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2029 National Electrical Code

Public input on the 2029 Revision will be received until April 9th. Over the next weeks and months — typically meeting twice a day every Tuesday — we will pull forward our previous proposals and draft original proposals relevant to the education and healthcare electrotechnical infrastructure of educational settlements.  Link to Proposed Reorganization.

NFPA 70 2029 Revision Mike Anthony IEEE and Standards Michigan public input April 2026

2029 National Electrical Code Panel 1

2029 National Electrical Code Panel 3

 


Photo at 2723 State Street Office*

Mike was part of the National Electrical Code Quarter Century Club but was at another conference and not able to receive the award at the June conference.  University of Michigan support began in 1993.  IEEE support began in 2014.

*New Office (a short walk across the street) starting October 1: 455 East Eisenhower, Ann Arbor, MI 48108


Current Issues and Recent Research

Today we examine Second Draft transcripts of the Special Equipment Chapter 6 (CMP-12) and product inspection, testing and certification listings that appear Annex A (CMP-1).

 


Once every eighteen months we spend a week drilling into the National Electrical Code by submitting new proposals or comments on proposed revisions.  Today we review the actions taken by the technical committees on the First Draft.   Responses to committee actions will be received until August 26th.

2026 National Electrical Code Workspace


Premise Wiring

Interconnected Electric Power Production Sources “Microgrids”

National Electrical Definitions

Kitchen Wiring

Solarvoltaic PV Systems

Hospital Plug Load

Data Center Wiring

Electrical Inspector Professional Qualifications

Critical Operations Power Systems

Arenas, Lecture Halls & Theaters

Appliances

Emergency and Standby Power Systems

Luminaires, Lampholders, and Lamps

Electric Vehicle Power Transfer System

Art, Design & Fashion Studios

Wiring for Luminaires in High Ceiling Occupancies

Healthcare Facilities Code

“The Doctor”  1891 Sir Luke Fildes

The NFPA 99 Healthcare Facilities Code committee develops a distinct consensus document (i.e. “regulatory product”) that is distinct from National Electrical Code Article 517; though there are overlaps and gaps that are the natural consequence of changing technology and regulations.  It is worthwhile reviewing the scope of each committee:

NFPA 99 Scope: This Committee shall have primary responsibility for documents that contain criteria for safeguarding patients and health care personnel in the delivery of health care services within health care facilities: a) from fire, explosion, electrical, and related hazards resulting either from the use of anesthetic agents, medical gas equipment, electrical apparatus, and high frequency electricity, or from internal or external incidents that disrupt normal patient care; b) from fire and explosion hazards; c) in connection with the use of hyperbaric and hypobaric facilities for medical purposes; d) through performance, maintenance and testing criteria for electrical systems, both normal and essential; and e) through performance, maintenance and testing, and installation criteria: (1) for vacuum systems for medical or surgical purposes, and (2) for medical gas systems; and f) through performance, maintenance and testing of plumbing, heating, cooling , and ventilating in health care facilities.

NFPA 70 Article 517 Scope:  The provisions of this article shall apply to electrical construction and installation criteria in healthcare facilities that provide services to human beings.  The requirements in Parts II and III not only apply to single-function buildings but are also intended to be individually applied to their respective forms of occupancy within a multi-function building (e.g. a doctor’s examining room located within a limited care facility would be required to meet the provisions of 517.10)   Informational Note: For information concerning performance, maintenance, and testing criteria, refer to the appropriate health care facilities documents.

In short, NFPA 70 Article 517 is intended to focus only on electrical safety issues though electrotechnology complexity and integration in healthcare settings (security, telecommunications, wireless medical devices, fire safety, environmental air control, etc.) usually results in conceptual overlap with other regulatory products such as NFPA 101 (Life Safety Code) and the International Building Code.

