IEEE 299-2006: Measuring The Effectiveness Of Electromagnetic Shielding Enclosures

 Like similar shielding effectiveness standards, the IEEE 299-2006 standard is specifically for enclosures. It can be any classification of enclosure, but must serve a purpose to shield from exterior electric or magnetic fields, or in a similar fashion, protect the environment around itself from the effect of an interior electric or magnetic field.

Usually, the enclosure is constructed of metal with guidelines for continuous electrical contact between joining panels (i.e., doors). Examples for specific enclosures include: single-shield or double-shield structures of various construction (i.e., bolted demountable, welded, or integral with a building) or made of materials (e.g., steel plates, copper / aluminum sheets, screening, hardware cloth, metal foil, or shielding fabrics).

The required frequency range for the shielding effectiveness test must include the span from 9 kHz to 18 GHz, however, this can be extended to cover frequencies down to 50 Hz and up to the maximum up to 100 GHz.

The test setup is the same as other shielding effectiveness, with the determination of the dynamic range and the actual measurement of the signal for the sample in question. Unlike other test specifications, the IEEE standard here addresses this clearly under Annex B: Section B.6.

Keystone Compliance has the capabilities to test any size of enclosure to IEEE-299. We have tested large items such as entire on-site installation buildings and small items that can be easily transported to our lab.

Are you ready to partner with Keystone Compliance to determine the shielding effectiveness of your product when tested to the requirements of IEEE 299-2006? Let’s get started!