12.4 How to install electrical wiring: Routing cables and conduits

Installing electrical wiring is a crucial step in building a home. It is a process that requires technical knowledge, precision and safety. In this chapter, we will cover the process of running cables and conduits in the house.

Step 1: Planning

Before starting the installation, it is essential to have a detailed plan of where you want the lights, switches, and outlets to be located. This plan will be the guide for the passage of cables and conduits. It is important to remember that the electrical installation must follow the ABNT (Brazilian Association of Technical Standards) standards to ensure the safety of the installation.

Step 2: Choosing Materials

The choice of suitable materials is essential for the safety and efficiency of the electrical installation. Electrical cables must be of good quality and have adequate thickness for the electrical load they will carry. The conduits, which are the tubes through which the cables pass, must be resistant and made of adequate material to protect the cables against physical damage and fire.

Step 3: Installing the Conduits

The installation of conduits is the first physical step of the electrical installation. They are usually installed on walls and floors and must be securely fixed. The installation of the conduits must be done in a way that facilitates the passage of the cables, avoiding sharp curves that could damage the cables.

Step 4: Passing the Cables

After installing the conduits, the electrical cables can be routed. This process must be done carefully to avoid damage to the cables. Cable routing must follow the electrical installation plan, ensuring that each cable reaches its correct destination.

Step 5: Connecting the Cables

Once the cables have been routed, they must be connected to their respective devices such as outlets, switches, and light fixtures. This step must be done very carefully and precisely to ensure a secure and efficient connection. It is important to remember that all connections must be well insulated to avoid electrical shocks.

Step 6: Installation Test

After connecting the cables, the electrical installation must be tested to ensure that it is working correctly. This test should include checking the electrical current, checking the security of the connections, and checking the functionality of the connected devices.

In summary, the installation of electrical wiring is a process that requires technical knowledge, precision and safety. It is a fundamental step in the construction of a house, and it must be done with care and attention to detail. We hope this guide has been helpful in understanding the process of routing cables and conduits in a home's electrical installation.