Why Is It Dangerous To Use The Wrong Fuse In An Appliance?

Do fuses have resistance?

Fuses are designed to have very low resistance so that they don’t unduly interfere with the circuits that they are protecting.

This low resistance means that the voltage drop across the fuse will be very small..

Will an appliance work without a fuse?

While most of us know that without a fuse, a household plug, and whichever appliance it’s attached to, won’t work. … A plug fuse is a safety device which is connected into an electrical circuit to prevent excessive current flow during fault conditions.

What happen if fuse rating is too high?

If a fuse with a much higher rating is chosen, it will allow a current much greater than the current drawn by the appliance to pass. This large current will cause the appliance to overheat and be damaged before the fuse blows.

Can I use a 10 amp fuse instead of 15?

Yes, the 15 Amp fuse may be sized for a device in that particular circuit, and the 10 Amp fuse may be very short lived.

Can I replace a 10amp fuse with a 13 amp?

The 13A fuse in place of a 10A fuse wouldn’t directly cause any problem – but then, if there’s a problem with the appliance you’re using, or if you plug in too many things and the current goes over 10A but under 13A, then under the new fuse the extension lead will keep working whereas the old fuse would have blown.

Is it OK to replace a 3amp fuse with a 5 amp fuse?

If you replace it with a 5A fuse you will lose part of the protection the 3A fuse was intended to provide. In case of a failure of the device the fuse is suppose to protect, the result of using a larger fuse could be to damage the device to the extent that it could not be repaired. It could also start a fire.

Can I put a 5a fuse in a 13a plug?

No. You must use a 5A fuse. Using A 13A fuse is a fire risk. The fuse is there to protect the adapter in case of a fault.

What will cause a fuse to keep blowing?

What Happens When a Fuse Blows. There are two conditions that can cause a fuse to blow. First, and most commonly, when too many lights or plug-in appliances draw power from the circuit, it can overload the capacity of the fuse and cause the metal ribbon inside the fuse to melt through.

What is fuse short answer?

Fuse is a piece of wire of a material with a very low melting point. When a high current flows through the circuit due to Overloading or a Short circuit , the wires gets heated and melts. As a result, the circuit is broken and current stops flowing.

What happens if you use a lower amp fuse?

Do not use a fuse with a lower rating– don’t put a 20 amp fues in a 30 amp circuit–because it probably will blow prematurely. Conversely replacing a 20-amp fuse with one rated at 30 amps is dangerous because it may not blow soon enough and damage an electrical component or start a wiring fire.

Why does my 15 amp fuse keep blowing?

If the cigarette lighter fuse is 15 amps, then a draw of more than 15 amps will cause it to blow. … And if the problem in your circuit is actually some type of short, putting in a larger fuse may cause the wiring to heat up to the point where it could melt or even cause a fire.

Is blowing a fuse dangerous?

Never replace a blown fuse with one of a higher amperage, which can be dangerous or can cause damage to your electrical panel wiring. You can take the blown fuse to a hardware or home store for help in getting an exact replacement. Consider keeping extra fuses on hand so you’ll have them when you need them.

Is it OK to use a higher amp fuse?

Do not replace a blown fuse with one that has a higher amperage rating. The fuse has a specific amperage rating because it is intended to be the weak link in the circuit to protect the electrical components. A blown fuse indicates excessive current has entered the circuit.

How do you know if a plug fuse is blown?

Look at the fuse wire. If there is a visible gap in the wire or a dark or metallic smear inside the glass then the fuse is blown and needs to be replaced.

How do you fix a fuse that keeps blowing in your house?

Follow these easy steps to fix a blown fuse:Unplug electrical appliances. First and foremost, it’s important to identify where the outage occurred. … Turn the power off. Next, you will need to turn off the main power to the fuse box. … Find the fuse box. … Identify the broken fuse. … Replace the fuse. … Test your new setup.

What happens if you use the wrong fuse?

Fuses are present to protect the components of the electrical system. Rather than destroying the circuit when there is a surge of power, the fuse blows to protect it. … If you use a fuse with the wrong amperage, the fuse won’t blow as intended, damaging the circuit and resulting in a much larger repair bill.

Can I use a 30 amp fuse instead of 15?

That wire is rated to carry 15 amps. To carry 30 amps, you need 10AWG wire, and the Shadow just isn’t wired with it. Running 30 amps through the tail light circuit will eventually ruin your wiring harness. (read that as “expensive.”) True, it won’t be instantaneous, but it won’t take too long at 30 amps.

What happens if you put a 20 amp fuse in a 15 amp slot?

If you are replacing it in your house mains and if your house wirings are not rated to handle more than 15 amps then it may melt the insulation of wire and cause an internal short circuit. Your 20 amps fuse would save your house from burning down but it would cost a lot to replace all the house wirings.

Is the fuse connected to the earth wire?

Fuses. A fuse provides a built-in fail-safe to the electrical circuit for a device. The fuse contains a thin wire that will melt if the current gets too high. If there is a fault that causes the casing of the device to become live, a large current will flow through the low-resistance earth wire.

Can a blown fuse cause a fire?

More often, the issue is a blown fuse or tripped circuit caused by excessive electrical current flowing through the wires. The fuse or breaker will automatically cut off the current to prevent the wires from overheating and causing a fire.

What are the 3 types of fuses?

AC FusesImage Source. Rewirable Fuses. … Image Source. Cartridge type Fuses. … Image Source. D-type Cartridge Fuse. … Image Source. Link Type Fuse. … Image Source. Blade and Bolted type Fuses. … Image Source. Striker type Fuse. … Image Source. Switch type Fuse. … Image Source. HV (High Voltage) Fuses.More items…•