2029 National Electrical Code

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2029 National Electrical Code

April 2, 2026
mike@standardsmichigan.com

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Public input on the 2029 Revision will be received until April 9th. Over the next weeks and months — typically meeting twice a day every Tuesday — we will pull forward our previous proposals and draft original proposals relevant to the education and healthcare electrotechnical infrastructure of educational settlements.  Link to Proposed Reorganization.

 

2029 National Electrical Code Panel 1

2029 National Electrical Code Panel 3

 


Photo at 2723 State Street Office*

Mike was part of the National Electrical Code Quarter Century Club but was at another conference and not able to receive the award at the June conference.  University of Michigan support began in 1993.  IEEE support began in 2014.

*New Office (a short walk across the street) starting October 1: 455 East Eisenhower, Ann Arbor, MI 48108


Current Issues and Recent Research

Today we examine Second Draft transcripts of the Special Equipment Chapter 6 (CMP-12) and product inspection, testing and certification listings that appear Annex A (CMP-1).

 


Once every eighteen months we spend a week drilling into the National Electrical Code by submitting new proposals or comments on proposed revisions.  Today we review the actions taken by the technical committees on the First Draft.   Responses to committee actions will be received until August 26th.

2026 National Electrical Code Workspace


Premise Wiring

Interconnected Electric Power Production Sources “Microgrids”

National Electrical Definitions

Kitchen Wiring

Solarvoltaic PV Systems

Hospital Plug Load

Data Center Wiring

Electrical Inspector Professional Qualifications

Critical Operations Power Systems

Arenas, Lecture Halls & Theaters

Appliances

Emergency and Standby Power Systems

Luminaires, Lampholders, and Lamps

Electric Vehicle Power Transfer System

Art, Design & Fashion Studios

Wiring for Luminaires in High Ceiling Occupancies

Hot Cross Buns

April 1, 2026
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NYC Building Code | Kitchens

These are spiced sweet buns, typically studded with raisins or currants and marked with a cross on top. Their origins trace to pre-Christian pagan traditions, where ancient peoples (including Saxons honoring the goddess Eostre) baked crossed buns for spring festivals symbolizing rebirth and the moon’s quarters. In Christian tradition, an English monk at St. Albans Abbey is credited with baking spiced buns marked with a cross on Good Friday in 1361, distributing them to the poor.

The cross represents Jesus’ crucifixion, while spices evoke the embalming spices used on his body. Buns became linked to breaking the Lenten fast. In Tudor England, their sale was restricted except on Good Friday, Christmas, and funerals. Today, they are enjoyed worldwide during Easter as a symbol of faith, renewal, and the end of Lent.

 

hot cross buns fresh out of the oven to eat on easter

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Kitchens 300

The Common Cup

April 1, 2026
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Michigan Central Summer Fall | Michigan Central Winter Spring

Home

Open every day since 2007: offering locally sourced coffee, teas, baked goods, and a welcoming space for studying or events.  Across Linden Street from First Presbyterian Church of Ann Arbor, Angell Elementary School and footsteps away from Chi Omega and seven other sororities and fraternity houses on the oddly-shaped lot bounded by South University. Washtenaw and Hill Streets.

 

 

A post shared by The Common Cup (@thecommoncupcoffee)

Glen Paulsen Architect

The University Lutheran Chapel in Ann Arbor, Michigan was designed by architect Glen Paulsen in 1959; a local Ann Arbor architect known for his modernist work and close ties to the University of Michigan community. The chapel is one of his most celebrated designs and is widely regarded as an outstanding example of mid-20th-century ecclesiastical architecture in the Midwest. The dramatic hyperbolic-paraboloid roof and the integration of natural light through colored glass strips are signature elements of the building.
His work often emphasized clean lines, structural expression (e.g., exposed concrete and steel), and integration with natural surroundings, influenced by his time with Eero Saarinen and his teaching roles at the University of Michigan and Cranbrook Academy of Art. While the University Lutheran Chapel (1959) in Ann Arbor exemplifies his ecclesiastical modernism with its hyperbolic-paraboloid roof, below is a curated list of his other key projects, drawn from biographical records, architectural archives, and historical surveys.  In the fullness of time his private practice from 1958 to 1969 morphed into TMP (Tarapata-MacMahon-Paulsen, 1969–1977).

