Optimized Design of Lightning Protection using Rolling Sphere Method

Marwa Abbas Almaazmi

Abstract: This Article is going to furnish information about all lightning protection schemes that has to be provided for some types of buildings in order to provide a rigid protection against lightning strikes. International Standard IEC 62305 recommends to use three methods of lightning protection systems, either mesh, protection angle or rolling sphere. A summary of a case study conducted at Canada for one of the AIS Substation will be discussed. The substation initially designed to use lightning protection system, and thenafter some decades the same was upgraded to rolling sphere method. Comparison will be made to show how the optimum selection of lightning protection scheme saves time, cost and has direct impact on the environment, in terms of reducing the number of main components utilized for a building.

Keywords: lighting strikes, IEC 62305, Mesh, protection angle, rolling sphere