Disconnection time cannot be met.
RCD is required to disconnect in 40ms or less. Solar inverters can stay powered for up to 5 seconds after the grid supply is disconnected.
Consumer Unit... too many Amps
- Thread starter flibberflops
- Start date
RCD is required to disconnect in 40ms or less. Solar inverters can stay powered for up to 5 seconds after the grid supply is disconnected.
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Exactly. When that RCD trips to save your life, you don’t want the solar inverter islanding itself and continue to shock you until it finally shuts down. Solar should always be on its own RCD (if required), and usually a solar installer will ensure this by fitting their own small CU. Quite often a sparky comes along and fits a new CU, “tidying and condensing” things into one board, not realising they’ve introduced a danger.
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