Code Watch
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Apr
1

Code Watch

Keeping an eye on your most important electrical standard

 Code Watch 
 
 
 
Cover Image 4 01 2021
 

Moving Violations Video No. 237: Short on Space

Talk about a tight work space. As Russ shows us in this video, there’s a clear violation of working space depth in front of this 480V panelboard. Section 110.26(A)(1) of the 2020 NEC requires 4 ft of working depth at the front of the panel because it faces another panel on the opposite wall. There’s currently less than 30 in. of clearance.

 
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Code Quiz

Test your knowledge of the 2020 NEC with this quiz from NEC Consultant John Lupacchino. Can the AHJ require periodic inspections of swimming pools?

 
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Quiz No. 275

Fill in the blank. In major repair garages where ventilation is not provided, any pit or depression below floor level shall be a Class I, _____ location.

 
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Old School Engineering Tools

Like the dodo bird, VCRs, and Jello Pudding Pops, many tools that were once staples of an electrical engineer's professional repertoire have now gone the way of the dinosaur: extinct (or nearly so).

 
 
Fig. 1. Here’s an example of how GFCI protection requirements come into play in a kitchen setting.
 

Stumped by the Code? Requirements for GFCI Protection of Branch Circuit Receptacles in Dwelling Units

NEC Consultant Mike Holt provides answers to challenging Code questions. What are the NEC requirements for GFCI protection of branch circuit receptacles in dwelling units?

 

 
Fig. 1. To create a grounding electrode system, you bond the various electrodes that are present.
 

The Differences Between Grounding and Bonding — Part 3 of 12

To create a grounding electrode system, you bond the various electrodes that are present. A solid understanding of grounding electrode system requirements can prevent cost over-runs, Code violations, and performance failures.

 
Members Only
Microgrid basics, including elements of safety, have been offered through The Laboratory for Energy and Power Solutions at Arizona State University.
 

Energy Storage and Microgrid Training for Electricians Takes Off

PREMIUM CONTENT: ESAMTAC program, designed to train, test, and certify installers, gets a big boost in California, where more migrogird projects are ramping up. The new California initiative would produce the first broad-based orchestrated rollout of ESAMTAC, which has been deployed on an on-demand basis as a network of educators has been built up and slowly connected with interested training organizations around the United States.

 

 
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What’s Wrong Here? Hint: Vintage Violations

NEC Consultant Russ LeBlanc stumbled across this installation. Think you know how it violates the NEC? Hint: Vintage violations.

 
 
Intro Photo
 

Classification of Hazardous (Classified) Locations

Determining whether or not an area is going to be considered a hazardous (classified) location is critical to the type of construction, wiring methods involved, and the overall safety of the intended occupants.

 
 

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