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.
Need to know what size service is going to be installed at the end of the run.
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.
You size wire by the current. Various insulations are rated for voltage, temperature and the medium where the wire will be run.
Yes, that is fine as long as the wire does not run underground. If it does run underground you need 14-2U wire.
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.
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?
Need to know what size service is going to be installed at the end of the run.
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.
45
You size wire by the current. Various insulations are rated for voltage, temperature and the medium where the wire will be run.
Number 10 thnn copper wire.
The minimum size wire that can be paralleled together stated in the electrical code book is a #3 copper conductor.
They run $90-200 depending on the source.