Tag Archives: M1

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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

 

One Hundred Days of School

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 Swimming

January 1st is Polar Bear Plunge Day in the Great Lakes.  It is also popular among the young in other “watery” universities around the world.

2023 St. Clair College Polar Bear Plunge

Polar Plunge at the University of Michigan

Pleasures and Hazards

Pleasures:

  1. Increased adrenaline rush: Cold water swimming can produce a surge of adrenaline in the body, which can make you feel more energized and alert.
  2. Improved mood: Cold water swimming has been associated with an increased release of endorphins, which can elevate your mood and reduce stress levels.
  3. Improved immune function: Cold water swimming has been shown to improve immune function, possibly due to the stress response induced by the cold water.
  4. Sense of accomplishment: Many people find ice swimming to be a challenging and rewarding experience, providing a sense of accomplishment and pride.
  5. Social bonding: Ice swimming can be a social activity, with groups of people coming together to share the experience and support each other.

Hazards:

  1. Hypothermia: Prolonged exposure to cold water can cause hypothermia, which can be life-threatening if left untreated.
  2. Cold shock response: Entering cold water can cause an involuntary gasp reflex, which can lead to drowning if it occurs while the head is underwater.
  3. Heart problems: Cold water swimming can put a strain on the heart and increase the risk of heart attack or stroke in people with underlying cardiovascular disease.
  4. Frostbite: Exposed skin can become frostbitten in cold water, particularly in extremities such as the fingers and toes.
  5. Injury from slipping or falling: Ice swimming can be hazardous if proper safety precautions are not taken, such as wearing appropriate footwear and using a rope or ladder to enter and exit the water.

 

College Polar Bear Plunges

2023 St. Clair College Polar Bear Plunge

Polar Plunge at the University of Michigan

Incredible snow removal

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 | Language

I-Codes

Hephaestus: God of Fire, Metalwork, and Building

Today we survey the broad sweep of the International Code Council catalog of best practice titles; incorporated by reference into public safety regulations in most of the United States.  This session will be a “survey” and “organizational” session when we limit detail and simply identify priority titles and the technical specifics in play over the next twelve months.

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

2024/2025/2026 International Code Council Code Development Schedule

Complete Monographs (To be posted soon)

International Green Construction Code: Definitions

International Fire Code

Storm Shelters

Hammurabi

International Energy Conservation Code

Sport Occupancies

International Mechanical Code

Higher Education Laboratories

Interior Finishes

Morning Shower

International Building Code | Electrical

Day Care

Stadium & Arena Structural Engineering

Off-Site Construction

K-TAG Matrix for Healthcare Facilities

 

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