1/0 Welding Wire Vs 1/0 Alumnium Wire

I wouldn't recommend putting that stuff in a car. I've tried it in my truck and it's a pain to make connections with and run. You can use this stuff: https://weldingsupply.securesites.com/cgi-bin/einstein.pl

Here's what the welding wire in my truck looks like:

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Next to Kicker Hyperflex and some old skool Knu wiring:

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when looking at wire size remember even if you have two pieces of wire that are 1/0 the piece that has more strands can handle more amps OUTRIGHT NO EXCEPTIONS. I'm a journeyman electrician so take my word for it.
can you explain why? because dc does not have the skin effect ac does.if so people may wish to throw out all theyre bus bars and start useing sh it loads of wire

 
copper is a better conductor ask any electrician the aluminum is just lots cheaper. QUOTE]
Copper has a higher ampacity rating. When using aluminum conductors, the standard is to go to the next recommended size for the application. That is per the NEC(National Electrical Code).
chicago code does not allow al wire due to it being a fire hazard. Some package AC units have aluminum wire in then and sometimes inspectors get anal and make you rewire it if its a big one, at least the power wire to the contactors and motors. control wires they let slide. It just the big wires keep expanding and contracting and a few years later they are all loose in the connectors, then it's time to get the marshmallows
 
chicago code does not allow al wire due to it being a fire hazard. Some package AC units have aluminum wire in then and sometimes inspectors get anal and make you rewire it if its a big one, at least the power wire to the contactors and motors. control wires they let slide. It just the big wires keep expanding and contracting and a few years later they are all loose in the connectors, then it's time to get the marshmallows
Local codes do sometimes excede the national code, as you probably know, it is the minimum allowed. Where i work, aluminum conductors are not allowed at all, copper only.
 
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