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  • EN 62305-2:2012

    Current The latest, up-to-date edition.

    Protection against lightning - Part 2: Risk management

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    Language(s): 

    Published date:  18-05-2012

    Publisher:  European Committee for Standards - Electrical

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

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms, definitions, symbols and abbreviations
    4 Explanation of terms
    5 Risk management
    6 Assessment of risk components
    Annex A (informative) - Assessment of annual
            number N of dangerous events
    Annex B (informative) - Assessment of probability
            P[X] of damage
    Annex C (informative) - Assessment of amount of
            loss L[X]
    Annex D (informative) - Evaluation of costs of loss
    Annex E (informative) - Case study
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC 62305-2:2010(E) is applicable to risk assessment for a structure due to lightning flashes to earth. Its purpose is to provide a procedure for the evaluation of such a risk. Once an upper tolerable limit for the risk has been selected, this procedure allows the selection of appropriate protection measures to be adopted to reduce the risk to or below the tolerable limit. This second edition cancels and replaces the first edition, published in 2006, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: 1) Risk assessment for services connected to structures is excluded from the scope. 2) Injuries of living beings caused by electric shock inside the structure are considered. 3) Tolerable risk of loss of cultural heritage is lowered from 10-3 to 10-4. The value of tolerable risk of loss of economic value (RT = 10-3) is introduced, to be used when data for cost/benefit analysis are not available. 4) Extended damage to surroundings structures or to the environment is considered. 5) Improved equations are provided for evaluation of: - collection areas relevant to flashes nearby a structure, - collection areas relevant to flashes to and nearby a line, - probabilities that a flash can cause damage, - loss factors even in structures with risk of explosion, - risk relevant to a zone of a structure, - cost of loss. 6) Tables are provided to select the relative amount of loss in all cases. 7) Impulse withstand voltage level of equipments was extended down to 1 kV.

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

    Committee CLC/TC 81X
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Current

