Drive Time Bias By Omission

  1. Home
    2. Page 88
Loading
loading...

Drive Time Bias By Omission

September 30, 2025
mike@standardsmichigan.com
No Comments

This content is accessible to paid subscribers. To view it please enter your password below or send mike@standardsmichigan.com a request for subscription details.

Collaborative Standards Development System

September 30, 2025
mike@standardsmichigan.com

No Comments

Current Quick Takes:

UL 1650, Standard for Safety for Portable Power Cable (Page 75) | Comment deadline October 26

UL 763, Standard for Safety for Motor-Operated Commercial Food Preparing Machines (Page 81) | Comment deadline October 19

UL 218, Standard for Fire Pump Controllers (Page 78) | October 19

UL’s Collaborative Standards Development System Login

Underwriters Laboratories catalog is heavy on product titles (because manufacturers can build the cost of conformance into the product and pass it on to the user) and light on system interoperability titles (our primary concern).  Many titles are US adaptations of IEC, ITU and ISO titles.  We follow a few when they are heavily referenced into the same interoperability titles such as the National Electrical Code and the International Building Code.   We refer most  — but not all — electrotechnology titles to IEEE E&H).  IEEE E&H meets 4 times monthly and is open to everyone.

Non-electrotechnology titles):

3600 Standard for Measuring and Reporting Circular Economy Aspects of Products, Sites and Organizations (December 6)

Electrotechnology titles: Workspace re-organization should be complete by end of 2022

489 Standard for Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker (January 16)

1778 Standard for Safety for Uninterruptible Power Systems (January 16)

2201 Standard for Safety for Carbon Monoxide (CO) Emission Rate of Portable Generators (December 19)

 3600 Standard for Measuring and Reporting Circular Economy Aspects of Products, Sites and Organizations (December 6)

62990 Standard for Safety for Workplace Atmospheres (October 9)
– 217 Standard for Safety for Smoke Alarms (August 28)
– 1480 Standard for Safety for Speakers for Fire Alarm and Signaling Systems, Including Accessories (November 27)
– 231-202x, Standard for Safety for Power Outlets (September 25)
268 Standard for Safety for Smoke Detectors for Fire Alarm Systems (November 13)
– 283 Standard for Central-Station Alarm Services (May 10)
– 325 Standard for Safety for Door, Drapery, Gate, Louver, and Window Operators and Systems (October 3)
– 347A Standard for Safety for Medium Voltage Power Conversion Equipment (April 3)
1004-5 Standard for Safety for Fire Pump Motors (September 12)
– 1072 Standard for Safety for Medium-Voltage Power Cables (September 11)
1998 Standard for Safety for Software in Programmable Components (November 6)
– 2251 Standard for Safety for Plugs, Receptacles, and Couplers for Electric Vehicles (October 10)

– UL 2580 Standard for Safety for Batteries for Use in Electric Vehicles (April 24)

– Standard for Photovoltaic (PV) Modules – Type Approval, Design and Safety Qualification – Retesting (national adoption with modifications of IEC 62915).  The revisions appear to be largely harmonization revisions; updating normative references.  (March 20)

– 2800 Standard for Safety for Medical Device Interoperability.  Referred to IEEE E&H (April 3)

– 347A Standard for Safety for Medium Voltage Power Conversion Equipment (April 3)

– 414 Standard for Safety for Meter Sockets (April 3)

– 347 Standard for Safety for Medium-Voltage AC Contactors, Controllers, and Control Centers (August 14)

– 1996 Standard for Safety for Electric Duct Heaters (August 21)

– 6142 Standard for Small Wind Turbine Systems (August 21)

– 8801 Standard for Safety for Photovoltaic (PV) Luminaire Systems (May 10)

– 61800 Standard for Safety for Adjustable Speed Electrical Power Drive Systems (April 24)

– 60950 Standard for Safety for Information Technology Equipment (May 9)

– 1480 Standard for Safety for Speakers for Fire Alarm and Signaling Systems, Including Accessories (July 26)

– 2200 Standard for Stationary Engine Generator Assemblies (June 19)

– 2388 Standard for Safety for Flexible Lighting Products (June 20)

2900 Standard for Safety for Software Cybersecurity for Network-Connectable Products (October 11)

Colloquy (September)

September 29, 2025
mike@standardsmichigan.com
No Comments

Open agenda; Not Too Organized. Whatever anyone wants to talk about.  We do meet once a month like this.  Use the login credentials at the upper right of our home page.

