By design, this tool set provides a reliable means of draining offstatic charges that remain on collector plates after electrostatic-precipitator pollution-control equipment is de-energized for servicing.With the electrical system of the precipitator de-energized, firstsecure the tool#s grounding clamp to a known ground. Then use theinsulated handle to bring the Copper hook in contact with theprecipitator collector plates. The Contact hook hangs from the collectorplates (with the grounding clamp still attached to ground) while serviceis performed on the precipitator. When maintenance is completed, use theinsulated handle to remove the contact hook from the collector plates.Thenremove the ground clamp before re-energizing the precipitator.