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Why is an electrical switch always placed on the line side of the wire?
Wiki User
∙ 14y ago
Hots are dedicated to a specific circuit. Neutrals can be shared by other circuits. All the current in a circuit must travel through the hot. This is not always the case with the neutral. The purpose of a switch is to stop the potential voltage from being applied to the load. With the switch on the neutral side of the load this condition is not fulfilled. By shutting the load off with a neutral switch you could not work safely on the load as the potential to ground will still be there and create a shock hazard. <><><> As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed. Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoThe intent is to minimize the potential for an electric shock. The neutral wire is supposedly zero or near zero potential, with both sides of the 220 line "hot" as compared to the center tapped neutral.
If everyone follows the Uniform Building Code there will be significantly fewer electrocutions.
Wiki User
∙ 13y agoThe purpose of a fuse or circuit breaker is to stop current flow in the case of a short circuit. If you didn't stop the current from flowing, it could cause a fire, harm a person, damage the equipment, etc.
If you were to accidentally connect the live (or "hot") wire to any grounded object, current will flow due to the potential that exists between the live and ground. So you need to put a fuse somewhere. If you were to put the fuse in the ground or neutral wire, that would protect you in the case that the hot touches the specific ground or neutral wire that is fused, but there are many alternate paths to ground such as through your body and to the earth. Therefore it's safest to put the fuse in the one live wire rather than the many potential paths to ground.
Wiki User
∙ 13y agoLive wires carry current and our main purpose of using fuse is to break the circuit , whenever there will be large current flows through it . That's why fuse is connected in the live wire rather than the neutral wire...
Alternative Answer
A short circuit fault to earth or ground will bypass the neutral wire so, if the fuse were to be installed in the neutral, it would not operate.
A short circuit between line and neutral would remain dangerous, if the fuse was in the neutral, because the circuit would still be 'hot' up to the point of fault.
Wiki User
∙ 15y agoFor a circuit breaker to work properly it needs the circuits full load amps to travel through it. It can be used as a disconnect device also, this is why it is at the front of the circuit. Voltage from bus bar through the breaker and then connected to the circuit wire. If the breaker was on the neutral side of the circuit and the breaker was used for a disconnect, it would shut the load off but all the wiring ahead of it would still have the voltage potential there. Touching any part of that circuit and ground would give you a shock even though the breaker was shut off.
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Why switch is always connected in the phase wire?
First of all, the correct term is 'line' and not'phase' wire. The reason a switch is always placed in the line conductor, rather than in the neutral conductor, is that its function is not simply to break the circuit, but also to ensure that the circuit's load is disconnected from the line potential. If the switch were to be placed in the neutral conductor, it would still break the circuit, but the load will still be at line potential and present a shock hazard to anyone attempting to work on the load (e.g. to remove a lamp from its holder).
When wiring an in-line switch does it go on the hot or neutral side?
The switch should always be on the HOT side. This way, when the switch is OFF, the light fixture is SAFE. Otherwise, you would have a HOT fixture with no clear return path when the swith is OFF -- very dangerous.
What size circuit breaker should be used to carry 22.9 Amps?
If this is a constant 23amp draw, best to go with a 50a breaker. Overkill in electrical is always a safe method. Need to allow for spikes or additional load if something else is inadvertently placed on that same line
How do you wire a dishwasher with black white and green wires?
In the electrical code in use in the United States, black is the "hot" side of the line, white the "neutral" and green is always "Ground".
Why is it always connected in the phase or line wire to the switch and not the neutral wire?
because its much safer to switch the hot wire then the neutral wire because if you are working on a light fixture for example and the switch is off if you ground yourself out to the neutral you become the load or return. a neutral shock can me more dangerous at times
Which is the safest position for the switch when an appliance is used?
Your question is rather vague but, for a.c. systems, a switch must always be placed in the line conductor, neverthe neutral conductor.
On which line is the switch of electrical appliance connected?
A Switch on a domestic supply has always got to be on the LIVE part of that circuit. A double pole switch switches both the LIVE and NEUTRAL off together.
Why switch is always connected in the phase wire?
First of all, the correct term is 'line' and not'phase' wire. The reason a switch is always placed in the line conductor, rather than in the neutral conductor, is that its function is not simply to break the circuit, but also to ensure that the circuit's load is disconnected from the line potential. If the switch were to be placed in the neutral conductor, it would still break the circuit, but the load will still be at line potential and present a shock hazard to anyone attempting to work on the load (e.g. to remove a lamp from its holder).
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
What is L1 and L2 on a light switch?
in electrical its usually uses I1 and I2 .....i3 etc they actually stands for intensity (ampere).you might have notices these must be always in series in a line
Do two radii always make a diameter?
Only if they are placed in such a way as to make a straight line ,i.e., they should be placed at 180 degrees to each other.
When wiring an in-line switch does it go on the hot or neutral side?
The switch should always be on the HOT side. This way, when the switch is OFF, the light fixture is SAFE. Otherwise, you would have a HOT fixture with no clear return path when the swith is OFF -- very dangerous.
Is the circle or straight line symbol on or off for an electrical switch?
Simply put, the straight line is the on, and the circle is the off. These symbols represent an electrical circuit. The Straight line represents a closed circuit, which means the switch is on and the electric current can travel through it, and the circle means and open circuit, where the current cannot travel because the circuit is open. A quick trick to remember: "O, Open, Off".
How do you make a circuit diagram?
Electrical SymbolsA Line Is A WireA Line With A Circle Around It With A Cross In It Is A Light BulbA Buzzer Is Wene The wire Gos Up And There Is A Box Above ItA Switch That Is On Is A Line Then A Dot Then A Line Then A Dot And A LineA Switch That Is Off Is A Line A Dot A Diagonal Up Half Way The A DotThanks For ReadingI Got This From A Book About ElectrictryConnor
How do you keep your furnace off?
Turn the thermometer switch to offTurn the electrical service switch by the furnace to offTurn off the main breakerAfter turning off the main breaker disconnect the power line to the furnace
91 Toyota Camery AC Low pressure switch location?
I don't know about the 91, but the 04 has the high/low switch in the liquid line[the small line] over on the passenger side adjacent to the condenser[in front of the radiator] Look for a sensor with electrical leads.
What size circuit breaker should be used to carry 22.9 Amps?
If this is a constant 23amp draw, best to go with a 50a breaker. Overkill in electrical is always a safe method. Need to allow for spikes or additional load if something else is inadvertently placed on that same line
