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1. Scope

This specification covers the design, materials, fabrication, welding, inspection, testing,protective coatings, drawings, and delivery of steel structures for use in overhead electrictransmission lines. The manufacturer shall include all field bolts, locknuts, vangs, and attachmentprovisions for arms and/or insulators, anchor bolts, base plates, and other necessary items tomake a complete structure.

This material specification is being used on a project for the following company:

AltaLinkMidAmerican EnergyNV EnergyPacifiCorp

2. Related Industry Standards

All structures shall conform to this specification and to specifications, dimensions, manufacturing,storage, and handling set forth in the most current version of the following standards, including, butnot limited to:

Companywide Standards

ASCE (American Society of Civil Engineers) 48, Design of Steel Transmission Pole Structures

ASCE Manual of Practice (MOP) 74, Guidelines for Electrical Transmission Line StructuralLoading

ASCE MOP 91, Design of Guyed Electrical Transmission Structures

ASTM (American Society for Testing and Materials) A6, Standard Specification for GeneralRequirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling

ASTM A36, Standard Specification for Carbon Structural Steel

ASTM A123, Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and SteelProducts

ASTM A143, Standard Practice for Safeguarding Against Embrittlement of Hot-Dip Gal-vanized Structural Steel Products and Procedure for Detecting Embrittlement

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

ASTM A239, Standard Practice for Locating the Thinnest Spot in a Zinc (Galvanized) Coatingon Iron or Steel Articles

Material Specification Page 1 of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

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EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

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

ASTM A325, Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Min-imum Tensile Strength

ASTM A350, Standard Specification for Carbon and Low-Alloy Steel Forgings, RequiringNotch Toughness Testing for Piping Components

ASTM A354, Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs,and Other Externally Threaded Fasteners

ASTM A370, Standard Test Methods and Definitions for Mechanical Testing of Steel Products

ASTM A384, Standard Practice for Safeguarding Against Warpage and Distortion During Hot-Dip Galvanizing of Steel Assemblies

ASTM A385, Standard Practice for Providing High-Quality Zinc Coatings (Hot-Dip)

ASTM A388, Standard Practice for Ultrasonic Examination of Steel Forgings

ASTM A394, Standard Specification for Steel Transmission Tower Bolts, Zinc-Coatedand Bare

ASTM A435, Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates

ASTM A449, Standard Specification for Hex Cap Screws, Bolts and Studs, Steel, HeatTreated, 120/105/90 ksi Minimum Tensile Strength, General Use

ASTM A563, Standard Specification for Carbon and Alloy Steel Nuts

ASTM A572, Standard Specification for High-Strength Low-Alloy Columbium-VanadiumStructural Steel

ASTM A581, Standard Specification for Free-Machining Stainless Steel Wire and Wire Rods

ASTM A588, Standard Specification for High-Strength Low-Alloy Structural Steel, up to 50 ksi[345 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance

ASTM A595, Standard Specification for Steel Tubes, Low-Carbon or High-Strength Low-Alloy, Tapered for Structural Use

ASTM A615, Standard Specification for Deformed and Plain Carbon-Steel Bars forConcrete Reinforcement

ASTM A633, Standard Specification for Normalized High-Strength Low-Alloy StructuralSteel Plates

ASTM A673, Standard Specification for Sampling Procedure for Impact Testing ofStructural Steel

ASTM A780, Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Gal-vanized Coatings

Material Specification Page 2 of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

ASTM A871, Standard Specification for High-Strength Low-Alloy Structural Steel Plate WithAtmospheric Corrosion Resistance

ASTM E165, Standard Practice for Liquid Penetrant Examination for General Industry

ASTM E709, Standard Guide for Magnetic Particle Testing

ASTM E1444, Standard Practice for Magnetic Particle Testing

ASTM F436, Standard Specification for Hardened Steel Washers Inch and Metric Dimensions

ASTM F2329, Standard Specification for Zinc Coating, Hot-Dip, Requirements for Applicationto Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners

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

ACI (American Concrete Institute) 318, Building Code Requirements for Structural Concreteand Commentary

AWS (American Welding Society) B1.10, Guide for the Nondestructive Examination of Welds

AWS C2.18, Guide for the Protection of Steel with Thermal Sprayed Coatings of Aluminumand Zinc and Their Alloys and Composites

AWS D1.1, Structural Welding Code — Steel

AWS D1.4, Structural Welding Code —Steel Reinforcing Bars

AWS QC1, Standard for AWS Certification of Welding Inspectors

ANSI/NESC (American National Standards Institute/National Electric Safety Code) C2

AISC (American Institute of Steel Construction) 325, Manual of Steel Construction

ASME (American Society of Mechanical Engineers) B18.2.2, Nuts for General Applications:Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts

ASME B18.2.6, Fasteners for Use in Structural Applications

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

CSA W59, Welded Steel Construction (Metal Arc Welding)

SSPC (Steel Structures Painting Council) SP 6, Commercial Blast Cleaning

SSPC SP 7, Brush-Off Blast Cleaning

SSPC SP 10, Near-White Blast Cleaning

Canada-Specific Standards

CSA C22.3 No. 1 Overhead Systems

CSA C83 Communication and Power Line Hardware

Material Specification Page 3 of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

In the case of a conflict between this specification and the referenced codes and standards, themore stringent requirement shall be followed. In the case of a conflict between the attacheddrawings and either this specification or the referenced codes and standards, the attacheddrawings shall be followed. If clarification is necessary, contact the company.

3. Definitions

The following definitions apply to terms used in this specification:

Cambering. The fabricating of a slight convex curve in a pole or crossarm.

Company. AltaLink, MidAmerican Energy Company, NV Energy, and PacifiCorp.

D/T. The ratio of the diameter of a tubular pole to the steel plate thickness.

Engineer. A registered or licensed person, either on staff or an outside consultant, who providesengineering services. “Engineer” also refers to duly-authorized assistants and representatives ofthe licensed person.

Groundline. A designated location on the structure identifying where the surface of the groundafter installation of a direct-embedded structure.

Height. Full length of pole except in pre-camber and raking cases.

Keeper. A device or technique used to prohibit pole slip joint movement.

Load factor (LF). A multiplier applied to each of the vertical, transverse, and longitudinalstructure loads to obtain an ultimate load.

Manufacturer. The manufacturer or distributor selected by the company to provide a product orservice in accordance with this specification.

PacifiCorp. Pacific Power and Rocky Mountain Power.

