In the event of an x-ray machine malfunction, where should the local rules indicate the position of the machine isolator switch?

The position of the machine isolator switch should be indicated by the safety zone limit to ensure that any potential hazards associated with x-ray operation are minimized. The safety zone is designed to protect individuals from exposure to radiation during imaging procedures, so having the isolator switch located in this area allows for rapid access in case of a malfunction. This is critical because in an emergency situation, the ability to quickly disconnect the machine can help prevent unnecessary radiation exposure to both patients and staff.

Placing the switch in the safety zone limits ensures it's within a designated area meant to control access and ensure safety protocols while also ensuring it is accessible in an emergency. This enhances the safety practices surrounding the use of x-ray equipment in dental settings.