EMC Measures
Shielding Use of shields Shielding is required if susceptible equipment and sources of interference cannot be sufficiently distanced through room rearrangements. Shield A shield is a metal component that is placed between the source of interference and the susceptible equipment. It influences the distribution between source and the equipment. The coupling is minimized this way. Shielding types There are several different types of shield that can be used: Cable shield Chassis as shield Room shielding Partition panel as shield
Shielding effectiveness The effectiveness of the shield depends on its mutual impedance The mutual impedance must be as small as possible in order to achieve good shielding effectiveness. The smaller the mutual impedance is, the greater the leakage current can be.
86
33002439 10/2019