legend that clearly identifies of all definitions, symbols and abbreviations used in the drawings.

o. Provide control circuit drawings (includes diagrams and drawings in referenced “Switchboard Shop Drawings”) for local manual circuit breaker control switches.

p. Provide VDC circuit breaker (no fuses) over-current protection in control circuits, except provide a non-automatic trip molded case switch for each circuit breaker control trip circuit.

1.5.1.4 Mimic Panel

Shop Drawings shall include, but are not limited to the following:

a. A dimensioned outline drawing with front, top, and side views.

b. Drawings shall show future expansion capabilities.

c. Layout of Panel which shall include the following: Equipment items located on the switchboard One Line diagram with items identified per the RFP. Equipment identification shall include as a minimum, circuit numbers and circuit breaker location, and embedded Draw-out Circuit Breaker Control Switches and indication lights per paragraph 2.6.4 “MIMIC Panel”.

d. Wiring diagrams with terminals identified.

e. Proposed control sequence (control logic level diagrams) which shall include schematic and block diagrams.

Include wiring diagrams and installation details of equipment indicating proposed location, layout and arrangement, panels, accessories, conduits, and other items that must be shown to ensure a coordinated installation. Identify circuit terminals on wiring diagrams and indicate the internal wiring for each item of equipment and the interconnection between each item of equipment. Indicate on the drawings adequate clearance for operation, maintenance, and replacement of operating equipment devices. Include the nameplate data, size, and capacity on submittal. Also include applicable federal, military, industry and technical society publication references on submittals.

1.5.2 Test Plan

1.5.2.1 Switchboard Equipment Test

Addition to the tests required elsewhere in this specification, submit a Test Plan 60 working days before proposed testing date for the testing of the following: functionally of each lockout Relay (86, GR1, GR2, ST1 ST2) with all trip scenarios, ground detector, metering communication, Circuit Breaker Interface Module, Protocol and interface Converters, auxiliary power supplies, all Main Bus Relay functions and all overcurrent protection devices for Direct-Current systems items including branch circuit breakers.

Test functionally of all Switches (trip block test, SCADA control switch, etc.) with related responses recorded. Government approval of the plan is required. The Government shall have 15 working days to approve or reject the plan. If rejected the contractor shall make corrections and resubmit

SECTION 26 24 13 Page 7 the plan.

1.5.3 Certificates

1.5.3.1 Control Wiring Installer Qualifications

Certification of the qualification of the Control Wiring Installer shall be submitted, for approval, 60 days before control wiring is to be installed in the medium voltage switchboard. The certification shall include the training, and experience of the individual on the specific type of control circuits to be provided under this contract. The certification shall indicate that the individual has had three or more years, recent experience installing control circuits in low voltage switchboard with Microprocessor relays. Experience shall include the interconnection wiring with SCADA equipment. The certification shall also list a minimum of three Substations that have been in operation for more than one year where the related work was performed.

The Contracting Officer reserves the right to require additional proof of competency or to reject the individual and call for certification of an alternate control wiring installer.

1.5.3.2 Draw-out Circuit Breakers Current Limiting Documentation

Provide certification from manufacturer that the draw-out circuit breakers are current limiting. A current-limiting circuit breaker is one that has been certified by UL to limit the let-thru I^2t (I squared t) during a fault to not more than the I^2t available during a half-cycle of prospective symmetrical short-circuit current.

1.5.4 Closeout Submittals

1.5.4.1 As-Built Drawings

The As-Built Drawings shall be a record of the construction as installed.

