CENELEC
Project
| Reference | EN 50122-2:2010 |
|---|---|
| Title | 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 |
| Project Number | 16590 |
| Abstract/Scope | This European Standard specifies requirements for protective provisions against the effects of stray currents, which result from the operation of d.c. traction systems. As experience for several decades has not shown evident corrosion effects from a.c. traction systems and actual investigations are not completed, this European Standard only deals with stray currents flowing from a d.c. traction system. This European Standard applies to all metallic fixed installations which form part of the traction system, and also to any other metallic components located in any position in the earth, which can carry stray currents resulting from the operation of the railway system. This European Standard applies to all new d.c. lines and to all major revisions to existing d.c. lines. The principles may also be applied to existing electrified transportation systems where it is necessary to consider the effects of stray currents. It provides design requirements to allow maintenance. The range of application includes: 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. This European Standard does not apply to: d) mine traction 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 from the contact line system and are not endangered by the traction power supply system, f) suspended cable cars, g) funicular railways. This European Standard does not specify working rules for maintenance. |
| Status |
Published
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Status
| Current Stage code | 6060 |
|---|---|
| Current Stage code date | 2010-10-15 |
| Current Stage code deadline | 2011-10-01 |
| Deadline date for vote |
Legal
| Directive(s) | HSR (96/48/EC), CONRAIL (2001/16/EC), RAIL (2008/57/EC) |
|---|---|
| Mandate(s) | |
| Order Voucher |
Details
| IEC Technical Body | |
|---|---|
| Reference Document | |
| ICS | 29.120.50 - Fuses and other overcurrent protection devices 29.280 - Electric traction equipment |
| Keywords | Railway; Earthing; Bonding; Stray current; Traction |
| Note | Supersedes EN 50122-2:1998 + corr. Aug.2001 + A1:2002 |
| A-Deviation(s) | |
| Special National Condition(s) |
Environment
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Clause
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Categories - Aspects
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Product Life Cycle
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Information
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History
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Stage
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Date
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Deadline Date
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Documents
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|---|---|---|---|
| 6060 | 2010-10-15 | 2011-10-01 |  EN FR |
| 5099 | 2010-10-01 | 2011-02-01 | |
| 5061 | 2010-08-25 | 2010-10-01 | |
| 5060 | 2010-05-04 | 2010-06-04 | EN |
| 5020 | 2010-02-26 | 2010-04-30 |  EN |
| 4099 | 2009-05-13 | 2010-03-22 | |
| 4060 | 2008-09-30 | 2008-11-04 | EN |
| 4020 | 2008-05-02 | 2008-09-26 | EN |
| 3099 | 2007-12-17 | 2008-05-19 | |
| 3099 | 2007-02-08 | 2007-12-21 | |
| 2020 | 2006-11-24 | 2007-02-28 | |
| 2020 | 2005-11-01 | 2007-02-23 | |
| 2020 | 2004-11-09 | 2005-05-09 | |
| 1000 | 2004-11-01 | 2005-05-01 |
Implementation Dates
| date of Ratification (DOR) (1) | 2010-10-01 |
|---|---|
| date of Availability (DAV) (2) | 2010-10-15 |
| date of Announcement (DOA) (3) | 2011-04-01 |
| date of Publication (DOP) (4) | 2011-10-01 |
| date of Withdrawal (DOW) (5) | 2013-10-01 |
Relations
| Supersedes |
EN 50122-2:1998
EN 50122-2:1998/corrigendum Aug. 2001 EN 50122-2:1998/A1:2002 |
|---|---|
| Superseded by | |
| Normative reference (6) |
(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
