1, infrared diagnosis of charged equipment of the electrical system
2, grounding resistance detection of the electrical system
3, detection of residual current action protection device of the electrical system
4, insulation resistance detection of the electrical system
5, construction of the transformer and distribution system, installation of terminals
6, indoor low-voltage distribution facilities, the installation of the electrical system
6, indoor low-voltage distribution line wiring, power and lighting distribution boxes, switch socket installation7, the laying of lines in the ceiling
8, electrical equipment grounding and equipotential coupling, etc.