  In the previously described model of interpreting the numerous results in the
switching states of the conduction in the films of PVC composites [1,2] was
noted the need to involve hopping mechanism and percolation theory to explain
the phenomenon of giant jumps conductivity, just as was done for the
interpretation of such jumps for disordered semiconductor films. It was also
shown that to explain the totality of spontaneous and stimulated transitions
between states of the conduction in PVC composites requires the existence of an
internal process that is able to produce a fixed observable current - voltage
delay and switching electrical conductivity levels lifetime. In this paper one
of the possible relaxation processes that lead to the emergence of the delay
time, and the occurrence of spontaneous and stimulated transitions sample
conductivity of nanocomposites PVC is presented. In particular, as a mechanism
for determining time delay and lifetimes of the conduction states the reaction
of dehydrochlorination is proposed, which should be reversible in case when HCl
molecules separated from macromolecule physically can not "travel" far from
"their place" in the macromolecule, as it just takes place within a local PVC
free volume. In a frame of developed model all previously observed and called
"anomalous" electrical phenomena receive a reasonable and predictable behavior.
