Electrical Industry Articles and Stories

It truly amazes me how LEDs have transformed the lighting industry in just a decade. In 2012, manufacturers introduced the first bulbs to match the output of a standard 60W incandescent. They weren’t dimmable and could cost $25 or more. Fast forward to 2023, and LEDs now dominate the lighting market, and inexpensive replacement lamps can cost less than $5 and last 10-20 years.

Electrical contracting is, by its nature, a bespoke profession – that is, every installation features its own unique design quirks requiring customization. At the same time, though, contractors also now are often dealing with the need to do more with fewer workers. As a result, prefabrication is becoming a bigger part of many companies’ operations.

Looking through a manufacturer’s online enclosure catalog recently, I came across a term I hadn’t heard before. Now, I’m not a contractor, so I likely haven’t seen as many of these listings as you might have. But I am a journalist who has covered the construction industry for several decades, and the term “mild steel” stuck out to me when it showed up as a material option for the maker’s broad range of enclosure offerings.

Earlier this year at the Light + Building 2018 trade show in Frankfurt, Germany, Philips Lighting announced a string of new initiatives aimed at the transition to more LED lamps as well as the inclusion of LEDs into the “Internet of Things” (IoT) in homes and buildings worldwide.

First the company announced IoT platform called Interact, designed to handle data collected from connected light points, sensors, devices and systems.

Some facilities are changing their requirements for motor and appliance installations. This could be due to OSHA Lock-out and Tag-out requirements or NFPA 70E. The change is toward using pin and sleeve devices instead of having a hard-wired installation.

Safety requirements often have the maintenance person checking for the absence of voltage before touching. The rules are quite specific and are enforced by OSHA.

Bonding and grounding are simple concepts, but, unfortunately, they’re also easily confused with each other. Definitions of one term often get wrapped up in the definitions of the other, and, before long, one can begin thinking the words are interchangeable.

“Grounding” refers to the creation of a path from electrical equipment to the earth. It is intended to protect equipment and help prevent fires that might occur due to high voltages resulting from lightning strikes, line surges or unintended contact with higher-voltage lines.