Maintenance, Repair & Operations

Everything electrical professionals need to know about MRO, including technical advancements and trends in the maintenance, repair and operations of electrical equipment and systems.

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Highlights

Photo 2. This worker is attaching the current clamp from a power quality analyzer to a feeder conductor supplying a three-phase panelboard in a data facility. Study power quality to track down some of those “mysterious” equipment problems.

Top Tips to Improve Your Electrical Troubleshooting Skills

Aug. 19, 2024
Avoiding these common mistakes in electrical system evaluation and diagnosis leads to increased efficiency and reduced downtime.
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Code Quiz of the Week: No. 477

Feb. 10, 2025
Weekly Quiz on the 2023 National Electrical Code
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Editor’s Choice: Top Product Picks for February 2025

Feb. 10, 2025
Don't miss the latest product innovations.
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A close up of an electrical working locking out / tagging out a piece of electrical equipment

Electrical Safety Foundation International Releases Updated Workplace Safety Statistics

Feb. 7, 2025
The most recent data set compiles information from OSHA and the U.S. BLS across the 13 years between 2011 and 2023.
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A folder with a tab that says 'Equipment Maintenance' rests on top of a keyboard.

Maintenance-Related Questions for Critical Equipment

Feb. 4, 2025
As a maintenance manager, see if you can answer these questions about the equipment in your facility to avoid "over-maintaining" them.
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Code Quiz of the Week: No. 475

Jan. 27, 2025
Weekly Quiz on the 2023 National Electrical Code
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Uncovering Common Power Quality Misconceptions

Jan. 23, 2025
Case studies demonstrate how typical PQ myths can trip up even the most seasoned electrical investigators.
Power factor correction capacitor bank

Understanding Power Factor Basics

Jan. 23, 2025
What is power factor, and why do you need to know about it?
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EC&M On Air Highlights How to Avoid Spark Explosions & Use Static Grounding Devices

EC&M On Air Highlights How to Avoid Spark Explosions & Use Static Grounding Devices

Jan. 23, 2025
ICYMI, Ellen Parson reads a popular article from safety expert Rick Pedley on prevent spark explosions.