USPFO WH Addendum.pdf

Global Buildings NA 501 North Broadway St. Louis, Missouri 63102 USA

1.314.335.4000 Fax 1.314.335.5102

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Global Buildings North America

OHARNG USPFO Warehouse Addendum No. 01

21 May 2009

Drawing No. Description

C100 Changed scale from 1"=60'-0" to 1"=30'-0".

C201 Changed "Existing Pavement Cracks Shall be Routed and Sealed as

Directed by the Owners Representative" to "Pavement Planing and Asphalt Concrete Overlay Entire Street (All Planing and Overlay in USPFO Project)" on 9th Blvd.

Added Proposed Aggregate callout.

Changed "Alternate 1 - Aggregate, Alternate 2 - Concrete Pavement" to

"Optional Bid Item 3 - Aggregate, Optional Bid Item 4 - Asphalt Pavement, Optional Bid Item 5 - Concrete Pavement".

Changed "Proposed Asphalt POV Parking Area" to Proposed POV Parking Area, Base Bid Aggregate, Optional Bid Item 8 Asphalt Pavement".

Changed "Limits of Alternate 1 Concrete Pavement" to "Limits of Base Bid Pavement Planing and Asphalt Concrete Overlay, Optional Bid Item 6 Concrete Pavement".

Removed "Existing Pavement Cracks Shall be Routed and Sealed as Directed by the Owners Representative" call out on 8th Blvd.

Changed "Alternate 1 Remove 8th Blvd. Pavement and Replace with Concrete Pavement" to "Base Bid Pavement Planing and Asphalt Concrete Overlay Entire Street, Optional Bid Item 6 Remove 8th Blvd.

Pavement and Replace with Concrete Pavement (All Planing, Overlay and Optional Bid Item 6 in USPFO Project)"

C400 Added "Adjust Manhole Lid to Finished Grade As Necessary" callout.

Added "Remove Existing Power Pole, Refer to Electrical Plans for

Details” callout.

Added "New Power Pole, Refer to Electrical Plans for Exact Location and

Details" callout.

C601 Removed detail Random Crack Joint Repair, add detail Pavement

Planing and Asphalt Concrete Overlay; add detail B1 Asphalt Pavement

(OBI 4)

C606 Added 1' stub to entrance.

C607 Changed detail sheet callout C606 to C600.

Added "New Power Pole, Refer to Electrical Plans for Exact Location and

Details" callout.

Added "Remove Existing Power Pole, Refer to Electrical Plans for

Details" callout.

Added "Proposed Concrete Pavement" callout; add 1' stub to entrance.

OHARNG USPFO Warehouse Addendum No. 01 21 May 2009

Global Buildings North America

Drawing No. Description

L100 Graphic depiction of limit of construction has been refined for clarity.

Bollards near handicapped parking have been defined and dimensioned.

L503 Detail notes regarding the beam guard have been refined to depict sections.

Chain-link fence note has been changed to note black vinyl coating on all sides.

A211a Changed partition type and layout behind drinking fountain near toilet rooms, east of column line C.

A302 Indicated heights of CCTV junction boxes on elevations.

A401 Clarified dimension of window pocket on detail A5.

A411 Updated detail D3.

A502 Updated graphics of bulkheads.

A701 Modified partition at drinking fountain to accommodate chiller.

A810 Updated glass type schedule.

A821 Updated glass type schedule.

Updated glass type on D1 Window Types W-1 through W-8.

S202 Revised callout in detail B1.

Added note to detail B2.

Revised reinforcement in detail B4.

Added to callout in detail C4.

Revised callout in detail C5.

S213 Revised section callout on line 22 between lines D and E.

S501 Revised section B3.

E201 Keyed Note #9 revised.

Keyed Notes #17 & 18 added.

Specification Section

000010 “Table of Contents – Specifications”:

Added Specification 260856 “Gutter De-Icing Cables” Added Specification 261200 “Medium Voltage Transformers”

014000 “Quality Requirements” 1.4.A shall be changed to read as follows:

A. Qualification Data: For testing agencies specified in “Quality Assurance” Article to demonstrate their capabilities and experience. Include proof of qualifications in the form of a recent report on the inspection of the testing agency by a recognized authority.