The drawings shall include the information shown on the contract and shop drawings and interconnection diagrams, as well as deviations, modifications,and changes from the drawings and diagrams, however minor as well as updated complete shop drawings and interconnection diagrams. The as-built drawings shall be a full sized set of prints marked to reflect deviations, modifications, and changes. The as-built drawings shall be complete and show the location, size, dimensions, part identification, and other information. Additional sheets may be added. The as-built drawings shall be jointly inspected for accuracy and completeness by the Contractor's quality control representative and by the Contracting Officer prior to the submission. Upon completion of the work, the Contractor shall provide one full sized set of hand annotated red-line prints to the Contracting Officer for approval, or at the Contractor's option, the drawings may be CAD drawings showing the revisions. CAD drawings shall follow the Navy’s CAD standards and be saved in AutoCAD 2010 or earlier format. If upon review, the as-built drawings are found to contain errors and/or omissions or are not legible or usable, they will be returned to the Contractor for correction. The Contractor shall correct and return the as-built drawings to the Contracting Officer for approval within 10 working days from the time the drawings are returned to the Contractor.

1.5.4.2 As-Built Cable Schedule Drawings

The as-built cable schedule drawings shall include the update on the

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Manhole Cable Schedule drawings for Manholes/Hand-holes in which cabling shall be installed of removed under this project. Record the following: 1) Spare conduit information (size and location on each face of the manhole by duct number). 2) For existing circuits that are identified by cable tags in the manhole or hand-hole, record circuit number, size and number of conductors and record the duct size and location. Upon completion of the work, the Contractor shall provide two sets of hand annotated redlined prints to the Contracting Officer for approval, or at the contractor’s option, the drawings may be CAD drawings in an electronic file showing the revisions. If CAD drawings are provided, include only one drawing per sheet. If upon review of the submittal, the as-built cable schedule drawings are found to contain errors and/or omissions or are not legible or usable, they will be returned to the Contractor for correction. Upon receipt, the Contractor shall correct and return the as-built drawings to the Contracting Officer for approval within 10 calendar days.

1.5.4.3 As-Built Interconnection Diagram

Provide a complete As-Built point-to-point interconnection wiring diagram between substation equipment items such as, but not limited to, the Automation Controller/Data Concentrator, SCADA termination cabinet, Mimic Manual Control Interface Panel, circuit breaker/circuit breaker Bell Alarm and shunt trip connections, circuit breaker trip units, Communication Protocol and interface converters and auxiliary power supplies as applicable, Mode selector control switch, Ship Trip Receptacle, Ground Detector, service transformer protective relays, lockout relays, Main Bus relay and other equipment as shown or indicated. Include on the diagrams the identification of terminal boards where applicable and the terminals of all equipment. Indicate the function of each control circuit clearly on the diagram.

1.5.5 Damaged Switchboard

Installation of Damaged switchboard shall not be accepted by the Contracting Officer. Switchboard shall be bubble-wrapped during shipment from Manufacture’s plant to installation site and carefully handled at the site to avoid damaged to switchboard enclosure.

1.5.6 Product Data

Include manufacturer's information on each submittal for each component, device and accessory provided with the switchboard including:

a. Circuit breaker type, interrupting rating, and trip devices, including available settings.

b. Manufacturer's instruction manuals and published time-current curves (in electronic format) of the main secondary breaker and largest secondary feeder device.

1.5.7 Switchboard Drawings

Include wiring diagrams and installation details of equipment indicating proposed location, layout and arrangement, control panels, accessories, piping, ductwork, and other items that must be shown to ensure a coordinated installation. Identify circuit terminals on wiring diagrams and indicate the internal wiring for each item of equipment and the interconnection between each item of equipment. Indicate on the drawings adequate clearance for operation, maintenance, and replacement of operating

SECTION 26 24 13 Page 9 equipment devices. Include the nameplate data, size, and capacity on submittal. Also include applicable federal, military, industry, and technical society publication references on submittals. Include the following:

a. One-line diagram including breakers, fuses, current transformers, and meters.

b. Outline drawings including front elevation, section views, footprint, and overall dimensions.

c. Bus configuration including dimensions and ampere ratings of bus bars.

d. Markings and NEMA nameplate data, including fuse information (manufacturer's name, catalog number, and ratings).

e. Circuit breaker type, interrupting rating, and trip devices, including available settings.

f. Wiring diagrams and elementary diagrams with terminals identified, and indicating prewired interconnections between items of equipment and the interconnection between the items.

g. Manufacturer's instruction manuals and published time-current curves (in electronic format) of the main secondary breaker and largest secondary feeder device. Use this information (designer of record) to provide breaker settings that ensures protection and coordination are achieved. For Navy installations, provide electronic format curves using SKM's Power Tools for Windows device library electronic format or EasyPower device library format depending on installation modeling software requirements.

