26 11 13.00 20 Rev.pdf

Transit Protection Program (TPP) Pier & Maint. Facility P-907 1603608ADD3

SECTION 26 11 13.00 20

PRIMARY UNIT SUBSTATION

04/07

PART 1 GENERAL

1.1 REFERENCES

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

AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)

AISC 303 (2010) Code of Standard Practice for Steel Buildings and Bridges

ANSI/AISC 360 (2005) Specification for Structural Steel Buildings

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

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

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING

ENGINEERS (ASHRAE)

ASHRAE 90.1 - IP (2013) Energy Standard for Buildings Except Low-Rise Residential Buildings

AMERICAN WELDING SOCIETY (AWS)

AWS D1.1/D1.1M (2015; Errata 1 2015; Errata 2 2016) Structural Welding Code - Steel

ASTM INTERNATIONAL (ASTM)

ASTM A167 (2011) Standard Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip

ASTM A36/A36M (2014) Standard Specification for Carbon Structural Steel

ASTM B117 (2016) Standard Practice for Operating Salt Spray (Fog) Apparatus

ASTM D1535 (2014; R 2018) Standard Practice for Specifying Color by the Munsell System

ASTM D2794 (1993; R 2010) Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)

ASTM D4060 (2014) Abrasion Resistance of Organic

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Coatings by the Taber Abraser

ASTM D4541 (2009; E 2010) Pull-Off Strength of Coatings Using Portable Adhesion Testers

ELECTRONIC COMPONENTS INDUSTRY ASSOCIATION (ECIA)

ECIA EIA/ECA 310-E (2005) Cabinets, Racks, Panels, and Associated Equipment

ICC EVALUATION SERVICE, INC. (ICC-ES)

ICC ES AC156 (2012) Acceptable Criteria for Seismic Certification by Shake-Table Testing of Nonstructural Components

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

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

IEEE C37.04 (1999; R 2006; AMD 1 2003; R 2006; ERTA

2005; R 2006; AMD 2 2008; CORR 2009; INT

2010) Standard for Rating Structure for AC High-Voltage Circuit Breakers

IEEE C37.06 (2009) Standard for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis - Preferred Ratings and Related Required Capabilities for Voltage Above 1000 V

IEEE C37.118 (2005) Standard for Synchrophasors for Power Systems

IEEE C37.20.2 (1999; Corr 2000; R 2005) Standard for Metal-Clad Switchgear

IEEE C37.20.3 (2013) Standard for Metal-Enclosed Interrupter Switchgear

IEEE C37.20.7 (2017) Guide for Testing Metal-Enclosed Switchgear Rated Up to 38 kV for Internal Arcing Faults

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

IEEE C57.12.00 (2015) General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers

IEEE C57.12.28 (2014) Standard for Pad-Mounted Equipment

- Enclosure Integrity

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

- Enclosure Integrity for Coastal Environments

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IEEE C57.12.80 (2010) Standard Terminology for Power and Distribution Transformers

IEEE C57.12.90 (2015; Corr 2017) Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers

IEEE C57.13 (2016) Requirements for Instrument Transformers

IEEE C57.96 (2013) Guide for Loading Dry-Type Distribution and Power Transformers

IEEE C57.98 (2011) Guide for Transformer Impulse Tests

IEEE C62.11 (2012) Standard for Metal-Oxide Surge Arresters for Alternating Current Power Circuits (>1kV)

INTERNATIONAL CODE COUNCIL (ICC)

ICC IBC (2015) International Building Code

INTERNATIONAL ELECTROTECHNICAL COMMISSION (IEC)

ANSI IEC 60529 (2004; R 2011) Degrees of Protection Provided by Enclosures

IEC 60068-2-27 (2008; ED 4.0) Environmental Testing - Part 2-27: Tests - Test Ea and Guidance:

Shock

IEC 60255-21-3 (1993; ED 1.0) Electrical Relays - Part 21: Vibration, Shock, Bump And Seismic Tests On Measuring Relays And Protection Equipment - Section 3: Seismic Tests

IEC 60947-2 (2013) Low-Voltage Switchgear and Controlgear – Part 2: Circuit-Breakers

IEC 61000-4-5 (2014) Electromagnetic Compatibility (EMC)

- Part 4-5: Testing and Measurement Techniques - Surge Immunity Test

IEC 61850 (2011) Communication Networks and Systems in Substations - ALL PARTS)

INTERNATIONAL ELECTRICAL TESTING ASSOCIATION (NETA)

NETA ATS (2017; Errata 2017) Standard for Acceptance Testing Specifications for Electrical Power Equipment and Systems

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA LI 1 (1998; R 2011) Industrial Laminating Thermosetting Products

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NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 1 (2018) Fire Code

NFPA 70 (2017) National Electrical Code

SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC SP 10/NACE No. 2 (2007) Near-White Blast Cleaning

TELECOMMUNICATIONS INDUSTRY ASSOCIATION (TIA)

TIA-232 (1997f; R 2012) Interface Between Data Terminal Equipment and Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange

U.S. DEPARTMENT OF DEFENSE (DOD)

UFC 3-310-04 (2013; with Change 1) Seismic Design of Buildings

UFC 3-401-01 (2013) Mechanical Engineering

UFC 3-410-01 (2013) Heating, Ventilating, and Air Conditioning Systems

UFC 3-520-05 (2015;) Stationary Battery Areas

UNDERWRITERS LABORATORIES (UL)

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

UL 489 (2016) UL Standard for Safety Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker Enclosures

UL 50 (2015) UL Standard for Safety Enclosures for Electrical Equipment, Non-Environmental Considerations

1.2 RELATED REQUIREMENTS

Section 26 00 00.00 20 BASIC ELECTRICAL MATERIALS AND METHODS and Section 26 08 00 APPARATUS INSPECTION AND TESTING apply to this section, with the additions and modifications specified herein.

