Christophe wrote:
It's a good argument. But what about all PV installations during a maintenance? They automatically disconnect?
Yes, as others have already said above, an approved, standard grid injection inverter is designed to shut off in the event of a power outage.
However a failure, even very unlikely, can occur (a short-circuit semiconductor is common, especially on power circuit)
In the case of an approved installation, certified by inspection body and subject to a buy-back agreement, you are covered (certificate of conformity, and distributor of electricity who is aware that there is a network injection point, he can take measures to isolate this one)
If you inject wildly even with a compliant inverter, in case of an accident you can always argue that you were using a UPS that meets the safety standards, I doubt that legally you do the weight against the army of EDF's lawyer.
Now we agree, this kind of failure is normally extremely rare (but I remind you that the risk 0 does not exist) and that in principle the agents having to intervene on the network have provisions against the accidental release under power .
But hey, it was to emphasize the legal aspect of the thing, since that was part of the question.