1 ©2018 UtilityLDPros...PLS-CADD, O-CALC, Utility Line Design Software, PLS POLE We use Pole...

R. John MinerTed Dimberio

R. John Miner is an accomplished executive manager and educator with over forty-five years of experience in the electric utility industry. He is president of Collaborative Learning, Inc. of Austin and San Antonio, Texas, a firm that presents management and technical education programs and, through Collaboration Unlimited, provides management consulting services to the electric utility industry. John has been an adult educator for most of his career and has conducted hundreds of educational programs for various audiences in forty states, Canada, and five overseas locations. His technical seminars and workshops for utilities have covered such topics as application of the National Electrical Safety Code (NESC), overhead and underground distribution systems, electric system planning, construction, operations, and maintenance. He has also served as an expert witness on litigation involving electrical accidents and compliance with the NESC.

John earned a Bachelor of Science degree in electrical engineering (with honors), and a Master of Science degree in engineering science, both from the University of Toledo. John is a Senior Life Member of the IEEE and is a registered Professional Engineer in the states of Texas and Minnesota.

Ted Dimberio, P.E. has 42-years’ experience in distribution line design and has worked for rural electric cooperatives and consulting firms, and most recently, is a private business owner. Ted has worked in all capacities of distribution line design that includes field staking, supervision, management, and consulting. Ted has a vision to enhance distribution line design by incorporating engineering software, best practice and engineering ethics.

Ted is currently President and CFO of Utility Line Design and President of Line Design University. Ted has been an industry leader in developing engineering software for electric distribution utilities that auto-generates profile drawings and required line design calculations to verify and document engineering decisions, and provide long-term engineering documentation. Ted keeps abreast with the engineering trends by maintaining close contact with numerous state engineering boards, the National Council of Examiners for Engineers and Surveyors and the National Society of Professional Engineers.

Ted received his civil and structural engineering education from Mesabi State Junior College and the University of Minnesota, and is a licensed professional engineer in the states of Minnesota and Wisconsin.

Help utility line design professionals:

Recognize the need for improvement in the processes and practices usedfor overhead electric and communication line design.

Identify and explore the “Professional Practice” of overhead distributionlines which can result in designs that are safer, more reliable, and incompliance with the requirements of the National Electrical Safety Code(NESC) and Professional Engineering practice laws and regulations.

Know the Line Design Environment Understand and Use Professional Engineering practices Understand and use Line Design Best Practices Applicable Technologies Documented Line Design Criteria A Documented Line Design Process

Continuously Improve

RMEL Member Survey results; Best Practices in Utility Overhead Distribution Line Design (March 2018)

Prevailing distribution line design practices

Legal, regulatory and business environment for overhead line design

Typical state engineering practice laws and regulations

Overview of the line design process

Protocols for line design documentation and records management

Line designer training and continuing education

Trending best practices in overhead line design

RMEL and the Association for Utility Line Design Professionals (UtilityLDPros) undertook a survey to identify, share, and promote best practices in utility overhead distribution line design.

RMEL Member organizations responsible for the design of overhead electric and telecommunication lines were asked to respond to the survey questions to the best of their ability.

City of Aztec Lincoln Electric System Yampa Valley Electric Loup River PPD Wheatland REA Lamar Utilities Board KCP&L CPS Energy City of Garden City, KS Tucson Electric Power San Isabel Electric Power

City of Cody, Wyoming LPEA Sangre de Cristo Electric CSU Kansas City Board of Public Utilities Western Area Power Administrators OPPD Pedernales Electric Cooperative Austin Energy Navopache Electric Cooperative

Considering all aspects of the overhead distribution line design function at your utility, what do you believe are the “Best Practices” that you presently employ? (These are specific responses) Construction specifications with associated compatible units providing

material list, estimated labor and material cost. Use of standards - Review process of engineers and operational personnel

- Meeting NESC requirements. Development of design standards to meet or exceed applicable codes. Material and construction standards - Trained and qualified Designers

apply those standards - Engineering and Standards Committee review and approval - Both Design and Construction quality review programs - 4 year Journeyman program for electric designer position

Considering all aspects of the overhead distribution line design function at your utility, what do you believe are the “Best Practices” that you presently employ? (These are specific responses) Adherence to NESC requirements - Adherence to structure and line

specifications Raptor protection - Lightning protection - Looped system Use of an approved set of design standards based on the RUS standards. In the process of implementing design using Autodesk AUD. Standardized designs Continuous improvement practices and LEAN initiatives. Best Practices – Our design and construction practices have made a

“Cadillac” system.

