Electrical Codes & Standards
News and stories about the codes standards used by electrical contractors—including the National Electrical Code, NFPA 72: National Fire Alarm and Signaling Code, NFPA 70E: Standard for Electrical Safety in the Workplace, NFPA 101: Life Safety Code, IEEE standards and more—appear monthly in ELECTRICAL CONTRACTOR Magazine and can be read and shared on ECmag.com. Electrical contractors need these codes to stay safe on the job, and many of the codes also protect those living and working in the buildings serviced by ECs.
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Codes & Standards
Get It Running: Motor conductor ampacity, motor ratings and code letters
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When I was new to the electrical construction industry, I worked with a journeyman electrician on a job site who asked me to connect a new electric motor in the building’s electrical equipment room.
Codes & Standards
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Healthcare Applications: CQD Spotlight
Oct 16, 2026
CQD Spotlight features questions and answers from NECA and ELECTRICAL CONTRACTOR’s Code Question of the Day program. Whether you’re a seasoned contractor, an apprentice or simply a National Electrical Code enthusiast, you’ll gain knowledge with a nod to the legacy of Charles M.
...2023 NEC Changes
In his 20-part series, National Electrical Code expert Mark Earley explained all the changes that went into the 2023 edition of the NEC as part of the three-year revision cycle.
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Codes & Standards
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Codes & Standards
Don't Fence Me In
Dec 15, 2010 -
Codes & Standards
Branch-Circuit, Feeder and Service Calculations, Part LVIII
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Codes & Standards
Cables Sharing Runs, Dealing With Inconveniences and More
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Codes & Standards
Sizing Conductors, Part X
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Codes & Standards
Ground Rings, Common Conductors and More
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Codes & Standards
Supply on the Ground
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Codes & Standards
How Many Is Too Many?
Mar 15, 2012 -
Codes & Standards
Medical Emergency
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Codes & Standards
Pedal to the Metal
Jun 15, 2009 -
Codes & Standards
Branch-Circuit, Feeder and Service Calculations, Part XL
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Codes & Standards
Neon Transformers, Circuit Breakers as Switches and More
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Codes & Standards
Branch-Circuit, Feeder and Service Calculations, Part XXXVIII
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Codes & Standards
Residential Calculations: Estimating Elements of the Electrical System
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Codes & Standards
Getting Your Ducts In a Row
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Codes & Standards
Outdoor Air Conditioning GFCIs, Locked-up Panelboards and More
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Codes & Standards
New Building Standards to Save Money and Power
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Codes & Standards
Sizing Conductors, Part XVI
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Codes & Standards
Sizing Grounding Electrode Conductors, Restroom Receptacles and More
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Codes & Standards
Arbiter of an Argument
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Trenchless Installation in Richmond, Va.
Certa-Com® Trenchless Conduit PVC Pipe, assembled on-site and installed beneath a Richmond street with minimal traffic obstruction. See it in action.
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