Questions about ESD Control?

Question: 1) In the scope, 200 volts CDM & 35 volts on isolated conductors are added. What is the intention to add them? Why are both of them determined on the value of 200 volts and 35 volts, respectively? 

Question: 2) As defined in clause 8.3.1, “If the field measured on the process required insulator is greater than 125 volts/inch and the process required insulator is less than 2.5 cm (1 inch) from the ESDS item, steps shall be taken to either A)… or B)…”, is there any relation between 125 volts/inch in here and 200V CDM in scope? If there is ESDS items whose sensitivity level is lower than CDM 200 volts (e.g., 100 volts) to be handled, which additional control elements or adjusted limits should be required? 

For answers to these questions and more answers about ESD control see the ESDA’s Threshold March/April edition HERE.

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