P-delta (P- ) moment. A secondary moment created by the loads acting on the structure whenthe structure deflects from its unloaded position.

Point of fixity. The location on the pole at the groundline or below the groundline where themaximum moment occurs.

Raking. The practice of installing a straight pole out of plumb, or at an inclined angle, tocompensate for everyday loading structure deflection when cambering is not provided.

W/T. The ratio of the width of a single pole flat to the plate thickness.

Ultimate load. The maximum design load including the appropriate load factor specified.

UNC. Unified Coarse Threads.

4. General Requirements

The design, fabrication, allowable stresses, processes, tolerances, and inspection shall be theresponsibility of the manufacturer and shall conform to the requirements noted herein. It is themanufacturer’s responsibility to include the effect of fabrication tolerances in the structure design.Specification drawing distances are minimum values. Award of this work does not constitute

Material Specification Page 4 of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

approval of design calculations submitted with the bid. If corrections are required in the final designdue to manufacturer’s error, omission, or misinterpretation of this specification, the quoted priceshall not change.

5. Design

5.1. Structural Design

Structure designs shall be prepared according to Appendix A. The structure shall be capable ofwithstanding all specified loading cases, but shall not consider the possible restraining effect ofconductors or shield wires. The structure shall withstand the loads without failure, permanentdistortion, or exceeding any specified deflection limitations.

The P-delta (P- ) moment nonlinear effects of each specified engineered structure in itsdeflected condition shall be included in the design of each specified engineered structure. Allspecification drawings represent minimum design requirements.

5.2. MaximumDesign Unit Stress

The maximum design unit stress shall be the minimum yield strength for the grade of steelspecified as stated in applicable ASTM specifications for the particular application and types ofloads, including load factors.

5.3. Joints

Structures shall be designed with a minimum number of joints. Field welding shall not beallowed as part of the design of a new structure. Shaft joints shall be slip joints or boltedflange joints, unless otherwise specified in Appendix A.

For structures with an anticipated axial design loading greater than 90,000 pounds (400 kN) at afield joint location, flange plate connections must be used between pole sections. All switchpoles and rigidly framed H-frame structures shall also be designed with flange plate connectionsbetween pole sections. The manufacturer may provide alternative field connection types, i.e.,slip joints that include keepers to be used with rigidly framed H-frames. Such alternativeproposals shall contain all calculations and sketches of the system. The use of alternativelyproposed systems shall be at the company’s discretion.

The manufacturer shall verify the slip joint fit before shipment. Joints should not interfere witharm connections, step nuts, ladder clips, jacking lugs, etc.

Sufficient jacking lugs and permanent orientation marks shall be provided at all slip joints toensure proper alignment and complete overlap of the joint.

The manufacturer shall provide pole section jacking instructions, recommended jackingequipment manufacturer and model information, minimum jacking pressure/force required toprovide for sufficient structural integrity, and grounding between structure sections.

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EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

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EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

5.4. Anchor Bolts

When anchor bolts are specified, the design of anchor bolts shall be in accordance with thelatest edition of ASCE 48, assuming a concrete strength (f′c) of 3500 psi at 28 days.

The top 18″ (457 mm) of each anchor bolt shall be galvanized. Anchor bolts shall be threaded atthe top end at a distance equal to the base plate thickness plus the thickness of two anchor boltnuts, plus 2½″ (63.5 mm). Each anchor bolt shall include two galvanized heavy hex nuts.

Two nuts shall be used, one for leveling and one for tightening. The tightening nut may be fieldtack-welded to the base plate for a short length following the final installation to prevent theft ofthe nuts from the structure. The manufacturer shall design the base plate in such a way thatthis subsequent weld shall not void any warranties provided by the manufacturer.

Welding on anchor bolts will only be allowed in the bottom 12″ (305 mm). Only one length ofanchor bolt shall be used on each cage. Splicing of anchor bolts shall not be allowed. Anchorbolts/clusters shall be plainly marked to indicate the structure type, structure number,orientation, and top of concrete. The distance between anchor bolts shall not be less than sixinches (6″ / 152 mm) measured center-to-center.

Unless otherwise noted in Appendix A, anchor bolts shall be designed to be shipped as a rigidcage with top and bottom plates and plates at 10' (3.05 m) intervals in between holding theanchor bolts in place. The anchor bolt threads shall be protected during shipping. The anchorbolts shall be welded to the holding plate in the bottom of the cage. The welding of anchor boltsis restricted to only bottom nonstressed areas. The top template shall be designed to beremovable and to support the assembled cage during lifting and setting operations withoutdetrimental deformations. Bolt clusters shall be designed to be rigid enough to withstand thenormal jolts of shipping, handling, and installation with no permanent deformation of templateand no displacement of bolts from the proper positions within the cluster.

The removable template at the top shall be marked to show the centerline for tangent structuresand the angle bisector for angle structures. There shall be matching marks on the base plate ofthe structure so proper alignment can be made.

When so specified in Appendix A, the manufacturer shall provide anchor bolt templatealterations for sonic testing tubes.

5.5. Plate Thickness for Poles and Arms

The minimum plate thickness for all pole components shall be 3/16 inches (4.8 mm).

The W/T ratio shall be limited to a maximum of 34.

5.6. Embedment

Structures that are to be direct embedded shall have bearing plates with a diameter not morethan two inches (2″ / 51 mm) greater than the maximum pole diameter, unless otherwisespecified in Appendix A. Weathering steel and painted structures shall be metalized for theentire embedment. A protective coating shall be applied from three feet (3' / 0.91 m) above thegroundline to seven feet (7' / 2.1 m) below the groundline, unless otherwise specified in

Material Specification Page 6 of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

Appendix A. The manufacturer shall permanently mark groundline with a two inch (2″ / 51 mm)weld bead or other suitable mark.

5.7. Tapering

Poles shall have a uniform taper throughout their entire length. Variable taper poles shall not beproposed without prior consent from the company. However, zero tapered sections belowgroundline for direct-buried structures are allowed without company consent.

