1、 Disclosure and setting out

主要是由項目經理要對工人進行技術交底，然后再是工人師傅根據設計要求放線，一般來說開槽寬度50mm。放線應當精準到位，無缺漏情況。

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、舊物拆除

2、 Demolition of old objects

若有電線及開關插座，那么接下來就是拆除原有電線及開關插座。

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

三、開槽鉆孔

3、 Slotted drilling

依據施工現(xiàn)場實際的放線位置進行開槽，開槽時必須注意開槽深度。過墻和過梁的地方需要鉆孔，鉆孔時的孔徑、孔距一般為100mm；電線和水管不能走一個孔。

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

根據在施工現(xiàn)場開設的溝槽進行布排管，在有水房間進行布排管時電管應布設在墻上、頂上。強弱電線不允許走廚房、衛(wèi)生間陽臺的地面。

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.

在穿線時，一根電線管內所穿電線的截面積之和必須小于該管道內截面的40%。一般情況下16mm的電線不宜超過3根，20mm的電線不宜超過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、檢查線路

5、 Check the circuit

運用萬用表、歐姆表檢查線路暢通無阻，不出現(xiàn)短路以及斷路的現(xiàn)象，導線間絕緣電阻大于等于0.5mΩ，為安裝開關插座作準備。

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、安裝開關插座等

6、 Install switch socket, etc

在安裝之前不允許應用房屋內各插座，只能應用公司指定拖線盒。注意開關插座面板應平整、緊貼建筑物表面。同一場所的開關切斷位置一致，且操作靈活，接點接觸可靠。

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.