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Purpose of the fuse is to save circuits from the damage due to high current and voltages caused during fault conditions. These faults affects the live wire. So fuses are kept there. Morever other parts such as ground, do not need this protection, since these high voltages gets automatically earthed.

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12y ago
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12y ago

If you place the fuse on the ground side, if the live (hot, or positive side) were to wear and short out to ground, the fuse would not do any good.

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Q: Why is fuse always placed in the live wire of a circuit?
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Related questions

Why the fuse is placed in live wire only?

So that the live wire is isolated when the fuse blows. If a fuse was placed in the neutral, the equipment would still be live when the fuse blows.


Do you connect a fuse to the live wire or the neutral wire?

A fuse is typically connected to the live wire in a circuit. This is done to protect the circuit from an overload or short circuit, as the fuse will blow or trip and cut off the current flow if there is an issue.


Why is the fuse always on the 'live' side of the appliance?

Placing the fuse on the 'live' side helps to disconnect power before it reaches the appliance. This reduces the risk of electric shock when handling the appliance. It also ensures that the circuit is broken immediately in case of a short circuit or overload.


What does fuses and circuit breakers protect the wire or equipment?

A fuse protects a circuit, equipment, or person by being the 'weakest link'. In case of too much current flowing, it opens, breaking the circuit and not allowing electricity to flow. This prevents a continual overcurrent, and associated heat and fire.


What wire in a circuit should contain the fuse?

The wire that connects the power source to the rest of the circuit should contain the fuse. This is typically the wire that leads directly from the positive terminal of the battery or power source. Placing the fuse in this wire helps protect the circuit in case of a short circuit or overload.


Why is the switch for an appliance always placed in the live wire?

If a switch was on the neutral wire the live wire would still be at the mains potential even when the switch was off. This would cause on en electric shock when one handles any conductor linked to the live wire


Why is the fuse of an appliance always on the live side?

See Discuss Question below.


Why is it important that the live wire not the neutral wire is connected to the fuse?

The live wire is connected to the fuse to ensure that the circuit is interrupted in case of an overcurrent or short circuit, which helps prevent fires and electrical hazards. The neutral wire completes the circuit and does not carry any current in normal circumstances, so connecting it to the fuse would not offer the same protection.


Why should a polarity test be conducted out on a lighting circuit?

to make sure the protection device such as fuse are connected at the live part


What is the working of fuse?

In each live line supply either household automotive or even commercial there is a fuse which when the current exceeds that fuses capacity it blows thus protecting the circuit


What happens when you connect live wire to ground?

Connecting a live wire to ground can cause a short circuit. This can lead to a sudden surge of electricity flowing through the circuit and may result in a tripped circuit breaker or blown fuse, as well as potential damage to electrical equipment and a risk of fire. It can also pose a serious shock hazard to anyone in contact with the grounded object.


What is the work of fuse box?

In each live line supply either household automotive or even commercial there is a fuse which when the current exceeds that fuses capacity it blows thus protecting the circuit