Electrical Industry Articles and Stories

The electric vehicle (EV) market has had a great 2022, reaching approximately 6% of total U.S. auto and truck sales in the third quarter. While that might seem a small percentage, consider that it’s up from just 2.2% during the same quarter in 2020.

I’ll bet this has happened to you. You’re elbows deep in a wiring project, or lost in a trance-like state, figuring out a major troubleshooting problem.

Suddenly, a tap on the shoulder and a quiet “excuse me” interrupts you, sending a jolt right down your spine.

In new construction, sustainable building practices are becoming the norm. But even in existing buildings, simple strategies can be implemented quickly and easily to address inefficiencies, reduce energy use, improve comfort, and enhance productivity in the space.

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.

Switchboards are critical to the dependability of any electrical power installation because they represent that pivotal point at which incoming power supply is divided into separate circuits, controlled and protected by fuses and switchgear, metered, and then divided into a number of functional units for its given applications. In general, switchboards distribute power to transformers, panelboards, control equipment, and to system loads.

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.