Several issues were recently debated by the Article 517 technical committee during the 2023 National Electrical Code Second Draft meetings

  • The conditions under which reconditioned electrical equipment be installed in healthcare settings; contingent on listing and re-certification specifics.
  • Relaxation of the design rules for feeder and branch circuit sizing through the application of demand factors.
  • Application of ground fault circuit interrupters.
  • “Rightsizing” feeder and branch circuit power chains (Demand factors in Section 517.22)
  • Patient care space categories
  • Independence of power sources (517.30)

There are, of course, many others, not the least of which involves emergency management.  For over 20 years our concern has been for the interdependency of water and electrical power supply to university hospitals given that many of them are part of district energy systems.

We need to “touch” this code at least once a month because of its interdependence on other consensus products by other standards developing organizations.  To do this we refer NFPA 99 standards action to the IEEE Education & Healthcare Facilities Committee which meets online four times monthly in European and American time zones.

The transcript of NEC Article 517 Public Input for the 2023 revision of NFPA 70 is linked below.  (You may have to register your interest by setting up a free-access account):

Code-Making Panel 15 (NEC-P15) Public Input Report

Code-Making Panel 15 (NEC-P15) Public Comment Report

Technical committees will meet in June to endorse the 2023 National Electrical Code.

Public consultation on the Second Draft closes May 31st. Landing page for selected sections of the 2024 revision  of NFPA 99 are linked below:

Electrical Systems (HEA-ELS)

Fundamentals (HEA-FUN)

Health Care Emergency Management and Security (HEA-HES)

Second Draft Comments are linked below:

Electrical Systems (HEA-ELS)

Fundamentals (HEA-FUN)

Health Care Emergency Management and Security (HEA-HES)

NITMAM closing date: March 28, 2023

We break down NFPA 70 and NFPA 99 together and keep them on the standing agenda of both our Power and Health colloquia; open to everyone.  See our CALENDAR for the next online meeting.

"The trained nurse has become one of the great blessings of humanity, taking a place beside the physician and the priest" - William Osler"While we try to teach our children all about life, our children teach us what life is all about" - Angela Schwindt "The true art of pediatrics lies not only in curing diseases but also in preventing them" - Abraham JacobiGermany

Issues: [12-18, [15-97] and [16-101]

Contact: Mike Anthony, Jim Harvey, Robert Arno, Josh Elvove, Joe DeRosier, Larry Spielvogel

NFPA Staff Liaison: Jonathan Hart

Archive / NFPA 99

Kahn Health Care Pavilion

Our tenure in the 2026 National Electrical Code will result in at least a 10 percent reduction in the cost of building premise wiring — (mostly in the feeder power chain) — in healthcare facilities; based on the results of last month’s meeting of Code Making Panel 15.

Assuming electrical power infrastructure is 15 percent of in a $920 million facility like this (excluding interior moveable fixtures), that would have meant an approximate $14 million reduction in cost.  That cost savings cannot be realized because it was designed to an earlier version of the National Electrical Code.

Facilities and Operations

National Electrical Code CMP-15

Healthcare Facilities Code

Hospital Plug Load


Related:

New University of Michigan hospital to be named after philanthropists D. Dan and Betty Kahn

ORT America

$920M Michigan Medicine tower tops out, targets 2025 opening

 

Communication in the Presence of Noise

Communication in the Presence of Noise

Claude E. Shannon

University of Michigan – Bell Telephone Laboratories – Massachusetts Institute of Technology

Abstract. A method is developed for representing any communication system geometrically. Messages and the corresponding signals are points in two “function spaces,” and the modulation process is a mapping of one space into the other. Using this representation, a number of results in communication theory are deduced concerning expansion and compression of bandwidth and the threshold effect. Formulas are found for the maximum rate of transmission of binary digits over a system when the signal is perturbed by various types of noise. Some of the properties of “ideal” systems which transmit at this maxmum rate are discussed. The equivalent number of binary digits per second for certain information sources is calculated.

CLICK HERE to order complete paper

 

2028 National Electrical Safety Code

IEEE Standards Association Public Review

NESC 2028 Comments

 

Related Issues and Recent Research | Federal Legislation

“Rain in Charleston” 1951 Thomas Fransioli

This title sets the standard of care for construction, operation and maintenance of power and telecommunication infrastructure on the supply side of the point of common coupling. It is the first title to contemplate when weather disasters happen; with most public utilities bound to its best practice assertions by statute. Pre-print of Change Proposals for changes to appear in 2028 Edition will be available by 1 July 2025; with 24 March 2026 as the close date for comments on proposed changes.