1.5.8 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.

1.5.9 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 similar 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 of the item need not be the products of the same manufacturer unless

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1.5.9.1 Alternative 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.

1.5.9.2 Material and Equipment Manufacturing Date

Products manufactured more than 1 year prior to date of delivery to site are not acceptable.

1.6 MAINTENANCE

1.6.1 Switchboard Operation and Maintenance Data

Submit Operation and Maintenance Manuals in accordance with Section 01 78 23

OPERATION AND MAINTENANCE DATA.

1.6.2 Assembled Operation and Maintenance Manuals

Assemble and securely bind manuals in durable, hard covered, water resistant binders. Assemble and index the manuals in the following order with a table of contents:

a. Manufacturer's O&M information required by the paragraph SD-10, OPERATION AND MAINTENANCE DATA.

b. Catalog data required by the paragraph SD-03, PRODUCT DATA.

c. Drawings required by the paragraph SD-02, SHOP DRAWINGS.

d. Prices for spare parts and supply list.

e. Design test reports.

f. Production test reports.

1.7 WARRANTY

Provide equipment items that are supported by service organizations reasonably convenient to the equipment installation in order to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of the contract.

PART 2 PRODUCTS

2.1 PRODUCT COORDINATION

Products and materials not considered to be switchboards and related accessories are specified in Section 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION, and Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM.

2.2 SWITCHBOARD

NEMA PB 2 and UL 891.

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2.2.1 Ratings

Provide equipment with the following ratings:

a. Voltage rating: 480Y/277 volts AC, as indicated.

b. Continuous current rating of the main bus: as indicated.

c. Short-circuit current rating: as indicated.

d. UL listed and labeled.

2.2.2 Construction

Provide the following:

a. Switchboard: consisting of one or more vertical sections bolted together to form a rigid assembly and front and rear aligned.

b. All circuit breakers: front accessible.

c. Front and rear aligned switchboards: rear accessible load connections.

d. Where indicated, "space for future" or "space" means to include a vertical bus provided behind a blank front cover. Where indicated, "provision for future" means full hardware provided to mount a breaker suitable for the location.

e. Completely factory engineered and assembled, including protective devices and equipment indicated with necessary interconnections, instrumentation, and control wiring.

2.2.2.1 Enclosure

Provide the following:

a. Enclosure: NEMA ICS 6 Type 3R fabricated entirely of 12 gauge ASTM A240/A240M type 304 or 304L stainless steel.

b. Enclosure: bolted together with removable bolt-on side and hinged rear covers, and sloping roof downward toward rear.

c. Front and rear doors: provided with stainless steel padlockable vault handles with a three point catch.

d. Bases, frames and channels of enclosure: corrosion resistant and fabricated of ASTM A240/A240M type 304 or 304L stainless steel.

e. Base: includes any part of enclosure that is within 3 inches of concrete pad.

f. Galvanized steel: ASTM A123/A123M, ASTM A653/A653M G90 coating, and ASTM A153/A153M. Galvanize after fabrication where practicable.

g. Paint color: ASTM D1535 light gray No. 61 or No. 49 over rust inhibitor.

h. Paint coating system: comply with IEEE C57.12.29 for stainless steel.

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Provide Infrared Window Viewing Panes for each Draw-Out circuit breaker. Install to allow the use of an infrared camera or thermal imager direct line of site to inspect electrical connections without requiring the opening of panels and doors. The IR lenses shall be clear polymer and provide for infrared photography of switch gear components via the IR lens and visual inspection without the need to open the cabinet door. The windows shall be UL Listed and shall be a minimum 4 inches diameter.

