W912QR26BA019_Specs_Vol4-0000.pdf

Solicitation For Aeromedical Evacuation Squadron (AES) Joint Base Charleston, SC

P2: 517646

Design-Bid-Build

Specifications - Vol 4 of 4 (Div 26-33)

Certified Final Design 14 July 2026

W912QR26BA019

RRS-A: 200A Disposition: Maintain for 15 yrs after construction.

W912QR26BA019_Specs_Vol4-0000

Aeromedical Evacuation Squadron (AES), JB Charleston, SC P2 517646

PROJECT TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

00 80 00.00 06 04/21, CHG 1: 06/23 SPECIAL PROVISIONS

DIVISION 01 - GENERAL REQUIREMENTS

01 32 01.00 06 10/23 PROJECT SCHEDULE

01 33 00 08/18, CHG 4: 02/21 SUBMITTAL PROCEDURES

01 33 29.00 06 11/17 SUSTAINABILITY REPORTING

01 35 26.00 06 GOVERNMENT SAFETY REQUIREMENTS

01 42 00 02/19 SOURCES FOR REFERENCE PUBLICATIONS

01 45 00.15 10 11/23 RESIDENT MANAGEMENT SYSTEM CONTRACTOR

MODE (RMS CM)

01 45 04.10 06 CONTRACTOR QUALITY CONTROL

01 45 35 05/24 SPECIAL INSPECTIONS

01 50 00 11/20, CHG 3: 08/24 TEMPORARY CONSTRUCTION FACILITIES AND

CONTROLS

01 57 19.00 06 04/20 TEMPORARY ENVIRONMENTAL CONTROLS AND

PERMITS

01 74 19 JBC (Oct 2024) CONSTRUCTION WASTE MANAGEMENT AND

DISPOSAL

01 78 23 05/23 OPERATION AND MAINTENANCE DATA

01 91 00.15 05/23, CHG 3: 08/24 BUILDING COMMISSIONING

01 91 19 05/2023 BUILDING ENCLOSURE COMMISSIONING

DIVISION 02 - EXISTING CONDITIONS

02 41 00 08/22 DEMOLITION

DIVISION 03 - CONCRETE

03 30 00 02/19, CHG 8: 05/24 CAST-IN-PLACE CONCRETE

03 70 00 02/10, CHG 2: 08/20 MASS CONCRETE

DIVISION 04 - MASONRY

04 20 00 05/25 UNIT MASONRY

DIVISION 05 - METALS

05 05 20 05/22 POST-INSTALLED CONCRETE AND MASONRY

ANCHORS

05 05 23.16 08/18 STRUCTURAL WELDING

05 12 00 08/18, CHG 2: 05/21 STRUCTURAL STEEL

05 30 00 05/15, CHG 2: 08/18 STEEL DECKS

05 40 00 05/15, CHG 1: 08/18 COLD-FORMED METAL FRAMING

05 50 13 08/24, CHG 1: 08/25 MISCELLANEOUS METAL FABRICATIONS

05 51 00 08/23 METAL STAIRS

05 52 00 08/23 METAL RAILINGS

DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES

06 10 00 08/16, CHG 3: 05/25 ROUGH CARPENTRY

06 41 16.00 10 08/25 PLASTIC-LAMINATE-CLAD ARCHITECTURAL

CABINETS

06 61 16 08/20 SOLID SURFACING FABRICATIONS

PROJECT TABLE OF CONTENTS Page 1

CERTIFIED FINAL

SPECIFICATIONS VOLUME 1 OF 4

SPECIFICATIONS VOLUME 2 OF 4

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

07 21 13 08/23 BOARD AND BLOCK INSULATION

07 27 10 08/23 BUILDING AIR BARRIER SYSTEM

07 27 19.01 08/23, CHG 1: 08/24 SELF-ADHERING AIR BARRIERS

07 27 26 08/23 FLUID-APPLIED MEMBRANE AIR BARRIERS

07 60 00 08/23 FLASHING AND SHEET METAL

07 61 14.00 20 08/16, CHG 1: 08/18 STEEL STANDING SEAM ROOFING

07 84 00 05/10, CHG 1: 08/13 FIRESTOPPING

07 92 00 08/23 JOINT SEALANTS

DIVISION 08 - OPENINGS

08 11 13 08/20 STEEL DOORS AND FRAMES

08 11 16 05/17, CHG 2: 11/18 ALUMINUM DOORS AND FRAMES

08 14 00 08/16, CHG 1: 08/18 WOOD DOORS

08 31 00 05/17, CHG 1: 08/18 ACCESS DOORS AND PANELS

08 33 23 08/20, CHG 1: 02/22 OVERHEAD COILING DOORS

08 41 13 08/18, CHG 1: 08/18 ALUMINUM-FRAMED ENTRANCES AND

STOREFRONTS

08 51 13 05/19 ALUMINUM WINDOWS

08 71 00 02/16, CHG 4: 02/22 DOOR HARDWARE

08 81 00 05/19 GLAZING

08 91 00 08/20 METAL LOUVERS

DIVISION 09 - FINISHES

09 22 00 08/24 SUPPORTS GYPSUM BOARD

09 29 00 08/24 GYPSUM BOARD

09 30 10 08/20 CERAMIC, QUARRY, AND GLASS TILING

09 51 00 08/20 ACOUSTICAL CEILINGS

09 62 38 08/17, CHG 1: 08/18 STATIC-CONTROL FLOORING

09 65 00 11/24 RESILIENT FLOORING

09 68 00 11/17, CHG 2: 08/20 CARPETING

09 90 00 02/21 PAINTS AND COATINGS

DIVISION 10 - SPECIALTIES

10 14 00.20 08/20 INTERIOR SIGNAGE

10 21 13 08/20 TOILET COMPARTMENTS

10 22 39 08/20 FOLDING PANEL PARTITIONS

10 26 00 08/20 WALL AND DOOR PROTECTION

10 28 13 08/20 TOILET ACCESSORIES

10 44 16 11/19 FIRE EXTINGUISHERS

10 51 13 08/24 LOCKERS

DIVISION 12 - FURNISHINGS

12 24 13 08/20 ROLLER WINDOW SHADES