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. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Transformer Drawings ; G

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SCADA Interconnection Drawings ; G

DC One-Line Diagram

DC Panel Schedules ; G

Switchgear Enclosure Drawings ; G

Switchgear Drawings ; G

SD-03 Product Data

Primary Substation ; G

Switchgear Enclosure ; G

Primary Substation Switchgear ; G

Infrared Viewing Windows ; G

Remote Racking Mechanism And Controller ; G

SCADA; G

Digital Synchronizer and Load Control

SD-05 Design Data

Capacity Calculations for Battery Charger and Batteries ; G

Battery Room Ventilation Design ; G

Protective Device Settings ; G

SD-06 Test Reports

Calibration Test Reports ; G

Submit report of results of Acceptance Checks and Tests specified by paragraph FIELD QUALITY CONTROL; G

Factory Witness Tests ; G

Factory Witness Test Plan ; G

Factory Witness Tests report ; G

Dielectric tests ; G

SD-07 Certificates

Test equipment calibration certificates ; G

SD-09 Manufacturer's Field Reports

Switchgear Design Tests ; G

Switchgear Production Tests ; G

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Transformer Design Tests ; G

Transformer Routine and Other Tests ; G

SD-11 Closeout Submittals

Equipment Test Schedule ; G

1.4 QUALITY ASSURANCE

1.4.1 Switchgear Drawings

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

Prior to fabrication, submit shop drawings for switchgear.

a. Dimensioned elevations including front, rear, and sides.

b. Dimensioned floor and roof plans showing conduit entrance dimensions and locations.

c. Show lifting and support points, weights, shipping split locations and provisions.

d. Single-line diagram interposed on front elevation showing physical and electrical arrangement.

e. Single-line diagrams showing bus, circuit breakers, instrument transformers, control transformers, relays, and meters. Show ratings and polarities for all devices. Show ampere ratings of bus bars.

Show short-circuit bracing ratings.

f. Single-line grounding diagram. Show material, size, and location of grounding components superimposed on rear elevation drawings.

g. Three-line diagrams showing current transformer circuit connections, shorting terminal blocks, test switches, relays, meters, programmable automation controller, interfaces, potential transformer circuits, and potential transformer fuses. Show ratios, polarities, and ratings for all devices. Indicate with arrows power flow consistent with sequence of normal operation shown. Show grounding locations for current transformer and potential transformer circuits.

h. Control and logic diagrams showing all local and remote inputs and outputs, remote and local interface connections, power connections, and communication signal connections.

i. Communications diagram showing all interfaced components. Include connector and port types, cable types, and protocols.

j. Switchgear nameplate and circuit breaker nameplate.

k. Indexed, tabulated list of proposed components. Include manufacturer's name, device type, description, complete part number, including options provided.

l. SCADA Interconnection Drawings . Show devices, protocols, cables, and connection types.

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m. DC one-line diagram and DC panel schedules .

1.4.2 Switchgear Enclosure Drawings

Prior to fabrication, submit shop drawings for the switchgear enclosure.

Submit switchgear enclosure design drawings, calculations, and specifications stamped by professional engineers registered in the State of Washington.

a. Submit seismic design and calculations sealed and signed by a registered structural engineer.

b. Submit HVAC system design and calculations sealed and signed by a registered mechanical engineer.

c. Floor plans, elevations, and details showing architectural and structural components including roof panels, wall panels, gables, eave trim, gutters, downspouts, girders, columns, purlins, girts, steel bracing, column base plates, anchors, hardware, insulation, and weather sealing. Include penetration sealing details. Include finish details. Include template for anchor bolt installation, coordinated with the vault construction shop drawings.

d. Floor plans, elevations, and details showing mechanical components including ventilators, louvers, fans, heaters, air conditioners, thermostats, humidistats, and controllers.

e. Floor plans, elevations, and details showing electrical components including lighting, switches, receptacles, panelboards, substation battery, relay racks, and switches. Include medium voltage switchgear layout and show cable and conduit entry points, branch circuit wiring, and panelboard schedules with NEC load calculations.

1.4.3 Primary Substation Switchgear Product Data

Prior to fabrication, submit manufacturer's product data for the primary substation switchgear and SCADA.

a. Metal-clad switchgear assembly.

b. Current transformers. Show ratio, class, burden, basic impulse level (BIL) ratings.

c. Potential transformers. Show ratio, class, burden, basic impulse level and efficiency ratings.

d. Protective relays. Include time current curves.

e. Lock-out relays.

f. Protective relay and metering test switches.

g. Battery

h. Battery rack. Show all components and seismic restraint details.

i. Battery charger.

j. Surge arrestors.

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k. Circuit breaker lifting device.

l. Programmable automation controller.

m. Fiber optic cable.

n. Global positioning satellite clock.

o. Trip coil monitor.

1.4.4 Switchgear Enclosure Product Data

Prior to fabrication, submit manufacturer's product data for the switchgear enclosure.

a. Architectural and structural components including but not limited to wall panels, gables, eave trim, gutters, downspouts, girders, columns, purlins, girts, steel bracing, column base plates, anchors, and hardware. Include drawings showing floor joists and primary foundation support locations coordinated with the final structural vault details for supporting the floor of the enclosure.

b. Sealants and flashings.

c. Finishes.

d. Ventilators.

e. Louvers and dampers.

f. Fans.

g. Heaters.

h. Air conditioners.

i. Thermostats.

j. Humidistats.

k. Controllers.

l. Luminaires.

m. Receptacles.

n. Panelboards.

o. Switches.