2.2.2.2 Bus Bars

Provide the following:

a. Bus bars: copper with silver-plated contact surfaces.

(1) Phase bus bars: insulated with a tape wrap or insulating sleeve providing a minimum breakdown voltage of 16,000 volts per ASTM D149.

(2) Neutral bus: rated 100 percent of the main bus continuous current rating.

b. Make bus connections and joints with hardened steel bolts.

c. Main-bus (through bus): rated at the full frame size ampacity of the main circuit breaker throughout the switchboard.

d. Minimum one-quarter by 2 inch copper ground bus secured to each vertical section along the entire length of the switchboard.

2.2.2.3 Main Section

Provide the main section for industrial power substations consisting of an individually mounted drawout air power circuit breaker with current-limiting fuses.

2.2.2.4 Distribution Sections

Provide the distribution sections consisting of individually mounted, insulated-case circuit breakers for industrial power substations and group mounted molded-case circuit breakers for SWBD 43A and SWBD 43D as indicated.

2.2.2.5 Auxiliary Sections

Provide auxiliary sections consisting of indicated instruments, metering equipment, control equipment, transformer, and current transformer compartments as indicated.

2.2.2.6 Handles

Provide handles for individually mounted devices of the same design and method of external operation. Label handles prominently to indicate device ampere rating, color coded for device type. Identify ON-OFF indication by handle position and by prominent marking.

2.2.3 Protective Device

Provide main and branch protective devices as indicated.

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2.2.3.1 Insulated-Case Breaker for Industrial Power Substations

Provide the following:

a. UL 489. UL listed and labeled, 100 percent rated main breaker and branch breakers, electrically operated, low voltage, insulated-case circuit breaker, with a short-circuit current rating as indicated at 480 volts.

b. Breaker frame size: as indicated.

c. Series rated circuit breakers are unacceptable.

2.2.3.2 Molded-Case Circuit Breakers for SWBD 43A and SWBD 43D

Provide the following:

a. UL 489. UL listed and labeled, standard rated branch breakers, manually operated, low voltage molded-case circuit breaker, with a short-circuit current rating as indicated at 480 volts.

b. Breaker frame size: as indicated.

c. Series rated circuit breakers are unacceptable.

2.2.4 Drawout Breakers for Industrial Power Main Circuit Breakers

Provide drawout breakers as indicated. Equip drawout breakers with disconnecting contacts, wheels, and interlocks for drawout application.

Provide main, auxiliary, and control disconnecting contacts with silver-plated, multifinger, positive pressure, self-aligning type. Provide each drawout breaker with four-position operation with each position clearly identified by an indicator on the circuit breaker front panel as follows.

a. Connected Position: Primary and secondary contacts are fully engaged.

Breaker must be tripped before racking into or out of position.

b. Test Position: Primary contacts are disconnected but secondary contacts remain fully engaged. This position allows complete test and operation of the breaker without energizing the primary circuit.

c. Disconnected Position: Primary and secondary contacts are disconnected.

d. Withdrawn (Removed) Position: Places breaker completely out of compartment, ready for removal. Removal of the breaker actuates assembly that isolates the primary stabs.

2.2.5 Electronic Trip Units

Equip main and distribution breakers as indicated with a solid-state tripping system consisting of three current sensors and a microprocessor-based trip unit that provides true rms sensing adjustable time-current circuit protection. Include the following:

a. Electronic Trip Units.

Provide a Microprocessor-based trip unit per the following for each draw-out power circuit breaker:

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Equip breakers with a tripping system consisting of three solid-state current sensors and a microprocessor-based trip unit that will provide true rms sensing adjustable time-current circuit protection. The ampere rating of the current sensors shall be as the breaker frame rating. The trip unit ampere rating shall be as indicated. The electronic trip units shall have the following features:

1. Shall have LED indication of cause of circuit breaker trip.

2. Shall have long delay pick-up and time settings, short delay pick-up and time settings, instantaneous settings, and ground fault settings.

