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How does a fuse wire save an appliance from high electric current?
Wiki User
∙ 14y ago
A fuse link will melt and interrupt the flow of current to the appliance before it can get high enough to damage the appliance or wiring.
Wiki User
∙ 14y ago
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The fuse 13 A in a plug is intended to?
This is intended to protect the flex of a plug. A fuse is a little wire that all of the electricity coming into the appliance flows through. If something goes wrong and the current is higher than it should be, this fuse will overheat and burn out, thus breaking the wire and cutting the flow of electricity. If there was no fuse, the circuit would not be broken, this could overheat the plug and it could possibly catch fire. The 13A means that that fuse is set to 13 Amps of current, If it gets anything over that, the fuse will blow. Depending on the appliance the number will vary. 13A fuses are mostly used in the flexes of an appliance that have a high voltage, such as heating appliances like kettles fan heaters. When choosing a fuse for a plug you must choose a fuse that is higher than the current that the appliance has as current is higher when things are first switched on. If you choose a fuse that is too low for the appliance, the fuse will keep blowing out. Never choose a fuse that is too high for an appliance as this will not blow out if the current is too high.
A fuse wire is used to?
to prevent an unduly high electric current to pass
Why are the fuses in high current appliances very thick?
so the electric current flowin threw them doesnt overheat the fuse and open the curcuit.
Why the high resistance earth fault in the appliance increase the risk of electric shock when using appliance in earth situation?
If the earth connection has a high resistance it is not capable of acting as a true earth. For example, the high resistance might mean that the fuse or circuit-breaker will fail to operate when there is a fault.
A fuse will melt if the?
A fuse is made with the material which offers high resistivity. When a large amount of electric current passes through the fuse, heat above the melting point of fuse is produced. Hence, the fuse melts.
What is a high rupture capacity fuse?
This is a fuse that has the ability to interrupt a high fault current.
Why is it important that the correct fuse rating is installed as stated by power tool manufacturer?
Power tools draw current. It can be visualised as the volume of electricity consumed in a given time. For example, a home vacuum cleaner draws more volume of electricity (high current) than, say, your bedroom light bulb (small current). If a fault occurs in an appliance that will draw an exceedingly higher current, without protection, will generate overheating of the appliance, or worse a fire. So a fuse, which is rated at a current just higher than the normal current of the appliance, will blow (or activate) in the event of extreme current flow, thus shutting off the power to the device and prevent further damage.
What is link in electric circuit?
Sometimes in electrical terminology, a fuse is also called a fusible link. Probably referring to the weakest point in the chain or circuit. Under high current stress the "link" (fuse) will break and open the circuit and stop the current flow.
What material is used to make a fuse wire?
The material suitable for making a fuse wire should have a low melting pt. so that it can easily melt and cut off the flow of current and save the electrical appliance...
What does an fuse do in an circuit?
A fuse protects the (expensive) circuit for too high currents. When the current becomes too high the (cheap) fuse melts and the current is stopped, preferably before damage has been done to the circuit.
What is the advantage of electric fuse in an electric circuit?
A fuse is intended to be a weak link of thin wire that goes in series with a circuit. If the current becomes too high for any reason, the fuse wire melts and cuts off the supply. Without a fuse, the circuit will heat up until something else melts, which might cause a fire. So fuses are necessary to prevent electrical fires.
What is usually carried on a pylon?
High Voltage Electric Current.
