IEC61000-4-2中有说明
8.3.2 Direct application of discharges to the EUT
Unless stated otherwise in the generic, product-related or product-family standards, the
electrostatic discharges shall be applied only to those points and surfaces of the EUT which
are accessible to persons during normal use. The following exclusions apply (i.e. discharges
are not applied to those items):
a) those points and surfaces which are only accessible under maintenance. In this case,
special ESD mitigation procedures shall be given in the accompanying documentation;
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