30 amp generator with 12 gauge wire?????
Ok, have a quick question for you electrical guys. I had to pull my Onan 4000 generator for some landing gear work. Noticed that the AC feed wires are 12 gauge and about 6' long before a junction box ...
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smkettner wrote:
Also depends on the wire insulation rating. IIRC Typical romex is 60° while THNN is 90° or 105° and can carry a bit more.
The temp rating of THNN being 90 or 105 is you wasting electrical energy that you are paying for and going up in watts and resistance, raising the temperature of the wire when run at continuous high electrical loads. If the wire is making heat, on a regular basis, go down a gauge in wire, or up a size in thickness of the wire, to get rid of the heat losses.
