• SN EN 62305-2 : 2006

    Current The latest, up-to-date edition.

    PROTECTION AGAINST LIGHTNING - PART 2: RISK MANAGEMENT

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    Language(s): 

    Published date:  12-01-2013

    Publisher:  Swiss Standards

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

    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms, definitions, symbols and abbreviations
    4 Explanation of terms
      4.1 Damage and loss
      4.2 Risk and risk components
      4.3 Composition of risk components related to a
          structure
      4.4 Composition of risk components related to
          a service
      4.5 Factors influencing the risk components
    5 Risk management
      5.1 Basic procedure
      5.2 Structure to be considered for risk assessment
      5.3 Service to be considered for risk assessment
      5.4 Tolerable risk R[T]
      5.5 Specific procedure to evaluate the need of
          protection
      5.6 Procedure to evaluate the cost effectiveness
          of protection
      5.7 Protection measures
      5.8 Selection of protection measures
    6 Assessment of risk components for a structure
      6.1 Basic equation
      6.2 Assessment of risk components due to flashes to
          the structure (S1)
      6.3 Assessment of the risk component due to flashes
          near the structure (S2)
      6.4 Assessment of risk components due to flashes to
          a line connected to the structure (S3)
      6.5 Assessment of risk component due to flashes near
          a line connected to the structure (S4)
      6.6 Summary of risk components in a structure
      6.7 Partitioning of a structure in zones Z[S]
      6.8 Assessment of risk components in a structure
          with zones Z[S]
    7 Assessment of risk components for a service
      7.1 Basic equation
      7.2 Assessment of components due to flashes to
          the service (S3)
      7.3 Assessment of risk component due to flashes near
          the service (S4)
      7.4 Assessment of risk components due to flashes to
          structures to which the service is connected (S1)
      7.5 Summary of risk components for a service
      7.6 Partitioning of a service into sections S[S]
    Annex A (informative) Assessment of annual number N of
                           dangerous events
    Annex B (informative) Assessment of probability P[X] of
                           damage for a structure
    Annex C (informative) Assessment of amount of loss L[X] in a
                           structure
    Annex D (informative) Assessment of probability P'[X]
                           of damage to a service
    Annex E (informative) Assessment of the amount of loss L'[X]
                           in a service
    Annex F (informative) Switching overvoltages
    Annex G (informative) Evaluation of costs of loss
    Annex H (informative) Case study for structures
    Annex I (informative) Case study for services - Telecommunication
                           Line
    Annex J (informative) Simplified software for risk assessment
                           for structures
    Annex NB (informative) Assessment of probability P[X] of damage
                           for a structure
    Annex NC (informative) Assessment of amount of loss L[X] in
                           a structure
    Annex NH (informative) Case study for structures
    Annex NK (informative) Values determined at national level
                           where permitted
    Bibliography

    Abstract - (Show below) - (Hide below)

    Applies to risk assessment for a structure or for a service due to lightning flashes to earth.

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    Document Type Standard
    Publisher Swiss Standards
    Status Current
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