Rooms where entry is the controlled activity
A switch room, a main distribution board area or a pump room is not dangerous to walk past, but entering it and working there is a different matter. Electrical enclosures, live equipment and automatic systems mean access is normally restricted to people with a specific reason and specific training. A cleaner mopping around a switchboard is introducing water into a space designed to keep it out.
Battery charging areas add hydrogen and acid to the picture. They need ventilation, spill provisions and an understanding of what is happening on the racks. Cleaning them is a task with a method and a permit rather than an ordinary sweep, and on most sites it belongs to the operations team or to the equipment provider. Excluding it by name is more honest than assuming a cleaner will decide to stay out.
