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.

Recent

ID 298432033 © Eakrin Rasadonyindee | Dreamstime.com
dreamstime_m_298432033
Photo 213473953 © SlavkoSereda | Dreamstime.com
Fire Pump
ID 148410432 © Slavun | Dreamstime.com
dreamstime_xxl_148410432
ID 326539941 © Ylivdesign | Dreamstime.com
dreamstime_xxl_326539941
Courtesy of Fluke
Power quality troubleshooting
ID 182484191 © Katie Nesling | Dreamstime.com
dreamstime_m_182484191

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.
ID 54648446 © Stnazkul | Dreamstime.com
dreamstime_xxl_54648446

Code Quiz of the Week: No. 464

Nov. 11, 2024
Weekly Quiz on the 2023 National Electrical Code
ID 84700103 © Tashatuvango | Dreamstime.com
dreamstime_m_84700103

Electrical Maintenance Tips for Avoiding Recalls and Rework

Nov. 5, 2024
Rework can be costly. Learn what contributes to its high cost and recommendations on how to prevent rework/recalls.
ID 331459991 © Andrei Dzemidzenka | Dreamstime.com
dreamstime_m_331459991

Electrical Troubleshooting Quiz — November 5, 2024

Nov. 5, 2024
How would you help resolve the speed variations of this production line?
ID 188775926 © Josepalbert13 | Dreamstime.com
dreamstime_m_188775926_2

NEC Definitions for Wireways

Nov. 5, 2024
Do you know what the NEC means when it comes to this term?
ID 12988709 © Marc Torrell Faro | Dreamstime.com
dreamstime_xxl_12988709
ID 2601612 © Yong Hian Lim | Dreamstime.com
dreamstime_xxl_2601612

Code Quiz of the Week: No. 462

Oct. 28, 2024
Weekly Quiz on the 2023 National Electrical Code
3alexd/iStock/Getty Images Plus
ev_charging_1024

The Current State of EV Charging

Oct. 21, 2024
As the public EV charging market matures, travel stops need help from electrical professionals to ensure drivers have a consistently positive experience.
Courtesy of Eaton
A comprehensive approach to EVCI should integrate charging infrastructure into existing energy infrastructure to minimize the space and labor required while maximizing safety and security.

Getting EV Charging Infrastructure Projects Off the Ground

Oct. 21, 2024
Key considerations for commercial, industrial, and fleet applications
Photo 213473953 © SlavkoSereda | Dreamstime.com
Fire pump

Design Guidelines for Electric Fire Pump Power Services — Part 2 of 3

Oct. 21, 2024
Addressing the continuity of power requirement in the NEC