Project Introduction for the 2028 Edition (2:39 minutes)

NESC 2028 Revision Schedule

Changes proposals for the Edition will be received until 15 May 2024

Proposals for the 2028 National Electrical Safety Code

Project Workspace: Update Data Tables in IEEE Recommended Practice for the Design of Reliable Industrial and Commercial Power Systems

Painting by Linda Kortesoja Klenczar

Federal Energy Regulatory Commission: Electrical Resource Adequacy

Relevant Research

NARUC Position on NFPA (NEC) and IEEE (NESC) Harmonization

The standard of care for electrical safety at high and low voltage is set by both the NEC and the NESC. There are gaps, however (or, at best “gray areas”) — the result of two technical cultures: utility power culture and building fire safety culture. There is also tradition. Local system conditions and local adaptation of regulations vary. Where there is a gap; the more rigorous requirement should govern safety of the public and workers.

The 2023 National Electrical Safety Code (NESC)– an IEEE title often mistaken for NFPA’s National Electrical Code (NEC) — was released for public use about six months ago; its normal 5-year revision cycle interrupted by the circumstances of the pandemic.   Compared with the copy cost of the NEC, the NESC is pricey, though appropriate for its target market — the electric utility industry.  Because the 2023 revision has not been effectively “field tested” almost all of the available support literature is, effectively, “sell sheets” for pay-for seminars and written by authors presenting themselves as experts for the battalions of litigators supporting the US utility industry.  Without the ability to sell the NESC to prospective “insiders” the NESC would not likely be commercial prospect for IEEE.   As the lawsuits and violations and conformance interests make their mark in the fullness of time; we shall see the 2023 NESC “at work”.

IEEE Standards Association: Additional Information, Articles, Tools, and Resources Related to the NESC

Office of the President: Economic Benefits of Increasing Electric Grid Resilience to Weather Outages

Research Tracks:

NARUC Resolution Urging Collaboration Between the National Electrical Safety Code and the National Electrical Code

Reliability of Communication Systems needed for the autonomous vehicle transformation

  1. Smart Grid Technologies:
    • Investigating advanced technologies to enhance the efficiency, reliability, and sustainability of power grids.
  2. Energy Storage Systems:
    • Researching and developing new energy storage technologies to improve grid stability and accommodate intermittent renewable energy sources.
  3. Distributed Generation Integration:
    • Studying methods to seamlessly integrate distributed energy resources such as solar panels and wind turbines into the existing power grid.
  4. Grid Resilience and Security:
    • Exploring technologies and strategies to enhance the resilience of power grids against cyber-attacks, natural disasters, and other threats.
  5. Demand Response Systems:
  6. Advanced Sensors and Monitoring:
    • Developing new sensor technologies and monitoring systems to enhance grid visibility, detect faults, and enable predictive maintenance.
  7. Power Quality and Reliability:
    • Studying methods to improve power quality, reduce voltage fluctuations, and enhance overall grid reliability.
  8. Integration of Electric Vehicles (EVs):
    • Researching the impact of widespread electric vehicle adoption on the grid and developing smart charging infrastructure.
  9. Grid Automation and Control:
    • Exploring advanced automation and control strategies to optimize grid operations, manage congestion, and improve overall system efficiency.
  10. Campus Distribution Grid Selling and Buying 

 


Relevant Technical Literature

IEC 60050 International Electrotechnical Vocabulary (IEV) – Part 601: Generation, transmission and distribution of electricity | April 16

Recommended Practice for Battery Management Systems in Energy Storage Applications | Comments Due March 26

Medical electrical equipment: basic safety and essential performance of medical beds for children | April 26

Medical electrical equipment: basic safety and essential performance of medical beds for children | April 26

 

Standards:

