1 Scope
This Application Guide supports the European Standards EN 50526‑1 and EN 50526‑2.
Guidance is offered on the following subjects:
-
— the selection and installation of surge arresters;
-
— the selection and installation of voltage limiting devices as VLD-O and VLD-F;
-
— the arrangement of the surge arresters and VLDs.
Because of differences in the established, proven methods, electric traction systems of nominal voltage d.c. 600 V — d.c. 750 V are treated separately from the systems at higher nominal voltages.
This Application Guide only applies to d.c. electrified traction systems