DIN EN 50124-1:2017-12

This European Standard deals with insulation coordination in railways. It applies to equipment for use in signalling, rolling stock and fixed installations. Insulation coordination is concerned with the selection, dimensioning and correlation of insulation both within and between items of equipment. In dimensioning insulation, electrical stresses and environmental conditions are taken into account. For the same conditions and stresses, these dimensions are the same. An objective of insulation coordination is to avoid unnecessary over dimensioning of insulation. This standard specifies: - requirements for clearances and creepage distances for equipment; - general requirements for tests pertaining to insulation coordination. The responsible committee is DKE/K 351 "Elektrische Ausrüstungen für Bahnen" ("Electrical applications for railways") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.