1.1 The electrical installation works mainly include the installation and commissioning of power, lighting and lightning protection grounding parts of the power transformation and distribution room and production devices, flammable warehouse, the whole plant, tank farm, flare area, cooling circulating water, waste water treatment station, soft water treatment, truck scale system, laboratory and other sections (the high-voltage transformer room is in the charge of the unit designated by the owner). 1.2 Power supply of the device