Contractor shall contract directly with testing agency and the testing agency shall report to the Government

083613 “Sectional Doors”;

Subsection 2.7.1.2: Center mounted operator type has been changed to side mounted.

OHARNG USPFO Warehouse

21 May 2009

Global Buildings North America

087100 “Door Hardware”: Delete reference to Paragraph 2.9 and subparagraph A.

095113 “Acoustical Panel Ceilings”; Subsection 1.3.A: Seismic Load Category D has been changed to Category C.

233113 “Metal Ducts”

Hranec Spiral added as an acceptable manufacturer.

238126 “Modular Indoor Central-Station Air-Handling Units”

McQuay added as an acceptable manufacturer.

238216 “Split-System Air-Conditioners”

McQuay added as an acceptable manufacturer.

260856 “Gutter De-Icing Cables”. New specification added and included with Addendum.

261200 “Medium Voltage Transformers”. New specification added and included with Addendum.

F5W61608 USPFO Warehouse Ohio Army National Guard Rev. 1 Defense Supply Center Columbus, Ohio 21 May 2009

TABLE OF CONTENTS - SPECIFICATIONS 000010 – 1

DOCUMENT 000010 – TABLE OF CONTENTS - SPECIFICATIONS

VOLUME 1 OF 2

SECTION NO. SECTION NAME

000010 TABLE OF CONTENTS - SPECIFICATIONS

000011 TABLE OF CONTENTS - DRAWINGS

DIVISION 01 – GENERAL REQUIREMENTS

010000 GENERAL REQUIREMENTS

010001 AFFIRMATIVE PROCUREMENT

011000 SUMMARY (SCOPE OF WORK)

012300 OPTIONAL BID ITEMS

012900 PAYMENT PROCEDURES

013100 PROJECT MANAGEMENT AND COORDINATION

013200 CONSTRUCTION PROGRESS DOCUMENTATION

013233 PHOTOGRAPHIC DOCUMENTATION

013300 SUBMITTAL PROCEDURES

014000 QUALITY REQUIREMENTS

015000 TEMPORARY FACILITIES AND CONTROLS (RESERVED)

016000 PRODUCT REQUIREMENTS

017329 CUTTING AND PATCHING

017419 CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

017700 CLOSEOUT PROCEDURES

017839 PROJECT RECORD DOCUMENTS

017900 OPERATIONAL AND MAINTENANCE TRAINING

018113 SUSTAINABLE DESIGN REQUIREMENTS

019113 GENERAL COMMISSIONING REQUIREMENTS

019313 OPERATION AND MAINTENANCE MANUALS

DIVISION 03 – CONCRETE

033000 CAST-IN-PLACE CONCRETE

DIVISION 04 – MASONRY

042000 UNIT MASONRY

DIVISION 05 – METALS

051200 STRUCTURAL STEEL FRAMING

052100 STEEL JOIST FRAMING

053100 STEEL DECKING

054000 COLD-FORMED METAL FRAMING

055000 METAL FABRICATIONS

055150 LADDERS

055213 PIPE AND TUBE RAILINGS

TABLE OF CONTENTS - SPECIFICATIONS 000010 – 2

055300 METAL GRATINGS

DIVISION 06 – WOOD, PLASTICS, AND COMPOSITES

061000 ROUGH CARPENTRY

061600 SHEATHING

064023 INTERIOR ARCHITECTURAL WOODWORK

066400 THERMAL INSULATION

DIVISION 07 – THERMAL AND MOISTURE PROTECTION

071326 SELF-ADHERING SHEET WATERPROOFING

072100 THERMAL INSULATION

072410 POLYMER-BASED EXTERIOR FINISH SYSTEM (EFS)

074213 METAL WALL PANELS

074216 INSULATED-CORE METAL WALL PANELS

074243 COMPOSITE WALL PANELS

075423 THERMOPLASTIC POLYOLEFIN (TPO) ROOFING

076100 SHEET METAL ROOFING

076200 SHEET METAL FLASHING AND TRIM

077100 ROOF SPECIALTIES

077200 ROOF ACCESSORIES

078413 PENETRATION FIRESTOPPING

