Retirement ceremonies can be planned and executed by any Project Officer/NCO using this checklist. Deviations. may be necessary to tailor the ceremony to the individual, but the major items are included.
The ground is used for common mode rejection. The primary purpose of the ground is to prevent power line noise from interfering with the small biopotential signals of interest. By design, amplifiers should not be affected by large changes in potential at both the active and reference sites. A ground electrode for EEG recordings is often placed on the forehead (but could be placed anywhere else on the body; the location of the ground on the subject is generally irrelevant).
Under normal circumstances, no current flows in the equipment grounding conductor. The following example illustrates the purpose of the equipment grounding conductor. Figure 1 is the schematic of an appliance without an equipment grounding conductor connected to the metal chassis. The appliance is sitting on a wood table, and therefore isolated from earth ground. The appliance is OFF, but a wire insulation fault has occurred before the switch.