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Intelligent Power Today Magazine
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Introducing Intelligent Power Today

Welcome to Intelligent Power Today Magazine, our publication that explores and explains the who, what, where, when, why and how of intelligent electrical devices, a collection of complex mechanical devices and sophisticated control systems used in industrial, commercial, and institutional facilities—also known as intelligent buildings.

According to the Institute for Building Efficiency, intelligent buildings use smart technologies to improve system functionality, control operating costs, and to keep building occupants safe, secure, comfortable, and, of...

Buyer's Guide

News & Trends

2024 CE Code Training - Better Understanding of the Rules

CE Code training is intended to do a lot more than instruct about what changes have taken place since the last time Canada issued a national electrical code. We are producing a series of courses across Canada by one of Canada’s leading experts on the 2024 Edition of Canada’s Electrical...

Electrical Safety

Frequently Asked Questions about Arc Flash Relays

Answering frequently asked questions about arc flash relays

BY BOB ZWEIFEL, Littelfuse

The dangers of an arc flash incident—burns, blast, molten metal ejected at ballistic speeds—are by now familiar to every electrical worker. Most electrical professionals have read about strategies to minimize arc flash hazards, including arc flash relays. Now many of them are seriously considering integrating arc flash relays, but they have many questions about how to install this unfamiliar technology and exactly what the benefits will be.

Electrical Source Magazine and Littelfuse, based on the company’s frequently asked questions, offer some insight on how to apply these valued...

Arc Flash Analysis in DC Power Systems

Advanced approaches to addressing direct-current arcing faults

BY MICHAEL FURTAK & LEW SILECKY, Mersen

Let’s face it: there is not very much information available about direct current (DC) arc flashes. And, if you have searched in vain, well hopefully this feature will give you some insight into arc flash with relevance to DC circuits. Essentially, we want customers to be armed with information so that they can accurately determine the necessary level of protection required when working around these circuits.

In this feature, direct-current arcing fault incident energy calculations are presented to assess the level of risk involved when working...

Popular Electrical Safety Articles

IEEE Method Vs. the NFPA 70E Tables

IEEE Method Vs. the NFPA 70E Tables: Evaluating arc flash analysis methods BY REZA TAJALI, Schneider Electric Recent changes in workplace safety regulations have heightened the awareness of hazards associated with electrical arcs. The hazard level must be quantified and workers properly protected...

Electrical Safety Lessons Learned

How to reduce electrical-related deaths and injuries to zero BY JENIFER ROBERTSON, Electrical Safety Authority Consider this scenario: An electrician is modifying an electrical circuit in a ceiling space at an educational institute. To perform the task, he de-energizes his specific circuit, but...

The Guide to Arc Flash Clothing

A new method to choosing personal protective equipment BY JIM WHITE, Shermco Industries, Inc. Table 130.7(C)(15)(a) in the 2012 edition of NFPA 70E: “Standard for Electrical Safety in the Workplace”, published by the National Fire Protection Association, has always been difficult for...

Calculating Incident Energy

Over the last few decades, arc-fl ash hazards have been a significant concern for many electrical workers and employers. Many methods have been developed through the years to assess incident energy.The most common is that of the IEEE 1584, Guide for Performing Arc-Flash Hazard Calculations. These...