1. The table can not have metal components, the table (actually refers to the horizontal coupling plate) can not have conductive objects around, the objects can not put on the wall and the electrostatic discharge generator host, or under the table. 2. The resistance clamp and middle wire of resistance wire for connecting the coupling plate with earth cannot fall on the r eference g rounding p lane , if the wire is too long , the middle wire can be fold. 3. The ESD generator host can not put on the coupling plate during the test. 4. The discharge ground return line is the main channel of the discharge current loop and should be deployed naturally, not near the coupling plate. Do not change the length, do not fold, and do not change the line. 5. For EUTs that are not powered by an independent grounding grid, pay attention to the difference in impedance of the power lines of each laboratory to the ground. Some EUTs that are sensitive to ESD ...