Wire installation knowledge

1, the power cord can be divided into three

The red is the fire line, the blue is the zero, and the color is the ground. During the decoration, the power line pipe should be pre-determined in the Po body trough. Ensure that the surface of the casing is recessed into the wall for a certain distance. After the power line is connected, the wall surface should be wetted, closed with 1 to 5 inches, and sealed. It should be flat and low dry. The power supply bottom box should be installed firmly, and the bottom surface of the panel should be flat and match the wall surface. The power cord should be horizontal and vertical, and should not be slanted.

2, power supply circuit installation

The power supply circuit of the kitchen, bathroom and bathroom should use the leakage protector independently, and must be connected with other power supply circuits. The zero line of the soldier must not be connected to the circuit. For high-power appliances such as air conditioners, a dedicated power supply circuit must be connected.

3, switch installation

The installation method of the rocker switch: the lower end is pressed to be turned on, and the upper end is pressed to be disconnected. When the socket switch and the panel are fastened, screws should be used. It cannot be replaced by a buried nail or a stone plate screw to damage the bottom box. The bedroom should have a dual control switch. Kitchen power outlets should be set side by side. The switch box is generally off the ground, and the switch is about one meter above the ground.

4, the wall of the wire of the matter

All the in-wall electric wires are pvc flame-retardant pipe casings buried, and connected with elbows, hundred knots, junction boxes, etc., when connecting the bottom of the box, there must be no joints in the pipeline, and the power cords should not be flooded to ensure the safety of the power cord. .

5, power line pipe installation

When passing under the ground, you should pay close attention to the fact that the female casing must be tightly connected underneath, and no joints are allowed in the ground. The power cord must be bent over the ground. Before the ground is closed, the PVC casing must be protected from cracking damage. When laying the floor tiles, the PVC casing should be completely covered with sand. When the wooden floor is nailed, the Power Cable should be installed along the corner to prevent the power cord. Damaged by the solder.

6, the installation of the socket

All unidirectional sockets should be connected according to the "left zero line right fire line middle ground line" or "upper fire line lower zero line" connection. Air-conditioning power supply generally adopts triangular plug. The socket with protective valve should be used in the height that children can touch. The bathroom, washing room and bathroom should be equipped with waterproof socket. The installation height should be no less than 1m, and should be away from water.