What Is the Purpose of a Fuse?
The purpose of a fuse is to protect the consumer against electrical shock or fire hazard from a malfunctioning electronic item by protecting the circuit. Discover the purpose of a fuse with instructions from an experienced carpenter and construction specialist in this free video on home repair.
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Hello, my name is Mark Blocker, in this segment we're going to cover what is purpose of a fuse. A fuse in home applications is simply a protection circuit and what it's designed to do is protect the consumer against electrical shock or fire hazard from a malfunctioning electronic item. Most all electronic equipment or electrical items have some type of protection circuit in it be it a fuse or a circuit breaker. This particular unit uses a fuse and what a fuse is and how it works is electrical current or an electrical voltage will come in at one end of the fuse and exit out the other end of the fuse. The fuse contains a small filament that's designed to limit how much current can travel through that fuse. Each fuse has a different rating, this particular one is a one amp rating. So if anything in this device should exceed the current rating of one amp, it will pop the fuse, disconnecting the electrical circuit from the house. And the reason for this is as I said, if something should malfunction in an electrical device, it could put the voltage into the casing of the device which could cause an electrical shock and death or it could cause the system to overheat from a short and cause an electrical fire. So the purpose of a fuse is a safety circuit to prevent electrical shock or prevent electrical fire from happening in case of a short or a malfunction.