Electrical layout drawings cover power distribution, lighting circuits, and small power across a building. These drawings need to stay coordinated with mechanical and public health services throughout a project, since electrical containment routes are some of the most space-constrained on any floor.
Electrical drawings are usually the last to be finalised on a floor because everything else has to be routed around them, or they around everything else. Clear, accurate layouts reduce the back-and-forth between disciplines during coordination.