1.4.5 Factory Witness Test Plan

Prior to scheduling the Factory Witness Tests, submit test plan for Contracting Officer approval.

a. Test plan shall include title sheet showing project information.

b. Test plan shall include a tabular check-off sheet and shall have

SECTION 26 11 13.00 20 Page 8 columns including index, descriptive test name, initiating action, resultant action, and blank columns for initialing and dating by all persons witnessing the tests.

c. Narratives required to describe tests.

d. One-line diagrams.

e. Temporary wiring and test set-up diagrams including temporary power and test instrument connections.

f. Test plan shall be a comprehensive, step-by-step instruction and shall be written with sufficient detail to instruct a qualified person who is unfamiliar with the specific construction to duplicate the tests and achieve duplicate test results.

g. Test plan shall include test equipment calibration certificates .

1.4.6 Battery Power Calculations

Submit capacity calculations for battery charger and batteries .

Calculation shall verify that battery capacity exceeds station d.c. power requirements.

1.4.7 Transformer Losses

Submit certification from the manufacturer indicating conformance with the paragraph SPECIFIED TRANSFORMER LOSSES.

1.4.8 Switchgear Drawings

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

a. An outline drawing with front, top, and side views

b. Ampere ratings of bus bars

c. Maximum short-circuit bracing

d. Nameplate data

e. Provisions for future extension

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

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

h. One-line diagram, including switch(es), circuit breakers, current transformers, meters, and fuses

1.4.9 Transformer Drawings

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

a. An outline drawing, with top, front, and side views

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b. ANSI nameplate data

1.4.10 Protective Device Settings

a. Submit protective device settings with the coordination study specified in Section 26 00 00.00 20 showing that the system is coordinated with the exact devices installed. Submit settings 30 days in advance of the date that settings will be programmed.

b. The equipment requiring protection and coordination shall be installed prior to making this request.

1.4.11 Calibration Test Reports

Submit operation and maintenance data in accordance with Section 01 78 23

OPERATION AND MAINTENANCE DATA.

1.5 MAINTENANCE

1.5.1 Additions to Operation and Maintenance Data

In addition to requirements of Data Package 5, include the following on the actual primary unit substations provided.

a. An instruction manual with pertinent items and information highlighted

b. An outline drawing, including front view and sectional views with items and devices identified

c. Prices for spare parts and supply list

d. Routine and field acceptance test reports

e. Time-Current-Characteristic (TCC) curves of fuses and circuit breakers

f. Information on metering

g. Actual nameplate diagram

h. Date of purchase

1.6 DELIVERY, STORAGE, AND HANDLING

Comply with the requirements of Division 01 and the following:

a. Do not ship the switchgear and switchgear enclosure prior to receipt of the Contracting Officer's written approval of the Factory Witness Tests results and the Contracting Officer's written approval of the vault inspections and test results.

b. Pay for shipping, handling, loading, lifting, rigging, permits, and unloading costs from the point of manufacture to the point of installation, including Contractor's off-site storage facility.

c. Switchgear manufacturer and switchgear enclosure manufacturer shall have representatives to supervise loading, unloading, and storage at each point of loading, unloading, and storage.

d. Coordinate the maximum shipping dimensions and weights of the

SECTION 26 11 13.00 20 Page 10 switchgear enclosure and installed switchgear and systems with the physical characteristics and regulatory restrictions of the roadways from the point of manufacturer to the point of installation. Obtain and pay for all regulatory licenses, escorts, and permits. Coordinate with the Contracting Officer for specific delivery requirements.

e. Provide vibration and impact recorders on each switchgear section and other sections susceptible to shock and vibration damage. Record counters prior to and after delivery. Submit counters to the Contracting Officer for inspection upon request.

f. Store switchgear indoors in clean dry space with uniform temperature to prevent condensation. Protect switchgear from exposure to dirt, fumes, water, corrosive substances, and physical damage.

g. After Factory Witness Tests have been performed and accepted, ship the switchgear to the pre-fabricated enclosure manufacturer for final pre-site shipment assembly and demonstration. Assemble all components to a working condition for final pre-shipment witness by the Contracting Officer.

h. Do not ship switchgear with circuit breakers installed. Brace switchgear by other means.

PART 2 PRODUCTS

2.1 PRODUCT COORDINATION

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

2.2 PRIMARY SUBSTATION

Medium voltage switchgear consisting of incoming section, generator section, distribution section, transformer section, and auxiliary sections. Substation shall be designed for outdoor service with ventilation openings and gasketing provided to ensure a weatherproof assembly under rain, snow, sleet, and hurricane conditions. External doors shall have provisions for padlocking.

2.2.1 Prefabricated Switchgear Enclosure

Provide a prefabricated switchgear enclosure including structural steel framed base, metal enclosure walls, panels, doors, roof, frame, gutters, overhang, structural steel skid, 38kV and 15 kV switchgear, control panels, and supporting interior power, lighting, heating, cooling, telephone, and related equipment. enclosure shall be complete, tested, and ready for operation prior to shipment and after installation at the site.

2.2.1.1 Enclosure

The enclosure shall be a fabricated of ASTM A167 Type 304 or 304L Stainless Steel. Rear switchgear cable compartment access doors shall attach to a frame which matches the width of the respective interior unit.

Each frame shall be bolted directly to each interior unit. Adjacent units shall remain isolated in accordance with ANSI C37.20.3 when opening any access door. A "drop-over" house is not acceptable.

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2.2.1.2 Substation Base and Floor

Mount switchgear enclosure on AWS D1.1/D1.1M welded structural steel skid base, constructed entirely of ASTM A36/A36M steel. Structural steel skid base including design, materials, installation, workmanship, fabrication, assembly, erection inspection, quality control, and testing shall be in accordance with AISC 303 and ANSI/AISC 360 . The exterior perimeter and underside of the skid base shall be protected with a minimum 800 micron coating of a coal tar epoxy. Provide stainless steel plates not less than 1/4 inch thick to cover entire top of skid base except under incoming cable compartments. Paint coating system shall comply with IEEE C57.12.29 .

