Even rest has its measure. While topic presentation will continue according to our CALENDAR our daily colloquia will not resume until August 20.
“Harvest at Rest” George Cole 1865
Summer Sabbatica
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Iced Coffee: Summer Only or Year Round?
Investing in Purdue’s Future: Major Capital Project 2024 | Standards Indiana
Dietrich Bonhoeffer: The Terrifying Theory of Stupidity
The Iced Coffee Hour: The Most Terrifying IQ Statistics | Jordan Peterson
Neil Armstrong: Moon Walker. Innovator. Boilermaker.
When it comes to space exploration, Purdue University stands out — 27 astronauts strong. Neil Armstrong (BS aeronautical engineering ’55) was the first person to walk on the moon. Eugene Cernan (BS electrical engineering ’56)… pic.twitter.com/qDHv71NEqK
— Purdue Engineering (@PurdueEngineers) August 5, 2024
Found this photo with my sister… and it took me back. Remember when beauty was just how we lived? No filters— just real smiles 💛 pic.twitter.com/yQ159KvZqa
— G-MA & G-PA (@GPAIndiana) May 24, 2026
Dawn Chorus: Bird Song
“Awake, harp and lyre! I will awaken the dawn.”
Standards New York | ♡ Homophily New York ♡
Animal Welfare Act (AWA) Regulations for Birds (9 CFR Part 3, Subpart G)
@CornellPondCam End of day at Sapsucker Woods … pic.twitter.com/zbE5BMEZlp
— susan dimitrakopoulos (@nightsky333) November 10, 2020
University Policy 1.2: Research Integrity
Cornell University’s status as a land-grant institution, coupled with its location in Ithaca, far from New York’s urban centers, fosters a campus atmosphere of grounded normalcy. As a land-grant university, Cornell emphasizes practical education, research, and outreach, rooted in its mission to serve the public good. This ethos cultivates a community focused on collaboration and accessibility rather than elitism.
Ithaca’s rural setting, surrounded by gorges and rolling hills, creates a tight-knit, insulated environment where students engage deeply with academics and each other without the distractions of a bustling city. The slower pace encourages a balanced lifestyle, with traditions like Slope Day and local eateries fostering camaraderie. The lack of urban pressures allows for a focus on intellectual curiosity and personal connections, while diverse student organizations and cooperative extension programs reinforce a sense of purpose and community, grounding Cornell’s atmosphere in authenticity and approachability.
Methods of Building Measurement
“The Ideal City” 1480 Giuliano da Sangallo
Inspired by Lord Kelvin’s “If you can not measure it, you can not improve it” and Peter Drucker’s adage “If you can’t measure it, You can’t improve it” and W. Edwards Deming’s counter-argument — “It is wrong to suppose that if you can’t measure it, you can’t manage it – a costly myth.” we present the standards catalog of the Building Owner’s Management Association:
BOMA Area Measurement Standards Timeline 1915-2021
At the moment all titles in this catalog seem to be stabilized although a great deal of economic activity in the commercial real estate market involves adjustment to the circumstances of the pandemic. Largely because a sizeable portion of square footage in every school district, college, university and university-affiliated healthcare research and clinical delivery system derives at least part of its funding from governments at all levels there are workgroups devoted to measuring square footage and documenting its use. For example:
Space Management: University of Oklahoma
Space Management: Texas A&M University-San Antonio
Space Management Policy: University at Buffalo
Getting square-footage right is essential for securing an organization’s sustainability and “green” claims for example. The links in previous posts provide for information about future public consultations.
We maintain the BOMA catalog on the agenda of our Space Planning, Hammurabi and Architectural colloquia, hosted 6 to 8 times annually. See our CALENDAR for the next online meeting, open to everyone.
