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Wires

Ampere current flows through copper or aluminum conductor due to the movement of free electrons in response to an applied electric field of varying voltages.   Each copper or aluminum contributes one free electron to the electron sea, creating a vast reservoir of mobile charge carriers. When a potential difference (voltage) is applied across the ends of the conductor, an electric field is established within the conductor. This field exerts a force on the free electrons, causing them to move in the direction of the electric field.  The resulting current flow can be transformed into different forms depending on the nature of the device.

Heating: When current flows through a resistor, it encounters resistance, which causes the resistor to heat up. This is the principle behind electric heaters, toasters, and incandescent light bulbs.

Mechanical Work: Current flowing through an electric motor creates a magnetic field, which interacts with the magnetic field of the motor’s permanent magnets or electromagnets. This interaction generates a mechanical force, causing the motor to rotate. Thus, electrical energy is converted into mechanical energy; including sound.

Light: In an incandescent light bulb, a filament heats up ( a quantum phenomena) due to the current passing through it. This is an example of electrical energy being converted into light energy; including the chemical energy through light emitting diodes

Today we dwell on how conductors are specified and installed in building premise wiring systems primarily; with some attention to paths designed to carry current flowing through unwanted paths (ground faults, phase imbalance, etc).   In the time we have we will review the present state of the best practice literature developed by the organizations listed below:

International Electrotechnical Commission

60304 Low voltage installations: Protection against electric shock

Institute of Electrical and Electronic Engineers

National Electrical Safety Code

Insulated Cable Engineers Association

International Association of Electrical Inspectors

National Fire Protection Association

National Electrical Code

Code Making Panel 6

Transcript of CMP-6 Proposals for 2026 NEC

Other organizations such as the National Electrical Manufacturers Association, ASTM International, Underwriter Laboratories, also set product and installation standards.  Data center wiring; fiber-optic and low-voltage control wiring is covered in other colloquia (e.g. Infotech and Security) and coordinated with the IEEE Education & Healthcare Facilities Committee.

Use the login credentials at the upper right of our home page.


Related:

2017 National Electrical Code § 110.5

Neher-McGrath Calculation: Cable Calculation ampacity and Thermal Analysis

ETAP: Cabling Sizing – Cable Thermal Analysis

 

System Aspects of Electrical Energy

Impedance Grounding for Electric Grid Surviability

Electric Power Availability: Cold Weather Preparedness

Architecture of power systems: Special cases

Outdoor Deicing & Snow Melting

Campus Outdoor Lighting

High Voltage Electric Service

Campus Bulk Electrical Distribution

Qualification Standard for Power Plant Operators

EPRI is an independent, nonprofit organization that is primarily funded by its member utilities. These member utilities are typically electric power companies, and they contribute financially to EPRI to support its research and development activities.

While EPRI is not directly funded by the government, it does collaborate with various government agencies on research projects and receives funding for specific initiatives through government grants and contracts. Additionally, some of EPRI’s research and development efforts align with government priorities in areas such as renewable energy, environmental sustainability, and grid modernization.

Qualification Standard for Power Plant Operators

EPRI 2024 Research Portfolio: Building on Success to Drive Progress

Electrical inspectors (See NFPA 1078) typically do not have jurisdiction over electrical power plants. Electrical power plants, especially large-scale utility power plants, are subject to much more stringent regulations and oversight than regular electrical installations. The responsibility for inspecting and ensuring the safety and compliance of power plants falls under various government agencies and organizations.

In the United States, for example, power plants are subject to federal regulations set forth by the U.S. Nuclear Regulatory Commission (NRC) for nuclear power plants or the U.S. Environmental Protection Agency (EPA) for fossil fuel power plants. Additionally, state regulatory agencies and utility commissions may have their own specific requirements and oversight for power plants within their jurisdictions.

Power plants typically undergo rigorous inspections and audits to ensure compliance with safety, environmental, and operational standards. These inspections are conducted by specialized teams of engineers, experts, and representatives from relevant regulatory bodies and utilities.

While electrical inspectors may not have jurisdiction over power plants, they play a crucial role in inspecting and ensuring the safety of electrical installations in other settings, such as smaller power generation facilities (i.e. district energy plants) that are not exempted by self-assessment charters granted to many large university power plants.

Gallery: School, College & University Electric Systems

 

Farm Electrical Power

ACTION ITEMS:

Article 547: Agricultural Buildings

Public Input with Responses from CMP-7 (Start at PDF Page 187)

Public Input with Responses from CMP-2 Article 220 Part V: Farm Load Calculations (Start at PDF Page 28)

Related: National Electrical Safety Code (Higher Voltage Distribution Wiring from Merchant Utility to Off-Campus Agricultural Outbuildings)

Sunday, Animal, Farm, Agri august

Many land grant colleges and universities are stewards of agricultural facilities that require reliable electrical power that is safe and sustainable for livestock and animal habitat for sporting.

