  We consider a nonstationary array of conductors, connected by resistances
that fluctuate with time. The charge transfer between a particular pair of
conductors is supposed to be dominated by "electrical breakdowns" -- the
moments when the corresponding resistance is close to zero. An amount of
charge, transferred during a particular breakdown, is controlled by the
condition of minimum for the electrostatic energy of the system. We find the
conductivity, relaxation rate, and fluctuations for such a system within the
"classical approximation", valid, if the typical transferred charge is large
compared to $e$. We discuss possible realizations of the model for colloidal
systems and arrays of polymer-linked grains.
