CME is unquestionably the leading Portuguese company operating in the area of electrical engineering.

In the scope of this activity, CME has introduced in Portugal the technology of Live line maintenance works (in high and very high voltage).

The solid experience of CME and the quality of execution it confers to its achievements are critical factors of success which have allowed for the company to consolidate even more its position as leader of this market.

In the scope of the electricity activity, CME undertakes projects, installation, supply and maintenance, in the following areas:


. High and very high voltage lines - 400, 220 and 150 kV
. Substations - 400, 220, 150 and 60 kV
. Low, medium and high voltage networks - 220 and 60 kV
. Live Works in low, medium, high and very high voltage - 400, 220, 150, 60, 30, 15, 10, 6  and 0,4kV
. Transformer post maintenance
. HV/MV/LV distribution
. Industrial electrical installations
. Command and control installations
. Security and alarm systems installations
. Access controls
. Instrumentation and control systems