Know when to use a Class I DPS

Specialist José Barbosa explains how DPS class 1 is used and how to apply it for each class
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This surge protection device is characterized by its ability to withstand impulsive currents with waveforms of 10/350 µs, which simulate the direct impact of natural lightning currents. Type 1 DPSs are located at the entrance to the installation, in the network distribution panel, for global protection of the installation.

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  1. DPS don't have to be connected to earth??? How am I going to connect the dps to the inverter's DC input and the inverter's AC input??? Can you show a three-phase version of this connection?

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