Final answer:
To prevent injury while maintaining equipment, you should ensure that the equipment is turned off, unplugged, and disconnected. This includes procedures like switching off a microscope and unplugging it before covering it for protection.
Step-by-step explanation:
To prevent injury while maintaining equipment, it is crucial that the equipment is turned off, unplugged, and effectively disconnected. This safety measure ensures that the equipment does not receive any power, which could lead to accidental activation or electrical shock during maintenance. For example, when you are finished using a microscope, the proper procedure is to first switch it off. After confirming that the microscope is off, you should then unplug it from the power source. This step is followed by gently wrapping the cord around the base and covering the microscope with its plastic cover to protect it from dust and damage.