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

 
Taming the Fire-Breathing Dragon
by Staff |

If you thought industry standards had pretty much solved the problem of electrical injuries and fatalities in the workplace, then you should know that is not the case.

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Installing Outlet Boxes with Lighting Fixtures
by Staff |

Call me old-fashioned, but I have long held the opinion that, in a dwelling unit, an outlet box must be installed wherever a lighting fixture is to be installed.

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Article 370 - Pull and Junction Boxes
by Staff |

370-28(a)(2) Angle Pulls

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Electrical Installation Requirements, Conductors for General Wiring, Flexible Cords and Cables, Appliances, and Fire Pumps
by Staff |

CODE CITATIONS Article 110—Requirements for Electrical Installations Article 230—Services Article 310—Conductors for General Wiring Article 400—Flexible Cords and Cables Article 422—Appliances Article 695—Fire Pumps

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Temperature Limitations of Connections Must Not Be Exceeded
by Staff |

The temperature rating associated with the ampacity of a conductor must be selected and coordinated so that the lowest temperature rating of any conductor, equipment termination, or electrical device is not exceeded.

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Installing Transformers in Special Situations
by Staff |

The column this month will cover questions about transformer installations that were the subject of concern to subscribers to NECA’s on-line “Code Question of the Day.” All answers are based on the current 1999 edition of the National Electrical Code (NEC); however, beginning with this month’s colum

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