Originally Posted by swburbguy
As an electrician 16ga cord is too small. There is a thing called voltage drop. The longer the distance the more the voltage drop.You need a higher guage cord. You will screw things up with the voltage drop. JMHO
My answer to the OP's question is as short as possible and as big as possible. I've never heard of anybody having problems because the size or gauge of their extension cord was too big.
On the other hand, I have seen some cords with melted insulation or plugs because they were too small or excessively long.
I have IIRC a 25' 30 amp cord and a 50' 30 amp cord, both 10 gauge I believe. I hardly ever use the 50' and seldom use the 25' since the trailer cord is usually sufficient to reach the plug in.
FAA A&P mechanic, ex-RV dealer parts dept
Retired B-52 Gunner/Flight Examiner, B-52 Crew Chief
2016 Jayco Eagle HT 29.5 FBDS w/ 15,000 BTU AC, 50 amp service, upgraded counter top, thermal pane windows, elec. stab jacks, outside grill, backup camera and MORryde pin box.
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