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

    UNE-EN 61400-24:2011 Wind turbines - Part 24: Lightning protection
    PREN 1127-1 : DRAFT 2017 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    S.R. HD 60364-5-534:2016 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-53: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - ISOLATION, SWITCHING AND CONTROL - CLAUSE 534: DEVICES FOR PROTECTION AGAINST TRANSIENT OVERVOLTAGES
    08/30152055 DC : DRAFT APR 2008 BS EN 50518-1 - MONITORING AND ALARM RECEIVING CENTER - PART 1: LOCATION AND CONSTRUCTION REQUIREMENTS
    09/30198043 DC : 0 BS EN 1127-1 - EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    CEI EN 62305-1 : 2013 PROTECTION AGAINST LIGHTNING - PART 1: GENERAL PRINCIPLES
    BS EN 62305-3:2011 Protection against lightning Physical damage to structures and life hazard
    12/30270980 DC : 0 BS EN 1127-2 - EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
    BS EN 60728-11:2017 Cable networks for television signals, sound signals and interactive services Safety
    17/30365866 DC : 0 BS EN 1127-1 - EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    UNE-EN 1127-1:2012 Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology
    DIN EN 1127-2:2002-07 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
    EN 62305-4:2011/AC:2016 PROTECTION AGAINST LIGHTNING - PART 4: ELECTRICAL AND ELECTRONIC SYSTEMS WITHIN STRUCTURES (IEC 62305-4:2010)
    HD 60364-5-534:2016 Low-voltage electrical installations - Part 5-53: Selection and erection of electrical equipment - Isolation, switching and control - Clause 534: Devices for protection against transient overvoltages
    EN 12186:2014 Gas infrastructure - Gas pressure regulating stations for transmission and distribution - Functional requirements
    PREN 13243 : DRAFT 2013 SAFETY REQUIREMENTS FOR CABLEWAY INSTALLATIONS DESIGNED TO CARRY PERSONS - ELECTRICAL EQUIPMENT OTHER THAN FOR DRIVE SYSTEMS
    BS EN 62858:2015 Lightning density based on lightning location systems (LLS). General principles
    PD CLC/TR 50450:2006 RESISTIBILITY REQUIREMENTS FOR EQUIPMENT HAVING (A) TELECOMMUNICATION PORT(S)
    I.S. EN 60728-11:2017 CABLE NETWORKS FOR TELEVISION SIGNALS, SOUND SIGNALS AND INTERACTIVE SERVICES - PART 11: SAFETY
    EN 50174-2 : 2009 AMD 2 2014 INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
    CLC/TS 50539-22:2010 Low-voltage surge protective devices - Surge protective devices for specific application including d.c. - Part 22: Selection and application principles - Wind turbine applications
    I.S. EN 1127-1:2011 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    I.S. CLC/TR 50450:2006 RESISTIBILITY REQUIREMENTS FOR EQUIPMENT HAVING (A) TELECOMMUNICATION PORT(S)
    PREN 50526-3 : DRAFT 2014 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - D.C. SURGE ARRESTERS AND VOLTAGE LIMITING DEVICES - PART 3: APPLICATION GUIDE
    S.R. HD 60364-7-712:2016 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-712: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - PHOTOVOLTAIC (PV) SYSTEMS
    CEI EN 62305-3 : 2013 PROTECTION AGAINST LIGHTNING - PART 3: PHYSICAL DAMAGE TO STRUCTURES AND LIFE HAZARD
    CEI EN 62305-4 : 2013 PROTECTION CONTRE LA FOUDRE - PARTIE 4: RESEAUX DE PUISSANCE ET DE COMMUNICATION DANS LES STRUCTURES
    UNE-EN 12186:2015 Gas infrastructure - Gas pressure regulating stations for transmission and distribution - Functional requirements
    DIN EN 1127-1:2011-10 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    I.S. EN 1127-2:2014 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
    I.S. EN 12186:2014 GAS INFRASTRUCTURE - GAS PRESSURE REGULATING STATIONS FOR TRANSMISSION AND DISTRIBUTION - FUNCTIONAL REQUIREMENTS
    VDI 2166 Blatt 2:2015-10 Planning of electrical installations in buildings - Advice for electric mobility
    VDI 2262 Blatt 1:2013-06 WORKPLACE AIR - REDUCTION OF EXPOSURE TO AIR POLLUTANTS - LEGAL PRINCIPLES, TERMS AND DEFINITIONS, BASIC ORGANISATIONAL MEASURES FOR INDUSTRIAL SAFETY AND ENVIRONMENTAL PROTECTION
    VDI 3819 Blatt 2:2013-07 FIRE PROTECTION IN BUILDING SERVICES - FUNCTIONS AND CORRELATIONS
    I.S. EN 62858:2015 LIGHTNING DENSITY BASED ON LIGHTNING LOCATION SYSTEMS (LLS) - GENERAL PRINCIPLES
    BS EN 62305-1:2011 Protection against lightning General principles
    BS EN 62305-4:2011 Protection against lightning Electrical and electronic systems within structures
    I.S. EN 16893:2018 CONSERVATION OF CULTURAL HERITAGE - SPECIFICATIONS FOR LOCATION, CONSTRUCTION AND MODIFICATION OF BUILDINGS OR ROOMS INTENDED FOR THE STORAGE OR USE OF HERITAGE COLLECTIONS
    14/30247708 DC : 0 BS EN 50526-3 - RAILWAY APPLICATIONS - FIXED INSTALLATIONS - D.C. SURGE ARRESTERS AND VOLTAGE LIMITING DEVICES - PART 3: APPLICATION GUIDE
    BS EN 50526-3:2016 Railway application. Fixed installations. D.C. surge arresters and voltage limiting devices Application Guide
    I.S. CLC TS 61643-22:2006 LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 22: SURGE PROTECTIVE DEVICES CONNECTED TO TELECOMMUNICATIONS AND SIGNALLING NETWORKS - SELECTION AND APPLICATION PRINCIPLES
    I.S. EN 62305-3:2011 PROTECTION AGAINST LIGHTNING - PART 3: PHYSICAL DAMAGE TO STRUCTURES AND LIFE HAZARD
    UNE-EN 62305-3:2011 Protection against lightning -- Part 3: Physical damages to structures and life hazard
    I.S. EN 62305-4:2011 PROTECTION AGAINST LIGHTNING - PART 4: ELECTRICAL AND ELECTRONIC SYSTEMS WITHIN STRUCTURES
    CLC/TR 50450:2006 Resistibility requirements for equipment having (a) telecommunication port(s)
    S.R. CLC/TS 61643-12:2009 LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 12: SURGE PROTECTIVE DEVICES CONNECTED TO LOW-VOLTAGE POWER DISTRIBUTION SYSTEMS - SELECTION AND APPLICATION PRINCIPLES
    BS EN 1127-1:2019 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology
    UNE-EN 60728-11:2012 Cable networks for television signals, sound signals and interactive services - Part 11: Safety
    DIN EN 1127-2:2014-09 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
    DIN EN 12186:2014-12 GAS INFRASTRUCTURE - GAS PRESSURE REGULATING STATIONS FOR TRANSMISSION AND DISTRIBUTION - FUNCTIONAL REQUIREMENTS
    DD CLC/TS 61643-12:2009 Low-voltage surge protective devices Surge protective devices connected to low-voltage power distribution systems. Selection and application principles
    UNE-EN 62305-4:2011 Protection against lightning -- Part 4: Electrical and electronic systems within structures
