Running AC from Generator 150 feet away
I have a TT with a 13,500 BTU Dometic AC and am struggling with finding a good way to power it. My off grid property has an Onan 5.5 KW propane generator for use when the solar system needs charged or...
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Yes, your wire is too small. I'm kind of surprised because I've run my air conditioner on 125' of 12 gauge extension cord plus the camper's #10 cord and it worked fine. My voltage stayed around 104 - 108 if I remember correctly.
I wouldn't run romex under the grass, it's not rated for outdoor use or wet locations. You would want to run UF cable in that application or better yet, run PVC conduit with individual conductors.
According to Southwire's calculator #10 should be large enough. So, maybe you have some other high resistance wire problem or a generator problem. If you run new wire I would at least go to #6, it's not much more than #8. If you went even bigger to #4 you would see a bigger price jump.
I wouldn't run romex under the grass, it's not rated for outdoor use or wet locations. You would want to run UF cable in that application or better yet, run PVC conduit with individual conductors.
According to Southwire's calculator #10 should be large enough. So, maybe you have some other high resistance wire problem or a generator problem. If you run new wire I would at least go to #6, it's not much more than #8. If you went even bigger to #4 you would see a bigger price jump.
