ETS-Lindgren SMART 1000 Mini-Reverb Cell - Manual (Page 31)

Power Line Filters | 31
5.0 Power Line Filters
An electrician generally installs power line filters at the time of the enclosure
installation. After the filters are put into service, they rarely require maintenance.
Should a problem occur, only a qualified electrician should troubleshoot the
problem.
Most power line filters have a built-in voltage
discharge system. However, it is possible for
the discharge system to be inoperative in
certain conditions; therefore, all filters must be
discharged prior to being handled. To
discharge filters a resistance greater than
100,000 ohms must be used in the discharge
probe.