Posted March 20, 2021
We drill into the specifics commonly found in education communities: sub-lease of space to private industry in publicly-owned facilities. The Building Owners and Managers Association International is an ANSI-accredited consensus standard developer and revised its standard — BOMA Z65.5 Retail Properties: Standard Method of Measurement. Measuring the area of a retail building can quickly become complex when variables must be considered such as ancillary space, mezzanines and storefront lease lines. Many large research universities have long since leased space within many of their building envelopes for private industry to service their communities — student unions, hospitals, dormitories and athletic venues, for example. From the project prospectus:
Z65.5 is intended exclusively for retail properties and their associated structures and may be applied to single-tenant, multi-tenant or multi-building configurations. It features a single method of measurement, with two levels of measurement data, known as Partial Measurement and Overall Measurement for retail properties. It does not measure sidewalks, surface parking, drainage structures, or other ancillary site improvements. This standard is chiefly designed to generate Gross Leasable Area figures, a key metric in retail leasing; however, it also produces area figures which may be of interest to those examining space utilization, valuation, benchmarking, and the allocation of building expenses to various cost centers. The scope of this standard is not intended to be submitted for consideration as an ISO, IEC, or ISO/IEC JTC-1 standard.
Public consultation is open until February 8th.
You may obtain an electronic copy from: floorstandards@boma.org. Send comments (with optional copy to psa@ansi.org) to: floorstandards@boma.org. We encourage user-interest subject matter experts in education facility management to participate directly in the BOMA standards development process by communicating directly with Tanner Johnson at BOMA (tjohnston@boma.org) or 202-326-6357 for more information.
We keep the BOMA catalog on the standing agenda of our colloquia devoted to building construction best practice. See our CALENDAR for the next online meeting; open to everyone.
Issue: [14-117]
Category: Architectural, Facility Asset Management
Colleagues: Jack Janveja, Richard Robben
More
Carnegie Classification of Institutions of Higher Education
Posted February, 20 2020
The Building Owners and Managers Association International (BOMA) is an ANSI-accredited consensus standard developer. BOMA has initiated the process of revising its real property measurement standard — BOMA Z65.2 For Industrial Buildings: Standard Methods of Measurement. The primary objectives of this standard are:
– To promote an unambiguous framework for determining the areas of Industrial Buildings with a strong focus on Rentable Area calculations;
– To facilitate transparency and clear communication of building measurement concepts among all participants in the commercial real estate
industry;
– To allow a comparison of values on the basis of a clearly understood and generally agreed upon method of measurement; and
– To align concepts and measurement methodologies with the International Property Measurement Standards: Industrial Buildings (January 2018)
document.
Comments due March 15th
Click here to view these changes in full (Page 2)
Send comments (with optional copy to psa@ansi.org) to: tjohnston@boma.org
Standards Michigan follows, but d0es not advocate in most of the BOMA standards suite for the following reasons:
- Educational facility occupancies are fairly well accounted for in existing federal and state regulations
- Advocacy in energy-related best practice titles are a better use of resources at the moment.
We encourage user-interest subject matter experts in education facility management to participate directly in the BOMA standards development process by communicating directly with Tanner Johnson at BOMA (tjohnston@boma.org) or 202-326-6357 for more information.
We maintain the entire BOMA suite on our periodic Model Building Code colloquia. See our CALENDAR for the next online meeting; open to everyone.
Issue: [15-200]
Category: Architectural, Space Plaaning, Facility Asset Management
Colleagues: Jack Janveja, Richard Robben
LEARN MORE:
Facilities Information Management
Guideline for Square Footage Requirements for Educational Facilities
Guide to School Site Analysis and Development
5.18.20
Quadrivium: Summer
ANSI Standards Action July 31, 2026 | Bulletin Board
“…in August in Mississippi there’s a few days somewhere about the middle of the month when suddenly there’s a foretaste of fall, it’s cool, there’s a lambence, a soft, a luminous quality to the light, as though it came not from just today but from back in the old classic times. It might have fauns and satyrs and the gods and—from Greece, from Olympus in it somewhere. It lasts just for a day or two, then it’s gone…” — William Faulkner
§
“A Break from the Harvest” | Julien Dupre (public domain)
Our use of the term “Educational Settlements” captures the self-contained energy of these places — kindergartens, classrooms, quads, dining halls, dorms, and nearby squares buzzing with student life amid broader higher-ed shifts like the “demographic cliff” (declining traditional enrollments), AI integration, skills-focused curricula, and financial pressures. (Related: Agora)
The Stanford Review: Marry Young
65% of the nation’s 3,100 counties—home to 28% of the U.S. population—had more deaths than births.
