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.
 Pull boxes for communications cable


Article 110 in the National Electrical Code (NEC) covers general requirements for the examination and approval, installation and use, and access to spaces about electrical conductors and equipment; enclosures intended for personnel entry; and tunnel installations (110.1).

The DC Task Group of the NEC Correlating Committee is proposing three new articles for the 2017 edition of the National Electrical Code (NEC). The first is Article 706, covering energy-storage systems (ESS). The second is Article 710, covering microgrids.

by
Staff  

The National Electrical Code (NEC) requires all boxes and enclosures—including transfer switches, generators and power panels that are part of an emergency system—to be marked so they are readily identifiable as a component of the emergency system.

Electrical Contractor Magazine

More on Codes & Standards

 
Fire Stopping: What Every Contractor Needs to Know

For approximately 40 years, unprotected or improperly protected penetrations have presented a subject of much concern to the fire-protection community. In 1996, an electrical fire occurred at 30 Rockefeller Plaza in New York City.

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Box-Fill Calculations, Part XI

314.16 Number of Conductors in Outlet, Device, and Junction Boxes, and Conduit Bodies The National Electrical Code contains provisions that limit the numbers and sizes of conductors that can be installed in boxes and conduit bodies.

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Redefining Construction

Construction Specifications Institute (CSI) MasterFormat is the most widely used standard for organizing specifications, catalogs and other documents for commercial and institutional building construction projects in the United States and Canada.

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Standard Procedure

Since the beginning of fiber optics, groups such as the Telecommunications Industry Association (TIA) have worked to create standards. Standards are mandatory for technologies to move from R&D to large-scale commercial applications.

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PV Installation: Codes and Standards

The installation of photovoltaic (PV) equipment is governed by a number of industry codes and standards. Electrical contractors need to be aware of the codes and standards to ensure a safe and functional PV installation.

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Use the Service Entrance

The text in Section 230.40 covering the number of sets of service-entrance conductors for each service drop or lateral has not changed since it was accepted into the 1984 National Electrical Code (NEC).

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Avoiding the Pitfalls

According to the Design-Build Institute of America (DBIA) “Design-Build is a process that has been embraced by the world's great civilizations. In ancient Mesopotamia, the Code of Hammurabi (1,800 BC) fixed absolute accountability upon master builders for both design and construction.

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