DIVISION 13 - SPECIAL CONSTRUCTION

13 48 73 05/25 SEISMIC CONTROL FOR NONSTRUCTURAL

COMPONENTS

DIVISION 14 - CONVEYING EQUIPMENT

14 24 23 05/16 HYDRAULIC PASSENGER ELEVATORS

PROJECT TABLE OF CONTENTS Page 2

CERTIFIED FINAL

DIVISION 21 - FIRE SUPPRESSION

21 13 13 08/20 WET PIPE SPRINKLER SYSTEMS, FIRE

PROTECTION

DIVISION 22 - PLUMBING

22 00 00 05/24 PLUMBING, GENERAL PURPOSE

22 05 48.00 20 04/06, CHG 1: 05/15 MECHANICAL SOUND, VIBRATION, AND

SEISMIC CONTROL

22 14 29.00 02/23 SUMP PUMPS

DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

23 03 00.00 20 08/10, CHG 3: 08/18 BASIC MECHANICAL MATERIALS AND METHODS

23 05 15 05/22, CHG 1: 02/24 COMMON PIPING FOR HVAC

23 05 48.19 05/18, CHG 2: 08/20 SEISMIC BRACING FOR HVAC

23 05 93.00 06 08/16 TESTING, ADJUSTING, AND BALANCING

(TAB) OF HVAC

23 07 00 02/13, CHG 7: 05/20 THERMAL INSULATION FOR MECHANICAL

SYSTEMS

23 08 00 05/23 COMMISSIONING OF MECHANICAL AND

PLUMBING SYSTEMS

23 09 00 02/19, CHG 3: 05/21 INSTRUMENTATION AND CONTROL FOR HVAC

23 09 13 11/15, CHG 2: 05/21 INSTRUMENTATION AND CONTROL DEVICES

FOR HVAC

23 09 23.02 02/19, CHG 1: 02/20 BACNET DIRECT DIGITAL CONTROL FOR HVAC

AND OTHER BUILDING CONTROL SYSTEMS

23 21 23 08/17 HYDRONIC PUMPS

23 23 00 08/21 REFRIGERANT PIPING

23 30 00 05/20, CHG 1: 02/22 HVAC AIR DISTRIBUTION

23 64 26 08/09, CHG 7: 02/24 CHILLED, CHILLED-HOT, AND CONDENSER

WATER PIPING SYSTEMS

23 74 33 05/24 DEDICATED OUTDOOR AIR SYSTEMS (DOAS)

23 81 00 05/24 DECENTRALIZED UNITARY HVAC EQUIPMENT

23 83 00.00 20 04/06 ELECTRIC SPACE HEATING EQUIPMENT

DIVISION 25 - INTEGRATED AUTOMATION

25 05 11.01 08/24 CYBERSECURITY FOR FACILITY-RELATED

CONTROL SYSTEMS - LIGHTING CONTROLS

25 05 11.02 08/24 CYBERSECURITY FOR FACILITY-RELATED

CONTROL SYSTEMS - FIRE ALARM & MASS

NOTIFICATION SYSTEM

25 05 11.03 08/24 CYBERSECURITY FOR FACILITY-RELATED

CONTROL SYSTEMS - UTILITY MONITORING

AND CONTROL SYSTEM

25 10 10 02/19, CHG 1: 05/21 UTILITY MONITORING AND CONTROL SYSTEM

(UMCS) FRONT END AND INTEGRATION

DIVISION 26 - ELECTRICAL

26 05 48 11/23 SEISMIC PROTECTION FOR ELECTRICAL

EQUIPMENT

26 05 73 08/23 POWER SYSTEM STUDIES

26 08 00 11/22 APPARATUS INSPECTION AND TESTING

26 12 19 05/24 PAD-MOUNTED, LIQUID-FILLED,

MEDIUM-VOLTAGE TRANSFORMERS

26 20 00 08/23 INTERIOR DISTRIBUTION SYSTEM

PROJECT TABLE OF CONTENTS Page 3

CERTIFIED FINAL

SPECIFICATIONS VOLUME 3 OF 4

SPECIFICATIONS VOLUME 4 OF 4

26 29 23 02/26 ADJUSTABLE SPEED DRIVE (ASD) SYSTEMS

UNDER 600 VOLTS

26 41 00 08/23 LIGHTNING PROTECTION SYSTEM

26 51 00 05/20, CHG 2: 11/21 INTERIOR LIGHTING

26 56 00 08/21 EXTERIOR LIGHTING

DIVISION 27 - COMMUNICATIONS

27 10 00 08/11 BUILDING TELECOMMUNICATIONS CABLING

SYSTEM

DIVISION 28 - ELECTRONIC SAFETY AND SECURITY

28 31 76 08/20 INTERIOR FIRE ALARM AND MASS

NOTIFICATION SYSTEM, ADDRESSABLE

DIVISION 31 - EARTHWORK

31 00 00.00 06 05/24 EARTHWORK

31 05 19.13 02/21 GEOTEXTILES FOR EARTHWORK

31 62 13.20 11/20, CHG 2: 02/24 PRECAST/PRESTRESSED CONCRETE PILES

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 11 23 05/22 AGGREGATE BASE COURSE

32 12 13 05/24 BITUMINOUS TACK AND PRIME COATS

32 12 16.16 11/20 ROAD-MIX ASPHALT PAVING

32 13 13.06 06 06/18 PORTLAND CEMENT CONCRETE PAVEMENT FOR

ROADS AND SITE FACILITIES

32 16 19 05/18 CONCRETE CURBS, GUTTERS AND SIDEWALKS

32 17 23 08/16 PAVEMENT MARKINGS

32 92 19 08/17, CHG 1: 08/21 SEEDING

32 92 23 04/06 SODDING

DIVISION 33 - UTILITIES

33 11 00 02/18 WATER UTILITY DISTRIBUTION PIPING

33 30 00 05/18 SANITARY SEWERAGE

33 32 16 11/19, CHG 1: 11/23 PACKAGED UTILITY STORMWATER PUMPING

STATIONS

33 40 00 11/21 STORMWATER UTILITIES

33 61 13.13 02/16 PREFABRICATED UNDERGROUND HYDRONIC

ENERGY DISTRIBUTION

33 71 02 08/21 UNDERGROUND ELECTRICAL DISTRIBUTION

33 82 00 04/06 TELECOMMUNICATIONS OUTSIDE PLANT (OSP)

