1, the power switch is generally between 1.2m and 1.4m from the ground (the switch height is generally the same as the adult shoulder height), and it is installed at the same height with a difference of less than 5mm；;

2. If several switches or multi-position switches are installed side by side, the position of the control appliance should correspond to the position of each switch function. For example, the leftmost switch should control the leftmost electrical appliance;

3. Ordinary power sockets without special requirements shall be installed at a distance of 0.3m from the ground, with the same height and a difference of no more than 5mm；;

4. Wall sockets, desk lamps and wiring boards of audio-visual equipment. Generally, it is 0.3m above the ground (the living room socket depends on the TV cabinet and sofa);

5. Washing machine socket 1.2m to1.5cm; From the ground;

6. The refrigerator socket is 0.3m or 1.5m from the ground (depending on the location and size of the refrigerator);

7. Air conditioning exhaust fan socket 1.9m to 2.0m from the ground;

8. The socket of the electric water heater should be installed on the right side of the water heater, which is 1.4m ~ 1.5m away from the ground. Be careful not to put the socket on the electric heater.

9. The socket of the terrace should be above 1.4m from the ground, and be as far away from sunlight and rain as possible.