Taper ranges for all specified structures shall be limited as follows:

Unguyed tangents < 20° and all guyed structures: 0.1″ – 0.3″ per foot (8.3 mm – 25 mm permeter)

Unguyed tangents ≥ 20° and all unguyed deadends: 0.25″ – 0.45″ per foot (21 mm – 38 mmper meter)

5.8. Deflection Criteria

Pre-cambering of poles shall be required for all poles with a pole top deflection that eitherexceeds one (1) percent of the structure height above ground or 12″ (305 mm), under the pre-camber condition specified in Appendix A. The pre-camber load case will be 60 °F (15.5 °C),no wind, no ice, no load factor, except in Alberta, Canada and Wyoming where 32 °F (0 °C),no wind, no ice, no load factor and in Southern Nevada where 80 °F (27 °C), no wind, no loadfactor will be used. Structure height for deflection and pre-cambering cases shall be the heightof the structure from the top of the base plate, or designated groundline, to the top of thestructure.

Pre-camber or raking of poles shall be designed to compensate for the deflection of poles underthe specified load case so that the tops of the affected poles will stand vertically plumb above thecenter of the pole at its groundline. Poles that do not exceed one (1) percent of the structureheight or 12″ (305 mm) pre-camber criteria shall be raked during construction. The polemanufacturer shall provide instructions in tabular form as to the proper amount of rake to applyduring the installation of the pole.

5.9. Arms

The arms shall be designed so the end of the arm is at the specified height under a loading ofinitial conductor tension, 60 °F / 15.6 °C (32 °F / 0 °C for structures to be delivered to Alberta,Canada and Wyoming), no wind, and no load factors. Arms shall not deflect vertically morethan 0.83 inches per foot (69 mm per meter), up to a maximum of 12″ (305 mm), at the end ofthe arm under heavy ice conditions (without any load factors applied).

Arms shall be upswept or straight, tapered, steel tubular members, of any cross-sectional typethat meet the dimensions shown on Appendix A.

The arms shall be sealed when a painted finish is specified. Galvanized arms shall have drainholes where appropriate. If weathering steel is used for the arms, attachments and the arm shallbe designed to avoid trapping or holding moisture.

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EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

All attachments and crossarms shall be aligned with the base and/or the base plate according toorientation in Appendix A. Location of these attachments during fabrication shall be determinedafter the pole shaft welding is complete. A maximum permissible rotation from Appendix A istwo (2) degrees of arc. Any two arm connections shall not deviate more than two (2) degreesfrom each other. The attachment and arm rotation is independent of the pole rotation noted in" Tolerances" on page 12 These two arcs are not additive.

5.10. Lifting Attachments

Lifting attachments are required. The manufacturer shall supply all instructions for handling,assembly, and erection of structures and arms.

5.11. Connections

In the design of connections for vangs, brackets, or stiffeners attached to the pole shaft, careshall be taken to distribute the loads sufficiently to protect the wall of the pole from localbuckling, fatigue, and tear out. Vangs, brackets, and other connection members shall bedesigned to prevent tear out, shear failure, and buckling of the members.

5.12. Moisture Intrusion

Weathering and painted steel structures shall be designed to eliminate water and refuse traps after assembly. Tubular sections shall be sealed from moisture entering the inside of the pole, except that female slip joint sections shall remain open to allow water to escape after erection. Factory-drilled pole holes shall be plugged to prevent moisture intrusion during shipping. The manufacturer shall take care to ensure hole plugs do not fall out during shipment. For field-drilled poles and factory-drilled poles, the manufacturer shall provide silicone sealant to seal all through-bolt holes. When assembled, non-drilled poles shall be effectively sealed to prevent moisture intrusion. Plastic plugs shall be installed in all nuts welded to the structure and on all tapped holes.

Galvanized poles shall have a drain hole at the bottom. Poles with a painted or metalizedfinish shall be sealed at the bottom to prevent moisture from entering the shafts, unlessotherwise specified in Appendix A.

5.13. Vibration

The manufacturer shall evaluate and take the necessary measures to minimize the potentialfor vibrations caused by wind-induced vortex shedding of structure members. Themanufacturer shall provide dampers or spoilers as required to eliminate vibrations, orrecommendations for avoidance of vibrations.

5.14. Foundation Rotation

Allowance shall be made in all anchor bolt structures for a foundation rotation of one (1)degree from vertical. All structures shall be designed to resist without failure all loading appliedto the corresponding deflected shape of the structure.

Material Specification Page 8 of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

5.15. Animal Protection

The pole and arm designs shall include solid covers over holes to prevent birds, insects, and other animals from entering the pole or crossarm. Many pole and arm designs include hole covers; however, the company cannot anticipate where all holes are needed for galvanizing or other manufacturing processes. It is the responsibility of the manufacturer to provide animal covers where necessary. At a minimum, the pole top and arm ends shall have solid covers. Pole top plates and arm cover plates shall be attached via bolting for galvanized poles. All covers shall have the same protective coating as the pole applied prior to their attachment to the pole or arm.

5.16. Anchor Bolt Structures

The manufacturer shall provide standard designs and pricing for each specified anchor boltstructure. The manufacturer shall also provide cost-sensitive, diameter-limited designs andpricing for each specified anchor bolt structure that will minimize visual impacts and alsopotentially lower overall installed cost, based on the design philosophy described below. Themanufacturer’s bid will be evaluated by the company based on these criteria, includingestimated foundation costs and not based on structure costs alone.

When designing cost-sensitive, diameter-limiting anchor bolt structure(s), the manufacturer shall also calculate and include the cost of the associated foundation(s) with the price of the cost-sensitive, diameter-limiting anchor bolt structure(s), using the foundation criteria described in Appendix A. The final design(s) provided for quotation by the manufacturer shall be those achieving the lowest overall installed cost, combining the anchor bolt structure costs and foundation costs.

Unless otherwise noted in Appendix A, all foundation diameters shall be calculated using aminimum of 18″ (457 mm) diameter larger than the outer ring anchor bolt circle, rounded up tothe nearest six-inch (6″ / 152 mm) increment, for foundation up to six feet (6' / 1.8 m) indiameter; and shall be calculated using a minimum of 18″ (457 mm) diameter larger than theouter ring anchor bolt circle, rounded up to the nearest one foot (1' / 0.3 m) increment, forfoundations above six feet (6' / 1.8 m) in diameter.

When so specified in Appendix A, the manufacturer shall provide diameter-limited design andpricing for each such specified, direct-embedded structure that will minimize visual impacts.

6. Materials

All materials shall comply with the applicable requirements of ASTM specifications. Poles, arms and conductor brackets shall conform with ASTM A36, ASTM A572, ASTM A581,

ASTM A588, ASTM A871, or ASTM A595. The base plate shall conform with ASTM A572, ASTM A588, ASTM A633, or ASTM A595. Anchor bolts shall conform to ASTM A615, Grade 75.