After the unit is complete, the top side (floor) is painted with an epoxy paint and sand mix for the non-skid finish. Entire skid shall be blasted clean to SSPC SP 10/NACE No. 2 requirements prior to coating. The coating shall meet the performance requirements of ASTM D4060 for abrasion, ASTM D4541 for adhesion, ASTM D2794 for impact, and ASTM B117 for salt fog. Conduit cutout cover plates shall be .125" thick ASTM A167 Type 316L stainless steel.

2.2.1.3 Doors

The switchgear enclosure doors shall be double wall, 16 gauge ASTM A167 Type 316L stainless steel with top reinforcing panel for door closer and center reinforcing panel for exit device. Maximum deflection shall be

0.062 inch across the width and 0.0125 across the height. Personnel doors shall be 84 inches tall. Width shall be as indicated.

2.2.1.4 Personnel Door Viewing Windows

Provide viewing windows for all personnel doors. View area shall be between 6 inches and 9 inches wide by 18 to 28 inches high.

2.2.1.5 Infrared Viewing Windows

Doors to medium voltage switchgear cable terminations shall be equipped with infrared viewing windows, positioned 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. These windows are intended to allow thermographers the ability to inspect the electrical equipment without directly exposing themselves to live electrical components and energized devices. Infrared viewing windows shall comply with the following requirements:

a. Nominal viewing port diameter shall be 4 inches. Minimum viewport diameter shall be 3.5 inches.

b. Arc-tested in accordance with IEEE C37.20.7 to 63kA for 30 cycles at 60Hz.

c. Recognized component in accordance with UL 50 V.

d. ANSI IEC 60529 rating shall be IP67.

2.2.1.6 Paint Coating System

Paint coating system for the switchgear enclosure and switchgear enclosure shall comply with IEEE C57.12.29 . All panel sheets and framing components shall be coated prior to assembly.

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a. Exterior Color: Munsell 7GY 3.29/1.5.

b. Interior Color: ANSI Safety White.

2.2.1.7 Design Load

Design enclosure in accordance with ICC IBC :

a. Floor live load shall include the heaviest circuit breaker on its hoisting mechanism.

b. Roof live load shall be calculated in accordance with the IBC.

b. Roof Snow Load: 25 psf minimum.

c. Wind Loading: Based on 110 mph Basic Wind Speed, Exposure C, Category

IV.

d. Seismic Loading: Seismic design shall be in accordance with UFC 3-310-04 and shall be shall be based on Risk Category IV and Seismic Design Category D and the structural drawings (SW) for design criteria and site information.

2.2.1.8 Framing

Provide rigid frame type construction, with self-framing vertical walls and standing seam gable roof with maximum panel widths of 16 inches. Roof slope shall be a minimum of 1 to 12. Ceiling shall be independent of roof panels. Design framed openings structurally. There shall be a minimum clear space of 18 inches above the top of the tallest switchgear equipment.

2.2.1.9 Roof, Wall, and Ceiling Panels

a. Exterior panels to be 12 gauge (.105") minimum.

b. Interior panels to be 18 gauge (.048") minimum.

c. Flashing to be 16 gauge (.060") minimum and sealed.

d. Standing seam roof interlocking rib height shall be not less than 2.5 inches and shall be sealed.

e. Insulation in the cores of the ceiling and wall panels shall be asbestos-free composition and provide an overall "U" value of not more than 0.10.

2.2.1.10 Heating Ventilation and Air Conditioning (Switchgear and Control Rooms)

The switchgear enclosure shall be provided with a self-contained packaged HVAC system having all components necessary to maintain the indoor environmental conditions required by the manufacturer of the installed electrical equipment. The total design load for the system shall include infiltration, ventilation load and the heat generated by the equipment within the enclosure. HVAC equipment shall meet the minimum efficiencies per ASHRAE 90.1 - IP . Provide at least 0.15 cfm/sq. feet of mechanical induced outside air for ventilation. The HVAC System shall be provided with a 100 percent outdoor air economizer with enthalpy-based control.

SECTION 26 11 13.00 20 Page 13

The HVAC system shall be provided with an electronic, automatic changeover temperature sensor and a space humidity sensor for humidity control. All exterior electrical apparatus of the HVAC system shall be tamper proof.

Outdoor ambient conditions used in calculations and equipment selection shall be based on the following outdoor design conditions.

a. Cooling Design Dry Bulb Design Temperature: 92 degrees F dry bulb, 67 degrees F mean coincident wet bulb.

b. Cooling Design Wet Bulb Design Temperature: 71 degrees F wet bulb, 90 degrees F mean coincident dry bulb.

c. Heating and Humidification Design (Median of Extreme Lows): 21 degrees F dry bulb; 19 degrees F mean coincident wet bulb (11 grains of moisture/pound of dry air gr/lb). Indoor design conditions shall be 78 degrees F and 50% relative humidity.

Provide ventilation ducts through walls to the 15kV and 38kV switchgear areas. Size ducts and system to maintain even temperature and humidity in all areas. Seal around penetrations. Ductwork shall be constructed, supported, and braced per SMACNA standards. HVAC design shall meet the requirements of UFC 3-401-01 and UFC 3-410-01 .

2.2.1.11 Battery Room Ventilation

Provide ventilation in accordance with NFPA 1 Fire Code, Section 52, and UFC 3-520-05 Stationary Battery Areas. Submit battery room ventilation design for review.

