The "Do Not Block Access To Switchboard" prohibition sign is used to indicate that the switchboard should always be accessible and not obstructed. This is important because the switchboard is a critical part of the electrical system in a building or facility, and easy access is necessary for maintenance and emergency situations.
The sign typically features a red circle with a diagonal line running from the upper left to the lower right, superimposed over an image of a switchboard or electrical panel. The words "Do Not Block Access To Switchboard" are usually written in bold letters underneath the image.
If you see this sign, it is important to obey it and ensure that the switchboard is never obstructed or inaccessible. This will help to prevent electrical hazards and ensure that the electrical system can be maintained and serviced safely.