Proposed Recommended Practices for the Measurement of Shielding Effectiveness of High-Performance Shielding Enclosures

Uniform measurement procedures are proposed for determining the relative effectiveness of room-size high-performance shielding enclosures. Test procedures are designated to measure the effectiveness of a rectangular parallelepiped with edge dimensions ranging from 1.5 to 15 meters. They are formulated to enable use of commercially available equipment for conducting tests under nonideal conditions. The standard does not, however, specify construction details for shielding enclosures nor does it suggest methods for calculating their effectiveness.