Electricity at home

Electricity is transmitted through a network of lines and devices that provide transmission, interconnection and distribution. It ensures that electricity flows from the place of its production to the place of its consumption.
The electricity produced is transmitted to the power plant outputs over long distances through a network of Very High Voltage lines (between 225,000 and 400,000 volts).

The electricity is then directed to transformer stations that transform Very High Voltage into High Voltage (about 90,000 volts) and Medium Voltage (20,000 volts).

The Medium Voltage is then routed to the distribution grid. It can in turn be transformed into Low Voltage (between 230 and 400 volts).

The Low Voltage is then transported to the 30 million Moroccan consumers.

To transport electricity, conductive cables are obviously required. These are generally composed of a metal conductor (copper or, for newer generations, an aluminium alloy), an insulation layer and a protective sheath.

A distinction is made between:

very high voltage lines, used on the main transmission network and supported by electrical pylons.
low and medium voltage lines, used for distribution, and supported by power poles, usually made of wood or concrete.

High, medium or low voltage, for which needs?

• High Voltage: used in the steel industry and railways;
• Medium Voltage: used in large industry;
• Low Voltage: used in small industry, by SMEs and in households.