Glen Paulsen Architect

The University Lutheran Chapel in Ann Arbor, Michigan was designed by architect Glen Paulsen in 1959; a local Ann Arbor architect known for his modernist work and close ties to the University of Michigan community. The chapel is one of his most celebrated designs and is widely regarded as an outstanding example of mid-20th-century ecclesiastical architecture in the Midwest. The dramatic hyperbolic-paraboloid roof and the integration of natural light through colored glass strips are signature elements of the building.

 

His work often emphasized clean lines, structural expression (e.g., exposed concrete and steel), and integration with natural surroundings, influenced by his time with Eero Saarinen and his teaching roles at the University of Michigan and Cranbrook Academy of Art. While the University Lutheran Chapel (1959) in Ann Arbor exemplifies his ecclesiastical modernism with its hyperbolic-paraboloid roof, below is a curated list of his other key projects, drawn from biographical records, architectural archives, and historical surveys.  In the fullness of time his private practice from 1958 to 1969 morphed into TMP (Tarapata-MacMahon-Paulsen, 1969–1977).

 

Standards Michigan Coffee | Standards Michigan Chapels

Passover Menu

April 1, 2026
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Standards Ohio

Bagel & Lox

April 1, 2026
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Culture and Cuisine Recipe of the Week

Hamburg’s Master Plan for Education for Sustainable Development 2030

“With this weekly post we want to introduce you into the culinary range of the English speaking world. Each week we present you an iconic dish and give you information around its origin, preparation and eating habits. This week we are visiting the Big Apple – New York. Bagels can be regarded as a true American melting-pot meal.”  — von Nadja Wostiera (Language graduate and blog author)

Standards Michigan: Food/Kitchen/Farm/Agriculture

EAT

Universität Hamburg

Evensong “Peace”

Practical Jokes 2026

April 1, 2026
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Math Professor Fixes Projector Screen

Binary Test Result

Quick Adjustment

Keeping MIT Weird

Fake Professor

Gallery: Doctoral Dissertations, et al

Healthcare Facilities Code

April 1, 2026
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“The Doctor”  1891 Sir Luke Fildes

The NFPA 99 Healthcare Facilities Code committee develops a distinct consensus document (i.e. “regulatory product”) that is distinct from National Electrical Code Article 517; though there are overlaps and gaps that are the natural consequence of changing technology and regulations.  It is worthwhile reviewing the scope of each committee:

NFPA 99 Scope: This Committee shall have primary responsibility for documents that contain criteria for safeguarding patients and health care personnel in the delivery of health care services within health care facilities: a) from fire, explosion, electrical, and related hazards resulting either from the use of anesthetic agents, medical gas equipment, electrical apparatus, and high frequency electricity, or from internal or external incidents that disrupt normal patient care; b) from fire and explosion hazards; c) in connection with the use of hyperbaric and hypobaric facilities for medical purposes; d) through performance, maintenance and testing criteria for electrical systems, both normal and essential; and e) through performance, maintenance and testing, and installation criteria: (1) for vacuum systems for medical or surgical purposes, and (2) for medical gas systems; and f) through performance, maintenance and testing of plumbing, heating, cooling , and ventilating in health care facilities.

NFPA 70 Article 517 Scope:  The provisions of this article shall apply to electrical construction and installation criteria in healthcare facilities that provide services to human beings.  The requirements in Parts II and III not only apply to single-function buildings but are also intended to be individually applied to their respective forms of occupancy within a multi-function building (e.g. a doctor’s examining room located within a limited care facility would be required to meet the provisions of 517.10)   Informational Note: For information concerning performance, maintenance, and testing criteria, refer to the appropriate health care facilities documents.

In short, NFPA 70 Article 517 is intended to focus only on electrical safety issues though electrotechnology complexity and integration in healthcare settings (security, telecommunications, wireless medical devices, fire safety, environmental air control, etc.) usually results in conceptual overlap with other regulatory products such as NFPA 101 (Life Safety Code) and the International Building Code.