3. Shall have the capability be remotely opened and closed by the SCADA system.

4. Shall have the capability of selective coordination.

5. Auxiliary contacts/provisions as required to meet the RFP, including requirements for communication of remote control, monitoring and metering via a network twisted pair.

6. Energy monitoring for peak demand, present demand, and energy consumption.

7. Metering for individual phase currents and ground current.

8. Metering for individual phase voltage (main and generator breaker only).

9. Provision for integral testing of all protective functions.

10. Shall have the capability to communicate with SCADA the information displayed by the Breaker Interface Module as noted below via communication module(s) as required.

11. Trip Units for power circuit breakers shall be supplied power from Station Batteries to ensure continuous operation during a power outage.

12. Main and Generator circuit breaker SCADA functions as indicated on drawings shall be communicated via the main bus relay to SCADA.

13. Circuit Breaker Trip Units shall have an arc-flash reduction maintenance system mode. Provide indication via SCADA when a circuit breaker arc-flash reduction mode is activated. Provide a amber IP68 LED indication light mounted above the enclosure that is illuminated when any circuit breaker within a unit substation is activated.

14. Provide trip units with ground fault protection. Ground fault protection shall be able to be disabled without the need to remove circuit breaker components. Provide a switch that is accessible to the operator without opening switchboard doors to disable the ground fault function of the trip units. Label the switch to indicate the circuit the ground fault disable switch applies to.

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b. Breaker Interface Module (BIM)

Provide a microprocessor based, door-mounted, electronic monitor that communicates to remote devices via a network twisted pair cable. The electronic monitor shall monitor and display parameters of the associated unit substation switchboard circuit breakers. The electronic system monitor shall have the following features:

1. Eight-digit alphanumeric display for indication of the following data:

a) Cause of circuit breaker trip

b) Trip current

c) Phase and ground current

d) Energy parameters

2. Indication for circuit breakers status; tripped, open, closed.

3. A communication module to interface with the Automation Controller/Data Concentrator as required for communication for the above information (1. & 2.) with SCADA.

c. Protocol Converter

Provide Protocol Converters as required for compatible communication between Electronic Trip Units and Automation Controller/Data Concentrator. Protocol Converter shall be powered by 48 VDC Station Batteries.

d. Auxiliary Devices

1. Interface Converter

Provide Interface Converters as required to allow for the interconnection/communication between different type devices.

2. Auxiliary Power Supply

Provide Auxiliary Power Supplies as required for communication devices to be powered by 48 VDC Station Batteries that require a different control voltage (e.g. 24 VDC).

e. Equip individual circuit-breaker compartments with draw out disconnecting contacts, rails, wheels and a cell interlock to prevent moving the removable element into or out of the "connected" position while the circuit breaker is closed. The main, auxiliary, and control disconnecting contacts shall be silver-plated, multi-finger, positive pressure, self-aligning type. Each draw-out breaker shall be provided with four-position operation. Each position shall be clearly identified by an indicator on the circuit breaker front panel.

1. Connected Position: Primary and secondary contacts are fully engaged. Breaker must be tripped before racking into or out of position.

2. Test Position: Primary contacts are disconnected but secondary

SECTION 26 24 13 Page 16 contacts remain fully engaged. Position shall allow complete test and operation of the breaker without energizing the primary circuit.

3. Disconnected Position: Primary and secondary contacts are disconnected.

4. Withdrawn (Removed) Position: Places breaker completely out of compartment, ready for removal. Removal of the breaker shall actuate assembly that isolates the primary stabs. Breaker compartment door shall be fully closable when the circuit breaker in the position ready for removal.

f. Draw-Out Compartment Shutters

1. Provide draw-out compartment shutters to protect operators from accidental contact with breaker stabs when the breaker is withdrawn from its cubicle on all breaker cubicles in the lineup.

