I'm fairly new to domestic installations and was wondering if someone could shed a bit of light around 3phase surge protection installed in a home at the main DB. What would the more common configuration here in SA be..
L1-N, L2-N, L3-N and N-E or all the SPD's L1, L2, L3 and N all bridged.
I realize these two configurations offer different surge protection but was wondering which one is mostly used. The home needing the installation is only looking for protection from all the loadshedding.
Many thanks in advance