2.2.2 Incoming Generator and Distribution Sections

IEEE C37.20.2 for metal-clad medium-voltage vacuum circuit breaker type, insulated for 15 kV for use on 12.47 kV system. Each steel unit forming part of the switchgear structure shall be self-contained and shall house two-high breaker or instrument compartments, and a full height center and rear compartment for the buses and outgoing cable connections. For two-high breaker units, provide a removable metal barrier to separate the two cable circuits. Equip individual circuit-breaker compartments with drawout contacts, rails, disconnecting mechanism, and a cell interlock to prevent moving the removable element into or out of the "connected" position while the circuit breaker is closed. Provide a steel door for each breaker compartment. Enclosures shall be designed for outdoor location and shall conform to the Category A requirements of Table A1 of Appendix A to IEEE C37.20.2 . Design the structure to allow for future additions. Provide laminated plastic nameplates for each relay, switch, meter, device, and cubicle to identify its function. Provide permanent labels for wiring and terminals corresponding to the designations on approved shop drawings. Mount nameplates on each circuit breaker compartment door.

a. Phase buses and connections: Mount bus structure on insulated supports of high-impact, non-tracking, high-quality insulating material and brace bus to withstand the mechanical forces exerted during short-circuit conditions when connected directly to a source having maximum of 25000 amperes rms symmetrical available. Bus bars shall be rated 1200 amperes and shall be high conductivity copper having silver plated joints. Make bus bar connections from main buses to the incoming circuit breaker studs. Equip outgoing circuit breaker studs with mechanical crimp type cable connectors for the size of

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cables shown. Provide cable supports for outgoing cables. Wire secondary circuits, including heater circuits, to terminal blocks.

Terminal blocks shall be readily accessible for making external connections as required.

b. Ground bus: Provide a copper ground bus sized for full short-circuit capacity. Secure ground bus to each vertical structure and extend ground bus the entire length of switchgear. Include provisions for making the station ground connections.

c. Each breaker compartment shall have provision for mounting up to four sets of ANSI rated current transformers, two on line side and two on load side of each breaker.

2.2.2.1 Circuit Breaker

Each vacuum circuit breaker shall be an electrically operated, three-pole, circuit interrupting device rated as indicated at maximum voltage of 15 kV and 95 kV BIL. Breaker shall be designed for service on a 12.47 kV system with a short-circuit capacity of not less than 25000 amperes symmetrical.

Rating shall be based on IEEE C37.04 and IEEE C37.06 . Breaker frame size shall be as indicated. Circuit breaker shall be drawout-mounted with position indicator, operation counter, auxiliary switches, and primary and secondary disconnect devices. Circuit breaker shall be operated by an electrically charged, mechanically and electrically trip-free, stored-energy operating mechanism. Provide for manual charging of the mechanism and for slow closing of the contacts for inspection or adjustment. Circuit breaker control voltage shall be 48 Vdc.

a. Contacts: Silver-plated, multifinger, positive pressure, self-aligning type for main drawout contacts.

b. Each drawout breaker shall be provided with three-position operation.

The connected position and the test/disconnect position shall be clearly identified by an indicator on the circuit breaker front panel.

1. Connected position: Contacts are fully engaged. Breaker shall be tripped before it can be racked into or out of this position.

2. Test/disconnect position: Position shall allow for complete testing and operation of the breaker without energizing the primary circuit.

3. Withdrawn (removed) positions: Places breaker completely out of compartment, ready for removal.

2.2.2.2 Space Only Compartments

Provide fully equipped with busing, control switch, indicating lights, and drawout breaker mounting and connecting straps to accommodate future breakers. Provide compartments with doors.

2.2.2.3 Breaker Lifter

Provide a portable lifter rated for lifting and lowering circuit breakers from two-high cubicles. Portable lifter shall have swivel casters in front for ease of movement.

SECTION 26 11 13.00 20 Page 15

2.2.2.4 Remote Racking Mechanism and Controller

Provide portable remote racking mechanism with remote operator controller, specifically designed for the switchgear and circuit breakers provided, complete with the following required capabilities and components:

a. Rack in and out circuit breakers, stopping at each position without damaging equipment.

b. Positive indication of circuit breaker position, viewable from the remote end of the operator.

c. Manually installed on the switchgear doors. Furnish doors with reinforcement to prevent warping and damage. Furnish doors with mounting hardware pre-installed and pre-tested using the specific racking mechanism provided.

d. Provide 75-foot cord between racking mechanism and controller.

e. Provide dedicated storage space for mechanism, controller, and cord.

f. Integral, resettable overcurrent protection.

g. Torque-controlled racking mechanism with torque limits engineered for the switchgear provided.

h. Remote viewing from the controller or other remote device to provide operator with ability to abort racking of mal-aligned equipment.

i. Power supply.

2.2.3 Conductor Termination

Conductor terminations shall be designed for terminating one single conductor cables per phase and shall be arranged for conduits entering from below. Provide cable terminations of the modular molded rubber type as specified in Section 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION.

2.2.4 Auxiliary Section(s)

The secondary transition and auxiliary section(s) shall have a hinged front panel, a ground bus, necessary terminal blocks, wiring and control buses, control power transformer, and cable supports. In the auxiliary section provide a 48-V battery complete with rack and standard accessories, and a battery charger, static type, with automatic charger control, complete with ammeter, voltmeter, and rheostat.

2.2.4.1 Control Power Transformers

Transformers shall be designed for continuous operation at rated kVA 24 hours a day, 365 days a year with normal life expectancy as defined in IEEE C57.96 . Dry-type, two-winding type, 115 degrees C rise above 40 degrees C maximum ambient designed for mounting in switchgear cubicle or drawer. Transformer shall be sized as shown on the drawings.

2.2.4.2 Primary Protection

Provide drawout-mounted, primary current limiting fuses rated for the specified transformer size and the available short-circuit current.

SECTION 26 11 13.00 20 Page 16

2.2.4.3 Secondary Protection

Provide molded-case circuit breakers sized as required, mounted in same compartment with transformer and primary fuses to serve the indicated loads.

