The electrical installation world is in a phase of significant change, the realization of installations, modifying it goes in the direction of an increasing integration. The electrical installer must be familiar with the rules, must keep abreast of new technologies, it needs to know the proposals of the companies. But above all, it must be able to conceive the system as a system of integrated systems between them. Therefore the newspaper "Electro" is structured in key layman, to illustrate in a practical and concrete everything the installer needs to know the good practice of his daily work, from lighting, home automation, security, control panels.