How can the shielding effectiveness of the housing of the intelligent low-voltage monitoring unit be guaranteed?

Ensuring the shielding effectiveness of the enclosure requires a combination of materials, structure, and manufacturing processes.

Material: 5052 aluminum alloy, 1.2mm thick.

Structure: Six-sided continuous conductive surface, with gap length less than λ/20.

Manufacturing Process: Beryllium copper springs are used at the seams; metal mesh is used for ventilation holes; transparent conductive film is used for the display window.

Testing: The shielding chamber method is used to ensure a shielding effectiveness greater than 35dB in the 30MHz-1GHz frequency band.

Through this assurance, the enclosure meets the shielding effectiveness requirements of IEC 61000-5-7.