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 4

SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

SECTION 26 05 48

SEISMIC PROTECTION FOR ELECTRICAL EQUIPMENT

11/23

PART 1 GENERAL

1.1 REFERENCES

1.2 SYSTEM DESCRIPTION

1.2.1 General Requirements

1.2.2 Electrical Components

1.2.3 Contractor Designed Supports and Attachments

1.3 SUBMITTALS

PART 2 PRODUCTS

2.1 EQUIPMENT REQUIREMENTS

2.1.1 Rigidly (Base and Suspended) Mounted Equipment

2.2 LIGHTING FIXTURES

2.3 SUPPORTS AND ATTACHMENTS

2.4 FLEXIBLE FITTINGS

PART 3 EXECUTION

3.1 SUPPORTS AND ATTACHMENTS

3.2 BUILDING DRIFT

3.3 CONDUIT, CABLETRAY, BUSWAY, AND RACEWAY

3.4 LIGHTING FIXTURES

3.4.1 Pendant Fixtures

3.4.2 Ceiling Attached Fixtures

3.4.2.1 Recessed Fixtures

3.4.2.2 Surface-Mounted Fixtures

3.4.3 Assembly Mounted on Outlet Box

3.4.4 Wall-Mounted Emergency Light Unit

3.5 ANCHORS

3.5.1 General

3.5.2 Cast-In-Place Anchors

3.5.3 Post-Installed Anchors

3.6 EQUIPMENT SUPPORT REQUIREMENTS

3.6.1 Suspended Equipment

3.6.2 Floor or Pad Mounted Equipment

3.6.2.1 Shear Resistance

3.6.2.2 Overturning Resistance

3.7 SPECIAL TESTING FOR SEISMIC-RESISTING COMPONENTS

3.8 SPECIAL INSPECTION FOR COMPONENTS, SUPPORTS, AND ATTACHMENTS

-- End of Section Table of Contents --

SECTION 26 05 48 Page 1

SECTION 26 05 48

SEISMIC PROTECTION FOR ELECTRICAL EQUIPMENT

11/23

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 SOCIETY OF MECHANICAL ENGINEERS (ASME)

ASME B18.21.1 (2009; R 2016) Washers: Helical Spring-Lock, Tooth Lock, and Plain Washers (Inch Series)

ASME B18.22M (1981; R 2017) Metric Plain Washers

AMERICAN WELDING SOCIETY (AWS)

AWS D1.1/D1.1M (2025) Structural Welding Code - Steel

ASTM INTERNATIONAL (ASTM)

ASTM A36/A36M (2019) Standard Specification for Carbon Structural Steel

ASTM A53/A53M (2024) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A153/A153M (2023) Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

ASTM A307 (2023) Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength

ASTM A500/A500M (2023) Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

ASTM A563 (2021; E 2022a) Standard Specification for Carbon and Alloy Steel Nuts

ASTM A572/A572M (2021; E 2021) Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel

ASTM A603 (2019) Standard Specification for Zinc-Coated Steel Structural Wire Rope

SECTION 26 05 48 Page 2

ASTM A992/A992M (2022) Standard Specification for Structural Steel Shapes

ASTM E580/E580M (2024a) Standard Practice for Installation of Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels in Areas Subject to Earthquake Ground Motions

ASTM F436 (2011) Hardened Steel Washers

ASTM F959/F959M (2017a; R 2023) Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners, Inch and Metric Series

ASTM F3125/F3125M (2019) Standard Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions 120 ksi and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile Strength

ICC EVALUATION SERVICE, INC. (ICC-ES)

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

INTERNATIONAL CODE COUNCIL (ICC)

ICC IBC (2024) International Building Code

METAL FRAMING MANUFACTURERS ASSOCIATION (MFMA)

MFMA-4 (2004) Metal Framing Standards Publication

U.S. DEPARTMENT OF DEFENSE (DOD)

UFC 3-301-01 (2023; with Change 3, 2025) Structural Engineering

UL SOLUTIONS (UL)

UL 1598 (2021; Reprint Jan 2024) UL Standard for Safety Luminaires

VIBRATION ISOLATION AND SEISMIC CONTROL MANUFACTURERS ASSOCIATION

(VISCMA)

VISCMA 413 (2014) Installing Seismic Restraints for Electrical Equipment

1.2 SYSTEM DESCRIPTION

1.2.1 General Requirements

Design and provide seismic supports and attachments in accordance with

UFC 3-301-01 .

SECTION 26 05 48 Page 3

Components, supports, and attachments must comply with following structural design criteria:

Risk Category: II .

Seismic Design Category: D .

Seismic Design Spectral Response Acceleration Parameter at Short Period (SDS): 0.547.

Seismic Design Spectral Response Acceleration Parameter at period of 1 second (SD1): 0.500.

Seismic relative displacement within structure between level 1 and level 2 (Dp): 2.5 inches.

Apply the seismic requirements described in this section and on the drawings to the electrical components listed in paragraph ELECTRICAL

COMPONENTS.

Electrical components and their supports must be attached or anchored to structure.

1.2.2 Electrical Components

Provide seismic supports and attachments for the following electrical components in accordance with the requirements of this specification:

Components with Importance Factor (Ip) = 1.0:

Light Fixtures Motors Storage Racks Transformers Distribution Systems Conduit, Cable Tray, and Raceway Utility and Service Lines

Components with Importance Factor (Ip) = 1.5 Designated Seismic Systems Fire detection and suppression systems Emergency exit lighting

1.2.3 Contractor Designed Supports and Attachments

Provide seismic supports and attachments for electrical components.

Contractor must retain services of a Registered Professional Engineer to design supports and attachments for electrical components. Supports and attachments, and isolation and energy dissipation systems that induce torsion in structural members are not permitted.

Submit copies of the Design Calculations and Design Drawings .

Calculations and Drawings must be stamped and signed by Contractor's Registered Professional Engineer.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government. Submit the following in accordance with Section

01 33 00 SUBMITTAL PROCEDURES:

SECTION 26 05 48 Page 4

SD-02 Shop Drawings

Equipment Requirements ; G

Lighting Fixtures ; G

SD-03 Product Data

Supports and Attachments ; G

Equipment Requirements ; G

Lighting Fixtures ; G

Flexible Fittings ; G

Anchors ; G

SD-05 Design Data

Design Calculations ; G

Design Drawings ; G

SD-06 Test Reports

Anchors ; G

SD-07 Certificates

ICC ES AC156 Shake Table Test ; G

PART 2 PRODUCTS

2.1 EQUIPMENT REQUIREMENTS

Equipment must be rugged enough to survive design seismic event.

