Electrical circuits and components are rated to withstand a certain amount of current flow. Excessive current in a circuit results in overheating and destruction of components. Various protective methods can prohibit the occurrence of overheating by creating a weak link in the circuit that will fail under certain conditions. A commonly used protective device is the fuse.
" State the purpose of a fuse.
List common types of fuses.
Explain the ratings used for fuses.
Describe how to check for an open fuse."
You will not be required to pass the knowledge check questions to move on to the next lesson. These will not be counted as a grade, but each question gives you insight into what you should have learned and the sorts of things you'll need to remember moving forward.
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