August 5, 2021
The 2020 National Electrical Code (NEC) contains significant revisions to Article 625 Electric Vehicle Power Transfer Systems. Free access to this information is linked below:
You will need to set up a (free) account to view Article 625 or you may join our colloquium today.
Public input for the 2023 Edition of the NEC has already been received. The work of the assigned committee — Code Making Panel 12 — is linked below:
NFPA 70_A2022_NEC_P12_FD_PIReport_rev
Mighty spirited debate. Wireless charging from in-ground facilities employing magnetic resonance are noteworthy.
Technical committees meet November – January to respond. In the intervening time it is helpful break down the ideas that were in play last cycle. The links below provide the access point:
Public Comment Report Panel 12
We find a fair amount of administrative and harmonization action; fairly common in any revision cycle. We have taken an interest in a few specific concepts that track in academic research construction industry literature:
As a wiring safety installation code — with a large installer and inspection constituency — the NEC is usually the starting point for designing the power chain to electric vehicles. There is close coupling between the NEC and product conformance organizations identified by NIST as Nationally Recognized Testing Laboratories; the subject of a separate post.
After the First Draft is released June 28th public comment is receivable until August 19th.
We typically do not duplicate the work of the 10’s of thousands of National Electrical Code instructors who will be fanning out across the nation to host training sessions for electrical professionals whose license requires mandatory continuing education. That space has been a crowded space for decades. Instead we co-host “transcript reading” sessions with the IEEE Education & Healthcare Facilities Committee to sort through specifics of the 2020 NEC and to develop some of the ideas that ran through 2020 proposals but did not make it to final ballot and which we are likely to see on the docket of the 2023 NEC revision. That committee meets online 4 times monthly. We also include Article 625 on the standing agenda of our Mobility colloquium; open to everyone. See our CALENDAR for the next online meeting
Issue: [16-102]
Category: Electrical, Transportation & Parking, Energy
Colleagues: Mike Anthony, Jim Harvey
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U.S. NATIONAL ELECTRIC VEHICLE SAFETY STANDARDS SUMMIT | DETROIT, MICHIGAN 2010
The New York University Paulson Center 181 Mercer dormitory is a state-of-the-art residence hall located in the heart of Manhattan’s SoHo neighborhood. The building was designed by COOKFOX architects and completed in 2020.
The Paulson 181 Mercer dormitory is a 23-story building that houses more than 700 students in a mix of singles, doubles, triples, and quads. The building features a number of amenities designed to enhance the student living experience, including a fitness center, music practice rooms, a game room, and a rooftop terrace with stunning views of the city.
One of the most unique features of the Paulson 181 Mercer dormitory is its focus on sustainability and green design. The building is expected to achieve LEED Gold certification, which recognizes buildings that are designed and constructed to minimize their environmental impact. Some of the sustainable features of the building include a green roof, rainwater harvesting system, and energy-efficient lighting and HVAC systems.
The $1.2 billion John A. Paulson Center — which opened in January 2023 — provides all of the occupancy classes for the “university without a quad”.
*In 2005, Paulson began investing heavily in credit default swaps, which are essentially insurance contracts that pay out if a particular debt instrument defaults. He used these swaps to bet against the subprime mortgage market, which he believed was overvalued and ripe for collapse. When the housing market crashed in 2008, Paulson’s bets paid off in a big way, earning him billions of dollars in profits.
Paulson has also been involved in other successful trades, including investments in gold and banking stocks. However, his bet against the subprime mortgage market remains his most famous and lucrative trade.
Today we break down public consultation notices for literature that sets the standard of care for the safety and sustainability of student housing in K-12 prep schools, colleges and universities. We deal with off-campus housing in a separate session because it involves local safety and sustainability regulations; most of which are derived from residential housing codes and standards.
The topic cuts across many disciplines and standards setting organization bibliographies. We usually set our bearing with the following titles:
2021 International Building Code: Section 310 Residential Group R-2 + related titles such as the IFC, IMC, IPC, IECC
2021 Fire Code: Chapter 6 Classification of Occupancy + related titles such as NFPA 70B, NFPA 72 and NFPA 110
2023 National Electrical Code: Articles 210-230 + related Articles 110 and 410
ASHRAE 90.1 Energy Standard for Buildings Except Low-Rise Residential Buildings: Annex G
Like any other classification of real property the average cost for room and board for a public university student dormitory depends on several factors such as the location of the university, the type of dormitory, and the meal plan options. According to the College Board, the average cost of room and board for the 2021-2022 academic year at a public four-year in-state institution was $11,620. However, this figure can range from around $7,000 to $16,000 or more depending on the specific institution and its location. It’s important to note that this average cost only includes the basic meal plan and standard dormitory room. Students may also have additional costs for a larger or more luxurious dorm room, a premium meal plan, or other expenses such as laundry or parking fees.
According to ring Rider Levett Bucknall, a global property and construction consultancy firm, the average construction cost for a student housing facility in the United States in 2021 was around $202 per square foot. However, this figure can range from around $150 to $300 per square foot or more depending on the specific project. Life cycle cost for new facilities with tricked out net-zero gadgets is hard to come by at the moment.
Because money flows freely through this domain we examine scalable densities and the nature of money flow patterns; partially tracked by the Electronic Municipal Market Access always on the standing agenda of our Finance colloquium.
