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NOTE: This is an unformatted excerpt from our online fire protection training library.

Supervisory Initiating Devices

Electric Fire Pumps


Supervisory signals from an electric fire pump include loss of electric power, pump running, and electrical phase reversal. Phase reversal supervision is the result of incidents where work on the electrical supply ended with the phases of the electrical supply being reconnected in a different configuration than the original connection. Reversing the phases of the electrical power results in the electric motor running backwards.  This can cause severe damage to the pump itself.
NOTE: This is an unformatted excerpt from our online fire protection training library.

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