Electrical Codes & Standards
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Codes & Standards
Code Knows: How well do you understand the general requirements?
Article 110 of the National Electrical Code covers the general requirements for the examination, approval, installation and use of electrical equipment, plus the spaces around it. These requirements apply to all installations, except as amended elsewhere in the code.
Codes & Standards
Wired for Change: What’s new for Chapter 3 in the 2026 NEC
The 2026 edition of NFPA 70, the National Electrical Code, brings a range of updates to Chapter 3 governing wiring methods and materials.
2023 NEC Changes
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Codes & Standards
Sizing Conductors, Part X
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Ground Rings, Common Conductors and More
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Supply on the Ground
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How Many Is Too Many?
Mar 15, 2012 -
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Medical Emergency
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Pedal to the Metal
Jun 15, 2009 -
Codes & Standards
Branch-Circuit, Feeder and Service Calculations, Part XL
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Neon Transformers, Circuit Breakers as Switches and More
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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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Codes & Standards
Which Is It?
Sep 15, 2012 -
Codes & Standards
NEC 2014 Outlook
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Not as Easy as It Looks
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Loop Length, Underground Feeders and More
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