2.2.5 Protective Relays, Metering, and Control Devices

2.2.5.1 Relays

Relays shall conform to IEEE C37.90 . Protective relays shall be microprocessor based enclosed in rectangular, semiflush, cases with indicating targets and provisions for testing in place by use of manufacturer's standard test blocks or test switches. One complete set of test blocks or test switches to fit each type of relay in the equipment shall be provided. Controls, relays, and protective functions shall be provided completely assembled and wired.

2.2.5.2 Non-directional Overcurrent Relays (MFR1)

a. Product Description: IEEE C37.90 Microprocessor-based feeder protection relay, IEEE Device numbers as specified herein.

b. Mounting: Flush mounted device, installed on 19 inch mounting plates for 19 inch equipment rack.

c. Output Contacts: Provide output contacts rated for 30 amperes making current, 6 amperes continuous current at 70 deg C. Contacts shall not be rated less than 48 volts DC.

1. Provide one high-speed, high-current contact to trip circuit breaker.

2. Provide output contact with its own test switch. Wire test switch in series with output contact. Refer to "PROTECTIVE RELAY AND METERING TEST SWITCHES" in this Section.

d. Alarm Contact: Provide alarm contact wired in series with relay test switch. Wire alarm to signal supervisory control and data acquisition system (SCADA) upon following conditions.

1. Relay failure.

2. Battery voltage monitor. Provide dual level substation battery voltage monitor with following adjustable parameters.

(a) Low level warning adjustable from 15 to 300 volts DC.

(b) High level warning adjustable from 15 to 300 volts DC.

(c) Low level failure adjustable from 15 to 300 volts DC.

(d) High level failure adjustable from 15 to 300 volts DC.

(e) Peak to peak AC ripple detection adjustable from 1 to 300 volts AC.

(f) Substation battery ground detection, adjustable.

SECTION 26 11 13.00 20 Page 17

e. Control and Status Inputs:

1. Provide status input from a contact on circuit breaker. Contact shall be open when breaker is OPEN and closed when breaker is

CLOSED.

f. Current Inputs: Provide individual inputs from current transformers for protected circuit. Route current from current transformer to shorting terminal blocks, from shorting terminal blocks to shorting relay test switches, and from test switches to relay. Current input ratings shall be as follows.

1. Nominal current shall be 5 amperes to match current transformer secondary ratings.

2. Continuous current shall be 15 amperes, linear to 100 amperes symmetrical.

3. Burden shall not exceed 0.30 VA at 5 amperes and 3.0 VA at 15 amperes.

g. Voltage Inputs: Provide three-phase, four-wire voltage inputs and single-phase, two-wire voltage inputs from potential transformer circuits shown. Route voltage circuits through non-shorting relay test switches to relay. Voltage input ratings shall be as follows.

1. Nominal voltage shall be 120 volts phase to phase to match potential transformer secondary ratings.

2. Continuous voltage rating shall be 300 volts.

3. Burden shall not exceed 0.10 VA.

h. Protective Functions: Provide following adjustable protection functions and settings.

1. Phase Instantaneous Overcurrent (50P)

2. Ground (Residual) Instantaneous Overcurrent (50G)

3. Neutral Instantaneous Overcurrent (50N)

4. Negative-Sequence Overcurrent (50Q)

5. Phase Time Overcurrent (51P)

6. Ground (Residual) Time Overcurrent (51G)

7. Neutral Time Overcurrent (51N)

8. Station DC Battery Monitor

i. IRIG-B. The relay shall include an interface port for a demodulated IRIG-B time synchronization input signal. The relays shall generate a time synchronizing signal to provide a synchronizing signal to other relays.

j. Communications Protocols: The relay shall come equipped with

SECTION 26 11 13.00 20 Page 18 following protocols, whether used by application or not. Refer to paragraph titled "SUPERVISORY CONTROL AND DATA ACQUISITION (SCADA)" of this Section for supervisory, control, and data acquisition requirements.

1. Protocols shall include ASCII, Compressed ASCII, DNP3.0, IEC 61850 , IEEE C37.118 Synchrophasor data, Telnet, FTP, and Mirrored Bits.

2. Digital Relay-to-Relay Communications. The relay shall include send and receive logic elements and provide analog and virtual terminal service in two communications ports for dedicated relay-to-relay communication.

3. IEC 61850 Ethernet Communications. The relay shall provide IEC 61850 -compliant communications. The IEC 61850 capability shall include GOOSE messaging and defined logical node data points.

k. Communications Ports: Provide ports as follows.

1. Front TIA-232 serial port for uploading and downloading settings, event reports, and data via laptop computer.

2. Port 1 shall be dual redundant 100Base-FX multimode fiber ports for Ethernet communications. Ports shall operate in failover mode. Ports shall support FTP file transfer protocol, IEC 61850 protocol, IEC 61850 GOOSE messaging, and DNP 3.0 protocol with up to three DNP sessions.

3. Port 2 shall be serial fiber port supporting Mirrored Bits protocol for transfer tripping.

4. Port 3 shall be serial TIA-232 port supporting ASCII, DNP, MOD, EVMSG, and PMU.

5. Port 4 shall be serial TIA-232 port supporting ASCII, DNP, MOD, EVMSG, and PMU.

2.2.5.3 Non-directional Overcurrent Relays (MFR3)

a. Product Description: IEEE C37.90 Microprocessor-based feeder protection relay, IEEE Device numbers as specified herein.

b. Mounting: Flush mounted device, installed on 19 inch mounting plates for 19 inch equipment rack.

c. Output Contacts: Provide output contacts rated for 30 amperes making current, 6 amperes continuous current at 70 deg C. Contacts shall not be rated less than 48 volts DC.

1. Provide one high-speed, high-current contact to trip circuit breaker.

2. Provide output contact with its own test switch. Wire test switch in series with output contact. Refer to "PROTECTIVE RELAY AND METERING TEST SWITCHES" in this Section.

d. Alarm Contact: Provide alarm contact wired in series with relay test switch. Wire alarm to signal supervisory control and data acquisition system (SCADA) upon following conditions.

