1. The height of the power switch is generally 1.2-1.4m. The height standard can refer to the shoulder height of adults. The height in the same space needs to be the same, and the height difference cannot exceed 5mm.

2. The height of sockets without special requirements is generally 1.3m.. Similarly, the height difference between multiple sockets cannot exceed 5 mm.

3. The height of sockets for audio-visual equipment, desk lamps and wiring boards in the living room is generally 1.3m, depending on the height of TV cabinets and sofas.

4. The height of the socket of the air conditioner and exhaust fan is between 1.9 and 2.1 meters.