Electrical Contractor Magazine

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. 

In February’s column, I discussed why the Electrical Transmission & Distribution (ET&D) Partnership is an example of an Occupational Safety and Health Administration (OSHA) cooperative program that has worked out extremely well.

Jim Dollard has an extensive background in codes and standards. If you have a query about the National Electrical Code (NEC), Jim will help you solve it. Questions can be sent to codefaqs@gmail.com. Answers are based on the 2014 NEC.
 Abandoned cable in ceiling


Transformer secondary conductor rules are similar to the rules for tap conductors. Rules for transformer secondary conductors and tap conductors are even in the same section of the National Electrical Code (NEC).

Available fault current, short-circuit current rating, arc energy, arc flash hazards, and incident energy are closely related in both the National Electrical Code (NEC) and NFPA 70E, Standard for Electrical Safety in the Workplace.

Electrical Contractor Magazine

More on Codes & Standards

 
Conduits Entering the Bottom of a Switchboard, Connecting Electric Drive Fire Pumps, and More
by Staff |

CODE CITATIONS Article 110—Requirements for Electrical Installations Article 240—Overcurrent Protection Article 250—Grounding Article 300—Wiring Methods Article 384—Switchboards and Panelboards Article 422—Appliances

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Structured Wiring Systems - A New Concept or a Reincarnation?
by Staff |

Recently, a new term has evolved to describe an integration of all low-voltage systems, such as TV, radio, telephone, and Internet/computer interlinks from one main distribution hub to serve all rooms within a building with multifunction communications capability.

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Article 210 - Branch Circuits
by Staff |

210-4 Multiwire Branch Circuits

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Grounding in Patient Care Areas, Overcurrent Protection for Motors, and More
by Staff |

CODE CITATIONS Article 110—Requirements for Electrical Installations Article 210—Branch Circuits Article 250—Grounding Article 430—Motors, Motor Circuits, and Controllers Article 517—Health Care Facilities

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Installing Cable TV in a Nursing Home Facility
by Staff |

As the Baby Boomers of our society reach their golden years, the need for more and more nursing home facilities will become imperative. Electrical contractors will be faced with the responsibility of properly installing many different sophisticated systems within these nursing homes.

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Adequate Short-circuit, Ground-fault, and Overload Protection
by Staff |

Continuing with our review of taps from branch circuits, Sec. 210-19 and from feeders, Sec. 240-21(b) and (c), we turn now to 240-21(d), which is a reference to Sec. 230-91, Service Conductors.

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