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EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

Other bolts and nuts shall conform, as applicable, to ASTM A307, ASTM A325, ASTM A354,or ASTM A394. Locknuts shall be provided for each structure bolt, or American Nut Com-pany (ANCO) type self-locking nuts may be used. Locknuts shall be the galvanized MF typeor ANCO type. For swing bracket or hardware connections with dynamic vibration, AltaLinkrequires bolts with cotter pin per CSA C83.

Anchor bolts, structural plates, and weld material, shall meet ASCE requirements for Charpytests. All steel materials and associated welds essential to the strength of structures or found-ations shall meet the following notch toughness criteria:15 foot-pounds absorbed energy at -20 °F (-29 °C) in the longitudinal direction as measured bythe Charpy “V” notch test in accordance with ASTM A370 and A673.

For galvanized structures, the steel used for the pole shaft and arms shall have a silicon con-tent less than 0.06%.

7. Fabrication

7.1. Welds

All welding shall be in accordance with the AWS D1.1 or CSA W59 latest editions. Weldersshall be qualified in accordance with AWS D1.1 or CSA W59 welding procedures.

100% penetration welds shall be required in, but not limited to, the following areas:

Circumferential welds (C-welds) joining structural members Longitudinal welds in the female portion of the joint within the slip joint area Welds at the butt joints of back-up strips Base plate to shaft weld Longitudinal welds for a minimum length of 12″ (305 mm) where there are adjacent C-

welds, flange welds, base welds, and ends of tubesFull penetration or an equivalent 90% partial penetration with fillet overlay shall be used for arm-to-arm base, vang-to-plate shaft, and arm box joints.

The quality and acceptability of every inch (100%) of the full penetration welds shall bedetermined by visual and ultrasonic inspection. Weld finishing shall be performed such that allundercut, weld spatter, and excessive crown height or width shall be removed or correctedprior to final inspection.

All other penetration welds shall have 80% minimum penetration. The quality and acceptabilityof all welds other than full penetration welds shall be determined by visual inspection,supplemented by magnetic particle, ultrasonic, or dye penetrant inspection.

All weld back-up strips shall be continuous for the full length of the welds. Care shall beexercised in the design of welded connections to avoid areas of high stress concentration thatcould be subject to fatigue or brittle fractures.

Field welding shall not be permitted except with the company’s approval and the manufacturer’sdirection in repairing a structure.

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EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

7.2. Cutting, Finishing, Shearing, and Straightening

All parts of the structure shall be neatly finished and free from kinks or twists. All holes, blocks,and clips shall be made with sharp tools and shall be clean-cut without torn or ragged edges.

Before being laid out or worked in any manner, structural material shall be straight and clean. Ifstraightening is necessary, it shall be done by methods that will not damage the metal.

Shearing and cutting shall be performed carefully and all portions of the work shall be finishedneatly. Copes and re-entrant cuts shall be filleted before cutting.

All forming or bending during fabrication shall be done by methods that will preventembrittlement or loss of strength in the material being worked.

7.3. Holes

Holes for connection bolts shall be ⅛″ (3.2 mm) larger than the nominal diameter of the bolts.Holes in the flange plates for bolted splices shall be ⅛″ (3.2 mm) larger than the bolt diameter.Holes in the base plates for anchor bolts shall be ⅜″ (9.5 mm) larger than the nominal diameterof the anchor bolts. The details of all connections and splices shall be subject to the approval ofthe company.

Holes in steel plates that are punched must be smooth and cylindrical without excessivetear out or depressions. Any burrs that remain after punching shall be removed by grinding,reaming, etc.

Holes of any diameter may be drilled in plate of any thickness. Care shall be taken to maintainaccuracy when drilling stacks of plates.

Holes may be made by use of a machine-guided oxygen torch. Flame cut edges shall bereasonably smooth and suitable for the stresses transmitted to them.

Field-drilled holes must be approved by the company. If the company specifies an intent to fielddrill holes, the manufacturer shall supply a galvanizing touch-up kit for galvanized structuresand/or a silicone sealant for weathering steel and painted structures.

8. Forged Ring Material Fabrication Requirements

The use of forged ring material is acceptable, subject to quality requirements contained within thisspecification. The use of forged ring material shall be documented within the manufacturer’sproposal. In addition to meeting the chemistry requirements established in ASTM A350, thefabrication and welding requirements of this section for forged ring material used for base plates orflange plates shall also be met.

Following post-fabrication heat treatment (i.e. tempering) all forged ring material shall undergo asurface grinding (approximately three [3] mils [.08 mm] minimum) to remove any hardened layers(including tightly adhered mill scale, “scabs”, etc.) that are not deemed weldable. If grinding is notperformed, additional material test reports may be required.

The manufacturer shall prepare and provide a qualified Weld Procedure Specification (WPS)and Procedure Qualification Record (PQR) in accordance with AWS D1.1 or CSA W59-18. The

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EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

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EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

WPS shall be clearly posted at the applicable shop weld stations where the forged material isbeing utilized.

The PQRs for these WPSs shall include testing for the appropriate Charpy toughnessrequirements per the requirements of AWS D1.1 or CSA W59-18.

All forged rings shall be sufficiently flat so that the anchor bolt nuts located directly above andbelow the base plate will seat flush against the base plate. Any forged ring material not meetingthis requirement will be rejected.

All forged rings shall be ultrasonically tested for laminar defects in accordance with therequirements of ASTM A388, Ultrasonic Examination of Steel Forgings. A permanent record ofsuch inspection shall be maintained for the component.

9. Tolerances

Manufacturing tolerances shall be limited to the following:Pole length One piece: ±1″ (± 25.4 mm)

Assembled pole with flange connections: ±2″ (± 50.8 mm)Assembled pole with slip-joint connection: Accumulation of theslip tolerances not to exceed -6″ (152 mm) , +12″ (305 mm) total

Pole diameter ±1/2% of the design valueSection length ±1″ (± 25.4 mm) of the design valuePole end squareness ±1/8″ (3.2 mm) per flangePole sweep 1/8″ (3.2 mm) per 10′ (3.05 m) of pole length

Pole twist Flange: Less than one (1) degree per 50′ (15.2 m) of assembledheight.Slip joint: Less than one (1) degree per 50′ (15.2 m) ofassembled height.

Slip joint tolerances Tolerances per the manufacturer’s recommendations and totalpole length requirements above.

