Depends on the load it will carry which you failed to list.
12 gauge underground wire or if you think you will ever add any devices to this circuit use 10 gauge.
Yes, it must have a standoff, and the proper service head in. I would run it underground instead of overhead. Use underground wire in a conduit.
Comcast will install the wiring for you. They do not allow homeowners to run their own wire because they lose quality control. Typically Comcast will run a 1 inch conduit for underground installations. The wire most commonly used it RG-6 quad. comcast doesnt install conduits anymore because it was just too costly so it is upto the homeowner to have have that installed by a general contractor and then comcast will have pull in the new line for you.
Need to know what size service is going to be installed at the end of the run.
For a 3-phase 400 amp underground installation, you typically need to use a minimum of 250 kcmil copper wire or 350 kcmil aluminum wire, according to the National Electrical Code (NEC). However, factors such as the length of the run, ambient temperature, and installation conditions can affect the size requirements, so it's important to consult local codes and regulations or an electrician to ensure compliance and safety. Additionally, consider using larger wire sizes for voltage drop purposes if the distance is significant.
Yes, that is fine as long as the wire does not run underground. If it does run underground you need 14-2U wire.
The maximum distance to run electrical wire underground without compromising safety or efficiency depends on factors like wire size, voltage, and local building codes. In general, it is recommended to consult with a licensed electrician to determine the appropriate distance for your specific situation.
12 gauge underground wire or if you think you will ever add any devices to this circuit use 10 gauge.
Depends on how much wattage the load on this circuit will be. Definately not 14/2. Make sure to run the wire through conduit or use dedicated underground wire, and put this on a GFIC circuit.
Yes, it must have a standoff, and the proper service head in. I would run it underground instead of overhead. Use underground wire in a conduit.
No, it is not possible to run Romex wire directly underground in a basement. Romex wire is not rated for direct burial underground and should not be used in this application. Instead, you should use UF-B (underground feeder) cable or conduit with appropriate wiring for underground installations.
The wire size depends on the amperage, not the voltage. The fact that the welder runs on 440 volts does not affect the wire size! You need to ask this question instead: What size wire do you need for a three phase welder on an eight foot run if the nameplate amps are 45A?
45
Comcast will install the wiring for you. They do not allow homeowners to run their own wire because they lose quality control. Typically Comcast will run a 1 inch conduit for underground installations. The wire most commonly used it RG-6 quad. comcast doesnt install conduits anymore because it was just too costly so it is upto the homeowner to have have that installed by a general contractor and then comcast will have pull in the new line for you.
Need to know what size service is going to be installed at the end of the run.
For a 3-phase 400 amp underground installation, you typically need to use a minimum of 250 kcmil copper wire or 350 kcmil aluminum wire, according to the National Electrical Code (NEC). However, factors such as the length of the run, ambient temperature, and installation conditions can affect the size requirements, so it's important to consult local codes and regulations or an electrician to ensure compliance and safety. Additionally, consider using larger wire sizes for voltage drop purposes if the distance is significant.
You size wire by the current. Various insulations are rated for voltage, temperature and the medium where the wire will be run.