    EEMUA 207 : 2009 DOUBLE CONCRETE TANKS FOR LIQUEFIED GAS - GUIDE TO DESIGN, CONSTRUCTION AND OPERATION
    UNI EN 12186 : 2014 GAS INFRASTRUCTURE - GAS PRESSURE REGULATING STATIONS FOR TRANSMISSION AND DISTRIBUTION - FUNCTIONAL REQUIREMENTS
    UNI EN 1127-2 : 2014 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
    CEI EN 61400-24 : 2011 WIND TURBINES - PART 24: LIGHTNING PROTECTION
    CLC/TS 50539-12:2013 Low-voltage surge protective devices - Surge protective devices for specific application including d.c. - Part 12: Selection and application principles - SPDs connected to photovoltaic installations
    EN 60728-11:2017 Cable networks for television signals, sound signals and interactive services - Part 11: Safety
    13/30277110 DC : 0 BS EN 13243 - SAFETY REQUIREMENTS FOR CABLEWAY INSTALLATIONS DESIGNED TO CARRY PERSONS - ELECTRICAL EQUIPMENT OTHER THAN FOR DRIVE SYSTEMS
    05/30134962 DC : DRAFT JUN 2005 CENELEC TS 61643-22 - LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 22: SURGE PROTECTIVE DEVICES CONNECTED TO TELECOMMUNICATIONS AND SIGNALLING NETWORKS - SELECTION AND APPLICATION PRINCIPLES
    CEI CLC/TS 50539-12 : 2011 LOW-VOLTAGE SURGE PROTECTIVE DEVICES - SURGE PROTECTIVE DEVICES FOR SPECIFIC APPLICATION INCLUDING D.C. - PART 12: SELECTION AND APPLICATION PRINCIPLES - SPDS CONNECTED TO PHOTOVOLTAIC INSTALLATIONS
    DD CLC/TS 61643-22:2006 Low-voltage surge protective devices Surge protective devices connected to telecommunications and signalling networks. Selection and application principles
    UNI EN 1127-1 : 2011 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    I.S. EN 61400-24:2010 WIND TURBINES - PART 24: LIGHTNING PROTECTION
    I.S. EN 50174-2:2009 INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
    I.S. EN 50526-3:2016 RAILWAY APPLICATION - FIXED INSTALLATIONS - D.C. SURGE ARRESTERS AND VOLTAGE LIMITING DEVICES - PART 3: APPLICATION GUIDE
    BS EN 12186:2014 Gas infrastructure. Gas pressure regulating stations for transmission and distribution. Functional requirements
    UNE-CLC/TS 61643-12:2012 Low-voltage surge protective devices -- Part 12: Surge protective devices connected to low-voltage power distribution systems - Selection and application principles
    17/30361391 DC : 0 BS EN 50174-2 - INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
    BS EN 1127-2:2014 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology for mining
    EI MODEL CODE SAFE PRACTICE PT1 : 2010 THE SELECTION, INSTALLATION, INSPECTION, AND MAINTENANCE OF ELECTRICAL AND NON ELECTRICAL APPARATUS IN HAZARDOUS AREAS
    EI 1540 : 2014 DESIGN, CONSTRUCTION, COMMISSIONING, MAINTENANCE AND TESTING OF AVIATION FUELLING FACILITIES
    PD CLC/TS 50539-12:2013 LOW-VOLTAGE SURGE PROTECTIVE DEVICES - SURGE PROTECTIVE DEVICES FOR SPECIFIC APPLICATION INCLUDING D.C. - PART 12: SELECTION AND APPLICATION PRINCIPLES - SPDS CONNECTED TO PHOTOVOLTAIC INSTALLATIONS
    CEI CLC/TR 50450 : 2006 RESISTIBILITY REQUIREMENTS FOR EQUIPMENT HAVING (A) TELECOMMUNICATION PORT(S)
    DD CLC/TS 50539-22:2010 Low-voltage surge protective devices. Surge protective devices for specific application including d.c. Selection and application principles. Wind turbine applications
    S.R. CLC/TS 50539-12:2013 LOW-VOLTAGE SURGE PROTECTIVE DEVICES - SURGE PROTECTIVE DEVICES FOR SPECIFIC APPLICATION INCLUDING D.C. - PART 12: SELECTION AND APPLICATION PRINCIPLES - SPDS CONNECTED TO PHOTOVOLTAIC INSTALLATIONS
    DD CLC/TS 50539-12:2010 Low-voltage surge protective devices. Surge protective devices for specific application including d.c. Selection and application principles. SPDs connected to photovoltaic installations
    UNE-EN 50526-3:2016 Railway application - Fixed installations - D.C. surge arresters and voltage limiting devices - Part 3: Application Guide
    S.R. CLC/TS 50539-22:2010 LOW-VOLTAGE SURGE PROTECTIVE DEVICES - SURGE PROTECTIVE DEVICES FOR SPECIFIC APPLICATION INCLUDING D.C. - PART 22: SELECTION AND APPLICATION PRINCIPLES - WIND TURBINE APPLICATIONS
    BS EN 61400-24:2010 Wind turbines Lightning protection
    CEI EN 60728-11 : 2014 CABLE NETWORKS FOR TELEVISION SIGNALS, SOUND SIGNALS AND INTERACTIVE SERVICES - PART 11: SAFETY
    CEI CLC/TS 50539-22 : 2012 LOW-VOLTAGE SURGE PROTECTIVE DEVICES - SURGE PROTECTIVE DEVICES FOR SPECIFIC APPLICATION INCLUDING D.C. - PART 22: SELECTION AND APPLICATION PRINCIPLES - WIND TURBINE APPLICATIONS
    I.S. EN 62305-1:2011 PROTECTION AGAINST LIGHTNING - PART 1: GENERAL PRINCIPLES
    I.S. EN IEC 62688:2018 CONCENTRATOR PHOTOVOLTAIC (CPV) MODULES AND ASSEMBLIES - SAFETY QUALIFICATION
    PREN 1127-2 : DRAFT 2012 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 2: BASIC CONCEPTS AND METHODOLOGY FOR MINING
    EN IEC 62688:2018 Concentrator photovoltaic (CPV) modules and assemblies - Safety qualification
    EN 16893:2018 Conservation of Cultural Heritage - Specifications for location, construction and modification of buildings or rooms intended for the storage or use of heritage collections
    BS EN 1127-1:2011 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology
    I.S. CLC TS 61643-12:2006 LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 12: SURGE PROTECTIVE DEVICES CONNECTED TO LOW-VOLTAGE POWER SYSTEMS - SELECTION AND APPLICATION PRINCIPLES
    BS EN 50174-2 : 2009 INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
    EN 1127-2:2014 Explosive atmospheres - Explosion prevention and protection - Part 2: Basic concepts and methodology for mining
    EN 62305-4:2011/AC:2016-11 Protection against lightning - Part 4: Electrical and electronic systems within structures
    HD 60364-7-712:2016 Low-voltage electrical installations - Part 7-712: Requirements for special installations or locations - Photovoltaic (PV) systems
    EN 1127-1:2011 Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology
    EN 50526-3:2016 Railway application - Fixed installations - D.C. surge arresters and voltage limiting devices - Part 3: Application Guide
    EN 61400-24:2010 Wind turbines - Part 24: Lightning protection
    CLC/TS 61643-12 : 2009 LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 12: SURGE PROTECTIVE DEVICES CONNECTED TO LOW-VOLTAGE POWER DISTRIBUTION SYSTEMS - SELECTION AND APPLICATION PRINCIPLES
    EN 62858:2015 Lightning density based on lightning location systems (LLS) - General principles
    EN 62305-3:2011 Protection against lightning - Part 3: Physical damage to structures and life hazard

