Electrical equipment wiring is a strong power line. Here the so-called strong power does not mean that the power industry division standards, but in industrial and civil environments relative to low-voltage and signaling and other weak power lines, the use of 380V or 220V power lines.
Integrated wiring is a weak line. Most of them are AC and DC voltage, DC and various signal lines, such as computer network lines, video signal lines, data signal lines collected by various sensors.