Our nation should be having more baby showers than funerals. pic.twitter.com/H7kPSCERUU
— Katie Miller (@KatieMiller) March 29, 2026
Macdonald-Laurier Institute: How to Reverse Collapsing Birth Rates
Trending | Engagements, Weddings & Births | Sport News | Carillons
Starting 2026 we will organize our weekly syllabi in a less structured but in a more time sensitive manner. Stay tuned.
100 years ago, the Supreme Court made it clear in Pierce v. Society of Sisters: raising children is the responsibility of parents, not the government.
100 years later, the Trump Administration remains committed to protecting parental rights. pic.twitter.com/yduXdLShty
— Secretary Linda McMahon (@EDSecMcMahon) June 1, 2025
https://standardsmichigan.com/wp-admin/post.php?post=75791&action=edit#visibility
“…O chestnut tree;, great rooted blossomer,
Are you the leaf, the blossom or the bold?
O body swayed to music, O brightening glance,
How can we know the dancer from the dance?”
— Among Schoolchildren, 1933 William Butler Yeats
We sweep through the world’s three major time zones; updating our understanding of the literature at the technical foundation of education community safety and sustainability in those time zones 24 times per day. We generally eschew “over-coding” web pages to sustain speed, revision cadence and richness of content as peak priority. We do not provide a search facility because of copyrights of publishers and time sensitivity of almost everything we do.
Readings:
“The Advancement of Learning” Francis Bacon (1605)
“The Allegory of the Cave” 380 BCE | Plato’s Republic, Book VII
Thucydides: Pericles’ Funeral Oration
IEEE Access: Advanced Deep Learning Models for 6G: Overview, Opportunities, and Challenges | Xidian University
“Albion: The Origins of the English Imagination” (2002) Peter Ackroyd
“Bitcoin: A Peer-to-Peer Electronic Cash System” Satoshi Nakamoto
“Extraordinary Popular Delusions and the Madness of Crowds” (1841) | Charles Mackay
Cognitive Science: An Introduction to the Study of Mind
“Kant’s Categorical Imperative” | Hillsdale College Introduction to Western Philosophy
“The Natural History of Stupidity” (1959) Paul Tabori
“The College Idea: Andrew Delbanco” Lapham’s Quarterly
Distributed Representations of Words and Phrases and their Compositionality | Google, Inc. et, al
Our daily colloquia are typically doing sessions; with non-USA titles receiving priority until 16:00 UTC and all other titles thereafter. We assume policy objectives are established (Safer-Simpler-Lower-Cost, Longer-Lasting). Because we necessarily get into the weeds, and because much of the content is time-sensitive and copyright protected, we usually schedule a separate time slot to hammer on technical specifics so that our response to consultations are meaningful and contribute to the goals of the standards developing organization and to the goals of stewards of education community real assets — typically the largest real asset owned by any US state and about 50 percent of its annual budget.
1. Leviathan. We track noteworthy legislative proposals in the United States 118th Congress. Not many deal specifically with education community real assets since the relevant legislation is already under administrative control of various Executive Branch Departments such as the Department of Education.
We do not advocate in legislative activity at any level. We respond to public consultations but there it ends.
We track federal legislative action because it provides a stroboscopic view of the moment — the “national conversation”– in communities that are simultaneously a business and a culture. Even though more than 90 percent of such proposals are at the mercy of the party leadership the process does enlighten the strengths and weakness of a governance system run entirely through the counties on the periphery of Washington D.C. It is impossible to solve technical problems in facilities without sensitivity to the zietgeist that has accelerated in education communities everywhere.
Michigan Great Lake Quilt
Michigan can 100% water and feed itself. Agriculture is its second-largest industry.
2. National Institute of Standards and Technology (NIST)
3. American National Standards Institute (ANSI)
4. Fast Forward
5. Rewind
6. Corrigenda
“The world will never starve for want of wonders;
but only for want of wonder.”
– G.K Chesterton, The Spirit of Christmas (1905)
Mike Anthony with colleagues since 1982 @ UM Ross School of Business Executive Dining Room
S. 542: English Language Unity Act of 2025
Hanging Gardens of Babylon | National Geographic
Related:
The White House: Designating English as the Official Language of The United States
H.R. 9742 (IH) – English Language Proficiency Act
Standardize: Aligning Language Models with Expert-Defined Standards for Content Generation
The language of the Internet is shaped by large language models, international standards, and software platforms developed by people from many linguistic backgrounds. The challenge is not that many contributors are non-native English speakers — and that is a serious cultural problem — the challenge is ensuring that, despite the differences in how English is taught, understood and used — technical English remains precise, stable, and consistently interpreted.