Location of groups of bolt holes from top of pole ±1.0″ (± 25.4 mm)Location of centerline between groups of bolt holes ±1.0″ (± 25.4 mm)Location of holes within a group of bolt holes ±1/16″ (±1.6 mm)Bolt hole alignment Not to vary from the longitudinal pole centerline of that group of

holes by more than 1/16″ (1.6 mm)

10. Grounding

A grounding connection shall be welded to the pole shaft, 18″(457 mm) above the base plate foranchor bolt structures or six inches (6″ / 152 mm) above the top of the below-grade protectionsystem for direct embedded structures. The grounding connection will be either the two-holeNEMA pad, or a nut, as shown on the Appendix A.

Material Specification Page 12of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

The grounding pad face shall not be painted or covered with other coatings. The grounding nutthread and grounding pad threads shall be protected from coatings.

Threaded inserts installed for grounding shall be made of Type 316 or Type 322 stainless steeland provided with standard ½-inch (12.7 mm) 13 UNC threads. Threads shall be protected fromcoatings.

11. Climbing Devices

11.1. Design Loads

If climbing devices are noted on Appendix A, the removable ladder and each attachment tothe pole shall be designed to support a minimum of a 300-pound (136 kg) worker andequipment multiplied by a load factor of 2.0. The load shall be at the outer edge of the ladderstep.

11.2. Location

Climbing devices shall start eight feet (8' / 2.4 m) above groundline and extend to the poletop unless otherwise specified in Appendix A. The climbing device shall be spaced such thateach step is 18″(457 mm) apart and orientated to provide maximum ease of climbing.Theseshall be located to avoid interference with other attachments.

12. Finishes

The following finishes are acceptable and shall be noted, as applicable, on Appendix A:galvanizing, zinc primer and painting, metalizing, weathering steel, and below-grade coating.

Galvanizing: All structures and structural components that are hot-dip galvanized shall meet all the requirements of ASTM A123 or ASTM A153, except ASTM F3125 bolts shall not be gal-vanized. Measures shall be taken to prevent warping and distortion according to ASTM A384 and to prevent embrittlement according to ASTM A143. Structures made of ASTM A588 steel shall not be galvanized due to the high silicon content of the steel. Following galvanizing and inspection, and if so specified on Appendix A, structure(s) and components shall be given a dull surface by etching in a weak acid solution, coating with micaceous iron oxide (MIO), or other company pre-approved method. If galvanizing is performed outside the manufacturer’s plant, the manufacturer shall be entirely responsible for compliance with the requirements of this spe-cification. After galvanizing, base plate to tower plate welds shall be ultrasonically tested (UT) to ensure no toe-cracking has occurred. The manufacturer shall maintain these UT inspection records as described in " Testing" on page 15 If affected welds are discovered they shall be removed, repaired and UT tested again by the manufacturer to confirm complete weld pen-etration. Areas of weld repair or other areas damaged by this process shall be touched up by the manufacturer with an approved zinc rich coating or other approved spray-on zinc application.

Zinc Primer and Painting: After shot or sand blasting and cleaning in accordance with thesurface preparations specification, SSPC/NACE SP 6/NACE 3 coating, a zinc primer of three(3) mils (.08 mm) dry film thickness (DFT) and one coat three (3) mils (.08 mm) DFT of an

Material Specification Page 13of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

approved finish paint (see Appendix A), shall be applied to all exterior surfaces in accordancewith the paint manufacturer’s recommendations. Total dry film thickness (primer plus finishcoat) shall be between six (6) – 11 mils (1.5 mm – 2.8 mm). A guarantee against flaking or fad-ing of the paint for a minimum of five (5) years shall be provided.

Weathering Steel: Steel shall conform to ASTM A588 or A871. After fabrication, structuresmade of weathering steel shall be cleaned of oil, scale, etc., in accordance with the surface pre-paration specification SSPC/NACE SP 6/NACE 3, to ensure uniform and rapid formation ofthe protective oxide layer.

Metalizing: Structures that are to be metalized shall be sealed to prevent corrosion of interiorsurfaces. Poles and arms shall be prepared and coated per the standards and practices ref-erenced above.

Below-Grade Coating: When poles are to be directly embedded, after the applicable sectionis metalized per " Embedment" on page 6, a 20 mil (.5 mm) (minimum dry film thickness) exter-ior coating consisting of a duplex, 100% solids, aromatic polyurethane coating that is resistantto ultraviolet light, or a company-approved equivalent, shall be applied to the embedded polesection from seven feet (7' / 2.1 m) below the groundline to three feet (3' / 0.9 m) above thegroundline. The surface area to be coated shall be surface-treated per the coating man-ufacturer’s instructions. The coating shall be applied only by trained and qualified applicators.

The transition area for the end of the coating shall be a gradual, feathered transition from 20mils (.5 mm) to zero (0) mils over eight inches (8″ / 203 mm) min length (no taping).

Areas of air entrapment between steel and below-grade coating shall be repaired prior toshipment of affected pole section. Excessive areas of air entrapment shall be grounds for non-acceptance of structure by the company.

Sufficient touch-up kits shall be shipped with structures to treat areas damaged duringunloading and installation.

Bolts and Nuts: Yield strengths under 100,000 psi shall be hot-dip galvanized per ASTMA153 and ASTM A143, or mechanically-coated with zinc in accordance with ASTM B696,Class 50. Bolting materials with yield strengths in excess of 100,000 psi shall not be hot-dip gal-vanized. Instead, they shall be painted with zinc-enriched paint or mechanically coated withzinc per ASTM B696, Class 50.

Compliance Coating thickness requirements shall be checked with a magnetic thicknessgauge.

13. Inspection and Testing

13.1. Inspection

The company shall have free entry at all times while the company’s work is being carried on, toall parts of the manufacturer’s plant to inspect any part of the production of the structurescovered by this specification.

Steel members that are bent or warped or otherwise improperly fabricated shall be properlyrepaired or replaced.

Material Specification Page 14of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

The manufacturer may use any combination of appropriate inspection methods, inaccordance with AWS or CSA structural welding codes and ASTM A595, necessary toassure the weld quality requirements. Additionally, all welds shall be 100% visually inspectedfor surface flaws such as poor profile, undercut, spatter, arc strikes, cracking, blow holes, orother rejectable flaws. All questionable weld areas shall be inspected further usingultrasonic, magnetic particle, or dye penetration techniques. Visual inspection shall beconducted at appropriate times during the fabrication sequence to assure that no rejectableflaw can be covered or made inaccessible due to subsequent operations.

