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St. Elmo’s Fire and Partial Discharge Or how to inspect for...

The risk of fault within switchgear increases with voltage. To protect against this, manufacturers are focusing more on the design of switchgear and the...

Articles 695, 700, 701 and 702 for Combination Inspectors

Continuing with our journey through the National Electrical Code (NEC), let’s skip to Article 695 Fire Pumps. I am not going to cover Article...

Articles 408 and 409 — Switchboards, Panelboards, and Industrial Control Panels

How much do you know about Articles 408 and 409? From my experience, this question often results in a long pause, and then perhaps...

Procedures for Inspecting Switchgear

What’s big, gray, and should be approached carefully? If you answered "an elephant,” why are you reading an electrical book? If you answered "switchgear,”...
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