It must of been fairly common place ecspecially in Adelaide as a few other houses I have been to have the switchboard in the laundry. As for the piece of 2.5, that has all been removed along with all the equipment in the photo. I have since found out that this cable run to a double power outlet that was screwed onto the wall just out of the picture. Even a piece of flexible conduit would of been a good idea on this cable to prevent mechanical damage.