Hitachi WJ200-001S Quick Reference Manual page 95

protective conductor connection. The filter must be solidly and permanently
connected with the ground potential so as to preclude the danger of electric shock
upon touching the filter if a fault occurs.
To achieve a protective ground connection for the filter:
 Ground the filter with a conductor of at least 10 mm
 Connect a second grounding conductor, using a separate grounding terminal
parallel to the protective conductor. (The cross section of each single protective
conductor terminal must be sized for the required nominal load.)
2
cross-sectional area.
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