Evensong “Last Rose of Summer”

We are moving across the street!  Details forthcoming

Join us for lunch 11:45 AM – 1:15 PM every Third Wednesday

University of Michigan Business School Executive Dining Room (Under construction until 2026) | University of Michigan Golf Course Dining Room

If we were running that upgrade of the dining facility at the business school — instead of Sodexo — we would complete it in six months.  Alas, by some strange bureaucratic configuration, the project is taking 24 months.  Until then we meet at the Golf Course on the South Athletic Campus where, admittedly, parking is easier.

 

Retrodiction

Education & Healthcare Facility Electrotechnology Committee

 

 

The Business of Standards Never Stops

September 29, 2025
mike@standardsmichigan.com
, , ,
No Comments

Standards for a Kitchen Symphony | November/December 2024

ASTM International (formerly known as the American Society for Testing and Materials) is a globally recognized organization that develops and publishes technical standards for a wide range of products, systems, and services. These standards are used by manufacturers, regulatory bodies, and other stakeholders to ensure that products and services are safe, reliable, and of high quality.

In the field of measurement science, ASTM plays an important role in developing standards and guidelines for measurement techniques and practices. These standards cover a wide range of topics related to measurement science, including the calibration of instruments, the characterization of measurement systems, and the validation of measurement results. They are used by researchers, engineers, and other professionals in academia, industry, and government to ensure that measurements are accurate, precise, and reliable.

ANSI Public Review

 

ASTM standards for measurement science are developed through a process that involves input from experts in the field, including researchers, industry professionals, and regulatory bodies. These standards are updated regularly to reflect advances in measurement science and technology, as well as changes in industry and regulatory requirements.  This is a far better way to discover and promulgate leading practice.  In fact, there are regulations intended to restrain the outsized influence of vertical incumbents in legislative precincts where market-making happens.

Federal Participation in Consensus Standards

Previous Posts

Language Proficiency

Standard Specification for 100 % Cotton Denim Fabrics

Performance of Buildings

$500 Capstone Project Stipend Available to Students

Where There is Smoke…There Doesn’t Have to be Fire

Athletic Performance Properties of Indoor Sports Floor Systems

Professor of the Year

Women in Standards

 

Hops

September 27, 2025
mike@standardsmichigan.com
,
No Comments

This content is accessible to paid subscribers. To view it please enter your password below or send mike@standardsmichigan.com a request for subscription details.

Tennis Court Lighting

September 26, 2025
mike@standardsmichigan.com
No Comments

This content is accessible to paid subscribers. To view it please enter your password below or send mike@standardsmichigan.com a request for subscription details.

Report

September 26, 2025
mike@standardsmichigan.com
No Comments

This content is accessible to paid subscribers. To view it please enter your password below or send mike@standardsmichigan.com a request for subscription details.

The Chapel in the Sorbonne

September 26, 2025
mike@standardsmichigan.com
, , , , ,
No Comments

“Patience is the companion of wisdom.”

St. Augustine of Hippo

Sacred Spaces



Solar Panels on King’s College Chapel Roof

September 26, 2025
mike@standardsmichigan.com
, ,
No Comments

“…The solar panels will populate the gothic chapel roof, producing an approximate 105,000 kWh of energy a year – enough to run the chapel’s electricity, and saving around £20,000 in energy bills per year. The college confirmed that any excess energy would be sold off to the national grid.

King’s College Announcement

Solar Panels on King’s College Chapel Roof

Solar panels perform better when listening to music:

A 2013 study by researchers at Imperial College London and Queen Mary University of London showed that solar panels actually work better when exposed to music, of multiple genres. Scientists at the university proved that when exposed to high pitched sounds, like those found in rock and pop music, the solar cells’ power output increased by up to 40 percent. Classical music was also found to increase the solar cells’ energy production, but slightly less so than rock and pop, as it generally plays at a lower pitch than pop and rock. Whether they know it or not, British band Coldplay are just one of the artists benefitting from this research. During their 2021 tour, they installed solar photovoltaic panels in the build-up to each show, “behind the stage, around the stadium and where possible in the outer concourses”…

BS 7671 Requirements for Electrical Installations

The Major Differences in Electrical Standards Between the U.S. and Europe

Representative Calculation: (WAG)

To determine how much electrical power and lighting 12 kilowatts (kW) will provide for an educational facility, we need to consider the following factors:

    1. Power Distribution: How the 12 kW will be distributed across different electrical needs such as lighting, computers, HVAC (heating, ventilation, and air conditioning), and other equipment.
    2. Lighting Requirements: The specific lighting requirements per square foot or room, which can vary based on the type of facility (classrooms, libraries, laboratories, etc.).
    3. Efficiency of Lighting: The type of lighting used (e.g., LED, fluorescent, incandescent) as this affects the power consumption and lighting output.