Ambiguous wording, subtle shifts in meaning, or differing cultural assumptions can introduce confusion into engineering, law, medicine, and public policy when replicated at Internet scale. The remedy is not linguistic exclusivity but stronger standards: carefully defined vocabularies, consensus terminology, authoritative style guides, and rigorous editorial review by diverse experts.
English has become the principal working language of science, engineering, and commerce because it supports a vast body of technical literature and international collaboration. Preserving its precision is therefore a matter of stewardship. As AI systems increasingly generate and interpret technical information, maintaining a common, standards-based engineering English will become as important as maintaining reliable communication networks themselves.
Current Issues & Recent Research
“The day science begins to study non-physical phenomena,
it will make more progress in one decade
than in all the previous centuries of existence.”
Restore NESC Cross-Reference to the Front End of the NEC
Electrical Power System Research
NFPA Electrical Standards Landing Page Ω NFPA Standards Council Ω NFPA Fire Safety Landing Page
ASHRAE Landing Page | ASTM Electrical & Electronics | IES Illumination
Draft IEEE Paper Abstracts | Mike Anthony Short Biography | Electrotechnology OEMS
IEEE Education & Healthcare Facilities Committee Recent Meeting Minutes
Michigan Stadium Scoreboard Tour | March 18
Ω
 IEEE Southeastern Michigan Section Welcome August 2024
|
 IEEE & SWE Student Tour of Michigan Stadium Scoreboard | April 2024 |
IEEE SEM Student Activity 2025
Electrical Power System Research
NFPA Electrical Standards Landing Page Ω NFPA Standards Council Ω NFPA Fire Safety Landing Page
ASHRAE Landing Page | ASTM Electrical & Electronics
Draft IEEE Paper Abstracts | Mike Anthony Short Biography | Electrotechnology OEMS
We examine the proposals for the 2028 National Electrical Safety Code; including our own. The 2026 National Electrical Code where sit on CMP-15 overseeing health care facility electrical issues should be released any day now. We have one proposal on the agenda of the International Code Council’s Group B Committee Action Hearings in Cleveland in October. Balloting on the next IEEE Gold Book on reliability should begin.
“Tomorrow’s Girls” | Donald Fagan
Policy:
OUTERNET: Crossing over data gap using cubesats
Department of Energy Portfolio Analysis & Management System
Department of Energy Building Technologies Office
FERC Open Meetings | (Note that these ~60 minute sessions meet Sunshine Act requirements. Our interest lies one or two levels deeper into the technicals underlying the administrivia)
| Federal Energy Regulatory Commission | Federal Communication Commission | Michigan Public Service Commission |
| December 18 Open Meeting | December 5 Open Meeting | |
| August 7 Open Meeting | ||
| July 24 Open Meeting | July 25 Open Meeting | |
| June 16 Open Meeting | January 22: Newly Appointed FCC Chairman Announces Staff Changes | June 12 Open Meeting |
| May 15 Open Meeting | May 15 Open Meeting | |
| April 17 Open Meeting | April 24 Open Meeting | |
| March 20 Open Meeting | ||
| February 20 FERC Open Meeting | March 3 Open Meeting | |
| January 16 FERC Press Conference | February 27, 2025 Open Meeting | |
January 23: NARUC Congratulates New FERC, FCC and NRC Chairs
January 22: Newly Appointed FCC Chairman Announces Staff Changes | Related: Falsus in uno, Falsus in omnibus
January 6: City of Ann Arbor Postpones Phase II Study to Municipalize DTE Energy distribution grid
January 27, 10 AM Low-Income Energy Policy Board Meeting: Michigan Public Service commission
Federal Energy Regulatory Commission: January 16, 2025 Open Meeting
Federal Energy Regulatory Commission Notice of Request for Comments (Posted November 25, 2024)
Federal Energy Regulatory Commission | November 21, Open Meeting
Michigan Public Service Commission Meetings
Michigan Public Commission Meeting February 27, 2025
MPSC DTE CMS Electric Power Reliability Case No. U-21305
Michigan Electrical Administrative Board Meeting February 13, 2025
FCC Open Meeting | November 21
Technical: (Also Electrical Power System Research)
