Tag Archives: M1

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Incredible snow removal

Outdoor Deicing & Snow Melting

Electrical Safety

“Snow at Argenteuil” | Claude Monet (1875)

Today our focus turns to outdoor electric deicing and snow melting wiring systems identified as suitable for the environment and installed in accordance with the manufacturer’s instructions.  They work silently to keep snow load from caving in roofs and icicles falling from gutters onto pedestrian pathways.

While the voltage and ampere requirement of the product itself is a known characteristic, the characteristic 0f the wiring pathway — voltage, ampere, grounding, short circuit, disconnect and control — is relatively more complicated and worthy of our attention.   Articles 426-427 of the National Electrical Code is the relevant part of the NEC

Free Access 2023 National Electrical Code

Insight into the ideas running through technical committee deliberations is provided by a review of Panel 17 transcripts:

2023 NEC Panel 17 Public Input Report (633 pages)

2023 NEC Panel 17 Public Comment Report (190 pages)

We hold Articles 427 in the middle of our priority ranking for the 2023 NEC.   We find that the more difficult issues for this technology is the determination of which trade specifies these systems — architectural, electrical, or mechanical; covered in previous posts.   Instead, most of our time will be spent getting IEEE consensus products in step with it, specifically ANSI/IEEE 515 and IEEE 844/CSA 293.

Comments on the Second Draft of the 2026 NEC will be received until April 18th.

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We collaborate with the IEEE Education & Healthcare Facility Committee which meets online 4 times per month in European and American time zones.  Since a great deal of the technical basis for the NEC originates with the IEEE we will also collaborate with IEEE Standards Coordinating Committee 18 whose members are charged by the IEEE Standards Association to coordinate NFPA and IEEE consensus products.

Issue: [19-151]

Category: Electrical, Energy

Colleagues: Mike Anthony, Jim Harvey, Kane Howard, Jose Meijer


LEARN MORE:

IEEE Standard for the Testing, Design, Installation, and Maintenance of Electrical Resistance Heat Tracing for Commercial Applications

844.2/CSA C293.2-2017 – IEEE/CSA Standard for Skin Effect Trace Heating of Pipelines, Vessels, Equipment, and Structures–Application Guide for Design, Installation, Testing, Commissioning, and Maintenance

 

Winter Sport

 

“Indians Playing Lacrosse on the Ice” 1934 Yale University Art Gallery

The literature for designing, building and maintaining sport and recreation related spaces in education settlements cuts across so many safety and sustainability risk aggregations that, starting 2024, we begin breaking up the topic according to four seasons; mindful that not all seasons are present in all settlements at all times of the year.

Join us today when we sort through live public consultations on proposed changes to the most frequently referenced titles.


Hockey

Ice Hockey Arena Lighting


Figure Skating


Rifle


Recreation

Darts

Ice Fishing

Curling

Billiards


Swimming

Coetzenburg Swimming Pool


Related:

Readings / Sport, Culture & Society

Maths and Sport

National Center for Spectator Sports Safety and Security

Virtual reality technology in evacuation simulation of sport stadiums

 

Capra hircus

Goat farming is an important source of livelihood for many small-scale farmers in developing countries, particularly in regions such as sub-Saharan Africa and South Asia. The FAO estimates that more than 90% of the world’s goats are raised in developing countries, where they provide a critical source of food and income for rural communities.

Overall, the global goat farming industry continues to grow, driven by increasing demand for goat meat and milk products, as well as the potential for sustainable agriculture practices.

Advantages:

Low start-up costs: Goat farming requires relatively low start-up costs compared to other types of agriculture. Goats are small animals that do not require much space, and they can be raised in a variety of environments, from small backyard farms to large commercial operations.

High productivity: Goats are known for their high reproductive rate, which allows farmers to increase their herd size quickly. They are also efficient at converting food into milk and meat, making them a profitable investment for farmers.

Multiple uses: Goats can be raised for meat, milk, and fiber, making them a versatile livestock option. Additionally, their manure can be used as fertilizer, and they can be used for weed control on farms and other properties.

