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Earth wire is meant to protect the user in case there is earth fault in the device or circuit. Only earth wire alone is not sufficient. It needs to be provided with suitable circuit breaker that breaks the circuit automatically.

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โˆ™ 6y ago
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โˆ™ 8y ago

In electrical terminology it is called the ground or earth wire. It should never be removed from a circuit because if a high amperage fault occurs on the circuit, it is this wire that carries the fault back to the distribution and trips the breaker or fuse.

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Q: In electrical circuits what wire protects the operator?
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What limits the current that flows through a circuit for a particular appllied DC voltage?

The voltage applied and the resistance across it.


Is a ground fault circuit breaker nessesary for a washing machine?

A ground fault circuit breaker essentially senses the difference currents flowing in the incomming & return wire of an electrical supply circuit. In normal cases ideally the difference must be zero or very close to it. Whenever there is a fault & the electrical path also takes any other route e.g a operator who has accidentaly touched any live part of the equipment, there is a current flow imbalance in the input & return path of the electrical supply circuit. This imbalance is sensed & used to trip the main electrical circuit & thereby limits the Intensity & Duration of the Electrical current flowing through the operator. This results in the operator feeing a small jolt instead of a nasty or hazardous electrical shock. From the above it is obvious that ground fault circuit breaker is essential for safety of the operator especially where the applicance is working with water or in watery surroundings & there is every chance of the water or operator accidentally comming into contact with a live electrical circuit & thereby create a safety.


What are electrical contacts?

Two answers for this question. An electrical contact is any point in a circuit that a wire connects to, such as a screw or terminal block. The term is also used when referring to control circuits. There are contacts inside Relays, Ligthting contators, and motor starters. They can be called N.O. for normally open, and or N.C. for normally closed. They "Make" of "Break" and electrical circuit.


Why are electric ranges wired to separate circuit breaker?

As a range is a high current device, the electrical code stipulates that it has to have its own breaker. The breaker protects the wire feeder. An electric range breaker is set to trip at 40 amps. Using a smaller wire that #8 is not allowed as their ratings are below that of the #8 wire. #10 wire rating is 30 amps, #12 wire rating is 20 amps, and #14 wire rating is 15 amps.


Where does the wire come from in an electrical circuit?

The wire comes from the installer or manufacturer of the circuit.

Related questions

Is it common for the hot wire to be used in electrical circuits?

Yes, it is common for the hot wire to be used in electrical circuits to carry the current from the power source to the electrical devices.


What are the standard fan wiring colors and their corresponding functions in electrical circuits?

The standard fan wiring colors are black, white, and green. Black is for the hot wire, white is for the neutral wire, and green is for the ground wire in electrical circuits.


What is the difference between the line wire and load wire in electrical circuits?

In electrical circuits, the line wire carries the incoming electrical current from the power source, while the load wire carries the current to the device or appliance being powered. The line wire is typically connected to the power source, while the load wire is connected to the device that needs electricity.


What is the purpose of the common wire in electrical circuits?

The purpose of the common wire in electrical circuits is to provide a return path for the current to flow back to the power source, completing the circuit and allowing electricity to flow properly.


What is the common wire in electrical circuits and how is it used in wiring systems?

The common wire in electrical circuits is also known as the neutral wire. It completes the circuit and provides a return path for the current to flow back to the power source. In wiring systems, the neutral wire is connected to the neutral bus bar in the electrical panel and is used to balance the electrical load in the circuit.


How does the fuse wire save your electrical appliances?

The fuse wire protects electrical appliances by breaking the circuit when there is an overload of current. This prevents excessive current from damaging the appliance by melting the fuse wire and interrupting the flow of electricity. The fuse wire acts as a safety feature in electrical circuits to prevent electrical fires and damage to appliances.


What is the neutral wire used for in electrical circuits?

The neutral wire in electrical circuits is used to complete the circuit and provide a return path for the current to flow back to the power source. It carries the current back to the electrical panel to ensure a balanced flow of electricity and to prevent electrical hazards.


What are the effects of having too many circuits plugged in?

Circuits are not plugged in. An electrical circuit is the way the voltage from the electrical panel boardis supplied to the load that is to be energized. Circuits come in many different capacities depending on the circuit breaker and wire size that connects to the circuit's load. If the load is greater than the capacity of the circuit's conductor that the breaker protects, then the breaker will trip and drop the overload current offline. This protects the conductor and the ciruit's load from fault damage.


What is NEC 210-4B?

It is a electrical code rule taken from the National Electrical Code book. It has to do with multi wire branch circuits.


In the United States is a neutral wire used in 120 VAC circuits?

Yes, in the United States, a neutral wire is used in 120VAC circuits to complete the electrical circuit back to the power source. The neutral wire carries the return current from the load back to the electrical panel.


Can 14-2 wire be used for outlets in a residential electrical installation?

No, 14-2 wire is typically used for lighting circuits in residential electrical installations. For outlets, it is recommended to use 12-2 wire to handle the higher electrical load.


What is 14 gauge wire used for in electrical applications?

14 gauge wire is commonly used for general household electrical wiring, such as lighting circuits and outlets. It is suitable for carrying moderate amounts of electrical current safely.