Presentation | FERC-NERC-Regional Entity Joint Inquiry Into Winter Storm Elliott

IEEE Guide for Joint Use of Utility Poles with Wireline and/or Wireless Facilities

NESC Rule 250B and Reliability Based Design

NESC Requirements (Strength and Loading)

Engineering Analysis of Possible Effects of 2017 NESC Change Proposal to Remove 60′ Exemption

National Electrical Safety Code Workspace


Joint Use of Electric Power Transmission & Distribution Facilities and Equipment

A Framework to Quantify the Value of Operational Resilience for Electric Power Distribution Systems

August 14, 2003 Power Outage at the University of Michigan

Technologies for Interoperability in Microgrids for Energy Access


National Electrical Safety Code: Revision Cycles 1993 through 2023

 


February 24, 2023

The new code goes into effect 1 February 2023, but is now available for access on IEEE Xplore! Produced exclusively by IEEE, the National Electrical Safety Code (NESC) specifies best practices for the safety of electric supply and communication utility systems at both public and private utilities.  The bibliography is expanding rapidly:

NESC 2023: Introduction to the National Electrical Safety Code

NESC 2023: Rule Changes

NESC 2023Safety Rules for Installation and Maintenance of Overhead Electric Supply

NESC 2023Safety Rules for the Installation and Maintenance of Underground Electric Supply and Communication Lines

NESC 2023: Rules for Installation and Maintenance of Electric Supply Stations

IEEE Digital Library

Grid Edge Visibility: Gaps and a road map


October 31, 2022

The IEEE NESC technical committee has released a “fast track” review of proposed changes to fault-managed power system best practice:

CP5605 Provides a definition of new Fault Managed Power System (FMPS) circuits used for the powering of
communications equipment clearly defines what constitutes a FMPS circuit for the purposes of application of the NESC
Rules of 224 and 344
https://ieee-sa.imeetcentral.com/p/eAAAAAAASPXtAAAAADhMnPs

CP5606 Provides new definitions of Communication Lines to help ensure that Fault Managed Power Systems (FMPS)
circuits used for the exclusive powering of communications equipment are clearly identified as communications lines
and makes an explicit connection to Rule 224B where the applicable rules for such powering circuits are found.
https://ieee-sa.imeetcentral.com/p/eAAAAAAASPXpAAAAAFfvWIs

CP5607 The addition of this exception permits cables containing Fault Managed Power System (FMPS) circuits used for
the exclusive powering of communications equipment to be installed without a shield.
https://ieee-sa.imeetcentral.com/p/eAAAAAAASPXuAAAAAEEt3p4

CP5608 The addition of this exception permits cables containing Fault Managed Power System (FMPS) circuits used for
the exclusive powering of communications equipment to be installed without a shield.
https://ieee-sa.imeetcentral.com/p/eAAAAAAASPXvAAAAAGrzyeI

We refer them to the IEEE Education & Healthcare Facilities Committee for further action, if any.

 


August 5, 2022

We collaborate closely with the IEEE Education & Healthcare Facilities Committee (IEEE E&H) to negotiate the standard of care for power security on the #SmartCampus  since many campus power systems are larger than publicly regulated utilities.  Even when they are smaller, the guidance in building the premise wiring system — whether the premise is within a building, outside the building (in which the entire geography of the campus footprint is the premise), is inspired by IEEE Standards Association administrated technical committees.

Northeast Community College | Norfolk, Nebraska

Today we begin a list of noteworthy changes to be understood in the next few Power colloquia.  See our CALENDAR for the next online meeting.