Considering all aspects of the overhead distribution line design function at your utility, which of your present practices are most in need of improvement? Automation and greater use of design programs. Mapping System Internal training Reduce internal and external hand-offs for some of our design processes Improve our current design tools to help make our Designers and Field

Techs more efficient (Smallworld/BOUD current tools) Line inspections

Considering all aspects of the overhead distribution line design function at your utility, which of your present practices are most in need of improvement? The overall work flow process needs to be modernized to leverage

electronic work orders, documentation, communication, field checks, as-builts, etc.. Formal inspections Internal inspector for construction. Removing open wire secondary from the

entire system Need to get up to date on field equipment like survey grade GPS units

The industry is severely lacking in qualified personnel such as distribution designers, engineers, lineman, etc. with no relief in sight at least in the short term.

How are most of your staff overhead distribution line design engineers and designers now being trained to perform their work? There is no written policy on training requirements, but all work is checked by

a senior level engineer They are trained on the job in addition to some formal internal training We have a state approved apprenticeship.

To what extent does your company now support its overhead distribution line engineers and designers to obtain ongoing professional development for continuing improvement of their line design knowledge and skills? (Scale is 1 to 5, Low to High)

To what extent does your company now support its overhead distribution line engineers and designers to keep abreast of the best practice design methods in each specialization of line design? (Scale is 1 to 5, Low to High)

Does your utility have and use a set of overhead distribution line construction standards?

100% Yes (All respondents)

If yes, are these standards accessible using CAD software and database?

80% Yes 20% No

What subject areas of these standards, if any, are most in need of revision or development? Construction drawings and material specifications/picklists One of the most recent areas to be updated was our clearance section due

to the recent adoption of the 2017 NESC by the state commission. We make changes monthly. No critical need currently. We are working on

font and drawing consistency. Interconnection standards Installation photos. Pad-mount security requirements - 3rd party attachments - Indoor

transformers - New types of switchgear/interrupters - LED streetlights

What subject areas of these standards, if any, are most in need of revision or development?

Need to add new spacer cable design standards using pre-stressed concrete poles. We review our standards every year and with our standards committee, we

are constantly revising and adding. We review all sections each year. Yes we have standards, but the CAD files are not accessible to everyone.

Most folks get the PDF versions. The biggest need is in Underground. The last time that all the specs were thoroughly updated was probably around 2011-2012. Individual specs are added as needed.

Do you use structural design software for overhead distribution? 53% YES 43% No

Which applications do you use? PLS-CADD, O-CALC, Utility Line Design Software, PLS POLE We use Pole Foreman. Our consultants use PLS-CADD.

If yes, what approximate % of your internal distribution design workforce uses structural design software? Responses included: Only about 5%, 10%, 15-20% of our workforce

To what extent do you have telecommunication line sag and tension charts for each telecommunications line section installed on your system? 7% All Line Sections,

13% Most Line Sections,

27% Some Line Sections,

53% No Line Sections

Comments:

Leave 20% of pole loading for telecommunications We use the sag/tension characteristics of 3/8" steel to approximate those

for telecommunications line when performing line design for new construction. If ever a specific existing line section is called into question, we would have to contact the telecommunications provider involved in order to get specific data for their conductors.

Which of the RMEL Member best practices described in the preceding slides would you like to know more about?

Engineering decisions are based on “rules of thumb” and experience The majority of distribution utilities use staking sheets as their design

document◦ Staking sheets contain limited engineering design documentation

Engineering line design criteria are not documented Joint-use continues to be a design and NESC compliance issue

Overhead conductors and cables are often installed using the “eyeball” method

The majority of overhead line litigation cases are associated with clearances

Almost no distribution conductor spans are supported with profile drawings◦ Note: Transmission spans almost always have profile drawings

Distribution line plant records are maintained but engineering records typically are not

Line designers have limited understanding of line design engineering principles

Line designers have limited knowledge of state engineering statutes and engineering practice acts

Some line design engineers do not have critical line design expertise

Utilities often have an unknown number of distribution line NESC violations

Work order inspection practices are not adequate from an engineering perspective◦ Many or most projects are not reviewed by a registered Professional Engineer

(P.E.)

