Height: 2,600 mm Double MV Substation Width: 8,000 mm Length (front to back): 3,500 mm Height: 2,600 mm Dual Radial Feed MV Substation Width: 4,000 mm Length (front to back): 4,500 mm Height: 2,600 mm Wall thickness Internal wall between MV substation and other areas of a building: 215 mm