A family dairy farm had grown around a supply put in decades ago. The milking parlour, a new workshop and a barn being converted to a holiday let were all hanging off one overloaded board in the farmhouse, with cables draped between buildings.
We installed a new distribution board at the meter position and ran armoured sub-mains underground to each building, around 180 metres of cable in all, with a separate consumer unit in each. The parlour got RCD-protected sockets and lighting rated for wash-down, the workshop a three-phase supply for the welder and compressor, and the holiday let a full domestic installation with heat and smoke alarms. Outdoor lighting on the yard runs on a sensor so the first thing the farmer does at 5am is no longer finding the switch in the dark.
Each building now has its own isolation, so a fault in the workshop no longer takes the parlour off, which during milking was the thing the family wanted fixed most.