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Testing & Maintenance Standards

A Closer Look into the True Cost of Replacing Electrical Switchgear

During my switchgear modernization presentations all over the US, I am constantly reminded of the concerns customers face with their aging electrical infrastructure. For the most part, these center around safety, reliability and productivity: Replacements parts are very hard (or impossible) to...
Home Testing Testing & Maintenance

Testing & Maintenance

Understanding the DC Overpotential Test

The 411 on DC testing of low-voltage circuit breakers

BY JIM WHITE, Shermco Industries, Inc.

The direct current (DC) overpotential test is one of the basic tests conducted to ensure an insulation system has adequate insulation life to make it to the next scheduled maintenance interval. While not a difficult test to perform, the test equipment used could have some serious deficiencies that may not be discovered unless the technician knows how to verify test...

Testing & Maintenance Articles

T&D Buyer’s Guide Companies

Testing & Maintenance Videos

AreaMax: Utility-Grade LED Area Lighting

Congeal and Seal - How Albarrie's Unique Polymer Blend Reacts To Hydrocarbons

Bearing Toolbox for Advanced Bearing Failure Analysis

Testing & Maintenance Products

DDIN Midsize Clipping Hook

LUBExpert On-GUARD

Cut-Resistant and Puncture-Resistant Gloves

Testing & Maintenance Shared Media

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Arc Flash Electrical Safety handbook Vol.11

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Tallman Equipment Line Card

Catalog

Electricity Today T&D Magazine – Intelligent Transformers & Substations Special Edition