◦ Utilities may use non-licensed subordinate employees or consultants to review projects

Failures of overhead line components:◦ Energized conductors and equipment on the ground

◦ Energized conductors and equipment with inadequate clearances

◦ Electrical faults that are not cleared before line components and equipment are damaged

◦ Grounding systems that do not protect workers and the public from harmful touch and step potentials

And these outcomes:◦ Death or personal injury from direct contact

◦ Property damage from direct contact

◦ Death, personal injury, or property damage from fire

◦ Death, personal injury, property damage, and financial losses from customer service interruptions

◦ Hazardous conditions in public places with indirect human and property consequences

Insurance (purchased or self-funded)

Use of documented design criteria

Use of documented construction standards

Design process documentation including formal design review

Construction process documentation including construction inspection

Design documentation & records management

Process monitoring and continuous improvement

Use your safety program as a model for overhead line design and construction◦ Safety (design) policies, program documentation, and employee safety

(design) manual for utility AND contractors◦ Routine safety (design) education and training◦ Routine safety (design) compliance monitoring◦ Safety (design) incentives for compliance and negative consequences for non-

compliance◦ Development of a sustainable “safety (quality design) culture”

Utilities must exercise a high degree of care commensurate with the potential risk of their products, services, and operations.

Electric utilities are expected to exercise the highest degree of care A utility breaches its duty to the public and its customers when:

◦ It does not exercise the degree of care required by the court

◦ It violates any statute or code

This duty is established by law and by legal precedent

Reliable

In compliance with the National Electrical Safety Code (NESC) and related industry standards

In compliance with other federal, state, and local laws and regulations (GO-95 in California)

In compliance with occupancy permits for public rights-of-way, railroad crossings, and waterway crossings

In compliance with easements on private property

Engineersd and designers have a duty to ensure that designs are prepared in compliance with applicable professional engineering practice laws and regulations.

2017 Minnesota StatutesResourcesCHAPTER 216B PUBLIC UTILITIES216B.029 STANDARDS FOR DISTRIBUTION UTILITIES.Subdivision 1.Standards.(a) The commission and each cooperative electric association and municipal utility shall adopt standards for safety, reliability, and service quality for distribution utilities. Standards for cooperative electric associations and municipal utilities should be as consistent as possible with the commission standards.

2017 Minnesota Statutes326B.35 SAFETY STANDARDS.All electrical wiring, apparatus and equipment for electrical light, heat and power, technology circuits or systems shall comply with the rules of the department and the board and be installed in conformity with accepted standards of construction for safety to life and property. For the purposes of this chapter, the rules and safety standards stated at the time the work is done in the then most current edition of the National Electrical Code as adopted by the National Fire Protection Association, Inc. and approved by the American National Standards Institute, and the National Electrical Safety Code as published by the Institute of Electrical and Electronics Engineers, Inc. and approved by the American National Standards Institute, shall be prima facie evidence of accepted standards of construction for safety to life and property;…

The NESC is recognized as an American National Standard by the American National Standards Institute (ANSI C2-2017)

NESC rules specify: Physical loading & safety factors related to the strength of utility structures &

supported facilities Conductor, cable, equipment and structure clearances and spacings Inspection and maintenance Grounding Numerous other requirements related to the safeguarding of persons &

facilities including utility work practices

Investor-owned, cooperative and municipal utilities may be treated the same or differently under state law with respect to NESC compliance.

Investor-owned, cooperative and municipal utilities use different methods of financing for capital improvements, each of which has its own requirements for facilities design and inspection.

Board members, officers, and professional engineers may be personally exposed to litigation concerning their role in the design/inspections process and activities.

Legal precedent (i.e. decisions in previous legal cases) has established that electric and communications utilities have a duty to exercise the highest degree of care when it comes to protecting the public from the hazards of electricity, electrical signals, and physical injury (product, service, facilities, operations).

Does your utility/firm document its legal/regulatory obligations with respect to overhead line design?

