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. 

Auxiliary grounding electrodes


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 2017 NEC.
 Auxiliary grounding electrodes


During the past couple of months, I have had questions about whether a chase nipple, a raceway (conduit) nipple or a hub can be used to enter into panelboards, load centers, switchboards, switchgear, motor control centers and substations as transitions from cable trays into enclosures.

Article 110 in the National Electrical Code (NEC) contains general requirements for electrical installations. Topics include examination and approval, installation and use, and access to and spaces about electrical conductors and equipment. This article is divided into five parts.


This article provides a review of the significant changes to the rules for healthcare facilities contained in Chapter 5, Special Occupancies, in the 2017 edition of the National Electrical Code (NEC).
 517.2 Governing Body of Health Care Facilities


More on Codes & Standards

 
Code Knows Best

An electrical contractor called me with questions pertaining to the terminating of the neutral and equipment-grounding conductor (EGC) at a sub-fed panelboard.


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IG Receptacles in Patient Care Areas

How many equipment grounding conductors (paths) are required to be installed for a branch circuit supplying patient care areas when the governing body of the healthcare facility specifies isolated grounding (IG) receptacles for specific medical equipment?


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Receptacles in Motels, Laundry Rooms and More

Article 200 Use and Identification of Grounded Conductors; Article 210 Branch Circuits; Article 430 Motors, Motor Circuits, and Controllers Laundry-room receptacles


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Disconnects for Branch Circuits, Deep Fryers and More

Article 100—Definitions; Article 210—Branch Circuits; Article 250—Grounding and Bonding; Article 334—Nonmetallic-Sheathed Cable: Types NM, NMC, NMS; Article 422—Appliances; Article 680—Swimming Pools, Fountains, and Similar Installations; The 2007 Guide Information for Electrical Equipment Directory


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Adopting the NEC

As the 2008 edition of the National Electrical Code (NEC) nears adoption by jurisdictions across the country and beyond, there are rising concerns about changes and additional new requirements.


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Residential Wiring

Here’s the second part of a series reviewing 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.


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