FREE ACCESS: 2023 National Electrical Code

The premise wiring rules for hazardous university owned buildings have been relatively stable.  Electrical professionals are guided by:

  1. Farm Load Calculations of Part V of Article 220,
  2. Corrosion mitigation with appropriate specification of power chain wiring
  3. Stray voltage and the equipotential plane
  4. Interactivity with regulated utility power sources.

Public response to the First Draft of the 2026 National Electrical Code will be received until August 28, 2024.  We coordinate our approach to the entire NFPA electrical suite with the IEEE Education & Healthcare Facilities Committee which meets 4 times monthly.  We typically refer to previous transcripts of technical committee actions to inform any changes (improvements) that we propose, if any.

2026 National Electrical Code Workspace

We maintain this issue on the standing agenda of our Power and Nourriture (Food) colloquia.  Feel free to join us with the login credentials at the upper right of our home page.


More:

2028 National Electrical Safety Code

Stray Voltage: Sources and Solutions

University of Nebraska: G87-845 Electrical Systems for Agricultural Buildings (Recommended Practices)

Cornell University Agricultural Safety and Health Program

Mike Holt

Fred Hartwell

National Safety Council  (22 deaths by electrocution on farms per 100,000 in 2017)

National Agricultural  Safety Database

 

Electrical Safety in Academic Laboratories

Nikola Tesla, with his equipment / Credit: Wellcome Library, London

We collaborate closely with the IEEE Education & Healthcare Facilities Committee which meets 4 times monthly in European and American time zones.  Risk managers, electrical safety inspectors, facility managers and others are welcomed to click into those teleconferences also.  We expect that concepts and recommendations this paper will find their way into future revisions of US and international electrical safety codes and standards.  There is nothing stopping education facility managers from applying the findings immediately.

College of Engineering and Technology, Bhubaneswar India


Electrical Safety of Academic Laboratories | 2019-PSEC-0204

Presented at the 55th IEEE Industrial Applications Society I&CPS Technical Conference | Calgary, Alberta Canada | May 6-9, 2019

Ω

Rodolfo Araneo, University of Rome “La Sapienza” | rodolfo.araneo@ieee.org

Payman Dehghanian, George Washington University | payman@gwu.edu

Massimo Mitolo, Irvine Valley College | mitolo@ieee.org

 

Abstract. Academic laboratories should be a safe environment in which one can teach, learn, and conduct research. Sharing a common principle, the prevention of potential accidents and imminent injuries is a fundamental goal of laboratory environments. In addition, academic laboratories are attributed the exceptional responsibility to instill in students the culture of the safety, the basis of risk assessment, and of the exemplification of the prudent practice around energized objects.  Undergraduate laboratory assignments may normally be framed based upon the repetition of established experiments and procedures, whereas, academic research laboratories may involve new methodologies and/or apparatus, for which the hazards may not be completely known to the faculty and student researchers. Yet, the academic laboratory should be an environment free of electrical hazards for both routine experiments and research endeavors, and faculty should offer practical inputs and safety-driven insights to academic administration to achieve such a paramount objective. In this paper, the authors discuss the challenges to the electrical safety in modern academic laboratories, where users may be exposed to harmful touch voltages.

I. INTRODUCTION

A. Electricity and Human Vulnerabilities

B. Electrical Hazards in Academic Laboratories

II. ELECTRICAL SEPARATION

III. SAFETY IN ACADEMIC LABORATORIES WITH VARIABLE FREQUENCY DRIVES

IV. ELECTRICAL SAFETY IN ACADEMIC LIGHTING LABORATORIES

V. ACADEMIC RESEARCH LABORATORIES

A. Basic Rules of Engagement

B. Unidirectional Impulse Currents

VI. HAZARDS IN LABORATORIES DUE TO ELECTROMAGNETIC FIELD EXPOSURE

VII. WARNING SIGNS AND PSYCHOLOGICAL PERCEPTION OF DANGER

VIII. CONCLUSION

Safety is the most important practice in an academic laboratory as “safety and productivity are on the same team”.  Electrical measurement and electrically-powered equipment of various brands and models are common in both teaching and research laboratories, highlighting the need to maintaining them continuously in an electrically-safe status.  Annual reports on the occurrence of electrical hazards (i.e. shocks and injuries) in academic laboratory environments primarily discover the (i) lack of knowledge on using the electrical equipment, (ii) careless use of the energized electric facilities, and (iii) faulty electrical equipment or cords. The above does call for the establishment of safety-driven codes, instructions, and trainings for the academic personnel working with or near such devices for teaching, learning, experiments, and research. This paper provided background information on the concept of electrical safety in the academic laboratories, presented the safety challenges of modern academic laboratories, and offered solutions on how enhance the lab environment and research personnel safety awareness to avoid and control electrical hazards.