078446 FIRE-RESISTIVE JOINT SYSTEMS

079200 JOINT SEALANTS

079500 EXPANSION CONTROL

DIVISION 08 – OPENINGS

081113 HOLLOW METAL DOORS AND FRAMES

081416 FLUSH WOOD DOORS

083113 ACCESS DOORS AND FRAMES

083323 OVERHEAD COILING DOORS

083459 VAULT DOORS AND DAY GATES

083613 SECTIONAL DOORS

083730 HIGH SPEED ROLLING DOOR

084113 ALUMINUM-FRAMED ENTRANCES AND STOREFRONTS

084413 GLAZED ALUMINUM CURTAIN W ALLS

087100 DOOR HARDWARE

087113 AUTOMATIC DOOR OPERATORS

088000 GLAZING

088500 DECORATIVE GLASS FILM

089000 LOUVERS AND VENTS

DIVISION 09 – FINISHES

092216 NON-STRUCTURAL METAL FRAMING

092900 GYPSUM BOARD

093000 TILING

095113 ACOUSTICAL PANEL CEILING

TABLE OF CONTENTS - SPECIFICATIONS 000010 – 3

096513 RESILIENT BASE AND ACCESSORIES

096519 RESILIENT TILE FLOORING

096813 TILE CARPETING

097230 DRY ERASE WALL COVERING

099113 EXTERIOR PAINTING

099123 INTERIOR PAINTING

099600 HIGH-PERFORMANCE COATINGS

DIVISION 10 – SPECIALTIES

101100 VISUAL DISPLAY SURFACES

101400 SIGNAGE

102113 TOILET COMPARTMENTS

102600 WALL AND DOOR PROTECTION

102800 TOILET, BATH AND LAUNDRY ACCESSORIES

104413 FIRE EXTINGUISHER CABINETS

104416 FIRE EXTINGUISHERS

105113 METAL LOCKERS

105626.13 MOBILE AISLE STORAGE SHELVING

106050 WIRE MESH PARTITIONS

DIVISION 11 – EQUIPMENT

111300 LOADING DOCK EQUIPMENT

DIVISION 12 – FURNISHINGS

122113 HORIZONTAL LOUVER BLINDS

DIVISION 13 – SPECIAL CONSTRUCTION

133423 FABRICATED STRUCTURE

VOLUME 2 OF 2

DIVISION 21 – FIRE SUPPRESSION

210500 COMMON WORK RESULTS FOR FIRE SUPPRESSION

210548 VIBRATION AND SEISMIC CONTROLS FOR FIRE-SUPPRESSION

PIPING AND EQUIPMENT

211000 FIRE ALARM AND MASS NOTIFICATION SYSTEM

211313 WET-PIPE SPRINKLER SYSTEMS

DIVISION 22 − PLUMBING

220500 COMMON WORK RESULTS FOR PLUMBING

220513 COMMON MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT

220516 EXPANSION FITTINGS AND LOOPS FOR PLUMBING PIPING

220519 METERS AND GAGES FOR PLUMBING PIPING

TABLE OF CONTENTS - SPECIFICATIONS 000010 – 4

220523 GENERAL DUTY VALVES FOR PLUMBING PIPING

220529 HANGERS AND SUPPORTS FOR PLUMBING PIPING AND

EQUIPMENT

220548 VIBRATION AND SEISMIC CONTROLS FOR PLUMBING PIPING

220553 IDENTIFICATION FOR PLUMBING PIPING AND EQUIPMENT

220700 PLUMBING INSULATION

221116 DOMESTIC WATER PIPING

221119 DOMESTIC WATER PIPING SPECIALTIES

221123 DOMESTIC WATER PUMPS

221316 SANITARY WASTE AND VENT PIPING

221319 SANITARY WASTE PIPING SPECIALTIES

223400 FUEL-FIRED DOMESTIC WATER HEATERS

224000 PLUMBING FIXTURES

224500 EMERGENCY PLUMBING FIXTURES

224700 DRINKING FOUNTAINS AND WATER COOLERS

DIVISION 23 – HEATING VENTILATING AND AIR CONDITIONING

230500 COMMON WORK RESULTS FOR HVAC

230513 COMMON MOTOR REQIUREMENTS FOR HVAC EQUIPMENT

230529 HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

230548 VIBRATION AND SEISMIC CONTROLS FOR HVAC PIPING AND

EQUIPMENT

230553 IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

230593 TESTING, ADJUSTING, AND BALANCING FOR HVAC

230700 HVAC INSULATION

230800 COMMISSIONING OF HVAC

230810 MECHANICAL TESTING REQUIREMENTS