Submit detail drawings of supports and attachments along with calculations, catalog cuts, templates, and erection and installation details, as appropriate, for the items listed in paragraph ELECTRICAL COMPONENTS.

Indicate thickness, type, grade, class of metal, and dimensions; and show construction details, reinforcement, anchorage, and installation with relation to the building construction.

Submit calculations and drawings that are stamped and signed by Contractor's registered professional engineer. Design must be based on actual equipment and system layout. Design must include calculated loads and capacity of materials utilized for the connection of the equipment or system to the structure. Analysis must detail anchoring methods. Include drawing for Designated Seismic System Equipment indicating the equipment location in the facility to be used for the installation. Equipment must be rigidly or flexibly mounted as indicated. Roof mounted equipment both vibration isolated and nonisolated, must have support members designed and anchored to building structure.

SECTION 26 05 48 Page 5

2.1.1 Rigidly (Base and Suspended) Mounted Equipment

The following specific items of equipment must be constructed and assembled to withstand the seismic forces specified in UFC 3-301-01 .

Entirely locate each item of rigid electrical equipment and rigidly attach on one side only of a building expansion joint. Provide items such as electrical conduit, which cross the building expansion joint with flexible joints that are capable of accommodating displacements equal to the full width of the joint in each orthogonal direction.

Transformers

Equipment furnished under this Contract must be rigidly mounted. For any rigid equipment which is rigidly anchored, provide flexible joints for electrical conduit, cabletray, busway, and raceway, that are capable of accommodating displacements equal to the full width of the joint in both orthogonal directions. Designated Seismic Systems (DSS) for RC IV buildings assigned to Seismic Design Category (SDC) C, D, E, or F and Risk Category IV components needed for continued operation after an earthquake must have two nuts provided on each bolt.

2.2 LIGHTING FIXTURES

Provide lighting fixtures and supports and attachments conforming to

UL 1598 .

2.3 SUPPORTS AND ATTACHMENTS

Material used for members listed in this section, must conform with the following:

a. Plates, rods, and rolled shapes, ASTM A36/A36M, ASTM A572/A572M Grade 50, or ASTM A992/A992M .

b. Wire rope, ASTM A603 pre-stretched, with Class C weight zinc-coated wires throughout rope. Connect rope at ends using ferrule or saddle-type wire rope clamp systems. Ferrule clamps must be qualified by testing for use in seismic applications per VISCMA 413 .

Saddle-type clamps must be used with minimum of two clamps at each end of wire rope.

c. Tubes, ASTM A500/A500M , Grade B.

d. Pipes, ASTM A53/A53M, Grade B.

e. Angles, ASTM A36/A36M.

f. Channels (Struts) with in-turned lips and associated hardware for fastening to channels at discrete points conforming to MFMA-4.

g. Fasteners:

(1) High-strength bolts, ASTM F3125/F3125M , Grade A325, heavy hex.

(2) Nuts, ASTM A563. Use heavy hex nuts for high strength bolts and anchor bolts.

(3) Washers, ASME B18.22M and ASME B18.21.1 , except use ASTM F436 washers for high strength bolts.

SECTION 26 05 48 Page 6

(4) Galvanized coating, ASTM A153/A153M .

(5) Direct Tension Indicator Washers, ASTM F959/F959M . Submit product data for direct tension indicator washers.

(6) Standard bolts, ASTM A307.

h. Anchor bolts:

(1) Cast in anchors: Refer to Section 05 12 00 STRUCTURAL STEEL and 05 50 13 MISCELLANEOUS METAL FABRICATIONS for requirements.

(2) Post-installed anchors: Refer to Section 05 05 20 POST-INSTALLED CONCRETE AND MASONRY ANCHORS for requirements.

i. Welding: Refer to Section 05 12 00 STRUCTURAL STEEL and Section 05 50 14 STRUCTURAL METAL FABRICATIONS for requirements.

2.4 FLEXIBLE FITTINGS

Provide flexible fittings to allow conduit, cabletray, busway, and raceway systems to accommodate seismic movement between equipment and conduit, cabletray, busway, and raceway systems and supporting structure. Use specification grade steel fittings conforming to Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM. Provide suitable expansion fittings that maintain electrical continuity by bonding jumper or other means. Flexible fittings must accommodate minimum of 4 inches seismic movement in each orthogonal directions.

PART 3 EXECUTION

3.1 SUPPORTS AND ATTACHMENTS

Provide supports and attachments with continuous load path to distribute electrical component seismic loads to structure.

Provide supports and attachments for electrical components that conform to UFC 3-301-01 requirements. Install vertical diagonal braces at a 45-degree slope. Where interference is present, the slope may be minimum of 30 degrees or a maximum of 60 degrees per VISCMA 413 .

Provide bolted and welded connections for supports and attachments in accordance with UFC 3-301-01 .

Provide welding in accordance with AWS D1.1/D1.1M . Grind visible welds smooth in the finished installation.

3.2 BUILDING DRIFT

Do not attach electrical components to two dissimilar structural elements of a building that may respond differentially during an earthquake unless a flexible joint is provided. Electrical components, supports, and attachments must be capable of accommodating building story drifts, deflections, and relative displacements.

3.3 CONDUIT, CABLETRAY, BUSWAY, AND RACEWAY

Provide supports and attachments for conduit, cabletray, busway, and raceway conforming to the requirements of UFC 3-301-01 .

SECTION 26 05 48 Page 7

3.4 LIGHTING FIXTURES

Provide lighting fixtures and supports conforming to the following:

3.4.1 Pendant Fixtures

Provide pendant fixtures conforming to the requirements of UFC 3-301-01 .

3.4.2 Ceiling Attached Fixtures

3.4.2.1 Recessed Fixtures

Support recessed individual or continuous-row mounted fixtures by a seismic-resistant suspended ceiling support system built in accordance with ASTM E580/E580M . Provide supports and attachments for the fixtures conforming to the requirements of UFC 3-301-01 . Recessed lighting fixtures not over 56 pounds in weight and not required to be supported separately from the structure, may be supported by and attached directly to the ceiling system runners using screws or bolts, number and size as required by the seismic design. Provide lock or screw attachments for fixture accessories, including diffusers and lenses.

