Voltage. The first step is to determine the welder's
input Power requirement in Watts and it's input Voltage.
The welder might list "Minimum Circuit Ampacity",
which tells you the minimum amount of current
the supply circuit must be capable of carrying. If not,
divide Watts by Volts for Amps.
(Example: 10kW ÷ 208/240V ≈ 48 Amperes)
Next determine the distance between the supply panel
and the welder's outlet.
(Example: 48Amps, 220/V,100ft)
Now use a wire size calculator to determine minimum
wire gauge.
http://www.southwire.com/support/voltage...
The link above calls for AWG#6 to limit Voltage drop
to less than 3%.
By using THHN insulation, your are protected to 600V.
There are meggers (insulation breakdown testers)
which permit testing of older existing wiring;
but the first step is to ensure the size of the wiring
is adequate.
I have your comment.
Insulation ratings cover Voltage and Current because
higher currents require more heat resistance. So long as the wiring is rated for the current it will carry
(including derating factors for distance, ambient temp,
number of conductors per enclosure, etc), the insulation will not degrade. All house current wiring
is rated 600V minimum, and insulation failure would have no effect on your welder. Where did you get the idea?
Oh Boy! another monkey who can hold a screwdriver and thinks he is an electrician. Sorry to be so hard on you but you clearly do not understand the very basics of electrical installation, this is obvious by your questions.We need to know,
is the welder single or bi phase
How much current does it draw
How long is the wiring run, among other things.
Does your welding machine REALLY run at 1000 volts? I havent heard of a commercial welding machine that needs that kind of voltage.
You just need a flux wire welder, connect it to the wire you want to test and you get the result. Correct me if I am wrong.
And if you hesitate to do it manually just contact any experienced welders or company that deliver welders on rent or lease. Red D Arc Welderrentals is a popular name in rental of welding equipment.
Your hand.
I want to test my welding machine circuit that we installed in the house, but I want to test the 'limit' of the wire first, before I plug in an expensive welding machine, only to find that it is going to short. Is there a tool that runs say a 1000 volts through the wire to test if it can handle what the welding machine will put it through? I'm sure there is, but I don't know the name?
