| | | | | | In managing any electrical system, the National Fire Protection Association (NFPA) publishes three key documents (NFPA 70, National Electrical Code; NFPA 70E, Standard for Electrical Safety in the Workplace; and NFPA 70B, Standard for Electrical Equipment Maintenance). As of January 2023, NFPA 70B has evolved from a “recommended practice” into an enforceable... |
|
|
|
| |
|
|
|
| | Sponsored | | MENNEKES SPEC Grade Series of NEMA 4X Stainless Steel Disconnects now includes a 200A and 400A model. Units feature a sloped roof to facilitate runoff and have a compact mounting footprint for use in several plant areas. Switches are UL 98 Listed with a rugged pistol grip LO/TO compliant handle and are provided standard with early break auxiliary contacts. |
|
|
|
| |
|
|
|
| | | | To really understand what the NEC means by “legally required standby systems,” we need to back up a bit and get a handle on what a standby system is. Chapter 7 starts off with a series of Articles covering various types of onsite power generation systems. |
|
|
|
| |
|
|
|
| | | | Mark Lamendola shares best practices for how to bring hidden maintenance errors out of hiding. Learn about an eight-step process that will prevent PMs from accidentally reducing equipment reliability. |
|
|
|
| |
|
|
|
| | Sponsored | | Safe reliable power is the goal of every professional responsible for the design, installation, and maintenance of electrical power systems. Transformers play a critical role in electrical systems, transferring energy between different voltage levels, and ensuring efficient power distribution. Routine maintenance is crucial for ensuring optimal electrical... |
|
|
|
| |
|
|
|
| | | | Randy Barnett covers five topics to help understand the practical side of complying with the new maintenance requirement for electrical equipment. |
|
|
|
| |
|
|
|
| | Sponsored | | In this article, you will find a brief history of the circuit breaker evolution and what smart capabilities are being incorporated today. |
|
|
|
| |
|
|
|
| | | This year's Top 40 Electrical Design Firms managed to squeeze out revenue growth despite economic uncertainly. Reporting a combined electrical design revenue total of $4.447 billion in 2023 (the full year of data that the 2024 survey results are based on), respondents managed to come in 13% higher as a collective group than the year before. See some... |
|
|
|
| |
| | Sponsored | Become an EASA member and get help through a variety of resources, including world-class engineers. EASA can answer questions regarding electric motor maintenance and repair or rewind, application issues, failure analysis, vibration and pumps. Join EASA, utilize EASA’s technical support specialists, and see an instant ROI. |
|
|
|
| |
|
|
|
| | | Now the plant engineer and plant manager have presented you with a problem they want fixed. Feeder cable failures have been increasing over the past decade, and four feeder cables have failed in the past two years. But they didn’t fail open — they failed to ground. As a new plant electrical engineer, how would you solve this problem? |
|
|
|
| |
| | Sponsored | Facilities Expo combines electrical solutions, MRO, and green building expertise under one roof. Explore the free expo floor, attend industry talks, and network with professionals. |
|
|
|
| |
|
|
|
| | | The NFPA Fire & Life Safety Ecosystem is a framework that identifies the components that must work together to minimize risk and help prevent loss, injuries, and death from fire, electrical, and other hazards. There are eight key components to the ecosystem. |
|
|
| In Episode 36 of “EC&M Asks,” a video series featuring subject matter experts (SMEs) answering reader-submitted questions regarding popular electrical topics, Ryan Mayfield, founder and SME of Mayfield Renewables, discusses how to apply the 120% rule in the PV industry. He explains how to make a solar interconnection to a subpanel by applying this ... |
|
|
| It's that time of year again — time to preview EC&M's highly anticipated Top 40 electrical design firms list for 2024, ranked specifically by electrical design revenue earned in 2023. This photo gallery offers a sneak peek at the companies making it into the top 10 spots, listed in descending order. |
|
|
|
| |
| | | Cities in the state of California and Washington topped the “Top 10 Highest-Paying Cities for Electricians for 2023” once again, based on data from “Occupational Employment and Wages, May 2023 Study,” provided by the U.S. Bureau of Labor Statistics. The state of Washington had the most cities represented, followed by California and Illinois, then Oregon... |
|
|
| In this episode of EC&M Code Conversations, Editor-in-Chief Ellen Parson and Code Consultant Russ LeBlanc talk about Sec. 440 of the NEC and the ever-common problem related to working space challenges that continue to plague electrical installations. |
|
|
| Vote between now and June 23, 2024, for the Product of the Year. |
|
|
|
| |
|
|
|
| | |
|
| | |
|
