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DB300716
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PB501694
Spacial EMCsolution
Electromagnetic protected
steel enclosures
Introduction
Attenuation of the Spacial S3HF enclosure
General information on Electromagnetic Compatibility, see pages 386 and 387.
The next illustrations indicates the attenuation (dB) curves related to the frequency
(MHz).
Floor-standing compact enclosure
The enclosure is tested with earth braids mounted on all claddings (test performed
following IEC 61587-3).
Floor-standing suitable enclosure
Enclosure is tested with its sides panels and earth braids mounted on all claddings
(Test performed following IEC 61587-3).
Reflected
wave
Enclosure surface
Outside
Inside
Incident
wave
Radiated
wave
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
Attenuation (dB)
Attenuation (dB)
Attenuation (dB)
Magnetic field
Electrical field
Mean vertical attenuation values
Mean horizontal attenuation values
Mean vertical attenuation values
Mean horizontal attenuation values
The presence of 55 % aluminium on the
surface of the sheet metal ensures good
reflection of electromagnetic waves.