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. 

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

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

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.

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.

More on Codes & Standards

 
Parking Lot Lights, Overcurrent Protection and More

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.

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Sizing Conductors, Part VII

Allowable ampacities for insulated conductors rated up to and including 2,000 volts (V) are in Table 310.15(B)(16). This table underwent a number change in the 2011 edition of the National Electrical Code (NEC). Before, this table was numbered 310.16.

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Ch-Ch-Ch-Changes

The 2009 Life Safety Code underwent significant changes from past versions, especially in Section 9.6 and the requirements regarding voice messages. The International Building Code (IBC) and NFPA 101, the Life Safety Code (LSC), differ in how they handle the delivery of emergency messages.

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Keeping up to Date

Arc-fault circuit interrupter (AFCI) protection was originally proposed for the 1996 National Electrical Code (NEC) by the Electronic Industry Association, but it failed to receive enough votes during the adoption process.

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Clarifying Intent

Section 250.30 is the topic of much discussion in every workshop that I instruct on the changes in the 2011 National Electrical Code (NEC). The section has been completely rewritten in an effort to make the requirements easier to read, understand and apply.

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Fridge Branch Circuit, Drilling Weep Holes and More

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.

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NECA Releases Telecommunications Grounding and Bonding Standard

The National Electrical Contractors Association (NECA) published NECA-BICSI-607-2011, Standard for Telecommunications Bonding and Grounding Planning and Installation Methods for Commercial Buildings (ANSI).

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