C.T.E. specializes in “POWER LINES” sector within all types of work that distinguish it: in addition to the high and very high voltage lines, medium voltage lines (between 10 and 20 kV) and low lines voltage (less than 1000 V, normally 400 V) , processing plants aT / MT (primary stations) and transformers on poles or substations in medium voltage (secondary stations), disconnectors and switches.