Do your employees understand and comply with state laws and regulations governing the practice of engineering?

Distribution line design is an engineering discipline as defined by the “Practice of Engineering” in most/all jurisdictions.

Distribution line design is closely related to:◦ Substation design

◦ Transmission design

Licensure in engineering encourages public welfare, safety, well-being and other interests of the general public

The practice of professional engineering is legally defined and, like most professions, is governed by individual states under state statute◦ If you are a registered P.E. you are expected to read, understand the

requirements, and practice engineering in compliance with the applicable statute(s)

Engineers employed by investor-owned, cooperative and municipal utilities will typically fall under the same state laws and regulations with respect to engineering practice.

Only a licensed professional engineer has the authority to take legal responsibility for engineering work or projects◦ Verified by a seal or stamp on the design documentation

Only a licensed professional engineer can sign, seal, or stamp technical documentation such as reports, plans, engineering drawings, and calculations

Utilities are required to obtain a Certificate of Authorization◦ Required in 34 states

◦ Completed by officers and engineer

Responsible Charge Engineer◦ Review all designs exposed to the general public

Design Technicians◦ Develop profile drawings and engineering reports

◦ Verify and document all engineering decisions

Engineers shall conform with state registration laws in the practice of engineering.

Strength of line (applicable to all components that make up the “supporting structure” as defined by the NESC)◦ NESC grade(s) of construction ◦ Strengths in excess of NESC grades (e.g. coastal areas subject to tropical

storms) Conductor Loading Zone/Loading District

(applicable to NESC conductor loading zones for sag & tension calculations)◦ Ice loading◦ Wind loading◦ Ambient temperature

Conductor vibration parametersVibration controlled by tension limits, conductor type, vibration dampers, spacers◦ Aeolian vibration (long-term damage)◦ Conductor galloping (conductor-to-conductor contacts)

Design tolerance(s)What margins do you incorporate into your deigns to account for calculation accuracies and field/construction variations? ◦ Clearances◦ Pole and component strengths

Maximum conductor operating temperatureDetermines maximum design sag for most lines

System operating voltageDetermines design insulation levels for insulated components and entire pole-top assembly◦ Nominal voltage insulation ratings◦ Impulse voltage insulation ratings (BIL)

NESC Extreme Wind loading Applicable in what circumstances?

NESC Extreme Ice with Concurrent Wind loadingApplicable in what circumstances?

NESC load factorsWhich are used based on grades of construction?

NESC strength factorsWhich are used based on grades of construction and materials?

Pole and cross-arm or support type(s)Which are used and under what circumstances?◦ Natural wood species ◦ Laminated wood◦ Manufactured (steel, concrete, ductile iron, FRP)

NESC clearances and spacingsIdentify those clearances and spacings that are relevant to your company’s design criteria and construction standards

Insulator mechanical strength◦ By type of insulator◦ By type of load (tension, compression, cantilever)

Pole top assembly insulator/conductor attachment locations◦ Must comply with NESC spacings ◦ Should consider BIL contribution of insulating structural components

Cross-arm type(s)◦ Wood or fiberglass◦ Longitudinal and vertical strength

Guy assembly rated strengths◦ Guy wire sizes and types◦ Guy hardware◦ Guy anchor (based on type and soil classification)

Grounding methods◦ Equipment grounding ◦ Neutral grounding◦ Grounding conductor type and size◦ Grounding electrode type, size, installation location, and where required or

acceptable (ground rod, pole butt plate/wrap)

Does your utility/firm have comprehensive and up-to-date documented overhead distribution design criteria?

Goals of standards◦ Designs that incorporate legally mandated standards

◦ Designs that incorporate prudent utility practice

◦ Designs that consider operating & maintenance requirements

◦ Economy in the purchase, stocking, and application of equipment and construction assembly parts

◦ Planning for adequate service and future growth

◦ Consistency (crew safety practices and work efficiency)

◦ What else?

