[question]
What type of RCD (residual current device) do I need?
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[answer]
For EV charging, an A-EV or Type B RCD is appropriate (the exact type is specified by the charger manufacturer), so that it also trips safely in the presence of typical DC components.
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[question]
Outdoor installation?
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[answer]
Adequate IP protection rating, UV-resistant cables, mechanical protection, and a position partly sheltered from precipitation. A design prepared for extreme weather is recommended.
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[question]
Maintenance
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[answer]
Periodic visual inspection: check for damage, burn marks, loose screws, or contact faults. It's worth having a professional check it annually.
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