A 350 MCM aluminum conductor with an insulation factor of 90 degrees C is rated at 260 amps.
The conductor can be pulled into conduit and then buried but it is not certified for direct earth burial.
The frequency has no direct relationship to the size of wire. Wire is sized as to the amount of current a load draws in a circuit.
When electrons always flow in the same direction in the wire it is known a DC (direct current).
About 5 A It's 38 AWG, which fuses at 3 amps.
If the wire is to be buried you'll need to use "direct burial" wire; if you're staying inside the house, just under the floor and above the concrete or dirt, standard romex should be fine.
Is30awg_wire_ok_for_direct_burial
Wire in conduit for underground feeders has to have an insulationrating for wet and damp locations. In the marketplace there is also wiring thathas an insulation rating for direct burial that does not need to be installed into conduit.
The most significant part of the equation is, what will be the maximum current draw? If it's to be a small current draw, for example 40 Amp service (40 amp breaker), you'll use 8AWG wire that's rated for direct burial. Higher current rating will require larger wire. As always, if you have any questions about the proper wiring or how to connect electrical service, contact a local electrical contractor. Understand that improper wiring can result in fire and/or death.
The conductor can be pulled into conduit and then buried but it is not certified for direct earth burial.
It is a wire with special insulation that protects it under ground. On the wire there will be a stamp "UF" or underground feeder. That means that it can be buried directly in the earth.
The larger in diameter the wire is, the larger the current carrying capacity the wire has.
direct current
Wire size is rated by Amperes of current. You did not mention the wire size of the aluminum wire, so there is no way to answer your question. The voltage rating is more a rating of how good the insulation around the wire is.
There are cables approved for direct burial. These will have markings on them like USE or URD. There is no way to answer your question without knowing the specific type of cable you have. If it is not approved for direct burial and you decide to put it inside an underground conduit there are still regulations that apply. Underground conduit is classified as a 'wet' location, so the wire still must have the rating for wet locations. Not all types of wire do. If you are concerned that you may not have the correct wire, have a qualified electrician look at it. Don't try to dig it up to look yourself, especially if it is live! If the wire is not approved for direct burial, it will eventually corrode and fail. Since it is underground, there is little likelyhood someone will be hurt, but you will certainly be left in the dark!
Depends on the current rating which should be on the motor.
The ambient insulation rating of wires and cables is imprinted on the wire and cables. The labels on the cables will tell you the wire size, number of conductors and temperature rating of the wires and cables. The higher the cable and wire temperature ratings the higher the amount of current that is allowed to be drawn by the wire and cable according to the electrical code book.
12/3 will work.