46 Rockwell Automation Publication 7000-UM202D-EN-P - May 2018
Chapter 2 Power Component Definition and Maintenance
Figure 33 - Surge Arresters (Heatpipe Model)
When you disconnect the surge arrester from drive, the arrester may retain a
small amount of static charge. As a precautionary measure, install a temporary
ground on the line-end of the arrester and discharge the stored energy. Remove
temporary ground before reinstalling the arrester. To avoid electrical shock
when removing the arrester from service, treat the arrester as fully energized
until you disconnect both the line and ground leads.
Field Test and Care
No field testing is necessary. The arresters do not require special care. At very
dusty sites, however, you should clean the arrester when cleaning the entire
drive.
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