Shielding effectiveness of multi-layered cylindrical and spherical metallic shells in contact for quasi-stationary electric fields

A systematic method is clearly developed for the solution of shielding effectiveness problems for multi-layer cylindrical and spherical metallic shells in contact. In order to shield against high quasi-static electric field we have to use multiple shells arrangements. The possibility of using more than two layers is considered in this paper. In multiple electric shielding there is no air or vacuum gap between layers.