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No, a circuit box is just a metal or plastic box that encloses the wiring and has means for mounting a cover plate. Most circuit boxes are for mounting outlets or switches, but one type (also called the junction box) is only intended as a junction point for wiring for multiple circuits and its cover plate is solid (no openings).

The wires that pass through a circuit box (usually together in a common plastic jacket) will be identified as:

  1. hot - black (220VAC service opposite phase hot - red)
  2. neutral - white
  3. ground - green
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How do you connect the 3 pin plug?

One pin for phase other pin for neutral and third one is for earth/ground wire. In India the right pin is for phase, left pin is for neutral and pin on top side is for ground wire. This third top side pin is slightly bigger and longer compared to phase and neutral pins.


Why would you put a fuse on the neutral side of an electrical circuit?

It does not matter what line in (the phase or neutral) is the fuse. In a closed series circuit current in all areas of the circuit is equal. It's best to put the fuses in both wires (phase and neutral) and even better for each individual device in the chain.


Can a burnt out wire cause you to lose a neutral connection?

Not usually. When a wire burns and grounds out the breaker will trip. Wire burns are usually centered around terminal connections points. If a connection becomes loose heat will be produced and this heating action is what burn the insulation on the wire. The neutral wire on the other hand is not switched so it is less likely to have terminal connection points that can become loose. In a circuit the neutral wire is connected under a wire nut with other neutral extensions in the circuit and then connected to the neutral buss in the distribution panel. There is very little to go wrong on the neutral return side of the load wire.


Why is the neutral point grounded on a transformer?

The secondary side (output) of a three phase transformer develops a "separately derived system". That is why you do notsupply a neutral to a three phase transformer. It develops its own reference to ground by being bonded to the transformer casing and to a substantial earth ground, such as a ground rod. The XO tap on a transformer provides the neutral to the secondary line. It will have a double wire lug. The neutral wire going to the panel being supplied goes under one lug and the same size wire is to go to the ground lug on the transformer chassis The ground lug is also a double with the other lug to be wired to the earth ground.


Clear wiring which one will be hot?

Even though it is a clear wire, there will be a tracer of raised or indented rib on the wire to identify the neutral. You may have to run your thumbnail around the wire to feel it rather that see it. This ribbed identified wire will be the neutral leaving the other wire to be connected to the hot side of the circuit.

Related Questions

Why neutral is ground in the circuit?

In the transformer at the secondry side one end of the winding will make star connection means 0 point there will be no voltage at that end if any leake voltage appear at that point it have to ground that what all the neutral points to be grounded


Why neutral to ground voltage is 0v sometime 120 v in same connection?

When the neutral is connected to the ground they are at the same potential which is zero volts. If the neutral gets disconnected from the ground then a potential of 120 volts will be measured from the open neutral to ground. This voltage is being measured from the neutral side of the load that is on the circuit. because they are actually the same cable at sub station, but split by the time they come to the board, long answer involved but that's the jist of it!


What is the procedure to connect two circuits without losing the output voltage of first circuit which is transfered to the second circuit?

I assume you are talking about 120volt electrical circuits ???? If so, just wire them in parallel. In other words, connect the black wire to line side on each circuit and the white wire to neutral on each circuit. The bare ground wire goes to ground (green) At each circuit will be 120 volts AC. Do not exceed the maximum current of the circuit breaker supplying the current (typically 15 - 20 amps)


Where is the ground circuit for brake lights on a Honda civic?

The ground circuit for your Honda Civic brake lights can be found on the rear frame rail. The ground circuit will be on the drivers side frame rail.


How do you connect the 3 pin plug?

One pin for phase other pin for neutral and third one is for earth/ground wire. In India the right pin is for phase, left pin is for neutral and pin on top side is for ground wire. This third top side pin is slightly bigger and longer compared to phase and neutral pins.


When a GFCI senses a fault the ground-fault current can originate from what either the hot or neutral wire on the line side of the GFCI either the hot or neutral wire on the load side of the GFCI?

In a very real sense, a "ground fault" cannot come from the neutral side, since, if your wiring is performing as designed, there should be little potential between the neutral and ground. A ground fault is said to occur when the current OUT, through the "hot" side is not equal to the current BACK, through the neutral, meaning that current is leaking to somewhere else... such as through your body. Having said all that, it is certainly possible that you could cause a GFCI to trip by introducing current to the neutral from a circuit that does not go through the GFCI breaker; but that would involve non-standard wiring practices.


How do you generate short circuit current?

A short circuit occurs when the hot side of the supply comes in contact with ground.


Why would you put a fuse on the neutral side of an electrical circuit?

It does not matter what line in (the phase or neutral) is the fuse. In a closed series circuit current in all areas of the circuit is equal. It's best to put the fuses in both wires (phase and neutral) and even better for each individual device in the chain.


What is the function of the ground in a circuit?

Ground can be a confusing term, as it can have two separate meanings. Here's one way: Conventionally, the ground of a circuit is the return line for the current. If you have a battery hooked up to a resistor, then the "positive" side of the battery terminal, the side that carries positive voltage, is the "hot" side, and the other side that completes the circuit back to the negative terminal of the batter is "ground." That said, ground is technically anywhere in the circuit you want it to be. Ground is what the designer of the circuit decides is 0 volts, and every other voltage is relative to ground. Another use for the term "ground" is the safety measure built into our electrical system, now. It's a short circuit to the Earth so that if something in your circuit breaks down, the extra, potentially dangerous current, can flow directly to the Earth, and not build up dangerous charges in the machine, etc. The bottom hole of your wall outlets is this safety ground. But, to restate what I said above: In terms of the circuit, ground is technically what you define to be 0 volts.


Is the neutral wire energized when the appliance is off?

No current flows in the circuit when the circuit is open, as in when the appliance is switched off. The voltage is on the "hot" side of the switch when it is in the open position but the neutral is not energized until the switch is closed.


What is the main meaning of series circuit?

"One after the other," as opposed to a parallel circuit, or "side by side."


What is indicated by reading of battery voltage on the ground side of component?

That a short to ground exists in the circuit.