3.4.2.2 Surface-Mounted Fixtures

Attach surface-mounted individual or continuous-row fixtures to a seismic-resistant ceiling support system built in accordance with Section 09 51 00 ACOUSTICAL CEILINGS. Provide supports and attachments for the fixtures conforming to the requirements of UFC 3-301-01 .

3.4.3 Assembly Mounted on Outlet Box

Design a supporting assembly, that is intended to be mounted on an outlet box, to accommodate mounting features on 4 inch boxes, plaster rings, and fixture studs.

3.4.4 Wall-Mounted Emergency Light Unit

Design and secure attachments for wall-mounted emergency light units for the worst expected seismic disturbance at the site.

3.5 ANCHORS

3.5.1 General

Submit copies of test results to verify the adequacy of the specific anchor and application, as specified. Ensure housekeeping pads have adequate space to mount equipment and seismic restraint devices allowing adequate edge distance and embedment depth for restraint anchor bolts.

Identify position of reinforcing steel and other embedded items prior to drilling holes for post-installed anchors. Do not drill holes in concrete or masonry until concrete, mortar, or grout has achieved full design strength. Fill annular gap with nonshrink grout at equipment anchor bolts where clearance between anchor and equipment support hole exceeds 0.125 inches.

3.5.2 Cast-In-Place Anchors

Use templates to locate cast-in-place bolts accurately and securely in

SECTION 26 05 48 Page 8 formwork. Provide anchor bolts with an embedded straight length with heavy hex nut and plate washer as shown on drawings to provide required strength and ductility. Anchor bolts that exceed the normal depth of equipment foundation piers or pads must either extend into concrete floor or the foundation or increase depth of the piers or pads to accommodate bolt lengths.

3.5.3 Post-Installed Anchors

Refer to Section 05 05 20 POST-INSTALLED CONCRETE AND MASONRY ANCHORS for requirements.

3.6 EQUIPMENT SUPPORT REQUIREMENTS

3.6.1 Suspended Equipment

Provide supports and attachments for components supported from structural systems. Provide supports and attachments that consist of angles, rods, wire rope, bars, channels (struts) or pipes arranged as shown in bracing submittals and secured at both ends with not less than 1/2 inch bolts.

Provide sufficient supports and attachments to resist seismic forces as specified in UFC 3-301-01 without exceeding capacity of structural components. Provide, for approval, specific force calculations in accordance with UFC 3-301-01 for the project.

Submit details of supports and attachments for acceptance. In lieu of bracing with vertical supports, these items may be supported with hangers inclined at 45 degrees directed up and radially away from equipment and oriented symmetrically in 90-degree intervals on the horizontal plane, bisecting the angles of each corner of the equipment, provided that supporting members are properly sized to support operating weight when hangers are inclined. Where interference is present, the inclined hanger slope may be minimum of 30 degrees or a maximum of 60 degrees per

VISCMA 413 .

3.6.2 Floor or Pad Mounted Equipment

3.6.2.1 Shear Resistance

Bolt components to floor or pads. Provide bolts to resist seismic forces in accordance with paragraph ANCHORS.

3.6.2.2 Overturning Resistance

Use the ratio of the overturning moment from seismic forces to the resisting moment due to gravity loads to determine if overturning forces need to be considered in the sizing of anchor bolts. Provide calculations to verify the adequacy of the anchor bolts for combined shear and tension. Provide bolts to resist seismic forces in accordance with paragraph ANCHORS.

3.7 SPECIAL TESTING FOR SEISMIC-RESISTING COMPONENTS

Electrical components designated as Designated Seismic Systems required to remain operational after an earthquake must be seismic qualified by shake table testing conforming to ICC ES AC156 Shake Table Test procedures. The manufacturer is to provide a certification by a fully qualified testing agency for the specific components. Prequalified certifications are acceptable unless noted otherwise.

SECTION 26 05 48 Page 9

Components that are required to be certified must bear permanent marking or nameplates constructed of a durable heat and water resistant material.

Provide component identification nameplates in accordance with UFC 3-301-01 .

Mechanically attach nameplates to electrical components.

3.8 SPECIAL INSPECTION FOR COMPONENTS, SUPPORTS, AND ATTACHMENTS

Perform special inspections for seismic-resisting systems, designated seismic systems, components, supports and attachments, and equipment per Section 01 45 35 SPECIAL INSPECTION attachment Schedule of Special Inspections and ICC IBC 1705.13.4; electrical components per ICC IBC 1705.13.6.

Provide a Final Special Inspection Report in accordance with UFC 3-301-01 .

-- End of Section --

SECTION 26 05 48 Page 10

SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

SECTION 26 05 73

POWER SYSTEM STUDIES

08/23

PART 1 GENERAL

1.1 REFERENCES

1.2 SYSTEM DESCRIPTION

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 System Analyzer

1.4.2 System Verifier

PART 2 PRODUCTS

PART 3 EXECUTION

3.1 FIELD EXAMINATION

3.1.1 General

3.1.2 Safety

3.1.3 Application of Arc Flash Labels

3.2 POWER SYSTEM STUDIES

3.2.1 Scope of Studies

3.2.2 Determination of Facts

3.2.3 Single Line Diagram

3.2.4 Load Flow Study

3.2.5 Fault Current Study

3.2.6 System Coordination Study

3.2.7 Arc Flash Hazard Study

3.2.8 Study report(s)

3.2.9 Arc Flash Labels

3.3 MODELING

-- End of Section Table of Contents --

SECTION 26 05 73 Page 1

SECTION 26 05 73

POWER SYSTEM STUDIES

08/23

PART 1 GENERAL

1.1 REFERENCES

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

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 1584 (2018; E 2019) Guide for Performing Arc-Flash Hazard Calculations

IEEE 1584.1 (2022) Guide for the Specification of Scope and Deliverable Requirements for an Arc-Flash Hazard Calculation Study

IEEE 3002.2 (2018) Recommended Practice for Conducting Load-Flow Studies and Analysis of Industrial and Commercial Power Systems

IEEE 3002.3 (2018) Recommended Practice for Conducting Short-Circuit Studies and Analysis of Industrial and Commercial Power Systems

IEEE C2 (2023) National Electrical Safety Code

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70E (2024) Standard for Electrical Safety in the Workplace

U.S. DEPARTMENT OF DEFENSE (DOD)

UFC 3-560-01 (2017; with Change 3, 2023) Operation and Maintenance: Electrical Safety

1.2 SYSTEM DESCRIPTION

The power system covered by this specification consists of: Medium voltage distribution from an existing sectionalizing cabinet to the facility service transformer, the facility service transformer, and premises power distribution for the facility and associated site features..

