  We suggest an infinite-dimensional extension of the gauge transformations
which includes non-Abelian tensor gauge fields. Extended gauge transformations
of non-Abelian tensor gauge fields form a new large group which has natural
geometrical interpretation it terms of extended current algebra associated with
compact Lie group. We shall demonstrate that one can construct two infinite
series of gauge invariant quadratic forms, so that a linear combination of them
comprises the general Lagrangian. The general Lagrangian exhibits enhanced
local gauge invariants with double number of gauge parameters and allows to
eliminate all negative norm states of the nonsymmetric second-rank tensor gauge
field. Therefore it describes two polarizations of helicity-two and
helicity-zero massless charged tensor gauge bosons.
