  In this paper the scaling law for the relaxation times in thermal phenomena
is investigated. It is shown that dependent on the value of the parameter
K=E/m(c\alpha)^2,where E is the energy which is delivered to the system, m is
the parton mass and \alpha=1/137 for electromagnetic interaction and
\alpha=0.16 for strong interaction respectively, heat transport is diffusive,
for K<1, or contains the wave component for K>1. For the system with N partons
the relaxation time is scaled as \tau^N\to N (\hbar/(mc\alpha)^2).
  Key words: Thermal phenomena, scaling