Best Practices Use of a standards committee◦ Active participation by engineering/design, construction, maintenance,

purchasing/stores employees Rigorous attention to detail◦ Assembly units with component detail◦ Critical dimensions◦ Overall picture of completed structure

Feedback from engineering/design◦ Consistency with design criteria◦ Consistency with available design tools

Best Practices Feedback from the field ◦ Line performance (reliability indices)◦ Reported component malfunctions and failures◦ NESC required inspections◦ Maintenance requirements◦ Crew experience (construction, operation, maintenance)

Input from industry sources◦ Other utilities◦ Standards organizations◦ Industry publications

Best Practices Routine periodic review, update, and distribution◦ On a specific schedule (e.g. new NESC edition)◦ Documented review date(s) and notation of revisions◦ Review and sign-off by standards committee◦ Review by third party peers and/or experts◦ Distribution in forms that are useable◦ Use of bulletins to flag revisions or issues as they occur and are handled

Has your utility/firm adopted these best practices when it comes to construction standards?

The process by which an overhead line should be designed is complex in terms of detail and the relationships between those who have a direct role and/or interest in the process and its outcomes.Responsibility: Engineering/design (utility or consultant) Field forces (utility or contractor)Outcomes: Safety compliance Customer/customer service

Purchasing and stores Vendors Accounting Legal Management Board of Directors

Pole ground elevations Line angles Vertical ground clearances◦ Along span ground elevation

◦ Ground type

Guy leads

Conductors and cables (types and sizes) Back spans Pole heights and class Pole top assemblies Equipment types and ratings Grounding assemblies Guy assemblies Anchor assemblies

Why perform calculations?◦ The NESC and the professional practice of engineering design calls for

calculations

◦ Designs and installations that are not verified, documented and approved by a professional engineer are likely to have NESC violations

◦ Visual observations and reliance on past practice decision-making is a poor engineering procedure

Ruling span Conductor sag and tension Clearance between conductors Insulator strength Pole length◦ Vertical ground clearance requirements◦ Prevent conductor uplift

Pole class Guy scheme strength

Projects should be associated with ◦ Applicable edition of the NESC◦ Applicable design criteria ◦ Applicable construction standards

Documentation on design submittal (other than typical staking sheet information)◦ Name of responsible charge engineer◦ Ruling span for each line section◦ Loaded design tension for each line section◦ Grade of construction for each structure◦ Guy leads

Line Profile Drawings◦ Commonly used in transmission designs

◦ Seldom used in electric utility distribution designs

◦ Seldom used in telecom utility distribution designs

Line Profile Drawings◦ Ground elevations at pole locations◦ Design notes: Line angle Lower neutral attachment Revise assembly framing

◦ Pole length◦ Ground types and ground type elevation◦ Required vertical ground clearance◦ Vertical ground clearance under loaded condition

Engineering reports are essential:◦ For litigation support

◦ To analyze any future encroachments

◦ To verify and document engineering decisions

◦ To assure NESC compliance

◦ For a professional engineer to review and approve designs

Engineering report content◦ Clearance excess/deficit Clearance between conductors Conductor uplift Conductor gallop Vertical ground clearance to phase Vertical ground clearance to neutral Telecom spacing to electric object Telecom to low electric conductor along span Horizontal clearance to obstacle

Engineering report content◦ Strength utilization

Insulator utilization

Crossarm utilization

Pole utilization

Guy scheme utilization

Engineering/design should ensure field verification and documentation of as-built records including:◦ Each structure location

◦ Each cable/conductor attachment

◦ Each structural component on each structure

◦ Each piece of equipment with ratings

Does your utility/firm follow these standard protocols for design documentation and records management?

The electric utility industry continues to address significant challenges when it comes to hiring and retaining qualified personnel including distribution engineers and designers, with no expected relief in the short term.

Most practicing line design engineers and technicians come to this important responsibility with limited or no formal education and training. Line design is not an engineering discipline specifically addressed in most degree programs.

Many practicing distribution engineers and designers are following design practices that are not well-documented…and they may not know why these are the practices.

Many large distribution utilities (including Public Power) are contracting out the line design functions to consulting engineers.

Available training and continuing education for distribution line design is somewhat limited and often lacks rigor when it comes to the practical application of engineering principles and engineering calculations.

Training for overhead line staking is often inadequate in terms of engineering design.

How are most of your staff overhead distribution line design engineers and designers now being trained to perform their work? Do you have a written policy on training requirements for line designers? Formal external classroom training Formal internal classroom training Formal application software training Formal on-the-job training Continuing education

How are most of your staff overhead distribution line design engineers and designers now being trained to perform their work? Do you use examinations to verify competencies? Do you have any training certification requirements? Do you have a state approved apprenticeship program?