Sustainable farming: Goat farming can be a sustainable agricultural practice, as goats do not require large amounts of feed or water, and they can be raised on marginal lands that are unsuitable for other types of agriculture.

Disadvantages:

Predation: Goats are vulnerable to predation by coyotes, dogs, and other predators, which can be a significant problem for farmers, especially in rural areas.

Disease susceptibility: Goats are susceptible to a variety of diseases, some of which can be difficult to diagnose and treat. Additionally, some diseases can be transmitted to humans, making it important for farmers to take precautions when handling their animals.

Market volatility: The demand for goat products can be volatile, and prices can fluctuate significantly based on supply and demand. This can make it challenging for farmers to predict their income and manage their finances.

Labor intensive: Goat farming can be labor-intensive, especially during kidding and milking seasons. This can make it difficult for farmers to manage their workload, especially if they have a large herd.

Girl with a Goat | Benton County Arkansas

 

Animal Safety

Wild Swimming

 

INTERVIEW: Student Ellie Ford on founding the University’s first cold water swimming group

 

 

 

 

 

 

 

 

 

 

 

 

 

 

“Port Meadow is absolutely beautiful and a wonderful place to swim. We often swim in a different spot from other open water swimming groups in order to create a more relaxed environment – especially for our beginners. We do special beginners swims on Saturdays, to ease new members into the practise slowly and very carefully.

Safety is paramount, so I’ll walk them in to the water and they can immerse themselves as much as they want. We never allow anyone to jump or dive into cold water – the shock can cause a swimmer to gulp for air and subsequently ingest water; it’s always a gentle process.” — Ellie

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sex Difference in Female and Male Ice Swimmers

Ice Swimming

Ice Hockey Arena Lighting

National Collegiate Athletic Association: August 2022 IRS Form 900 Tax Filing

After athletic arena life safety obligations are met (governed legally by NFPA 70, NFPA 101, NFPA 110,  the International Building Code and possibly other state adaptations of those consensus documents incorporated by reference into public safety law) business objective standards may come into play.For almost all athletic facilities,  the consensus documents of the Illumination Engineering Society[1], the Institute of Electrical and Electronic Engineers[2][3] provide the first principles for life safety.  For business purposes, the documents distributed by the National Collegiate Athletic Association inform the standard of care for individual athletic arenas so that swiftly moving media production companies have some consistency in power sources and illumination as they move from site to site.  Sometimes concepts to meet both life safety and business objectives merge.

 

During hockey season the document linked below provides information to illumination designers and facility managers:

NCAA Best Lighting Practices

Athletic programs are a significant source of revenue and form a large part of the foundation of the brand identity of most educational institutions in the United States.   We focus primarily upon the technology standards that govern the safety, performance and sustainability of these enterprises.  We collaborate very closely with the IEEE Education & Healthcare Facilities Committee where subject matter experts in electrical power systems meet 4 times each month in the Americas and Europe.

See our CALENDAR for our next colloquium on Sport facility codes and standards  We typically walk through the safety and sustainability concepts in play; identify commenting opportunities; and find user-interest “champions” on the technical committees who have a similar goal in lowering #TotalCostofOwnership.

Issue: [15-138]*

Category: Electrical, Architectural, Arts & Entertainment Facilities, Athletics

Colleagues: Mike Anthony, Jim Harvey, Jack Janveja, Jose Meijer, Scott Gibbs


LEARN MORE:

[1] Illumination Engineering Handbook

[2] IEEE 3001.9 Recommended Practice for Design of Power Systems for Supplying Lighting Systems for Commercial & Industrial Facilities

[3] IEEE 3006.1 Power System Reliability

 

* Issue numbering before 2016 dates back to the original University of Michigan codes and standards advocacy enterprise 

Banished Words 2024

“He who does not know foreign languages knows nothing of his own.”

– Johann Wolfgang von Goethe

Lake Superior State University Michigan

 

Standards January

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