Definition - What does Anode Bed mean?
An anode bed is a series of electrodes installed in an electrolytic environment to provide cathode protection against corrosion by serving as an electrolytic cell component.
Corrosionpedia explains Anode Bed
Anode beds serve as a key component of an electrolytic cell, which aid the free flow of electrons by acting as a terminal for current entry. Current that is attracted to the electrolytic cell is not available to react with a metal structure in the environment, thus preventing corrosion of said metal structure.