All kinds of switches, sockets, and light boxes should be positioned according to conventional requirements, and the distance between the door sides should be positioned with a tape measure, and all switch boxes, socket boxes and control junction boxes should be surface-mounted according to the position of the wall.

1. Cable laying and protection measures

2. Insulation resistance shake test

3. Installation of lighting fixtures

Installation of fluorescent lamps: In the same room, a single lamp is centered, and multiple lamps are installed in a straight line, and its deviation is within 50 mm; For fluorescent lamps with hanging chains, the hanging chains and the lamp tubes are perpendicular to each other, and the hanging links are parallel to each other. Installation of other lamps and lanterns: According to the dimensions and installation position of the lamps, the lamps and lanterns should be reliably fixed, and the wire ends should be wrapped close to the ceiling and should not be exposed.

4. Installation of distribution boxes and cabinets

5. Installation of lightning protection and grounding system

It adopts TN-S integrated grounding form and sets up special PE grounding wire. Construction material requirements: All metal components of the lightning protection and grounding system must be galvanized, and the zinc layer is uniform, without rust and zinc layer peeling. The materials used in the project must have a certificate of conformity, and be used after passing the inspection by on-site supervision and technical personnel.