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National Institute of Standards & Technology: The Character of Residential Cooktop Fires
Deserted College Dorms Sow Trouble for $14 Billion in Muni Bonds
Here are a few pros and cons of private sector construction of university-owned student housing:
Pros:
Cons:
It’s important to note that these pros and cons may vary depending on the specific circumstances and context of each individual university and private sector partnership.
Although the 2024 Revision is substantially complete there are a number of technical and administrative issues to be resolved before the final version is released for public use. Free access to the most recent edition is linked below.
TENTATIVE – 2027 UPC/UMC CODE DEVELOPMENT TIMELINE
Report on Comments for the 2024 Uniform Plumbing Code
This paper introduced the concept of reliability theory and established a mathematical framework for analyzing system reliability in terms of lumped parameters. It defined important concepts such as coherent systems, minimal cut sets, and minimal path sets, which are still widely used in reliability engineering.
IEEE Recommended Practice for the Design of Reliable Industrial and Commercial Power Systems
“Railroad Sunset” | Edward HopperWe are tooling up to update the failure rate tables of IEEE 493 Design of Reliable Industrial and Commercial Power Systems; collaborating with project leaders but contributing to an essential part of the data design engineers use for scaling their power system designs. The project is in its early stages. We are formulating approaches about how to gather data for assemble a statistically significant data set.
Today we introduce the project which will require harvesting power reliability statistics from any and all educational settlements willing to share their data. As the links before demonstrate, we have worked in this domain for many years.
Join us with the login credentials at the upper right of our home page.
“On the Mathematical Theory of Risk and Some Problems in Distribution-Free Statistics” by Frank Proschan (1963): This paper introduced the concept of increasing failure rate (IFR) and decreasing failure rate (DFR) distributions, which are crucial in reliability modeling and analysis.
“Reliability Models for Multiple Failures in Redundant Systems” by John F. Meyer (1965): This paper addressed the problem of reliability analysis for redundant systems, which are systems with multiple components designed to provide backup in case of failure.
“Reliability of Systems in Series and in Parallel” by A. T. Bharucha-Reid (1960): This work analyzed the reliability of systems composed of components arranged in series and parallel configurations, which are fundamental building blocks of more complex systems.
“A Stochastic Model for the Reliability of Modular Software Systems” by John E. Gaffney, Jr. and Thomas A. Dueck (1980): This paper introduced one of the earliest models for software reliability, extending the concepts of reliability theory to the field of software engineering.
“Redundancy Techniques for Computing Systems” by John von Neumann (1956): This report by the pioneering computer scientist John von Neumann explored the use of redundancy techniques, such as triple modular redundancy, to improve the reliability of com
puting systems.
How does the electrical grid respond to a crisis?
If the power goes out after a thunderstorm, utility crews are on the job within hours to restore service and get the lights back on. Most electric utilities in the U.S. have a reputation for reliability and recovery from situations like this. It has been noticed as planners began thinking about increased natural disasters brought on by population migration patterns, manmade interference due to malicious cyber-attacks, and the instability brought about by adding large quantities of renewable energy.
At North Carolina State University, The Future Renewable Electric Energy Delivery and Management (FREEDOM) Systems Engineering Research Center was created through funding from the National Science Foundation in 2008 to modernize the electrical grid to accommodate sustainable energy, such as wind and solar power. The Freedom Center has been involved in developing online tools for assessing vulnerabilities to address cyber-physical security called distributed grid intelligence. The hope is that smart microgrids with sensors embedded throughout the system might be more resilient to failure and easier to bring back online and large multi-state electric grids. But the emerging smart grid, together with distributed renewable energy such as rooftop solar, presents a new set of challenges to resilience. The Smart Grid involves more distributed energy down to the home level. That kind of penetration adds a level of vulnerability to a cyber threat. Engineers will certainly have to pay attention to that as the grid gets smarter.
Sporty weather season in the United States inspires a revisit of best practice for designing, building and maintaining the systems that provide limited electricity when the primary source fails. We have been active in the development of this and related titles for decades and have presented several proposals to the technical committee. Public response on the Second Draft of the 2025 revision will be received until March 27, 2024.
FREE ACCESS to the 2022 Edition of NFPA 110 Standard for Emergency and Standby Power Systems
The scope of NFPA 110 and NFPA 111 are close coupled and summarized below:
NFPA 110 Standard for Emergency and Standby Power Systems. This standard contains requirements covering the performance of emergency and standby power systems providing an alternate source of electrical power to loads in buildings and facilities in the event that the primary power source fails.
NFPA 111 Stored Electrical Energy for Emergency and Standby Power Systems. This standard shall cover performance requirements for stored electrical energy systems providing an alternate source of electrical power in buildings and facilities in the event that the normal electrical power source fails.
FIRST DRAFT AGENDA | August 2022
Public comment on the First Draft of the 2025 Edition will be received until May 31, 2023.
We have advocated in this standard since 1996 and still use the original University of Michigan Workspace; though those workspaces must be upgraded to the new Google Sites during 2021. We provide a link to the Standards Michigan Workspace and invite you to join any of our electrical colloquia which are hosted jointly with the IEEE Education & Healthcare Facilities Committee four times per month in European and American time zones. See our CALENDAR for the next online meeting; open to everyone.
Issue: [96-04]
Category: Electrical, Risk
Contact: Mike Anthony, Robert Arno, Neal Dowling, Jim Harvey, Robert Schuerger, Mike Hiler
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ITM of Emergency Power Systems
Planning for Higher Education Journal: Revisiting the Campus Power Dilemma: A Case Study
Tom is a long-time colleague and friend so Mike happily posts his content:
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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