Clause 551 has detailed rules for earthing arrangements, depending on the system type (TN, TT, IT). For example:
A: Yes, low-voltage PV installations fall under the scope of generating sets. However, specific performance standards (like IEC 60364-7-712) may provide additional specific requirements for PV systems. iec 60364 part 551 pdf
What is the of the generating set (e.g., diesel, solar PV, battery)? Clause 551 has detailed rules for earthing arrangements,
Mains-excited and separately excited synchronous or asynchronous generators. depending on the system type (TN
Failure to label an installation is a direct violation of IEC 60364 part 551.
Yes, Clause 551 explicitly states that its requirements apply to as well as low‑voltage ones.