Противопожарное УЗО - нужно ли оно? #энерголикбез

Everyone knows that residual-current devices (RCDs) protect people from injury from indirect contact with live electrical components. But an equally important feature of RCDs is their ability to protect against fires that occur at facilities due to insulation damage, faulty wiring, and electrical equipment. More than a third of all fires are caused by electrical wiring fires caused by overheating conductors, sparking from poor electrical connections, current leakage due to contamination, dust from uninsulated circuit sections, or an electric arc in some part of the circuit caused by a short-circuit current. It is precisely to prevent such processes that fire-fighting RCDs with a setting of 100 or 300 mA are installed. These devices will de-energize the network even in the event of normal leaks, but they are not designed to fully protect people from injury from indirect contact.