A townhouse in Belo Horizonte still had its 1990s board, no protective conductor and three mixed circuits. I rebuilt the board, the earthing and the protection, with a recorded trip test for every single circuit.
The porcelain board had given way to a generic surface box, curve C breakers stacked on the busbar and a make-believe earth: the green conductor left the bar and died behind the wall, with no rod, no inspection box, nothing measured. The shower, the washing machine and the microwave shared one 2.5 mm² circuit, and an RCD existed only over the kitchen.
A plant in Guarulhos ran its 1994 substation with no discrimination and no earthing record. I redrew the single-line diagram, the me…
A 1,850 m² store in Brasilia replaced burnt luminaires like-for-like. I mapped the real illuminance of each sales zone and redesigne…
A Curitiba condominium approved 48 bays with chargers and the substation could not follow. I ran the load study with the building ma…