13.2. Testing

The cost of tests made by the manufacturer (except full-scale load tests on structures),including cost of the certified test reports, shall be considered included in the price.

The manufacturer shall test in accordance with ASTM A370 and ASTM A673 to verify that thematerial used in the structures meets the impact properties.

Mill test reports showing chemical and physical properties of all material furnished under thisspecification shall be maintained by the manufacturer for a period of 15 years and shall betraceable to the structure.

All plates over 1½″ (38 mm) thick shall be ultrasonically tested to assure against defects thatcould lead to lamellar tearing.

The manufacturer shall make certified welding reports for each structure. The welding reportsshall include all welds of each structure. Each weld shall be clearly identified. The report shallconsist of the method of testing, whether the weld is acceptable, the identification of thestructure, the date, and the name and signature of the inspector. The report shall bemaintained by the manufacturer for a period of 15 years and shall be traceable to thestructure.

14. Marking

14.1. Component Marking

Separate parts of the pole, including crossarms and anchor bolt cages, shall be distinctlymarked by the manufacturer to identify each piece. The manufacturer shall use companymarking methodology (see Appendix A), if so noted at time of award of the work.

14.2. Structure Marking

The manufacturer shall provide for the installation of aerial patrol signs as shown in Appendix A.

Each pole section’s center of gravity (lifting point) shall be marked with a weld bead at leasttwo inches (2″ / 51 mm) in length.

Each pole shall be identified with a manufacturer’s identification plate located five feet (5' / 1.5m) above the groundline or base plate. The information on the identification plate, as providedin Appendix A, shall have lettering not less than ¼″ (6 mm) in height.

Material Specification Page 15of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

15. Shipping

Each shipment shall be accompanied by a list of all parts, identifiable by structure type andnumber. Arms, bolts and miscellaneous hardware will be identified by the list for match upwith the respective pole shaft. All parts required for any one structure shall be in one shipment,if possible

The company shall be notified prior to shipment that such shipment is to take place, and reservesthe right to inspect the components prior to shipment. The notification shall give quantities,weight, name of common carrier used, and expected time of arrival. A minimum of 48 hours ofnotice shall be provided to the company.

The anchor bolts, if specified, shall be welded to the holding plate in the bottom of the cage. Aremovable template shall be used at the top of the cage and shall be marked to show thecenterline for tangent structures and the angle bisector for angle structures. Matching marks areto be on the base plate so proper alignment can be made. Bolt clusters shall be rigid enough towithstand the normal jolts of shipping and handling with no displacement of anchor bolts from theproper positions within the cluster.

Salt-treated wood blocking and urethane foam shall not be used when shipping or storing steelstructures.

16. Technical Documentation

All documents shall be in English. All drawings shall be provided in an AutoCAD and AdobeAcrobat compatible format, and in Microstation format for AltaLink. Electronic copies, as notedin the following subsections, shall be transmitted via email or ftp. Removable media, such asflash drives or CD’s, are not allowed. All values on drawings and other materials shall be shownin U.S. customary units only, or in both U.S. customary and SI units.

Technical documentation shall be furnished to the company at the addresses below. Electronicsubmittals are preferred.

Project specific submittals shall also be electronically sent to the company lead project engineer.

Electronic submittals:AltaLink email: DocControl@AltaLink.caNV Energy email: Mfgrecord@NVEnergy.com (Email to include lead project engineer.)PacifiCorp email: TDManufacturerSubmittal@pacificorp.com

Physical submittals:AltaLink, Attn: Prisca Madzvamuse2611, 3 Avenue SECalgary, AB, T2A 7W7, Canada

Or:

MidAmerican Energy, Attn: Electric Standards106 East Second StreetDavenport, IA 52801, USA

Material Specification Page 16of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

Or:

NV Energy, Attn: Manager, T&D Standards7155 Lindell Rd. M/S B19AMLas Vegas, NV 89118, USA

Or:

PacifiCorp, Attn: T&D Standards EngineeringLloyd Center Tower825 NE Multnomah St., Suite 1600Portland, OR 97232, USA

16.1. Information to be Supplied with the Proposal

a. Calculated shipping weight of each structure.b. Calculated shipping weight of each structure’s assembled anchor bolt system, if specified.c. Ultimate groundline reactions (including load factors) in poles and guy wires, if applicable in

table format, including all load case calculations.d. Anchor bolt size, length, and bolt pattern.e. Type and grade of material of major components by ASTM number.f. Description of pole shaft, including thickness, length, diameter, cross-sectional geometry,

cambering details/raking details and method of fastening each shaft component.g. Data showing the design of the arm, arm connections, arm attachment plates and brackets.h. PLS-CADD data pertaining to each structure, including the PLS-POLE.bak file.i. Cost-sensitive, diameter-limited structure pricing and associated foundation cost for each

specified anchor bolt structure shall be provided separately. For each specified anchor boltstructure, the standard design and the standard design anchor bolt circle dimension andassociated structure pricing shall also be included if the cost-sensitive, diameter-limitingdesign is not used.

j. If so specified in Appendix A, provide cost-sensitive, diameter-limited structure pricing foreach such specified direct-embedded structure.

k. Separate lead times for delivery of anchor bolts, if specified, and the complete steel struc-ture(s) after receipt of order. The anchor bolts, if specified, and complete structure(s) shallbe delivered in accordance with these lead times for delivery.

16.2. Documentation to be Supplied for Company Approval Prior to Fabrication

Documentation to be provided for the company’s approval prior to fabrication includes finaldesign calculations for pole shaft, base plate, anchor bolts, arms, and other appurtenances,including their connections for all structures. The following information shall be supplied insuch a timeframe to allow the company at least 10 business days to review, while stillmaintaining noted applicable lead times for material delivery:

a. For the loading cases with load factors, the total shear, axial forces, moments, stresses orstress ratios, section moduli, cross-sectional areas, deflections, W/T’s for polygonal and

Material Specification Page 17of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

D/T’s for round cross sections at all splices, at arm attachment points (top and bottom), andat least every 10' (3.05 m) along the structure.

b. For the critical loading case, shear and axial forces, moments, stresses, section moduli,cross-sectional areas at the arm connections, bolt stresses in the arm connection, anddeflection at the end of each arm.

c. Anticipated deflections at the top of the structure and at the ends of the arms shall be indic-ated for each structure for the normal, everyday loading condition as specified in" Deflection Criteria" on page 7

d. Reactions and groundline moments for all specified loading cases.e. Detail drawings for each structure type giving weights of structure components, dimen-

sions, and bill of materials.f. Assembly instructions and erection drawings, slip joint lengths and allowable tolerances,

and any special handling instructions.g. Anchor bolt drawings, if anchor bolts are specified, with sufficient detail to show compliance

with this specification and all applicable structure loading requirements.h. Final PLS-POLE.bak files for each structure.