SECTION 26 11 13.00 20 Page 19

1. Relay failure.

2. Battery voltage monitor. Provide dual level substation battery voltage monitor with following adjustable parameters.

(a) Low level warning adjustable from 15 to 300 volts DC.

(b) High level warning adjustable from 15 to 300 volts DC.

(c) Low level failure adjustable from 15 to 300 volts DC.

(d) High level failure adjustable from 15 to 300 volts DC.

(e) Peak to peak AC ripple detection adjustable from 1 to 300 volts AC.

(f) Substation battery ground detection, adjustable.

e. Control and Status Inputs:

1. Provide status input from a contact on circuit breaker. Contact shall be open when breaker is OPEN and closed when breaker is

CLOSED.

f. Current Inputs: Provide individual inputs from current transformers for protected circuit. Route current from current transformer to shorting terminal blocks, from shorting terminal blocks to shorting relay test switches, and from test switches to relay. Current input ratings shall be as follows.

1. Nominal current shall be 5 amperes to match current transformer secondary ratings.

2. Continuous current shall be 15 amperes, linear to 100 amperes symmetrical.

3. Burden shall not exceed 0.30 VA at 5 amperes and 3.0 VA at 15 amperes.

g. Voltage Inputs: Provide three-phase, four-wire voltage inputs from potential transformer circuits shown. Route voltage circuits through non-shorting relay test switches to relay. Voltage input ratings shall be as follows.

1. Nominal voltage shall be 120 volts phase to phase to match potential transformer secondary ratings.

2. Continuous voltage rating shall be 300 volts.

3. Burden shall not exceed 0.10 VA.

h. Protective Functions: Provide following adjustable protection functions and settings.

1. Phase Instantaneous Overcurrent (50P)

2. Ground (Residual) Instantaneous Overcurrent (50G)

SECTION 26 11 13.00 20 Page 20

3. Neutral Instantaneous Overcurrent (50N)

4. Negative-Sequence Overcurrent (50Q)

5. Phase Time Overcurrent (51P)

6. Ground (Residual) Time Overcurrent (51G)

7. Neutral Time Overcurrent (51N)

8. Station DC Battery Monitor

i. IRIG-B. The relay shall include an interface port for a demodulated IRIG-B time synchronization input signal. The relays shall generate a time synchronizing signal to provide a synchronizing signal to other relays.

j. Communications Protocols: The relay shall come equipped with following protocols, whether used by application or not. Refer to paragraph titled "SUPERVISORY CONTROL AND DATA ACQUISITION (SCADA)" of this Section for supervisory, control, and data acquisition requirements.

1. Protocols shall include ASCII, Compressed ASCII, DNP3.0, IEC 61850 , IEEE C37.118 Synchrophasor data, Telnet, FTP, and Mirrored Bits.

2. Digital Relay-to-Relay Communications. The relay shall include send and receive logic elements and provide analog and virtual terminal service in two communications ports for dedicated relay-to-relay communication.

3. IEC 61850 Ethernet Communications. The relay shall provide IEC 61850 -compliant communications. The IEC 61850 capability shall include GOOSE messaging and defined logical node data points.

k. Communications Ports: Provide ports as follows.

1. Front TIA-232 serial port for uploading and downloading settings, event reports, and data via laptop computer.

2. Port 1 shall be dual redundant 100Base-FX multimode fiber ports for Ethernet communications. Ports shall operate in failover mode. Ports shall support FTP file transfer protocol, IEC 61850 protocol, IEC 61850 GOOSE messaging, and DNP 3.0 protocol with up to three DNP sessions.

3. Port 2 shall be serial fiber port supporting Mirrored Bits protocol for transfer tripping.

4. Port 3 shall be serial TIA-232 port supporting ASCII, DNP, MOD, EVMSG, and PMU.

5. Port 4 shall be serial TIA-232 port supporting ASCII, DNP, MOD, EVMSG, and PMU.

2.2.5.4 Transformer Differential Relays (MFR4)

Provide high-speed, microprocessor based transformer differential relays.

Relays shall be configurable for single-phase and three-phase protection.

SECTION 26 11 13.00 20 Page 21

Bus configurations having more than 6 terminals require additional relays to protect all busses. The relays shall utilize mirrored bits communications for transfer trip functions.

a. Product Description: IEEE C37.90 Microprocessor-based bus differential protection relay, IEEE Device number 87B.

b. Mounting: Flush mounted device, installed on 19 inch mounting plates for 19 inch equipment rack.

c. Output Contacts: Provide output contacts rated for 30 amperes making current, 6 amperes continuous current at 70 deg. C. Contacts shall not be rated less than 48 volts DC.

1. Provide one contact to trip lock-out relay on bus differential trip function. Wire test switch in series with this output contact.

2. Provide multiple contacts to function as back-up overcurrent protective devices (IEEE 50/51) for sources and loads on protected bus. Circuit breakers on protected bus shall have their own output contacts and relay test switches. Wire test switch in series with output contacts. Refer to "PROTECTIVE RELAY AND METERING TEST SWITCHES" in this Section.

d. Alarm Contact: Provide alarm contact wired in series with relay test switch. Wire alarm to signal supervisory control and data acquisition system (SCADA) upon following conditions.

1. Current transformer open.

2. Relay failure.

3. Battery voltage monitor. Provide dual level substation battery voltage monitor with following adjustable parameters.

(a) Low level warning adjustable from 15 to 300 volts DC.

(b) High level warning adjustable from 15 to 300 volts DC.

(c) Low level failure adjustable from 15 to 300 volts DC.

(d) High level failure adjustable from 15 to 300 volts DC.

(e) Peak to peak AC ripple detection adjustable from 1 to 300 volts AC.

