This drawing is a detailed cad construction drawing of a residential area, including electrical construction design description, left unit power trunk system diagram, detailed equipotential connection diagram of strong and weak current wells, distribution box system diagram 1, detailed positioning drawing of B1 type socket, detailed positioning drawing of D type socket, B2 type socket positioning details, B1 lighting plan, B1 power plan, B1 weak current plan, machine room floor electrical plan, F1 lighting plan, F1 power plan, F2 lighting plan, F2 power plan, F2 weak current plan, 3-18 weak current plan, Lighting plan from the third floor to the eighteenth floor Power plan from the third floor to the eighteenth floor is for your reference!