2.2.5.1 Protective Relays

2.2.5.1.1 Auxiliary Relays

Relays shall conform to IEEE C37.90 and IEEE C37.90.1. Provide as required to implement protective functions and interlocking as indicated. Auxiliary relays shall have contacts rated to carry 30 amperes for one minute and 12 ampere continuously. Coils shall be a long-life design with a projected service life of 40 years.

a. Lockout relays (device 86): Provide hand reset, electrically tripped, high-speed auxiliary relays with Transition times of less than 8mSec (less than 1/2 cycle). Each relay shall be provided with the number of contacts required to perform the indicated function and, in addition, shall have a minimum of two spare normally closed contacts and two spare normally open contacts. Each lockout relay (LOR) shall be provided with mechanical Flag to provide indication when trip occurs as well as one amber LED light for indication when the relay is in the reset position. LOR shall include Push-to-Test switch.

1. Bus Differential Lockout Relays shall be wired to trip the remote primary over-current protection device and all secondary power circuit breakers as indicated and prohibit closing of the circuit breakers or other overcurrent protection devices by local and remote controls until the (LOR) has been reset by hand to its normal position.

2. Group Ship-Trip Lockout Relay shall be wired where indicated for shunt tripping of circuit breakers in group and prohibit closing of the circuit breakers by local and remote controls until the (LOR) has been reset by hand to its normal position. Provide a red placard with white letters to indicate the operation of the key interlocks. A complete set of keys shall be on hand at the time of commissioning, training government personnel, and the keys shall be turned over to the government.

b. Group Trip Auxiliary Relays and other Auxiliary Relays.

1. Auxiliary relays used for tripping circuit breakers shall be multi-contact, high-speed relays operating in one-half cycle or

SECTION 26 24 13 Page 17

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less.

2. Auxiliary relays for functions other than tripping circuit breakers shall be normal-speed relays operating in two cycles or less.

2.2.6 Metering

Provide meters for Compatibility and interface with the existing system/Data Acquisition servers. New AMI panel mounted meters shall be per the design drawings and Section 26 27 14.00 20, ELECTRICITY METERING.

Contractor is to retain existing AMI meter communication system at Dry Dock #2, including the antenna, Ethernet switches and power supplies for communication to the server in B/900. Provide new equipment as required. New Ethernet switches shall be per specification Section 26 70 00, SCADA. New meters shall be hard wired to existing antenna site. Coordinate meter connection site at Building B900 with the Contracting Officer. Relocate existing antenna if required. Provide all cables and equipment necessary to connect metering systems to existing AMI metering system. The contractor shall provide programming for the meters and programming of the existing Data Acquisition servers for the functionally of the system.

2.2.7 Instrument Transformers

IEEE C57.13. Instrument transformers shall be configured for mounting in/on the device to which they are applied. Polarity marks on instrument transformers shall be visually evident and shown on shop drawings. Instrument transformers used for AMI Metering shall be in accordance with Section 26 27 14.00 20, ELECTRICITY METERING.

a. Current transformers used for relaying shall be single ratio-type and shall be Y-Y design, and shall have a relaying accuracy class rating of not less than C-200.

b. Potential transformers: Transformers shall be delta/delta design, 60 Hz, with voltage ratings and ratios as indicated. Potential transformers shall have with primary and secondary circuit breaker protection. Voltage transformer compartments shall have hinged doors.

2.2.8 Pilot and Indicating Lights

Provide Light Emitting Diodes (LED) type.

2.2.9 Auxiliary Section(s)

The auxiliary section(s) shall have a hinged front panel, a, three-phase, three-wire main bus and connections, a ground bus, DC Bus, necessary terminal blocks, test switches, wiring and control buses/panel-boards and circuit breakers, control power transformers, interface wiring cabinet, batteries and charger and all other necessary related equipment items as required.