We start with lighting.

    1. Lighting Efficiency:
      • LED lights are highly efficient, typically around 100 lumens per watt.
      • Fluorescent lights are less efficient, around 60-70 lumens per watt.
    2. Lighting Power Calculation:
      • 12 kW (12,000 watts) of LED lighting at 100 lumens per watt would provide: 12,000 watts×100 lumens/watt=1,200,000 lumens
    3. Illumination Requirements:
      • Classroom: Approximately 300-500 lux (lumens per square meter).
      • Library or laboratory: Approximately 500-750 lux.
    4. Area Coverage:
      • If we target 500 lux (which is 500 lumens per square meter), we can calculate the area covered by the lighting: (1,200,000 lumens)/ 500 lux=2,400 square meters

Now we need to allocate power to other loads.

    1. Lighting: Assuming 50% of the 12 kW goes to lighting:
      • Lighting Power: 6 kW (6,000 watts)
      • Using the previous calculation: 6,000 watts×100 lumens/watt=600,000 lumens
      • Area Coverage for lighting (at 500 lux): (600,000 lumens)/500 lux=1,200 square meters
    2. Other Electrical Needs:
      • Computers and equipment: Typically, a computer lab might use around 100 watts per computer.
      • HVAC: This can vary widely, but let’s assume 4 kW is allocated for HVAC and other systems.

Breakdown:

    • Lighting: 6 kW
    • Computers/Equipment: 2 kW (e.g., 20 computers at 100 watts each)
    • HVAC and other systems: 4 kW

Summary

    • Lighting: 12 kW can provide efficient LED lighting for approximately 1,200 square meters at 500 lux.
    • General Use: When distributed, 12 kW can cover lighting, a computer lab with 20 computers, and basic HVAC needs for a small to medium-sized educational facility.

The exact capacity will vary based on specific facility needs and equipment efficiency.

 

 

Audio Standards

September 26, 2025
mike@standardsmichigan.com
, ,
No Comments

“A Dance to the Music of Time” 1640 Nicolas Poussin

 

 

“The voice of the intellect is a soft one,

but it does not rest until it has gained a hearing.”

— Sigmund Freud

 

The education industry provides a large market for occupancy classes — athletic stadiums, student assembly spaces, performance theaters, large lecture halls– that depend upon effective audio systems*.   To an unexpected degree the structural engineering, specification of materials and electrical system design and operation is informed by acoustical considerations.  So does the integration of fire safety and mass notification systems into normal state enterprises so it is wise to follow and, ideally, participate in leading practice discovery and promulgation of audio standards.

The Audio Engineering Society — one of the first names in this space — has a due process platform that welcomes public participation.   All of its standards open for public comment completed their revision cycle mid-November as can be seen on its standards development landing page below:

AES Standards Development

Note that AES permits access to those revision even after the comment deadline.  You are encouraged to communicate directly with the Direct communication with the standards staff at Audio Engineering Society International Headquarters, 551 Fifth Avenue, Suite 1225, New York NY 10176,  Tel: +1 212 661 8528

We keep the AES suite on the standing agenda of our periodic Lively Arts teleconference.  See our CALENDAR for the next online meeting.

This facility class is one of most complex occupancy classes in education facilities industry so we also collaborate with experts active in the IEEE Education & Healthcare Facilities Committee. Much of the AES suite references, and borrows from, International Electrotechnical Commission system integration and interoperability standards.   The IEEE E&H committee meets online again four times monthly in European and American time zones.  The meeting dates are available on the IEEE E&H website

Media production audio visual

Issue: [19-23]

Category: Electrical, Academic,  Athletics, Fire Safety, Public Safety, #WiseCampus

Contact: Mike Anthony, Jim Harvey

*Mass notification systems are governed by NFPA 72 and, while life safety wiring is separate from other wiring, the management of these systems involve coordination between workgroups with different business objectives and training.

LEARN MORE:

Archive / Audio Engineering Society

 

 

Welcome

Standards Michigan Group, LLC

2723 South State Street | Suite 150
Ann Arbor, MI 48104 USA

888-746-3670

DIRECTIONS

icon icon
icon icon
icon icon  
Layout mode
Predefined Skins
Custom Colors
Choose your skin color
Patterns Background
Images Background
Standards Michigan
error: Content is protected !!
Skip to content