230811 PRE-FUNCTIONAL CHECKLISTS MECHANICAL

230900 INSTRUMENTATION AND CONTROL FOR HVAC

230993 SEQUENCE OF OPERATIONS FOR HVAC CONTROLS

231123 FACILITY NATURAL-GAS PIPING

232300 REFRIGERANT PIPING

233113 METAL DUCTS

233300 AIR DUCT ACCESSORIES

233423 HVAC POWER VENTILATORS

233600 AIR TERMINAL UNITS

233713 DIFFUSERS, REGISTERS, AND GRILLES

235100 BREECHINGS, CHIMNEYS, AND STACKS

237313 MODULAR INDOOR CENTRAL-STATION AIR-HANDLING UNITS

238126 SPLIT-SYSTEM AIR-CONDITIONERS

238239 UNIT HEATERS

238416 DESSICANT HUMIDIFICATION UNITS

DIVISION 26 – ELECTRICAL

260500 COMMON WORK RESULTS FOR ELECTRICAL

TABLE OF CONTENTS - SPECIFICATIONS 000010 – 5

260519 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

260523 CONTROL-VOLTAGE ELECTRICAL POWER CABLES

260526 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

260529 HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

260533 RACEWAY AND BOXES FOR ELECTRICAL SYSTEMS

260536 CABLE TRAYS FOR ELECTRICAL SYSTEMS

260543 UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL

SYSTEMS

260548 VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS

260553 IDENTIFICATION FOR ELECTRICAL SYSTEMS

260800 COMMISSIONING OF ELECTRICAL SYSTEMS

260856 GUTTER DE-ICING CABLES

260923 LIGHTING CONTROL DEVICES

261200 MEDIUM-VOLTAGE TRANSFORMERS

262200 LOW-VOLTAGE TRANSFORMERS

262413 SWITCHBOARDS

262416 PANELBOARDS

262713 ELECTRICITY METERING

262726 WIRING DEVICES

262813 FUSES

262816 ENCLOSED SWITCHES AND CIRCUIT BREAKERS

262923 VARIABLE-FREQUENCY MOTOR CONTROLLERS

263323 CENTRAL BATTERY EQUIPMENT

263600 TRANSFER SWITCHES

264113 LIGHTNING PROTECTION FOR STRUCTURES

264313 TRANSIENT-VOLTAGE SUPPRESSION FOR LOW-VOLTAGE

ELECTRICAL POWER CIRCUITS

265100 INTERIOR LIGHTING

265600 EXTERIOR LIGHTING

DIVISION 27 – COMMUNICATIONS

270500 COMMON WORK RESULTS FOR COMMUNICATIONS

271100 COMMUNICATIONS EQUIPMENT ROOM FITTINGS

271300 COMMUNICATIONS BACKBONE CABLING

271500 COMMUNICATIONS HORIZONTAL CABLING

274133 MASTER ANTENNA TELEVISION DISTRIBUTION SYSTEM

275116 PUBLIC ADDRESS SYSTEM

DIVISION 31 – EARTHWORK

311000 SITE CLEARING

312000 EARTH MOVING

312319 DEWATERING

DIVISION 32 – EXTERIOR IMPROVEMENTS

321100 WATER MAINS

321216 ASPHALT PAVING

TABLE OF CONTENTS - SPECIFICATIONS 000010 – 6

321313 CONCRETE PAVING

323113 CHAIN LINK FENCES AND GATES (FOR BUILDING INTERIOR)

323114 CHAIN LINK FENCES AND GATES (EXTERIOR)

329200 LAWNS

329300 PLANTS

DIVISION 33 – UTILITIES (NOT USED)

330000 SANITARY SEWER

334000 SITE DRAINAGE

344116 TRAFFIC CONTROL

END TABLE OF CONTENTS - SPECIFICATIONS 000010

Ohio Army National Guard Rev. 01

GUTTER DE-ICING CABLES 260856 - 1

SECTION 260856 - GUTTER DE-ICING CABLES

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Heating cable systems including power connection kits, splice kits, end seal and tee kits and attachment kits.

B. Automatic Controller.

1.2 PERFORMANCE REQUIREMENTS

A. Snow Melting Installations: Average watts/lineal foot is: 15 watts per foot.