Empower Pre-Trained Large Language Models for Building-Level Load Forecasting
Uptime Institute (via NEXT DC) : AI Inference in the Data Center
Majorana Nanowires for Topological Quantum Computing
Linearized Data Center Workload and Cooling Management
Oxford Researchers Discovered How to Use AI To Learn Like A Genius
Lex Fridman: DeepSeek, China, OpenAI, NVIDIA, xAI, TSMC, Stargate, and AI Megaclusters
IEEE: Experts Weigh in on $500B Stargate Project for AI
IEEE: AI Mistakes Are Very Different Than Human Mistakes . We need new security systems designed to deal with their weirdness
High-Performance Tensor Learning Primitives Using GPU Tensor Cores
Department of Electrical Engineering, Columbia University, New York
Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei City, Taiwan
First Draft Proposals contain most of our proposals — and most new (original) content. We will keep the transcripts linked below but will migrate them to a new page starting 2025:
2026 NEC Standards Michigan proposals | Public Input Report CMP-1
2026 NEC Standards Michigan proposals | Public Input Report CMP-2
2026 NEC Standards Michigan proposals | Public Input Report CMP-4
2026 NEC Standards Michigan proposals | Public Input Report CMP-5
2026 NEC Standards Michigan proposals | Public Input Report CMP-10
2026 NEC Standards Michigan proposals | Public Input Report CMP-11
2026 NEC Standards Michigan proposals | Public Input Report CMP-12
2026 NEC Standards Michigan proposals | Public Input Report CMP-13
2026 NEC Standards Michigan proposals | Public Input Report CMP-15
2026 NEC Standards Michigan proposals | Public Input Report CMP-16
2026 NEC Standards Michigan proposals | Public Input Report CMP-18
Related:
N.B. We are in the process of migrating electric power system research to the Institute of Electrical and Electronics Engineers bibliographic format.
Recap of the May meetings of the Industrial & Commercial Power Systems Conference in Las Vegas. The conference ended the day before the beginning of the 3-day Memorial Day weekend in the United States so we’re pressed for time; given all that happened.
We can use our last meeting’s agenda to refresh the status of the issues.
IEEE E&H Draft Agenda 28 May 2024
On site conference agenda:
IEEE E&H Conference Agenda 21 May 2024
We typically break down our discussion into the topics listed below:
Codes & Standards:
While IAS/I&CPS has directed votes on the NEC; Mike is the only I&CPS member who is actually submitting proposals and responses to codes and standards developers to the more dominant SDO’s — International Code Council, ASHRAE International, UL, ASTM International, IEC & ISO. Mike maintains his offer to train the next generation of “code writers and vote getters”
Performance-based building premises feeder design has been proposed for the better part of ten NEC revision cycles. The objective of these proposals is to reduce material, labor and energy waste owed to the branch and feeder sizing rules that are prescriptive in Articles 210-235. Our work in service and lighting branch circuit design has been largely successful. A great deal of building interior power chain involves feeders — the network upstream from branch circuit panels but down stream from building service panel.
Our history of advocating for developing this approach, inspired by the NFPA 101 Guide to Alternative Approaches to Life Safety, and recounted in recent proposals for installing performance-based electrical feeder design into the International Building Code, appears in the link below:
Access to this draft paper for presentation at any conference that will receive it — NFPA, ICC or IEEE (or even ASHRAE) will be available for review at the link below:
Toward Performance-Based Building Premise Feeder Design
NFPA 110 Definitions of Public Utility v. Merchant Utility
NFPA 72 “Definition of Dormitory Suite” and related proposals
Buildings:
Renovation economics, Smart contracts in electrical construction. UMich leadership in aluminum wiring statements in the NEC should be used to reduce wiring costs.
Copper can’t be mined fast enough to electrify the United States
Daleep asked Mike to do a Case Study session on the NEC lighting power density change (NEC 220-14) for the IAS Annual Meeting in October. Mike agreed.
