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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.

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Q: Why 2 different phase wire are not supposed to pass through same conduit?
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Related questions

Can you run different phases in the same conduit?

In the US, the National Electrical Code (NEC) will allow you to install single phase and three phase systems in the same conduit.


Can a three phase circuit be installed in the same conduit or in different conduits?

The conductors of any three phase circuit must be run in the same conduit. If the circuit requires a neutral, it must also run with the conductors in the same conduit. (If they were to be run in more than one conduit or raceway, the circuit would not operate properly.)


Is conduit necessary for single phase wiring?

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Why should phase and neutral wire be put together in the metal conduit?

to prevent live conduit in case of short circuit


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Usually, yes a phase of the moon is supposed to be capitalized.


Can you run two 2 pole single phase circuits in the same conduit?

Yes, this only adds up to four wires. The wire sizing is dependant on the amperage of the two single phase loads. Remember to calculate the conduit fill of the four wires to make sure that you have the correct size conduit for the installation.


Can 3 phase power and single phase be ran in the same conduit?

Yes they can. There are regulations that cover most jurisdictions regarding how different cables can be contained. It is important that you are knowledgeable about your local requirements before starting the work.


What is the significance of the stationary phase in gas chromatography?

The stationary phase is the medium that is used to react with the mobile phase. The molbile phase is sent through the column. The stationary phase is inside the column and reacts with your carrier liquid (mobile phase) which contains the sample that you want to be analyzed. Stationary phase is different for every column because you need different mediums for different tests.


When paralleling a service must the sets of conductors be in separate conduits or can they be in the same conduit?

They can be either separated or combined. What governs the choice is the size of the service and the conductors feeding the service and the ability to physically connect metering equipment to larger size conduits. When paralleling conduits make sure all the phase wires are in their individual conduits to cancel the field effect of the wires. Eg. conduit 1 - L1 + L2 + N , conduit 2 - L1 + L2 + N. Likewise with three phase, conduit 1 - L1, L2, L3, conduit 2 L1, L2, L3.


What is the normal phase of ununoctium?

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What is info on a 120V through its double 20A breaker and 10-2 plus a separate bare ground inside plastic flex conduit to a three-prong 240V outlet box?

So what's your question? 110V would be hot to neutral/ground. 220V is hot-to-hot (phase to phase).


What size conduit for 400amps?

The sizing of conduit systems that wire has to be pulled into is dependant on the physical size of the conductor being drawn into the conduit. The second governing factor is the conductor count of the specific conductor that is needed. A 500 MCM copper conductor with an insulation factor of 90 degrees C is rated at 430 amps. This is where the conductor count is need by the service, as to whether the service is single or three phase. In this specific case, the electrical code will allow both single and three phase installations to use the same size conduit. A maximum total of four 500 MCM conductors can be drawn into a 78 mm diameter conduit.