2.2.9.1 Control Power Transformer

Provide control power transformer section in switchboard in accordance with UL 1558 and as indicated. The transformer and section shall be suitable for the installation. Transformer capacity shall be sufficient for heaters, SECTION 26 24 13 Page 18 control, lighting and miscellaneous loads (25 KVA minimum). In addition the Transformer shall conform to the requirements of Section 26 20 00, INTERIOR DISTRIBUTION SYSTEM, “Transformers”.

2.2.9.2 Auxiliary and Control Panelboards

Provide Panel-boards with copper bussing. Panel-boards shall comply with UL 50 and UL 67 and spec Section 26 20 00. Provide a main circuit breaker in each panel-board and circuit breakers for individual branch circuits.

Molded case Circuit Breakers shall conform to UL 489 per spec Section 26 20 00. Provide updated panel schedules on working as-built marked prints.

2.2.9.3 Station Batteries and Charger

Provide station batteries and charger, suitable for the requirements of the transformer protective relays, switchboard and draw-out circuit breakers, controls and related requirements. Batteries shall be voltage indicated, valve-regulated lead-acid (VRLA), sealed, totally absorbed electrolyte, maintenance free type.

a. Station battery bank shall be provided with a manual transfer switch for connection of a temporary battery bank as required during testing of installed station batteries. Connection shall be make-before-break.

b. VRLA (valve-regulated lead-acid) Batteries. The batteries shall consist of the required number of cells interconnected with proper connectors provided by the battery manufacturer to provide a nominal battery rating of 48 volts or as indicated. Rubber or plastic numerals, of at least 1 inch in height, shall be provided by the battery manufacturer for field attachment to permit proper cell identification. The battery shall have an ampere-hour capacity equal to at least 125 percent of the station's direct-current requirements including normal continuous loads plus intermittent and momentary loads. Normal continuous load capacity shall be adequate for an 8-hour period. Intermittent load capacity shall be adequate so that at least three openings and three closings of each of the stations associated circuit breakers.

c. Battery circuits: Shall be ungrounded. Batteries shall be top terminal, with an automated helium leak detection system, computer controlled "fill by weight" acid filler, a temperature controlled water bath formation process, and integrated flash-arrester ultrasonically welded into cover, side-wall design to maintain structural integrity in higher operating temperatures. Individual strings of batteries shall be separately protected by a dedicated circuit breaker. Batteries shall have high-compression absorbent glass mat technology with greater than 99 percent recombination efficiency, high-tin, calcium, silver, lead positive plate design for maximum service float life; The battery shall be designed for continuous float operation @50° F (10°C).The battery shall be designed to allow for positive plate growth of up to 8% without damage to case and cover or effect post seal integrity. Battery post shall be 4 sided, cross-drilled lead plated copper with a minimum connection contact surface area of .569 cu in for a single connector and 1.138 cu in total for a multiple connector configuration. The battery post shall be epoxy-sealed to ensure a leak tight seal; burned bushing post seal is not acceptable. The post seal shall be designed and tested for a 20

SECTION 26 24 13 Page 19 year life. Case and cover material shall be flame-retardant polypropylene - UL 94 V-0 / > 28% Limited Oxygen Index (LOI). Case to cover to be heat sealed and 100% leak tested.

d. Battery charger: Shall be Microprocessor-Controlled type and comply with UL 1564 and shall be a constant voltage, filtered, voltage-regulated, fully automatic type rated for full-float charging of the associated batteries. The battery charger shall be convection cooled and suitable for operation on electric power supplied from the associated low-voltage alternating-current source, shall have adequate capacity to fully recharge the associated depleted battery in not more than 8 hours while supplying normal direct-current loads, and shall have an efficiency of not less than 90 percent. The battery charger shall have input and output circuit breakers which automatically disconnect the battery charger when faults occur. The battery charger shall also have the ability to automatically and manually (and remotely via SCADA) provide an equalizing charge as required for recharging the battery after discharge. AC input transient over voltage protection shall be accomplished on the AC input terminals. DC external transient over voltage protection shall be on the DC bus. The charger shall be protected against damage in the event that the battery is connected in reverse. The charger shall have protection from oscillatory surges (SWC) as defined by ANSI C37.90. The Battery charger shall operate correctly during and after application of oscillatory surges. Output current limit shall be adjustable from 50% to 110% of rated output. The battery charger shall protect itself from a short circuit in the output side electronically so as to limit the current output. When the short is corrected the battery charger will automatically return to normal charger operation.

