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Alternating Current Generators
Today we scan the status of the literature governing the specification, installation, operation and maintenance of the larger commercial-scale generators that provide backup power for emergency egress, hospitals, data centers, critical operations and the like. These are three phase units – larger than residential generators (in kilowatts terms) but smaller than regulated utility generators. This topic is further breakdown of coverage in previous sessions, spanning decades. Use the login credentials at the upper right of our home page.
- IEC 60034 – Rotating Electrical Machines (General requirements for electric machines, including generators).
- ISO 8528: Reciprocating Internal Combustion Engine Driven Alternating Current Generating Sets
- NEMA MG 10012-2023: Safety Standard for Construction and Guide for Selection, Installation, and Use of Electric Motors and Generators
- ANSI C84.1 – Voltage ratings for electric power systems and equipment.
- UL 2200: Standard for Stationary Engine Generator Assemblies
- UL 142 – Safety standard for fuel tanks used in generator installations.
- IEEE 446: Recommended Practice for Emergency and Standby Power Systems for Industrial and Commercial Applications
- ASCE 24: Flood Resistant Design and Construction
- ASME B31.9 – Building Services Piping (applies to piping for fuel and exhaust systems in commercial buildings).
- NFPA 37: Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines
- NFPA 70: National Electrical Code
- NFPA 110 & 111: Standard for emergency and standby power systems.
- ANSI/NETA Acceptance Testing Specifications
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EPA Regulations (e.g., 40 CFR Part 60) | EPA Tier Regulations – Emission standards for diesel and gas-powered generators in the U.S.
- OSHA 29 CFR 1910 – Occupational safety and health standards for electrical systems, including generators.
Related:
Schools & Universities Utilize Stationary & Portable Generators for Backup Power
Emergency and Standby Power Systems
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 input for the 2028 Revision will be received until June 4, 2025.
Electrical building, World’s Columbian Exposition, Chicago (1892)
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
More
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:
Copper can’t be mined fast enough to electrify the United States
Edison electric vehicle | National Park Service, US Department of the Interior
Bridge Michigan: Researchers say a copper shortage could imperil Michigan’s EV future
Copper can’t be mined fast enough to electrify the US
Copper cannot be mined quickly enough to keep up with current U.S. policy guidelines to transition the country’s electricity and vehicle infrastructure to renewable energy, according to a University of Michigan study.
The… pic.twitter.com/wm2qNrlAZB
— Michigan News (@UMichiganNews) May 15, 2024
Related:
Cow to Cone
What makes #icecream so irresistible? 🍦😋🍦It’s the fascinating #chemistry at play, balancing fat globules, air & ice crystals to perfection – basically, ice cream isn’t just a treat, it’s a chemistry masterpiece!😉Check out this cool visual by @compoundchem @ndbrning pic.twitter.com/1qKLQaBF8k
— Max Planck Society (@maxplanckpress) August 16, 2024
Vintage icecream scoops.
[📹 dustyoldstuff]pic.twitter.com/3oKRj92ST6
— Massimo (@Rainmaker1973) August 18, 2024
Krían í vanda
UNESCO mun mæla með námskeiði í umhverfis- og auðlindafræði við Háskóla Íslands um hafið og sjálfbærni í tengslum við Áratug hafsins á vegum stofnunarinnar.
👇https://t.co/SgFdRNVgxT pic.twitter.com/WZXTH5YMDZ— Háskóli Íslands (@Haskoli_Islands) October 23, 2024
🧸🩹Fyrir um 14 árum kom Guðrún Edda Min Harðardóttir með bangsann sinn til skoðunar á Bangsaspítala læknanema í HÍ. Nú um helgina var hún hinum megin við borðið og hlúði að fársjúkum böngsum og dúkkum á spítalanum sem fyrsta árs læknanemi.https://t.co/wZLPthMi2K pic.twitter.com/aYl1YrE1pb
— Háskóli Íslands (@Haskoli_Islands) September 16, 2024
Finian’s Rainbow
“Finian’s Rainbow” is a musical (written by E.Y. Harburg – University of Michigan 1918) that tells the story of an Irishman named Finian McLonergan who comes to the United States with his daughter Sharon to bury a pot of gold stolen from a leprechaun. Finian believes that if he buries the gold in the soil of Fort Knox, it will grow and multiply, allowing him to live a life of luxury.
However, the town they settle in, Rainbow Valley, is owned by a racist senator named Billboard Rawkins, who wants to evict the sharecroppers living on the land. With the help of a local activist named Woody, Sharon and the sharecroppers team up to stop Rawkins’ eviction plans.
Meanwhile, Og, the leprechaun whose gold Finian stole, comes to America to get his gold back. Og meets and falls in love with Susan, the mute daughter of the sharecropper Woody, and realizes that he wants to stay in America with her.
The story deals with themes of racism, prejudice, and the American dream, and features memorable like “Old Devil Moon,” “How Are Things in Glocca Morra?” and “If This Isn’t Love.”
“All Glory, Laud and honour”
“All Glory, Laud and Honour” is a hymn written by Theodulf of Orléans around 820 AD, originally in Latin as “Gloria, laus et honor.” Composed during his imprisonment in Angers, France, it was meant for Palm Sunday, celebrating Jesus’ triumphal entry into Jerusalem.
The hymn became part of liturgical traditions, sung during processions. Translated into English by John Mason Neale in 1854, it gained widespread use in Anglican and other churches. Its enduring melody, often paired with the text, is attributed to Melchior Teschner (1615). The hymn remains a staple in Christian worship, especially during Holy Week.
We resume our regular sung services starting with Evensong tonight here in King’s. Details of all Lent Term services available here:https://t.co/2F6WWRayl8 pic.twitter.com/Y6f07GBwFc
— King’s College Choir (@ChoirOfKingsCam) January 16, 2024
THE GLOBAL LANGUAGE FOR COLOUR
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Colours determine our lives – consciously and subconsciously. They give us direction, influence our emotions, act as a means of communication, underline individuality and give us our identity. RAL colours have existed in all areas of our lives for decades and they set the colour standards for clear global communication of colour in architecture, design, skilled trades and industry.
Enter into the three RAL colour ranges with over 2,500 clearly specified shades for professional colour design. Find out on our website about our colour collections, our analogue and digital products as well as the latest trends from the world of RAL colours.
Hexis
Ulster University Graduate Fashion Show
Style is a manner of doing or presenting things and may refer to:
- Architectural style, the features that make a building or structure historically identifiable
- Design, the process of creating something
- Fashion, a prevailing mode of clothing styles
- Style (visual arts)
- Writing style, the manner in which a writer addresses readers
- Film style
Fashion is a form of self-expression and autonomy at a particular period and place and in a specific context, of clothing, footwear, lifestyle, accessories, makeup, hairstyle, and body posture. The term implies a look defined by the fashion industry as that which is trending. Everything that is considered fashion is available and popularized by the fashion system (industry and media). Given the rise in mass production of commodities and clothing at lower prices and global reach, sustainability has become an urgent issue among politicians, brands, and consumers.
Occupational Safety and Health Administration: Textiles
♥️💙 #Hallyu #TheKoreanWave @V_and_A #fashion #korea pic.twitter.com/3fuA9Au9if
— Prof Natascha Radclyffe-Thomas 💋💙 (@fashionnatascha) November 26, 2022
Leveraging User-Provided Noisy Labels for Fashion Understanding
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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