Final answer:
If your machine comes in contact with an overhead or underground power line, do not touch the machine and call emergency services and the power company immediately. Attempting to disconnect the machine yourself could result in electrocution.
Step-by-step explanation:
If your machine comes in contact with an overhead or underground power line, it is important to follow certain steps to ensure your safety. First, do not touch the machine or any part of it while it is in contact with the power line. Call emergency services and the power company immediately to report the incident. They will take the necessary steps to safely disconnect the machine from the power line. It is crucial to remember that electricity can be extremely dangerous, and attempting to disconnect the machine yourself could result in electrocution. It is always best to leave this task to professionals.