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  • BSI
    20/30430763 DC BS EN 50122-3. Railway applications. Fixed installations. Electrical safety, earthing and the return circuit - Part 3. Mutual Interaction of AC and DC traction systems
    Edition: 2020
    $42.22
    / user per year

Description of 20/30430763 DC 2020

This document specifies requirements for the protective provisions relating to electrical safety in fixed in-stallations, when it is reasonably likely that hazardous voltages or currents will arise for people or equip-ment, as a result of the mutual interaction of AC and DC electric power supply traction systems. It also applies to all aspects of fixed installations that are necessary to ensure electrical safety during maintenance work within electric power supply traction systems. The mutual interaction can be of any of the following kinds: — parallel running of AC and DC electric traction power supply systems; — crossing of AC and DC electric traction power supply systems; — shared use of tracks, buildings or other structures; — system separation sections between AC and DC electric power supply traction systems. The scope is limited to basic frequency voltages and currents and their superposition. This document does not cover radiated interferences. This document applies to all new lines, extensions and to all major revisions to existing lines for the follow-ing electric power supply traction systems: a) railways; b) guided mass transport systems such as: 1) tramways, 2) elevated and underground railways, 3) mountain railways, 4) trolleybus systems, and 5) magnetically levitated systems, which use a contact line system; c) material transportation systems. The document does not apply to: d) electric traction power supply systems in underground mines; e) 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; f) suspended cable cars; g) funicular railways; h) procedures or rules for maintenance. The rules given in this document can also be applied to mutual interaction with non-electrified tracks, if haz-ardous voltages or currents can arise from AC or DC electric traction power supply systems.

Standard Number20/30430763 DC
TitleBS EN 50122-3. Railway applications. Fixed installations. Electrical safety, earthing and the return circuit - Part 3. Mutual Interaction of AC and DC traction systems
StatusDefinitive
Publication Date2020-11-27
Identical National Standard OfprEN 50122-3
DescriptorsRailway fixed equipment, Alternating current, Electrical safety, Direct current, Railway equipment, Voltage, Electric power systems, Earthing, Circuits, Electric power distribution, Railway electric traction equipment
ICS29.120.50 Fuses and other overcurrent protection devices, 29.280 Electric traction equipment
CommitteeGEL/9/3
PublisherBSI
Pages30

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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