Use of line design software has been an industry standard in transmission line design for decades (e.g. PLS-CADD)

Distribution line design software is available but not as widely used…especially by smaller Public Power and Cooperative utilities

Distribution line staking software typically does not include engineering design capability

Key functions of line design software: Conductor design◦ Conductor sag and tension Integrate profile drawings with calculation results

Structure loading and strength calculations as prescribed by the NESC and GO-95 (California)◦ Poles◦ Arms◦ Guying schemes

Key functions of line design software: Span designs◦ Terrain modeling◦ Clearances to ground and structures◦ Conductor-to-conductor clearances (along the line)◦ Conductor-to-conductor clearances (at crossings)

Drafting and mapping functions◦ Engineering design◦ Staking sheets for construction◦ GIS/mapping records

Sample of Available products: Power Line Systems◦ PLS-CADD (terrain, sag-tension, loads, clearances and drafting functions)◦ PLS-CADD Lite (simplified edition of PLS-CADD for calculation of sags and

tensions in a single span, thermal ratings and structure loading trees for a single structure)◦ PLS-CADD/Ultralite (streamlined version of PLS-CADD for quick modeling of

a single span of conductor or wire. It develops a Sag-Tension report as well as Stringing Charts for a user definable range of span lengths and stringing temperatures)◦ PLS-Pole (analyzes and designs structures with wood, laminated wood, steel,

concrete or fiber reinforced polymer (FRP) poles, or modular aluminum masts)

Sample of Available products: Utility Line Design (terrain, sag-tension, loads, clearances and

compatibility with selected staking software)◦ One line section per profile drawing and engineering report◦ 7,500’ per Line Section◦ 31 structures per Line Section

Utility Line Design Documentation: Grade of Construction for each Structure, Ruling Span,

Loaded Design Tension for Phase and Neutral, Sags for Line Design Calculations, Vertical Ground Clearance for Ground Types

Profile Drawing: illustrates loaded final sags and initial sag at cold temperature

Strength Calculations: Insulator, Crossarm, Guy Scheme, Pole Clearance Calculations: Conductor Uplift, Conductor Gallop Analysis, Along

Span Conductor Clearance, Vertical Ground Clearance to Phase and Neutral, Horizontal Clearance to Obstacle

Telecommunication Calculations: Along Span Clearance to Neutral Conductor, Vertical Ground Clearance

Initial Stringing Chart

Sample of Available products:

Osmose O-Calc Pro (modeling of wood, steel, concrete, and composite poles and components, including multiple pole structures)

Spida Software Spidacalc (structural loading and analysis)

Expanded line design training and certification for engineers and designers

Increased use of structural design software for distribution lines Increased use of conductor sag and tension software and generation

of profiles for distribution lines Use of new technologies to expedite and improve the accuracy of

post-construction inspections and pre-design field data collection

Use of productivity and quality measures for engineers and designers

Use of design process project tracking and performance measures◦ Status against target dates for project milestones or meeting customer

commitments

◦ Total duration against target duration for design projects by type

What other overhead distribution line design practices would you like to explore further in any future RMEL Member surveys?

What did you learn today about overhead line design risk exposure and risk management that you did not know before?

What opportunities do you see to implement best practices in your utility’s present line design process?

PURPOSEThe Association for Utility Line Design Professionals (UtilityLDPros) has been created to promote

excellence in the design of overhead and underground electric and telecommunication utility lines. Our overall aim is to help our Member line designers and their employers achieve high levels of utility

line safety and performance.

MISSIONUtilityLDPros serves its Member line designers and their employers by providing training and

certification programs, continuing professional development programs, best practices assessments, support resources, and opportunities for professional

networking.