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

    EN 60079-10-1:2015 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
    EN 62305-4:2011/AC:2016 PROTECTION AGAINST LIGHTNING - PART 4: ELECTRICAL AND ELECTRONIC SYSTEMS WITHIN STRUCTURES (IEC 62305-4:2010)
    EN 60079-10-2:2015 Explosive atmospheres - Part 10-2: Classification of areas - Explosive dust atmospheres
    EN 50536 : 2011 AMD 1 2012 PROTECTION AGAINST LIGHTNING - THUNDERSTORM WARNING SYSTEMS
    IEC 60079-10-1:2015 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
    IEC 60050-426:2008 International Electrotechnical Vocabulary (IEV) - Part 426: Equipment for explosive atmospheres
    EN 62305-4:2011/AC:2016-11 Protection against lightning - Part 4: Electrical and electronic systems within structures
    IEC 62305-1:2010 Protection against lightning - Part 1: General principles
    EN 62305-3:2011 Protection against lightning - Part 3: Physical damage to structures and life hazard
    EN 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
    IEC TR 62066:2002 Surge overvoltages and surge protection in low-voltage a.c. power systems - General basic information
    IEC 62305-4:2010 Protection against lightning - Part 4: Electrical and electronic systems within structures
    IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
    IEC 62305-3:2010 Protection against lightning - Part 3: Physical damage to structures and life hazard
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