IEC 61024-1-1:1993

FOREWORD
INTRODUCTION
Clause
1 General
  1.1 Scope and object
  1.2 Terms and definitions
2 Classification of structures
  2.1 Common structures
  2.2 Special structures
3 Lightning parameters
  3.1 Lightning current parameters used for dimensioning Lightning
      Protection Systems (LPS)
  3.2 Lightning ground flash density
4 Selection of protection levels for Lightning Protection Systems (LPS)
  4.1 Accepted frequency of lightning flashes (N[c]) to a structure
  4.2 Expected frequency (N[d]) of direct lightning flashes to a
      structure
  4.3 Procedure for selection of LPS
Figures
Annex A - Basic values of lightning current parameters - Cumulative
          frequency distribution

Contains information on the classification of structures according to the consequential effects of a lightning stroke. Gives procedures for the selection of a lightning protection system. Is to be used with part 1.