1.3 PROJECT RECORD DOCUMENTS

A. Accurately record actual locations of heating cable, sensors, controllers, and branch circuit connections.

B. Manufacturer’s warranty shall cover the cables for at least 5 years after the finished installation date.

C. Operations, maintenance and installation manuals shall be provided by the manufacturer of the snow melting system.

1.4 QUALIFICATIONS

A. Manufacturer: company specializing in manufacturing the products in this Section with a minimum 15 years experience.

B. All heating cable equipment furnished under this section shall be supplied by a single USA manufacturer.

C. UL Listed cable heaters and automatic control system.

D. Self-regulating type cable shall be provided for this application. shall consist of two nickel-plated copper bus wire within a self-regulating conductive core, a modified polyolefin inner jacket a tinned-copper braid and a fluoro-polymer outer jacket.

1.5 COORDINATION

A. Coordinate installation of heating cable with Manufacturer’s installation instructions.

B. Coordinate installation of heating cable with installation of gutters and downspouts.

GUTTER DE-ICING CABLES 260856 - 2

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Raychem Corporation, or equal.

2.2 HEATING CABLE

A. Heating Cable: UL Listed, two conductor self-regulating type cable with two nickel-plated copper bus wire within a self-regulating conductive core, a modified polyolefin inner jacket a tinned-copper braid and a fluoro-polymer outer jacket.

1. Each cable heater shall be factory assembled, and then tested for insulation resistance, high potential breakdown and continuity before leaving the factory.

2. Power output shall be a minimum of 15 watts per foot (nominal) in ice or snow.

3. Minimum bend radius shall be 5/8 inches.

4. Pigtails shall be of sufficient length to reach junction boxes or power panel per manufacturer’s recommendation. Pigtails shall be of stranded wire to provide maximum flexibility for ease in pulling to junction boxes or panel.

B. Rating: 277 VAC 1-phase

2.3 ACCESSORIES

A. Controller

1. Control shall be by an automatic moisture/temperature controller, NEMA 3R rated and operate on 277 VAC. Controller shall include one low voltage ambient air temp / moisture sensor, control panel, one or more gutter sensors and one or more aerial snow sensors.

2. Control system shall include the use of snow sensors, contactors and an ambient temperature thermostat.

B. Contactor Enclosures

1. Controller will not switch larger heater cable loads. Contactors housed in NEMA 1 rated enclosures shall be located indoors, as indicated on the drawings.

2. Contactors shall have 277 volt coils.

C. Items not provided by the manufacturer that are typically necessary are: plastic or wire tie wraps, cable testing equipment (megger), conduit, junction / pull boxes, power wiring, and additional low voltage sensor wiring, breakers and switchgear panels.

Installing contractor shall be solely responsible for providing these items.

