Replacing or Upgrading Water-Damaged Electrical Equipment

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NEMA’s Evaluating Water-Damaged Electrical Equipment, first published in 2004, contains excellent reference material to evaluate electrical equipment that has been exposed to water through flooding, firefighting activities, hurricanes, and other circumstances.

The document provides a table summarizing recommended actions for various types of electrical equipment to determine whether they need to be replaced or reconditioned. New technological solutions have been developed that provide a third option: the core device (e.g., power circuit breaker, motor control center enclosure) is replaced with an upgraded device that matches the original equipment’s mechanical and electrical interfaces. The upgraded device is consistent with new equipment standards and technological advancements without disturbing the primary enclosure, incoming and outgoing cable connections, or operating controls.

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