Electrical Troubleshooting Quiz - April 18, 2017 stuartmiles99/iStock/Thinkstock

Electrical Troubleshooting Quiz - April 18, 2017

Discovering the cause of LED light source failure.


The plant manager of a multi-building manufacturing facility had the maintenance department replace the existing lighting system in one building with all LED. The energy savings, despite being significant, were only one factor in this decision. The primary rationale behind this was to eliminate re-lamping, since that often interfered with production.

Unfortunately, the system has experienced light source failure several times since being installed. The luminaires ar

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