GUTTER DE-ICING CABLES 260856 - 3

PART 3 - EXECUTION

3.1 EXAMINATION

A. Installer to verify that roofs gutters and downspouts are ready to receive work.

B. Installer to verify field measurements.

3.2 INSTALLATION

A. Complete installation shall conform to appropriate local codes and shall be in accordance with manufacturer’s specification..

B. Pull stranded wire (cold leads) pigtails through ¾” conduit back to junction boxes provided by the installer.

C. Avoid pinching and making unnecessary sharp bends in cable.

3.3 FIELD QUALITY CONTROL

A. Test continuity of heating cable.

B. Perform insulation resistance (megger) test on each cable heater before, during, and after installation.

C. Submit written test report showing values measured on each test for each cable.

3.4 ADJUSTING AND CLEANING

A. Annually clean the sensor head with mild soap & water solution before snow season begins.

END OF SECTION 260856

Ohio Army National Guard Rev. 0

MEDIUM-VOLTAGE TRANSFORMERS 261200 - 1

SECTION 261200 - MEDIUM-VOLTAGE TRANSFORMERS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes distribution and power transformers with medium-voltage primaries. Types of transformers specified in this Section include the following:

1. Liquid-filled, pad mounted.

1.3 SUBMITTALS

A. General: Submit the following according to the Conditions of the Contract and Division 1 Specification Sections.

B. Submit the following before releasing equipment for manufacturing:

1. Shop Drawings: Show dimensions, elevations, sections, layout, bushing location, cable entry locations, fusing, and surge arrester location, fill, drain, and other accessories, wiring and connection diagrams. Identify center of gravity and locate and describe mounting and anchorage provisions. Indicate dimensioned concrete base, outline of transformer, and required clearances.

2. Wiring diagrams of transformers and accessory components, differentiating between manufacturer-installed and field-installed wiring.

3. Show conformance to requirements in Section 16072 - “Electrical Supports and Seismic Restraints”.

C. Submit the following before shipment of equipment:

1. Product Test Reports: Certified copies of manufacturer's design and routine factory tests required by the referenced standards.

2. Sound Level Test Reports: Certified copies of manufacturer's sound level tests applicable to equipment for this Project.

3. Operation and maintenance data for materials and products to include in the "Operating and Maintenance Manual".

D. Submit the following after field tests are done:

1. Field test reports of tests and inspections conducted according to Part 3 of this Section.

MEDIUM-VOLTAGE TRANSFORMERS 261200 - 2

1.4 QUALITY ASSURANCE

A. Installer Qualifications: Engage an experienced Installer of medium-voltage electrical distribution equipment to perform the installation specified in this Section.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Store transformers in accordance with manufacturer’s recommended procedures.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers of Dry-Type Transformers: Subject to compliance with requirements, provide products by one of the following:

1. ABB

2. Hammond

3. Virginia Transformer

B. Manufacturers of Liquid-Cooled Transformers: Subject to compliance with requirements, provide products by one of the following:

1. ABB

2. Cooper Power Systems

3. Delta-Y

4. Virginia Transformer

2.2 TRANSFORMER, GENERAL

A. Windings: Two-winding type, designed for operation with high-voltage windings connected to a 3-phase, 3-wire, 60-Hz, grounded neutral distribution system.

B. Primary Voltage Rating: As indicated on drawings

C. Secondary Voltage Rating: As indicated on drawings

D. Windings: Aluminum

E. Basic Impulse Insulation Level of Primary Winding: 95 kV.

F. Basic Impulse Insulation Level of Secondary Winding: 10 As indicated on drawings kV.

480V.

G. Rating As indicated on drawings

MEDIUM-VOLTAGE TRANSFORMERS 261200 - 3

H. Low Sound Level Transformers: Units with a sound level rating a minimum of 3 dB less than NEMA TR 1 standard sound levels for the transformer type and rating.

I. Forced-air cooling equipment consists of cooling fans, temperature-sensing devices, and controls complete with housing, mounting devices, conduit and wiring.

