Skip to content
Please enter a keyword to search

  • BS EN 50122-1 : 2011

    Current The latest, up-to-date edition.

    RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRICAL SAFETY, EARTHING AND THE RETURN CIRCUIT - PART 1: PROTECTIVE PROVISIONS AGAINST ELECTRIC SHOCK

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2011

    Publisher:  British Standards Institution

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Contact line zone and current collector zone
    5 Protective provisions against direct contact
    6 Protective provisions against indirect contact
       and impermissible rail potential
    7 Protective provisions for low voltage non
       traction power supplies
    8 Protective provisions where track systems,
      which are utilized for carrying traction return
       current, or/and contact line systems pass
       through hazardous zones
    9 Limits for touch voltage and protection against
       the danger of rail potential
    10 Additional protective provisions
    Annex A (informative) - Typical obstacles
    Annex B (normative) - Warning sign
    Annex C (informative) - Guiding values for rail
            potential gradient
    Annex D (informative) - Effective touch voltage
            and body voltage with respect to the body
            current
    Annex E (normative) - Measurement methods for
            effective touch voltages
    Annex F (normative) - The use of voltage-limiting devices
    Annex G (normative) - Special national conditions
    Bibliography
    Annex ZZ (informative) - Relationship between this
             European Standard and the Essential
             Requirements of EU Directive 2008/57/EC

    Abstract - (Show below) - (Hide below)

    Defines requirements for the protective provisions relating to electrical safety in fixed installations associated with a.c. and/or d.c. traction systems and to any installations that can be endangered by the traction power supply system.

    General Product Information - (Show below) - (Hide below)

    Committee GEL/9/3
    Development Note Supersedes 94/200413 DC. (09/2005) Supersedes 08/30160532 DC. (06/2011) Supersedes 15/30327969 DC. (02/2016) 2011 Edition Re-Issued in February 2017 & incorporates AMD 4 2017. (03/2017)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 7430(2011) : 2011 CODE OF PRACTICE FOR PROTECTIVE EARTHING OF ELECTRICAL INSTALLATIONS
    ENA ER G12 : ISSUE 4 AMD 1 2015 REQUIREMENTS FOR THE APPLICATION OF PROTECTIVE MULTIPLE EARTHING TO LOW VOLTAGE NETWORKS
    11/30249994 DC : DRAFT JULY 2011 BS 7430 - CODE OF PRACTICE FOR PROTECTIVE EARTHING OF ELECTRICAL INSTALLATIONS
    07/30130630 DC : 0 BS 7430 - CODE OF PRACTICE FOR EARTHING

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 61219:1993 Live working - Earthing or earthing and short-circuiting equipment using lances as a short-circuiting device - Lance earthing
    ISO 7010:2011 Graphical symbols Safety colours and safety signs Registered safety signs
    IEC TS 60479-1:2005+AMD1:2016 CSV Effects of current on human beings and livestock - Part 1: Generalaspects
    IEC 60050-811:1991 International Electrotechnical Vocabulary (IEV) - Part 811: Electric traction
    IEC 60050-195:1998 International Electrotechnical Vocabulary (IEV) - Part 195: Earthing and protection against electric shock
    EN 61219:1993 Live working - Earthing or earthing and short-circuiting equipment using lances as short-circuiting device - Lance earthing
    IEC 60364-4-41:2005+AMD1:2017 CSV Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
    HD 60364-4-41:2017/A11:2017 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 4-41: PROTECTION FOR SAFETY - PROTECTION AGAINST ELECTRIC SHOCK
    EN 50153 : 2014 AMD 1 2017 RAILWAY APPLICATIONS - ROLLING STOCK - PROTECTIVE PROVISIONS RELATING TO ELECTRICAL HAZARDS
    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 50122-3:2010 Railway applications - Fixed installations - Electrical safety, earthing and the return circuit - Part 3: Mutual Interaction of a.c. and d.c. traction systems
    HD 637 S1:1999/corrigendum:2005 POWER INSTALLATIONS EXCEEDING 1 KV A.C.
    2008/57/EC : 2008 AMD 5 2014 DIRECTIVE 2008/1957/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL OF 17 JUNE 2008 ON THE INTEROPERABILITY OF THE RAIL SYSTEM WITHIN THE COMMUNITY (RECAST) (TEXT WITH EEA RELEVANCE)
    IEC 61558-2-6:2009 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V - Part 2-6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers
    IEC 60050-551:1998 International Electrotechnical Vocabulary (IEV) - Part 551: Power electronics
    IEC 60050-442:1998 International Electrotechnical Vocabulary (IEV) - Part 442: Electrical accessories
    IEC 60364-1:2005 Low-voltage electrical installations - Part 1: Fundamental principles, assessment of general characteristics, definitions
    EN 50124-1:2017 Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and creepage distances for all electrical and electronic equipment
    IEC 60050-101:1998 International Electrotechnical Vocabulary (IEV) - Part 101: Mathematics
    EN 50119 : 2009 AMD 1 2013 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRIC TRACTION OVERHEAD CONTACT LINES
    IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
    EN 50345:2009 Railway applications - Fixed installations - Electric traction - Insulating synthetic rope assemblies for support of overhead contact lines
    EN 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
    IEC 60050-821:1998 International Electrotechnical Vocabulary (IEV) - Part 821: Signalling and security apparatus for railways
    EN 50163 : 2004 COR 2013 RAILWAY APPLICATIONS - SUPPLY VOLTAGES OF TRACTION SYSTEMS
    EN 60898-1:2003/A13:2012 ELECTRICAL ACCESSORIES - CIRCUIT BREAKERS FOR OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR INSTALLATIONS - PART 1: CIRCUIT-BREAKERS FOR A.C. OPERATION (IEC 60898-1:2002, MODIFIED)
    ISO 3864-1:2011 Graphical symbols Safety colours and safety signs Part 1: Design principles for safety signs and safety markings
    IEC 60898-1:2015 Electrical accessories - Circuit-breakers for overcurrent protection for household and similar installations - Part 1: Circuit-breakers for a.c. operation
    IEC 60050-826:2004 International Electrotechnical Vocabulary (IEV) - Part 826: Electrical installations
    EN 50388 : 2012 COR 2013 RAILWAY APPLICATIONS - POWER SUPPLY AND ROLLING STOCK - TECHNICAL CRITERIA FOR THE COORDINATION BETWEEN POWER SUPPLY (SUBSTATION) AND ROLLING STOCK TO ACHIEVE INTEROPERABILITY
    EN 61140:2016 Protection against electric shock - Common aspects for installation and equipment
    EN 61558-2-6:2009 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V - Part 2-6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers
    IEC 60050-111:1996 International Electrotechnical Vocabulary (IEV) - Part 111: Physics and chemistry
    EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
    IEC 61140:2016 Protection against electric shock - Common aspects for installation and equipment
    IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
    EN 60898-1:2003/A13:2012 ELECTRICAL ACCESSORIES - CIRCUIT BREAKERS FOR OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR INSTALLATIONS - PART 1: CIRCUIT-BREAKERS FOR A.C. OPERATION (IEC 60898-1:2002, MODIFIED)
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective