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  • BS 7430(2011) : 2011

    Current The latest, up-to-date edition.

    CODE OF PRACTICE FOR PROTECTIVE EARTHING OF ELECTRICAL INSTALLATIONS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2011

    Publisher:  British Standards Institution

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

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Earthing principles
    5 HV/LV interface
    6 Low voltage installations
    7 Generators
    8 Special installations
    9 Earth electrode systems
    10 Inspection and testing of the earthing system
    Annexes
    Annex A (informative) - Guidance on typical HV/LV
            interfaces
    Annex B (informative) - Typical simple installation
            of an earthing system for a small LV substation
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines recommendations and guidance on meeting the requirements for the earthing of electrical installations, including: a) protective earthing of low voltage installations to BS 7671:2008+A3:2015; b) the interface between LV and HV substations of 11000/400 V to BS EN 61936-1:2010+A1:2014 within buildings; and c) protective earthing and changeover switch arrangements for generators supplying low voltage installations.

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

    Committee GEL/600
    Development Note Supersedes BS 7430(1998). (12/2011) Supersedes 11/30249994 DC. (01/2012) 2011 Edition Re-Issued in August 2015 & incorporates AMD 1 2015. Supersedes 15/30322343 DC. (09/2015)
    Document Type Standard
    Publisher British Standards Institution
    Status Current

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

    BS EN 10088-1:2014 Stainless steels List of stainless steels
    BS EN 12165:2011 Copper and copper alloys. Wrought and unwrought forging stock
    BS EN 12167:2011 Copper and copper alloys. Profiles and bars for general purposes
    BS EN 61936-1 : 2010 POWER INSTALLATIONS EXCEEDING 1 KV A.C - PART 1: COMMON RULES
    BS EN 1011-4:2000 Welding. Recommendations for welding of metallic materials Arc welding of aluminium and aluminium alloys
    BS EN 586-2:1994 Aluminium and aluminium alloys. Forgings Mechanical properties and additional property requirements
    BS 1473:1955 Specification for wrought aluminium and aluminium alloys for general engineering purposes - rivet, bolt & screw stock for forging.
    BS EN 13601:2013 Copper and copper alloys. Copper rod, bar and wire for general electrical purposes
    BS 2871-1:1971 Specification for copper and copper alloys. Tubes Copper tubes for water, gas and sanitation
    BS EN 61140 : 2002 PROTECTION AGAINST ELECTRIC SHOCK - COMMON ASPECTS FOR INSTALLATION AND EQUIPMENT
    BS EN 10025-2:2004 Hot rolled products of structural steels Technical delivery conditions for non-alloy structural steels
    BS EN 60228:2005 Conductors of insulated cables
    BS EN 10263-4:2001 Steel rod, bars and wire for cold heading and cold extrusion Technical delivery conditions for steels for quenching and tempering
    BS EN 62305-2:2012 Protection against lightning Risk management
    BS EN 62305-3:2011 Protection against lightning Physical damage to structures and life hazard
    BS 7671(2008) : 2008 REQUIREMENTS FOR ELECTRICAL INSTALLATIONS - IET WIRING REGULATIONS
    BS EN 50122-1 : 2011 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRICAL SAFETY, EARTHING AND THE RETURN CIRCUIT - PART 1: PROTECTIVE PROVISIONS AGAINST ELECTRIC SHOCK
    BS EN 50522:2010 Earthing of power installations exceeding 1 kV a.c.
    BS EN 1780-1:2002 Aluminium and aluminium alloys. Designation of unalloyed and alloyed aluminium ingots for remelting, master alloys and castings Numerical designation system
    BS 7454(1991) : 1991 METHOD FOR CALCULATION OF THERMALLY PERMISSIBLE SHORT-CIRCUIT CURRENTS, TAKING INTO ACCOUNT NON-ADIABATIC HEATING EFFECTS
    BS EN 1652:1998 Copper and copper alloys. Plate, sheet, strip and circles for general purposes
    ISO/IEC Guide 51:2014 Safety aspects Guidelines for their inclusion in standards
    BS 1377-3:1990 Methods of test for soils for civil engineering purposes Chemical and electro-chemical tests
    BS EN ISO 1461:2009 Hot dip galvanized coatings on fabricated iron and steel articles. Specifications and test methods
    BS 2873:1969 Specification for copper and copper alloys. Wire
    BS IEC 60050-195:1998 International electrotechnical vocabulary Earthing and protection against electric shock
    BS EN ISO 1460:1995 Metallic coatings. Hot dip galvanized coatings on ferrous materials. Gravimetric determination of the mass per unit area
    IEC GUIDE 104:2010 The preparation of safety publications and the use of basic safety publications and group safety publications
    BS EN 14505:2005 Cathodic protection of complex structures
    BS EN 1561:2011 Founding. Grey cast irons
    BS EN 50122-2:2010 Railway applications. Fixed installations. Electrical safety, earthing and the return circuit Provisions against the effects of stray currents caused by d.c. traction systems
    BS EN 62040-1-2:2003 Uninterruptible power systems (UPS) General and safety requirements for UPS used in restricted access locations
    BS 2871-2:1972 Specification for copper and copper alloys. Tubes Tubes for general purposes
    BS EN 12449:2016 Copper and copper alloys. Seamless, round tubes for general purposes
    IEC 60909:1988 Short-circuit current calculation in three-phase a.c. systems
    BS 215-2:1970 Specification for aluminium conductors and aluminium conductors, steel-reinforced for overhead power transmission Aluminium conductors, steel-reinforced
    BS EN 1982:2017 Copper and copper alloys. Ingots and castings
    BS EN 1562:2012 Founding. Malleable cast irons
    BS EN 485-2:2013 Aluminium and aluminium alloys. Sheet, strip and plate Mechanical properties
    BS EN 755-2:2016 Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles Mechanical properties
    BS 2871-3:1972 Specification for copper and copper alloys. Tubes Tubes for heat exchangers
    BS EN 12420:2014 Copper and copper alloys. Forgings
    BS EN 88528-11:2004 Reciprocating internal combustion engine driven alternating current generating sets Rotary uninterruptible power systems. Performance requirements and test methods
    BS EN 12163:2011 Copper and copper alloys. Rod for general purposes
    BS EN 60335-1 : 2012 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 1: GENERAL REQUIREMENTS (IEC 60335-1:2010, MODIFIED)
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