1、 Disclosure and setting out

主要是由项目经理要对工人进行技术交底，然后再是工人师傅根据设计要求放线，一般来说开槽宽度50mm。放线应当精准到位，无缺漏情况。

The project manager shall make technical disclosure to the workers, and then the worker's master shall set out according to the design requirements. Generally speaking, the slotting width is 50mm. The setting out shall be accurate and in place without omission.

二、旧物拆除

2、 Demolition of old objects

若有电线及开关插座，那么接下来就是拆除原有电线及开关插座。

If there are wires and switch sockets, the next step is to remove the original wires and switch sockets.

三、开槽钻孔

3、 Slotted drilling

依据施工现场实际的放线位置进行开槽，开槽时必须注意开槽深度。过墙和过梁的地方需要钻孔，钻孔时的孔径、孔距一般为100mm；电线和水管不能走一个孔。

The slotting shall be carried out according to the actual setting out position on the construction site, and the slotting depth must be paid attention to during slotting. Where the wall and lintel pass through, drilling is required, and the hole diameter and hole spacing are generally 100mm; You can't go through a hole with a water pipe.

四、布管

4、 Pipe laying

根据在施工现场开设的沟槽进行布排管，在有水房间进行布排管时电管应布设在墙上、顶上。强弱电线不允许走厨房、卫生间阳台的地面。

The pipes shall be arranged according to the grooves opened at the construction site. When the pipes are arranged in the room with water, the electric pipes shall be arranged on the wall and top. Strong and weak wires are not allowed to walk on the ground of kitchen, toilet and balcony.

在穿线时，一根电线管内所穿电线的截面积之和必须小于该管道内截面的40%。一般情况下16mm的电线不宜超过3根，20mm的电线不宜超过4根。

When threading, the sum of the cross-sectional areas of the wires in a wire pipe must be less than 40% of the cross-sectional area in the pipe. Generally, there should not be more than 3 16mm wires and 4 20mm wires.

五、检查线路

5、 Check the circuit

运用万用表、欧姆表检查线路畅通无阻，不出现短路以及断路的现象，导线间绝缘电阻大于等于0.5mΩ，为安装开关插座作准备。

Use multimeter and ohmmeter to check that the line is unobstructed, there is no short circuit and open circuit, and the insulation resistance between conductors is greater than or equal to 0.5m Ω, so as to prepare for the installation of switch socket.

六、安装开关插座等

6、 Install switch socket, etc

在安装之前不允许应用房屋内各插座，只能应用公司指定拖线盒。注意开关插座面板应平整、紧贴建筑物表面。同一场所的开关切断位置一致，且操作灵活，接点接触可靠。

Before installation, it is not allowed to use all sockets in the house, but only the cable box specified by the company. Note that the switch socket panel should be flat and close to the building surface. The cut-off positions of switches in the same place are the same, with flexible operation and reliable contact.