Exterior Campus & Distribution:
Illumination. Gary Fox reported that IEEE 3001.9 was endorsed as an ANSI accredited standard for illumination systems.
2024-ICPSD24-0012 PERMANENT DESIGN OF POWER SYSTEMS Parise
This paper details primary considerations in estimating the life cycle of a campus medium voltage distribution grid. Some colleges and universities are selling their entire power grid to private companies. Mike has been following these transactions but cannot do it alone.
Variable Architecture Multi-Island Microgrids
District energy:
Generator stator winding failures and implications upon insurance premiums. David Shipp and Sergio Panetta. Mike suggests more coverage of retro-fit and lapsed life cycle technicals for insurance companies setting premiums.
Reliability:
Bob Arno’s leadership in updating the Gold Book.
Mike will expand the sample set in Table 10-35, page 293 from the <75 data points in the 1975 survey to >1000 data points. Bob will set up meeting with Peyton at US Army Corps of Engineers.
Reliability of merchant utility distribution systems remains pretty much a local matter. The 2023 Edition of the NESC shows modest improvement in the vocabulary of reliability concepts. For the 2028 Edition Mike submitted several proposals to at least reference IEEE titles in the distribution reliability domain. It seems odd (at least to Mike) that the NESC committees do not even reference IEEE technical literature such as Bob’s Gold Book which has been active for decades. Mike will continue to propose changes in other standards catalogs — such as ASTM, ASHRAE and ICC — which may be more responsive to best practice assertions. Ultimately, improvements will require state public utility commission regulations — and we support increases in tariffs so that utilities can afford these improvements.
Mike needs help from IEEE Piscataway on standard WordPress theme limitations for the data collection platform.
Mike will update the campus power outage database.
Healthcare:
Giuseppe Parise’s recent work in Italian power grid to its hospitals, given its elevated earthquake risk. Mike’s review of Giuseppe’s paper:
Harvard Business School: Journal of Healthcare Management Standards
Mike and David Shipp will prepare a position paper for the Harvard Healthcare Management Journal on reliability advantages of impedance grounding for the larger systems.
The Internet of Bodies
Forensics:
Giuseppe’s session was noteworthy for illuminating the similarity and differences between the Italian and US legal system in handling electrotechnology issues.
Mike will restock the committee’s library of lawsuits transactions.
Ports:
Giuseppe updates on the energy and security issues of international ports. Mike limits his time in this committee even though the State of Michigan has the most fresh water international ports in the world.
A PROPOSED GUIDE FOR THE ENERGY PLAN AND ELECTRICAL INFRASTRUCTURE OF A PORT
Other:
Proposals to the 2028 National Electrical Safety Code: Accepted Best Practice, exterior switchgear guarding, scope expansion into ICC and ASHRAE catalog,
Apparently both the Dot Standards and the Color Books will continue parallel development. Only the Gold Book is being updated; led by Bob Arno. Mike admitted confusion but reminded everyone that any references to IEEE best practice literature in the NFPA catalog, was installed Mike himself (who would like some backup help)
Papers in Process:
Impedance Grounding Papers 1 and 2 with David Shipp. Previous Discussion:
https://ieeetv.ieee.org/channels/ieee-region-events/uc-berkeley-s-medium-voltage-grounding-system
Over Coffee and Beers:
Mike assured Christel Hunter (General Cable) that his proposals for reducing the 180 VA per-outlet requirements, and the performance-base design allowance for building interior feeders do not violate the results of the Neher-McGrath calculation used for conductor sizing. All insulation and conducting material thermal limits are unaffected.
Other informal discussions centered on the rising cost of copper wiring and the implications for the global electrotechnical transformation involving the build out of quantum computing and autonomous vehicles. Few expressed optimism that government ambitions for the same could be met in any practical way.
Are students avoiding use of Chat GPT for energy conservation reasons? Mike will be breaking out this topic for a dedicated standards inquiry session:
Workspace IEEE 1366: Guide for Electric Power Distribution Reliability Indices
Largest U.S. Electric Utility Companies Ranked by Generation Capacity For IEEE 493 update we seek outage data from the 100 largest campus power system experts.
