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.
Latest Articles
Codes & Standards
Wisconsin Updates National Electrical Code to 2023 Edition
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On Sept. 1, the Wisconsin Department of Safety and Professional Services (DSPS) announced it adopted the 2023 National Electric Code (NEC). The state had previously been using the 2017 edition with amendments.
Codes & Standards
Stay Focused on the Code Changes
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We have had multiple large-loss fires over the years that have impacted, and continue to impact, code development. Each of these fires caused code changes, and often multiple codes were changed.
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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More Codes & Standards Articles
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![Installing Transformers in Special Situations]()
Codes & Standards
Installing Transformers in Special Situations
Mar 15, 2001 -
![Temperature Limitations of Connections Must Not Be Exceeded]()
Codes & Standards
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![Electrical Installation Requirements, Conductors for General Wiring, Flexible Cords and Cables, Appliances, and Fire Pumps]()
Codes & Standards
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![Article 370 - Pull and Junction Boxes]()
Codes & Standards
Article 370 - Pull and Junction Boxes
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![Installing Outlet Boxes with Lighting Fixtures]()
Codes & Standards
Installing Outlet Boxes with Lighting Fixtures
Apr 15, 2001 -
![Chapter 8, Communication Systems: Independent and Not Inspected?]()
Codes & Standards
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![Taming the Fire-Breathing Dragon]()
Codes & Standards
Taming the Fire-Breathing Dragon
May 15, 2001 -
![Motor Control Circuits: To Ground or Not to Ground?]()
Codes & Standards
Motor Control Circuits: To Ground or Not to Ground?
May 15, 2001 -
![Why Does the NEC Prohibit Overcurrent Device Installation in Clothes Closets?]()
Codes & Standards
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![Classification of a Hazardous Location]()
Codes & Standards
Classification of a Hazardous Location
May 15, 2001 -
![Article 210 - Branch Circuits]()
Codes & Standards
Article 210 - Branch Circuits
Aug 15, 2001 -
![Making Sense of the Tap Rules]()
Codes & Standards
Making Sense of the Tap Rules
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![Group Classifications of Gases or Vapors in a Hazardous (Classified) Location]()
Codes & Standards
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![Overcurrent Protection, Grounding, Air Conditioning and Refrigerator Equipment, and More]()
Codes & Standards
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![Article 370 - Outlet, Device, Pull and Junction Boxes, Conduit Bodies and Fittings, Part III]()
Codes & Standards
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![Overcurrent Protection for Motor Installations, Part II]()
Codes & Standards
Overcurrent Protection for Motor Installations, Part II
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![Flexible Metal Conduit Length, Use of the Term 'Tap' Conductor for High-temp Wires]()
Codes & Standards
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![NEC and OSHA Add to Confusion about GFCIs]()
Codes & Standards
NEC and OSHA Add to Confusion about GFCIs
Aug 15, 2000 -
![Splices and Conductor Fill in Enclosures and Wireways]()
Codes & Standards
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![Grounded Conductor ID, Outside Branch Circuits and Feeders, Services, Lighting Fixtures, and More]()
Codes & Standards
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