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. 

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.
 Type SE cable support


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

For many years, Article 250, which covers grounding and bonding in the National Electrical Code (NEC), only contained two tables. Table 250.122 was used for sizing the equipment grounding conductors, based on the size of the overcurrent protective device in the circuit.

Energy management is becoming commonplace in today’s electrical infrastructures through the control of utilization equipment, energy storage and power production. Yet, limited consideration is found in electrical installation standards to actively manage these systems.

Electrical Contractor Magazine

More on Codes & Standards

 
Article 210 - Branch Circuits
by Staff |

Please see January issue of Electrical Contracor for referenced figures. 210.8(A) Dwelling Units

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What Does Article 300 Cover?
by Staff |

This article Is based on the newly issued 2002 National Electrical Code (NEC). The NEC style has been changed for the 2002 edition. It may take awhile for those who are familiar with previous issues of the Code to become accustomed to using it, but this new style should make it much easier to use.

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Electrical Installation Requirements, Overcurrent Protection, Lighting Fixtures, and More
by Staff |

CODE CITATIONS Article 110—Requirements for Electrical Installations Article 230—Services Article 240—Overcurrent Protection Article 310—Conductors for General Wiring Article 410—Lighting Fixtures, Lampholders, Lamps, and Receptacles Article 424—Fixed Electric Space-Heating Equipment

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Electrical Installation Requirements, Overcurrent Protection, Grounding, and Transformers and Their Vaults
by Staff |

CODE CITATIONS Article 110—Requirements for Electrical Installations Article 240—Overcurrent Protection Article 250—Grounding Article 450—Transformers and Transformer Vaults Working space around electrical equipment

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Wiring in Ducts, Plenums, and Other Air-handling Spaces
by Staff |

Navigating the requirements in the National Electrical Code (NEC) for ducts, plenums, and other air-handling spaces can be difficult.

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Testing and Maintaining Life Safety Systems
by Staff |

Most electrical contracting firms are involved in installing life safety systems for new building construction and the renovation and expansion of existing buildings, but not in the ongoing system inspection, testing, maintenance, and upgrade.

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