1. Cooling Fan Operation: Automatically and sequentially controlled by temperature-sensing devices, with capability of manually running the fans, regardless of the winding temperature.

2. Enclosure for Controls: Cabinet located on the side of the transformer at a height not greater than 60 inches above the base.

3. Cooling Fans: Direct-drive, propeller type, with aluminum blades, fan guards, and TEFC motors. Each motor shall be individually protected from overload by integral or external means.

4. Fan Control: Thermally operated winding, temperature-sensing devices.

5. Winding Temperature Sensor: Provide winding temperature sensor located at the theoretical hot spot location in each phase winding.

6. High-Temperature Alarm: Sensor at transformer with local audible and visual alarm and contacts for remote alarm.

2.3 LIQUID-FILLED TRANSFORMERS – GENERAL

A. Insulating Liquid: Less flammable, edible-seed-oil based, and UL listed as complying with NFPA 70 requirements for fire point of not less than 300 degrees Celsius when tested according to ASTM D 92. Liquid shall be biodegradable and nontoxic.

B. Insulation Temperature Rise: 65 (OA) degrees Celsius over 40-degree Celsius ambient.

C. Accessories: Provide the following accessories:

1. One-inch drain valve with sampling device.

2. Dial-type thermometer.

3. Liquid level gage.

4. Pressure-vacuum gage.

5. Pressure-Relief Device: Self-sealing with indicator.

2.4 LIQUID-FILLED PAD-MOUNTED TRANSFORMERS

A. Transformers shall be dead-front when doors are closed. Equip doors with penta-head bolt which is required to be loosened for opening of doors, and with padlocking provisions to enable the doors to be padlocked in the closed position.

B. Comply with IEEE C57.12.22 and C57.12.28 and with the following features and ratings.

C. Full-Capacity Voltage Taps: Four nominal 2.5-percent taps, 2 above and 2 below rated high voltage, with externally operable tap changer for de-energized use, with position indicator.

MEDIUM-VOLTAGE TRANSFORMERS 261200 - 4

D. Primary-Voltage Terminations and Equipment: Live front, with externally clamped porcelain bushings and cable connectors suitable for terminating primary cable.

1. Bushing Well Inserts: One for each high-voltage bushing well.

2. Lightning Arrestors: Dead-front elbow-type MOV units.

3. Parking Stands: One for each high-voltage bushing well.

4. Portable Insulated Bushings: Arranged for parking elbow terminators. One for each primary feeder conductor terminating at transformer.

2.5 FINISHES

A. Enclosure Coating System for Outdoor Units: Comply with IEEE Standard C57.12.28 "pad-Mounted Equipment-Enclosure Integrity", regardless of transformer type.

2.6 SOURCE QUALITY CONTROL

A. Factory Tests: Design and routine tests conform to the referenced standards.

B. Factory Sound-Level Tests: Conduct sound level tests on equipment for this Project where specifying sound levels below the standard ratings.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Comply with IEEE Standard C2, "National Electrical Safety Code" and the manufacturer's written installation instructions:

B. Identify transformers and install warning signs according to Division 16 Section "Electrical Identification.

C. Use lugs rated for 75 degree Celsius when connecting conductors to transformer.

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

3.2 GROUNDING

A. Ground transformers and systems served by transformers according to Division 16 Section 16050, "Grounding and Bonding".

3.3 FIELD QUALITY CONTROL

A. Manufacturer's Field Services: Arrange and pay for the services of a factory-authorized service representative to supervise the field assembly and connection of components, and the pretesting and adjustment of transformer components and accessories.

MEDIUM-VOLTAGE TRANSFORMERS 261200 - 5

B. Pretesting: After completing system installation, perform the following preparations for tests:

1. Make insulation-resistance tests for transformers.

2. Make a continuity test for windings and remote alarm circuits.

3. Provide a set of Contract Drawings to the testing agency.

4. Provide manufacturer's installation and testing instructions to the testing agency.

C. Independent Testing Agency: Provide services of an independent electrical testing agency according to the requirements of Division 1 Specifications to perform tests on medium-voltage transformer installations.

