Introduce the latest technology power safety from Germany, installed in power users and provide outlet, to prevent the client and distribution network security with fault isolation outdoor equipment to avoid large-scale blackout city, is reliable guarantee of "strengthening grid" by State Grid Corporation.

When a client malfunction, rapid movement, firewall protection distribution circuit breaker isolating fault quickly, and with cell phone short message, notify the customer center fault time, place and the nature is an alternative product of all intelligent cable-style branch box (Ring net ark).