  1. New rules 190 through 195 cover photovoltaic generating stations.  Rule 116c adds an exception for short lengths of insulated power cables and short-circuit protection if the situation involves fewer than 1,000 volts.
  2. Rule 320B has been revised to clarify separations that apply to communications and supply in different conduit systems.
  3. Table 410-4 is based on the latest arc flash testing on live-front transformers.
  4. Rule 092A adds an exception allowing protection, control, and safety battery systems to not be grounded.
  5. Rules 234 B1, C1, D1 were revised to better present vertical and horizontal wind clearances, and to coordinate requirements with the new Table 234-7.
  6. Rule 120A was revised to provide correction factors for clearances on higher elevations.
  7. Table 253-1 has been revised to reduce the load factor for fiber-reinforced polymer components under wire tension—including dead ends—for Grade C construction.
  8. Rule 410A now requires a specific radio-frequency safety program for employees who might be exposed.
  9. In the Clearances section, as well as in the specification of the Grade of Construction in Table 242-1, the Code further clarifies the use of non-hazardous fiber optic cables as telecom providers continue to expand their networks.
  10. Revisions in the Strength & Loading sections include modified Rule 250C, which addresses extreme wind loading for overhead lines. Two wind maps are now provided instead of the previous single one. A map for Grade B, the highest grade of construction, with a Mean Recurrence Interval (MRI) of 100 years (corresponding to a one percent annual probability of occurrence) is provided in place of the previous 50–90-year MRI map. For Grade C construction, a separate 50-year MRI (two percent annual probability of occurrence) map is now provided. In the previous Code, a factor was applied to the 50–90-year MRI map for application to Grade C.
  11. Changes were also made to the method of determining the corresponding wind loads, consistent with the latest engineering practices as an example of a Code revision focused on public safety, the ground end of all anchor guys adjacent to regularly traveled pedestrian thoroughfares, such as sidewalks, and similar places where people can be found must include a substantial and conspicuous marker to help prevent accidents. The previous Code did not require the marking of every such anchor guy.
  12. Significant revisions were made in Section 14 covering batteries. Previous editions of the code were based on lead-acid technology and batteries only used for backup power. The 2023 Code incorporates the new battery technologies and addresses energy storage and backup power.
  13. A new Section 19 of the code covers photovoltaic generating stations, with sections addressing general codes, location, grounding configurations, vegetation management, DC overcurrent protection, and DC conductors. These new rules accommodate large-scale solar power projects.
  14. In the Clearances section, all rules for wireless antenna structures have been consolidated in the equipment section (Rule 238 and 239), which makes the Code more user-friendly.
  15. A new subcommittee was created focusing on generating stations, with the original subcommittee continuing to address substations.
  16. A working group is investigating Fault Managed Power Systems (FMPS) cables as the technology may be used for 5G networks. The team is looking at possible impacts, including clearances and work rules.

 


February 18, 2021

 

Several proposals recommending improvements to the 2017 National Electrical Safety Code (NESC) were submitted to the IEEE subcommittees drafting the 2022 revision of the NESC.   Some of the proposals deal with coordination with the National Electrical Code — which is now in its 2023 revision cycle.  Keep in mind that that NESC is revised every 5 years at the moment; the NEC is revised every 3 years.

The original University of Michigan standards advocacy enterprise has been active in writing the NESC since the 2012 edition and set up a workspace for use by electrical professionals in the education industry.   We will be using this workspace as the 2022 NESC continues along its developmental path:

IEEE 2022 NESC Workspace

The revision schedule — also revised in response to the circumstances of the pandemic — is linked below::

NESC 2023 Edition Revision Schedule*

 

The NESC is a standing item on the 4-times monthly teleconferences of the IEEE Education & Healthcare Facilities committee.  The next online meeting is shown on the top menu of the IEEE E&H website:

IEEE E&H Committee

We have a copy of the first draft of the 2023 NESC and welcome anyone to join us for an online examination during any of Power & ICT teleconferences.  See our CALENDAR for the next online meeting.

Business unit leaders, facility managers and electrical engineers working in the education facilities industry may be interested in the campus power system reliability database.   Forced outages on large research campuses, for example, can have enterprise interruption cost of $100,000 to $1,000,000 per minute.    The campus power system forced outage database discriminates between forced outages attributed to public utility interruptions and forced outages attributed to the university-owned power system.   The E&H committee will convey some of the discipline applied by the IEEE 1366 technical committee into its study of campus power systems and, ultimately, setting a benchmark for the standard of care for large university power systems.

 

 

* The IEEE changed the nominal date of the next edition; likely owed to pandemic-related slowdown typical for most standards developing organizations.