CORE VALUES

Application of best practices in utility line safety and performance

Self‐accountability for legal and regulatory compliance

Application of engineering principles and ethical engineering practices

Continuous learning and professional development

UtilityLDPros is also offering a two‐part (3 hours total) follow‐up webinar series on joint‐use on September 27th and October 18th. In addition to providing more in‐depth coverage on the preceding topics, this follow‐up series will also feature the following:

Joint‐use electric supply and communication line components and characteristics (including antennas)

Compliance with NESC clearance & spacing requirements (Part 2 – Overhead Lines)

Compliance with NESC strength requirements (Part 2 – Overhead Lines)

Compliance with NESC burial and separation requirements (Part 3 – Underground lines)

Elements of effective joint‐use agreements and processes

Joint‐use design guides and construction standards

Construction make‐ready, notification, installation/modification, and records management best practices

Real‐time survey questions and participant Q&A

1 ©2018 UtilityLDPros...PLS-CADD, O-CALC, Utility Line Design Software, PLS POLE We use Pole...

Documents

Transcript of 1 ©2018 UtilityLDPros...PLS-CADD, O-CALC, Utility Line Design Software, PLS POLE We use Pole...

PLS-CADD Drawing North - n 2016-0411... · PDF filePLS-CADD Drawing-0 100200 3004005006007008009001000110012001300 10 20 30 40 50 3, 3, 1 t-existsta=0.00ht=18.30 ele=27.20 87.12 3,

Ch-16 PLS CADD

Dielmo's LiDAR Power Line Mapping Solutions and PLS-CADD Modelling

PRELIMINARY DESIGN - transmission-nu.com 10 EX. 2... · pls-cadd drawing e r e 26 +. ° ' " + app gnd profile center

CVG’s Portfolio of Projectscvg.co.za/CVG List of Previous and Current Projects.pdf · PLS CADD Design for 2.5km double circuit steel lattice twin Tern line ... • PLS CADD structure

PLS-CADD DRAWING - VELCO · PDF filepls-cadd drawing 850+00 855+00 860+00 865+00 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600

PLS-CADD Seminar · 2020-05-21 · PLS-CADD on a transmission or distribution project from start to finish, including importing survey data, criteria development, struc- ... He has

PLS-CADD Class

Architectural CADD Courses @ First CADD

(Impress o de foto de p gina inteira) - Webnodefiles.labtopope.webnode.com/200000432-598cb5a84b/MANUAL_Glo… · • Exportar arquivo PLS-CADD XYZ • Exportar arquivo Polish MP (cGPSMapper)

Intelligent KMZ Files Modern Construction Packages Real ......Google Earth file with PLS-Cadd 3-D Model overlay merged with the intelligence in PLS-Cadd. Modernizing Construction Packages,

SCRRA CADD MANUAL - Metrolink CADD Manual CADD Manual ... 1.6.2 Lettering ... 2.0 CADD GUIDELINES AND CRITERIA ...

PLS-CADD Version 10.40 1:31:22 PM Thursday, February · PDF filePLS-CADD Version 10.40 1:31:22 PM Thursday, February 11, 2010 Tri-Axis Engineering Project Name: 'x:\Iberdrola\Tule

EEI Presentation - PLS CADD v4...Microsoft PowerPoint - EEI Presentation - PLS CADD v4.pptx Author brazy Created Date 10/17/2019 4:42:02 PM ...

Multi-Pole Structures and Embedment on slopes...Multi-Pole embedment with a side slope •Multi-Pole embedment with side slope adjustments need to be made in PLS-POLE to bring structure

PLS CADD, PLS Tower, PLS Pole - Power Line Systems...Manual templating Automatic spotting Generating .pfl profiles Setting up of profile sheets, drafting & annotation PLS CADD II

Horizonal Post Insulator Properties - powline.com - Horizonal...Horizontal Post Insulator Properties Jeffrey Miller, P.E. JAMCS Corporation PLS-CADD User’s Group Meeting July 14

PLS-CADD Class - Power Line Systems · PLS-CADD Class Registration Form April 11 - 15, 2016 in Madison, Wisconsin, USA Eac h attendee must s ubmit a c ompleted form to register –

CLOUD SERVICESlidarmag.com/wp-content/uploads/PDF/LIDARMagazine...in PLS-CADD software. LiDAR data and PI are imported into a PLS-CADD and the conductors are modelled accordingly to

3 Day Course Overview - Power Line Systems3 Day Course Overview in PLS CADD & PLS Pole Date/Venue: 3 8 – and optimized. In 10 April 2014 (Jhb) 24 – 26 June 2014 (Cape Town) 4 –