The electrical installation world is in a period of remarkable change, the construction of the plants, it is changing in the direction of a growing 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 must above all be able to conceive the system as a system of integrated systems between them. Why 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.