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About This Item
Full Description
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.
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.
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 should comply with EN 50119.
This standard also gives provisions for dielectric tests (type tests or routine tests) on equipment (see Annex B).
NOTE For safety critical systems, specific requirements are needed. These requirements are given in the product specific signalling standard EN 50129.
Cross References:
EN 50123
EN 50163
EN 60060-1
IEC 60060-1
EN 60071-1
IEC 60071-1
EN 60112
IEC 60112
EN 60587
IEC 60587
EN 60664-1:2007
IEC 60664-1:2007
2008/57/EC
EN 50121
EN 50125
EN 50129
EN 50152
EN 50153
EN 60071-2
IEC 60071-2
EN 60077-1
IEC 60077-1
EN 60099-1
IEC 60099-1
EN 60099-4
IEC 60099-4
EN 60168
IEC 60168
EN 60364
IEC 60364
EN 60383-1
IEC 60383-1
EN 60383-2
IEC 60383-2
EN 60507
IEC 60507
EN 60529
IEC 60529
EN 60660
IEC 60660
EN 60664-3
IEC 60664-3
EN 60664-5
IEC 60664-5
EN 60947-1
IEC 60947-1
EN 61109
IEC 61109
IEC 61245
EN 61558
IEC 61558
EN 61936-1
IEC 61936-1
EN 62271-1
IEC 62271-1
IEC/TR 60099-3
IEC 60664-2-1
IEC/TR 60815:1986
IEC/TS 60815
EN 50119
All current amendments available at time of purchase are included with the purchase of this document.
Document History
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BS EN 50124-1:2017
viewing
Railway applications. Insulation coordination-Basic requirements. Clearances and creepage distances for all electrical and electronic equipment- Most Recent
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BS EN 50124-1:2001+A2:2005
Railway applications. Insulation coordination-Basic requirements. Clearances and creepage distances for all electrical and electronic equipment- Historical Version
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BS EN 50124-1:2001
Railway applications. Insulation coordination. Basic requirements. Clearances and creepage distances for all electrical and electronic equipment- Historical Version