1.3 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government. Submit the following in accordance with Section

SECTION 26 05 73 Page 2

01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Field Examination Plan ; G

Arc Flash Label Formats ; G

SD-06 Test Reports

Field Examination

SD-07 Certificates

System Analyzer ; G

SD-11 Closeout Submittals

Model Files ; G

Load Flow Study ; G

Fault Current Study ; G

System Coordination Study ; G

Arc Flash Hazard Study ; G

1.4 QUALITY ASSURANCE

1.4.1 System Analyzer

The System Analyzer must perform the power system studies. The System Analyzer must be a registered professional electrical engineer with a minimum of 3 years of experience with power system studies. Include a list of three comparable jobs performed by the System Analyzer with specific names and telephone numbers for reference. Include the license number and state of the registered Professional Engineer.

1.4.2 System Verifier

The System Verifier may inspect and record settings, markings, and otherwise document the existing equipment. The System Verifier may also place appropriate hazard labels on equipment. The System Verifier must not make any calibrations or adjustments or place equipment into service.

When working with energized equipment, the system verifier must be a Qualified Person per NFPA 70E or working under the direct supervision of a Qualified Person.

PART 2 PRODUCTS

Not used.

PART 3 EXECUTION

3.1 FIELD EXAMINATION

For each pre- and post-study inspection, submit a field examination plan identifying which facilities must be examined to complete the required

SECTION 26 05 73 Page 3 work. Include a complete information verification procedure, where Qualified Personnel will be required, PPE requirements for "live" equipment examinations, and equipment to be used within the limited approach boundary of the equipment.

3.1.1 General

Perform field inspections of the site and equipment before the first study and after the last study to determine the state and settings of the equipment and to verify the final settings agree with the studies.

Perform the post-study inspection(s) after changing settings, after performing acceptance tests, and before placing equipment in service.The post-study inspection may be performed by the testing organization approved in 26 08 00 APPARATUS INSPECTION AND TESTING.

Schedule the field examination by the System Verifier with the Contracting Officer at least 10 business days before conducting examination. Furnish all materials, labor, and equipment necessary to conduct the examination.

Maintain a written record of the all equipment examined, equipment location, equipment ratings, settings, personnel involved, and the date the examination was performed. Submit the written record of each field examination .

3.1.2 Safety

Where examination of the equipment requires energized equipment to be opened, provide a Qualified Person to directly supervising any non-Qualified Person within the hazard area. Use PPE, protective barriers, danger signs and other safety devices to protect and warn personnel in the vicinity of "live" equipment being examined.

3.1.3 Application of Arc Flash Labels

Install arc flash warning labels using Qualified Personnel as necessary after the setting and inspection is complete. For new or modified equipment, install labels before the equipment is energized for the first time after installation/modification or setting changes. Schedule the label placement with the Contracting Officer at least 5 business days before label placement. Furnish all materials, labor, and equipment necessary to place the labels. Maintain a written record of the all equipment that received labels, personnel involved, and the date labels were placed.

3.2 POWER SYSTEM STUDIES

Perform power system studies to demonstrate that the equipment selected and system constructed meet the contract requirements for fault current and interrupt ratings, coordination, protection, and Arc Flash Hazard.

Submit reports of the studies along with protective device equipment submittals. Apply Arc Flash Hazard labels to equipment after the studies are approved. Update and resubmit the studies after any changes to the equipment or systems which may affect the study results, and re-apply Arc Flash Hazard labels to equipment after the resubmitted studies are approved. The Government is not responsible for any changes to equipment, device ratings, settings, or additional labor for installation of equipment or devices or labels ordered and/or procured before approval of the study.

SECTION 26 05 73 Page 4

3.2.1 Scope of Studies

The scope of the studies must begin at the utility service entrance of the building and extend down to load buses/panels where the fault current is 2,000 amperes or less (symmetrical) for distribution buses nominally operating at 208 volt AC and above.

The "source bus" is the source of energy for system being analyzed. This may be the energy feed from a utility, the first bus upstream of the work, generators within the work or upstream of the work, or any other source capable of contributing significant energy into the system being analyzed.

In the systems model for the studies, incorporate all existing and new equipment within the scope of the studies. Incorporate any additional sources or load equipment necessary to accurately model the system's performance.

Where multiple sources of power may be in service in various combinations or where electrical loops are in the system, incorporate into the studies all the modes of operation to evaluate the impact of the modes of operation on the system.

3.2.2 Determination of Facts

Determine and document the time-current characteristics, features, ratings, ampacities, and nameplate data for each existing protective device, electrical equipment, and feeder cables. Obtain the available fault current from the owner of the source bus.

3.2.3 Single Line Diagram

Provide a single line diagram showing the electrical system buses, devices, transformation points, and all sources of load current and fault current, including generator and motor contributions. Provide a diagram from the system model. Each bus, device or transformation point must have a unique identifier. Show the location of switches, breakers, and circuit interrupting devices on the diagram together with available fault data, and the device interrupting rating.

The naming of existing components within the system model and single line diagram must match existing installed equipment names. The naming of new components within the system model and single line diagram must use unique identifiers and be coordinated with the Government.

3.2.4 Load Flow Study

Perform the load flow study in accordance with IEEE 3002.2 to identify initital steady-state conditions for the fault current study. For each operating scenario, provide load flow results on the diagram or in the report. Show or describe the loading factors and assumptions used in each operating mode.

3.2.5 Fault Current Study

Use the results of the load flow study to perform the fault current study in accordance with IEEE 3002.3 . Provide balanced three-phase fault, bolted line-to-line fault, and single line-to-ground fault current values at each voltage transformation point and at each power distribution bus.

For each location, show in tabular form on the diagram or in the report

SECTION 26 05 73 Page 5 the maximum and minimum available fault currents of all modes of operation for that location.

