Final answer:
To reduce the risk of electrocution, always plug in the device before turning it on and turn it off before unplugging.
Step-by-step explanation:
When working with electrical devices, it is important to follow safety procedures to reduce the risk of injury or electrocution. One important safety step is to never turn on the device before plugging it into the aircraft, and always turn it off before unplugging. This helps prevent electric shock and ensures the device is properly connected.