(f) Substation battery ground detection, adjustable.

e. Control and Status Inputs:

1. Provide status input of lockout relay and wire to indicate trip condition.

2. Provide status input from contact on circuit breakers on protected bus. Contacts shall be open when breaker is OPEN and closed when breaker is CLOSED.

f. Current Inputs: Provide individual inputs from current transformers

SECTION 26 11 13.00 20 Page 22 for circuit breakers on protected buses. Route current from current transformers to shorting terminal blocks, from shorting terminal blocks to shorting relay test switches, and from test switches to relay. Paralleling current transformers is prohibited. Current input ratings shall be as follows.

1. Nominal current shall be 5 amperes to match current transformer secondary ratings.

2. Continuous current shall be 15 amperes, linear to 100 amperes symmetrical.

3. Burden shall not exceed 0.30 VA at 5 amperes and 3.0 VA at 15 amperes.

g. Protective Functions:

1. Six or more low-impedance current differential circuits per phase (zone of protection).

2. Relay shall have high sensitivity for internal faults and low sensitivity for external faults.

3. Open and short circuit current transformer detection and alarm.

4. Breaker failure detection.

5. Instantaneous overcurrent protection (Device 50) for protected circuit breakers.

6. Time-overcurrent protection (Device 51) for protected circuit breakers.

7. End-zone protection for faults between open circuit breaker and CT.

h. IRIG-B. The relay shall include an interface port for a demodulated IRIG-B time synchronization input signal. The relays shall generate a time synchronizing signal to provide a synchronizing signal to other relays.

i. Communications Protocols: The relay shall come equipped with following protocols, whether used by application or not. Refer to paragraph titled "SUPERVISORY CONTROL AND DATA ACQUISITION (SCADA)" of this Section for supervisory, control, and data acquisition requirements.

1. Protocols shall include ASCII, Compressed ASCII, DNP3.0, IEC 61850, Telnet, FTP, and Mirrored Bits.

2. Digital Relay-to-Relay Communications. The relay shall include send and receive logic elements and provide analog and virtual terminal service in two communications ports for dedicated relay-to-relay communication.

3. IEC 61850 Ethernet Communications. The relay shall provide IEC 61850 -compliant communications. The IEC 61850 capability shall include GOOSE messaging and defined logical node data points.

j. Communications Ports: Provide ports as follows.

SECTION 26 11 13.00 20 Page 23

1. Front TIA-232 serial port for uploading and downloading settings, event reports, and data via laptop computer.

2. Port 1 shall be serial TIA-232 port supporting SEL ASCII, Compressed ASCII, and Settings File Transfer, SEL Fast Meter with Configuration, Fast Operate, Fast SER, Enhanced MIRRORED BITS Communications, and DNP3 Level 2 Slave Plus Dial-out.

3. Port 2 shall be serial TIA-232 port supporting SEL ASCII, Compressed ASCII, and Settings File Transfer, SEL Fast Meter with Configuration, Fast Operate, Fast SER, Enhanced MIRRORED BITS Communications, and DNP3 Level 2 Slave Plus Dial-out.

4. Port 3 shall be serial TIA-232 port supporting SEL ASCII, Compressed ASCII, and Settings File Transfer, SEL Fast Meter with Configuration, Fast Operate, Fast SER, Enhanced MIRRORED BITS Communications, and DNP3 Level 2 Slave Plus Dial-out.

5. Port 4 not used.

6. Port 5 shall be dual redundant 100Base-FX multimode fiber ports for Ethernet communications. Ports shall operate in failover mode. Ports shall support FTP file transfer protocol, IEC 61850 protocol, IEC 61850 GOOSE messaging, and DNP 3.0 protocol with up to three DNP sessions.

2.2.5.5 Bus Differential Relays (MFR6)

Provide high-speed, microprocessor based bus differential relays. Relays shall be configurable for single-phase and three-phase protection. Bus configurations having more than 6 terminals require additional relays to protect all busses. The relays shall utilize mirrored bits communications for transfer trip functions.

a. Product Description: IEEE C37.90 Microprocessor-based bus differential protection relay, IEEE Device number 87B.

b. Mounting: 19 inch rack mounted device in equipment rack.

c. Output Contacts: Provide output contacts rated for 30 amperes making current, 6 amperes continuous current at 70 deg. C. Contacts shall not be rated less than 48 volts DC.

1. Provide one contact to trip lock-out relay on bus differential trip function. Wire test switch in series with this output contact.

2. Provide multiple contacts to function as back-up overcurrent protective devices (IEEE 50/51) for sources and loads on protected bus. Circuit breakers on protected bus shall have their own output contacts and relay test switches. Wire test switch in series with output contacts. Refer to "PROTECTIVE RELAY AND METERING TEST SWITCHES" in this Section.

d. Alarm Contact: Provide alarm contact wired in series with relay test switch. Wire alarm to signal supervisory control and data acquisition system (SCADA) upon following conditions.

SECTION 26 11 13.00 20 Page 24

1. Current transformer open.

2. Relay failure.

3. Battery voltage monitor. Provide dual level substation battery voltage monitor with following adjustable parameters.

(a) Low level warning adjustable from 15 to 300 volts DC.

(b) High level warning adjustable from 15 to 300 volts DC.

(c) Low level failure adjustable from 15 to 300 volts DC.

(d) High level failure adjustable from 15 to 300 volts DC.

(e) Peak to peak AC ripple detection adjustable from 1 to 300 volts AC.

(f) Substation battery ground detection, adjustable.

e. Control and Status Inputs:

1. Provide status input of lockout relay and wire to indicate trip condition.

2. Provide status input from contact on circuit breakers on protected bus. Contacts shall be open when breaker is OPEN and closed when breaker is CLOSED.

f. Current Inputs: Provide individual inputs from current transformers for…