A:No, we suggest not install at big building. Please refer to the following points for more understandings:
1.PL-702 must build in the same power loop, if the loop is different that can cause disconnect. Based on experience, the big buildings will have many different loops.
2.PL-702 maximum distance is 300M, if it is over that can cause signal failure and disconnect.
3.IF the powerline is old or broke and cause signal failure and disconnect.
4.The maximum number is 16 PCS for one PL-702 after another PL-702 at the same power loop.