Hot Spots on Energized Switches: What They Signal, What Causes Them, and What Utilities Can Do With

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Hot spots on energized switches are often treated as isolated temperature issues, but in reality, they can be early warning signs of deeper mechanical, environmental, and lubrication-related problems. Left unaddressed, these issues can lead to unreliable switching, increased operating force, longer work windows, and higher risk in the field.

In this webinar, we’ll walk through what hot spots actually signal, the most common causes utilities see in the field, and how to evaluate when an issue can be addressed safely as part of an energized mitigation workflow versus when it truly requires an outage. Attendees will leave with a practical, field-tested framework they can apply immediately to improve reliability, reduce repeat issues, and make more informed maintenance decisions.

Learning Objectives:

What hot spots really indicate beyond temperature—and why they shouldn’t be ignored
The most common causes of hot spots on energized switches, including mechanical resistance, contamination, corrosion, and lubrication breakdown
Early warning signs crews can recognize in the field before issues escalate
How to evaluate the decision point between energized mitigation and scheduling an outage
A practical Identify → Verify → Stabilize → Prevent framework utilities can use to manage hot spot issues
Maintenance best practices that reduce repeat problems, including lubrication standardization and simple record-keeping
How utilities can improve long-term switch reliability without increasing safety exposure or operational disruption
Attendees will gain a clearer understanding of how to interpret hot spots on energized switches and how to respond with practical, repeatable maintenance approaches that reduce risk, downtime, and unnecessary outages.