0
Most fuses work the same, they break the connection to the power source so that you don't receive a severe electric shock and die or that a fire doesn't start and you burn to death. The fuse helps protect you from a power surge or overheating.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
How does the fuse wire save your electrical appliances?
The fuse wire is rated for a specific amount of amperage. If the amperage exceeds that rating, the fuse wire will quickly melt. The current flow in the circuit is interrupted, thereby protecting the appliance from an overload condition.
If an appliance does not work at all when you plug it in and turn the switch on the appliance circuit is what?
The appliance's circuit is open.
If you know the power rating of an appliance and the voltage of the line it is attached to you can you calculate the current used by the appliance?
If I understood your question correctly, 'If you know the power rating of an appliance and the voltage of the line it is attached to, can you calculate the current used by the appliance?' You are looking for this equation: I = Current (Amps) P = Power Rating (Watts) V = Voltage (Volts) I = P/V This equation is useful when calculating the fuse rating for an appliance. For example, and appliance rated at 2400 watts, supplied with 240 volts has a 10 amp maximum. I = 2400/240 however, when it comes to paying for electricity, the energy is measured in units, which can be found using the equation: P = Power (kW) t = Time (Hours) Energy Used (Units) = Pt for example, an appliance rated at 2 kW used for 3 hours, uses 6 units of energy. Units = 2*3
Why is the fuse always on the 'live' side of the appliance?
If there was a fault to earth the casing of the appliance would remain live otherwise. Also there could be a large current from live to earth which could heat the wires to the extent that your house burns down. This is expensive! Neutral is near earth potential anyway. <<>> The fuse should be the first device in any circuit. When a fault occurs the potential across the circuit should become zero to ground. If the fuse was located on the downstream side of the load it would still open the circuit but every part of the circuit upstream from the load would still have a voltage potential to ground. Any one working on the circuit upstream from the load has the potential to receive a shock even though the fuse has opened the circuit. So to answer the question the placement of the fuse in a circuit is for safety reasons.
How does an appliance become charged?
Two different methods, either: 1) Faulty internal wiring is the most common cause. A live cable is somehow electrically connected to appliance. 2) Static build up, can be caused by internal mechanical movement. Note that the appliance may appear charged if a static shock is received, but the charge is not actually received from the appliance, but instead delivered to the appliance from the person.
What will happen to an appliance if the fuse rating is less than the current an appliance needed?
The appliance will not work because the fuse will blow every time.
How does a fuse wire save an appliance from high electric current?
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.
Can you use a 32V 15A fuse if the appliance calls for a 125V 15A fuse?
No
What are the uses FUSE?
They are a safety feature in the case of an energy surge - without the fuse damage could be dome to the appliance, with the fuse if their is a surge of electricity it burns out the fuse so can't travel all the way to the appliance damaging it.
This device will burn out before an appliance is ruined?
A fuse
Why is it dangerous to use the wrong fuse in an appliance?
it can shock you
What is the fuse rating of 600watt appliance on a 220 volt supply?
The fuse rating should be 5 amps
A fuse should be conected between?
A fuse should be connected in the live wire, before reaching the appliance.
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.
What are the functions of an electric fuse in a an electric appliance?
To prevent an overload or short from causing the wiring in the circuit supplying power to the appliance from overheating and possibly catching on fire. The fuse is there to protect the wiring and not what is plugged into that circuit.
Why must not you replace a fuse in a plug with an iron nail even the appliance still work?
A fuse is specifically rated to a certain amount of power. When this is exceeded the fuse 'melts' and will not allow the power limit to be over extended. A nail will allow the appliance to work but offers no protection.
Why is the fuse of an appliance always on the live side?
See Discuss Question below.
