This part of IEC 61000 defines and gives information on protection concepts against electromagnetic pulse due to a high altitude nuclear explosion (denoted in what follows by the abbreviation HEMP).
The aim of this technical report is to provide elements for
- the design of an adequate protection for civil facilities against HEMP;
- the evaluation of already existing protections with respect to stresses imposed by HEMP;
- the comparison of the requirements of HEMP and lightning protection in order to show if they can be combined at low cost;
- an emphasis of the differences between the requirements of HEMP and lightning protection in order to permit an evaluation of the consequences of HEMP when no additional measures are taken beyond existing lightning protection.