16.3. Final Documents

Final documents shall be supplied to the company for the items in " Documentation to beSupplied for Company Approval Prior to Fabrication" on the previous page item e., after finaldesign and before delivery of all structures.

16.4. Test Reports (If Requested by the Company)

a. Certified mill test reports for all structural material.b. Certified welding reports for each structure.c. Impact property test reports showing that the material used in the structures meets the

impact properties.d. Test reports on coating thickness.e. Report of structure testing, when required, including photographs, diagrams,

load trees, etc.

17. Approval, Acceptance, and Ownership

Final designs must be approved by the company before material ordering and fabrication.Material ordering and fabrication prior to approval will be at the manufacturer’s risk. The award ofthis contract does not constitute acceptance of design calculations submitted with the bid. Ifcorrections are required in the final structure designs due to the manufacturer’s errors,omissions, or misinterpretations of this specification, the quoted price shall not change. Approvalof the drawings by the company does not relieve the manufacturer of responsibility for theadequacy of the design, correctness of dimensions, details on the drawings, and the proper fit ofparts.

Material Specification Page 18of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

After delivery, the structures will be inspected by the company and shall be free of dirt, oil blisters,flux, black spots, dross, tear-drop edges, flaking paint or zinc; and in general, shall be smooth,attractive, and unscarred. Structures not meeting this requirement shall be repaired or replacedby the fabricator at no additional cost to the company and shall be performed so as to notadversely impact the company’s structure installation schedule.

18. Material Specification Issuing Department

The Berkshire Hathaway Energy transmission engineering departments of AltaLink,MidAmerican Energy, NV Energy and PacifCorp authored this material specification, which waspublished by the engineering publications department of PacifiCorp. Questions regardingediting, revision history and document output may be directed to the lead editor ateampub@pacificorp.com. Technical questions and comments may be submitted by email to:TDManufacturerSubmittal@pacificorp.com.

This material specification shall be used and duplicated only in support of company projects.

Material Specification Page 19of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

EBU-PL-S01 Steel Poles and H-Frame Structures—Transmission Class—Design, Manufacture, and Treatment

Appendix A— Attachments

All drawings and other attachments to this specification shall be considered to be a part of thisspecification.

Material Specification Page 20of 20

EBU-PL-S01 Steel Poles andH-Frame Structures—TransmissionClass—Design,Manufacture, andTreatmentPublishedDate: 4Oct 19Last Reviewed: 4Oct 19Printed versions of this specification may be out of date. Please consult the online specifications for the most recent version. This document shall be used andduplicated only in support of Berkshire Hathaway Energy projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (ForPCRCMS Only)E n g in e e r :E h s a n Ma le k iTD0 4 1Ma n a g e r :B e n F o wle r7 F e b 1 9

Scope

Standard References

Transmission Construction StandardPage 1 of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

Information

Pole Finish

Transmission Construction StandardPage 2 of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Shaft Connection

Figure 1—Slip Joint Connection and Jacking Nut Detail

Transmission Construction StandardPage 3 of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Figure 2—Flange Joint Connection

Climbing

Transmission Construction StandardPage 4 of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Figure 3—Ladder Installation, Ladder Clips and Ladders

Transmission Construction StandardPage 5 of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Figure 4—Step Bolts and Nuts

Transmission Construction StandardPage 6 of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Figure 5—Crossarm Climbing Rungs

Transmission Construction StandardPage 7 of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Embedment Type

Transmission Construction StandardPage 8 of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Figure 6—Direct Burial Pole Embedment

Transmission Construction StandardPage 9 of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Figure 7—Flanged/Anchor Bolt Foundation

Transmission Construction StandardPage 10of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

OPGW Down Lead Installation

Transmission Construction StandardPage 11of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Figure 8—Down Lead Clamp Attachment Clip

Transmission Construction StandardPage 12of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Figure 9—Down Lead Attachment Bracket Installation on Pole

Transmission Construction StandardPage 13of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Figure 10—Transmission Line Distribution Underbuild

Transmission Construction StandardPage 14of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Figure 11—Positions for Personal Grounding Nuts

Transmission Construction StandardPage 15of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

Items on all Steel Poles

Transmission Construction StandardPage 16of 16PublishedDate: 7 Feb 19Last Reviewed: 7 Feb 19

Deviation from this standard requires prior approval. Contact the standards engineering manager for approval processes and forms.Printed versions of this standard may be out of date. Please consult the online standards for the most recent version. This standard shall be used and duplicated only in support ofPacifiCorp projects. ©2019 by PacifiCorp.

TD 041 Pole, Steel, Options (For PCRCMS Only)

WBSORDER#

Project Title:Date:

Prepared by:Project Manager:

Description:

Load and Design Drawing Length Qty Reqd Unit of Measure

Date Req'd Unit Price Extended Line

Item Cost Planning Plant/Store Location Comments Requisition #

10066786.620.01-01TH231 - Directembed 10066786.620.01-01_TH231-130 39 EA 04/30/21 $29,845 $1,163,955

10066786.620.01-02TH231 with A.B. Cage 10066786.620.01-02_TH231-105 1 EA 04/30/21 $24,794 $24,794

10066786.620.01-03TH231 with A.B. Cage 10066786.620.01-03_TH231-100 1 EA 04/30/21 $24,794 $24,794

10066786.620.02-01_TH231-095 1 EA 04/30/21 $51,023 $51,023

10066786.620.02-01_TH231-110 2 EA 04/30/21 $58,290 $116,579

10066786.620.02-02_TH231-110 3 EA 04/30/21 $40,224 $120,672

10066786.620.02-02_TH231-115 1 EA 04/30/21 $41,681 $41,681

10066786.620.02-02_TH231-120 1 EA 04/30/21 $43,235 $43,235

10066786.620.02-02_TH231-130 3 EA 04/30/21 $81,466 $244,397

10066786.620.03-01TH235 with A.B. Cage 10066786.620.03-01_TH235-095 1 EA 04/30/21 $28,692 $28,692

