Latest Electrical Testing & Maintenance Articles

How to Use a Digital Multimeter

Digital multimeters are used to measure AC and DC voltage, current, and resistance, check continuity, select measurement ranges, and troubleshoot electrical circuits safely and accurately in real-world applications.   Understanding Digital Multimeters Digital multimeters are indispensable tools in electrical work, not because they are complex, but because they allow problems to be isolated quickly when used with judgment. With a wiring diagram and a basic understanding of what the meter is telling you, most faults can be narrowed down without guesswork. The key is not just knowing which function to select, but understanding how the meter interacts with the circuit…
View more

Sign Up for Electricity Forum’s Electrical Testing & Maintenance Newsletter

Stay informed with our FREE Electrical Testing & Maintenance Newsletter — get the latest news, breakthrough technologies, and expert insights, delivered straight to your inbox.

What is a Megohmmeter? A Great Testing Tool

What is a megohmmeter? An insulation resistance tester that applies high DC voltage to measure gigaohms, detect leakage current and dielectric integrity in cables, motors, transformers, and switchgear for safety, commissioning, and preventive maintenance.   What Is a Megohmmeter? What is a megohmmeter, and why should every electrical professional understand its importance? This specialized tool, also known as an insulation resistance tester, is critical for ensuring the safety and reliability of electrical systems in industrial, commercial, and institutional settings. By measuring high resistance values in electrical insulation, it helps detect potential faults, prevent equipment failures, and minimize costly downtime. In…
View more

Industrial Electrical Maintenance Explained

Industrial electrical maintenance ensures the reliability of plant and factory power systems through regular inspections, testing, and repairs. It minimizes downtime, extends equipment life, improves safety, and prevents costly failures in critical industrial operations.   Industrial Electrical Maintenance Explained NFPA 70B Industrial Electrical Maintenance Training Electrical Testing and Troubleshooting Training Request a Free Training Quotation   Industrial electrical maintenance plays a crucial role in ensuring the safety, efficiency, and reliability of industrial facilities. By understanding the key components of a testing and repair program, including preventive maintenance, troubleshooting, equipment maintenance, and the role of automation equipment, companies can develop a robust…
View more

Preventive Maintenance Training: Improving Reliability

Preventive maintenance training equips electrical engineers with CMMS workflows, NFPA 70B procedures, condition monitoring, infrared thermography, power quality analysis, and arc-flash mitigation to improve reliability, reduce downtime, and extend asset life for switchgear and transformers.   Preventive Maintenance Training and Its Impact on Workplace Safety Preventive maintenance training is essential for ensuring the longevity and efficiency of equipment in various industries. This specialized training equips technicians with the knowledge and skills needed to implement effective maintenance strategies, preventing equipment failures and enhancing operational efficiency. In this article, we will explore the importance, topics covered, qualifications, career benefits, and key steps…
View more

Electric Motor Testing Explained

Electric motor testing evaluates performance, insulation resistance, power quality, vibration, efficiency, and overall reliability. These tests detect faults early, prevent costly downtime, and support predictive maintenance for industrial power systems.   Electric Motor Testing Explained: What You Need to Know Why Motor Testing Matters Electric motor testing is often the first thing sacrificed when cutting back on operational expenses. However, smart companies recognize that skipping this step leads to billions of dollars in lost revenue due to increased repair costs, downtime, and wasted resources. Modern maintenance practices sometimes overlook the importance of thorough motor diagnostics; however, examination remains essential for…
View more

NFPA 70B 2023: Electrical Maintenance Standard

NFPA 70B 2023 sets the standard for electrical equipment maintenance, reliability, and predictive testing. It helps facilities improve safety, reduce downtime, and extend asset life through condition-based maintenance programs.   Understanding NFPA 70B 2023 for Compliance with NFPA 70E NFPA 70B 2023 is the essential standard for electrical equipment maintenance, providing comprehensive guidelines to ensure the safety, reliability, and efficiency of electrical systems. Electrical workers must follow the guidance in NFPA 70B to prevent equipment failures, reduce downtime, and minimize the risk of electrical hazards. By adhering to this standard, workers can implement effective maintenance practices that extend the life…
View more

Electrical Insulation Resistance Test Explained

An electrical insulation resistance test measures the effectiveness of electrical insulation in resisting current flow. It helps detect degradation, moisture, or contamination in wiring, motors, and cables to prevent faults, ensure safety, and maintain equipment performance in industrial and commercial systems.   Electrical Insulation Resistance Test Explained Visit Our Electrical Troubleshooting Training Course This test helps identify weaknesses in the insulation that can lead to equipment failure or dangerous faults. With around 80% of maintenance and testing involving evaluating the integrity of insulation, this analysis plays a critical role in maintaining system reliability. In this article, we will explore the…
View more

All Electrical Testing & Maintenance Articles


Download the 2026 Electrical Training Catalog

Explore 50+ live, expert-led electrical training courses –

  • Interactive
  • Flexible
  • CEU-cerified