It is good for branch circuit to have separated ground wire and direct connection to earth terminal ?, branch circuit is use 3x4mm² (R-N-PE) wire, It is better to use separated 1x25mm² wire that connected directly to earth terminal for branch circuit surge arrester ?, also if I use PE wire in 3x4mm² can surge current make damage to equipment ?, because 3x4mm² PE is use to electronics ground too... and also same network with bonding
If it is better to use separated ground wire, for economic reason, is use bigger PE wire for than branch feeder wire is safe ? In this case branch feeder is 3x4mm² so... we use 1x6mm² or 1x10mm²
If it is better to use separated ground wire, for economic reason, is use bigger PE wire for than branch feeder wire is safe ? In this case branch feeder is 3x4mm² so... we use 1x6mm² or 1x10mm²