Where the available fault current at the source bus is not available, describe how the fault contribution from the source bus was determined and why this method is reasonable for the study.

3.2.6 System Coordination Study

Use the results of the load flow study and fault current study. For normal modes of operation, demonstrate that selectivity has been obtained between the devices within the scope of the project. Demonstrate the equipment, machines, and conductors are protected from damage from overloads and fault conditions. Include a description of the coordination of the protective devices in this project. Provide a written narrative describing which devices may operate in the event of a fault at each bus;

the logic used to arrive at device ratings and settings; situations where system coordination is not achievable due to device limitations;

coordination between upstream and downstream devices; and relay settings.

Provide recommendations to improve or enhance system reliability, and detail where such changes would involve additions or modifications to the contract and cost damages (addition or reduction). Provide composite coordination plots on a log-log scale. Where recommendations are provided to improve or enhance system reliability, provide separate coordination plots on log-log scale showing the system coordination before and after the implementation of the recommendations. Where coordination has been adjusted to lower arc flash values, include a discussion of the change and the impact on the system within the report.

3.2.7 Arc Flash Hazard Study

Perform the arc flash hazard study in accordance with IEEE 1584.1 .

Utilize the data from the fault current study to determine the worst case incident energy per IEEE 1584 , IEEE C2 , and OSHA 29 CFR 1910.269 Appendix E. Use identified modes of operation to determine the worst case arc flash energy. If not included in another study, include a description of the devices and device settings for the operating modes that provided the highest arc flash energy. The use of a "maintenance switch" to temporarily reduce the Arc Flash incident energy for maintenance work is acceptable. Where the adjusting the coordination of devices to obtain lower arc flash values, include a discussion of the change and the impact on the system within the report. .

Where the AC system voltage is 208 volts or less with an available short-circuit current less than 2000 A, an arc flash hazard study is not required.

3.2.8 Study report(s)

a. Include a narrative describing the studies performed; the bases and methods used; and the desired method of coordinated protection of the power system.

b. Include descriptive and technical data for existing devices and new protective devices proposed. Include manufacturers published data, nameplate data, and definition of the fixed or adjustable features of the existing or new protective devices. For existing devices, included statements on the condition of the equipment based upon field

SECTION 26 05 73 Page 6 inspections and owner's statements and reports.

c. Document source data including system voltages, fault MVA, system X/R ratio, time-current characteristic curves, current transformer ratios, and relay device numbers and settings; . Identify all assumptions about the protection devices, equipment, and system where data was not available.

d. For each bus in the system, provide fully coordinated composite time-current characteristics (TCC) curves as required to ensure coordinated power system protection between protective devices and equipment. In a tabular format, provide recommended ratings and settings of all protective devices.

e. Provide an arc flash study report in accordance with IEEE 1584.1 .

f. Provide the calculations performed for the studies, including computer programs utilized. Provide the name of the software package, developer, and version number.

f. The System Analyzer must stamp the study reports.

3.2.9 Arc Flash Labels

Provide arc flash warning labels on electrical equipment likely to require examination, servicing, or maintenance while energized. Typical types of equipment include pad-mounted transformers, switchgear, switchboards, panelboards, disconnect switches, industrial control panels, meter socket enclosures, and motor control centers that are in other than dwelling occupancies. The arc flash label naming must match the naming used in the system modeling and the single line diagram.

Comply with the label requirements specified in UFC 3-560-01 NFPA 70E.

Obtain approval of arc flash label formats before printing.

a. Provide a 3.5 inch x 5 inch to 4 inch x 6 inch thermal transfer type label of high adhesion polyester for each location device analyzed.

The label must remain in place and be legible for at least 5 years in the installed environment.

b. Labels must be machine printed with no field markings. Provide arc flash labels in the following manner. All labels must be based on implemented overcurrent devices and settings.

1. Provide at least one arc flash label for each 480 volt and 208 volt panelboards.

2. Provide at least one arc flash label for each low voltage (less than 1000 V) switchboard.

3. Where the equipment construction has different hazards levels in different areas, provide a single label representing the worst case hazard for all branch circuits and a separate unique label for the compartment containing the main protective device. On the worst case label, indicate which branch circuit compartments have the worst case hazard.

c. Use the worst case hazard of all operating scenarios unless mitigation procedures are used. If mitigation procedures are used, explain the

SECTION 26 05 73 Page 7 procedures on the label.

3.3 MODELING

Develop a software model of the electrical system identified in the scope of the studies. Use the latest version of SKM PowerTools(TM) or EasyPower(TM). Develop the model with accurate, verified information.

Model existing electrical equipment, machines, devices, and conductors directly connected to, altered by, or otherwise affected by the work. This includes, but is not limited to generators, transformers, switchgear, switchboards, panelboards, motor control centers, motors, voltage regulators, tap changers, protective relays, circuit breakers, switches, fuses, conductors, capacitors, reactors, grounding system, and control equipment.

Provide the final model files in their native editable formats for future use by the Government. Include device information for devices not in the software vendor's standard distribution.

-- End of Section --

SECTION 26 05 73 Page 8

SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

SECTION 26 08 00

APPARATUS INSPECTION AND TESTING

11/22

PART 1 GENERAL

1.1 REFERENCES

1.2 RELATED REQUIREMENTS

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 Qualifications

1.4.2 Acceptance Tests and Inspections Reports

1.4.3 Acceptance Test and Inspections Procedure

PART 2 PRODUCTS

PART 3 EXECUTION

3.1 ACCEPTANCE TESTS AND INSPECTIONS

3.2 SYSTEM ACCEPTANCE

3.3 PLACING EQUIPMENT IN SERVICE

-- End of Section Table of Contents --

SECTION 26 08 00 Page 1

SECTION 26 08 00

APPARATUS INSPECTION AND TESTING

11/22

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.

INTERNATIONAL ELECTRICAL TESTING ASSOCIATION (NETA)

NETA ATS (2021) Standard for Acceptance Testing Specifications for Electrical Power Equipment and Systems

1.2 RELATED REQUIREMENTS

Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM applies to this section with additions and modifications specified herein.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government. Submit the following in accordance with Section

01 33 00 SUBMITTAL PROCEDURES:

SD-06 Test Reports

Acceptance Tests and Inspections ; G

SD-07 Certificates

Qualifications of Organization, and Lead Engineering Technician; G

Acceptance Test and Inspections Procedure ; G

1.4 QUALITY ASSURANCE

1.4.1 Qualifications

Engage the services of a qualified testing organization to provide inspection, testing, calibration, and adjustment of the electrical distribution system and generation equipment listed in paragraph ACCEPTANCE TESTS AND INSPECTIONS herein. Organization must be independent of the supplier, manufacturer, and installer of the equipment. The organization must be a first tier subcontractor. No work required by this section of the specification may be performed by a second tier subcontractor.

