Sub Articulo 43.4
Those are two entirely different packages.
\usepackage{t1enc} is an obsolete version of
\uespackage[T1]{fontenc}
Font encodings determine what characters in the fonts exist and thus
what kind of words stand a chance of correct hyphenation.
Input encodings describe how the source file presents special
characters. Both are pretty much orthogonal.
You might want to try in addition to [T1]{fontenc} the ae package
which will use the normal cmr fonts in T1 encoding via virtual fonts,
thus yielding correct hyphenation.