Issue: [16-67]

Contact: Mike Anthony, Robert G. Arno, Lorne Clark, Nehad El-Sharif, Jim Harvey, Kane Howard, Joe Weber, Guiseppe Parise, Jim Murphy

Category: Electrical, Energy Conservation & Management, Occupational Safety

ARCHIVE: University of Michigan Advocacy in the NESC 2007 – 2017


LEARN MORE:

P1366 – Guide for Electric Power Distribution Reliability Indices 

University Design Guidelines that reference the National Electrical Safety Code

 

Campus Outdoor Lighting

“The Starry Night” | Vincent van Gogh

The IEEE Education & Healthcare Facilities Committee has completed a chapter on recommended practice for designing, building, operating and maintaining campus exterior lighting systems in the forthcoming IEEE 3001.9 Recommended Practice for the Design of Power Systems for Supplying Commercial and Industrial Lighting Systems; a new IEEE Standards Association title inspired by, and derived from, the legacy “IEEE Red Book“.  The entire IEEE Color Book suite is in the process of being replaced by the IEEE 3000 Standards Collection™  which offers faster-moving and more scaleable, guidance to campus power system designers.

Campus exterior lighting systems generally run in the 100 to 10,000 fixture range and are, arguably, the most visible characteristic of public safety infrastructure.   Some major research universities have exterior lighting systems that are larger and more complex than cooperative and municipal power company lighting systems which are regulated by public service commissions.

While there has been considerable expertise in developing illumination concepts by the National Electrical Manufacturers Association, Illumination Engineering Society, the American Society of Heating and Refrigeration Engineers, the International Electrotechnical Commission and the International Commission on Illumination, none of them contribute to leading practice discovery for the actual power chain for these large scale systems on a college campus.   The standard of care has been borrowed, somewhat anecdotally, from public utility community lighting system practice.  These concepts need to be revisited as the emergent #SmartCampus takes shape.

Electrical power professionals who service the education and university-affiliated healthcare facility industry should communicate directly with Mike Anthony (maanthon@umich.edu) or Jim Harvey (jharvey@umich.edu).  This project is also on the standing agenda of the IEEE E&H committee which meets online 4 times monthly — every other Tuesday — in European and American time zones.  Login credentials are available on its draft agenda page.

Issue: [15-199]

Category: Electrical, Public Safety, Architectural, #SmartCampus, Space Planning, Risk Management

Contact: Mike Anthony, Kane Howard, Jim Harvey, Dev Paul, Steven Townsend, Kane Howard


LEARN MORE:

“Tea, Earl Grey, Hot”

The command issued by the character Captain Jean-Luc Picard in the television series “Star Trek: The Next Generation” finds its way into the archive of photographs of Nobel Laureates consorting with politicians at the University of Michigan and elsewhere.

Attendees of the Theoretical Physics Colloquium at the University of Michigan in 1929.

American Institute of Physics Archive

Ex Libris Universum

…”There’s not good math explaining forget the physics of it.  Math explaining the behavior of complex systems yeah and that to me is both exciting and paralyzing like we’re at very early days of understanding you know how complicated and fascinating things emerge from simple rules…” — Peter Woit [1:16:00]

Coffee & Tea Standards


Since 1936 the Brown Jug has been the ancestral trough of generations of University of Michigan students and faculty — notably. Donald Glaser (inventor of the bubble chamber) and Samuel C. C. Ting (Nobel Laureate) whose offices at Randall Laboratory were a 2-minute walk around the corner from The Brown Jug.  As the lore goes, the inspiration happened whilst watching beer bubbles one ordinary TGIF Friday.

The Brown Jug is named after the Michigan vs Minnesota football trophy, which is the oldest in college football.

Transmission Line Right-of-Way

 

Optimization of Transmission Line Right-of-Way

Ajaykumar Patel, et. al

School of Engineering & Technology, Central Queensland University, Melbourne, Australia

 

Abstract: A specific land is required to design the transmission line to construct effectively and maintain properly is called right of way of transmission line. It is calculated by considering mainly three electrical quantity related transmission line such as electric field, magnetic field and radio interference. Corona effect is considered for the evolution of right of way. By considering these parameters, it provide idea related to effect surrounding the area nearby transmission line.