D. Test Objectives: To ensure transformer installation complies with Contract Documents, is operational within industry and manufacturer's tolerances, and is suitable for energizing.

E. Test Labeling: Upon satisfactory completion of tests for each transformer, attach a dated and signed "Satisfactory Test" label to the unit.

F. Schedule tests and provide notification at least one week in advance of test commencement.

G. Report: Submit a written report of observations and tests. Report defective materials and workmanship.

H. Tests: Include the following minimum inspections and tests according to the manufacturer's instructions. For test method and data correction factors, conform to IEEE Standard Test codes C57.12.90 for liquid-filled units, and IEEE C57.12.91 for dry-type units.

1. Inspect accessible components for cleanliness, mechanical, and electrical integrity, for presence of damage or deterioration, and to ensure removal of temporary shipping bracing. Do not proceed with tests until deficiencies are corrected.

2. Dry-Type Transformers: Include internal inspection through access panels and covers.

3. Inspect bolted electrical connections for tightness according to manufacturer's published torque values or, where not available, those of UL STandards 486A and 486B.

4. Insulation Resistance: Perform megohmmeter test of primary and secondary winding-to-winding and winding-to-ground according to the following:

WINDING MINIMUM MINIMUM INSULATION

RATING TEST RESISTANCE (MEGOHMS)

(VOLTS) VOLTS (d.c.) DRY TYPE LIQUID FILLED

0 - 600 1,000 500 100

601 - 5,000 2,500 5,000 1,000 5,000 - 35,000 5,000 25,000 5,000

MEDIUM-VOLTAGE TRANSFORMERS 261200 - 6

5. Duration of Each Test: 10 minutes.

6. Temperature Correction: Correct results for test temperature deviation from 20 degree Celsius standard.

7. Turns Ratio: Measure between windings at each tap setting. Measured ratios deviating more than 0.5 percent from the calculated ratio or the measured ratio for adjacent coil are not acceptable.

8. Winding Resistance: Measure for winding at nominal tap setting. Measured resistance deviating more than 1 percent from that of adjacent winding is not acceptable.

9. Overpotential Tests: Apply between high and low voltage and ground at not over 85 percent of factory test value for 1 minute.

10. Liquid-Filled Transformer Insulating Power Factor Test: Determine overall dielectric loss and power factor for winding insulation. Limit test voltage to the line-to-ground voltage of the winding being tested. Measured values exceeding the following are unacceptable:

a. Oil-Filled Units: 1.0 percent.

b. Silicone-Filled Units: 0.5 percent.

c. High-Fire-Point Hydrocarbon-Filled Units: 1.0 percent.

11. Test Failures: Compare test results with specified performance or manufacturer's data. Correct deficiencies identified by tests and retest. Verify that transformers meet specified requirements.

3.4 ADJUSTING

A. After completing installation and cleaning, touch up scratches and mars on finish to match original finish.

B. Adjust transformer taps to provide optimum voltage conditions at utilization equipment throughout the normal operating cycle of the facility. Record voltages and tap settings to submit with test results.

3.5 DEMONSTRATION

A. Training: Arrange and pay for the services of a factory-authorized service representative to demonstrate transformers and accessories and train Owner's staff.

Include a minimum of 8 hours of training in operation and maintenance. Provide both classroom training and hands-on equipment operation covering the following:

1. Safety precautions.

2. Features and construction of project transformers and accessories.

3. Routine inspection, test and maintenance procedures.

4. Routine cleaning.

5. Features, operation, and maintenance of integral disconnect and protective devices.

6. Interpretation of readings of indicating and alarm devices.

7. Fuse selection.

MEDIUM-VOLTAGE TRANSFORMERS 261200 - 7

8. Protective relay setting considerations.

9. Features, operation and maintenance of separable insulated connector system.

10. Tap-changing procedures.

B. Schedule training with at least 7 days' advance notice.

END OF SECTION 261200