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BS EN 50122-3:2010

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Railway applications. Fixed installations. Electrical safety, earthing and the return circuit Mutual Interaction of a.c. and d.c. traction systems
Available format(s)

Hardcopy , PDF

Superseded date

19-01-2023

Language(s)

English

Published date

31-03-2011

1 Scope
2 Normative references
3 Terms and definitions
4 Hazards and adverse effects
5 Types of mutual interaction to be considered
6 Zone of mutual interaction
7 Touch voltage limits for the combination of alternating
   and direct voltages
8 Technical requirements and measures inside the zone
   of mutual interaction
Annex A (informative) - Zone of mutual interaction
Annex B (informative) - Analysis of combined voltages
Annex C (informative) - Analysis and assessment of mutual
        interaction
Annex ZZ (informative) - Coverage of Essential Requirements
         of EC Directives
Bibliography

Defines requirements for the protective provisions relating to electrical safety in fixed installations, when it is reasonably likely that hazardous voltages or currents will arise for people or equipment, as a result of the mutual interaction of a.c. and d.c. electric traction systems.

This European Standard specifies requirements for the protective provisions relating to electrical safety in fixed installations, when it is reasonably likely that hazardous voltages or currents will arise for people or equipment, as a result of the mutual interaction of a.c. and d.c. electric traction systems. It also applies to all aspects of fixed installations that are necessary to ensure electrical safety during maintenance work within electric traction systems. The mutual interaction can be of any of the following kinds: parallel running of a.c. and d.c. electric traction systems; crossing of a.c. and d.c. electric traction systems; shared use of tracks, buildings or other structures; system separation sections between a.c. and d.c. electric traction systems. Scope is limited to basic frequency voltages and currents and their superposition. This European Standard does not cover radiated interferences. This European Standard applies to all new lines, extensions and to all major revisions to existing lines for the following electric traction systems: railways; guided mass transport systems such as: tramways, elevated and underground railways, mountain railways, trolleybus systems, and magnetically levitated systems, which use a contact line system; material transportation systems. The standard does not apply to: mine traction systems in underground mines; cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly or via transformers from the contact line system and are not endangered by the traction power supply system for railways; suspended cable cars; funicular railways; procedures or rules for maintenance. NOTE The rules given in this European Standard can also be applied to mutual interaction with non-electrified tracks, if hazardous voltages or currents can arise from a.c. or d.c. electric traction systems.

Committee
GEL/9/3
DevelopmentNote
Supersedes 08/30187483 DC. (01/2011)
DocumentType
Standard
Pages
34
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
EN 50122-3:2010 Identical

IEC TS 60479-1:2005+AMD1:2016 CSV Effects of current on human beings and livestock - Part 1: Generalaspects
EN 50122-1:2011/A4:2017 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRICAL SAFETY, EARTHING AND THE RETURN CIRCUIT - PART 1: PROTECTIVE PROVISIONS AGAINST ELECTRIC SHOCK
EN 50122-2:2010 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRICAL SAFETY, EARTHING AND THE RETURN CIRCUIT - PART 2: PROVISIONS AGAINST THE EFFECTS OF STRAY CURRENTS CAUSED BY D.C. TRACTION SYSTEMS
EN 50163 : 2004 COR 2013 RAILWAY APPLICATIONS - SUPPLY VOLTAGES OF TRACTION SYSTEMS
IEC TS 60479-2:2007 Effects of current on human beings and livestock - Part 2: Special aspects

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