Ηλεκτρικές εγκαταστάσεις κτιρίων - Μέρος 4: Μέτρα προστασίας για ασφάλεια - Κεφάλαιο 43: Προστασία έναντι υπερεντάσεων

Is divided into the clauses 431 to 436 which deals mainly with devices ensuring protection against overload current and short circuit, with the co-ordination between conductors and protective devices, with the characteristics of short-circuit protective devices, with the co-ordination of overload and short-circuit protection and with the limitation of overcurrent by characteristics of supply.