SECTION 26 08 00 Page 2

a. Submit name and qualifications of organization. Organization must have been regularly engaged in the testing of electrical materials, devices, installations, and systems for a minimum of 5 years. The organization must have a calibration program, and test instruments used must be calibrated in accordance with NETA ATS.

b. Submit name and qualifications of the lead engineering technician performing the required testing services. Include a list of three comparable jobs performed by the technician with specific names and telephone numbers for reference. Testing, inspection, calibration, and adjustments must be performed by an engineering technician, certified by NETA (Level III) or the National Institute for Certification in Engineering Technologies (NICET) with a minimum of 5 years' experience inspecting, testing, and calibrating electrical distribution and generation equipment, systems, and devices.

1.4.2 Acceptance Tests and Inspections Reports

Submit certified copies of inspection reports and test reports. Include certification of compliance with specified requirements, identify deficiencies, and recommend corrective action when appropriate. Type and neatly bind test reports to form a part of the final record. Submit test reports documenting the results of each test not more than 10 days after test is completed.

1.4.3 Acceptance Test and Inspections Procedure

Submit test procedure reports for each item of equipment to be field tested at least 45 days prior to planned testing date. Do not perform testing until after test procedure has been approved.

PART 2 PRODUCTS

Not used.

PART 3 EXECUTION

3.1 ACCEPTANCE TESTS AND INSPECTIONS

Testing organization will perform acceptance tests and inspections. Test methods, procedures, and test values must be performed and evaluated in accordance with NETA ATS, the manufacturer's recommendations, and paragraph FIELD QUALITY CONTROL of each applicable specification section.

Tests identified as optional in NETA ATS are not required unless otherwise specified. Place equipment in service only after completion of required tests and evaluation of the test results have been completed. Supply to the testing organization complete sets of shop drawings, settings of adjustable devices, and other information necessary for an accurate test and inspection of the system prior to the performance of any final testing. Notify Contracting Officer at least 14 days in advance of when tests will be conducted by the testing organization. Perform acceptance tests and inspections on applicable equipment and systems specified in the following sections:

b. Section 26 12 19 PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE

TRANSFORMERS

e. Section 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION. Medium voltage cables and grounding systems only.

SECTION 26 08 00 Page 3

3.2 SYSTEM ACCEPTANCE

Final acceptance of the system is contingent upon satisfactory completion of acceptance tests and inspections.

3.3 PLACING EQUIPMENT IN SERVICE

A representative of the approved testing organization must be present when equipment tested by the organization is initially energized and placed in service.

-- End of Section --

SECTION 26 08 00 Page 4

SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

SECTION 26 12 19

PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE TRANSFORMERS

05/24

PART 1 GENERAL

1.1 REFERENCES

1.2 RELATED REQUIREMENTS

1.3 DEFINITIONS

1.4 SUBMITTALS

1.4.1 Reduced Submittal Requirements

1.5 QUALITY ASSURANCE

1.5.1 Pad-Mounted Transformer Drawings

1.5.2 Regulatory Requirements

1.5.3 Standard Products

1.5.3.1 Alternative Qualifications

1.5.3.2 Material and Equipment Manufacturing Date

1.6 MAINTENANCE

1.6.1 Additions to Operation and Maintenance Data

PART 2 PRODUCTS

2.1 PRODUCT COORDINATION

2.2 THREE-PHASE PAD-MOUNTED TRANSFORMERS

2.2.1 Compartments

2.2.1.1 High Voltage, Dead-Front

2.2.1.2 Low Voltage

2.2.2 Transformer

2.2.2.1 Specified Transformer Efficiencies

2.2.3 Insulating Liquid

2.2.3.1 Liquid-Filled Transformer Nameplates

2.2.4 Corrosion Protection

2.3 WARNING SIGNS AND LABELS

2.4 ARC FLASH WARNING LABEL

2.5 GROUNDING AND BONDING

2.6 PADLOCKS

2.7 CAST-IN-PLACE CONCRETE

2.8 SOURCE QUALITY CONTROL

2.8.1 Transformer Test Schedule

2.8.2 Design Tests

2.8.3 Routine and Other Tests

PART 3 EXECUTION

3.1 INSTALLATION

3.2 GROUNDING

3.2.1 Grounding Electrodes

3.2.2 Pad-Mounted Transformer Grounding

3.2.3 Connections

3.2.4 Grounding and Bonding Equipment

SECTION 26 12 19 Page 1

3.3 INSTALLATION OF EQUIPMENT AND ASSEMBLIES

3.4 FIELD APPLIED PAINTING

3.5 FOUNDATION FOR EQUIPMENT AND ASSEMBLIES

3.5.1 Cast-In-Place Concrete

3.6 FIELD QUALITY CONTROL

3.6.1 Performance of Acceptance Checks and Tests

3.6.1.1 Pad-Mounted Transformers

3.6.1.2 Grounding System

3.6.1.3 Surge Arresters, Medium- and High-Voltage

3.6.2 Follow-Up Verification

-- End of Section Table of Contents --

SECTION 26 12 19 Page 2

SECTION 26 12 19

PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE TRANSFORMERS

05/24

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.

ASTM INTERNATIONAL (ASTM)

ASTM A240/A240M (2024) Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM D92 (2012a) Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester

ASTM D97 (2017b) Standard Test Method for Pour Point of Petroleum Products

ASTM D877/D877M (2019) Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes

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

FM GLOBAL (FM)

FM APP GUIDE (updated on-line) Approval Guide https://www.approvalguide.com/

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 386 (2016) Separable Insulated Connector Systems for Power Distribution Systems Rated 2.5 kV through 35 kV

IEEE C2 (2023) National Electrical Safety Code

IEEE C37.47 (2011) Standard for High Voltage Distribution Class Current-Limiting Type Fuses and Fuse Disconnecting Switches

IEEE C57.12.00 (2021)…