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August 2023
August 2023
Electrical Construction & Maintenance: Volume 122, Issue 8
August 2023 cover image
August 2023
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Renew
Photo 2. The NEC Sec. 110.7, Wiring Integrity, requires “completed wiring installations shall be free from short circuits, ground faults, or any connections to ground other than as required or permitted elsewhere in this Code.” Before installation of load side conductors into this 200A disconnect, the line side conductors are tested to ensure no ground faults exist. Load side conductors will be tested after installation.
Test & Measurement
Measuring Insulation Resistance the Right Way
Aug. 11, 2023
Circuit Breaker Sales, LLC
Photo 1. An arc flash can generate an electric arc with a temperature of 35,000ºF.
Safety
Assessing Circuit Breaker Condition and Arc Flash Safety
Aug. 11, 2023
Ellenheadshot Rev
Industry Viewpoint
Making Sure You Stay on the Safe Side of Electrical Maintenance
Aug. 10, 2023
MegaFlex UL
Product of the Year
2023 EC&M Product of the Year: UPS Produces More Power in a Compact Footprint
Aug. 10, 2023
Ipq Photo3
Power Quality & Reliability
Preventive Measures for UPS Systems
Aug. 10, 2023
More content from August 2023
Facility Solutions, Austin, Texas (#64 on EW’s ranking), expects Netflix’s plans to redevelop the Fort Monmouth, N.J., campus into a major film studio to provide business in the coming years. According to a Netflix press release, the first phase of the project will include the construction of 12 soundstages that will range in size from 15,000 sq ft to 40,000 sq ft each with a maximum build out of 480,000 sq ft.
Construction
2023’s Largest Electrical Distributors
Despite concerns over a recession, most of 2023’s Top 150 distributors expect to power through the uncertain economic climate and log increased revenues this year.
Aug. 10, 2023
Photo 1. This bearing was relubricated with an excessive quantity of grease.
Motors
Best Practices for Electric Motor Bearing Relubrication
Optimize the lifetime and performance of machines through proper relubrication frequency and quantity.
Aug. 10, 2023
Fig. 1. A motor branch-circuit OCPD must be able to carry the motor’s starting current.
Code Basics
NEC Requirements for Motors – Part 2 of 2
Do you know how to protect motors and related equipment from overcurrent and ground faults?
Aug. 9, 2023
Fig. 1. Examples of EMT uses not permitted by the NEC.
Q&A
Stumped by the Code? NEC Requirements for Using and Installing EMT
Answering your NEC questions
Aug. 9, 2023
gas piping used as wiring
Violations
Illustrated Catastrophes: A Creative Wiring Solution
See the latest Code violations from NEC Consultant Russ LeBlanc.
July 25, 2023
too many electrical wires
What's Wrong Here?
What's Wrong Here? Hint: A Five-For-One Special
Can you spot the Code violation in this photo?
July 25, 2023
electric space-heating cable installation
National Electrical Code
Practically Speaking: Panelboard Versus Panelboard Enclosure
Should labels really be installed on the panelboard itself?
July 25, 2023
