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Can you have only one current carrying conductor in a conduit?
Wiki User
∙ 14y ago
You can have only one current carrying conductor in a conduit, but that conduit must have a slot to relieve the eddy currents that will be created by the transformer effect created by the conductor. It is better to run the neutral or opposite conductor along with the hot conductor together in the same conduit, or through the same penetration, so as to minimize this effect.
Wiki User
∙ 14y ago
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Do all current carrying conductors emit electromagnetic waves?
No. Only those carrying AC. Those carrying DC have a constant magnetic field around them and emit no waves.
Does electric current flow only on the surface of the copper conductor?
The AC current tend to flow on the surface of the conductor. The higher the frequency, the thinner the skin. This is known as the skin effect. So DC current flow throught the entire conductor but when the signal varies (AC) there is the formation of eddy current in the conductor itself and that pushes the electrons at the surface of the conductor. You can get more information on the skin effect and skin depth on wikipedia : http://en.wikipedia.org/wiki/Skin_effect http://en.wikipedia.org/wiki/Skin_depth
Something that will not let electricity flow through it is a?
Note that "electricity" doesn't flow, only current does, which is one aspect of electricity, does. Current is the flow of electrons. Bad conductor of current, or an insulator.
How much current will flow in service wire?
In a service drop conductor the only limiting factor is the first over current device down stream from the service.
Will mixing 12 gauge wiring with 14 gauge wiring cause a gfci to trip?
no it will only decrease the current carrying capability
What is the difference between one current carrying conductor in a conduit and a hot and switch leg in a conduit?
In the first part of the question there will be only one wire in the conduit, in the second part of the question there will be two wires in the conduit.
A coil of wire with a current is called a?
A coil of current carrying wire wrapped around an iron core, with at least two taps (one including the entire winding, and one including only part of the winding) is a transformer, or more specifically an auto transformer.
If a fuse becomes hot under normal load a probable cause is?
A fuse is nothing more than a conductor [wire] that is smaller than the conductor wire in circuit which the fuse is designed and intended to protect. The amount of current [measured in Ampheres (Amps)] creates some "resistance heating" in any conductor. The greater the current in relation to the size [and current carrying capacity] of the wire, the greater the heat generated. A fuse that runs warm or hot only indicates that it is carrying a lot of current, possibly near it's limit. When the current limit is reached, the fine wire in the fuse will melt [fuse], opening, or breaking, the circuit thus stopping the flow of current and protecting the conductor wire.
Can an overhead conductor carry more current on a cold day as compared to a hot day?
The only limit on how much current the conductor can carry, regardless ofthe weather, is the amount of current that causes the conductor to melt.The current in such a conductor depends on the voltage between its ends,and on the resistance of the conductor. The resistance of the conductor issomewhat less when it's cold, so a given voltage would result in more current.
Can ground conductor use as a neutral conductor in a house wiring?
No. Absolutely not. The ground conductor is not rated to carry constant current flow. It is only rate to carry fault current flow.
How do you mesure 3A current capacity?
Current Capacity of a conductor depends on may things, and not only its size and material. Also important are the conditions in which it will be used, the allowable temperature increase and acceptable voltage drop. Measuring the current carrying capacity would involve measuring all those variables under load.
Explain why current is not a vector though it appears to posses a direction?
Its direction is wherever the conductor goes. Once the conductor is configured, the current has only two choices ... forward or backward, denoted by positive or negative current.
What would one use a clamp on meter for?
A clamp meter measures the vector sum of the currents flowing in all the conductors passing through the probe, which depends on the phase relationship of the currents. Only one conductor is normally passed through the probe. In particular if the clamp is closed around a two-conductor cable carrying power to equipment, the same current flows down one conductor and up the other; the meter correctly reads a net current of zero.
What is the Acceptable current in ground cable?
A ground is not expected to carry any current. It's only there in case of a fault condition. If you have a current reading through a ground wire there is a fault that needs to be corrected. Many times a lazy electrician who couldn't find a broken neutral connected a receptacle or light fixture to ground to make it work. This is not a proper use of the grounding system, and it is dangerous and should be corrected if encountered. The grounding conductor should have at least the same ampacity of the largest phase conductor connected to the circuits it protects. That way it is capable of carrying the full current of the largest conductor in case of a fault.
Current-carrying of a machine?
Confucious say, an answer may only be found where a question exists.
What is a magnet made with a battery?
An electromagnet. Anytime electrical current flows through a conductor, a magnetic field is produced.
Why 2 different phase wire are not supposed to pass through same conduit?
According to the wording ,2 different phase wires "can" run through the same conduit. Not only can they, but if they are part of the same circuit they must. And in cases where conductors are paralleled, meaning more than one conductor per phase as is common in commercial and industrial installations, you put one conductor of each phase and a neutral, if one exists, and a ground in each conduit. Not doing so, meaning to put all of one phase in one conduit, causes a voltage to be induced into the conduit and a tremendous amount of heat builds up. Even when using pvc or other non-metallic conduit, somewhere along the way you have something metallic and have the same problem. To simplify, you must put all conductors associated with the same circuit in the same conduit.
