12.7. How to Install Electrical Wiring: Installation Testing and Verification

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12.7. How to Install Electrical Wiring: Installation Testing and Verification

Installing electrical wiring is a crucial step in building a home. It is a complex process that requires technical knowledge, precision and safety. In this chapter, we will discuss how to install electrical wiring, perform tests and verify the installation.

Installation of electrical wiring

Before starting the installation of electrical wiring, it is essential to have a detailed plan of the arrangement of light points, switches and sockets. This plan must be prepared by a qualified professional, such as an electrical engineer, to ensure that the installation complies with safety regulations.

First, the cables must be routed through conduits, which are PVC pipes installed in the walls and ceiling, designed to protect the wiring. Choosing the right cable depends on the electrical load that will be supported. For example, for general purpose lighting and sockets, a 2.5mm cable is usually sufficient.

Once the cables are routed, they must be connected to the circuit breakers in the electrical panel. Each breaker controls a specific circuit in the house, such as lighting or outlets in a certain area. It is important that each circuit is correctly identified on the electrical panel to facilitate future maintenance.

Electrical installation tests

After installing the electrical wiring, it is essential to perform tests to ensure that everything is working properly. Tests should be performed by a qualified electrician who has the necessary equipment and knowledge to interpret the results.

The first test is the continuity test, which verifies that electrical current can flow through the circuit. This test is performed with a multimeter, which is connected to each end of the circuit. If the multimeter indicates a resistance close to zero, this means that current can flow freely, indicating that the installation is correct.

The second test is the insulation test, which verifies that the wiring is properly insulated to prevent electrical shock. This test is performed by applying a high voltage between the wiring and ground. If current flows to ground, the insulation is compromised and the installation is unsafe.

Checking the electrical installation

After carrying out the tests, the electrical installation must be checked to ensure that it complies with the original plan and with safety standards. This includes verifying that all switches, outlets and light points are in the correct location and working properly.

In addition, it is important to verify that the electrical panel is correctly identified and that the circuit breakers are properly sized for the load they will support. Finally, the installation should be inspected to verify that all cables are properly protected and insulated.

In conclusion, installing electrical wiring is a complex task that requires technical knowledge and attention to detail. However, with careful planning and proper testing and verification, you can ensure a safe and efficient installation.

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5012.8. How to install electrical wiring: Safety rules and regulations