This part of DIN EN 60519 (VDE 0721-4) series is applicable to electroheating installations such as:
1. Furnaces for direct arc heating, forming arcs between the electrode and metal such as the electric arc furnace using alternating current (EAFac) or direct current (EAFdc), and ladle furnace (LF);
2. Furnaces for arc-resistance heating forming arcs between the electrode and the charge material or heating the charge material by the Joule effect, such as the submerged arc furnaces using alternating current (SAFac), or direct current (SAFdc).
The object of this standard is to specify particular safety requirements for electric arc furnaces.