10066786.620.03-02TH235 with A.B. Cage 10066786.620.03-02_TH235-110 1 EA 04/30/21 $37,213 $37,213

10066786.620.04-01TH240 with A.B. Cage 10066786.620.04-01_TH240-115 2 EA 04/30/21 $59,910 $119,820

10066786.620.05-01_TH251-085 1 EA 04/30/21 $42,889 $42,889

10066786.620.05-01_TH251-100 1 EA 04/30/21 $49,516 $49,516

10066786.620.05-02_TH251-115 2 EA 04/30/21 $74,890 $149,781

10066786.620.05-02_TH251-120 1 EA 04/30/21 $76,758 $76,758

10066786.620.06-01_TH252-090 1 EA 04/30/21 $46,224 $46,224

10066786.620.06-01_TH252-105 3 EA 04/30/21 $65,853 $197,558

10066786.620.06-02TH252 with A.B. Cage 10066786.620.06-02_TH252-110 2 EA 04/30/21 $74,606 $149,213

10066786.620.07-01TH255 with A.B. Cage 10066786.620.07-01_TH255-115 1 EA 04/30/21 $68,184 $68,184

10066786.620.08-01TH285 with A.B. Cage 10066786.620.08-01_TH285-100 1 EA 04/30/21 $61,849 $61,849

10066786.620.08-02TH285 with A.B. Cage 10066786.620.08-02_TH285-110 1 EA 04/30/21 $86,008 $86,008

10066786.620.09-01_TH400_110 2 EA 04/30/21 $96,379 $192,759

10066786.620.09-01_TH400_120 1 EA 04/30/21 $103,873 $103,873

10066786.620.10-01_TH440_115 1 EA 04/30/21 $163,227 $163,227

10066786.620.10-01_TH440_125 1 EA 04/30/21 $176,205 $176,205

10066786.620.10-01_TH440_150 1 EA 04/30/21 $208,241 $208,241

10066786.620.10-01_TH440_155 1 EA 04/30/21 $215,448 $215,448

LDSP-100-H5 4 EA 04/30/21 $8,918 $35,674

LDSP-105-H4 2 EA 04/30/21 $8,129 $16,258

LDSP-105-H5 1 EA 04/30/21 $9,815 $9,815

LDSP-110-H6 1 EA 04/30/21 $11,163 $11,163

LDSP-115-H5 1 EA 04/30/21 $11,121 $11,121

LDSP-100-H4 1 EA 04/30/21 $7,314 $7,314

LDSP-105-H3 1 EA 04/30/21 $7,404 $7,404

LDSP-105-H4 1 EA 04/30/21 $8,129 $8,129

LDSP-105-H6 14 EA 04/30/21 $10,477 $146,677

PLEASE REFER TO ATTACHED SPECIFICATIONS EBU-PL-S01, TD041, AND ITS APPENDIX FOR APPLICABLE SPECIFICATIONS AND

DRAWINGS>Indicative bids Provided by Pac 08/14/20

>Indicative Vendor Bids Due 09/18/20>Vendor Awarded 10/2/10

>Final Structure Quantities Provided 10/17/20>Final Design Provided 10/30/20>Anchor Bolts to Site 03/19/21>Steel Poles to Site 04/30/21

STEEL POLE REQUISITIONS Rev-0A

TZPR/2017/C/010/IFPSMPT10066786Rigby to Sugarmill 161kV Transmission LineSugarmill to Paine Sub Steel Poles7/31/2020Jake Thomas -POWER Jeff Howcroft -PacifiCorp

Sugarmill Substation - Idaho

10066786.620.06-01TH252 with A.B. Cage

10066786.620.09-01TH400 with A.B. Cage

10066786.620.10-01TH440 with A.B. Cage

10066786.630.01-01TH201 - LDSP Directembed

10066786.620.02-01TH231 with A.B. Cage

10066786.620.02-02TH231 with A.B. Cage

10066786.620.05-01TH251 with A.B. Cage

10066786.620.05-02TH251 with A.B. Cage

Page 1 of 2

WBSORDER#

Project Title:Date:

Prepared by:Project Manager:

Description:

Load and Design Drawing Length Qty Reqd Unit of Measure

Date Req'd Unit Price Extended Line

Item Cost Planning Plant/Store Location Comments Requisition #

STEEL POLE REQUISITIONS Rev-0A

TZPR/2017/C/010/IFPSMPT10066786Rigby to Sugarmill 161kV Transmission LineSugarmill to Paine Sub Steel Poles7/31/2020Jake Thomas -POWER Jeff Howcroft -PacifiCorp

LDSP-110-H5 1 EA 04/30/21 $10,457 $10,457

LDSP-110-H6 3 EA 04/30/21 $11,163 $33,490

LDSP-110-H7 1 EA 04/30/21 $11,599 $11,599

LDSP-115-H5 2 EA 04/30/21 $11,121 $22,242

LDSP-120-H3 1 EA 04/30/21 $8,917 $8,917

LDSP-120-H7 3 EA 04/30/21 $13,342 $40,026

LDSP-115-H2 4 EA 04/30/21 $7,700 $30,802

LDSP-115-H3 2 EA 04/30/21 $8,398 $16,796

LDSP-120-H3 1 EA 04/30/21 $8,917 $8,917

LDSP-110-H6 4 EA 04/30/21 $11,163 $44,653

LDSP-110-H7 1 EA 04/30/21 $11,599 $11,599

Prior to delivery:Please contact PM Jeff Howcroft 48 hours prior to deliver at 801-220-2635. Deliver shipment to Sugarmill Substation, located at the intersection of Mesa Street and N 25th E, Idaho Falls, Idaho. Shipments shall be delivered on working days, Mon-Fri, except for Holidays, during Regular work hours, 7AM-3:30PM. Delivery truck driver is required to have hard hat, safety glasses, steel toe shoes, fire retardant shirt and denim pants.

$4,497,638.22

DO NOT ENTER INFORMATION BELOW THIS LINE (IT WILL NOT PRINT OUT).PLEASE INSERT ADDITIONAL LINES ABOVE SUMMATION IF YOU NEED ROOM TO ORDER ADDITIONAL ITMES.

10066786.630.02-01TH231 - LDSP Directembed

10066786.630.04-01TH271 - LDSP Directembed

10066786.630.01-02TH201 - LDSP Directembed

Page 2 of 2

OPEN