Back

EVS-EN 50124-1:2017

Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and creepage distances for all electrical and electronic equipment

General information
Valid from 04.04.2017
Base Documents
EN 50124-1:2017
Standard history
Status
Date
Type
Name
04.04.2017
Main
04.08.2010
Corrigendum
10.08.2005
Amendment
09.02.2004
Amendment
01.10.2002
Main
This part EN 50124 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 term equipment relates to a section as defined in 3.3 it may apply to a system, a sub-system, an apparatus, a part of an apparatus, or a physical realisation of an equipotential line. This standard does not deal with: distances through solid or liquid insulation; distances through gases other than air; distances through air not at atmospheric pressure; equipment used under extreme conditions. Product standards have to align with this generic standard. However, they may require, with justification, different requirements due to safety and/or reliability reasons, e.g. for signalling, and/or particular operating conditions of the equipment itself, e. g. overhead contact lines which have to comply to EN 50119. This standard also gives provisions for dielectric tests (type tests or routine tests) on equipment (see Annex B). NOTEFor safety critical systems, specific requirements are needed. These requirements are given in the product specific signalling standard EN 50129.
*
*
*
PDF
21.60 € incl tax
Paper
21.60 € incl tax
Price: 2.40 € incl tax
Standard monitoring
Customers who bought this item also bought
Main

EVS-EN 50124-2:2017

Railway applications - Insulation coordination - Part 2: Overvoltages and related protection
Newest version Valid from 04.04.2017
Main

EVS-EN 50125-1:2014

Railway applications - Environmental conditions for equipment -- Part 1: Rolling stock and on-board equipment
Newest version Valid from 06.05.2014
Main

EVS-EN 50126-1:2017

Railway applications - The Specification and Demonstration of Reliability, Availability, Maintainability and Safety (RAMS) - Part 1: Generic RAMS process
Newest version Valid from 01.11.2017
Main

EVS-EN 50126-2:2017

Railway Applications - The Specification and Demonstration of Reliability, Availability, Maintainability and Safety (RAMS) - Part 2: Systems Approach to Safety
Newest version Valid from 01.11.2017