Lockout/Tagout is a safety procedure used primarily in manufacturing, industrial, and construction settings. Its purpose is to prevent machinery or equipment from being unintentionally operated while a worker is performing maintenance or repair tasks. The process typically involves two key steps： locking out the energy-isolating devices to physically prevent operation, and tagging out the equipment to indicate that it is unsafe to operate. By utilizing lockout/tagout devices, companies ensure that workers are not exposed to hazardous energy sources such as electricity, gas, steam, or mechanical power during repair activities.