During a short circuit of the output an error code shall be provided as indication. The Current limit shall be factory set at 110% of rating.

This shall also be the limit available from the battery charger. Field adjustments may be made over a range from 50% to 110% of rating. The current limit shall be displayed directly in amperes and shall be adjustable in 0.01A increments. The battery charger shall include a Digital meter, 1% accuracy, 4-digit, and 7-segment and shall as a minimum indicate the following; DC Volts, DC Amperes, Equalize hours remaining and Error message codes.

A DC output filter shall limit the output ripple with the battery connected to 30 mV rms when measured at the battery terminals in accordance with NEMA PE5. The Operating environment shall be 0-50 deg C, storage at -40 to 70 deg C. The charger shall be capable of automatic self-diagnostics, and indicate any anomaly by means of an error code on the digital display. Error and message code definitions shall be posted within the battery charger and send an alarm via the communications module to SCADA system master station as specified in Section 26 70 00 SUPERVISORY CONTROL AND DATA ACQUISITION (SCADA). Charger shall automatically adjust the maintaining charge voltage to compensate for battery temperature (not ambient) changes with temperature-compensated float voltage control. Battery charger shall have a Communications Module which allows the user to remotely monitor and control the Battery Charger utilizing DNP3 Level 2 and RS-232 Communications.

Battery charger shall have a Communications Module which allows the user to remotely monitor and control the Battery Charger utilizing DNP3 Level 2 and RS-232 Communications per the

SECTION 26 24 13 Page 20 requirements of the SCADA specifications Section 26 70 00.

e. Battery Racks. Battery racks shall have welded steel frames and rails finished with two coats of paint of a color matching the battery charger enclosure. Rails shall have a top covering of plastic or rubber at least 1/16 inch thick. Paint, rubber, and plastic shall resist corrosion and action of the electrolyte. The installation shall be provided with a portable hydrometer syringe and thermometer. Racks shall meet the requirements of earthquake seismic requirements as specified in ASCE 7-05.

f. Battery Compartment Ventilation Fan and Thermostat. Batteries and Battery Charger shall be provided in a separate ventilated battery compartment. The battery compartment shall be provided with ventilation fan and thermostat. Fan shall be rated for 120V. Fan shall be controlled by an adjustable thermostat and timer located inside the battery compartment. The Thermostat shall be industrial type, low limit, to maintain the battery compartment below a maximum 80 degrees Timer shall provide for the battery manufactures’ recommended air changes per hour.

2.2.10 Insulated Barriers

Where insulated barriers are required by reference standards, provide barriers in accordance with NEMA LI 1, Type GPO-3, and 0.25 inch minimum thickness.

2.2.11 Current Transformers

Provide transformers that conform to IEEE C57.13. Ensure that transformers are single-ratio, 60 hertz ratio as indicated, and rating factor (RF) and accuracy class as indicated below.

CT Ratio RF Accuracy Class

200/5 4.0 0.3 through B-0.1

300/5 3.0 0.3 through B-0.2

400/5 4.0 0.3 through B-0.2

600/5 3.0 0.3 through B-0.5

800/5 2.0 0.3 through B-0.5

1200/5 1.5 0.3 through B-0.5

1500/5 1.5 0.3 through B-0.9

2000/5 1.5 0.3 through B-1.8

Coordinate with Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM, when transformer section is provided. Use UL 1558 for switchboard.

SECTION 26 24 13 Page 21

2.2.12 Control Power Transformer

Control power transformer shall comply with IEEE C57.12.01, shall be of the ventilated dry type with a 115 degrees C rise above 40 degrees C maximum ambient designed for mounting in switchboard cubicle or drawer.