Codes & Standards

 

Essential to the work of the electrical contractor is knowledge of the National Electrical Code, the National Electrical Installation Standards and additional standards and codes administered by the National Fire Protection Association, the Occupational Safety and Health Administration and others. Here is a list of all our articles on codes and standards listed chronologically by issue date. 

Comments
Considering Voltage Drop, Counting The Neutral And More

by
Charlie Trout
|
April 2013

If you have a problem related to the National Electrical Code (NEC), are experiencing difficulty in understanding a Code requirement, or are wondering why or if such a requirement exists, ask Charlie, and he will let the Code decide. Questions can be sent to codefaqs@earthlink.net.

Code FAQs, National Electrical Code
Comments
Sizing Conductors, Part XXIII

by
Charles R. Miller
|
April 2013

Article 240 in the National Electrical Code (NEC) provides general requirements for overcurrent protection and overcurrent protective devices.

Code in Focus, National Electrical Code
Comments
What’s On The Inside Counts

by
Mark C. Ode
|
April 2013

Article 424 in the National Electrical Code (NEC) addresses fixed electric space heating equipment, stating, “for the purpose of the article, heating equipment shall include heating cable, unit heaters, boilers, central systems, or other approved fixed electric space-heating equipment.” Since the sc

Code Applications, National Electrical Code, Article 424
Comments
What Is A ‘Ufer’ Ground?

by
Michael Johnston
|
April 2013

At a recent seminar, one of the attendees asked, “What is a ‘Ufer’ ground?” This is a common question. A “Ufer” ground is slang for what the National Electrical Code (NEC) addresses as a concrete-encased grounding electrode.

Code Comments, National Electrical Code

More on Codes & Standards

 
Call Before You Dig !!!
October 2000
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During the1999 National Electrical Code (NEC) cycle, Code-Making Panel 3 (CMP-3) accepted a revision to Section 300-5(d) that reads: “Service laterals that are not encased in concrete and that are buried 18 inches (457mm) or more below grade shall have their location identified by a warning ribbon t

READ MORE
 
Section 384 Uncertainties Cleared Up
October 2000
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Since it first appeared in the 1953 National Electrical Code (NEC) as Sec. 3881 until the 1999 edition in Sec.

READ MORE
 
Grounding and Bonding of Gas Piping
October 2000
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Judging by the responses to NECA’s online “Code Question of the Day (CQD),” gas piping and its use in bonding and grounding sure generated controversy and explosive comentary. The following questions and answers should clarify what many readers are asking.

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Article 370—Boxes, Conduit Bodies, and Fittings
October 2000
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370-20 In Wall or Ceiling

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Branch Circuits, Lampholders, Motor Controllers, and More
September 2000
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CODE CITATIONS Article 210—Branch Circuits; Article 410—Lighting Fixtures, Lampholders, Lamps, Receptacles; Article 430—Motors, Motor Circuits, Controllers Motor branch circuit protection

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Sizing an Equipment Grounding Conductor for a Tap
September 2000
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Tapping a smaller conductor from a larger conductor is common in many electrical installations. Article 240 provides information on the minimum size of tap conductors for installations based upon the overcurrent protection device’s size and location.

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Designing by the Code
September 2000
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In July’s Code Corner, we discussed the location of motor/controller disconnecting means as required by Section 430-102.

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