In life, a lot of time wall switch, socket in use because of the distance from the door frame, the ground is too far or too close, when using wall switch socket is not very convenient. Here we consulted concerned personnel specially, the answer that they give is: the position that normally wall switch socket instals should facilitate operation, the distance appropriate between edge and door frame is 0.15, 0.2m; The height from the ground is about 1.3m. The distance between the door frame of 0.15-0.2m is to facilitate the use of the switch after opening the door. The height of 1.3m from the ground is set according to the usual height of the person. At the same time, it can also prevent children from contacting it so as to avoid accidents.
