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Overcurrent current protection is for the wires
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∙ 12y ago
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When installing a circuit breaker do you size the breaker to correct wire size or the device its controlling?
When installing a circuit breaker, you size the breaker based on the wire size. The breaker should be matched to the ampacity of the wire to ensure proper protection against overloads and short circuits. The device being controlled by the breaker is not a determining factor in sizing the breaker.
Can I you use existing 8 3 wire hooked to a 30amp breaker was hooked to old electric heater to wire a heater that requires 10 2 wire its a 5000watt 240volt heater?
Yes the wire size is larger for that size breaker but will not effect the 30 amp breaker protection of that circuit.
How do you tell if a wire is shorted out?
If by meaning wire as a circuit, when turning on the circuit the fuse will blow the circuit open, or if the protection is a breaker, the breaker will trip. This is all on the conjecture that there is a return path for the current to flow. This is the main reason for ground wires on all equipment, to provide a return path for the current to flow back to the source.
What is the purpose of the third wire?
By "third wire" I believe you are speaking of the ground wire. Its only purpose is to ensure that the over-current device, which is the breaker or fuse, operates property when a fault exists in the circuit. Without the ground wire you increase your risk of injury, death, or property damage. It is there for your protection. Do not remove it. Always choose to use it when it exists.
How do you avoid overheating of the electrical wiring of the equipment?
Overheating of electrical wiring is overcome by installing the correct size conductors to carry the load amperage of the equipment. Use a larger size wire to the load. The main purpose of the breaker is to protect the wire that is connected to it. If the wire becomes overloaded due to a high current flow the breaker will trip.
When installing a circuit breaker do you size the breaker to correct wire size or the device its controlling?
When installing a circuit breaker, you size the breaker based on the wire size. The breaker should be matched to the ampacity of the wire to ensure proper protection against overloads and short circuits. The device being controlled by the breaker is not a determining factor in sizing the breaker.
Can I you use existing 8 3 wire hooked to a 30amp breaker was hooked to old electric heater to wire a heater that requires 10 2 wire its a 5000watt 240volt heater?
Yes the wire size is larger for that size breaker but will not effect the 30 amp breaker protection of that circuit.
How do you tell if a wire is shorted out?
If by meaning wire as a circuit, when turning on the circuit the fuse will blow the circuit open, or if the protection is a breaker, the breaker will trip. This is all on the conjecture that there is a return path for the current to flow. This is the main reason for ground wires on all equipment, to provide a return path for the current to flow back to the source.
What is the purpose of the third wire?
By "third wire" I believe you are speaking of the ground wire. Its only purpose is to ensure that the over-current device, which is the breaker or fuse, operates property when a fault exists in the circuit. Without the ground wire you increase your risk of injury, death, or property damage. It is there for your protection. Do not remove it. Always choose to use it when it exists.
How do you avoid overheating of the electrical wiring of the equipment?
Overheating of electrical wiring is overcome by installing the correct size conductors to carry the load amperage of the equipment. Use a larger size wire to the load. The main purpose of the breaker is to protect the wire that is connected to it. If the wire becomes overloaded due to a high current flow the breaker will trip.
How do you wire a 277 to 120 volt transformer?
The voltage 277 volts is a three phase line to neutral voltage of a 480 volt system. What is needed for the protection of the transformer is a two pole breaker from the 480 volt CDP (Central Distribution Panel). The breaker will be sized to the KVA of the transformer. The wire will be sized to the breaker plus 25%. The electrical code requires that on motor and transformer feeders, they be sized to 125% of the total current capacity of the equipment.
What is the cable size for 7.5kw slit system air conditioner?
The wire is sized to the maximum overcurrent protection device (Max circuit breaker) ampacity. This is listed on the nameplate of the outdoor condensing unit. Size the wire to match the breaker.
How do you wire a 15 amp breaker?
Ground wire connects to the ground bar, white wire connects to the neutral bar, and black wire connects to the breaker. Be sure and turn off main breaker before installing the wire or the breaker.
How do you change wire fuse for circuit breaker?
A circuit breaker does not have a wire fuse in it.
Is the wire running to a 20amp breaker different from a wire running to a15amp breaker?
Yes, a 20 amp breaker requires AWG # 12 copper wire. A 15 amp breaker requires AWG # 14 copper wire.
How do you replace a 15 amp breaker in the circuit box?
The breaker will have a black wire connected to it. Turn off the main breaker and then disconnect that black wire from the breaker. The breaker will snap into the main bar. Remove the breaker and install the new one. Reconnect the black wire to the breaker and then install the cover and turn the main breaker back on.
Can you wire 2 bedroom on 1 breaker?
You can't wire 2 beedrooms on one breaker.