The Goose that Laid the Golden Egg
Cornell Cooperative Extension: Click image for roast goose recipe
Grounding, Bonding, Earthing and all that
National Electrical Code (NFPA 70): Article 250 Grounding & Bonding
2026 Code Panel 5: Transcript of Proposed Changes
Electrical grounding is vital for safety and system protection. It provides a path for excess electrical current to safely dissipate into the earth, reducing the risk of electric shock, fire, and equipment damage. Grounding stabilizes voltage levels, ensuring the proper operation of electrical systems and devices. It also protects against electrical surges and lightning strikes by diverting harmful currents away from sensitive components. Overall, grounding enhances the safety, reliability, and performance of electrical installations, making it a fundamental practice in electrical engineering and construction.
In other words, without grounding, electric energy does no useful work. Today we review the grounding principles for exterior lightning protection and building interior telecommunication and audio-visual systems. Use the login credentials at the upper right our home page.
“Railroad Sunset” | Edward Hopper
Grounding protects buildings from lightning by providing a safe path for the immense electrical energy of a lightning strike to travel into the earth, thereby minimizing damage. Here’s how it works:
- Lightning Rods: Metal rods placed on top of buildings intercept lightning strikes. These rods are connected to a network of conductors.
- Conductors: These metal cables or strips carry the electrical charge from the lightning rod to the ground.
- Grounding System: The conductors are connected to grounding rods buried deep in the earth, dispersing the electrical charge safely into the ground.
This system prevents lightning from passing through the building’s structure, reducing the risk of fire, structural damage, and electrical hazards.
“Rain in Charleston” 1951 Thomas Fransioli
Grounding in telecommunication systems is crucial for ensuring safety and operational reliability. Here’s how it works:
- Surge Protection: Grounding helps protect telecommunication equipment from voltage surges caused by lightning strikes, power line faults, or switching operations. By providing a direct path to the earth, grounding allows excess electrical energy to be safely dissipated, preventing damage to sensitive equipment.
- Electromagnetic Interference (EMI) Reduction: Proper grounding minimizes EMI, which can disrupt communication signals. By creating a common reference point for electrical potentials, grounding reduces noise and interference, ensuring clearer and more reliable signal transmission.
- Safety: Grounding protects personnel from electrical shocks by ensuring that any fault currents are directed away from equipment and safely into the ground. This is particularly important in environments with high-power transmission equipment.
- System Stability: Grounding stabilizes voltage levels within the system, preventing fluctuations that could cause equipment malfunctions or failures. This stability is crucial for maintaining consistent and reliable telecommunications services.
Overall, grounding enhances the safety, performance, and reliability of telecommunication systems by managing electrical faults, reducing interference, and protecting both equipment and personnel.
“Telegraph Poles with Buildings” | Joseph Stella (1917)
Grounding in audio systems is essential for ensuring high-quality sound output and preventing various types of electrical noise and interference. Here’s how it works:
- Noise Reduction: Proper grounding minimizes hums and buzzes often caused by ground loops, which occur when different pieces of equipment are grounded at different points. By ensuring a common ground point, the potential differences that cause these loops are eliminated, leading to cleaner audio signals.
- Shielding: Grounding provides a reference point for the shielding in audio cables, which helps to block external electromagnetic interference (EMI) and radio frequency interference (RFI). This shielding prevents unwanted noise from being introduced into the audio signal.
- Safety: Grounding protects both the equipment and users from electrical shocks. In the event of a fault, the grounding system directs the fault current safely to the earth, reducing the risk of electric shock and equipment damage.
- Signal Integrity: By maintaining a consistent ground potential, grounding helps preserve the integrity of audio signals. This ensures that the signals are transmitted and received accurately without degradation, resulting in better sound quality.
- Equipment Protection: Proper grounding can protect sensitive audio equipment from power surges and static discharge, extending the lifespan and reliability of the components.
Overall, grounding is a fundamental practice in audio systems to ensure high-quality sound, protect equipment, and maintain safety for users.
Related:
History of grounding/earthing practices in the united states
New update alert! The 2022 update to the Trademark Assignment Dataset is now available online. Find 1.29 million trademark assignments, involving 2.28 million unique trademark properties issued by the USPTO between March 1952 and January 2023: https://t.co/njrDAbSpwB pic.twitter.com/GkAXrHoQ9T
— USPTO (@uspto) July 13, 2023
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