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. Send questions to codefaqs@gmail.com. Answers are based on the 2017 NEC.
 Kitchen GFCIs


A friend recently sent me an email with this picture (right) of a manual fire alarm pull station mounted on the side of an electrical panelboard. My friend was inspecting the fire alarm system and was accompanied by the electrician who had installed both the fire alarm and electrical systems.

All of the chapters in the National Electrical Code (NEC) contain tables, but not all of the chapters contain articles. Chapter 9 does not contain any articles; this last chapter only contains tables. The first of two articles in Chapter 1 is Article 100, Definitions.

Reducing differences of potential between conductive equipment or other objects and ground (earth) helps minimize shock hazards in normal circuit operation.

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Outdoor Receptactles, AFCIs and More

Article 110 Requirements for Electrical Installations; Article 210 Branch Circuits; Article 220 Branch Circuit, Feeder, and Service Calculations; Article 310 Conductors for General Wiring; Article 334 Nonmetallic-Sheathed Cable: Types NM, NMC, and NMS; Article 358 Electrical Metallic Tubing: Type EM


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Being Safe and Doing it Right

After addressing the lighting and exterior area of the premises last month, this month’s article concentrates primarily on internal security of the building, using Article 708 covering critical operations power systems (COPS) in the 2008 National Electrical Code (NEC).


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Paralleling Cable, Compressor Motor Protection and More

Article 110—Requirements for Electrical Installations; Article 210—Branch Circuits; Article 240—Overcurrent Protection; Article 250—Grounding and Bonding; Article 310—Conductors for General Wiring; Article 334—Non-Metallic Sheathed Cable: Type NM, NMC, and NMS; Article 406—Receptacles, Cord Connecto


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Security for Facilities

With all that has been happening in the past few years, homeland security has become one of the most important aspects of our lives.


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Purged and Pressurized Systems

This is a continuation of my last column, which was about the different types of purged and pressurized systems used in modern control rooms.


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Blast from the Past

This new series will review the most popular questions that have appeared in NECA’s online Code Question of the Day and have generated the most comments from the subscribers. All answers are updated to comply with the 2008 National Electrical Code (NEC).


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