Quick Answer: Which Wire Goes To The Fuse?

What will happen if fuse is connected to neutral wire?

The answer is simple.

The current flows in excess, but the circuit doesn’t disconnect.

The same may happen if the fuse is connected to neutral.

Because the fuse can disconnect the circuit only when the excess current flows completely through the neutral..

What are the 3 wires in a plug?

The plug contains three wires – the live, neutral and earth wires. In a plug, the live wire (brown) and the neutral wire (blue) are the two wires that form the complete circuit with a household appliance. The earth wire (green and yellow) does not normally form part of the circuit and is included as a safety wire.

Why do plugs have 3 wires?

This is used when the appliance has a metal casing to take any current away, in case if the live wire comes in contact with the casing. A 3-pin plug consists of three pins (hence the name). … The 3-pin plugs are designed so that electricity can be supplied to electrical appliances safely.

What happens if you don’t use a fuse?

Originally Answered: What will happen if we don’t use fuse in a circuit? A fuse is the weakest point in a circuit. … Most small electronic devices do not have a fuse at all. Not needed, as the available power from the battery or wall wart have limited power ability, and will not cause a fire or other damage.

Which wire is connected to the fuse?

The fuse is connected to the live wire so that the appliance will not become charged (have a potential difference of 230 V) after the fuse has melted due to excessive current. Fuses must be fitted onto the live wire so that when it blows, it will disconnect (isolate) the appliance from the high voltage live wire.

What will happen if switch is connected to neutral wire?

1 Answer. If switch is connected in the neutral wire, an electric appliance, e.g., an electric iron will remain connected to the live wire even when the switch is off and so if any one happens to touch the appliances; he of she will get a shock which is sometimes fatal.

What Colour wires go in a plug?

Connection GuideRed (Live)Brown (Live)Connects into (L) terminalBlack (Neutral)Blue (Neutral)Connects into (N) terminalGreen (Earth)Green & YellowConnects into (E) terminal

What happens if a plug is wired wrong?

But here’s the catch: If you connect the circuit wires to the wrong terminals on an outlet, the outlet will still work but the polarity will be backward. When this happens, a lamp, for example, will have its bulb socket sleeve energized rather than the little tab inside the socket.

How do you fix a fuse wire?

– Loosen the terminal screws and remove the old and broken wire. – Cut the new fuse wire so that it is long enough to wrap around both terminal screws and cross the fuse carrier. – In a clockwise direction, wind the wire around one terminal screw. – Tighten this terminal screw into place.

Does the earth wire have a fuse?

The Earth Wire Electrical appliances with metal cases usually contain an earth wire. … This larger current melts the fuse in the live wire breaking the circuit and isolating the appliance from the live wire. The earth wire and the fuse together protect the user and the appliance.

Where do the wires go in a plug?

Unscrew the little screws on each of the plug’s pins. Insert the twisted copper wires into the holes in the pins. The green and yellow wire must always be inserted into the top pin. The blue wire is inserted into the left pin (the pin is marked with a blue spot or the letter N).

Why fuse is not connected in parallel?

A fuse is nothing more than a short length of wire designed to melt and separate in the event of excessive current. Fuses are always connected in series with the component(s) to be protected from overcurrent, so that when the fuse blows (opens) it will open the entire circuit and stop current through the component(s).

Why is electrical fuse needed?

A fuse(s) is needed in any electrical system (AC or DC). These protection devices react to the amount of heat being produced by electricity passing through wires and/or components. They are used so as to protect wires and components from the extreme heat produced should there be an electrical overload or short circuit.

What happens if fuse is too big?

When oversized fuses are installed, excessive amperage will occur in the event of a circuit fault such as a short to ground. This will cause overheating of the circuit and melting of insulation. In layman’s terms , if a fuse keeps blowing, don’t install a larger one.