AFDD ends faults in electrical systems that can cause fires

About 30 percent of fires that occur in residences and living spaces are arc-caused. The automatic fuse and residual current protection relay used in electrical installations do not open the system in case of arc failure and cannot prevent the occurrence of fire. Legrand, who stepped in at this point, prevents bad scenarios that may occur by providing precise and safe protection against serial and parallel arc faults with AFDD with arc fault detection relays microprocessor technology.

In fact, every day we encounter countless reports of fires in the news and newspapers that are said to have originated from the electrical contact. The main cause of these fires, which are stated to arise from the electrical contact, is the arc errors that occur in the electrical system.

If we look at the issue from another point of view, fuses are circuit elements that protect the electrical circuits against short circuit and overload and provide the opening and closing of the circuits they are connected to thanks to their switches. Residual current protection switches work on the basis that the sum of incoming and rotating currents in any electrical installation is zero. In other words, the vector sum of the currents entering the phase and the vector sum of the currents returning from the neutral must be zero.

Arc fault detection relay AFDD working principle...

With this awareness, Legrand undertakes a fundamental task in preventing fires that may occur by detecting the high frequency that occurs during the arc with the help of the electronic circuit in the working principle of the arc fault relay with AFDD with arc fault detection relays microprocessor technology.