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Channel: May-June 2016 – IAEI Magazine
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Code Hunter — Annexes, 2014 NEC

The Questions To play this game, you need a sharp eye, a quick mind and a 2014 National Electrical Code book. (Fill-in-the-blank questions are looking for the exact word(s) used in the NEC.) 1) This...

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Making the Jump: Bonding Basics

Belly Up: The Stark Reality When a contractor defaults on a building project, there are no winners. The contractor has lost his livelihood, reputation, and future ability to be trusted. The project...

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When is overcurrent protection required for current-carrying conductors?

This article will explore the need for overcurrent protection for current-carrying tap conductors. CE Code Rule 14-100 requires overcurrent protection where a conductor receives a supply of current and...

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Medical Grade Strip Requirements, an Overview

Due to the many safety standards that apply to medical grade power strips, identifying the correct set of standards for a patient care application can be burdensome.   This article will attempt to...

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Questions from the Field: We are seeing many more supply-side PV Systems

PV system prices continue to drop, the 30% Federal Investment Tax Credit has been extended for another three years, and PV modules and inverters continue to increase in size. Inspectors are seeing more...

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Design, installation, and inspection of fire alarm system audible signal...

Requirements for audibility of a fire alarm system (FAS) are governed by Article 3.2.4.19. of the National Building Code of Canada (NBCC). So, why is this subject being discussed in a purely electrical...

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UL Question Corner: Are there “UL Authorized” Service People?

Are there “UL Authorized Service People” who can modify UL Listed equipment in the field with no need of a UL field inspection or a field evaluation? Answer No. See the Guide Information for...

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100% vs 80%: Choosing the right OCPD solution

We make decisions every day, both personally and professionally, with our checkbook in mind.  When decisions are made to “value engineer” or cost out a design to save money on a project, attention is...

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How electricians test continuity of protective conductors

For all protective conductors, including main and supplementary bonding conductors, electricians must perform a continuity test using a low-reading ohmmeter. For main equipotential bonding, there is no...

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Inspecting Power Generating Substations

I remember many years ago working at a nuclear generating facility and being surprised that there was very little of the NEC being applied to the installation. It was mostly engineered design utilizing...

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