SN EN 62305-1 : 2006

Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Lightning current parameters
5 Damage due to lightning
  5.1 Damage to a structure
  5.2 Damage to a service
  5.3 Types of loss
6 Need and economic convenience for lightning
  protection
  6.1 Need for lightning protection
  6.2 Economic convenience of lightning protection
7 Protection measures
  7.1 Protection measures to reduce injury of living
      beings due to touch and step voltages
  7.2 Protection measures to reduce physical damage
  7.3 Protection measures to reduce failure of electrical
      and electronic systems
  7.4 Protection measures selection
8 Basic criteria for protection of structures and services
  8.1 Lightning protection levels (LPL)
  8.2 Lightning protection zones (LPZ)
  8.3 Protection of structures
  8.4 Protection of services
Annex A (informative) Parameters of lightning current
  A.1 Lightning flashes to earth
  A.2 Lightning current parameters
  A.3 Fixing the maximum lightning current parameters for LPL I
  A.4 Fixing the minimum lightning current parameters
Annex B (informative) Time functions of the lightning
                      current for analysis purposes
Annex C (informative) Simulation of the lightning current
                      for test purposes
  C.1 General
  C.2 Simulation of the specific energy of the first short
      stroke and the charge of the long stroke
  C.3 Simulation of the front current steepness of the short
      strokes
Annex D (informative) Test parameters simulating the effects
                      of lightning on LPS components
  D.1 General
  D.2 Current parameters relevant to the point of strike
  D.3 Current sharing
  D.4 Effects of lightning current causing possible damage
  D.5 LPS components, relevant problems and test parameters
  D.6 Surge protective device (SPD)
  D.7 Summary of the test parameters to be adopted in testing
      LPS components
Annex E (informative) Surges due to lightning at different
                      installation points
  E.1 Surges due to flashes to the structure (source of damage S1)
  E.2 Surges relevant to services connected to the structure
  E.3 Surges due to induction effects (Source of damage S1 or S2)
  E.4 General information relating to SPDs
Bibliography

Gives the general principles to be followed in the protection against lightning of: - structures including their installations and contents as well as persons, - services connected to a structure.