Several issues were recently debated by the Article 517 technical committee during the 2023 National Electrical Code Second Draft meetings

  • The conditions under which reconditioned electrical equipment be installed in healthcare settings; contingent on listing and re-certification specifics.
  • Relaxation of the design rules for feeder and branch circuit sizing through the application of demand factors.
  • Application of ground fault circuit interrupters.
  • “Rightsizing” feeder and branch circuit power chains (Demand factors in Section 517.22)
  • Patient care space categories
  • Independence of power sources (517.30)

There are, of course, many others, not the least of which involves emergency management.  For over 20 years our concern has been for the interdependency of water and electrical power supply to university hospitals given that many of them are part of district energy systems.

We need to “touch” this code at least once a month because of its interdependence on other consensus products by other standards developing organizations.  To do this we refer NFPA 99 standards action to the IEEE Education & Healthcare Facilities Committee which meets online four times monthly in European and American time zones.

The transcript of NEC Article 517 Public Input for the 2023 revision of NFPA 70 is linked below.  (You may have to register your interest by setting up a free-access account):

Code-Making Panel 15 (NEC-P15) Public Input Report

Code-Making Panel 15 (NEC-P15) Public Comment Report

Technical committees will meet in June to endorse the 2023 National Electrical Code.

Public consultation on the Second Draft closes May 31st. Landing page for selected sections of the 2024 revision  of NFPA 99 are linked below:

Electrical Systems (HEA-ELS)

Fundamentals (HEA-FUN)

Health Care Emergency Management and Security (HEA-HES)

Second Draft Comments are linked below:

Electrical Systems (HEA-ELS)

Fundamentals (HEA-FUN)

Health Care Emergency Management and Security (HEA-HES)

NITMAM closing date: March 28, 2023

We break down NFPA 70 and NFPA 99 together and keep them on the standing agenda of both our Power and Health colloquia; open to everyone.  See our CALENDAR for the next online meeting.

"The trained nurse has become one of the great blessings of humanity, taking a place beside the physician and the priest" - William Osler"While we try to teach our children all about life, our children teach us what life is all about" - Angela Schwindt "The true art of pediatrics lies not only in curing diseases but also in preventing them" - Abraham JacobiGermany

Issues: [12-18, [15-97] and [16-101]

Contact: Mike Anthony, Jim Harvey, Robert Arno, Josh Elvove, Joe DeRosier, Larry Spielvogel

NFPA Staff Liaison: Jonathan Hart

Archive / NFPA 99

Kahn Health Care Pavilion

April 1, 2026
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Our tenure in the 2026 National Electrical Code will result in at least a 10 percent reduction in the cost of building premise wiring — (mostly in the feeder power chain) — in healthcare facilities; based on the results of last month’s meeting of Code Making Panel 15.

Assuming electrical power infrastructure is 15 percent of in a $920 million facility like this (excluding interior moveable fixtures), that would have meant an approximate $14 million reduction in cost.  That cost savings cannot be realized because it was designed to an earlier version of the National Electrical Code.

Facilities and Operations

National Electrical Code CMP-15

Healthcare Facilities Code

Hospital Plug Load


Related:

New University of Michigan hospital to be named after philanthropists D. Dan and Betty Kahn

ORT America

$920M Michigan Medicine tower tops out, targets 2025 opening

 

Communication in the Presence of Noise

March 31, 2026
mike@standardsmichigan.com

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Communication in the Presence of Noise

Claude E. Shannon

University of Michigan – Bell Telephone Laboratories – Massachusetts Institute of Technology

Abstract. A method is developed for representing any communication system geometrically. Messages and the corresponding signals are points in two “function spaces,” and the modulation process is a mapping of one space into the other. Using this representation, a number of results in communication theory are deduced concerning expansion and compression of bandwidth and the threshold effect. Formulas are found for the maximum rate of transmission of binary digits over a system when the signal is perturbed by various types of noise. Some of the properties of “ideal” systems which transmit at this maxmum rate are discussed. The equivalent number of binary digits per second for certain information sources is calculated.

CLICK HERE to order complete paper

 

Spring Break

March 31, 2026
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Michigan Central

 

One MSU Professor Singlehandedly Started Spring Break

Hillsdale to Hilltop: The Story of Michigan Lass Kat Timpf

🐦Homophily Michigan 🐦

“You’d get married? Well, what about school?”

“Girls like me weren’t built to be education. We were made to have children. That’s my ambition: to be a walking talking baby factory”


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