𧰠What Is Insulation Resistance Testing? Insulation Resistance (IR) testing is a fundamental, non-destructive diagnostic method used to assess the quality of electrical insulation. This is commonly performed on cables, transformers, motors, and switchgear. A megohmmeter (or âmeggerâ) applies a high DC voltage to measure leakage current, which is used to calculate resistance (R = […]
NETA standards give facility owners an independent, consistent way to prove electrical equipment is safe and ready for service. This guide explains what NETA is, what its testing covers, and how to choose a qualified provider. What is NETA? The InterNational Electrical Testing Association (NETA) was founded in 1972. It develops the ANSI/NETA standards for […]
What is SF6? It’s an inert, colorless, odorless and non-flammable gas.  Sulfur hexafuoride is about 5 times denser than air, meaning it’s heavier. If you were to fill a fish tank with SF6, you could treat the gas as if you were pouring water into a fish tank. It will collectively stay within the fish tank. It is […]
Before we can begin to talk about “Acceptance Testing”, you may or may not understand the phrase. Acceptance Testing pertains to all new electrical components. These are either purchased from a distributor, or even a manufacturer, but have never been put into “service”, i.e. energized. When a building is being remodeled, or even rebuilt, a […]