The determination of transmission line right of way for public electric utilities typically involves a combination of legal considerations, regulatory requirements, environmental assessments, and public engagement: 

Planning and Route Selection: Public electric utilities assess their power transmission needs based on factors such as population growth, energy demand, and infrastructure upgrades. They consider various potential routes and alternatives, taking into account factors like terrain, existing infrastructure, land use, and environmental sensitivities.

Environmental and Impact Assessments: Utilities conduct environmental and impact assessments to evaluate the potential effects of the proposed transmission line routes. These assessments examine factors such as wildlife habitats, endangered species, wetlands, water bodies, cultural or historical sites, and scenic landscapes. The purpose is to identify potential impacts and propose mitigation measures.

Regulatory and Permitting Process: Public utilities must comply with applicable laws and regulations governing transmission line development. This includes obtaining necessary permits and approvals from relevant regulatory agencies at the federal, state, and local levels. The requirements vary depending on the jurisdiction, but they often involve environmental agencies, land management agencies, and public utility commissions.

Public Engagement and Consultation: Utilities engage in public consultation and outreach to gather feedback from affected communities, landowners, and stakeholders. They conduct public hearings, open houses, and meetings to inform the public about the project, address concerns, and consider alternative routes suggested by the community. This engagement helps ensure transparency and public input in the decision-making process.

Negotiations and Eminent Domain: Utilities negotiate with landowners along the proposed transmission line route to acquire the necessary right of way. In some cases, if an agreement cannot be reached, utilities may exercise eminent domain, which is a legal process that allows them to acquire the land for public use while providing just compensation to the affected landowner.

Legal Framework: The legal framework for determining transmission line right of way varies by jurisdiction. Laws related to land use, zoning, environmental protection, and eminent domain play a role in defining the process and requirements for securing right of way.

Procedures vary depending on the country, state, or region where the transmission line is being developed. Local regulations, environmental conditions, and public engagement practices will influence the overall process.

Related:

Optimization of Transmission Line Right-of-Way

Reducing the duration of right-of-way acquisition process for high voltage transmission power lines projects

Diminishing the Right of Way (RoW) With Multi Voltage Multi Terminal Transmission Tower

Information System for the Vegetation Control of Transmission Lines Right-of-way

Partially underground transmission circuits: safety issue for current and future power systems

2028 National Electrical Safety Code

IEEE Guide to the Installation of Overhead Transmission Line Conductors, IEEE Std. 524, 1992

Pacific Gas & Electric: Overhead Transmission Line Design Criteria

US Department of Agriculture Rural Utilities Service: Design Manual for High Voltage Transmission Lines

2022 Guide for Animal Deterrents for Electric Power Supply Substations

1264-2022 – IEEE Guide for Animal Mitigation for Electric Power Supply Substations

IEEE Power Engineering Society

Abstract: Documented in this guide are methods and designs to mitigate interruptions, equipment damage, and personnel safety issues resulting from animal intrusions into electric power supply substations, thereby improving reliability and safety, and minimizing the associated revenue loss.
Scope: This guide documents methods and designs to mitigate interruptions, equipment damage, and personnel safety issues resulting from animal intrusions into electric power supply substations, thereby improving reliability and safety, and minimizing the associated revenue loss.
Purpose: Intrusion by animals into electric power supply substations has been a problem experienced by most of the electric utility industry. The costs associated with outages caused by animals continue to escalate. Although animal problems differ in nature geographically, the damage to equipment, interruption of or loss of service to customers, and safety problems encountered by operating personnel result in similar general concerns. This guide identifies various animals, the problems they cause, and mitigation methods. Further, it recommends criteria for applying mitigation methods, documents survey-reported effectiveness of various methods, and recommends factors for evaluating effectiveness of methods once they are applied.

CLICK HERE to order the guide

Related:

IEEE Standards Association

PES General Meeting 16-20 July | Orlando

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