Issue: [19-129]

Category: Electrical, Facility Asset Management, Fire Safety, International

Colleagues: Mike Anthony, Rodolfo Araneo, Payman Dehghanian, Jim Harvey, Massimo Mitolo, Joe Tedesco

Related IEEE Research:

Laboratory Safety and Ethics

Strengthening and Upgrading of Laboratory Safety Management Based on Computer Risk Identification

Study on the Operators’ Attention of Different Areas in University Laboratories Based on Eye Movement Tracking Technology

Critical Study on the feasiblity of Smart Laboratory Coats

Design of Safety Monitoring System for Electrical Laboratory in Colleges and Universities under the Background of Informatization

Clean Environment Tools Design For Smart Campus Laboratory Through a Global Pandemic

Design of Laboratory Fire Safety Monitoring System


Water and Electricity

Supporting swimming pools with electricity involves various essential functions such as filtration, heating, lighting, and sanitation. Ensuring safety and energy efficiency is crucial, and pool owners can take steps to minimize electricity costs and environmental impact. Key points:

Filtration and Circulation: Swimming pools rely on electric pumps to circulate water through filters, removing debris and maintaining water quality.

Heating: Electric heaters or heat pumps are used to regulate water temperature for comfort, especially in colder seasons.

Lighting: Underwater and pool area lighting enhance safety and aesthetics, typically powered by electricity.

Chlorination and Sanitation: Electric chlorinators or ozone generators help maintain water cleanliness and hygiene.

Automation: Electric control systems enable pool owners to manage filtration, heating, and lighting remotely for convenience and energy efficiency.

Energy Efficiency: Pool owners can invest in energy-efficient equipment, like variable-speed pumps and LED lighting, to reduce electricity consumption and operating costs.

Operations and Maintenance: Regular electrical maintenance ensures safe and reliable pool operation, preventing electrical faults and hazards.  The electricity cost for pool operation can be significant, so pool owners should consider energy-efficient practices and equipment to reduce expenses.

https://standardsmichigan.com/australia/

Education communities present one of the largest installed bases of artificially created bodies of water; the most abundance resource on earth.  These bodies vary in size, purpose, and design but are all created by human intervention to serve specific needs, whether practical, recreational, or aesthetic.  Safe and sustainable management of them in the Unite States are informed by best practice found in Article 680 of the National Electrical Code with scope statement below:

Construction and installation of electrical wiring for, and equipment in or adjacent to, all swimming, wading, therapeutic, and decorative pools; fountains; hot tubs; spas; and hydromassage bathtubs, whether permanently installed or storable, and to metallic auxiliary equipment, such as pumps, filters, and similar equipment.

Consultation on the First Draft of the 2026 revision closes August 24, 2024.

2026 National Electrical Code Workspace

Related:

Pool, Fountain, Agriculture & Water Infrastructure Electrical Safety

https://www.si.com/extra-mustard/2016/08/15/michael-phelps-poses-bottom-university-michigan-pool-2005

Marina & Boatyard Electrical Safety

Infotech 400

“Though I am not a prophet, nor the son of a prophet,

yet I venture to predict that before the end of the century

many a person who now reads this page will receive a flash of intelligence

from some other mortal thousands of miles distant,”

“The Telegraph and the Press”

—  Charles F. Briggs (New York Herald, 1844)

(c) The New Yorker

 

Today we break down the literature for building, maintaining and supporting the computing infrastructure of education settlements.  We use the term “infotech” gingerly to explain action for a  broad span of technologies that encompass enterprise servers and software, wireless and wired networks, campus phone networks, and desktop computers that provide administrative services and career tech video production.   The private sector has moved at light speed to respond to the circumstances of the pandemic; so have vertical incumbents evolving their business models to seek conformance revenue.  Starting 2023 we break down the topic accordingly:

Infotech 200:  Wired and wireless infrastructure for education and administration related to teaching sciences and supporting fine and lively arts

Infotech 400:  Physical system middleware for research facilities; data center location, power supply, cooling systems, fire suppression, security, monitoring and management.

The literature radiates continually by consortia, open-source, or ad hoc standards-setting domains rather than the private standards system administered by global and standards setting bodies; to wit:

International:

IEC (EN 50600), IET, ISO, ITU

Freely Available ICT Standards

IEEE

Education & Healthcare Facility Electrotechnology Committee

United States:

ASHRAE

Energy Standard for Data Centers

ATIS

BICSI

Data Center Operations and Maintenance Best Practices

INCITS, NFPA, NIST, TIA (942)

Everywhere else:

3GPP & 3GPP2,  Apache Software Foundation,  ISTE,  OneM2M,  Uptime Institute

The ICT domain is huge, replacing physical libraries.  The foregoing is a highly curated sample.

We continue to include teaching and learning media standards on our colloquia however it is likely that will break up this topic into at least two related colloquia as 2022 proceeds; with primary focus on the design, construction and maintenance of the physical ICT infrastructure.  Much depends upon the interest of our clients, colleagues and other stakeholders.  We collaborate closely with the IEEE Education and Healthcare Electrotechnology Committee.

Use the login credentials at the upper right of our home page.

"One day ladies will take their computers for walks in the park and tell each other, "My little computer said such a funny thing this morning" - Alan Turing

A Study of Children’s Password Practices

Standing Agenda / Infotech 200

Readings:

“The Proposed Union of the Telegraph and Postal Systems” 1869 | Western Union Telegraph Company

“Systems of Logic Based on Ordinals” 1938 | Alan Turing, Princeton University

 

 

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


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